WO2024125475A1 - Burner, gasification device and waste incineration treatment system - Google Patents

Abstract

The present disclosure relates to the technical field of burners, and provided are a burner, a gasification device and a waste incineration treatment system. The burner comprises a casing, a combustion cone assembly and a secondary combustion chamber assembly, wherein the combustion cone assembly is connected to the casing and is provided with a rotating cone, which is rotationally arranged inside the casing and is provided with a first cavity; and the secondary combustion chamber assembly is provided with a second cavity, which is in communication with the first cavity. The burner of the present disclosure can optimize the structure of a product and improve the burning efficiency.

Description

Burners, gasification devices and waste incineration systems

CROSS-REFERENCE TO RELATED APPLICATIONS

This disclosure claims the priority and benefits of Chinese Patent Application No. 2022115915309, filed on December 12, 2022; the priority and benefits of Chinese Patent Application No. 2023104480204, filed on April 24, 2023; the priority and benefits of Chinese Patent Application No. 2023100029653, filed on January 3, 2023; the priority and benefits of Chinese Patent Application No. 2022116255876, filed on December 16, 2022; the priority and benefits of Chinese Patent Application No. 2023104169978, filed on April 18, 2023; the priority and benefits of Chinese Patent Application No. 2023104531795, filed on April 25, 2023; the priority and benefits of Chinese Patent Application No. 20231 The priority and rights of the Chinese patent application with application number 05829227 and application date May 22, 2023; the priority and rights of the Chinese patent application with application number 2022234242653 and application date December 16, 2022; the priority and rights of the Chinese patent application with application number 2023200091912 and application date January 3, 2023; the priority and rights of the Chinese patent application with application number 2023209869233 and application date April 26, 2023; the priority and rights of the Chinese patent application with application number 2023210108483 and application date April 28, 2023; the priority and rights of the Chinese patent application with application number 2023209753449 and application date April 26, 2023; the entire contents of the above-mentioned Chinese patent applications are hereby incorporated into the present disclosure by reference.

Technical Field

The present disclosure relates to the technical field of burners, and in particular to a burner, a gasification device and a garbage incineration treatment system.

Background technique

The burner uses a mixture of fuel and air for combustion. Based on the application scenario and fuel type, there are different requirements for the structure of the burner to ensure combustion efficiency.

Summary of the invention

The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

To this end, the embodiments of the present disclosure provide a burner, a gasification device and a waste incineration treatment system.

The burner of the disclosed embodiment includes a casing, a combustion cone assembly and a secondary combustion chamber assembly;

The combustion cone assembly is connected to the casing, and has a rotating cone. The rotating cone is rotatably arranged in the casing and has a first chamber. The secondary combustion chamber assembly has a second chamber, and the second chamber is communicated with the first chamber.

The gasification device of the embodiment of the present disclosure includes the above-mentioned burner.

The waste incineration treatment system of the embodiment of the present disclosure includes:

A burner, wherein the burner is the above-mentioned burner, and the burner has a feed port for inputting garbage, a slag outlet for discharging incineration ash, and an air outlet for discharging incineration smoke;

A flue gas treatment unit, the flue gas treatment unit comprising a waste heat recovery component and a second purification component, the air inlet of the waste heat recovery component is communicated with the air outlet of the burner, and the waste heat recovery component can recover the heat of the incineration flue gas, the air inlet of the second purification component is communicated with the air outlet of the waste heat recovery component, and the second purification component can purify the incineration flue gas;

An ash collecting bin, a feed port of the ash collecting bin, the waste heat recovery component and the slag port of the second purification component are all connected, and a discharge port of the ash collecting bin is connected to a feed port of the burner.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural view of a burner according to an embodiment of the present disclosure.

FIG. 2 is a structural view of a burner according to another embodiment of the present disclosure.

FIG. 3 is a schematic diagram of a rotating cone in an embodiment of the present disclosure.

FIG. 4 is a schematic diagram of a secondary combustion chamber assembly in an embodiment of the present disclosure.

FIG. 5 is an enlarged schematic diagram of portion A in FIG. 2 .

FIG. 6 is a schematic structural diagram of a secondary combustion chamber assembly in another embodiment of the present disclosure.

FIG7 is a schematic cross-sectional view of the B-B perspective in FIG6 .

FIG. 8 is a schematic diagram of the structure of the feeding device in the embodiment of the present disclosure.

FIG. 9 is a schematic structural diagram of a combustion-supporting device in an embodiment of the present disclosure.

FIG. 10 is a schematic diagram of the structure of a coke clearing device in an embodiment of the present disclosure.

FIG. 11 is an enlarged schematic diagram of C shown in FIG. 10 .

FIG. 12 is a schematic structural diagram of a burner according to another embodiment of the present disclosure.

FIG. 13 is a schematic structural diagram of the exhaust fins of the burner according to an embodiment of the present disclosure.

FIG. 14 is a schematic structural diagram of an air distribution assembly of a burner according to an embodiment of the present disclosure.

FIG. 15 is a schematic diagram of the structure of the exhaust fins in the closed condition of the burner according to an embodiment of the present disclosure.

FIG. 16 is a schematic diagram of the structure of the exhaust fins of the burner in the open condition according to the embodiment of the present disclosure.

FIG. 17 is a schematic structural diagram of an air supply device of a burner according to an embodiment of the present disclosure.

FIG. 18 is a schematic diagram of the structure of the air distribution disk of the air supply device in the embodiment of the present disclosure.

FIG. 19 is a schematic diagram of a burner of a gasification device according to an embodiment of the present disclosure.

FIG. 20 is a schematic diagram of a gasification device according to an embodiment of the present disclosure.

FIG. 21 is a schematic diagram of a gasification device according to another embodiment of the present disclosure.

FIG. 22 is a schematic diagram of a gasification device according to another embodiment of the present disclosure.

FIG. 23 is a schematic structural diagram of a waste incineration treatment system according to an embodiment of the present disclosure.

Detailed ways

Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, but should not be understood as limiting the present disclosure.

The burner of the present invention is described in detail below. The burner of the present invention includes a housing 11, a combustion cone assembly 12 and a secondary combustion chamber assembly 13, wherein the combustion cone assembly 12 is connected to the housing 11, and the combustion cone assembly 12 has a rotating cone 121, which is rotatably disposed in the housing 11 and has a first chamber 1212, and the secondary combustion chamber assembly 13 has a second chamber 1318, and the second chamber 1318 is connected to the first chamber 1212.

The inventors realized that atmospheric precipitation (rain and snow) would fall on the garbage during the garbage stacking process. In addition, the garbage itself contains water, and the biochemical decomposition of organic matter in the garbage also produces water. After the water has leached through the garbage, it becomes sewage, also known as garbage leachate. In the related art, garbage leachate usually needs to be treated in a garbage treatment plant equipped with special sewage treatment equipment, which increases the operating cost of garbage treatment.

Based on this, as shown in FIG1 , the burner of the embodiment of the present disclosure includes a casing 11 , a combustion cone assembly 12 and a secondary combustion chamber assembly 13 ;

Specifically, the combustion cone assembly 12 is connected to the casing 11, and the combustion cone assembly 12 includes a rotating cone 121 and a powdered fuel inlet pipe 122. The rotating cone 121 is rotatably disposed in the casing 11 and has a first chamber. One end of the powdered fuel inlet pipe 122 is located outside the casing 11, and the other end extends into the first chamber. The secondary combustion chamber assembly 13 has a second chamber connected to the first chamber, and the secondary combustion chamber assembly 13 includes a first cone 1311 and a second cone 1312. The first cone 1311 is penetrated on the casing 11, and the part of the first cone 1311 located outside the casing 11 is provided with a fuel inlet 1313 connected to the second chamber, the second cone 1312 is connected to one end of the first cone 1311 away from the casing 11, and the second cone 1312 is provided with a nozzle 1314 connected to the second chamber, and the nozzle 1314 is suitable for spraying leachate into the second chamber.

In other words, in the burner of the present invention, the powdered waste can be transported to the first chamber of the rotating cone 121 through the powdered fuel inlet pipe 122 under the drive of the blast device, and the block waste can fall into the first chamber of the rotating cone 121 through the fuel inlet 1313. In this way, the powdered waste and the block waste can be burned in coordination, which improves the waste treatment efficiency without increasing the burner treatment capacity. At the same time, it can also stably provide a high-temperature flue gas flow for the second combustion chamber assembly 13. The high-temperature flue gas flow is firstly transported to the first cone 1311 through the fuel inlet 1313. The lump garbage introduced is preheated at high temperature to increase the combustion speed of the lump garbage, and then the mist-like garbage leachate sprayed in by the nozzle 1314 is heated at high temperature in the second cone 1312 to decompose the organic matter or harmful and toxic substances in the garbage leachate, thereby achieving harmless incineration treatment of the garbage leachate. Therefore, in the burner disclosed in the present invention, the secondary combustion chamber component 13 uses the high-temperature flue gas flow generated by the coordinated combustion of lump garbage and powdered garbage to harmlessly treat the garbage leachate, thereby avoiding the addition of sewage treatment equipment in the garbage treatment plant and reducing the operating cost of garbage treatment.

It can be understood that, in the burner disclosed in the present invention, when the calorific value of powdered waste is low, lump waste with higher calorific value can be introduced into the first chamber for coordinated combustion; conversely, when the calorific value of lump waste is low, powdered waste with higher calorific value can be introduced into the first chamber for coordinated combustion. Thus, the fuel with higher calorific value can provide a combustion-supporting effect for the fuel with lower calorific value, thereby improving the reliability of the burner disclosed in the present invention for the incineration treatment of low calorific value waste, and ensuring that the high-temperature flue gas flow can be stably supplied to the secondary combustion chamber assembly 13.

According to the burner of the embodiment of the present disclosure, the combustion cone assembly is connected to the casing, and the combustion cone assembly includes a rotating cone and a powder fuel inlet pipe, the rotating cone is rotatably arranged in the casing and has a first chamber, one end of the powder fuel inlet pipe is located outside the casing, and the other end extends into the first chamber, the second combustion chamber assembly has a second chamber connected to the first chamber, and the second combustion chamber assembly includes a first cone and a second cone, the first cone is passed through the casing, and the portion of the first cone located outside the casing is provided with a fuel inlet connected to the second chamber, the second cone is connected to one end of the first cone away from the casing, and the second cone is provided with a nozzle connected to the second chamber, and the nozzle is suitable for injecting fuel into the second chamber The garbage leachate is sprayed into the burner. Therefore, in the burner disclosed in the present invention, the powdered garbage can be transported to the first chamber of the rotating cone through the powdered fuel inlet pipe, and the block garbage can fall into the first chamber of the rotating cone through the fuel inlet through the second chamber, so that the block garbage and the powdered garbage can be burned cooperatively in the first chamber. The secondary combustion chamber component can use the high-temperature flue gas flow generated by the cooperative combustion of the block garbage and the powdered garbage to heat the misted garbage leachate sprayed from the nozzle at high temperature, decompose the organic matter or harmful and toxic substances in the garbage leachate, realize the harmless incineration treatment of the garbage leachate, avoid adding sewage treatment equipment in the garbage treatment plant, and reduce the operating cost of garbage treatment.

Further, as shown in FIG. 1 , the cross section of the second chamber of the first cone 1311 gradually decreases in a direction away from the housing 11 , and the cross section of the second chamber of the second cone 1312 gradually increases in a direction away from the housing 11 .

In other words, the first cone 1311 has a conical second chamber that gradually decreases toward the second cone 1312, and the second cone 1312 has a conical second chamber that gradually decreases toward the first cone 1311. As a result, the high-temperature flue gas flow is discharged into the second cone 1312 after passing through the throttling speed increaser of the first cone 1311, thereby reducing the heat loss of the high-temperature flue gas flow in the first cone 1311 and ensuring that the temperature of the high-temperature flue gas flow entering the second cone 1312 meets the requirements for leachate treatment. In the second cone 1312, the high-temperature flue gas flow is decelerated due to the expansion of the flow, thereby maximizing the contact time with the leachate spray and ensuring the complete treatment of the leachate.

Preferably, the spraying cycle of the garbage leachate can be controlled by the nozzle 1314, so that the garbage leachate is sprayed into the secondary combustion chamber component 13 intermittently, so as to avoid that too much garbage leachate is sprayed into the secondary combustion chamber component 13 and cannot be processed in time.

Furthermore, as shown in Figure 1, the second combustion chamber assembly 13 is also provided with a first igniter 1315 and a second igniter 1316. The first igniter 1315 is arranged in the first cone 1311, and the first igniter 1315 is adjacent to the fuel inlet 1313. The second igniter 1316 is arranged in the second cone 1312, and the second igniter 1316 is adjacent to the nozzle 1314.

It can be understood that the additional first igniter 1315 and the second igniter 1316 increase the fire source in the secondary combustion chamber assembly 13. When the supply of high-temperature flue gas flow discharged from the first chamber to the second chamber is unstable, the block fuel can be pre-combusted by turning on the first igniter 1315, or the second igniter 1316 can be turned on to directly decompose the leachate sprayed into the nozzle 1314, thereby alleviating the processing pressure of the leachate when the high-temperature flue gas flow is insufficient, thereby improving the applicability of the burner disclosed herein.

Further, as shown in Figure 1, the central axis of the powdered fuel inlet pipe 122 is colinear with the midline axis of the rotating cone 121, and the outer wall of the part of the powdered fuel inlet pipe 122 located in the first chamber is provided with an air hole 1221, that is, the powdered fuel inlet pipe 122 is coaxial with the rotating axis of the rotating cone 121, and the rotating cone can rotate around the powdered fuel inlet pipe 122.

It can be understood that the combustion of the block fuel in the rotating cone 121 and the powdered fuel in the powdered fuel inlet pipe 122 will generate hot air flows respectively. The calorific value of the fuel is different, and the hot air flows generated by the combustion are also at different temperatures. When the rotating cone 121 rotates, the powdered fuel is centrifuged under the action of centrifugal force. The hot air flow generated by the fuel will overflow from the air hole 1221 and vortex mix with the hot air flow generated by the block fuel. The mixed vortex airflow can increase the temperature in the first chamber, so that the temperature in the first chamber meets the ignition point of the low calorific value fuel, ensuring that the low calorific value garbage can be stably burned and incinerated.

Further, as shown in Figure 1, the powdered fuel inlet pipe 122 includes an inner tube 1222 and an outer tube 1223. The outer tube 1223 is provided with a spacer ring on the outside of the inner tube 1222 and forms a cold air cavity with the inner tube 1222. The cold air cavity is located at one end outside the casing 11 and has a cold air inlet. Both the inner tube 1222 and the outer tube 1223 have air holes 1221.

It can be understood that the cold air flow can be passed into the cold air chamber from the outside of the casing 11 to cool the inner tube 1222 and the outer tube 1223 of the powdered fuel inlet pipe 122 at the same time. Thereafter, the cold air flow is converted into hot air flow and discharged into the first chamber through the air hole 1221, thereby improving the durability of the powdered fuel inlet pipe 122.

Furthermore, as shown in Figure 1, the burner also includes an air distribution component 14, the rotating cone 121 has a plurality of air distribution pipes 1211 arranged at intervals along its circumference, the plurality of air distribution pipes 1211 are all connected to the air distribution component 14, the air distribution pipes 1211 are provided with air outlets, and the rotating cone 121 also includes a plurality of hoop plates arranged at intervals along the extension direction of its central axis, the hoop plates surround the outer circumference of the plurality of air distribution pipes 1211.

In other words, the air distribution pipe 1211 cooperates with the hoop plate to form a mesh frame-shaped cone wall of the rotating cone 121. At this time, the flow channel of the air distribution pipe 1211 can be used as an air inlet chamber to introduce primary air into the first chamber, and the hoop plate will connect multiple air distribution pipes 1211 in sequence in the form of a ring plate, thereby improving the structural strength of the rotating cone 121 and ensuring the durability of the rotating cone 121. At the same time, the primary air introduced into the first chamber cooperates with the rotation of the rotating cone 121 to put the fuel in a fluidized combustion state, thereby allowing the fuel to fully burn and improve the efficiency of waste incineration treatment.

It can be understood that the circumferentially arranged air distribution ducts 1211 optimize the primary air distribution, allowing the primary air to act evenly on the fuel combustion, ensuring complete combustion of the garbage.

Preferably, a grille can be provided in the mesh frame formed by the gas distribution pipe 1211 and the hoop plate, thereby preventing unburned garbage from falling from the mesh frame and ensuring that the garbage is fully burned.

Further, as shown in Figure 1, the air distribution assembly 14 includes an air distribution box 141, which is rotatably installed on the casing 11 through a bearing 157, and a plurality of first docking holes are provided on the inner plate of the air distribution box 141 facing the rotating cone 121, and a plurality of air distribution pipes 1211 are correspondingly installed in the plurality of first docking holes at one end facing the air distribution box 141, and a powdered fuel inlet pipe 122 is installed on the air distribution box 141.

It can be understood that the air distribution box 141 is connected to the combustion cone through the air distribution pipe 1211, so that the air distribution box 141 and the combustion cone can rotate synchronously to ensure sufficient supply of primary air.

Optionally, the powdered fuel inlet pipe 122 should be rotatably connected to the air distribution box 141, or a through hole for entering the first chamber is provided at the central axis of the air distribution box 141, thereby avoiding obstruction to the rotation of the air distribution box 141 due to the provision of the powdered fuel inlet pipe 122.

Furthermore, as shown in Figure 1, the air distribution assembly 14 also includes an air distribution plate 151 and a plurality of air intake pipes 153 passing through the air distribution plate 151. A plurality of second docking holes opposite to the first docking holes are provided on the outer plate of the air distribution box 141 facing away from the rotating cone 121. The air distribution plate 151 is pressed against the outer plate of the air distribution box 141 by an elastic member and the plurality of air intake pipes 153 are opposite to the plurality of second docking holes.

In other words, on the side of the air distribution box facing the rotating cone 121, the air distribution box forms an integrated structure with the rotating cone 121 through the air distribution pipe 1211 passing through the first docking hole, and the air distribution box rotates together with the rotating cone 121, and on the other side of the air distribution box away from the rotating cone 121, the elastic member presses the air distribution plate 151 against the air distribution box, thereby, the air inlet pipe 153 and the air distribution box are rotatably sealed and connected, that is, the flow channel in the air inlet pipe 153 is intermittently connected with the second docking hole, thereby minimizing the loss of primary air and improving the utilization rate of primary air.

It should be noted that the elastic member always presses the air distribution disc 151 against the air distribution box, and during this process, the air inlet pipe cannot move with the air distribution disc 151. Therefore, a limiting slot can be set on the air distribution disc 151, and the air inlet pipe 153 is engaged in the limiting slot through a limiting protrusion. In this way, the air inlet pipe 153 has a certain amount of mobility relative to the air distribution disc 151, thereby preventing the air inlet pipe 153 from escaping from the air distribution disc 151 during the pressing process.

Further, as shown in FIG. 1 , one end of the rotating cone 121 away from the air distribution box 141 has an exhaust port connected to the second chamber, the exhaust port is open obliquely upward, and the second combustion chamber assembly 13 extends along the opening direction of the exhaust port.

In other words, the second chamber is a downwardly inclined straight channel leading to the exhaust port, and the block fuel can quickly slide down from the second chamber to the exhaust port and enter the first chamber, avoiding blockage in the second chamber, thereby improving the input efficiency of the block fuel.

Furthermore, as shown in Figure 1, the burner also includes a slag discharge assembly 16, which includes a screw conveying shaft 161 and a driving member. The casing 11 has a collecting chamber for installing the screw conveying shaft 161, the collecting chamber is connected to the first chamber, and the collecting chamber has a slag discharge port 162. The driving member can drive the screw conveying shaft 161 to rotate, and the rotation of the screw conveying shaft 161 can transport the ash discharged from the first chamber to the slag discharge port 162 for discharge.

It can be understood that the collection chamber can be arranged below the rotating cone 121. Thus, during the process of incinerating garbage, the ash produced by the burning of garbage in the first chamber will fall from the rotating cone 121 to the collection chamber and be discharged, thereby avoiding excessive ash accumulation in the casing 11 and affecting the circulation of high-temperature flue gas.

Optionally, the driving member can be a rotating handle, which is installed on the outside of the casing 11 and connected to the screw conveying shaft 161. Rotating the rotating handle can drive the screw conveying shaft 161 to rotate, thereby facilitating the staff to perform slag removal operations in a timely manner and ensure the normal operation of the burner.

The inventors realize that the volume of the burner is limited, and the following problems are prone to occur when burning fuel: when the calorific value of the fuel is low, a large amount of fuel needs to be put into the burner per unit time to meet the heat load of the burner, resulting in the volume of the fuel and materials in the burner being greater than the volume of the burner, and part of the fuel will overflow the burner and enter the slag box connected to the burner, thereby causing incomplete combustion of the fuel and reducing the overall combustion efficiency. When the fuel is difficult to burn or difficult to break, it takes a long time for the fuel blocks to burn or break into a small enough size and fall out of the gaps in the burner. As the fuel is continuously filled into the burner, a large amount of large-sized fuel accumulates to a volume greater than the volume of the burner, causing part of the fuel to overflow the burner and enter the slag box, thereby causing incomplete combustion of the fuel and reducing the overall combustion efficiency.

Based on this, referring to FIGS. 2-5 , the burner provided in the embodiment of the present disclosure includes a rotating cone 121 , a secondary combustion chamber assembly 13 and a bubbling bed 139 .

The rotating cone 121 has a first chamber 1212, and the first chamber 1212 contains initial fuel and an oxidant, and the initial fuel and the oxidant burn in the first chamber 1212. The secondary combustion chamber assembly 13 has a second chamber 1318 and a first air inlet 1317, and the first air inlet 1317 and the second chamber 1318 are connected to each other. The chamber 1318 is connected, and the first air inlet 1317 is suitable for introducing the combustion aid into the second chamber 1318.

There is a gap 163 between the first chamber 1212 and the second chamber 1318, and the gap 163 is connected to the first chamber 1212 and the second chamber 1318. The combustible gas, fine ash and fine unburned fuel particles generated by the initial fuel combustion in the first chamber 1212 are carried out of the first chamber 1212 and into the second chamber 1318 by the swirl formed by the combustion aid entering from the first air inlet 1317. Some of the fine ash and fuel particles collide with the inner shell surface of the second chamber 1318, stall and fall from the gap 163.

The bubbling bed 139 has a third chamber 1391, which contains a combustion aid. The third chamber 1391 is connected to the gap 163 and the first chamber 1212. Some fine ash and fuel particles dropped from the second chamber 1318 and some fuel particles in the first chamber 1212 enter the third chamber 1391 and burn in the third chamber 1391.

