WO2024198816A1 - Magnetization pyrolysis incineration apparatus, and feed management and control method therefor - Google Patents

Abstract

The present invention relates to the field of solid waste incineration treatment. Disclosed are a magnetization pyrolysis incineration apparatus, and a feed management and control method therefor. The magnetization pyrolysis incineration apparatus comprises a feeding device, a tail gas clean-up device, a feed management and control system, and a magnetization pyrolysis assembly, wherein the magnetization pyrolysis assembly comprises N low-temperature magnetization pyrolysis devices arranged in parallel, and K high-temperature pyrolysis incineration devices arranged in parallel; and the feed management and control system can measure a pyrolysis gas temperature and a pyrolysis gas oxygen concentration inside or at an outlet of each low-temperature magnetization pyrolysis device, and can control, according to the pyrolysis gas temperature and the pyrolysis gas oxygen concentration, the feeding amount and rate of solid waste delivered by the feeding device to each low-temperature magnetization pyrolysis device. The present invention can avoid the problems of exhaust gas fluctuations and a poor pyrolysis effect caused by uneven feeding, enhance the operation reliability of the magnetization pyrolysis incineration apparatus, improve the degree of automation of the magnetization pyrolysis incineration apparatus, and ensure the safe and stable operation of the apparatus for a long period of time.

Description

Magnetization pyrolysis incineration equipment and feeding control method thereof Technical Field

The present invention relates to the field of solid waste incineration treatment, and specifically to a magnetized pyrolysis incineration equipment and a feed control method thereof.

Background Art

Traditional methods of solid waste incineration include gasification pyrolysis, magnetized pyrolysis, rotary kiln, etc. Magnetized pyrolysis incineration equipment has a unique advantage of using magnetized air as a gasifying agent, which can pyrolyze and gasify organic solid waste under low temperature conditions, and has received great attention in the field of organic solid waste treatment. However, the existing published magnetized pyrolysis incineration equipment all use a single pyrolysis gasification chamber, and do not mention the control system and method of feeding. Basically, the operators use intermittent periodic batch feeding based on their own experience. However, the solid waste treated by the magnetized pyrolysis incineration equipment comes from various sources, has complex components, and has variable calorific values. During the magnetized pyrolysis process, it is necessary to manually adjust the feed amount and frequency to ensure the stable operation of the pyrolysis incineration device. This method of operation based on personal experience will cause irregular fluctuations in the temperature, composition, and flow rate of the pyrolysis gas, which will not only make it difficult to control emission indicators, but also bring operational stability and safety issues. Therefore, designing a system and method to accurately control the feed amount and feeding interval by monitoring key operating parameters such as oxygen content and temperature in the magnetized pyrolysis process is a necessary condition to ensure the stable, reliable and environmentally friendly operation of the magnetized pyrolysis incineration device.

CN105157032 A discloses a magnetized cracking device for treating organic waste, including a device body, a feeding device, a grate, a magnetized air generating device, a blower, an ash removal device, a secondary combustion device, a drain valve and an explosion-proof valve, wherein the exhaust device includes an alkaline water washing box, an oxygen-deficient combustion chamber, a full oxygen combustion section and a high-temperature catalytic chamber. The patent does not mention that multiple pyrolysis chambers can be used, nor does it mention the system and specific method for feeding/feeding control, which is very important for the magnetized pyrolysis process.

CN2894873Y discloses a magnetized air pyrolysis device for solid waste treatment, which includes: a furnace body, a processing chamber, a discharge chamber, etc. The discharge chamber is provided with an air inlet connected to the air inlet duct, and the processing chamber is provided with an exhaust port connected to the flue; a magnetizer is provided on the air inlet duct, and a magnet with a strong magnetic field is provided in the magnetizer. The other end of the air inlet duct is connected to the air outlet of the fan, and a ventilation duct is provided between the air outlet of the fan and the flue. The patent also does not mention the specific feed control system and method.

Summary of the invention

In view of this, the purpose of the present invention is to provide a magnetized pyrolysis incineration equipment and a feed control method thereof, which can increase the operating reliability of the magnetized pyrolysis incineration equipment and improve the degree of automation of the magnetized pyrolysis incineration equipment by adjusting the rhythm of the magnetized pyrolysis incineration equipment, thereby ensuring that the pyrolysis and incineration process of the waste is smoothly controlled.

