CN111853799A - Volume reduction device and method for recycling and utilization of volume reduction derived gas - Google Patents

Abstract

The invention discloses a volume reduction device and a volume reduction derived gas recycling treatment method thereof, which can treat and recycle derived gas generated by thermal decomposition of waste. The volume reduction device at least comprises: the system comprises a reaction chamber, a first oxygen content sensor, a derived gas processing module, a second oxygen content sensor, a first electric valve, a controller, a pipeline system and a circuit system. The volume-reduced derivative gas recycling treatment method comprises the following steps: using the reaction chamber to perform low-temperature fumigation at low oxygen concentration to decompose the waste; utilizing the derived gas processing module to perform a derived gas processing procedure on the derived gas exhausted from the reaction chamber so as to output a recovered gas; the controller is used for controlling the operation state of the first electrovalve connected with the reaction chamber so as to determine the injection amount of the recovered gas entering the reaction chamber.

Description

Volume reduction device and method for recycling and utilization of volume reduction derived gas

technical field

The present invention relates to a volume reduction technology, in particular to a volume reduction device that can process and recycle the derived gas generated by thermal decomposition of waste and a volume reduction derived gas recovery and treatment method therefor .

Background technique

In today's technologically advanced society, it has brought people novel, fast and convenient material enjoyment, but it has also led to an increase in the amount of waste every year. Waste reduction treatment, which is called volume reduction.

The general volume reduction technology is nothing more than the use of compression, cutting, grinding, concentration, thermal decomposition and other treatment methods to achieve the purpose of waste reduction, and among the above treatment methods, thermal decomposition has the most volume reduction effect.

At present, there is a volume reduction device such as Taiwan Invention Patent Publication No. 200602134 and Taiwan Utility Model Patent No. M284831, that is, the waste reduction operation is performed by thermal decomposition; the latter volume reduction device usually has a A reaction chamber (also called a fumigation chamber), which must be injected with oxygen, so that the reaction chamber can perform low-temperature fumigation at low oxygen concentrations to decompose waste. While the reaction chamber will generate a large amount of exhaust gas when the waste is thermally decomposed to reduce the volume, in the conventional volume reduction device, the generated exhaust gas will be purified, combusted and filtered after processing procedures. , and then discharge the gas to meet environmental protection requirements. However, the treated gas actually contains reusable resources such as oxygen, but it is not recycled or stored in the prior art, which is a pity.

SUMMARY OF THE INVENTION

In view of the above-mentioned problems of the prior art, the purpose of the present invention is to provide a volume reduction device that can process and recycle the derived gas generated by thermal decomposition of waste, and a volume reduction derived gas recycling treatment method thereof. .

According to the purpose of the present invention, a volume reduction device is proposed, which at least includes: a reaction chamber, a first oxygen content sensor, a derived gas processing module, a second oxygen content sensor, a first electrical A valve, a controller, a pipeline system and a circuit system; wherein, the first oxygen content sensor is disposed inside the reaction chamber, and the controller is electrically connected to the first oxygen content sensor with the circuit system The derived gas processing module is connected to the reaction chamber by the piping system; the second oxygen sensor is connected to the derived gas processing module by the piping system, and the controller is electrically connected to the circuit system Connect the second oxygen sensor; one end of the first electrical valve is connected to the second oxygen sensor by the pipeline system, and the other end of the first electrical valve is connected to the reaction by the pipeline system The controller is electrically connected to the first electric valve with the circuit system.

According to the above technical features, the volume reduction device further includes a first fan, the first fan is connected to an inlet end of the reaction chamber through the pipeline system, and the controller is electrically connected to the first fan through the circuit system .

According to the above technical features, the first electric valve is a two-way solenoid valve with an inlet end and an outlet end, the inlet end is connected to the second oxygen sensor by the pipeline system, and the outlet end is connected by the pipeline system. The system is connected to the other inlet end of the reaction chamber.