In the burner of the embodiment of the present disclosure, part of the fine ash and fuel particles generated by the combustion of the initial fuel in the rotating cone 121 collides with the inner shell surface of the second chamber 1318 and falls into the bubbling bed 139 from the gap 163 after stalling. The slag, part of the fuel particles and unburned initial fuel generated after the combustion of the initial fuel in the rotating cone 121 can also fall into the bubbling bed 139 through the gap 163, so that the slag, unburned initial fuel, fuel particles and fine ash can form a bed layer in the bubbling bed 139. The temperature of the bed layer is relatively high, so that the unburned initial fuel can continue to burn in the third chamber 1391. Therefore, the burner of the embodiment of the present disclosure has high combustion efficiency, so that the low calorific value, difficult to burn and difficult to break initial fuel can be burned more fully, thereby improving the overall combustion efficiency.

In addition, for high calorific value, flammable, and easily breakable fuels, the burner of the embodiment of the present disclosure can also increase the burner's designed thermal power by more than 30% without increasing the burner size and slightly increasing the manufacturing cost.

Specifically, the rotating cone 121 can rotate around a first direction relative to the secondary combustion chamber assembly 13, so that the initial fuel in the first chamber 1212 is stirred, can be in more complete contact with the combustion aid in the first chamber 1212, and heat up quickly, thereby improving the carbon conversion rate of the initial fuel.

In some embodiments, the secondary combustion chamber assembly 13 further comprises an outer shell 133, an inner shell 134 and a fuel inlet 1313. The outer shell 133 is arranged around the inner shell 134, and a cooling chamber 1351 is provided between the outer shell 133 and the inner shell 134. The second chamber 1318 is formed in the inner shell 134, and the cross-sectional area of the inner shell 134 gradually increases in the oblique downward direction. The fuel inlet 1313 is connected to the second chamber 1318, and the initial fuel is introduced into the second chamber 1318 through the fuel inlet 1313. The first air inlet 1317 is located at the top of the secondary combustion chamber assembly 13, and the combustion-supporting agent in the second chamber 1318 through the first air inlet 1317 spirally descends from the top of the secondary combustion chamber assembly 13 into the rotating cone 121.

In some embodiments, the central axis of the rotating cone 121 is at an angle α to the horizontal, 35°≤α≤45°. The central axis of the secondary combustion chamber assembly 13 is at an angle β to the horizontal, 35°≤β≤45°, and the angle difference between α and β is less than 10°.

In some embodiments, the first chamber 1212 has a crushing piece in it to crush the initial fuel in the first chamber 1212 that is large in size, slow in reaction and difficult to crush, thereby improving the contact between the combustion aid and the initial fuel and improving the carbon conversion rate of the initial fuel.

Specifically, the rotating cone 121 has a first chamber air inlet 1216 , which is located at the bottom of the rotating cone 121 and communicates with the first chamber 1212 , and the combustion-supporting agent is introduced into the first chamber 1212 through the first chamber air inlet 1216 .

In some embodiments, the outer wall surface of the rotating cone 121 has a hollow wall 1213, and the hollow wall 1213 contains an oxidant. The outer wall surface of the rotating cone 121 has a through hole 1214, and the through hole 1214 is connected to the first chamber 1212. The oxidant in the hollow wall 1213 enters the first chamber 1212 through the through hole 1214.

Specifically, the first chamber air inlet 1216 is connected to the hollow wall 1213, so that the combustion-supporting agent can enter the first chamber 1212 through the hollow wall 1213 to support combustion and blow the initial fuel in the first chamber 1212, so that the initial fuel burns more fully in the first chamber 1212. In addition, the combustion-supporting agent in the hollow wall 1213 can also cool the rotating cone 121.

In some embodiments, the size of the gap 163 in the first direction is 1 cm to 5 cm.

Specifically, if the gap 163 is too large, the size of the fuel falling from the first chamber 1212 into the bubbling bed 139 will be too large, which is not conducive to the fluidized combustion of the fuel in the third chamber 1391. If the gap 163 is too small, a large amount of excess fuel in the first chamber 1212 cannot quickly overflow from the gap 163, occupying the space of the rotating cone 121, and reducing the fuel efficiency of the fuel in the first chamber 1212. Preferably, the size of the gap 163 in the first direction is 1 to 5 cm, so that the fuel in the first chamber 1212 can fall into the third chamber 1391 of the bubbling bed 139 through the gap 163.

In some embodiments, the bubbling bed 139 further has a second air inlet 1392 and a slag outlet 162. The second air inlet 1392 and the slag outlet 162 are connected to the third chamber 1391, the second air inlet 1392 is suitable for introducing a combustion aid into the third chamber 1391 so that the fuel particles in the third chamber 1391 burn in the third chamber 1391, and the slag outlet 162 is suitable for discharging slag produced by the combustion of the combustion particles in the third chamber 1391.

Specifically, the combustion-supporting agent is continuously introduced into the third chamber 1391 through the second air inlet 1392, so that the unburned fuel in the third chamber 1391 can be burned again in the third chamber 1391. The slag in the third chamber 1391 is discharged through the slag outlet 162, which not only releases the space in the third chamber 1391, but also allows the unburned fuel in the third chamber 1391 to fully contact with the combustion-supporting agent, thereby improving the carbon conversion rate.

Specifically, the cross-sectional wind speed of the bubbling bed 139 is 1 m/s to 3 m/s. The cross-sectional wind speed refers to the wind volume divided by the cross-sectional area of the bubbling bed 139 .

In some embodiments, the third chamber 1391 has a wind chamber 1395, which is located at the bottom of the third chamber 1391 and is connected to the second air inlet 1392. The second air inlet 1392 is suitable for introducing an oxidant into the wind chamber 1395. The top of the wind chamber 1395 has a hood 1396, which connects the ventilation chamber 1395 and the third chamber 1391, so that the oxidant in the wind chamber 1395 can enter the third chamber 1391 through the hood 1396.

Specifically, the wind chamber 1395 is disposed at the bottom of the third chamber 1391 , and the combustion-supporting agent that enters the third chamber 1391 through the second air inlet 1392 first enters the wind chamber 1395 , and then is discharged through the wind hood 1396 .

Specifically, there are multiple wind hoods 1396, which are arranged at intervals on the top surface of the wind chamber 1395, and the wind hoods 1396 are located in the bed layer of the third chamber 1391. The combustion-supporting agent blown out from the wind hood 1396 can blow the bed layer to flow, so that the unburned fuel can fully contact with the combustion-supporting agent, quickly heat up, and improve the carbon conversion rate.

In some embodiments, the top surface of the wind chamber 1395 is arranged at an angle, and the top surface of the wind chamber 1395 extends downward at an angle from one end (the right end of the top surface of the wind chamber 1395 as shown in FIG. 2 ) to the other end (the left end of the top surface of the wind chamber 1395 as shown in FIG. 2 ), one end of the top surface of the wind chamber 1395 is adjacent to the second air inlet 1392, and the other end of the top surface of the wind chamber 1395 is adjacent to the slag outlet 162.

Specifically, the top surface of the air chamber 1395 is arranged downwardly from right to left, so that the slag formed by the combustion of the fuel in the third chamber 1391 can be discharged from the The right end of the top surface of the wind chamber 1395 rolls down to the left end. The slag outlet 162 is located at the left end of the wind chamber 1395 and communicates with the top surface of the wind chamber 1395, so that the slag located at the left end of the top surface of the wind chamber 1395 can be easily discharged through the slag outlet 162.

In some embodiments, the number of wind hoods 1396 at the left end of the top surface of the wind chamber 1395 is greater than the number of wind hoods 1396 at the right end of the top surface of the wind chamber 1395, so that the fuel rolling from the right end of the top surface of the wind chamber 1395 to its left end can be fully burned.

In some embodiments, the bubbling bed 139 further has an observation hole 1393. The fuel particles in the third chamber 1391 are burned in the third chamber 1391 to generate a bed layer. The observation hole 1393 is used to observe the thickness of the bed layer.

Specifically, there are observation holes 1393 on the side of the bubbling bed 139, and there are 2 to 4 observation holes 1393. The multiple observation holes 1393 are arranged at intervals in the left-right direction, and the thickness of the bed layer in the third chamber 1391 is observed through the observation holes 1393. When the bed layer in the third chamber 1391 is higher than the observation holes 1393, the slag outlet 162 is opened to discharge slag.

In some embodiments, the rotating cone 121 includes a grate (not shown), there are at least two grates, at least two grates are arranged at intervals along the first direction, there is a gap (not shown) between adjacent grates, the size of the gap in the first direction is 1 cm to 2 cm, the gap is connected to the third chamber 1391, and the fuel particles in the first chamber 1212 can fall into the third chamber 1391 through the gap.

Specifically, the rotating cone 121 further includes a support ring 1217, a support arm 1218, a cone top 1219 and a grate hanging rod 1219. There are multiple support rings 1217, and the multiple support rings 1217 are arranged at intervals in the up-down direction, and the central axes of the multiple support rings 1217 are collinear, and the cross-sectional area of the support ring 1217 gradually decreases in the downward direction. The support arm 1218 is provided on the support ring 1217, and there are multiple support arms 1218, and the multiple support arms 1218 are arranged around the outer wall surface of the support ring 1217 at intervals.

There are multiple grate rods 1219, which are divided into multiple groups. The multiple groups of grate rods 1219 are arranged at intervals in the up-down direction, and the multiple groups of grate rods 1219 are alternately arranged with the multiple support rings 1217, and each group of grate rods 1219 includes at least one grate rod 1219. At least two grates are detachably mounted on the grate rods 1219 to prevent high-temperature thermal expansion during operation.

The cone top 1219 is arranged on the uppermost support ring 1217 , and the cone top 1219 is connected to the secondary combustion chamber assembly 13 .

In some embodiments, the support ring 1217 includes at least two support sub-segments (not shown) to prevent thermal expansion at high temperatures during operation.

In some embodiments, the rotating cone 121 also has a first port 1215, which is connected to the first chamber 1212 and the gap 163. The rotating cone 121 also includes crushing teeth 1394, which are arranged on the wall surface of the first port 1215 adjacent to the gap 163 and are arranged at circumferential intervals along the first port 1215. The crushing teeth 1394 are used to crush the fuel particles in the gap 163.

Specifically, the first port 1215 is located at the cone top 1219 and communicates with the first chamber 1212 and the gap 163. Crushing teeth 1394 are arranged on the wall of the first port 1215 at intervals along the circumference of the first port 1215 to crush fuel particles stuck in the gap 163 to prevent blockage.

In some embodiments, the burner further includes a casing 7 , which is arranged around the outer wall of the rotating cone 121 , is connected to the gap 163 , is detachably connected to the bubbling bed 139 , and is connected to the third chamber 1391 .

Specifically, the housing 7 is connected to the gap 163 so that the fuel falling through the gap 163 is not easy to fall outside the bubbling bed 139 and cause waste. The bubbling bed 139 is detachably connected to the housing 7, and the observation hole 1393 on the bubbling bed 139 is arranged adjacent to the housing 7.

Specifically, the third chamber 1391 is under positive pressure, and a connection method that is resistant to high temperatures and ensures airtightness is preferably used between the bubbling bed 139 and the casing 7 .

The inventors realized that the rotary kiln is a complex mechanical rotating combustion equipment, and the secondary combustion chamber (after-combustion chamber) is its important equipment component. The flame on the fire side can reach as high as 1200-1300°C. In order to ensure the surface temperature of the secondary combustion chamber, the technical measure taken in the relevant technology is to install refractory mud on the inner wall of the secondary combustion chamber, and the thickness is required to be greater than 50mm. The refractory mud is generally made of silicate material with a large density, which causes the secondary combustion chamber to bear a large amount of weight. In addition, due to the complex process of laying refractory mud and the closed on-site construction environment, the construction quality is difficult to guarantee, which will affect the combustion performance of the rotary kiln.

Based on this, referring to FIGS. 6 and 7 , an embodiment of the present disclosure provides a burner including a secondary combustion chamber assembly, wherein the secondary combustion chamber assembly includes: a combustion chamber body 131 , refractory clay 136 and a cooling assembly 137 .

The combustion chamber body 131 includes an inner shell 134 and an outer shell 133. The outer shell 133 has a fourth chamber 135. The inner shell 134 is connected to the outer shell 133 and is disposed in the fourth chamber 135. A cooling chamber 1351 is defined between the outer circumferential wall of the inner shell 134 and the inner circumferential wall of the outer shell 133. The refractory mud 136 is laid on the outer circumferential wall of the inner shell 134. The cooling assembly 137 includes at least one cooling pipe 1371. The cooling pipe 1371 is disposed on the circumferential wall of the refractory mud 136, and the cooling pipe 1371 is suitable for passing a coolant to cool the refractory mud 136.

6, the outer shell 133 is disposed in the fourth chamber 135 of the inner shell 134, and a portion of the fourth chamber 135 forms a cooling chamber 1351, and the cooling chamber 1351 is located between the outer peripheral wall of the inner shell 134 and the inner peripheral wall of the outer shell 133. The refractory mud 136 can be evenly laid on the outer peripheral wall of the inner shell 134 to prevent the temperature of the combustion chamber body 131 from being too high.

It can be understood that the cooling pipe 1371 is arranged on the outer peripheral wall of the refractory mud 136. When the coolant is passed into the cooling pipe 1371, the circumferential temperature of the inner shell 134 can be reduced.

Optionally, there are multiple cooling pipes 1371 , and the extending direction of the cooling pipes 1371 is consistent with the extending direction of the inner shell 134 (such as the up and down direction of FIG. 7 ), and the multiple cooling pipes 1371 are arranged at intervals along the circumference of the inner shell 134 .

It can be understood that the extension direction of the inner shell 134 is consistent with the extension direction of the combustion chamber body 131. Preferably, the cooling pipe 1371 can be S-shaped, that is, the overall extension direction of the cooling pipe 1371 is consistent with the extension direction of the inner shell 134. The S-shape of the cooling pipe 1371 can increase the flow path of the coolant in the cooling pipe 1371, so as to improve the heat exchange efficiency.

Optionally, the cooling pipe 1371 is spiral-shaped, and the cooling pipe 1371 is arranged around the inner shell 134 .

Specifically, as shown in Figures 6 and 7, there is one cooling pipe 1371, which is spiral in shape as a whole. The cooling pipe 1371 is adapted to the outer peripheral surface of the inner shell 134, that is, the spatial contour enclosed by the cooling pipe 1371 is similar to the outer peripheral contour of the inner shell 134, so that the cooling pipe 1371 is more closely arranged on the circumference of the refractory mud 136.

Preferably, the inner shell 134 has a first end 1341 and a second end 1342 in its extension direction, one end of the cooling pipe 1371 is adjacent to the first end 1341 of the inner shell 134, the other end of the cooling pipe 1371 is adjacent to the second end 1342 of the inner shell 134, and the first end 1341 and the second end 1342 of the cooling pipe 1371 are located on different sides of the inner shell 134 in the circumferential direction.

Specifically, as shown in Figure 7, the upper end of the inner shell 134 is the first end 1341, the lower end of the inner shell 134 is the second end 1342, the first end 1341 of the cooling pipe 1371 (that is, the end of the cooling pipe 1371 located at the bottom) is located on the right side of the inner shell 134, and the second end 1342 of the cooling pipe 1371 (that is, the end of the cooling pipe 1371 located at the top) is located on the left side of the inner shell 134.

In some other embodiments, there are multiple cooling pipes 1371, and the multiple cooling pipes 1371 are arranged at intervals along the extension direction of the inner shell 134. The inner shell 134 has a first end 1341 and a second end 1342 in its extension direction. One end of at least one cooling pipe 1371 among the multiple cooling pipes 1371 (i.e., the liquid inlet 1372 end of the cooling pipe 1371) is adjacent to the first end 1341 of the inner shell 134, and the other end of at least one cooling pipe 1371 among the multiple cooling pipes 1371 (i.e., the liquid outlet end of the cooling pipe 1371) is adjacent to the second end 1342 of the inner shell 134.

It can be understood that each cooling pipe 1371 is spiral, the general extension direction of the cooling pipe 1371 is consistent with the extension direction of the inner shell 134, and multiple cooling pipes 1371 are stacked and arranged in the extension direction of the inner shell 134 so as to adapt to the outer peripheral surface of the inner shell 134.

It should be noted that the liquid inlet 1372 ends of the multiple cooling pipes 1371 can be adjacent to the lower end of the inner shell 134, and the liquid outlet ends of the multiple cooling pipes 1371 can be adjacent to the upper end of the inner shell 134, so as to facilitate the introduction of cooling liquid into the cooling pipes 1371. The cooling liquid can be water, cooling oil, etc.

That is to say, the secondary combustion chamber assembly of the embodiment of the present disclosure can replace a portion of the refractory mud 136 with the cooling assembly 137, thereby reducing the amount of refractory mud 136 used and thereby reducing the overall weight of the combustion chamber body 131.

In addition, coolant can be introduced into the cooling pipe 1371 of the cooling assembly 137 to cool the combustion chamber body 131 .

Therefore, the overall weight of the secondary combustion chamber assembly of the embodiment of the present disclosure is small, and has the advantage of good cooling effect.

In some embodiments, the ratio of the pitch of the cooling pipe 1371 to the pipe diameter of the cooling pipe 1371 is greater than or equal to 1 and less than or equal to 2.

It can be understood that the cooling pipe 1371 is spiral, and the ratio of the pitch of the cooling pipe 1371 to the tube diameter of the cooling pipe 1371 is negatively correlated with the cooling effect of the inner shell 134, that is, the larger the ratio of the pitch of the cooling pipe 1371 to the tube diameter of the cooling pipe 1371, the denser the laying of the cooling pipe 1371, the smaller the amount of coolant entering the cooling pipe 1371, and the weaker the cooling effect on the inner shell 134.

In addition, it should be noted that the selection of the cooling pipe 1371 is related to the thickness of the refractory mud 136, that is, as the thickness of the refractory mud 136 increases, the diameter of the cooling pipe 1371 can be reduced or the pitch of the cooling pipe 1371 can be increased.

In some embodiments, the secondary combustion chamber assembly of the embodiment of the present disclosure also includes a conveying assembly (not shown in the figure), and the cooling pipe 1371 has a liquid inlet 1372 and a liquid outlet. The conveying assembly is used to be connected to the liquid inlet 1372 so as to pass the coolant into the cooling pipe 1371.

Preferably, the delivery component includes a delivery pump, which is used to be connected to the liquid inlet 1372 so as to pass the coolant into the cooling pipe 1371 through the liquid inlet 1372. The delivery pump can control the flow rate of the coolant in the cooling pipe 1371 to be greater than or equal to 1m/s and less than or equal to 10m/s.

It is understandable that the delivery pump has an outlet, and the outlet of the delivery pump can be connected to the liquid inlet 1372 through a pipeline, so that when the delivery pump is started, the coolant can be delivered to the cooling pipeline 1371. Preferably, the inlet of the delivery pump can be connected to the soft water tank of the boiler room matched with the combustion chamber body 131, so that the water in the soft water tank can be used as the coolant, so as to realize the recycling of the coolant and reduce the waste of water.

In addition, the inventors found that in the related art, since the flame temperature of the combustion chamber body 131 on the fire side can reach 1200°C-1300°C, if the coolant is water, during the cooling process, due to the high temperature, water is easily vaporized in the cooling pipe 1371, reducing the heat exchange efficiency, thereby reducing the cooling effect. Therefore, a delivery pump is used to control the flow rate of the coolant in the cooling pipe 1371 to be greater than or equal to 1m/s and less than or equal to 10m/s to prevent the vaporization of water, thereby achieving a better heat exchange effect and improving the cooling effect on the combustion chamber body 131.

In some embodiments, the secondary combustion chamber assembly of the utility model embodiment further includes a secondary air box 138 , and the secondary air box 138 is used to communicate with the inner shell 134 so as to ventilate into the inner shell 134 .

Specifically, as shown in Fig. 6, the secondary air box 138 may be connected to the inner shell 134 through a pipeline. It is understandable that when the secondary air box 138 is used to ventilate the inner shell 134, a certain cooling effect can also be achieved on the inner shell 134.

The inventors have realized that biomass materials (straw, sawdust, bagasse, rice bran, etc.) can be used as a renewable green clean fuel for power generation and heating, thereby effectively improving the living environment and quality of life. In the related art, a flap valve is often used to push biomass fuel into a burner for combustion. However, during use, the flap valve with poor sealing increases the air intake in the burner, and the air locking function is poor, resulting in the inability to maintain negative pressure in the burner for a long time, posing a safety hazard.

Based on this, as shown in FIG. 8 , the burner provided in the embodiment of the present disclosure includes a feeding device, the burner has a fuel inlet, the feeding device is connected to the fuel inlet, and the feeding device includes a feeding pipe 17 and a feeding assembly 173 .

Specifically, the feed pipe 17 has a feed channel, and the feeding assembly 173 includes a plurality of flaps 1731, and the plurality of flaps 1731 are arranged in the feed channel at intervals along the length direction of the feed pipe 17, and the flaps 1731 have an open position and a closed position relative to the feed pipe 17. In the closed position, the flap 1731 can block the feed channel, and in the open position, the flap 1731 can connect the feed channel. When there is a flap 1731 in the open position among the plurality of flaps 1731, at least one flap 1731 among the remaining flaps 1731 is in the closed position.

It should be noted that in certain working conditions, the equipment needs to work under negative pressure conditions. For example, when the burner is running, the negative pressure in the furnace can prevent the air in the furnace from expanding due to heat and squeezing the furnace wall, thereby preventing safety accidents such as burner damage or explosion. However, fuel needs to be continuously added during the operation of the burner. This feeding process will affect the stability of the negative pressure state in the furnace. The feeding device of the present invention has multiple flaps 1731 spaced apart along the length direction of the feed pipe 17. During the feeding process, the flaps 1731 corresponding to the material flow position can be opened to ensure unobstructed feeding, and the flaps 1731 at other positions can be closed to ensure the airtightness of the equipment. For example, as shown in FIG8 , the feed pipe 17 can be arranged vertically, and the flaps 1731 are arranged at intervals in the upper and lower directions along the length direction of the feed pipe 17 (in the upper and lower directions as shown in FIG8 ). At this time, the material can be controlled to fall into the equipment in a step-by-step manner according to the setting sequence of the flaps 1731. The specific process is: first, the upper flap 1731 is operated to the open position, and the next flap 1731 is operated to the closed position, and the material can fall onto the next flap 1731. Then, after the upper flap 1731 is operated to the closed position, the next flap 1731 is operated to the open position, and the material falls again. The above steps are repeated, and the material passes through multiple flaps 1731. It is understandable that, during this process, one flap 1731 is always kept in a closed position, so as to ensure the airtightness of the equipment, and as the material flows, the flaps 1731 at the corresponding positions are opened in sequence to ensure the smooth feeding.