A magnetized pyrolysis incineration device in the present invention includes a feeding device, an exhaust gas purification device, a feeding control system and a magnetized pyrolysis assembly;

The magnetized pyrolysis assembly includes N low-temperature magnetized pyrolysis devices arranged in parallel and K high-temperature pyrolysis and incineration devices arranged in parallel; the low-temperature magnetized pyrolysis devices can realize low-temperature pyrolysis and gasification of solid waste in an oxygen-deficient environment under the action of magnetized air, and the generated pyrolysis gas can enter the corresponding high-temperature pyrolysis and incineration device, and the high-temperature pyrolysis and incineration device can perform high-temperature pyrolysis and incineration on the pyrolysis gas; wherein N≥1, K≥1; the K high-temperature pyrolysis and incineration devices are all connected to the exhaust gas purification device;

The feed control system can detect the pyrolysis gas temperature and pyrolysis gas oxygen concentration inside or at the outlet of each low-temperature magnetic pyrolysis device, and control the feed amount and rhythm of the solid waste transported by the feed device to each low-temperature magnetic pyrolysis device according to the pyrolysis gas temperature and pyrolysis gas oxygen concentration.

Furthermore, the feed control system includes a main controller, multiple temperature sensors and multiple oxygen sensors, and each of the low-temperature magnetic pyrolysis devices corresponds to at least one temperature sensor and at least one oxygen sensor; the temperature sensor can detect the temperature of the pyrolysis gas inside or at the outlet of the corresponding low-temperature magnetic pyrolysis device, and the oxygen sensor can detect the oxygen concentration of the pyrolysis gas inside or at the outlet of the corresponding low-temperature magnetic pyrolysis device, and the multiple temperature sensors and the multiple oxygen sensors are all connected to the main controller, and the main controller is connected to the feeding device.

Furthermore, the number of the temperature sensors and oxygen sensors is N, and the N temperature sensors correspond one-to-one to the N low-temperature magnetization pyrolysis devices, and the N oxygen sensors correspond one-to-one to the N low-temperature magnetization pyrolysis devices.

Furthermore, the main controller is preset with a single feed amount A, a first pyrolysis temperature threshold T1, a minimum feed time interval t1, a pyrolysis gas temperature limit value T2 and a magnetized pyrolysis gas oxygen concentration limit value B.

A method for controlling feed of a magnetized pyrolysis incineration device in the present invention comprises the following steps:

S1. According to the type of solid waste to be incinerated, the following parameters are set through the main controller: single feed amount A, minimum feed time interval t1, first pyrolysis temperature threshold T1, pyrolysis gas temperature limit value T2 and magnetized pyrolysis gas oxygen concentration limit value B;

S2, performing the first feeding, transporting the solid waste to the low-temperature magnetic pyrolysis device through the feeding device, the number of the low-temperature magnetic pyrolysis devices is N, where N ≥ 1;

S3. Each low-temperature magnetic pyrolysis device pyrolyzes and gasifies the solid waste inside. The feed control system monitors the real-time pyrolysis gas temperature inside or at the outlet of each low-temperature magnetic pyrolysis device. When the real-time pyrolysis gas temperature of any low-temperature magnetic pyrolysis device is ≥ T1, the main controller starts to record the feed interval time of the low-temperature magnetic pyrolysis device.

S4. Each low-temperature magnetic pyrolysis device continues to pyrolyze and gasify the solid waste inside, and the feed control system monitors the real-time pyrolysis gas temperature and real-time pyrolysis gas oxygen concentration inside or at the outlet of each low-temperature magnetic pyrolysis device; when any low-temperature magnetic pyrolysis device meets the conditions that the feed interval time ≥ t1, the real-time pyrolysis gas temperature < T2, and the real-time pyrolysis gas oxygen concentration ≥ B, the feed device transports the solid waste to the low-temperature magnetic pyrolysis device;

S5. When the conveying amount of solid waste reaches the single feeding amount A, the feeding device stops conveying and sends a feeding completion signal to the main controller. The feeding interval time of the low-temperature magnetic pyrolysis device recorded by the main controller is reset to zero, and the feeding interval time of the low-temperature magnetic pyrolysis device is recorded again;

S6. Repeat steps S4-S5.