According to the above technical features, the volume reduction device further comprises a second electric valve and an air supply mechanism; the second electric valve is a two-way solenoid valve, and one end of the second electric valve is connected to the first electric valve through the pipeline system. One end of the valve is connected to the reaction chamber, the gas supply mechanism is connected to the other end of the second electric valve through the pipeline system, and the second electric valve is electrically connected to the controller through the circuit system.

According to the above technical features, the capacity reducing device further includes a first fan, the controller is electrically connected to the first fan with the circuit system; a solenoid valve, a first end of the first electric valve is one of the two inlet ends and is connected to the first fan by the pipeline system, a second end of the first electric valve is two The other one of the inlet ends is connected to the second oxygen sensor by the pipeline system, a third end of the first electric valve is the outlet end and the pipeline system is connected to the reaction an inlet end of the chamber.

According to the above technical features, the volume reduction device further comprises a first fan and a second fan, the first fan is connected to an inlet end of the reaction chamber by the piping system, the second fan is connected by the piping system Connected between the reaction chamber and the derived gas processing module, the controller is electrically connected to the first fan respectively with the circuit system.

According to the above technical features, the volume reduction device further includes a heat exchanger, the heat exchanger is connected to the derived gas processing module through the pipeline system, and the second oxygen content sensor is connected to the heat exchange through the pipeline system device.

According to the above technical features, the controller sets a threshold value of reaction oxygen content.

According to the above technical features, the oxygen content threshold of the reaction is between 12% and 18%.

According to the purpose of the present invention, a volume reduction derivative gas recovery and utilization treatment method is further proposed, which is suitable for a volume reduction device as described above. The volume reduction derivative gas recovery and utilization treatment method comprises the following steps: using the reaction chamber in a Perform a low-temperature fumigation under low oxygen concentration to decompose a waste, the low oxygen concentration means that the oxygen concentration is equal to or less than 18% by volume, and the low-temperature fumigation means that the temperature is lower than 300 degrees Celsius; using the derivative gas to treat the mold The group performs a derivative gas processing procedure on the derivative gas discharged from the reaction chamber to output a recovered gas; utilizes the controller to detect the oxygen content of a reaction chamber in the reaction chamber according to the detection of the first oxygen content sensor, and a recovered gas oxygen content in the recovered gas detected by the second oxygen content sensor, after being processed and calculated by the controller, the controller controls the operation of the first electrical valve connected to the reaction chamber state, and then determine the injection amount of the recovered gas into the reaction chamber.

According to the above technical features, the method for recycling the volume reduction derived gas further comprises the following steps: using the controller to detect the oxygen content of the reaction chamber and the second oxygen content in the reaction chamber according to the first oxygen content sensor The oxygen content of the recycled gas detected by the oxygen content sensor in the recycled gas is processed and calculated by the controller, and the controller controls the operation state of a first fan connected to the reaction chamber, and then determines the The first fan delivers a delivery amount of the first oxygen-containing gas to the reaction chamber.

According to the above technical features, the derivative gas processing procedure sequentially includes performing a purification operation with a gas processing mechanism, performing a combustion operation with a combustion chamber, and performing a filtering operation with a filter.

Continuing from the above, the main function of the present invention is to recover and process the derived gas generated during the thermal decomposition of wastes in the reaction chamber. The recovery gas containing oxygen that is valuable and can be recycled into the reaction chamber. Furthermore, another function of the present invention is that the first oxygen content sensor can be used to monitor the oxygen content in the reaction chamber, and the second oxygen content sensor can be used to monitor the oxygen content of the recovered gas, and further control can be used. According to the data measured by the first oxygen content sensor and the second oxygen content sensor, the device controls the injection volume of the external gas and the recovery gas respectively injected into the reaction chamber. In this way, the reaction chamber is used in the deployment of the gas source. Under the control, fumigation can be carried out within a predetermined oxygen concentration range, so as to obtain the best thermal decomposition reaction efficiency and achieve more volume reduction effect.

Description of drawings

FIG. 1 is a schematic diagram of a first embodiment of the volume reduction device of the present invention.

2 is a schematic diagram of a gas processing mechanism of a derived gas processing module of the volume reduction device of the present invention.