In this way, the material can be input into the equipment, and the airtightness of the equipment can be maintained during the feeding process to prevent excessive external air from entering the equipment through the feeding channel.

Optionally, the fuel inlet corresponds to the first chamber. For example, the burner includes a second combustion chamber assembly, the second combustion chamber assembly has a combustion chamber body, the fuel inlet is arranged on the side wall of the combustion chamber body, and the feed pipe is connected to the combustion chamber body and corresponds to the fuel inlet.

According to the feeding device of the embodiment of the present disclosure, the feeding pipe has a feeding channel, and the feeding assembly includes a plurality of flaps, which are arranged in the feeding channel at intervals along the length direction of the feeding pipe, and the flaps have an open position and a closed position relative to the feeding pipe. In the closed position, the flaps can block the feeding channel, and in the open position, the flaps can connect the feeding channel. When there is a flap in the open position among the plurality of flaps, at least one flap among the remaining flaps is in the closed position. Therefore, during the feeding process, the flap corresponding to the material flow position can be opened so that the feeding is not hindered, and the flaps in the remaining positions can be closed to ensure the airtightness of the equipment. That is, the feeding device of the present disclosure can ensure the sealing of the equipment without affecting the material conveying of the equipment, thereby improving the air locking performance of the equipment and ensuring the safe operation of the equipment. At the same time, the present disclosure has a simple structure, is easy to assemble, and is convenient for promotion.

Further, as shown in Figure 8, the flap 1731 is rotatably connected to the feed pipe 17 via a rotating shaft 1735, and the rotating shaft 1735 is radially penetrated in the feed pipe 17 and the axis of the rotating shaft 1735 is orthogonal to the central axis of the feed pipe 17.

It should be noted that in the related art, the flap 1731 is usually set on the side wall of the feed pipe. However, due to the limitation of the setting method, the rotatable angle of the flap 1731 is limited (0°-180°). When conveying large materials, the anti-clogging stirring ability of the flap 1731 is poor. The rotating shaft 1735 of the present invention is horizontally penetrated into the feed pipe 17, and the rotation angle of the flap 1731 connected to the rotating shaft 1735 is not restricted (0°-360°), and the anti-clogging stirring ability is strong.

Further, as shown in Figure 8, the flap 1731 is an arc-shaped plate, which includes a first arc plate 1732 and a second arc plate 1733. The protruding direction of the first arc plate 1732 is opposite to the protruding direction of the second arc plate 1733, and the first arc plate 1732 and the second arc plate 1733 are both connected to the rotating shaft 1735 and are symmetrical about the center of the rotating shaft 1735.

It can be understood that the arc plate increases the contact area between the material and the flap 1731 and forms a groove for temporarily storing the material. Therefore, the symmetrically arranged first arc plate 1732 and the second arc plate 1733 can push the material to the next flap 1731 in turn, thereby accelerating the feeding rate.

Further, as shown in FIG. 8 , the feed pipe 17 includes a plurality of pipe segments 171 that are detachably connected in sequence, and a plurality of flaps 1731 are disposed in the plurality of pipe segments 171 in a one-to-one correspondence.

In other words, the feed pipe 17 can be assembled from a plurality of detachable pipe sections 171, and each pipe section 171 is provided with a flap 1731, which not only facilitates the installation of the feed assembly on the equipment, but also allows the pipe section 171 to be quickly disassembled for maintenance when the flap 1731 does not operate smoothly.

Further, as shown in Figure 8, the outer wall of the feed pipe 17 is provided with a plurality of reinforcing plates 172 arranged at intervals along the length direction of the feed pipe 17, and the plurality of reinforcing plates 172 correspond one-to-one to the plurality of flaps 1731, and in the closed position, corresponding reinforcing plates 172 are provided on the outer wall of the contact position between the flap 1731 and the feed pipe 17.

It should be noted that during the rotation of the flap 1731, materials are often clamped between the flap 1731 and the feed pipe 17, thereby squeezing the tube wall of the feed pipe 17, especially in the closed position. At this time, the distance between the flap 1731 and the feed pipe 17 is shortest, and the squeezing force on the tube wall of the feed pipe 17 is increased. At this time, the reinforcing plate 172 can prevent the tube wall from deforming and improve the durability of the feeding device.

Furthermore, as shown in FIG. 8 , the rotation phase difference between adjacent flaps 1731 is 90°, so that there can be a larger material flow space between the flaps 1731 , thereby avoiding situations such as material jamming that affect the feeding efficiency.

Further, as shown in FIG. 8 , there is a spacing distance L between the edge of the flap 1731 and the inner wall of the feed tube 17 , which satisfies: 0.2 mm ≤ L ≤ 0.4 mm.

It is understandable that, in the closed position, the side of the flange facing the feed pipe 17 needs to leave a certain distance from the inner wall of the feed pipe 17, so as to ensure that the flap 1731 is unobstructed during the opening and closing process and avoid wear.

Furthermore, as shown in FIG. 8 , a cutting head 1734 is provided on the side of the flap 1731 parallel to the axis of the rotating shaft 1735 .

It should be noted that when the feeding device transports certain biomass fuels, due to the different sizes of biomass fuels, large-sized biomass fuels are prone to cause unexpected situations such as jamming. Therefore, a cutting head 1734 can be set on the flap 1731 to crush large-sized biomass fuels, so that the fuel can be easier to input into the burner furnace, thereby improving combustion efficiency.

It is understandable that the cutting direction of the cutting head 1734 should be consistent with the rotation direction of the rotating shaft 1735, so that when the rotating shaft 1735 drives the flap 1731 to rotate, the cutting head 1734 contacts the conveyed material and cuts it.

Furthermore, as shown in FIG. 8 , the cutting head 1734 is a bidirectional cutting head.

It can be understood that the cutting head 1734 has a variety of settings, which can be unidirectional or bidirectional. The bidirectional cutting head 1734 allows the flap 1731 to rotate both counterclockwise and clockwise. When material jams occur in the feed pipe 17, the flap 1731 can be controlled to rotate in the opposite direction, thereby quickly clearing the feed pipe 17.

The inventors have realized that the ignition method of the rotary pile burner can be to directly ignite the solid fuel inside the burner by using gas or oil, or to first heat the burner and the bed material inside the burner, and then put the solid fuel in for combustion. In these two ignition methods, the amount of ignition fuel required for the fuel is large, and the production cost is high. In addition, the shape and size of some solid fuel added to the rotary pile burner are not conducive to the ignition and combustion of the solid fuel.

Based on this, as shown in FIG. 9 , an embodiment of the present disclosure provides a burner including a combustion-supporting device for tilting and rotating a stack, the combustion-supporting device including: a first spherical body 18 , a first counterweight 184 and a first crushing member 185 .

The first spherical body 18 has a fifth chamber 182, and the fifth chamber 182 is used to place the heat storage object 181. The first spherical body 18 includes a counterweight 183, and the counterweight 183 of the first spherical body is located at the bottom of the first spherical body 18. The first counterweight 184 is arranged in the fifth chamber 182 and located at the counterweight 183 of the first spherical body, so that the center of gravity of the combustion-supporting device is located below the center of the combustion-supporting device. The first crushing piece 185 is arranged on the outer peripheral surface of the first spherical body 18, and the first crushing piece 185 has a tip portion, and the tip portion is arranged at the first crushing piece. The fragments 185 are away from one side of the first spherical body 18 .

Specifically, as shown in Figure 9, the first spherical body 18 has an outer shell, and the outer shell of the first spherical body 18 surrounds a fifth chamber 182. The first counterweight 184 is arranged in the fifth chamber 182, and the first counterweight 184 can move relative to the first spherical body 18 in the fifth chamber 182, so that after the combustion-supporting device enters the burner, it can swing in a tumbler-like manner, thereby achieving the squeezing of the solid fuel in the burner.

It can be understood that the first crushing member 185 is arranged on the outer peripheral surface of the first spherical body 18. When the combustion-supporting device is in the swinging process, the tip of the first crushing member 185 can be used to further crush the solid fuel, which is more conducive to the ignition of the solid fuel.

It should be noted that before the combustion-supporting device enters the burner, the heat storage material 181 is filled into the fifth chamber 182 and the combustion-supporting device is heated. This allows the combustion-supporting device to preheat the ignition fuel in the burner with its own heat after entering the burner, thereby facilitating the ignition of the fuel.

That is to say, the combustion-supporting device for the tilted rotating pile of the embodiment of the present disclosure can be heated first, and then the heated combustion-supporting device can be placed in the rotating pile to preheat the ignition fuel, thereby facilitating the ignition of the solid fuel and reducing the amount of ignition fuel used.

In addition, the swing of the combustion-supporting device can be used to squeeze and crush the solid fuel, making it easier for the solid fuel to be ignited.

Therefore, the combustion-supporting device for the tilted rotating reactor according to the embodiment of the present disclosure has the advantages of being beneficial to the combustion of solid fuel and reducing the amount of ignition fuel.

It should be noted that the first spherical body 18 is a spheroidal body. Optionally, the first spherical body 18 is an ellipsoidal body 1, or the first spherical body 18 is an egg-shaped body.

It can be understood that, as shown in FIG. 9 , the bottom of the first spherical body 18 is a smooth arc, so that the combustion-supporting device can achieve a tumbler-like swinging function.

In some embodiments, the first counterweight 184 is a sphere, and the first counterweight 184 is made of stainless steel. It is understandable that the first counterweight 184 made of stainless steel has a high density, so when the volume of the first counterweight 184 is adapted to the counterweight portion 183 of the first spherical body 18, the center of gravity of the first spherical body 18 can be located at the bottom of the first spherical body 18, so as to better achieve the swinging action.

In some embodiments, there are a plurality of first crushing members 185 , and the plurality of first crushing members 185 are spaced apart along the circumference of the first spherical body 18 .

Specifically, as shown in Fig. 9, the first crushing member 185 is connected to the outer shell of the first spherical body 18 and extends to the outside of the first spherical body 18. The tip of the first crushing member 185 can be in a needle tip shape or a blade shape. That is, when the tip is in a blade shape, the tip has a certain width.

Preferably, the multiple first crushing pieces 185 are divided into multiple first crushing piece groups, and the multiple first crushing piece groups are arranged at intervals along the height direction of the first spherical body 18 (such as the up and down direction in Figure 9), and each first crushing piece group includes at least two first crushing pieces 185 arranged along the circumference of the first spherical body 18.

That is to say, the increase in the number of first crushing pieces 185 makes it easier for the first spherical body 18 to contact the solid fuel during the swinging process, thereby improving the crushing efficiency of the solid fuel. Therefore, a multi-layer first crushing piece group is arranged on the outer wall surface of the outer shell of the first spherical body 18 to improve the crushing efficiency of the solid fuel.

In other embodiments, the first crushing member 185 is annular and is sleeved on the outer circumference of the first spherical body 18. It can be understood that the first crushing member 185 is disposed around the first spherical body 18 to crush the solid fuel.

In some embodiments, the combustion support device for the tilted rotating pile of the embodiment of the present disclosure also includes a first limit member 186, which is arranged in the fifth chamber 182 and connected to the peripheral wall of the fifth chamber 182, and the first limit member 186 is arranged below the top of the counterweight portion 183 of the first spherical body to prevent the first counterweight member 184 from moving from the counterweight portion 183 of the first spherical body to the top of the counterweight portion 183 of the first spherical body.

Specifically, as shown in Fig. 9, the first stopper 186 is connected to the inner wall of the shell of the first spherical body 18 and extends toward the inner side of the first spherical body 18. It can be understood that the first stopper 186 is used to block the first counterweight 184 from moving from bottom to top, that is, the first stopper 186 can prevent the first counterweight 184 from moving from the bottom of the first spherical body 18 to the top of the first spherical body 18, thereby preventing the center of gravity of the combustion-supporting device from moving from the bottom to the top of the first spherical body 18.

Preferably, there are multiple first limiting members 186 , and the multiple first limiting members 186 are arranged at intervals along the circumference of the first spherical body 18 .

It can be understood that multiple first limit members 186 can be arranged around the first counterweight member 184, that is, multiple first limit members 186 form a gap away from one end of the first spherical body 18, and the top of the first counterweight member 184 fits in the gap to better limit the movement of the first counterweight member 184.

In some other embodiments, the first limit member 186 is annular, the outer peripheral surface of the first limit member 186 is connected to the peripheral wall surface of the fifth chamber 182, the inner peripheral surface of the first limit member 186 forms a connecting hole, the top of the first counterweight member 184 passes through the connecting hole, and there is a gap between the inner peripheral surface of the first limit member 186 and the outer peripheral surface of the first counterweight member 184.

It can be understood that the connecting hole is arranged at the center position of the first limiting member 186, the top of the first counterweight member 184 passes through the connecting hole, and there is a gap between the inner circumference of the first limiting member 186 and the outer circumference of the first counterweight member 184, which can facilitate the movement of the first counterweight member 184 and also prevent the first limiting member 186 from moving from the counterweight portion 183 of the first spherical body to the top of the first spherical body 18.

The inventors have realized that in a rotary pile burner, after solid fuel is burned, coke blocks are easily generated in the burner, and the presence of coke blocks is likely to affect the subsequent use of the burner and will be detrimental to the subsequent ignition of fuel. In addition, serious accumulation of coke blocks in the burner is likely to adhere to the inner wall of the burner, which will cause the overall performance of the burner to decline over time and increase maintenance costs.

Based on this, as shown in FIG. 10 and FIG. 11 , the burner provided in the embodiment of the present disclosure includes a decoking device for the tilting rotating stack, and the decoking device includes: a second spherical body 19 and a second counterweight 194 .

The second spherical body 19 has a sixth chamber 192, and the sixth chamber 192 is used to place the descorching agent 191. The second spherical body 19 includes a counterweight 183 and a swinging portion 193. The counterweight 183 and the swinging portion 193 of the second spherical body are arranged relatively along the height direction of the second spherical body 19 (the up and down direction in FIG. 10). Specifically, as shown in FIG. 10, the second spherical body 19 has a base 197, which surrounds The sixth chamber 192 is used for placing the decoking agent 191, and the swinging portion 193 is located above the counterweight portion 183 of the second spherical body.

The second spherical body 19 also has a feed hole 198 and a discharge hole 199. The feed hole is arranged in the counterweight portion 183 of the second spherical body and is connected to the sixth chamber 192, so that the decoking agent 191 is placed in the sixth chamber 192 through the feed hole. The discharge hole 199 is arranged in the swinging portion 193 and is connected to the sixth chamber 192. The aperture of the discharge hole 199 is adapted to the size of the decoking agent 191, and the radial direction of the discharge hole 199 forms an angle with the thickness direction of the wall of the second spherical body 19.

It can be understood that the discharge hole 199 has a first end 1991 and a second end 1992, and the first end 1991 is the end of the discharge hole 199 adjacent to the sixth chamber 192, that is, there is an angle α between the radial direction of a discharge hole 199 and the direction of the first end 1991 of the discharge hole 199 pointing to the outer wall surface of the base 197 of the second spherical body 19.

The second counterweight 194 is disposed in the sixth chamber 192 and is located at the counterweight portion 183 of the second spherical body. The center of gravity of the coke cleaning device is located below the center of the coke cleaning device in the height direction of the second spherical body 19. The second counterweight 194 is suitable for blocking the feed hole 198. It can be understood that the second counterweight 194 is disposed in the sixth chamber 192, and the second counterweight 194 can move relative to the second spherical body 19 in the sixth chamber 192, so that after the coke cleaning device enters the burner, it can swing in a tumbler-like manner, thereby squeezing the coke blocks in the burner.

That is to say, the decoking device for the tilted rotating pile of the embodiment of the present disclosure can swing easily due to its low center of gravity, so that the decoking agent 191 in the second spherical body 19 can be dispersed outside the second spherical body 19 for removing coke blocks in the burner.

In addition, the coke blocks can be squeezed and crushed by the swing of the coke clearing device, thereby increasing the contact between the coke blocks and the decoking agent 191 and further improving the coke clearing effect.

Therefore, the decoking device for the tilted rotating pile according to the embodiment of the present disclosure has the advantage of good decoking effect.

It should be noted that the second spherical body 19 is a spherical body, optionally, the second spherical body 19 is an elliptical second spherical body 19, or the second spherical body 19 is an egg-shaped body. It can be understood that, as shown in Figure 10, the bottom of the second spherical body 19 is a smooth arc, so that the combustion-supporting device can achieve a tumbler-like swinging function.

As shown in Fig. 11, the angle α formed by the radial direction of the discharge hole 199 and the thickness direction of the wall of the second spherical body 19 is greater than or equal to 0 degrees and less than 90 degrees. Preferably, the angle α formed by the radial direction of the discharge hole 199 and the thickness direction of the wall of the second spherical body 19 is greater than or equal to 30 degrees and less than or equal to 60 degrees.

That is to say, the angle between the radial direction of the discharge hole 199 and the thickness direction of the wall of the second spherical body 19 can make the radial direction of the discharge hole 199 approach the up and down direction during the swinging process of the second spherical body 19, thereby facilitating the discharge of the decoking agent 191 in the second spherical body 19 from the discharge hole 199.

In some embodiments, there are multiple discharge holes 199, and the multiple discharge holes 199 are arranged at intervals along the circumference of the second spherical body 19. Preferably, as shown in FIG10, the multiple discharge holes 199 are divided into multiple discharge hole 199 groups, and the multiple discharge hole 199 groups are arranged at intervals along the up and down direction, wherein each discharge hole 199 group includes at least two discharge holes 199 arranged along the axial direction of the second spherical body 19.

That is to say, the greater the number of discharge holes 199 , the more decoking agent 191 can be discharged from the second spherical body 19 during the swinging process, thereby improving the decoking efficiency.

In some embodiments, the decoking device for the inclined rotating pile of the present embodiment also includes a plurality of second crushing members 195, which are arranged at intervals along the circumference of the second spherical body 19, and the second crushing members 195 are arranged on the outer circumferential surface of the second spherical body 19. The second crushing members 195 have a pointed end, and the pointed end is arranged on the side of the second crushing member 195 away from the second spherical body 19.

Specifically, as shown in Fig. 10, the second crushing member 195 is connected to the base 197 of the second spherical body 19 and extends to the outside of the second spherical body 19. The tip of the second crushing member 195 can be in a needle tip shape or a blade shape. That is, when the tip is in a blade shape, the tip has a certain width.

Preferably, the plurality of second crushing members 195 are divided into a plurality of second crushing member groups, which are arranged at intervals in the up-down direction, and each second crushing member group includes at least two second crushing members 195 arranged circumferentially of the second spherical body 19. In order to make it easier for the second spherical body 19 to contact the coke block during the swinging process, the crushing efficiency of the coke block can be improved. Therefore, a plurality of layers of second crushing member groups are arranged on the outer wall surface of the base 197 of the second spherical body 19 to improve the crushing efficiency of the coke block.

In other embodiments, the second crushing member 195 is annular and is sleeved on the outer circumference of the second spherical body 19. It can be understood that the second crushing member 195 is disposed around the second spherical body 19 to crush the solid fuel.

In some embodiments, the decoking device for the tilted rotating pile of the present embodiment also includes a second limit member 196, which is disposed in the sixth chamber 192 and connected to the peripheral wall of the sixth chamber 192, and the second limit member 196 is disposed below the top of the counterweight portion 183 of the second spherical body to prevent the second counterweight 194 from moving from the counterweight portion 183 of the second spherical body to the swinging portion 193.

Specifically, as shown in Fig. 10, the second stopper 196 is connected to the inner wall of the base 197 of the second spherical body 19 and extends toward the inner side of the second spherical body 19. It can be understood that the second stopper 196 is used to block the second counterweight 194 from moving from bottom to top, that is, the second stopper 196 can prevent the second counterweight 194 from moving from the bottom of the second spherical body 19 to the top of the second spherical body 19, thereby preventing the center of gravity of the combustion-supporting device from moving from the bottom to the top of the second spherical body 19.

Preferably, there are multiple second limiting members 196 , and the multiple second limiting members 196 are arranged at intervals along the circumference of the second spherical body 19 .

It can be understood that multiple second limit members 196 can be arranged around the second counterweight member 194, that is, multiple second limit members 196 form a gap away from one end of the second spherical body 19, and the top of the second counterweight member 194 fits in the gap to better limit the movement of the second counterweight member 194 and facilitate the addition of the decoking agent 191 into the sixth chamber 192 from the feed hole 198.

That is to say, during the swinging process of the second spherical body 19 , the second counterweight 194 can always block the feed hole 198 to prevent the decoking agent 191 in the sixth chamber 192 from being discharged through the feed hole 198 .

In some embodiments, the second stopper 196 is annular, the outer circumference of the second stopper 196 is connected to the circumferential wall of the sixth chamber 192, the inner circumference of the second stopper 196 forms a connecting hole, the top of the second counterweight 194 passes through the connecting hole, and the inner circumference of the second stopper 196 is connected to the circumferential wall of the sixth chamber 192. The outer peripheral surfaces of the second weight members 194 have gaps therebetween.

It can be understood that the connecting hole is arranged at the center position of the second limit member 196, the top of the second counterweight member 194 passes through the connecting hole, and there is a gap between the inner circumference of the second limit member 196 and the outer circumference of the second counterweight member 194, which can facilitate the movement of the second counterweight member 194 and also prevent the second limit member 196 from moving from the counterweight portion 183 of the second spherical body to the top of the second spherical body 19.

The inventors have realized that primary air is usually introduced into the burner of a rotary boiler to supply combustion air to the boiler to ensure that the fuel in the rotating cone can burn normally. In the related art, in order to improve the efficiency of fuel combustion, the primary air inlet pipe is usually installed on the cone wall of the rotating cone so that the introduced primary air can fully contact the fuel in the rotating cone. However, this also causes the first air outlet of the air inlet pipe to be easily blocked by the fuel, reducing the air intake of the primary air and having poor applicability.

Based on this, as shown in FIGS. 12-16 , the burner for use in a rotary boiler provided in the embodiment of the present disclosure includes a casing 11 , a rotating cone 121 and an air distribution assembly 124 .