Further, in step S4, when any low-temperature magnetic pyrolysis device meets the conditions of a feeding interval time ≥ t1, a real-time pyrolysis gas temperature < T2, and a real-time pyrolysis gas oxygen concentration ≥ B, the main controller determines that the low-temperature magnetic pyrolysis device needs to be fed, and the main controller sends a feeding instruction to the feeding device, and the feeding device transports solid waste to the low-temperature magnetic pyrolysis device. Another technical solution different from the above-mentioned step S4 is: in step S4, when any low-temperature magnetic pyrolysis device meets the conditions of a feeding interval time ≥ t1, a real-time pyrolysis gas temperature < T2, and a real-time pyrolysis gas oxygen concentration ≥ B, the main controller determines that the low-temperature magnetic pyrolysis device needs to be fed, and the main controller gives an alarm to prompt the manual feeding device to feed.

The beneficial effects of the present invention are as follows: the present invention collects the operating parameters of each low-temperature magnetic pyrolysis device through the main controller to reasonably match the feed, which solves the problem of exhaust gas fluctuation caused by relying on the personal experience of the operator to feed, and solves the problem of feed priority caused by multiple low-temperature magnetic pyrolysis devices, ensuring scientific feeding, avoiding exhaust gas fluctuations caused by uneven feeding and poor pyrolysis effect, reducing manual labor intensity, saving costs, and by adjusting the rhythm of the magnetic pyrolysis incineration device, it can increase the operating reliability of the magnetic pyrolysis incineration equipment, improve the degree of automation of the magnetic pyrolysis incineration equipment, ensure that the pyrolysis and incineration process of the waste is smoothly controlled, and ensure the long-term safe and stable operation of the magnetic pyrolysis incineration equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

FIG1 is a schematic diagram of the structure of Embodiment 1 of the present invention (the number of low-temperature magnetization pyrolysis devices and high-temperature pyrolysis incineration devices is three);

FIG2 is a schematic diagram of the structure of Embodiment 2 of the present invention (the number of the low-temperature magnetization pyrolysis device and the high-temperature pyrolysis incineration device is one);

FIG3 is a schematic diagram of the structure of Embodiment 5 of the present invention (the number of low-temperature magnetization pyrolysis devices is 2, and the number of high-temperature pyrolysis incineration devices is 4);

FIG4 is a schematic structural diagram of Embodiment 6 of the present invention (the number of low-temperature magnetization pyrolysis devices is 2, and the number of high-temperature pyrolysis incineration devices is 1).

DETAILED DESCRIPTION

The technical solution of the present invention is described in detail below with reference to the accompanying drawings and embodiments.

Example 1:

As shown in FIG1 , a magnetized pyrolysis incineration device in this embodiment includes a feeding device, an exhaust gas purification device, a feeding control system and a magnetized pyrolysis assembly; the magnetized pyrolysis assembly includes three low-temperature magnetized pyrolysis devices arranged in parallel and three high-temperature pyrolysis incineration devices arranged in parallel; the three low-temperature magnetized pyrolysis devices correspond to the three high-temperature pyrolysis incineration devices one by one; the low-temperature magnetized pyrolysis device can realize low-temperature pyrolysis and gasification of solid waste in an oxygen-deficient environment under the action of magnetized air, and the generated pyrolysis gas can enter the corresponding high-temperature pyrolysis incineration device, and the high-temperature pyrolysis incineration device can perform high-temperature pyrolysis and incineration on the pyrolysis gas; the three high-temperature pyrolysis incineration devices are all connected to the exhaust gas purification device; the number of the exhaust gas purification device is one;

The feeding device includes but is not limited to a feeding channel and a feeding door separating the internal and external environments of the low-temperature magnetic pyrolysis device; after the feeding device feeds the solid waste into the low-temperature magnetic pyrolysis device, after pyrolysis and gasification, the generated pyrolysis gas enters the corresponding high-temperature pyrolysis incineration device, and the pyrolysis gas is discharged into the tail gas purification device after high-temperature incineration;

The feed control system can detect the pyrolysis gas temperature and pyrolysis gas oxygen concentration inside or at the outlet of each low-temperature magnetic pyrolysis device, and control the feed amount and rhythm of the solid waste transported by the feed device to each low-temperature magnetic pyrolysis device according to the pyrolysis gas temperature and pyrolysis gas oxygen concentration.