3 is a schematic diagram of a combustion chamber of a derivative gas processing module of the volume reduction device of the present invention.

4 is a schematic diagram of a filter of a derived gas processing module of the volume reduction device of the present invention.

FIG. 5 is a schematic diagram of the heat exchanger of the volume reduction device of the present invention.

FIG. 6 is a schematic diagram of a second embodiment of the volume reduction device of the present invention.

FIG. 7 is a schematic diagram of a partial structure of the second embodiment of the volume reduction device of the present invention.

FIG. 8 is a schematic diagram of the second electric valve and the air supply mechanism of the volume reduction device of the present invention.

FIG. 9 is a schematic diagram of a third embodiment of the volume reduction device of the present invention.

FIG. 10 is a flow chart of the first embodiment of the method for recycling and utilizing the volume reduction derived gas according to the present invention.

FIG. 11 is a flow chart of the second embodiment of the method for recycling and utilizing the volume reduction derived gas according to the present invention.

Description of drawing numbers:

10 First fan

20 reaction chamber

21 buffer

30 First oxygen sensor

40 Temperature sensor

50 height sensor

60 Second fan

70 Derived Gas Handling Modules

71 Gas Handling Mechanisms

711 Washing unit

712 Electrostatic Precipitation Unit

72 Combustion chamber

73 Filters

731 Glass wool

732 Microporous Breathable Membrane

733 Activated carbon cotton cloth

80 Heat Exchanger

90 Second oxygen sensor

100 first electric valve

101 First End

102 Second end

103 Third End

200 controllers

300 Second electro-valve

400 Gas Supply Mechanism

E circuit system

P piping system

S1, S1’ Volume reduction steps

S2, S2' Derivative Gas Treatment Steps

S3’ hot swap step

S4, S4' recovery gas injection step.

Detailed ways

The volume reduction device and the volume reduction derivative gas recovery and utilization treatment method of the present invention can mainly process and recycle the derivative gas generated by the thermal decomposition of waste, and can control the oxygen concentration during the thermal decomposition operation to achieve optimal Capacity reduction efficiency and cost control. Please refer to FIG. 1 , which is a schematic diagram of a first embodiment of the volume reduction device of the present invention. As shown in the figure, the volume reduction device includes: a first fan 10 , a reaction chamber 20 , and a first oxygen content sensor 30, a temperature sensor 40, a height sensor 50, at least one second fan 60, a derived gas processing module 70, a heat exchanger 80, a second oxygen sensor 90, a first An electric valve 100 and a controller 200 . In particular, for the sake of completeness of description, the embodiment of the present invention takes an example in which the volume reduction device includes a plurality of the second fans 60 for convenience of description.

In the first embodiment, the first fan 10 is connected to one of the inlet ends of the reaction chamber 20 by a piping system P, the controller 200 is electrically connected to the first fan 10 by a circuit system E, the The first fan 10 can be controlled by the controller 200 to turn on the first fan 10 to deliver a first oxygen-containing gas to the reaction chamber 20 , or the first fan 10 can be controlled by the controller 200 to turn off the first fan 10 . The blower 10 is operated to stop delivering the first oxygen-containing gas into the reaction chamber 20 . The first oxygen-containing gas conveyed by the first fan 10 may be air in the atmosphere. Generally speaking, the volume percentage of air on the earth is mainly composed of nitrogen (about 78.09%), oxygen (about 20.95%), argon (about 20.95%) about 0.93%), carbon dioxide (about 0.03%) and other trace gases. The first oxygen-containing gas delivered by the first fan 10 can also be the first oxygen-containing gas provided by a commercially available oxygen cylinder or an oxygen generator, and generally contains more oxygen by volume percentage than air. The first oxygen-containing gas delivered by the first fan 10 has a first oxygen-containing concentration, and the first oxygen-containing concentration refers to the oxygen concentration (volume percentage) in the first oxygen-containing gas, so preferably the first oxygen-containing gas - The oxygen concentration is greater than or equal to the oxygen concentration of air (about 20.95%). Considering the cost, it is optimal that the first oxygen-containing gas delivered by the first fan 10 is air in the atmosphere, so the first oxygen-containing concentration is equal to the oxygen-containing concentration of the air.