Specifically, the rotating cone 121 is rotatably disposed in the casing 11 and defines a first chamber, and the central axis of the rotating cone 121 is inclined upward in a direction away from the horizontal plane, the rotating cone 121 has an air inlet cavity, and the air distribution assembly 124 includes a plurality of exhaust ribs 1241 arranged along the circumference of the rotating cone 121, the exhaust ribs 1241 have a plurality of exhaust cavities 1243 arranged along the length direction thereof, the exhaust cavity 1243 has a first air inlet hole 1244 and a first air outlet hole 1245, the air inlet cavity is connected with the exhaust cavity 1243 through the first air inlet hole 1244, the first chamber is connected with the exhaust cavity 1243 through the first air outlet hole 1245, and an anti-blocking block 1242 is provided in the exhaust cavity 1243, the rotation of the rotating cone 121 can drive the anti-blocking block 1242 to move in the exhaust cavity 1243, and the movement of the anti-blocking block 1242 can open or close the first air outlet hole 1245.

It can be understood that the air intake chamber can be arranged in the cone wall of the rotating cone 121. After the primary air is introduced into the air intake chamber, the primary air can enter the exhaust chamber 1243 through the first air intake hole 1244, and then enter the first chamber through the first air outlet hole 1245. Therefore, the primary air combined with the rotation of the rotating cone 121 can put the fuel in a fluidized combustion state, thereby improving the combustion efficiency of the burner.

It can be understood that, in the burner of the present disclosure, the rotating cone 121 is arranged in an upwardly inclined manner in the casing 11 (in the up and down direction as shown in FIG. 12 ). When the rotating cone 121 rotates, the exhaust fins 1241 will also rotate accordingly. For example, the exhaust fins 1241 at the lowest point in FIG. 14 will rotate to the highest point. At this time, the relative positions of the two sides of the exhaust fins 1241 will change. The side away from the central axis of the rotating cone 121 will change from the lowest point of the exhaust fins 1241 to the highest point, and the side close to the central axis of the rotating cone 121 will change from the exhaust fins 1241 to the highest point. The highest point of 241 is converted to the lowest point, and correspondingly, the lowest point of the exhaust chamber 1243 will also change continuously. Under the action of gravity, the anti-blocking block 1242 is always located at the lowest point of the exhaust chamber 1243. Therefore, the rotation of the exhaust rib 1241 will drive the anti-blocking block 1242 to move back and forth in the exhaust chamber 1243. The reciprocating anti-blocking block 1242 can disturb the ash blocking the first air outlet 1245, thereby achieving periodic cleaning of the first air outlet 1245, ensuring that the primary air can be smoothly discharged from the air inlet chamber into the first chamber, thereby improving the applicability of the burner.

It should be noted that in the burner disclosed in the present invention, since the rotating cone 121 is inclined, the fuel in the rotating cone 121 always covers the exhaust fins 1241 at the lower position. Therefore, as shown in Figure 14, the first air outlet 1245 can be set on the side close to the exhaust fin 1241 away from the central axis of the rotating cone 121. When the exhaust fin 1241 rotates to a lower position, the anti-blocking block 1242 also falls to the side of the exhaust fin 1241 away from the central axis of the rotating cone 121. At this time, the anti-blocking block 1242 can block the first air outlet 1245 to prevent the fuel covered on the exhaust fin 1241 from falling into the exhaust chamber 1243 from the first air outlet 1245, thereby affecting the normal operation of the anti-blocking block 1242. When the exhaust fin 1241 rotates to a higher position, the anti-blocking block 1242 falls to the other side. At this time, the first air outlet 1245 is opened, and the air inlet chamber can input primary air from the exhaust chamber 1243 to the first chamber without obstacles.

According to the burner of the embodiment of the present disclosure, a rotating cone is rotatably disposed in a casing and defines a first chamber, and the central axis of the rotating cone is inclined upward in a direction away from the horizontal plane, the rotating cone has an air inlet cavity, and the air distribution assembly includes a plurality of exhaust fins arranged along the circumference of the rotating cone, the exhaust fins have a plurality of exhaust cavities arranged along the length direction thereof, the exhaust cavity has a first air inlet hole and a first air outlet hole, the air inlet cavity is connected with the exhaust cavity through the first air inlet hole, the first cavity is connected with the exhaust cavity through the first air outlet hole, and an anti-blocking block is provided in the exhaust cavity, the rotation of the rotating cone can drive the anti-blocking block to move in the exhaust cavity, and the movement of the anti-blocking block can open or close the first air outlet hole, thereby, in the burner of the present disclosure, after primary air is introduced into the air inlet cavity, the primary air can enter through the first air inlet hole The air in the first chamber is blown away by the airflow from the inlet port, and the air in the second chamber is blown away by the airflow from the inlet port.

It is understandable that the gravity of the anti-blocking block 1242 itself must be greater than the centrifugal force exerted on the anti-blocking block 1242 during its rotation, thereby preventing the anti-blocking block 1242 from always being located on the side of the exhaust rib 1241 away from the central axis of the rotating cone 121 under the action of the centrifugal force, thereby ensuring that the anti-blocking block 1242 can move back and forth with the rotation of the rotating cone 121.

Further, as shown in FIG. 12 and FIG. 14 , the exhaust fins 1241 extend in a direction close to the central axis, and the exhaust fins 1241 are inclined toward the rotation direction of the rotating cone 121 .

It should be noted that as the rotation speed of the rotating cone 121 increases, the fuel in the rotating cone 121 will successively present six motion states of sliding, collapsing, rolling, pouring, throwing, and centrifugal movement. In the rolling state, the fuel can maintain a fluidized combustion state and the rotation speed of the rotating cone 121 is relatively low at this time, which can not only improve the combustion efficiency but also has a certain economy. In the burner disclosed in the present invention, a plurality of exhaust fins 1241 are inclined in the rotating cone 121, and the inclination direction is consistent with the rotation direction of the rotating cone 121. Therefore, when the rotating cone 121 rotates, the exhaust fins 1241 can also provide a stirring effect on the fuel in the rotating cone 121, so that the fuel in the rotating cone 121 can quickly enter the rolling state at a low rotation speed of the rotating cone 121, thereby further improving the economy of the burner.

It is understandable that the inclination angle of the exhaust fin 1241 should be smaller than the sliding friction angle of the fuel. Thus, the exhaust fin 1241 can quickly roll the fuel, while also preventing the rolling fuel from causing excessive impact on the exhaust fin 1241, thereby improving the durability of the exhaust fin 1241.

Further, as shown in FIG. 12 and FIG. 13, the rotating cone 121 includes a plurality of gas delivery pipes 123 arranged along its circumference, the gas delivery pipe 123 has a plurality of gas delivery holes arranged along its length direction, the gas delivery holes are connected to the first gas inlet hole 1244, and the rotating cone 121 also includes a plurality of gas delivery pipes 123 arranged along its center direction. Hoop plates (not shown) are arranged at intervals in the extending direction of the axis, and surround the outer circumferences of the plurality of gas delivery pipes 123 .

In other words, the air pipe 123 cooperates with the hoop plate to form a mesh frame-shaped cone wall of the rotating cone 121. At this time, the flow channel of the air pipe 123 can be used as an air inlet cavity to introduce primary air into the first chamber, and the hoop plate connects multiple air pipes 123 in sequence in the form of a ring plate, thereby improving the structural strength of the rotating cone 121 and ensuring the durability of the rotating cone 121.

It can be understood that the circumferentially arranged air pipes 123 optimize the primary air distribution, allowing the primary air to act evenly on the fuel combustion, ensuring full combustion of the fuel.

Preferably, a grille can be provided in the mesh frame formed by the gas pipe 123 and the hoop plate, thereby preventing unburned garbage from falling from the mesh frame and ensuring that the fuel is fully burned, while the residue generated by the fuel combustion can fall from the grille.

Furthermore, as shown in FIG. 12 , the inclined combustion cone further includes an air distribution component 14 , and the air distribution component 14 is connected to the plurality of air pipes 123 to supply air to the air pipes 123 .

It is understandable that the air distribution assembly 14 can simultaneously introduce primary air into multiple air supply pipes 123, thereby ensuring the uniformity of primary air supply.

Further, as shown in FIG. 12 , the air distribution assembly 14 includes an air distribution box 141 , which is rotatably disposed on the housing 11 via a bearing 157 , and the air supply pipe 123 is in communication with the air distribution box 141 .

It can be understood that the air distribution box 141 is connected to the combustion cone through the air supply pipe 123, so that the air distribution box 141 and the rotating cone 121 can rotate synchronously to ensure sufficient supply of primary air.

Further, as shown in Figure 12, the air distribution component 14 also includes an air distribution plate 151 and a plurality of air intake pipes 153 passed through the air distribution plate 151, a plurality of first docking holes are provided on the inner plate of the air distribution box 141 facing the rotating cone 121, a plurality of air supply pipes 123 are correspondingly passed through the plurality of first docking holes at one end facing the air distribution box 141, a plurality of second docking holes opposite to the first docking holes are provided on the outer plate of the air distribution box 141 away from the rotating cone 121, the air distribution plate 151 is pressed against the outer plate of the air distribution box 141 by an elastic member, and the plurality of air intake pipes 153 are opposite to the plurality of second docking holes.

In other words, on the side of the air distribution box facing the rotating cone 121, the air distribution box forms an integrated structure with the rotating cone 121 through the air supply pipe 123 passing through the first docking hole, and the air distribution box rotates together with the rotating cone 121, and on the other side of the air distribution box away from the rotating cone 121, the elastic member presses the air distribution plate 151 against the air distribution box, thereby, the air inlet pipe 153 and the air distribution box are rotatably sealed and connected, that is, the flow channel in the air inlet pipe 153 is intermittently connected with the second docking hole, thereby minimizing the loss of primary air and improving the utilization rate of primary air.

Furthermore, as shown in Figure 12, the inclined combustion cone also includes a secondary combustion chamber assembly 13, which is penetrated through the casing 11 and has a second chamber connected to the first chamber. The portion of the secondary combustion chamber assembly 13 located outside the casing 11 is provided with a fuel inlet 1313 connected to the second chamber.

In other words, the fuel can fall from the fuel inlet 1313 through the second chamber into the rotating cone 121, and the smoke generated by the combustion of the fuel can be discharged from the second chamber. In the second chamber, the soot mixed in the smoke can continue to undergo secondary combustion and decomposition under high temperature conditions, thereby purifying the discharged smoke and improving the environmental friendliness of the burner.

Furthermore, as shown in FIG. 12 , a first air inlet 1317 communicating with the second chamber is provided at one end of the secondary combustion chamber assembly 13 away from the casing 11 .

It can be understood that secondary air can be input into the second chamber through the first air inlet 1317. Under the action of the secondary air, the flue gas generated by the combustion of the fuel forms a vortex gas, which increases the residence time of the flue gas in the secondary combustion chamber assembly 13, thereby ensuring that the ash in the flue gas can be fully decomposed by high temperature.

Furthermore, as shown in FIG. 12 , the cross-sectional area of the second chamber gradually decreases in a direction away from the housing 11 .

It can be understood that the conical second chamber can create a throttling and speed-increasing effect on the combustion flue gas, thereby improving the mixing effect of the secondary air and the flue gas.

Furthermore, as shown in Figure 12, the inclined combustion cone also includes a slag discharge assembly 53, the slag discharge assembly 53 includes a screw conveying shaft 161 and a driving member, the casing 11 has a collecting chamber for installing the screw conveying shaft 161, the collecting chamber is connected to the first chamber, and the collecting chamber has a slag discharge port 162, the driving member can drive the screw conveying shaft 161 to rotate, and the rotation of the screw conveying shaft 161 can transport the ash discharged from the first chamber to the slag discharge port 162 for discharge.

It can be understood that the collection chamber can be arranged below the rotating cone 121. Thus, during the process of incinerating garbage, the ash produced by the burning of garbage in the first chamber will fall from the rotating cone 121 into the collection chamber and be discharged, thereby avoiding excessive ash accumulation in the casing 11 and improving the combustion efficiency of the burner.

The inventors realized that in the burner of a rotary furnace head, primary air is usually introduced to act on the combustion cone in order to ensure complete combustion of the fuel. However, in the related art, while the combustion cone is rotating, the tightness of the assembly between the air supply device and the combustion cone cannot be ensured, resulting in a large amount of primary air being lost, thereby reducing the utilization rate of the primary air.

Based on this, as shown in FIG. 17 and FIG. 18 , the burner provided in the embodiment of the present disclosure includes an air supply device, and the air supply device includes: an air distribution component 14 , an air supply component 15 and an adjustment member 155 .

Specifically, the burner has a casing 11, which is provided with an assembly hole. The air distribution component 14 includes an air distribution box 141 and a plurality of air outlet pipes 142. The air distribution box 141 is rotatably mounted at the assembly hole and is partially located in the casing 11. The side of the air distribution box 141 facing the inside of the casing 11 has a plurality of mounting holes arranged at intervals along its circumference. The side of the air distribution box 141 located outside the casing 11 has an opening opposite to the mounting holes. The plurality of air outlet pipes 142 are correspondingly penetrated in the plurality of mounting holes and one end thereof extends into the casing 11, and the other end is matched in the air distribution box 141. The air supply component 15 includes an air distribution plate 151 and a wind box 152. The air distribution plate 151 is rotatably mounted at the opening, and the air distribution plate 151 has a plurality of air distribution holes 1511 arranged at intervals along its circumference. The plurality of air distribution holes 1511 are connected to the plurality of air outlet pipes 142. The air pipe 142 is opposite to the air box 152, and the bellows 152 is located on the side of the air distribution box 141 away from the casing 11, and the bellows 152 has a plurality of air inlet pipes 153 connected with the air distribution holes 1511. A clamping piece 154 is provided between the bellows 152 and the air distribution disk 151, and one end of the clamping piece 154 stops against the air distribution disk 151, and the other end stops against the bellows 152; an adjusting piece 155, the adjusting piece 155 includes an adjusting rod 1551 and a third limiting piece 1552, the adjusting rod 1551 passes through the bellows 152 and the air distribution disk 151 in sequence and is connected to the air distribution box 141, the third limiting piece 1552 is provided on the adjusting rod 1551 and stops against the side of the bellows 152 away from the air distribution disk 151, and the third limiting piece 1552 is movable along the length direction of the adjusting rod 1551 and can be self-locked on the adjusting rod 1551 after the movement is completed.

It should be noted that in the rotary furnace burner, the rotation of the combustion cone and the primary air supplied to the fuel by the air supply device can make the fuel in a fluidized combustion state, so that the fuel can be fully burned. In order to ensure the safety of equipment operation, the air supply device is usually fixed and cannot be The primary air is not fully effective in the combustion of the fuel, which affects the combustion efficiency. In the air supply device disclosed in the present invention, the air supply component 15 is provided on the outside of the casing 11 as a non-rotating part, and the air distribution component 14 is rotatably matched with the inside of the casing 11 as a rotating part. The two are arranged on the same adjusting rod 1551 to maintain coaxiality. The primary air generated by the air supply component 15 enters the burner casing 11 through the distribution of the air distribution component 14. The specific primary air flow process is as follows: the primary air is introduced by the bellows 152, passes through the air distribution hole 1511 and the opening through the air inlet pipe, and flows into the air distribution box 141 for temporary storage. In this process, the air distribution disc 151 is always close to the air distribution box 141 under the action of the clamping member 154, ensuring that the air supply component 15 is not Due to the rotation of the air distribution component 14, the air distribution hole 1511 is always in a connected state with the opening of the air distribution box 141. When the air distribution hole 1511 rotates to a position relative to the outlet pipe 142, the primary air in the air distribution box 141 passes through the mounting hole and flows into the casing 11 from the outlet pipe 142. Therefore, the air supply component 15 of the present invention can pass the primary air into the casing 11 under the condition that the air distribution component 14 rotates, and in this process, the air supply component 15 and the air distribution component 14 always maintain good sealing, and the primary air circulates without loss. Compared with the traditional technology, the present invention greatly reduces the leakage of primary air and improves the combustion efficiency. At the same time, the present invention can guide the primary air to all directions of the burner through the circumferentially distributed air outlet pipes, so that the primary air can fully act on the fuel combustion, thereby improving the utilization rate of the primary air.

It is understandable that when the burner is operated for the first time or after the burner has been operated for a long time, the clamping piece 154 cannot make the air distribution plate 151 close to the air distribution box 141, and a large amount of primary air leaks, or when the air distribution component 14 is too tightly connected to the air supply component 15, the air distribution plate 151 and the air distribution box 141 wear too quickly. At this time, the position of the third limiter 1552 can be adjusted by adjusting the rod 1551 to adjust the tightness of the clamping piece 154. For example, when there is a leakage in the primary air, the third limiter 1552 can be controlled by adjusting the rod 1551 to move toward a position close to the air distribution box 141. At this time, , the third limit member 1552 drives the bellows 152 to approach the air distribution box 141, thereby increasing the pressure exerted by the clamping member 154 on the air distribution disk 151, and the air distribution disk 151 is closer to the air distribution box 141. When the primary air leakage meets the operating requirements and the rotation between the air distribution disk 151 and the air distribution box 141 is not stagnant, stop adjusting the third limit member 1552, and the third limit member 1552 is fixed at this position. When the air distribution disk 151 and the air distribution box 141 wear too quickly, the adjustment process is opposite to the above process, so that the air distribution component 14 and the air supply component 15 can operate under a suitable compression condition.

It should be noted that the air distribution hole 1511 is provided with a limiting slot, and the air inlet pipe is engaged in the limiting slot through a limiting protrusion, so that the air inlet pipe has a certain range of motion, which prevents the air inlet pipe from extending into the air distribution box 141 and hindering the rotation of the air distribution box 141 or the air inlet pipe from escaping from the air distribution disk 151 during the adjustment process of the adjustment rod 1551.

It should be noted that the adjusting rod 1551 has a limiting groove and/or a limiting protrusion to clamp the air box 141 on the adjusting rod 1551 to prevent the adjusting rod 1551 from falling off.

It can be understood that the air distribution box 141 can be connected to the housing 11 through a roller bearing, and the air distribution assembly 14 has a driver 143 for driving the air distribution box 141 to rotate, thereby controlling the rotation rate of the air distribution box 141.

According to the air supply device of the embodiment of the present disclosure, the air distribution component includes an air distribution box and a plurality of air outlet pipes, the air distribution box is rotatably mounted at the assembly hole of the casing, the side of the air distribution box facing the inside of the casing has a plurality of mounting holes, the side of the air distribution box located outside the casing has an opening opposite to the mounting holes, the plurality of air outlet pipes are correspondingly penetrated into the plurality of mounting holes, the air supply component includes an air distribution disk and a bellows, the air distribution disk is rotatably mounted at the opening, and the air distribution disk has a plurality of air distribution holes, the plurality of air distribution holes are opposite to the plurality of air outlet pipes, the bellows has a plurality of air inlet pipes connected to the air distribution holes, and a clamping piece is provided between the bellows and the air distribution disk, the adjusting piece includes an adjusting rod and a third limiting piece, the adjusting rod passes through the bellows and the air distribution disk in sequence and is connected to the bellows, the third limiting piece is movably provided on the adjusting rod and The stop bellows is opposed to the side of the air distribution disk, so that the air supply assembly of the present invention can pass primary air into the casing when the air distribution assembly is rotating. In this process, the air supply assembly and the air distribution assembly always maintain good sealing, and the primary air circulates losslessly, which greatly reduces the leakage and loss of primary air and improves the utilization rate of primary air. The circumferentially distributed air outlet ducts of the air supply assembly can guide the primary air to all directions in the casing, so that the primary air can fully act on fuel combustion and improve combustion efficiency. At the same time, the present invention can adjust the position of the third limit member by adjusting the adjusting rod to adjust the tightness of the clamping member, so that the air distribution assembly and the air supply assembly are operated under a suitable clamping condition, which not only reduces the leakage of primary air but also makes the rotation of the air distribution assembly smooth and unstagnant.

Further, as shown in FIG. 17 , the adjusting rod 1551 is a threaded rod, and the third limiting member 1552 is a limiting nut.

In other words, the adjusting rod 1551 can adjust the position of the limiting nut on the adjusting rod 1551 by screwing in or out the limiting nut. When the limiting nut is screwed in, the limiting nut drives the bellows 152 to overcome the action of the clamping piece 154 and move toward the direction close to the air distribution disk 151. When the limiting nut is screwed out, the clamping piece 154 can push the bellows 152 to move away from the air distribution disk 151, thereby realizing the position adjustment of the bellows 152 relative to the adjusting rod 1551.

Furthermore, as shown in FIG. 17 , the outer peripheral edge of the opening has an assembly groove that is recessed toward the housing 11 , and the air distribution disc 151 is embedded in the assembly groove.

It can be understood that when the air distribution box 141 rotates, the air distribution box 141 is always pressed in the assembly groove under the action of the clamping piece 154. At this time, the assembly groove can be used as a limiting structure to prevent the air distribution disc 151 and the air distribution box 141 from separating from each other, thereby improving the tightness of the assembly of the air distribution mechanism and the air supply mechanism.

It should be noted that the assembly groove and the air distribution disc 151 need to be made of wear-resistant components, and lubricating oil should be applied between the contact surfaces of the assembly groove and the air distribution disc 151 to reduce mutual wear between the assembly groove and the air distribution disc 151 and improve the durability of the parts.

Furthermore, as shown in FIG. 17 and FIG. 18 , a seal is provided between the air distribution plate 151 and the assembly groove, thereby further improving the sealing performance of the assembly of the two.

Further, as shown in FIG. 17 and FIG. 18 , the sealing member is an annular sealing ring 156 , and an annular groove is provided on the side of the air distribution disc 151 facing the air distribution box 141 and/or the bottom surface of the assembly groove, and the annular sealing ring 156 fits in the annular groove.

It can be understood that the air distribution holes 1511 are arranged in a ring shape on the air distribution plate 151, and the annular sealing ring 156 can be arranged on the outer ring edge and the inner ring edge of the ring formed by the air distribution holes 1511 to prevent primary air leakage from the inner and outer ring edges of the air distribution holes 1511.

Further, as shown in FIG. 17 , the pressing member 154 is a pressing spring.

It can be understood that when the bellows 152 moves toward the direction close to the air distribution box 141, the spring compression degree increases, and the pressure of the spring on the air distribution disc 151 also increases synchronously, thereby driving the air distribution disc 151 to be close to the air distribution box 141. Conversely, the air distribution disc 151 and the air distribution box are lowered. 141 degree of compression to reduce wear.