Specifically, the three low-temperature magnetized pyrolysis devices are respectively low-temperature magnetized pyrolysis device I, low-temperature magnetized pyrolysis device II and low-temperature magnetized pyrolysis device III; the three high-temperature pyrolysis incineration devices are respectively high-temperature pyrolysis incineration device I, high-temperature pyrolysis incineration device II and high-temperature pyrolysis incineration device III; the pyrolysis gas generated by low-temperature magnetized pyrolysis device I enters high-temperature pyrolysis incineration device I, the pyrolysis gas generated by low-temperature magnetized pyrolysis device II enters high-temperature pyrolysis incineration device II, and the pyrolysis gas generated by low-temperature magnetized pyrolysis device III enters high-temperature pyrolysis incineration device III; low-temperature magnetized pyrolysis device I, low-temperature magnetized pyrolysis device II and low-temperature magnetized pyrolysis device III are all connected to the feeding device; high-temperature pyrolysis incineration device I, high-temperature pyrolysis incineration device II and high-temperature pyrolysis incineration device III are all connected to the exhaust gas purification device;

The feeding control system includes a main controller, three temperature sensors and three oxygen sensors. The three temperature sensors correspond to the three magnetized pyrolysis assemblies one by one, and the temperature sensors can detect the pyrolysis gas temperature inside or at the outlet of the corresponding low-temperature magnetized pyrolysis device; the three oxygen sensors correspond to the three magnetized pyrolysis assemblies one by one, and the oxygen sensors can detect the oxygen concentration of the pyrolysis gas inside or at the outlet of the corresponding low-temperature magnetized pyrolysis device; the three temperature sensors and the oxygen sensor are all connected to the main controller, and the main controller is connected to the feeding device;

Specifically, the three temperature sensors are temperature sensor I, temperature sensor II and temperature sensor III, and the three oxygen sensors are oxygen sensor I, oxygen sensor II and oxygen sensor III. Temperature sensor I and oxygen sensor I are arranged inside or at the outlet of low-temperature magnetization pyrolysis device I, temperature sensor II and oxygen sensor II are arranged inside or at the outlet of low-temperature magnetization pyrolysis device II, and temperature sensor III and oxygen sensor III are arranged inside or at the outlet of low-temperature magnetization pyrolysis device III.

In this embodiment, the main controller includes a signal acquisition module and a control module. The signal acquisition module can obtain the pyrolysis gas temperature value detected by each temperature sensor, the pyrolysis gas oxygen concentration detected by each oxygen sensor, and the feeding completion signal issued by the feeding device, and feed back the pyrolysis gas temperature value, pyrolysis gas oxygen concentration and feeding completion signal to the control module.

In this embodiment, the main controller also includes a sending module, which is connected to the control module. The control module sends feeding instructions to the feeding device through the sending module to control the feeding device to transport solid waste to each low-temperature magnetization pyrolysis device.

In this embodiment, the main controller also includes a timing module, which is used to record the feeding interval time and reset the timing, and feed the feeding interval time back to the control module.

In this embodiment, the control module is preset with a single feed amount A, a minimum feed time interval t1, a first pyrolysis temperature threshold T1, a pyrolysis gas temperature limit value T2, and a magnetized pyrolysis gas oxygen concentration limit value B.