After the first oxygen-containing gas is injected into the reaction chamber 20, low-temperature fumigation can be performed under low oxygen concentration, so as to reduce the volume of waste through thermal decomposition. The concentration refers to at least lower than the first oxygen concentration, and the aforementioned low temperature refers to lower than 300 degrees Celsius. Preferably, the aforementioned low oxygen concentration means that the oxygen concentration is equal to or less than 18% (volume percentage).

The first oxygen content sensor 30 is disposed inside the reaction chamber 20 , and can be used to detect the oxygen content of a reaction chamber of the reaction chamber 20 , and the reaction chamber oxygen content refers to the gas environment in the reaction chamber 20 . Oxygen concentration (volume percentage), the controller 200 is electrically connected to the first oxygen content sensor 30 with the circuit system E, and the first oxygen content sensor 30 uses the measured oxygen content of the reaction chamber Data is passed to the controller 200 for subsequent processing and calculations. The temperature sensor 40 is disposed in the reaction chamber 20, and can be used to detect a temperature of a reaction chamber inside the reaction chamber 20. The controller 200 is electrically connected to the temperature sensor 40 through the circuit system E. The temperature The sensor 40 transmits the measured data of the reaction chamber temperature to the controller 200 for subsequent processing and calculation. The height sensor 50 is disposed in the reaction chamber 20 and can be used to sense a volume reduction height of the waste placed in the reaction chamber 20 , and the volume reduction height refers to the height of the waste during the current volume reduction operation. , the controller 200 is electrically connected to the height sensor 50 by the circuit system E, and the height sensor 50 transmits the measured data of the reduced volume height to the controller 200 for subsequent processing and calculation.

During the volume reduction operation, a reaction oxygen content threshold and a reaction temperature threshold may be set in the controller 200 ; the reaction oxygen content threshold refers to the preset oxygen concentration of the gas environment in the reaction chamber 20 For example, the reaction oxygen content threshold is between 12% and 18%; the reaction temperature threshold refers to the preset sintering temperature in the reaction chamber 20 , for example, the reaction temperature threshold is less than 300 degrees Celsius. In further application, the reaction chamber 20 may further include a buffer zone 21, the second fan 60 is connected between the reaction chamber 20 and the buffer zone 21 by the pipeline system P, and the buffer zone 21 and the buffer zone 21 are connected. The pipeline system P is used to connect the derived gas processing modules 70, and the controller 200 is electrically connected to the second fan 60 through the circuit system E; the second fan 60 is controlled by the controller 200 to turn on the second fan 60. The fan 60 is operated to pump air from the reaction chamber 20 , or the second fan 60 is controlled by the controller 200 to turn off the operation of the second fan 60 to stop the pumping of the reaction chamber 20 . If the oxygen content of the reaction chamber 20 is too high during the volume reduction operation, for example, the controller 200 compares the oxygen content of the reaction chamber from the first oxygen content sensor 30 and finds that the reaction chamber contains oxygen The amount exceeds the upper limit (18%) of the reaction oxygen content threshold; or, when the reaction chamber 20 is in the process of reducing the volume due to excessive temperature, for example, the controller 200 compares the output from the temperature sensor The reaction chamber temperature of 40 and it is found that the reaction chamber temperature exceeds the upper limit of the reaction temperature threshold (300 degrees Celsius); especially, when the reaction chamber 20 produces open flame combustion and a large amount of gas, the second fan 60 is controlled by the The device 200 controls to turn on the second fan 60 to quickly extract the gas in the reaction chamber 20 to the buffer zone 21, so that the buffer zone 21 can provide the discharge and retention of the evacuated gas, thereby reducing the reaction chamber. The oxygen content of the gas within 20 until the fire is extinguished. The buffer zone 21 and the derived gas processing module 70 can be communicated with the pipeline system P, and the gas extracted from the buffer zone 21 can be sent to the derived gas through the pipeline system P Gas treatment module 70 for processing and recycling.