Further, as shown in FIG. 17 and FIG. 18 , there are multiple compression springs, and the multiple compression springs correspond one-to-one to at least part of the multiple air inlet pipes 153 , and the compression springs are sleeved on the corresponding air inlet pipes 153 .

It can be understood that the compression spring sleeve arranged on the intake pipe 153 can form a protective structure for the intake pipe 153 to prevent the intake pipe 153 from being directly hit or bent. At the same time, multiple compression springs are arranged circumferentially along the bellows 152, so that the air distribution disc 151 is subjected to uniform force in all directions, avoiding stress concentration and causing brittle failure of the air distribution disc 151 or the bellows 141.

Furthermore, the air supply device of the burner also includes a hoop plate (not shown), which connects the multiple air outlet pipes 142 in sequence along the circumference of the air distribution box 141 to form an air outlet cover.

It can be understood that the hoop plate and the air outlet pipe 142 cooperate to form a mesh frame-shaped air outlet hood. At this time, the air outlet hood can be used as a combustion cone of the burner to hold fuel. When the burner is working, the combustion cone forms a rotating burner head. At the same time, primary air can be introduced into the combustion cone in a circumferential direction, so that the fuel in the air outlet hood can be burned in a fluidized state, thereby improving the combustion efficiency. In addition, the hoop plate can improve the structural strength of the air outlet pipe 142 to prevent the air outlet pipe 142 from bending or breaking due to collision with the fuel.

Optionally, the air outlet pipe may be provided with a plurality of air outlet holes at intervals along its length direction, so as to more evenly introduce primary air into the burner.

Furthermore, as shown in FIG. 17 , the cross-sectional area of the air outlet hood gradually increases in the direction toward the inside of the casing 11 , thereby increasing the opening of the air outlet hood, which is beneficial for the fuel to fall from the feeding mechanism into the air outlet hood for combustion.

Furthermore, as shown in FIG. 17 , a slag discharge plate 1553 is provided in the air outlet hood, the slag discharge plate 1553 is connected to the air outlet pipe 142 , and the adjustment rod 1551 is connected to the slag discharge plate 1553 .

It is understandable that the slag plate 1553 can be rotated by operating the handle of the adjustment rod 1551, thereby driving the air outlet hood to rotate quickly and removing the combustion residues attached to the slag plate 1553.

Optionally, the slag plate 1553 may be rotatably connected to the air outlet pipe 142 via a rolling bearing, so that the slag plate 1553 may be rotated by the adjusting rod 1551 to disturb the combustion residue in the air outlet hood.

As shown in FIGS. 19-24 , the gasification device according to the embodiment of the present disclosure includes the burner 100 according to any one of the above embodiments.

The inventors realized that fuel gasification is the process of thermally processing solids or other raw materials with a gasifying agent, and the product is a combustible gas (coal gas). Solid fuels are various coals and cokes; gasifying agents include air, oxygen-enriched air, oxygen and water vapor, and carbon dioxide. At present, industrial gasification technology is mainly divided into fixed bed, fluidized bed and fluidized bed gasification technologies according to the contact mode between fuel and gasifying agent. Among them, fluidized bed gasification technology has the advantages of uniform heat and mass transfer, high degree of automation, and easy scale-up. However, due to the high air flow velocity and low reaction temperature in the bed, there are problems of low carbon conversion rate and high carbon content in fly ash. In addition, the particle size of fuel suitable for reaction in fluidized bed is about 1 cm. Fuels with a size larger than 1 cm need to be crushed and prepared first, which increases the investment in equipment and systems.

Based on this, as shown in Figures 3, 4, 19 and 20, the gasification device provided in the embodiment of the present disclosure includes a burner 100, a fluidized bed body 2, a separator 31 and a first heat exchanger, and the gasification device is formed by coupling an inclined rotating cone with a circulating fluidized bed.

The burner 100 has a combustion chamber 101, an air inlet 102, an air outlet 132 and a slag outlet 162. The air inlet 102, the air outlet 132 and the slag outlet 162 are connected to the combustion chamber 101. The combustion chamber 101 contains initial fuel and the initial fuel is crushed. The air inlet 102 is suitable for introducing a gasifying agent into the combustion chamber 101 so that the initial fuel burns in the combustion chamber 101 to form coke particles and coal gas. The slag outlet 162 is suitable for discharging the coke particles in the combustion chamber 101, and the air outlet 132 is suitable for discharging the coal gas in the combustion chamber 101.

The fluidized bed body 2 is connected to the slag outlet 162, and the coke particles in the combustion chamber 101 can enter the fluidized bed body 2 through the slag outlet 162 to react and generate coal gas. The separator 31 is connected to the fluidized bed body 2, and the separator 31 is used to separate the coarse ash carried in the coal gas and return the coarse ash to the fluidized bed body 2 for further reaction.

The first heat exchanger 41 is in communication with the combustion chamber 101 and the separator 31 . A refrigerant (not shown) is provided in the first heat exchanger 41 . The refrigerant performs heat exchange with the coal gas in the combustion chamber 101 and the coal gas in the separator 31 .

In the gasification device of the inclined rotating cone coupled with a circulating fluidized bed in the embodiment of the present disclosure, the initial fuel is crushed in the combustion chamber 101 and burned into coke particles and coal gas with a particle size smaller than the initial fuel, the coke particles enter the fluidized bed body 2 to react and produce coal gas, the coal gas in the fluidized bed body 2 enters the separator 31 to separate the coarse ash carried in the coal gas, and then the coal gas in the combustion chamber 101 and the coal gas in the separator 31 are mixed and enter the first heat exchanger 41 to reduce the temperature of the coal gas. Therefore, the gasification device of the inclined rotating cone coupled with a circulating fluidized bed in the embodiment of the present disclosure can not only improve the carbon conversion rate of the initial fuel and widen the particle size range of the initial fuel, but also reduce the cost of pretreatment and preparation of the initial fuel, thereby saving costs.

In some embodiments, the separator 31 is a cyclone separator. A cyclone separator is a device used for separation of gas-solid systems or liquid-solid systems. The working principle of a cyclone separator is to rely on the rotational motion caused by the tangential introduction of airflow to cause solid particles or liquid droplets with large inertial centrifugal force to be thrown toward the outer wall and separated. The cyclone separator has a simple structure, great operational flexibility, high efficiency, convenient management and maintenance, and low price.

In some embodiments, the first heat exchanger 41 has a first channel (not shown) and a second channel (not shown). The first channel is connected to the combustion chamber 101 and the separator 31, so that the coal gas in the combustion chamber 101 and the separator 31 can enter the first channel. The refrigerant is arranged in the second channel, and the coal gas in the first channel and the refrigerant in the second channel perform heat exchange to reduce the temperature of the coal gas.

Specifically, the size range of the initial fuel applicable to the burner 100 is ≤ 20 cm.

In some embodiments, the refrigerant (cooling medium) includes but is not limited to water and air, and the refrigerant absorbs the heat of the coal gas and heats up through the first heat exchanger 41. The high-temperature refrigerant can be introduced into the combustion chamber 101 to heat the initial fuel and the gasifying agent.

In some embodiments, the burner 100 includes a rotating cone 121 and a secondary combustion chamber assembly 13 . The rotating cone 121 is in communication with the secondary combustion chamber assembly 13 , and the rotating cone 121 is rotatable relative to the secondary combustion chamber assembly 13 .

The burner 100 further comprises a fuel inlet 1313 , which is connected to the secondary combustion chamber assembly 13 through the gas outlet 132 . The fuel inlet 1313 is used to introduce initial fuel into the secondary combustion chamber assembly 13 . The slag outlet 162 is connected to the rotating cone 121 .

The air inlet 102 includes an air supply port 1021 and a first air inlet 1317 . The air supply port 1021 is communicated with the rotating cone 121 , and the first air inlet 1317 is communicated with the secondary combustion chamber assembly 13 .

Specifically, the air supply port 1021 is provided at the bottom of the rotating cone 121, and the first gasifying agent is introduced into the rotating cone 121 through the air supply port 1021. The first air inlet 1317 is provided at the top of the secondary combustion chamber assembly 13, and the second gasifying agent is introduced into the secondary combustion chamber assembly 13 through the first air inlet 1317. The gasifying agent in the secondary combustion chamber assembly 13 enters the secondary combustion chamber assembly 13 from the top of the secondary combustion chamber assembly 13 and descends into the rotating cone 121. The fuel in the rotating cone 121 contacts the gasifying agent under the combined action of the rotating cone 121, the flow of the first gasifying agent, and the swirling stirring of the second gasifying agent, rapidly heats up, continuously rolls, and reacts on multiple surfaces, thereby improving the carbon conversion rate of the initial fuel.

In some embodiments, the rotating cone 121 includes a support ring 1217, a support arm 1218, a grate (not shown), a cone top 1219, and a grate hanging rod 1220. There are multiple support rings 1217, and the multiple support rings 1217 are arranged at intervals in the up and down direction, and the central axes of the multiple support rings 1217 are collinear, and the cross-sectional area of the support ring 1217 gradually decreases in the downward direction. The support arm 1218 is provided on the support ring 1217, and there are multiple support arms 1218, and the multiple support arms 1218 are arranged around the outer wall surface of the support ring 1217 at intervals.

Specifically, the support ring 1217 includes at least two support sub-segments to prevent thermal expansion during high temperature operation.

A first chamber 1212 is formed between the support ring 1217 and the support arm 1218, and the initial fuel is disposed in the first chamber 1212. A first gap 125 is defined between the support ring 1217 and the support arm 1218.

There are multiple grate rods 1220, which are divided into multiple groups. The multiple groups of grate rods 1220 are arranged at intervals in the up and down direction, and the multiple groups of grate rods 1220 are alternately arranged with the multiple support rings 1217, and each group of grate rods 1220 includes at least one grate rod 1220. There are multiple grates, which are detachably mounted on the grate rods 1220 to prevent high-temperature thermal expansion during operation.

Specifically, the grate has a second gap (not shown), and the diameter of the second gap is no more than 1 cm, so that ash generated after the initial fuel in the first chamber 1212 undergoes pyrolysis reaction can leak out from the second gap and the first gap 125 .

The cone top 1219 is arranged on the uppermost support ring 1217 , and the cone top 1219 is connected to the secondary combustion chamber assembly 13 .

In some embodiments, the secondary combustion chamber assembly 13 has a second chamber 1318, an outer shell 133, an inner shell 134 and a fuel inlet 1313. The outer shell 133 is arranged around the inner shell 134, and there is a cavity between the outer shell 133 and the inner shell 134. The second chamber 1318 is formed in the inner shell 134, and the cross-sectional area of the inner shell 134 gradually increases in the oblique downward direction. The fuel inlet 1313 is connected to the second chamber 1318, and the initial fuel is introduced into the second chamber 1318 through the fuel inlet 1313. The first air inlet 1317 is arranged at the top of the secondary combustion chamber assembly 13, and the second gasification agent introduced into the secondary combustion chamber assembly 13 through the first air inlet 1317 spirally descends from the top of the secondary combustion chamber assembly 13 into the rotating cone 121. The second chamber 1318 and the first chamber 1212 form a combustion chamber 101.

The pyrolysis gas or gasification gas generated by the reaction of the initial fuel in the rotating cone 121 is sucked into the second chamber 1318 of the secondary combustion chamber assembly 13 under the negative pressure generated by the strong cyclone of the second gasifier. The unburned carbon and fly ash contained in the gas are centrifuged under the cyclone, collide with the inner shell 134 of the second chamber 1318, fall, and are separated from the gas.

In some embodiments, the central axis of the rotating cone 121 has an angle α with the horizontal, 35°≤α≤45°,

The included angle between the central axis of the secondary combustion chamber assembly 13 and the horizontal is β, 35°≤β≤45°, and the angle difference between α and β is less than 10°.

In some embodiments, the gasification device coupled with the inclined rotating cone and the circulating fluidized bed further includes a crushing member, which is arranged in the rotating cone 121 to crush part of the initial fuel in the rotating cone 121 into coke particles, and the particle size of the coke particles is less than or equal to 1 cm.

Specifically, the crushing piece is a high temperature resistant heavy ball. The crushing piece is arranged in the rotating cone 121 to crush the initial fuel in the rotating cone 121 that is large in size, slow in reaction and difficult to crush, thereby improving the contact between the gasifying agent and the initial fuel and improving the carbon conversion rate of the initial fuel.

In some embodiments, the gasification device coupled with the inclined rotating cone and the circulating fluidized bed also includes a slag discharge assembly 16, which is arranged around the outer wall of the rotating cone 121. There is a gap 163 between the rotating cone 121 and the secondary combustion chamber assembly 13. The slag discharge assembly 16 is connected to the gap 163 so that part of the initial fuel in the rotating cone 121 can fall into the slag discharge assembly 16 through the gap 163. The slag discharge port 162 is connected to the slag discharge assembly 16, and the fuel in the slag discharge assembly 16 is discharged into the fluidized bed body 2 through the slag discharge port 162.

Specifically, there is a gap 163 between the rotating cone 121 and the secondary combustion chamber assembly 13, so that part of the fuel that falls into the first gap 125 and the second gap in the rotating cone 121 and the unburned carbon and fly ash that are sucked into the secondary combustion chamber assembly 13 and separated from the gas can fall into the slag discharge assembly 16 through the gap 163.

In some embodiments, the slag tapping assembly 16 includes a screw conveying shaft 161 , which is disposed in the slag tapping assembly 16 and is rotatable relative to the slag tapping assembly 16 . The screw conveying shaft 161 can convey the fuel in the slag tapping assembly 16 to the slag tapping port 162 .

Specifically, the slag discharge assembly 16 has a collection chamber 167, and the collection chamber 167 is connected to the gap 163. The screw conveying shaft 161 is arranged in the collection chamber 167. The screw conveying shaft 161 includes a rod 164, a rotating member 165 and a driving member 166. The rotating member 165 is arranged on the rod 164 and spirally rises along the length direction of the rod 164. The rotating member 165 can carry fuel, and the driving member 166 is connected to the rod 164 to drive the rod 164 to rotate.

When in use, the driving member 166 is turned on, and the driving member 166 drives the rod member 164 to rotate, so that the rotating member 165 carries the fuel in the collection chamber 167 to the slag outlet 162, thereby facilitating the fuel in the collection chamber 167 to be discharged from the collection chamber 167.

In some embodiments, the fluidized bed body 2 has a first reaction chamber 21, a first feed port 22, a third air inlet 24 (air inlet for feeding a gasifying agent) and a first slag discharge port 23. The first reaction chamber 21 is connected to the slag discharge port 162, the coke particles in the combustion chamber 101 react in the first reaction chamber 21, the first feed port 22, the third air inlet 24 and the first slag discharge port 23 are connected to the first reaction chamber 21, the first feed port 22 is located at the bottom of the first reaction chamber 21, the first feed port 22 is used to introduce coke particles into the first reaction chamber 21, the third air inlet 24 is used to introduce a gasifying agent into the first reaction chamber 21, and the first slag discharge port 23 is suitable for discharging slag produced after the coke particles react in the first reaction chamber 21.

Specifically, the first reaction chamber 21 is connected to the slag outlet 162, so that the fuel in the collection chamber 167 can enter the first reaction chamber 21 through the slag outlet 162. The first feed port 22 is connected to the first reaction chamber 21, so that the gasifying agent introduced into the first reaction chamber 21 through the first feed port 22 can blow the fuel and react with the fuel to generate coal gas. The first feed port 22 is located at the bottom of the first reaction chamber 21, so that the gasifying agent and the fuel can contact more fully, thereby improving the production efficiency of coal gas.

The slag generated after the fuel reaction in the first reaction chamber 21 is discharged through the first slag discharge port 23, so that the first reaction chamber 21 is cleaned in time, so that the gasification agent and the fuel are in contact more fully.

In some embodiments, the gasification device with the inclined rotating cone coupled to the circulating fluidized bed further includes a slag pool 32 , which is connected to the first slag discharge port 23 , and is used to collect the slag in the first reaction chamber 21 .

Specifically, the slag pool 32 is communicated with the first slag discharge port 23 , so that the slag in the first reaction chamber 21 is discharged into the slag pool 32 through the first slag discharge port 23 , so that the slag pool 32 collects the slag uniformly.

In some embodiments, the gasification device coupled with the inclined rotating cone and the circulating fluidized bed further includes a dust collector 33 and a first purification assembly 34. The dust collector 33 is connected to the first heat exchanger 41 and the first purification assembly 34. The dust collector 33 is used to remove fine ash from the coal gas discharged from the first heat exchanger 41, and return the removed fine ash to the combustion chamber 101 to mix with the initial fuel. The first purification assembly 34 is used to purify the coal gas discharged from the dust collector 33.

Specifically, the high-temperature fine ash removed by the dust collector 33 is mixed with the initial fuel to increase the temperature of the initial fuel, reduce the residual carbon in the fly ash, and improve the carbon conversion rate.

In some embodiments, the gasification device of the inclined rotating cone coupled with the circulating fluidized bed further includes a raw material bin 35 and a bin pump 36. The raw material bin 35 is connected to the second chamber 1318 to provide the initial fuel to the second chamber 1318. The bin pump 36 is connected to the dust collector 33 and the raw material bin 35, so that the high-temperature fine ash removed by the dust collector 33 can be mixed with the initial fuel in the raw material bin 35, thereby increasing the temperature of the initial fuel in the raw material bin 35, reducing the residual carbon in the fly ash, and increasing the carbon conversion rate.

In some embodiments, the first purification component 34 includes a waste heat recovery device 341, a desulfurizer 342 and a gas station 343. The dust collector 33, the waste heat recovery device 341, the desulfurizer 342 and the gas station 343 are connected in sequence, so that the coal gas passing through the dust collector 33 is cooled down by the waste heat recovery device 341, desulfurized by the desulfurizer 342, and finally enters the gas station 343.

The inventors have realized that fluidized bed gasification technology and entrained flow gasification technology have higher requirements on the particle size of the fuel, and the particle size requirements of the two are also different, and a coal powder preparation system needs to be added, resulting in increased investment in equipment and systems.

Based on this, as shown in Figures 3, 4, 19 and 21, the gasification device provided in the embodiment of the present disclosure includes a burner 100, a fluidized bed body 2, a dust collector 33 and an air-entrained bed body 5, realizing the coupling of the inclined rotating cone with the air-entrained bed and the circulating fluidized bed.

The burner 100 has a combustion chamber 101, an air inlet 102, an air outlet 132 and a slag outlet 162. The air inlet 102, the air outlet 132 and the slag outlet 162 are connected to the combustion chamber 101. The combustion chamber 101 has an initial fuel. The air inlet 102 is suitable for introducing a gasifying agent into the combustion chamber 101 so that the initial fuel burns in the combustion chamber 101 to form coke particles and coal gas. The slag outlet 162 is suitable for discharging coke particles in the combustion chamber 101. The particle size of the coke particles is smaller than the particle size of the initial fuel. The air outlet 132 is suitable for discharging the coal gas in the combustion chamber 101. Specifically, the size range of the initial fuel applicable to the burner 100 is ≤20 cm. The particle size of the coke particles is less than or equal to 1 cm.

The fluidized bed body 2 has a first reaction chamber 21 containing a gasifying agent. The first reaction chamber 21 is connected to a slag outlet 162. Coke particles in the combustion chamber 101 enter the first reaction chamber 21 through the slag outlet 162 and react in the first reaction chamber 21 to generate coal gas.

The dust collector 33 has a first inlet 331 and a first outlet 332. The combustion chamber 101 and the first reaction chamber 21 are connected to the first inlet 331. The dust collector 33 is used to purify the coal gas in the combustion chamber 101 and the coal gas in the first reaction chamber 21 to remove the fine ash carried by the coal gas. The first outlet 332 is used to discharge the fine ash, and the particle size of the fine ash is smaller than the particle size of the coke particles. Specifically, the particle size of the fine ash is less than 0.1 mm.

The fluidized bed body 5 has a second reaction chamber 51, a second inlet 52 and a second outlet 53. The second inlet 52 is connected to the first outlet 332 so that the fine ash in the dust collector 33 can enter the second reaction chamber 51. The second reaction chamber 51 contains a gasifying agent. The fine ash in the second reaction chamber 51 reacts with the gasifying agent to produce coal gas and is discharged from the second outlet 53. The second outlet 53 is connected to the second reaction chamber 51 and the first inlet 331 of the dust collector 33.

In the gasification device in which the inclined rotating cone is coupled with an air flow bed and a circulating fluidized bed in the embodiment of the present disclosure, the initial fuel is burned in the combustion chamber 101 to generate coke particles and coal gas. The particle size of the coke particles is smaller than the particle size of the initial fuel so that the coke particles can enter the first reaction chamber 21 to react and generate coal gas and fine ash. The particle size of the fine ash is smaller than the particle size of the coke particles. After the dust collector 33 separates the fine ash from the coal gas, the fine ash enters the second reaction chamber 51 to continue to react and generate coal gas. Therefore, the gasification device in which the inclined rotating cone is coupled with an air flow bed and a circulating fluidized bed in the embodiment of the present disclosure can gradually crush the initial fuel so that the fuel can react in the fluidized bed body 2 and the air flow bed body 5 to generate coal gas, which not only improves the carbon conversion rate of the initial fuel and broadens the particle size range of the initial fuel, but also reduces the cost of pretreatment and preparation of the initial fuel, thereby saving costs.

In some embodiments, the gasification device coupled with the inclined rotating cone and the fluidized bed and the circulating fluidized bed also includes a separator 31, and the separator 31 is connected to the first reaction chamber 21. The coal gas in the first reaction chamber 21 can enter the separator 31. The separator 31 is used to separate the coarse ash carried by the coal gas and return the coarse ash to the first reaction chamber 21 for further reaction.

Specifically, the separator 31 separates the coarse ash carried in the coal gas exhausted from the first reaction chamber 21 and returns it to the first reaction chamber 21 for further reaction, which can effectively improve the carbon conversion rate of the coarse ash, save resources, and improve the coal gas productivity of the first reaction chamber 21.

In some embodiments, the separator 31 is a cyclone separator. A cyclone separator is a device used for separation of gas-solid systems or liquid-solid systems. The working principle of a cyclone separator is to rely on the rotational motion caused by the tangential introduction of airflow to cause solid particles or liquid droplets with large inertial centrifugal force to be thrown toward the outer wall and separated. The cyclone separator has a simple structure, great operational flexibility, high efficiency, convenient management and maintenance, and low price.

In some embodiments, the gasification device coupling the inclined rotating cone with the fluidized bed and the circulating fluidized bed also includes a bin pump 36 , which connects the first outlet 332 and the second inlet 52 , and is used to pass the fine ash in the dust collector 33 into the second reaction chamber 51 .