Example 2:

As shown in FIG2 , this embodiment provides a feeding device, an exhaust gas purification device, a feeding control system, and a magnetization pyrolysis assembly;

The magnetization pyrolysis assembly includes a low-temperature magnetization pyrolysis device and a high-temperature pyrolysis incineration device corresponding to the low-temperature magnetization pyrolysis device; the low-temperature magnetization pyrolysis device can realize low-temperature pyrolysis and gasification of solid waste in an oxygen-deficient environment under the action of magnetized air, and the generated pyrolysis gas can enter the high-temperature pyrolysis incineration device, and the high-temperature pyrolysis incineration device can perform high-temperature pyrolysis and incineration on the pyrolysis gas; the high-temperature pyrolysis incineration devices are all connected to the exhaust gas purification device; the number of the exhaust gas purification device is one;

The feeding device includes but is not limited to a feeding channel and a feeding door separating the internal and external environments of the low-temperature magnetic pyrolysis device; after the feeding device feeds the solid waste into the low-temperature magnetic pyrolysis device, after pyrolysis and gasification, the generated pyrolysis gas enters the corresponding high-temperature pyrolysis incineration device, and the pyrolysis gas is discharged into the tail gas purification device after high-temperature incineration;

The feed control system can detect the pyrolysis gas temperature and pyrolysis gas oxygen concentration inside or at the outlet of each low-temperature magnetic pyrolysis device, and control the feed amount and rhythm of the solid waste transported by the feed device to each low-temperature magnetic pyrolysis device according to the pyrolysis gas temperature and pyrolysis gas oxygen concentration.

In this embodiment, the feed control system includes a main controller, a temperature sensor and an oxygen sensor. Each low-temperature magnetic pyrolysis device corresponds to a temperature sensor and an oxygen sensor. The temperature sensor can detect the temperature of the pyrolysis gas inside or at the outlet of the low-temperature magnetic pyrolysis device, and the oxygen sensor can detect the oxygen concentration of the pyrolysis gas inside or at the outlet of the low-temperature magnetic pyrolysis device. The temperature sensor and the oxygen sensor are both connected to the main controller, and the main controller is connected to the feeding device.

In this embodiment, the main controller presets the single feed amount A, the first pyrolysis temperature threshold T1, the minimum feed time interval t1, the pyrolysis gas temperature limit value T2 and the magnetized pyrolysis gas oxygen concentration limit value B.

Example 3:

A method for controlling feed of a magnetized pyrolysis incineration device in this embodiment uses the magnetized pyrolysis incineration device in Embodiment 1; and includes the following steps:

S1. According to the type of solid waste to be incinerated, the following parameters are set through the control module of the main controller: single feed amount A, minimum feed time interval t1, first pyrolysis temperature threshold T1, pyrolysis gas temperature limit value T2 and magnetized pyrolysis gas oxygen concentration limit value B;

S2, performing the first feeding of solid waste, and conveying the solid waste to the low-temperature magnetic pyrolysis device, the low-temperature magnetic pyrolysis device I, the low-temperature magnetic pyrolysis device II and the low-temperature magnetic pyrolysis device III through the feeding device;

Specifically, the feeding device first transports the solid waste to the low-temperature magnetic pyrolysis device I, and after an interval of t2, the feeding device then transports the solid waste to the low-temperature magnetic pyrolysis device II, and after an interval of t3, the feeding device finally transports the solid waste to the low-temperature magnetic pyrolysis device III; the feeding device transports the solid waste to each low-temperature magnetic pyrolysis device at different times, which can reduce the periodic fluctuation of the exhaust gas generated by each magnetic pyrolysis assembly, ensure that a relatively stable exhaust gas flow can be provided to enter the exhaust purification device, and prevent the exhaust purification device from failing to meet the treatment standards due to the periodic fluctuation of the exhaust gas;

S3, the three low-temperature magnetic pyrolysis devices pyrolyze and gasify the solid waste inside respectively, and the feed control system monitors the real-time pyrolysis gas temperature inside or at the outlet of each low-temperature magnetic pyrolysis device. When the real-time pyrolysis gas temperature of any low-temperature magnetic pyrolysis device is ≥ T1, the timing module of the main controller starts to record the feeding interval time of the low-temperature magnetic pyrolysis device; for example, if the real-time pyrolysis gas temperature of the low-temperature magnetic pyrolysis device I is ≥ T1, the timing module starts to record the feeding interval time of the low-temperature magnetic pyrolysis device I, and if the real-time pyrolysis gas temperature of the low-temperature magnetic pyrolysis device I is < T1, the timing module does not count; the significance of step S3 is that after the solid waste is transported to each low-temperature magnetic pyrolysis device for the first time, it needs to be pyrolyzed and gasified for a certain period of time. When the pyrolysis gas temperature of the low-temperature magnetic pyrolysis device is not less than T1, it is necessary to judge through the control module that the low-temperature magnetic pyrolysis device needs to be fed to prevent misjudgment;