In addition, the second fan 60 can also be directly connected between the reaction chamber 20 and the derived gas processing module 70 through the pipeline system P, and the second fan 60 can pass through the controller through the pipeline system P 200 is controlled to turn on the second fan 60 to run, so the derivative gas generated by the thermal decomposition of waste in the reaction chamber 20 can be discharged and transported to the derivative gas processing module 70; The reaction chamber 20 has a ventilation effect, so that a negative pressure can be formed inside the reaction chamber 20 . The formation of negative pressure inside the reaction chamber 20 is beneficial to allow the first oxygen-containing gas to be transported into the reaction chamber 20 , so as to save the energy consumption of the first fan 10 during operation.

The derived gas processing module 70 can be used to perform purification, combustion and filtering operations on the derived gas discharged from the reaction chamber 20 , and the derived gas processing module 70 is connected to the reaction chamber 20 by the pipeline system P. Specifically, the derived gas processing module 70 includes a gas processing mechanism 71 , a combustion chamber 72 and a filter 73 . The gas processing mechanism 71 is connected to the second fan 60 through the pipeline system P, and the combustion chamber is connected to the second fan 60 . 72 is connected to the gas processing mechanism 71 by the piping system P in sequence, and the filter 73 is connected to the combustion chamber 72 by the piping system P in sequence. The gas treatment mechanism 71 can be an inertial settling tank, a washing tower or a spray tower, and its function is to purify the derived gas from the reaction chamber 20. The derived gas discharged from the reaction chamber 20 contains nitrogen oxides, carbon monoxide, hydrocarbons, Oxygen, dust particles and other general waste gas or volatile organic compounds (Volatile Organic Compounds, VOCs); wherein, when the second fan 60 sends the derived gas from the reaction chamber 20 to the gas processing mechanism 71, it can be used first A water washing unit 711 of the gas processing mechanism 71 washes off the dust particles derived from the gas, and the dust particles that cannot pass through the water washing unit 711 can be washed off by using an electrostatic force located above the water washing unit 711 of the gas processing mechanism 71 . The dust removal unit 712 is used for adsorption, as shown in FIG. 2 . The gas treated by the gas treatment mechanism 71 can be injected into the combustion chamber 72. As shown in FIG. 3, the combustion chamber 72 can be ignited with fuel such as gas, natural gas or kerosene to burn with an open flame to remove residual gas in the derived gas. Combustible gas (gas from the derivative gas discharged from the reaction chamber 20 and processed by the gas processing mechanism 71 , such as nitrogen oxides, carbon monoxide, hydrocarbons). As shown in FIG. 4 , the gas processed by the combustion chamber 72 can pass through the filter 73 . The filter 73 includes glass wool 731 , a microporous gas permeable membrane 732 and an activated carbon cotton cloth 733 stacked in sequence, so that the filter 73 can The completely combusted derivative gas (including nitrogen, carbon dioxide, oxygen and water) and a very small amount of dust particles generated after being burned in the combustion chamber 72 are filtered. In other words, the derivative gas originally discharged from the reaction chamber 20 contains nitrogen oxides, carbon monoxide, hydrocarbons, oxygen, dust particles and other general exhaust gas or volatile organic compounds (Volatile Organic Compounds, VOCs). After the gas processing module 70 is processed, the filter 73 discharges the gas including nitrogen, carbon dioxide, oxygen and water.

As shown in FIG. 5 , the heat exchanger 80 is connected to the filter 73 of the derived gas processing module 70 by the piping system P, and the outer wall of the piping system P is surrounded by water in the heat exchanger 80 Therefore, the heat exchanger 80 can be used to cool the nitrogen, carbon dioxide, oxygen and water vapor discharged from the filter 73 to condense the water vapor into liquid water to remove the water vapor, and then convert and output a recovered gas, wherein , the recovered gas may contain nitrogen, carbon dioxide and oxygen.