Specifically, the silo pump 36 passes the fine ash in the dust collector 33 into the second reaction chamber 51, which can effectively increase the transportation speed of the fine ash and the reaction rate of the fine ash in the fluidized bed body 5, thereby improving the carbon conversion rate and coal gas generation rate of the gasification device coupled with the inclined rotating cone and the fluidized bed and the circulating fluidized bed of the embodiment of the present disclosure.

In some embodiments, the gasification device coupled with the inclined rotating cone and the fluidized bed or the circulating fluidized bed further includes a second heat exchanger 42 and a third heat exchanger 43. The second heat exchanger 42 is connected with the separator 31, the combustion chamber 101 and the second reaction chamber 51. The second heat exchanger 42 has a refrigerant, and the coal gas discharged from the combustion chamber 101, the separator 31 and the second reaction chamber 51 is heat-exchanged with the refrigerant.

Specifically, the second heat exchanger 42 has a first channel (not shown) and a second channel (not shown), the refrigerant in the second heat exchanger 42 is arranged in the first channel, and the second channel is connected with the separator 31, the combustion chamber 101 and the second reaction chamber 51. The coal gas in the separator 31, the combustion chamber 101 and the second reaction chamber 51 is discharged into the second channel and performs heat exchange with the refrigerant in the first channel to reduce the temperature of the coal gas in the second channel.

In some embodiments, the refrigerant (cooling medium) includes but is not limited to water and air.

The third heat exchanger 43 is disposed in the second reaction chamber 51 and communicated with the second heat exchanger 42 . Part of the refrigerant after heat exchange in the second heat exchanger 42 enters the third heat exchanger 43 .

Specifically, the third heat exchanger 43 is connected to the first channel so that the refrigerant heated after heat exchange in the first channel can enter the third heat exchanger 43. The third heat exchanger 43 is disposed in the second reaction chamber 51 so that the refrigerant in the third heat exchanger 43 heats the gasifying agent in the second reaction chamber 51.

In some embodiments, the second inlet 52 is located at the top of the fluidized bed body 5 , and the second inlet 52 is suitable for introducing the gasifying agent and the fine ash in the dust collector 33 . The second outlet 53 is located below the second inlet 52 .

Specifically, there are two second inlets 52, which are arranged at intervals on the top of the fluidized bed body 5. The gasifying agent and the fine ash in the dust collector enter the second reaction chamber 51 through the second inlet, so that the fine ash and the gasifying agent can start to contact from the second inlet 52, so that the fine ash and the gasifying agent in the second reaction chamber 51 can contact more fully, thereby allowing the fine ash to react more fully in the second reaction chamber 51.

In some embodiments, the fluidized bed body 2 has a third air inlet 24, which is located at the bottom of the fluidized bed body 2, and is suitable for introducing a gasifying agent.

Specifically, the fluidized bed body 2 also has a first feed port 22, which is connected to the slag outlet 162, so that the coke particles in the combustion chamber 101 can enter the first reaction chamber 21 through the first feed port 22. The first feed port 22 is located at the lower end of the fluidized bed body 2 and above the third air inlet 24, so that the gasification agent in the first reaction chamber 21 can blow the coke particles in the first reaction chamber 21 to move, so that the gasification agent and the coke particles are in more sufficient contact, the carbon conversion rate of the coke particles is improved, and thus the production of coal gas is increased.

In some embodiments, the gasification device in which the inclined rotating cone is coupled with the fluidized bed and the circulating fluidized bed further includes a waste heat recovery device 341, a desulfurizer 342 and a gas station 343 which are connected in sequence.

The dust collector 33 also has a third outlet 333, which is connected to the waste heat recovery device 341. The coal gas in the dust collector 33 is suitable for being discharged from the third outlet 333 after the fine ash is removed and passes through the waste heat recovery device 341, the desulfurizer 342 and the gas station 343 in sequence.

Specifically, the coal gas after the fine ash is removed in the dust collector 33 enters the waste heat recovery device 341 to be cooled again, and the cooled coal gas enters the separator for desulfurization, and finally the coal gas enters the gas station 343.

In some embodiments, the burner 100 includes a rotating cone 121 and a secondary combustion chamber assembly 13. The rotating cone 121 is connected to the secondary combustion chamber assembly 13. The rotating cone 121 is rotatable relative to the secondary combustion chamber assembly 13. There is a gap 163 between the rotating cone 121 and the secondary combustion chamber assembly 13, and the initial fuel can be discharged through the gap 163.

The burner 100 also has a fuel inlet 1313, which is connected to the secondary combustion chamber assembly 13. The fuel inlet 1313 is used to introduce initial fuel into the secondary combustion chamber assembly 13. The slag outlet 162 is connected to the gap 163 and the first reaction chamber 21, so that the initial fuel discharged from the gap 163 can enter the first reaction chamber 21 through the slag outlet 162.

Specifically, the air inlet 102 includes an air supply port 1021 and a first air inlet 1317. The air supply port 1021 is provided at the bottom of the rotating cone 121 and communicated with the rotating cone 121, and a first gasification agent is introduced into the rotating cone 121 through the air supply port 1021. The first air inlet 1317 is provided at the top of the secondary combustion chamber assembly 13 and communicated with the secondary combustion chamber assembly 13, and a second gasification agent is introduced into the secondary combustion chamber assembly 13 through the first air inlet 1317, and the second gasification agent in the secondary combustion chamber assembly 13 enters the secondary combustion chamber assembly 13 from the top of the secondary combustion chamber assembly 13 and descends into the rotating cone 121.

The initial fuel in the rotating cone 121 contacts the gasifying agent under the combined action of the rotating cone 121, the flow of the first gasifying agent and the swirling stirring of the second gasifying agent, rapidly heats up, tumbles continuously, and reacts on multiple surfaces, thereby improving the carbon conversion rate of the initial fuel.

In some embodiments, the rotating cone 121 includes a support ring 1217, a support arm 1218, a grate (not shown), a cone top 1219, and a grate hanging rod 1220. There are multiple support rings 1217, and the multiple support rings 1217 are arranged at intervals in the up and down directions, and the central axes of the multiple support rings 1217 are collinear, and the cross-sectional area of the support ring 1217 gradually decreases in the downward direction. The support arm 1218 is provided on the support ring 1217, and there are multiple support arms 1218, and the multiple support arms 1218 are arranged around the outer wall surface of the support ring 1217 at intervals.

Specifically, the support ring 1217 includes at least two support sub-segments (not shown) to prevent thermal expansion due to high temperature during operation.

A first chamber is formed between the support ring 1217 and the support arm 1218, and the initial fuel is disposed in the first chamber. A first gap 125 is provided between the support ring 1217 and the support arm 1218, so that when the rotating cone 121 rotates, coke particles generated by the combustion of the initial fuel in the first chamber can fall from the first gap 125.

There are multiple grate rods 1220, which are divided into multiple groups. The multiple groups of grate rods 1220 are arranged at intervals in the up and down direction, and the multiple groups of grate rods 1220 are alternately arranged with the multiple support rings 1217, and each group of grate rods 1220 includes at least one grate rod 1220. There are multiple grates, which are detachably mounted on the grate rods 1220 to prevent high-temperature thermal expansion during operation.

Specifically, the grate is provided with a second gap (not shown), and the diameter of the second gap is no more than 1 cm, so that ash generated by the combustion of the initial fuel in the first chamber can leak out from the second gap.

The cone top 1219 is arranged on the uppermost support ring 1217 , and the cone top 1219 is connected to the secondary combustion chamber assembly 13 .

In some embodiments, the secondary combustion chamber assembly 13 has a second chamber 1318, an outer shell 133 and an inner shell 134. The outer shell 133 is arranged around the inner shell 134, and a cooling chamber 1351 is provided between the outer shell 133 and the inner shell 134. The second chamber 1318 is formed in the inner shell 134, and the cross-sectional area of the inner shell 134 gradually increases in the oblique downward direction. The fuel inlet 1313 is formed on the secondary combustion chamber assembly 13, and the fuel inlet 1313 is connected to the second chamber 1318, and the initial fuel is introduced into the second chamber 1318 through the fuel inlet 1313. The first air inlet 1317 is provided at the top of the secondary combustion chamber assembly 13, and the second gasification agent introduced into the secondary combustion chamber assembly 13 through the first air inlet 1317 spirally descends from the top of the secondary combustion chamber assembly 13 into the rotating cone 121. The second chamber 1318 and the first chamber form a combustion chamber 101.

The pyrolysis gas or gasification gas generated by the reaction of the initial fuel in the rotating cone 121 is sucked into the second chamber 1318 of the secondary combustion chamber assembly 13 under the negative pressure generated by the strong cyclone of the second gasifier. The unburned carbon and fly ash contained in the gas are centrifuged under the cyclone, collide with the inner shell 134 of the second chamber 1318, fall, and are separated from the gas.

In some embodiments, the central axis of the rotating cone 121 has an angle α with the horizontal, 35°≤α≤45°,

The included angle between the central axis of the secondary combustion chamber assembly 13 and the horizontal is β, 35°≤β≤45°, and the angle difference between α and β is less than 10°.

In some embodiments, the gasification device of the inclined rotating cone coupled with the circulating fluidized bed further comprises a crushing member, which is arranged on the rotating cone 121 The rotating cone 121 is used to crush part of the initial fuel into coke particles, and the particle size of the coke particles is less than or equal to 1 cm.

Specifically, the crushing piece is a high temperature resistant heavy ball. The crushing piece is arranged in the rotating cone 121 to crush the initial fuel in the rotating cone 121 that is large in size, slow in reaction and difficult to crush, thereby improving the contact between the gasifying agent and the initial fuel and improving the carbon conversion rate of the initial fuel.

In some embodiments, the gasification device of the inclined rotating cone coupled with the fluidized bed and the circulating fluidized bed of the embodiment of the present disclosure further includes a slag discharge assembly 16. The slag discharge assembly 16 is arranged around the outer wall surface of the rotating cone 121, and the slag discharge assembly 16 is connected to the gap 163, so that part of the initial fuel in the rotating cone 121 can fall into the slag discharge assembly 16 through the gap 163, and the slag discharge port 162 is connected to the slag discharge assembly 16, and the fuel in the slag discharge assembly 16 is discharged into the first reaction chamber 21 through the slag discharge port 162.

Specifically, the slag outlet 162 is formed on the slag assembly 16. Part of the fuel dropped from the first gap 125 and the second gap and the unburned carbon and fly ash separated from the gas sucked into the secondary combustion chamber assembly 13 by the second gasification agent can drop into the slag assembly 16 through the gap 163.

In some embodiments, the slag tapping assembly 16 includes a screw conveying shaft 161 , which is disposed in the slag tapping assembly 16 and is rotatable relative to the slag tapping assembly 16 . The screw conveying shaft 161 can convey the fuel in the slag tapping assembly 16 to the slag tapping port 162 .

Specifically, the slag discharge assembly 16 has a collection chamber 167, and the collection chamber 167 is connected to the gap 163. The screw conveying shaft 161 is arranged in the collection chamber 167. The screw conveying shaft 161 includes a rod 164, a rotating member 165 and a driving member 166. The rotating member 165 is arranged on the rod 164 and spirally rises along the length direction of the rod 164. The rotating member 165 can carry fuel, and the driving member 166 is connected to the rod 164 to drive the rod 164 to rotate. When in use, the driving member 166 is turned on, and the driving member 166 drives the rod 164 to rotate, so that the rotating member 165 carries the fuel in the collection chamber 167 to the slag discharge port 162, thereby facilitating the fuel in the collection chamber 167 to be discharged from the collection chamber 167.

In some embodiments, the gasification device coupled with the inclined rotating cone and the fluidized bed and the circulating fluidized bed also includes a raw material bin 35, which is connected to the fuel inlet 1313. The raw material bin 35 is suitable for introducing initial fuel into the combustion chamber 101 through the fuel inlet 1313 to ensure the amount of initial raw materials in the combustion chamber 101.

In some embodiments, the gasification device in which the inclined rotating cone is coupled with the fluidized bed and the circulating fluidized bed also includes a slag pool 32, which is connected to the first reaction chamber 21 and the second reaction chamber 51. The slag pool 32 is used to collect the slag produced by the reaction of coke particles in the first reaction chamber 21 and the slag produced by the reaction of fine ash in the second reaction chamber 51, so as to release the volume of the first reaction chamber 21 and the second reaction chamber 51, and collect the slag in a unified manner.

The inventors realized that the entrained flow gasifier has high requirements for coal particle size. If the coal particle size is smaller, it is necessary to add a coal powder preparation system, thereby increasing the investment in equipment and systems. In addition, it is difficult to process solid fuels that are difficult to grind, such as biomass, petroleum coke and anthracite, which greatly limits the scope of use of entrained flow gasification technology.

Based on this, as shown in Figures 3, 4, 19 and 22, the gasification device disclosed in the embodiment of the present disclosure includes a burner 100, a pulverizer 6 and an entrained bed body 5, so as to achieve the coupling of the inclined rotating cone reactor and the entrained bed reactor.

The burner 100 has a combustion chamber 101 and an air inlet 102, an air outlet 132 and a slag outlet 162 connected to the combustion chamber 101. The combustion chamber 101 has an initial fuel, the air inlet 102 is suitable for introducing a gasifying agent into the combustion chamber 101, so that the initial fuel burns in the combustion chamber 101 to form coke particles and coal gas, the slag outlet 162 is suitable for discharging part of the coke particles in the combustion chamber 101, and the particle size of the coke particles is smaller than the particle size of the initial fuel, and the air outlet 132 is suitable for discharging the coal gas in the combustion chamber 101.

Specifically, the burner 100 can be used with an initial fuel size of ≤20 cm and a char particle size of <4 mm.

The pulverizer 6 is connected to the slag outlet 162 so that the coke particles in the combustion chamber 101 can enter the pulverizer 6. The pulverizer 6 is used to convert the coke particles into coke powder, and the particle size of the coke powder is smaller than that of the coke particles. Specifically, the particle size of the coal powder is less than 0.1 mm.

The fluidized bed body 5 has a second reaction chamber 51 , which is connected to the pulverizer 6 so that the coke powder in the pulverizer 6 can enter the second reaction chamber 51 and generate coal gas in the second reaction chamber 51 .

In the gasification device in which the inclined rotating cone and the fluidized bed reactor are coupled in the embodiment of the present disclosure, the initial fuel is burned in the combustion chamber 101 to generate coke particles and coal gas, the particle size of the coke particles is smaller than the particle size of the initial fuel so that the coke particles can enter the pulverizer 6 to be made into coke powder, and the particle size of the coke powder is smaller than the particle size of the coke particles so that the coke powder can enter the second reaction chamber 51 to react and generate coal gas. Therefore, the gasification device in which the inclined rotating cone and the fluidized bed reactor are coupled in the embodiment of the present disclosure can gradually crush the initial fuel to meet the particle size of the fuel required for the reaction in the fluidized bed body 5, thereby improving the carbon conversion rate of the initial fuel, widening the particle size range of the initial fuel, and reducing the cost of pretreatment and preparation of the initial fuel, thereby saving costs.

In addition, the gasification device coupled with the inclined rotating cone and the fluidized bed reactor of the embodiment of the present disclosure can be used for industrial gasification of biomass, urban garbage, high-water-content solid waste, petroleum coke, etc., which greatly expands the types of fuels for industrial gasification.

In some embodiments, the fluidized bed body 5 further has a second inlet 52 , which is located at the top of the fluidized bed body 5 and is connected to the second reaction chamber 51 . The second inlet 52 is used to introduce a gasifying agent into the second reaction chamber 51 .

Specifically, there are two second inlets 52, which are arranged at intervals on the top of the fluidized bed body 5. The gasifying agent in the second reaction chamber 51 and the coke powder in the second reaction chamber 51 undergo a gasification reaction to generate coal gas.

In some embodiments, a fourth heat exchanger 44 , a fifth heat exchanger 45 , and a sixth heat exchanger 46 are further included.

The fourth heat exchanger 44 is connected to the slag outlet 162 and the pulverizer 6. The fourth heat exchanger 44 has a refrigerant therein. The coke particles discharged from the slag outlet 162 perform heat exchange with the refrigerant in the fourth heat exchanger 44. Specifically, the refrigerant in the fourth heat exchanger 44 performs heat exchange with the coke particles to cool the coke particles, so that the temperature of part of the refrigerant in the fourth heat exchanger 44 increases. The part of the refrigerant with a higher temperature in the fourth heat exchanger 44 can heat the gasifying agent entering the combustion chamber 101 through the air inlet 102.

The fifth heat exchanger 45 is connected to the second reaction chamber 51 and the combustion chamber 101. The fifth heat exchanger 45 has a refrigerant. The coal gas discharged from the gas outlet 132 and the coal gas discharged from the second reaction chamber 51 are heat exchanged with the refrigerant in the fifth heat exchanger 45. Specifically, the fifth heat exchanger 45 has a first channel (not shown) and a second channel (not shown). The refrigerant in the fifth heat exchanger 45 is arranged in the first channel, and the second channel is connected to the combustion chamber 101 and the second reaction chamber 51. The coal gas in the combustion chamber 101 and the second reaction chamber 51 can be discharged into the second channel, so that the coal gas in the second channel is heat exchanged with the refrigerant in the first channel.

The sixth heat exchanger 46 is disposed in the second reaction chamber 51 and communicated with the fifth heat exchanger 45 . Part of the refrigerant after heat exchange in the fifth heat exchanger 45 enters the sixth heat exchanger 46 .

Specifically, the sixth heat exchanger 46 has a third channel (not shown) and a fourth channel (not shown). The third channel is connected to the first channel so that the refrigerant in the first channel that partially absorbs the heat of the coal gas can enter the third channel. The fourth channel has a refrigerant, and the temperature of the refrigerant in the fourth channel is higher than the temperature of the refrigerant in the third channel. Therefore, the refrigerant in the fourth channel exchanges heat with the refrigerant in the third channel to increase the temperature of the refrigerant in the third channel.

In some embodiments, the gasification device of the inclined rotating cone coupled with the fluidized bed reactor of the present disclosure also includes a raw material bin 35, which is suitable for storing initial fuel. The raw material bin 35 is connected to the combustion chamber 101 to provide initial fuel to the combustion chamber 101.

In some embodiments, the fourth heat exchanger 44 and the third channel are connected to the raw material bin 35, so that part of the higher temperature refrigerant in the fourth heat exchanger 44 and part of the higher temperature refrigerant in the third channel can enter the raw material bin 35 to heat the initial fuel, thereby increasing the temperature of the initial fuel in the raw material bin 35, reducing fly ash residual carbon, and increasing the carbon conversion rate.

In some embodiments, the refrigerant (cooling medium) includes but is not limited to water and air.

In some embodiments, the gasification device of the inclined rotating cone coupled with the fluidized bed reactor of the embodiment of the present disclosure further includes a bin pump 36 and a slag pool 32. The bin pump 36 connects the pulverizer 6 and the second reaction chamber 51, and the bin pump 36 is used to pass the coal powder in the pulverizer 6 into the second reaction chamber 51 to increase the rate at which the coal powder passes into the second reaction chamber 51, thereby improving the production efficiency of the fluidized bed body 5.

The slag pool 32 is connected to the second reaction chamber 51, and the slag pool 32 is used to collect the slag produced by the reaction of the coal powder in the second reaction chamber 51. Specifically, the entrained bed body 5 also has a second slag discharge port 54, which is located at the bottom of the entrained bed body 5 and is connected to the second reaction chamber 51, so that the slag produced by the reaction of the coal powder in the second reaction chamber 51 can be discharged into the slag pool 32 through the second slag discharge port 54, which can not only release the volume of the second reaction chamber 51, but also collect the slag uniformly.

In some embodiments, the gasification device coupled with the inclined rotating cone and the fluidized bed reactor of the embodiment of the present disclosure also includes a dust collector 33, and the dust collector 33 is connected to the silo pump 36 and the fifth heat exchanger 45. The dust collector 33 is used to remove fine ash carried in the coal gas discharged from the fifth heat exchanger 45, and return the removed fine ash to the silo pump 36, and then the silo pump 36 passes the fine ash and the pulverized coal in the pulverizer 6 into the second reaction chamber 51.

Specifically, the fine ash removed by the dust collector 33 enters the silo pump 36, and the silo pump 36 is connected to the second inlet 52 of the fluidized bed body 5, so that the fine ash can enter the second reaction chamber 51 together with the coal powder in the silo pump 36 to react.

In some embodiments, the burner 100 includes a rotating cone 121 and a secondary combustion chamber assembly 13 . The rotating cone 121 is connected to the secondary combustion chamber assembly 13 . The rotating cone 121 is rotatable relative to the secondary combustion chamber assembly 13 . A gap 163 is defined between the rotating cone 121 and the secondary combustion chamber assembly 13 .

The burner 100 further comprises a fuel inlet 1313 , which is connected to the secondary combustion chamber assembly 13 through the gas outlet 132 . The fuel inlet 1313 is used to introduce initial fuel into the secondary combustion chamber assembly 13 . The slag outlet 162 is connected to the rotating cone 121 .

The air inlet 102 includes an air supply port 1021 and a first air inlet 1317 . The air supply port 1021 is communicated with the rotating cone 121 , and the first air inlet 1317 is communicated with the secondary combustion chamber assembly 13 .

Specifically, the air supply port 1021 is provided at the bottom of the rotating cone 121, and the first gasifying agent is introduced into the rotating cone 121 through the air supply port 1021. The first air inlet 1317 is provided at the top of the secondary combustion chamber assembly 13, and the second gasifying agent is introduced into the secondary combustion chamber assembly 13 through the first air inlet 1317. The second gasifying agent in the secondary combustion chamber assembly 13 enters the secondary combustion chamber assembly 13 from the top of the secondary combustion chamber assembly 13 and descends into the rotating cone 121.

The fuel in the rotating cone 121 contacts the gasifying agent under the combined action of the rotating cone 121, the flow of the first gasifying agent and the swirling stirring of the second gasifying agent, rapidly heats up, tumbles continuously, and reacts on multiple surfaces, thereby improving the carbon conversion rate of the initial fuel.

In some embodiments, the rotating cone 121 includes a support ring 1217, a support arm 1218, a grate (not shown), a cone top 1219, and a grate hanging rod 1220. There are multiple support rings 1217, and the multiple support rings 1217 are arranged at intervals in the up and down direction, and the central axes of the multiple support rings 1217 are collinear, and the cross-sectional area of the support ring 1217 gradually decreases in the downward direction. The support arm 1218 is provided on the support ring 1217, and there are multiple support arms 1218, and the multiple support arms 1218 are arranged around the outer wall surface of the support ring 1217 at intervals.