S4. Each low-temperature magnetic pyrolysis device continues to pyrolyze and gasify the solid waste inside, and the feed control system monitors the real-time pyrolysis gas temperature and real-time pyrolysis gas oxygen concentration inside or at the outlet of each low-temperature magnetic pyrolysis device; when any low-temperature magnetic pyrolysis device meets the conditions that the feed interval time ≥ t1, the real-time pyrolysis gas temperature < T2, and the real-time pyrolysis gas oxygen concentration ≥ B, the feed device transports the solid waste to the low-temperature magnetic pyrolysis device;

The feeding device can be automatically controlled or manually controlled;

When the feeding device is automatically controlled, and when any low-temperature magnetic pyrolysis device satisfies the feeding interval time ≥ t1, the real-time pyrolysis gas temperature < T2, and the real-time pyrolysis gas oxygen concentration ≥ B, the control module of the main controller determines that the low-temperature magnetic pyrolysis device needs to be fed, and the control module sends a feeding instruction to the feeding device through the sending module, and the feeding device transports solid waste to the low-temperature magnetic pyrolysis device; for example, if the low-temperature magnetic pyrolysis device I satisfies the feeding interval time ≥ t1, the real-time pyrolysis gas temperature < T2, and the real-time pyrolysis gas oxygen concentration ≥ B, the control module determines that the low-temperature magnetic pyrolysis device I needs to be fed, and the control module sends a feeding instruction to the feeding device through the sending module, and the feeding device transports solid waste to the low-temperature magnetic pyrolysis device I;

When the feeding device is manually controlled, and when any low-temperature magnetic pyrolysis device meets the conditions that the feeding interval time ≥ t1, the real-time pyrolysis gas temperature < T2, and the real-time pyrolysis gas oxygen concentration ≥ B, the control module of the main controller determines that the low-temperature magnetic pyrolysis device needs to be fed, and the main controller gives an alarm to prompt the manual operation of the feeding device to feed. The main controller can give an alarm by sound or light or a combination of sound and light to warn the worker, so as to prompt the worker to operate the feeding device to transport solid waste to the low-temperature magnetic pyrolysis device;

S5. When the conveying amount of solid waste reaches the single feeding amount A, the feeding device stops conveying and sends a feeding completion signal to the signal acquisition module of the main controller. The signal acquisition module feeds back the feeding completion signal to the control module. The control module sends an instruction to clear the feeding interval time of the low-temperature magnetization pyrolysis device recorded by the timing module, and the timing module restarts to record the feeding interval time of the low-temperature magnetization pyrolysis device.

S6. Repeat steps S4-S5.

In this embodiment, the number of low-temperature magnetic pyrolysis devices is three, satisfying the condition that the number of low-temperature magnetic pyrolysis devices is not less than 2. Then in step S4, if multiple low-temperature magnetic pyrolysis devices all satisfy the feeding interval time ≥ t1, the real-time pyrolysis gas temperature < T2 and the real-time pyrolysis gas oxygen concentration ≥ B, the control module will sort the feeding priority according to the real-time pyrolysis gas oxygen concentration. The greater the real-time pyrolysis gas oxygen concentration of the low-temperature magnetic pyrolysis device, the higher the feeding priority of the low-temperature magnetic pyrolysis device.

Example 4:

This embodiment provides a method for controlling the feeding of a magnetized pyrolysis incineration device, using the magnetized pyrolysis incineration device in the second embodiment; and includes the following steps:

P1. According to the type of solid waste to be incinerated, the following parameters are set through the main controller: single feed amount A, minimum feed time interval t1, first pyrolysis temperature threshold T1, pyrolysis gas temperature limit value T2 and magnetized pyrolysis gas oxygen concentration limit value B;

P2, carrying out the first feeding of solid waste, and conveying the solid waste to the low-temperature magnetic pyrolysis device through the feeding device;

P3. The low-temperature magnetic pyrolysis device pyrolyzes and gasifies the solid waste inside. The feed control system monitors the real-time pyrolysis gas temperature inside or at the outlet of the low-temperature magnetic pyrolysis device. When the real-time pyrolysis gas temperature of the low-temperature magnetic pyrolysis device is ≥ T1, the main controller starts to record the feed interval time of the low-temperature magnetic pyrolysis device;

P4. The low-temperature magnetic pyrolysis device continues to pyrolyze and gasify the solid waste inside. The feed control system monitors the real-time pyrolysis gas temperature and real-time pyrolysis gas oxygen concentration inside or at the outlet of the low-temperature magnetic pyrolysis device. When the low-temperature magnetic pyrolysis device satisfies the feeding interval time ≥ t1, the real-time pyrolysis gas temperature < T2, and the real-time pyrolysis gas oxygen concentration ≥ B, the main controller determines that the low-temperature magnetic pyrolysis device needs to be fed, and the main controller sends a feeding instruction to the feeding device, and the feeding device transports solid waste to the low-temperature magnetic pyrolysis device.

P5. When the conveying amount of solid waste reaches the single feeding amount A, the feeding device stops conveying and sends a feeding completion signal to the main controller. The main controller sends an instruction to reset the feeding interval time of the low-temperature magnetic pyrolysis device recorded by the timing module, and restarts recording the feeding interval time of the low-temperature magnetic pyrolysis device;

P6. Repeat steps P4-P5.

Example five;

As shown in FIG3 , a magnetized pyrolysis incineration device in this embodiment is different from the first embodiment in that: the magnetized pyrolysis assembly includes two low-temperature magnetized pyrolysis devices arranged in parallel and four high-temperature pyrolysis incineration devices arranged in parallel; the four high-temperature pyrolysis incineration devices are all connected to the exhaust gas purification device; wherein each low-temperature magnetized pyrolysis device is respectively connected to two high-temperature pyrolysis incineration devices, that is, the pyrolysis gas generated by each low-temperature magnetized pyrolysis device is respectively led to two high-temperature pyrolysis incineration devices. Correspondingly, the number of temperature sensors and oxygen sensors is also two.

Example six;

As shown in FIG4 , a magnetized pyrolysis incineration device in this embodiment is different from the first embodiment in that: the magnetized pyrolysis assembly includes two low-temperature magnetized pyrolysis devices and a high-temperature pyrolysis incineration device arranged in parallel; the two low-temperature magnetized pyrolysis devices are connected to the high-temperature pyrolysis incineration device, and the high-temperature pyrolysis incineration device is connected to the exhaust gas purification device. Correspondingly, the number of temperature sensors and oxygen sensors is also two.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims (7)