Specifically, the support ring 1217 includes at least two support sub-segments (not shown) to prevent thermal expansion due to high temperature during operation.

A combustion chamber is formed between the support ring 1217 and the support arm 1218, and the initial fuel is arranged in the combustion chamber. A first gap 125 is formed between the support ring 1217 and the support arm 1218.

There are multiple grate rods 1220, which are divided into multiple groups. The multiple groups of grate rods 1220 are arranged at intervals in the up and down direction, and the multiple groups of grate rods 1220 are alternately arranged with the multiple support rings 1217, and each group of grate rods 1220 includes at least one grate rod 1220. There are multiple grates, which are detachably mounted on the grate rods 1220 to prevent high-temperature thermal expansion during operation.

Specifically, the grate has a second gap (not shown), and the diameter of the second gap is no more than 1 cm, so that the coke particles generated after the initial fuel in the combustion chamber undergoes pyrolysis reaction can leak out from the second gap and the first gap 125 .

The cone top 1219 is arranged on the uppermost support ring 1217 , and the cone top 1219 is connected to the secondary combustion chamber assembly 13 .

In some embodiments, the secondary combustion chamber assembly 13 has a second chamber 1318, an outer shell 133 and an inner shell 134. The outer shell 133 is arranged around the inner shell 134, and a cooling chamber 1351 is provided between the outer shell 133 and the inner shell 134. The second chamber 1318 is formed in the inner shell 134, and the cross-sectional area of the inner shell 134 gradually increases in the oblique downward direction. The fuel inlet 1313 is formed on the secondary combustion chamber assembly 13, and the fuel inlet 1313 is connected to the second chamber 1318, and the initial fuel is introduced into the second chamber 1318 through the fuel inlet 1313. The first air inlet 1317 is provided at the top of the secondary combustion chamber assembly 13, and the second gasification agent introduced into the secondary combustion chamber assembly 13 through the first air inlet 1317 spirally descends from the top of the secondary combustion chamber assembly 13 into the rotating cone 121. The second chamber 1318 and the combustion chamber form the combustion chamber 101.

The pyrolysis gas or gasification gas generated by the reaction of the initial fuel in the rotating cone 121 is sucked into the second chamber 1318 of the secondary combustion chamber assembly 13 under the negative pressure generated by the strong cyclone of the second gasifier. The unburned carbon and fly ash contained in the gas are centrifuged under the cyclone, collide with the inner shell 134 of the second chamber 1318, fall, and are separated from the gas.

In some embodiments, the central axis of the rotating cone 121 has an angle α with the horizontal, 35°≤α≤45°,

The included angle between the central axis of the secondary combustion chamber assembly 13 and the horizontal is β, 35°≤β≤45°, and the angle difference between α and β is less than 10°.

In some embodiments, the inclined rotating cone 121 reactor and circulating fluidized bed coupled gasification device further includes a crushing member disposed in the rotating cone 121 to crush part of the initial fuel in the rotating cone 121 into coke particles having a particle size of less than or equal to 1 cm.

Specifically, the crushing piece is a high temperature resistant heavy ball. The crushing piece is arranged in the rotating cone 121 to crush the initial fuel in the rotating cone 121 that is large in size, slow in reaction and difficult to crush, thereby improving the contact between the gasifying agent and the initial fuel and improving the carbon conversion rate of the initial fuel.

In some embodiments, the gasification device coupled with the inclined rotating cone and the fluidized bed reactor of the embodiment of the present disclosure also includes a slag discharge assembly 16, which is arranged around the outer wall surface of the rotating cone 121. The slag discharge assembly 16 is connected to the gap 163 so that part of the initial fuel in the rotating cone 121 can fall into the slag discharge assembly 16 through the gap 163. The slag discharge port 162 is connected to the slag discharge assembly 16, and the fuel in the slag discharge assembly 16 is discharged into the second reaction chamber 51 through the slag discharge port 162.

Specifically, the slag outlet 162 is formed on the slag outlet assembly 16, and the slag outlet 162 is connected to the slag outlet assembly 16 and the fourth heat exchanger 44, so that the fuel in the slag outlet assembly 16 enters the fourth heat exchanger 44 through the slag outlet 162 for cooling. Part of the fuel dropped from the first gap 125 and the second gap and the unburned carbon and fly ash sucked into the second combustion chamber assembly 13 by the second gasification agent and separated from the gas can fall into the slag outlet assembly 16 through the gap 163.

In some embodiments, the slag discharge assembly 16 includes a screw conveying shaft 161 , which is disposed in the slag discharge assembly 16 and is rotatable relative to the slag discharge assembly 16 . The screw conveying shaft 161 can convey the fuel in the slag discharge assembly 16 to the slag discharge port 162 .

Specifically, the slag discharge assembly 16 has a collection chamber 167, and the collection chamber 167 is connected to the gap 163. The screw conveying shaft 161 is arranged in the collection chamber 167. The screw conveying shaft 161 includes a rod 164, a rotating member 165 and a driving member 166. The rotating member 165 is arranged on the rod 164 and spirally rises along the length direction of the rod 164. The rotating member 165 can carry fuel, and the driving member 166 is connected to the rod 164 to drive the rod 164 to rotate. When in use, the driving member 166 is turned on, and the driving member 166 drives the rod 164 to rotate, so that the rotating member 165 carries the fuel in the collection chamber 167 to the slag discharge port 162, thereby facilitating the fuel in the collection chamber 167 to be discharged from the collection chamber 167.

In some embodiments, the gasification device of the inclined rotating cone coupled with the fluidized bed reactor of the disclosed embodiment further includes a waste heat recovery device 341, a desulfurizer 342 and a gas station 343. The dust collector 33, the waste heat recovery device 341, the desulfurizer 342 and the gas station 343 are sequentially connected, so that the coal gas passing through the dust collector 33 is cooled by the waste heat recovery device 341, desulfurized by the desulfurizer 342, and finally enters the gas station 343.

The inventors realize that the garbage generated in human daily life or industrial production is large in quantity and complex in composition. If it is not properly handled, it will seriously pollute the environment. At present, incineration is an effective way to dispose of garbage. After the garbage is treated by incineration, the volume reduction effect is significant.

In the related technologies, due to the complex composition of garbage or the imperfect garbage incineration process, each process of garbage incineration is prone to discharge dioxins, causing serious chemical hazards.

Based on this, as shown in FIG23 , the garbage incineration treatment system provided by the embodiment of the present disclosure includes a burner 100, a flue gas treatment unit 7 and an ash bin 8. Specifically, the burner 100 has a feed port for inputting garbage, a slag port for discharging incineration ash and an air outlet for discharging incineration flue gas, the flue gas treatment unit 7 includes a waste heat recovery component 71 and a second purification component 72, the air inlet of the waste heat recovery component 71 is connected to the air outlet of the burner 100, and the waste heat recovery component 71 can recover the heat of the incineration flue gas, the air inlet of the second purification component 72 is connected to the air outlet of the waste heat recovery component 71, and the second purification component 72 can purify the incineration flue gas, the feed port of the ash bin 8, the slag ports of the waste heat recovery component 71 and the second purification component 72 are all connected, and the outlet of the ash bin 8 is connected to the feed port of the burner 100.

It should be noted that dioxins generated during the waste incineration process are easily attached to the ash generated by the combustion or mixed in the flue gas generated by the combustion. Random discharge of these dioxin-containing ash or flue gas will cause serious chemical hazards. In the waste incineration system disclosed in the present invention, the ash generated by each process in the waste incineration process, such as the slag discharged by the burner 100, the ash deposited on the heating surface of the waste heat recovery component 71, and the residue generated by the second purification component 72 during the flue gas purification process, can be uniformly collected in the ash collecting bin 8, and then re-input into the burner 100 by the ash collecting bin 8 for "secondary" incineration treatment. As a result, the dioxins contained in the ash will be decomposed by high temperature, thereby minimizing the amount of dioxin emissions and avoiding chemical pollution.

Preferably, the waste incineration treatment system also includes a water treatment unit 9, the water inlet of the water treatment unit 9 is connected to the drain outlet of the waste heat recovery component 71 and the second purification component 72, and the water treatment unit 9 can purify the waste water discharged from the waste heat recovery component 71 and the second purification component 72.

It is understandable that the wastewater generated during the flue gas waste heat recovery and flue gas purification process may contain acid ions, volatile heavy metal elements, etc. The water treatment unit 9 can perform deacidification and heavy metal precipitation treatment on the wastewater. Thus, the treated wastewater can be reused, for example, for greening of garbage treatment plant areas, cleaning of garbage trucks, replenishment of waste heat boilers 711, flue gas purification spraying, etc., to reduce the operating costs of garbage treatment.

According to the waste incineration treatment system of the embodiment of the present disclosure, the flue gas treatment unit includes a waste heat recovery component and a second purification component. The air inlet of the waste heat recovery component is connected to the air outlet of the burner, and the waste heat recovery component can recover the heat of the incineration flue gas. The air inlet of the second purification component is connected to the air outlet of the waste heat recovery component, and the second purification component can purify the incineration flue gas. The feed port of the ash collecting bin, the waste heat recovery component and the slag material port of the second purification component are all connected, and the discharge port of the ash collecting bin is connected to the feed port of the burner. Therefore, the ash generated by each process of the waste incineration treatment, including the slag discharged from the burner, the ash deposited on the heating surface of the waste heat recovery component, the residue generated by the second purification component during the flue gas purification process, etc., can be uniformly collected in the ash collecting bin, and then re-input into the burner from the ash collecting bin for "secondary" incineration treatment, so that the dioxins contained in the ash will be decomposed by high temperature, thereby minimizing the emission of dioxins and avoiding the formation of chemical pollution.

Further, as shown in Figure 25, the feed port of the burner 100 includes a fuel inlet 1313 and a powdered fuel inlet 1224. The fuel inlet 1313 can input block garbage into the burner 100, and the powdered fuel inlet 1224 can input powdered garbage into the burner 100. The discharge port of the ash bin 8 is connected to the powdered fuel inlet 1224.

In other words, different feed ports are used when the ash collected in the ash bin 8 and the block garbage are input into the burner 100, thereby avoiding the mixing of powdered ash and block garbage. The ash can enter the burner 100 alone for secondary combustion, ensuring that the dioxins in the ash can be fully decomposed.

Preferably, the slag outlet of the burner 100 is connected to the feed port of the ash collecting bin 8 through the pulverizer 81, so that the slag discharged from the burner 100 can be crushed by the pulverizer 81 and then discharged into the ash collecting bin 8, ensuring that the ash in the ash collecting bin 8 is powdery, avoiding blockage when the ash enters the powder fuel inlet 1224 from the ash collecting bin 8.

Furthermore, as shown in FIG. 25 , the feed port of the burner 100 further includes a nozzle 1314, which can inject garbage into the burner 100. Therefore, the garbage incineration treatment system disclosed in the present invention can be used to treat the garbage leachate generated by garbage accumulation, avoiding the addition of other sewage treatment equipment in the garbage treatment plant and reducing the garbage treatment cost.

Preferably, the nozzle 1314 can use a spray device to spray the landfill leachate into the burner 100 for treatment, so that the burner 100 can heat the landfill leachate at high temperature to promote the high-temperature decomposition of organic matter or toxic and harmful substances in the landfill leachate.

Furthermore, as shown in FIG. 25 , a garbage pre-processing unit 10 is further included, wherein the solid discharge port of the garbage pre-processing unit 10 is connected to the fuel inlet 1313 , and the liquid discharge port of the garbage pre-processing unit 10 is connected to the nozzle 1314 .

In other words, the garbage pretreatment unit 10 can separate the bulk garbage from the garbage leachate, and input the bulk garbage into the burner 100 through the fuel inlet 1313, and input the garbage leachate into the burner 100 through the nozzle 1314, so that the two types of garbage enter the burner 100 independently for combustion, avoiding the mixing and combustion of the garbage leachate and the garbage, which affects the efficiency of the garbage incineration treatment.

Further, as shown in FIG. 25 , the waste heat recovery assembly 71 includes a waste heat boiler 711 , an air inlet of the waste heat boiler 711 is connected to an air outlet of the burner 100 , and a slag port of the waste heat boiler 711 is connected to a feed port of the ash collecting bin 8 .

It can be understood that the waste heat boiler 711 can use the heat in the flue gas discharged by the burner 100 to heat water to a certain temperature for use in other work sections. During this process, the smoke in the flue gas will gradually settle on the heating surface of the waste heat boiler 711. Therefore, the waste heat boiler 711 needs to be cleaned regularly, and the waste incineration treatment system disclosed in the present invention can use the ash collection bin 8 to collect the smoke cleaned out by the waste heat boiler 711, thereby avoiding the direct discharge of dioxins in this part of the smoke to pollute the environment.

Furthermore, as shown in Figure 25, the waste heat recovery component 71 also includes a gas-solid separator 712, a quenching tower 713 and a seventh heat exchanger 714. The air inlet of the gas-solid separator 712 is connected to the air outlet of the waste heat boiler 711, the air outlet of the gas-solid separator 712 is connected to the air inlet of the quenching tower 713, the slag port of the gas-solid separator 712 is connected to the feed port of the ash collecting bin 8, and the water outlet of the quenching tower 713 is connected to the heat source chamber of the seventh heat exchanger 714.

It should be noted that after being processed by the waste heat boiler 711, the flue gas temperature discharged by the burner 100 generally becomes about 400°C. In order to further utilize the waste heat in the flue gas, the waste incineration treatment system disclosed in the present invention is also equipped with a gas-solid separator 712, a quenching tower 713 and a seventh heat exchanger 714. The gas-solid separator 712 can separate the smoke dust in the flue gas and discharge it into the ash collecting bin 8 for centralized treatment, while the quenching tower 713 can condense the remaining flue gas discharged by the gas-solid separator 712, and then discharge the collected condensate into the heat source chamber of the seventh heat exchanger 714, so that the heat in the condensate can be transferred to the cold source chamber of the seventh heat exchanger 714 for utilization, thereby improving the flue gas waste heat recovery rate of the waste incineration treatment system disclosed in the present invention.

It should be noted that the optimal temperature range for the dioxin generation reaction is 250-350°C, and in the waste incineration treatment system disclosed in the present invention, the temperature of the combustion flue gas can be quickly changed from about 400°C to below 250°C in the quench tower 713, thereby effectively preventing the generation of dioxins.

Further, as shown in FIG. 25 , the cold source chamber of the seventh heat exchanger 714 is suitable for introducing normal temperature gas, and the outlet of the cold source chamber is connected to the powder fuel inlet 1224 and/or the nozzle 1314 .

It can be understood that the ash from the powder fuel inlet 1224 or the leachate from the nozzle 1314 can be mixed with the high-temperature gas discharged from the cold source chamber. Thus, the high-temperature gas can preheat the ash or atomize the leachate at high temperature, thereby improving the treatment efficiency of the ash and leachate.

Furthermore, as shown in FIG. 25 , the second purification component 72 includes a denitrification tower 721 and a desulfurization tower 722 , the air inlet of the denitrification tower 721 is connected to the air outlet of the quenching tower 713 , and the air inlet of the desulfurization tower 722 is connected to the air outlet of the denitrification tower 721 .

It is understandable that after the condensation treatment in the quench tower 713, the flue gas discharged from the burner 100 is composed of pure gas. This part of the gas needs to be desulfurized and denitrified before it can be discharged into the atmosphere, thereby improving the environmental friendliness of the waste incineration treatment system disclosed in the present invention.

Furthermore, as shown in Figure 25, the second purification component 72 also includes an adsorption tower 723, the air inlet of the adsorption tower 723 is connected to the air outlet of the desulfurization tower 722, the slag port of the adsorption tower 723 is connected to the feed port of the ash collecting bin 8, and the air outlet of the adsorption tower 723 leads to the chimney.

It should be noted that activated carbon is generally added to the adsorption tower 723 to absorb dioxins mixed in the combustion flue gas, and the activated carbon adsorbing dioxins can be discharged to the burner 100 through the ash collecting bin 8 for combustion treatment, thereby further reducing the amount of dioxin emissions.

Furthermore, as shown in Figure 25, the waste incineration treatment system also includes a gasifier 82, the feed port of the gasifier 82 is connected to the discharge port of the ash collecting bin 8, the air inlet of the gasifier 82 is connected to the outlet of the cold source chamber, and the discharge port of the gasifier 82 is connected to the powder fuel inlet 1224.

It should be noted that the activated carbon powder that adsorbs pollutants, the fly ash regularly cleaned from the waste heat boiler 711, and the fly ash separated from the gas-solid separator 712 have a high carbon content. The gasifier 82 can mix this part of the ash with the high-temperature gas discharged from the seventh heat exchanger 714 to produce coal gas. When the gasifier 82 passes the coal gas into the powder fuel inlet or nozzle, the coal gas with higher flammability can be mixed with the ash and leachate, thereby improving the treatment efficiency of the ash and leachate.

In the present disclosure, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present disclosure.

Claims (42)

A burner, characterized by comprising: chassis; A combustion cone assembly, the combustion cone assembly is connected to the housing, the combustion cone assembly has a rotating cone, the rotating cone is rotatably disposed in the housing and has a first chamber; The second combustion chamber assembly comprises a second chamber, wherein the second chamber is communicated with the first chamber. The burner according to claim 1, characterized in that the combustion cone assembly further comprises a powder fuel inlet pipe, one end of the powder fuel inlet pipe is located outside the casing, and the other end extends into the first chamber; The secondary combustion chamber assembly includes a first cone and a second cone, the first cone is penetrated on the casing, and the part of the first cone located outside the casing is provided with a fuel inlet connected to the second chamber, the second cone is connected to an end of the first cone away from the casing, and the second cone is provided with a nozzle connected to the second chamber, and the nozzle is suitable for spraying leachate into the second chamber. The burner according to claim 2, characterized in that the cross section of the second chamber of the first cone gradually decreases in a direction away from the casing, and the cross section of the second chamber of the second cone gradually increases in a direction away from the casing; and/or The secondary combustion chamber assembly is further provided with a first igniter and a second igniter, wherein the first igniter is arranged in the first cone and adjacent to the fuel inlet, and the second igniter is arranged in the second cone and adjacent to the nozzle; and/or The central axis of the powder fuel inlet pipe is collinear with the midline axis of the rotating cone; and/or The outer wall of the part of the powder fuel inlet pipe located in the first chamber is provided with an air hole, the powder fuel inlet pipe comprises an inner tube and an outer tube, the outer tube spacer ring is arranged on the outer side of the inner tube and forms a cold air cavity with the inner tube, the cold air cavity has a cold air inlet at one end located outside the casing, and both the inner tube and the outer tube have the air hole. The burner according to claim 1, characterized in that the first chamber contains an initial fuel and an oxidant, and the initial fuel and the oxidant burn in the first chamber; The burner comprises a secondary combustion chamber assembly and a bubbling bed; The secondary combustion chamber assembly has a first air inlet, the first air inlet is in communication with the second chamber, and the first air inlet is suitable for introducing an oxidant into the second chamber; There is a gap between the first chamber and the second chamber, and the gap is connected to the first chamber and the second chamber. The combustible gas, fine ash and fine unburned fuel particles generated by the initial fuel combustion in the first chamber are carried out of the first chamber and into the second chamber by the swirl formed by the combustion-supporting agent entering from the first air inlet. Some of the fine ash and fuel particles collide with the inner wall surface of the second chamber, stall and fall from the gap. A bubbling bed, wherein the bubbling bed has a third chamber, wherein the third chamber contains a combustion aid, wherein the third chamber is connected to the gap, the first chamber, and the second chamber, wherein part of the fine ash and fuel particles dropped from the second chamber and part of the fuel particles in the first chamber enter the third chamber and are burned in the third chamber. The burner according to claim 4 is characterized in that the bubbling bed also has a second air inlet and a slag outlet, the second air inlet and the slag outlet are connected to the third chamber, the second air inlet is suitable for introducing a combustion aid into the third chamber so that the fuel particles in the third chamber can burn in the third chamber, and the slag outlet is suitable for discharging slag produced by the combustion of the combustion particles in the third chamber. The burner according to claim 5 is characterized in that the third chamber has a wind chamber, the wind chamber is arranged at the bottom of the third chamber and is connected with the second air inlet, the second air inlet is suitable for introducing an oxidant into the wind chamber, and the top of the wind chamber has a wind hood, the wind hood connects the wind chamber and the third chamber so that the oxidant in the wind chamber enters the third chamber through the wind hood. The burner according to claim 6 is characterized in that the top surface of the wind chamber is arranged at an angle, and the top surface of the wind chamber extends downwardly from one end to the other end, one end of the top surface of the wind chamber is adjacent to the second air inlet, and the other end of the top surface of the wind chamber is adjacent to the slag outlet. The burner according to any one of claims 4 to 7, characterized in that the bubbling bed further has an observation hole, the fuel particles in the third chamber are burned in the third chamber to generate a bed layer, and the observation hole is used to observe the thickness of the bed layer; and/or The size of the gap in the first direction is 1 cm to 5 cm; and/or The rotating cone comprises a grate, and there are at least two of the grate, and at least two of the grate are arranged at intervals along a first direction, and there is a gap between adjacent grate, and the size of the gap in the first direction is 1 cm to 2 cm, and the gap is connected to the third chamber, and the fuel particles in the first chamber can fall into the third chamber through the gap; and/or The rotating cone further comprises a first port, the first port being connected to the first chamber and the gap, the rotating cone further comprising crushing teeth, the crushing teeth being arranged on a wall surface of the first port adjacent to the gap and spaced along the circumference of the first port, the crushing teeth being used to crush fuel particles in the gap; and/or The outer wall surface of the rotating cone has a hollow wall, and the hollow wall contains a combustion aid. The outer wall surface of the rotating cone has a through hole, and the through hole is connected to the first chamber. The combustion aid in the hollow wall enters the first chamber through the through hole. The burner according to any one of claims 1 to 8, characterized in that the secondary combustion chamber assembly comprises: A combustion chamber body, the combustion chamber body comprising an inner shell and an outer shell, the outer shell having a fourth chamber, the inner shell being connected to the outer shell and disposed in the fourth chamber, and a cooling chamber being defined between an outer circumferential wall of the inner shell and an inner circumferential wall of the outer shell; Refractory mud, the refractory mud is laid on the outer peripheral wall of the inner shell; A cooling assembly, the cooling assembly comprising at least one cooling pipe, the cooling pipe being arranged on the peripheral wall of the refractory mud, and the The cooling pipe is suitable for passing cooling liquid to cool the refractory mud. The burner according to claim 9, characterized in that the cooling pipe is spiral-shaped and arranged around the inner shell. The burner according to claim 10, characterized in that there is one cooling pipe, the inner shell has a first end and a second end in its extension direction, one end of the cooling pipe is adjacent to the first end of the inner shell, the other end of the cooling pipe is adjacent to the second end of the inner shell, and the first end and the second end of the cooling pipe are located on different sides of the inner shell in the circumferential direction; or There are a plurality of cooling pipes, the plurality of cooling pipes are arranged at intervals along the extension direction of the inner shell, the inner shell has a first end and a second end in the extension direction thereof, one end of at least one cooling pipe among the plurality of cooling pipes is adjacent to the first end of the inner shell, and the other end of at least one cooling pipe among the plurality of cooling pipes is adjacent to the second end of the inner shell; and/or The ratio of the pitch of the cooling pipe to the pipe diameter of the cooling pipe is greater than or equal to 1 and less than or equal to 2; and/or The cooling pipe further comprises a conveying assembly, wherein the cooling pipe has a liquid inlet and a liquid outlet, and the conveying assembly is used to be connected to the liquid inlet so as to pass the coolant into the cooling pipe, and the conveying assembly can control the flow rate of the coolant in the cooling pipe to be greater than or equal to 1m/s and less than or equal to 10m/s; and/or It also includes a secondary air box, which is used to communicate with the inner shell so as to ventilate the inner shell. The burner according to any one of claims 1 to 11, characterized in that the burner further comprises a feeding device, the burner has a fuel inlet, the feeding device is connected to the fuel inlet, and the feeding device comprises: A feed pipe, the feed pipe having a feed channel; A feeding assembly, wherein the feeding assembly includes a plurality of flaps, wherein the plurality of flaps are arranged at intervals in the feeding channel along the length direction of the feeding pipe, and the flaps have an open position and a closed position relative to the feeding pipe, wherein the flaps can block the feeding channel in the closed position, and the flaps can connect the feeding channel in the open position, and when one of the plurality of flaps is in the open position, at least one of the remaining flaps is in the closed position. The burner according to claim 12 is characterized in that the flap is rotatably connected to the feed pipe via a rotating shaft, the rotating shaft is penetrated in the feed pipe along the radial direction of the feed pipe and the axis of the rotating shaft is orthogonal to the central axis of the feed pipe. The burner according to claim 13, characterized in that the flap is an arc-shaped plate, the arc-shaped plate comprises a first arc-shaped plate and a second arc-shaped plate, the convex direction of the first arc-shaped plate is opposite to the convex direction of the second arc-shaped plate, and the first arc-shaped plate and the second arc-shaped plate are both connected to the rotating shaft and are symmetrical about the center of the rotating shaft; and/or A cutting head is arranged on the side of the flap parallel to the axis of the rotating shaft. The burner according to any one of claims 12 to 14, characterized in that the feed pipe comprises a plurality of pipe sections that are detachably connected in sequence, and the plurality of flaps are arranged in a one-to-one correspondence in the plurality of pipe sections; and/or The outer wall of the feed pipe is provided with a plurality of reinforcing plates arranged at intervals along the length direction of the feed pipe, the plurality of reinforcing plates correspond to the plurality of flaps one by one, and in the closed position, the outer wall of the contact position between the flap and the feed pipe is provided with corresponding reinforcing plates; and/or The rotation phase difference between adjacent flaps is 90°; and/or There is a spacing distance L between the edge of the flap and the inner wall of the feed pipe, which satisfies: 0.2mm≤L≤0.4mm. The burner according to any one of claims 1 to 15, characterized in that the burner comprises a combustion-supporting device, the combustion-supporting device is arranged in the first chamber, and the combustion-supporting device comprises: A first spherical body, wherein the first spherical body has a fifth chamber, wherein the fifth chamber is used to place a heat storage object, and the first spherical body includes a counterweight portion, wherein the counterweight portion of the first spherical body is located at the bottom of the first spherical body; A first counterweight, which is disposed in the fifth chamber and located at the counterweight portion of the first spherical body, so that the center of gravity of the combustion-supporting device is located below the center of the combustion-supporting device; and The first crushing member is arranged on the outer peripheral surface of the first spherical body, and the first crushing member has a tip portion, and the tip portion is arranged on a side of the first crushing member away from the first spherical body. The burner according to claim 16, characterized in that the first spherical body is an ellipsoidal body or an egg-shaped body; and/or The first counterweight is a sphere, and the first counterweight is made of stainless steel; and/or The first crushing member is annular and is sleeved on the outer circumference of the first spherical body; and/or There are a plurality of the first crushing members, and the plurality of the first crushing members are arranged at intervals along the circumference of the first spherical body; and/or It also includes a first limit member, which is arranged in the fifth chamber and connected to the peripheral wall of the fifth chamber. The first limit member is arranged below the top of the counterweight portion of the first spherical body to prevent the first counterweight member from moving from the counterweight portion of the first spherical body to above the counterweight portion of the first spherical body. The burner according to any one of claims 1 to 17, characterized in that the burner comprises a decoking device, the decoking device is arranged in the first chamber, and the decoking device comprises: a second spherical body, wherein the second spherical body has a sixth chamber, wherein the sixth chamber is used to place a decoking agent, and the second spherical body comprises a counterweight portion and a swing portion, wherein the counterweight portion and the swing portion of the second spherical body are arranged opposite to each other along a height direction of the second spherical body, The second spherical body further has a feed hole and a discharge hole, wherein the feed hole is provided at the counterweight portion of the second spherical body and communicates with the sixth chamber, so that the decoking agent is placed in the sixth chamber through the feed hole, and the discharge hole is provided at the swinging portion and communicates with the sixth chamber, the diameter of the discharge hole is adapted to the size of the decoking agent, and the radial direction of the discharge hole forms an angle with the thickness direction of the wall surface of the second spherical body; a second counterweight, the second counterweight being arranged in the sixth chamber and located at the counterweight portion of the second spherical body; The center of gravity of the second spherical body is located below the center of the coke cleaning device in the height direction of the second spherical body, and the second counterweight is suitable for blocking the feed hole. The burner according to claim 18, characterized in that the angle formed by the radial direction of the discharge hole and the thickness direction of the wall surface of the second spherical body is greater than or equal to 0 degrees and less than 90 degrees; and/or There are a plurality of the discharge holes, and the plurality of the discharge holes are arranged at intervals along the circumference of the second spherical body; and/or The decoking device further comprises a plurality of second crushing members, the plurality of second crushing members are arranged at intervals along the circumference of the second spherical body, the second crushing members are arranged on the outer circumference of the second spherical body, the second crushing members have a tip portion, and the tip portion is arranged on a side of the second crushing member away from the second spherical body; and/or The decoking device further comprises a second stopper, the second stopper being arranged in the sixth chamber and connected to the peripheral wall of the sixth chamber, the second stopper being arranged below the top of the counterweight portion of the second spherical body to prevent the second counterweight portion from moving from the counterweight portion of the second spherical body to the swinging portion; and/or The second spherical body is an egg-shaped body. The burner according to any one of claims 1 to 19, characterized in that the central axis of the rotating cone is inclined upward in a direction away from the horizontal plane, and the rotating cone has an air inlet cavity; The burner includes an air distribution assembly, which includes a plurality of exhaust fins arranged along the circumference of the rotating cone, the exhaust fins having a plurality of exhaust cavities arranged along the length direction thereof, the exhaust cavity having a first air inlet hole and a first air outlet hole, the air inlet cavity being connected to the exhaust cavity via the first air inlet hole, the first chamber being connected to the exhaust cavity via the first air outlet hole, and an anti-blocking block being provided in the exhaust cavity, the rotation of the rotating cone can drive the anti-blocking block to move in the exhaust cavity, and the movement of the anti-blocking block can open or close the first air outlet hole. The burner according to claim 20, characterized in that the exhaust fins extend in a direction close to the central axis, and the exhaust fins are inclined toward the rotation direction of the rotating cone; and/or The rotating cone includes a plurality of gas pipes arranged along its circumference, the gas pipes having a plurality of gas holes arranged along its length direction, the gas holes being connected to the first air inlet hole, the rotating cone also includes a plurality of hoops arranged at intervals along the extension direction of its central axis, the hoops surrounding the outer circumference of the plurality of gas pipes, the burner also includes an air inlet assembly, the air inlet assembly being connected to the plurality of gas pipes to supply air to the gas pipes. The burner according to any one of claims 1 to 21, characterized in that the housing is provided with an assembly hole, the burner comprises an air supply device, the air supply device is used to supply air to the first chamber, and the air supply device comprises: An air distribution component, the air distribution component comprises an air distribution box and a plurality of air outlet pipes, the air distribution box is rotatably mounted at the assembly hole and is partially located in the casing, the side of the air distribution box facing the inside of the casing has a plurality of mounting holes arranged at intervals along its circumference, the side of the air distribution box located outside the casing has an opening opposite to the mounting holes, the plurality of air outlet pipes are correspondingly penetrated in the plurality of mounting holes and one end thereof extends into the casing to communicate with the first chamber, and the other end is fitted in the air distribution box; An air supply component, the air supply component includes an air distribution plate and a bellows, the air distribution plate is rotatably mounted at the opening, and the air distribution plate has a plurality of air distribution holes arranged at intervals along its circumference, the plurality of air distribution holes are opposite to the plurality of air outlet pipes, the bellows is located on a side of the air distribution box away from the housing, and the bellows has a plurality of air inlet pipes connected to the air distribution holes, a pressing piece is provided between the bellows and the air distribution plate, one end of the pressing piece stops at the air distribution plate, and the other end stops at the bellows; An adjusting member, the adjusting member includes an adjusting rod and a third limiting member, the adjusting rod passes through the bellows and the air distribution disk in sequence and is connected to the bellows, the third limiting member is arranged on the adjusting rod and stops at a side of the bellows away from the air distribution disk, and the third limiting member is movable along the length direction of the adjusting rod and can be self-locked on the adjusting rod after the movement is completed. The burner according to claim 22, characterized in that the adjusting rod is a threaded rod, and the third limiting member is a limiting nut; and/or The pressing member is a pressing spring, there are multiple pressing springs, the multiple pressing springs correspond to at least part of the multiple intake pipes one by one, and the pressing springs are sleeved on the corresponding intake pipes; and/or The outer peripheral edge of the opening has a mounting groove that is recessed toward the housing, the air distribution disc is embedded in the mounting groove, and a sealing member is provided between the air distribution disc and the mounting groove; and/or It also includes a hoop plate, which connects multiple air outlet pipes in sequence along the circumference of the air distribution box to form an air outlet hood. A slag discharge plate is provided in the air outlet hood, and the slag discharge plate is connected to the air outlet pipe, and the adjusting rod is connected to the slag discharge plate. The burner according to any one of claims 1 to 23 is characterized in that it also includes a slag discharge assembly, the slag discharge assembly includes a screw conveying shaft and a driving member, the casing has a collecting chamber for installing the screw conveying shaft, the collecting chamber is connected to the first chamber, and the collecting chamber has a slag discharge port, the driving member can drive the screw conveying shaft to rotate, and the rotation of the screw conveying shaft can transport the ash discharged from the first chamber to the slag discharge port for discharge. A gasification device, characterized by comprising the burner according to any one of claims 1 to 24. The gasification device according to claim 25, characterized in that it comprises: A burner, the burner having a combustion chamber, an air inlet, an air outlet, a fuel inlet and a slag outlet, the air inlet, the air outlet and the slag outlet being in communication with the combustion chamber, the combustion chamber having an initial fuel and crushing the initial fuel, the air inlet being suitable for introducing a gasifying agent into the combustion chamber so that the initial fuel burns in the combustion chamber to form coke particles and coal gas, the slag outlet being suitable for discharging the coke particles in the combustion chamber, and the air outlet being suitable for discharging the coal gas in the combustion chamber; A fluidized bed body, wherein the fluidized bed body is connected to the slag outlet, and the coke particles in the combustion chamber can enter the fluidized bed body through the slag outlet to react and generate coal gas; a separator, the separator is connected to the fluidized bed body, the separator is used to separate the coarse ash carried in the coal gas and return the coarse ash to the fluidized bed body for further reaction; a first heat exchanger, the first heat exchanger is connected to the combustion chamber and the separator, The first heat exchanger contains a refrigerant, which performs heat exchange with the coal gas in the combustion chamber and the coal gas in the separator. The gasification device according to claim 26 is characterized in that the fluidized bed body has a first reaction chamber, a first feed port and a first slag discharge port, the first reaction chamber is connected to the slag discharge port, the coke particles in the combustion chamber react in the first reaction chamber, the first feed port and the first slag discharge port are connected to the first reaction chamber, the first feed port is located at the bottom of the first reaction chamber, the first feed port is used to introduce coke particles into the first reaction chamber, and the first slag discharge port is suitable for discharging slag produced after the coke particles react in the first reaction chamber; and/or It also includes a dust collector and a first purification component, the dust collector is connected to the first heat exchanger, the dust collector is used to remove fine ash in the coal gas discharged from the first heat exchanger, and the removed fine ash is returned to the combustion chamber to be mixed with the initial fuel, the first purification component is connected to the dust collector, and the first purification component is used to purify the coal gas discharged from the dust collector; and/or It also includes a slag pool, which is connected to the first slag discharge port and is used to collect slag in the first reaction chamber. The gasification device according to claim 25 is characterized in that the burner has a combustion chamber, an air inlet, an air outlet and a slag outlet, the air inlet, the air outlet and the slag outlet are connected to the combustion chamber, the combustion chamber has an initial fuel, the air inlet is suitable for introducing a gasifying agent into the combustion chamber so that the initial fuel burns in the combustion chamber to form coke particles and coal gas, the slag outlet is suitable for discharging the coke particles in the combustion chamber, the particle size of the coke particles is smaller than the particle size of the initial fuel, and the air outlet is suitable for discharging the coal gas in the combustion chamber; The gasification device also includes a fluidized bed body, a dust collector and an entrained bed body; The fluidized bed body has a first reaction chamber, in which a gasifying agent is contained, the first reaction chamber is connected to the slag outlet, and the coke particles in the combustion chamber enter the first reaction chamber through the slag outlet and react in the first reaction chamber to generate coal gas; The dust collector has a first inlet and a first outlet, the combustion chamber and the first reaction chamber are connected to the first inlet, the dust collector is used to purify the coal gas in the combustion chamber and the coal gas in the first reaction chamber to remove fine ash carried by the coal gas, and the first outlet is used to discharge the fine ash, and the particle size of the fine ash is smaller than the particle size of the coke particles; The fluidized bed body has a second reaction chamber, a second inlet and a second outlet. The second inlet is connected to the first outlet so that fine ash in the dust collector can enter the second reaction chamber. The second reaction chamber contains a gasifying agent. The fine ash in the second reaction chamber reacts with the gasifying agent to produce coal gas and is discharged from the second outlet. The second outlet is connected to the second reaction chamber and the first inlet of the dust collector. The gasification device according to claim 28 is characterized in that it also includes a separator, which is connected to the first reaction chamber, and the coal gas in the first reaction chamber can enter the separator, and the separator is used to separate the coarse ash carried by the coal gas and return the coarse ash to the first reaction chamber for further reaction. The gasification device according to claim 29 is characterized in that it also includes a second heat exchanger and a third heat exchanger, the second heat exchanger is connected to the separator, the combustion chamber and the second reaction chamber, the second heat exchanger has a refrigerant, and the coal gas discharged from the combustion chamber, the separator and the second reaction chamber is heat-exchanged with the refrigerant; the third heat exchanger is arranged in the second reaction chamber and is connected to the second heat exchanger, and part of the refrigerant in the second heat exchanger after heat exchange enters the third heat exchanger; and/or It also includes a silo pump, which is connected to the first outlet and the second inlet, and is used to pass the fine ash in the dust collector into the second reaction chamber. The gasification device according to claim 30, characterized in that the second inlet is located at the top of the fluidized bed body, the second inlet is suitable for introducing the gasifying agent and the fine ash in the dust collector, and the second outlet is located below the second inlet; and/or The fluidized bed body has a third air inlet, the third air inlet is located at the bottom of the fluidized bed body, and the third air inlet is suitable for introducing a gasifying agent; and/or It also includes a waste heat recovery device, a desulfurizer and a gas station which are connected in sequence, the dust collector also has a third outlet which is connected to the waste heat recovery device, and the coal gas in the dust collector is suitable for being discharged from the third outlet after fine ash is removed and passes through the waste heat recovery device, the desulfurizer and the gas station in sequence; and/or It also includes a slag pool, which is connected to the first reaction chamber and the second reaction chamber, and is used to collect slag produced by the reaction of coke particles in the first reaction chamber and slag produced by the reaction of fine ash in the second reaction chamber. The gasification device according to claim 25 is characterized in that the burner has a combustion chamber and an air inlet, an air outlet and a slag outlet connected to the combustion chamber, the combustion chamber has an initial fuel, the air inlet is suitable for introducing a gasifying agent into the combustion chamber so that the initial fuel burns in the combustion chamber to form coke particles and coal gas, the slag outlet is suitable for discharging part of the coke particles in the combustion chamber, the particle size of the coke particles is smaller than the particle size of the initial fuel, and the air outlet is suitable for discharging the coal gas in the combustion chamber; The gasification device also includes a pulverizer and an entrained bed body; The pulverizer is connected to the slag outlet so that the coke particles in the combustion chamber can enter the pulverizer. The pulverizer is used to convert the coke particles into coke powder, and the particle size of the coke powder is smaller than that of the coke particles. The fluidized bed body has a second reaction chamber, and the second reaction chamber is connected to the pulverizer so that the coke powder in the pulverizer can enter the second reaction chamber and generate coal gas in the second reaction chamber. The gasification device according to claim 32 is characterized in that it also includes a fourth heat exchanger, a fifth heat exchanger and a sixth heat exchanger, the fourth heat exchanger is connected to the slag outlet and the pulverizer, the fourth heat exchanger has a refrigerant, and the coke particles discharged from the slag outlet are heat-exchanged with the refrigerant in the fourth heat exchanger; the fifth heat exchanger is connected to the second reaction chamber and the combustion chamber, the fifth heat exchanger has a refrigerant, the coal gas discharged from the gas outlet and the coal gas discharged from the second reaction chamber are heat-exchanged with the refrigerant in the fifth heat exchanger; the sixth heat exchanger is arranged in the second reaction chamber and is connected to the fifth heat exchanger, and part of the refrigerant in the fifth heat exchanger after heat exchange enters the sixth heat exchanger; and/or The device further comprises a dust collector and a silo pump, wherein the silo pump is connected to the pulverizer and the second reaction chamber, the dust collector is connected to the silo pump and the fifth heat exchanger, and the dust collector is used to remove fine ash carried in the coal gas discharged from the fifth heat exchanger and to convert the removed fine ash into The ash is returned to the silo pump, and the silo pump then passes the fine ash and the pulverized coal in the pulverizer into the second reaction chamber; and/or The particle size of the coke particles discharged from the slag outlet is less than 4 mm; and/or The particle size of the coal powder in the pulverizer is less than 0.1 mm; and/or A slag pool is connected to the second reaction chamber, and is used to collect slag produced after the coal powder reacts in the second reaction chamber. A garbage incineration treatment system, characterized by comprising: A burner, wherein the burner is a burner as claimed in any one of claims 1 to 24, wherein the burner has a feed port for inputting garbage, a slag outlet for discharging incineration ash, and an air outlet for discharging incineration smoke; A flue gas treatment unit, the flue gas treatment unit comprising a waste heat recovery component and a second purification component, the air inlet of the waste heat recovery component is communicated with the air outlet of the burner, and the waste heat recovery component can recover the heat of the incineration flue gas, the air inlet of the second purification component is communicated with the air outlet of the waste heat recovery component, and the second purification component can purify the incineration flue gas; An ash collecting bin, a feed port of the ash collecting bin, the waste heat recovery component and the slag port of the second purification component are all connected, and a discharge port of the ash collecting bin is connected to the feed port of the burner. The waste incineration treatment system according to claim 34 is characterized in that the feed port of the burner includes a fuel inlet, a powdered fuel inlet and a nozzle, the fuel inlet can input lump waste into the burner, the powdered fuel inlet can input powdered waste into the burner, the discharge port of the ash bin is connected to the powdered fuel inlet, and the nozzle can spray waste leachate into the burner. The waste incineration treatment system according to claim 35 is characterized in that it also includes a waste pretreatment unit, the solid discharge port of the waste pretreatment unit is connected to the fuel inlet, and the liquid discharge port of the waste pretreatment unit is connected to the nozzle. The waste incineration treatment system according to any one of claims 34 to 36 is characterized in that the waste heat recovery component includes a waste heat boiler, the air inlet of the waste heat boiler is connected to the air outlet of the burner, and the slag port of the waste heat boiler is connected to the feed port of the ash collection bin. The waste incineration treatment system according to claim 37 is characterized in that the waste heat recovery component also includes a gas-solid separator, a quenching tower and a seventh heat exchanger, the air inlet of the gas-solid separator is connected to the air outlet of the waste heat boiler, the air outlet of the gas-solid separator is connected to the air inlet of the quenching tower, the slag port of the gas-solid separator is connected to the feed port of the ash collecting bin, and the water outlet of the quenching tower is connected to the heat source chamber of the seventh heat exchanger. The waste incineration treatment system according to claim 38 is characterized in that the cold source chamber of the seventh heat exchanger is suitable for passing normal temperature gas, and the outlet of the cold source chamber is connected to the powder fuel inlet and/or the nozzle. The waste incineration treatment system according to claim 39 is characterized in that it also includes a gasifier, the feed port of the gasifier is connected to the discharge port of the ash collecting bin, the air inlet of the gasifier is connected to the outlet of the cold source chamber, and the discharge port of the gasifier is connected to the powdered fuel inlet. The waste incineration treatment system according to any one of claims 38 to 40 is characterized in that the second purification component includes a denitrification tower and a desulfurization tower, the air inlet of the denitrification tower is connected to the air outlet of the quenching tower, and the air inlet of the desulfurization tower is connected to the air outlet of the denitrification tower. The waste incineration treatment system according to claim 41 is characterized in that the second purification component also includes an adsorption tower, the air inlet of the adsorption tower is connected to the air outlet of the desulfurization tower, the slag port of the adsorption tower is connected to the feed port of the ash collecting bin, and the air outlet of the adsorption tower leads to the chimney.