A magnetized pyrolysis incineration device, characterized in that it includes a feeding device, an exhaust gas purification device, a feeding control system and a magnetized pyrolysis assembly; The magnetized pyrolysis assembly includes N low-temperature magnetized pyrolysis devices arranged in parallel and K high-temperature pyrolysis and incineration devices arranged in parallel; the low-temperature magnetized pyrolysis devices can realize low-temperature pyrolysis and gasification of solid waste in an oxygen-deficient environment under the action of magnetized air, and the generated pyrolysis gas can enter the corresponding high-temperature pyrolysis and incineration device, and the high-temperature pyrolysis and incineration device can perform high-temperature pyrolysis and incineration on the pyrolysis gas; wherein N≥1, K≥1; the K high-temperature pyrolysis and incineration devices are all connected to the exhaust gas purification device; The feed control system can detect the pyrolysis gas temperature and pyrolysis gas oxygen concentration inside or at the outlet of each low-temperature magnetic pyrolysis device, and control the feed amount and rhythm of the solid waste transported by the feed device to each low-temperature magnetic pyrolysis device according to the pyrolysis gas temperature and pyrolysis gas oxygen concentration. The magnetized pyrolysis incineration equipment according to claim 1 is characterized in that: the feed control system includes a main controller, multiple temperature sensors and multiple oxygen sensors, each of the low-temperature magnetized pyrolysis devices corresponds to at least one temperature sensor and at least one oxygen sensor; the temperature sensor can detect the pyrolysis gas temperature inside or at the outlet of the corresponding low-temperature magnetized pyrolysis device, and the oxygen sensor can detect the oxygen concentration of the pyrolysis gas inside or at the outlet of the corresponding low-temperature magnetized pyrolysis device, and the multiple temperature sensors and the multiple oxygen sensors are all connected to the main controller, and the main controller is connected to the feeding device. The magnetized pyrolysis incineration equipment according to claim 2 is characterized in that the number of the temperature sensors and the number of the oxygen sensors are N, the N temperature sensors correspond one-to-one to the N low-temperature magnetized pyrolysis devices, and the N oxygen sensors correspond one-to-one to the N low-temperature magnetized pyrolysis devices. The magnetized pyrolysis incineration equipment according to claim 3 is characterized in that: the main controller is preset with a single feed amount A, a first pyrolysis temperature threshold T1, a minimum feed time interval t1, a pyrolysis gas temperature limit value T2 and a magnetized pyrolysis gas oxygen concentration limit value B. A method for controlling feed of a magnetized pyrolysis incineration device, characterized in that it comprises the following steps: S1. According to the type of solid waste to be incinerated, the following parameters are set through the main controller: single feed amount A, minimum feed time interval t1, first pyrolysis temperature threshold T1, pyrolysis gas temperature limit value T2 and magnetized pyrolysis gas oxygen concentration limit value B; S2, performing the first feeding, transporting the solid waste to the low-temperature magnetic pyrolysis device through the feeding device, the number of the low-temperature magnetic pyrolysis devices is N, where N ≥ 1; S3. Each low-temperature magnetic pyrolysis device pyrolyzes and gasifies the solid waste inside. The feed control system monitors the real-time pyrolysis gas temperature inside or at the outlet of each low-temperature magnetic pyrolysis device. When the real-time pyrolysis gas temperature of any low-temperature magnetic pyrolysis device is ≥ T1, the main controller starts to record the feed interval time of the low-temperature magnetic pyrolysis device. S4. Each low-temperature magnetic pyrolysis device continues to pyrolyze and gasify the solid waste inside, and the feed control system monitors the real-time pyrolysis gas temperature and real-time pyrolysis gas oxygen concentration inside or at the outlet of each low-temperature magnetic pyrolysis device; when any low-temperature magnetic pyrolysis device meets the conditions that the feed interval time is ≥ t1, the real-time pyrolysis gas temperature is < T2, and the real-time pyrolysis gas oxygen concentration is ≥ B, the feed device transports the solid waste to the low-temperature magnetic pyrolysis device; S5. When the conveying amount of solid waste reaches the single feeding amount A, the feeding device stops conveying and sends a feeding completion signal to the main controller. The feeding interval time of the low-temperature magnetic pyrolysis device recorded by the main controller is reset to zero, and the feeding interval time of the low-temperature magnetic pyrolysis device is recorded again; S6. Repeat steps S4-S5. The feed control method for magnetized pyrolysis incineration equipment according to claim 5 is characterized in that: in step S4, when any low-temperature magnetized pyrolysis device satisfies the feed interval time ≥ t1, the real-time pyrolysis gas temperature < T2 and the real-time pyrolysis gas oxygen concentration ≥ B, the main controller determines that the low-temperature magnetized pyrolysis device needs to be fed, and the main controller sends a feeding instruction to the feeding device, and the feeding device transports solid waste to the low-temperature magnetized pyrolysis device. The feeding control method of the magnetized pyrolysis incineration equipment according to claim 5 is characterized in that: in step S4, when any low-temperature magnetized pyrolysis device satisfies the feeding interval time ≥ t1, the real-time pyrolysis gas temperature < T2 and the real-time pyrolysis gas oxygen concentration ≥ B, the main controller determines that the low-temperature magnetized pyrolysis device needs to be fed, and the main controller gives an alarm to prompt the manual operation of the feeding device to feed.