It should be noted that the heat exchanger 80 is not necessary in the volume reduction device of the present invention, for example, the second oxygen sensor 90 can be connected to the pipeline system P of the derived gas processing module 70 The filter 73 does not need the heat exchanger 80. At this time, the exhaust from the filter 73 contains nitrogen, carbon dioxide, oxygen and water, which is the recovered gas.

Please refer to FIG. 1 again, the second oxygen content sensor 90 is connected to the output end of the heat exchanger 80 by the piping system P, which can be used to detect a recycled gas oxygen content of the recycled gas, the recycled gas The oxygen content refers to the oxygen concentration (volume percentage) of the recovered gas. The controller 200 is electrically connected to the second oxygen content sensor 90 through the circuit system E, and the second oxygen content sensor 90 will measure the measured oxygen content. The data of the oxygen content of the recovered gas is sent to the controller 200 for subsequent processing and calculation. In the first embodiment, the first electro-valve 100 is a two-way solenoid valve (having an inlet end and an outlet end), and one end (the inlet end) of which is connected to the second oxygen sensor via the piping system P 90, the other end (outlet end) of the first electric valve 100 is connected to the other inlet end of the reaction chamber 20 through the piping system P, and the controller 200 is electrically connected to the first electric valve through the circuit system E. The valve 100, the first electro-valve 100 is controlled by the controller 200 to open the first electro-valve 100 to allow the recovery gas to be delivered into the reaction chamber 20, or the first electro-valve 100 is controlled by the controller 200 The first electrical valve 100 can be closed to prevent the recovery gas from being delivered into the reaction chamber 20 .

To further illustrate, the controller 200 is electrically connected to the first fan 10 , the first oxygen sensor 30 , the second oxygen sensor 90 and the first electric valve 100 , and the controller 200 can The first oxygen-containing concentration of the first oxygen-containing gas delivered by the first fan 10 , the oxygen content of the reaction chamber in the reaction chamber 20 detected by the first oxygen content sensor 30 , and the first oxygen content The oxygen content of the recovered gas detected by the second oxygen content sensor 90 is processed and calculated by the controller 200 to control the operation status of the first fan 10 and the first electric valve 100 . As a result, the amount of the first oxygen-containing gas entering the reaction chamber 20 through the first fan 10 and the amount of the recovered gas injected into the reaction chamber 20 through the first electrical valve 100 can be controlled respectively. So that the reaction chamber 20 can be maintained within a predetermined oxygen content range (ie, the above-mentioned reaction oxygen content threshold) to perform the thermal decomposition operation, so as to achieve the best volume reduction efficiency.

For example, after testing, it was found that the optimal volume reduction efficiency is when the reaction oxygen content threshold is between 12% and 18%. In this embodiment, the first oxygen-containing gas delivered by the first fan 10 is air in the atmosphere, the first oxygen-containing concentration is equal to 20.95% of the oxygen-containing concentration of air, and the first oxygen-containing concentration (20.95%) of the data has been transferred to the controller 200. During the volume reduction operation, when the first oxygen content sensor 30 detects that the oxygen content of the reaction chamber 20 is 10%, and transmits the data of the oxygen content of the reaction chamber to the controller 200 , when the second oxygen content sensor 90 detects that the oxygen content of the recovered gas is 2%, and transmits the data of the oxygen content of the recovered gas to the controller 200 . The controller 200 finds that the oxygen content of the reaction chamber is 10% lower than the lower limit (12%) of the reaction oxygen content threshold through comparison and calculation, and then the controller 200 processes and calculates after the controller 200 controls the The first electrical valve 100 is continuously opened so that the recovered gas can pass through the first electrical valve 100 and be continuously injected into the reaction chamber 20 . At this time, the treatment and recovery cycle of the derived gas generated by thermal decomposition of the waste has been achieved. At the same time, the controller 200 controls to turn on the first fan 10 to deliver the first oxygen-containing gas to the reaction chamber 20 until the oxygen content of the reaction chamber of the reaction chamber 20 is supplemented to meet the The reaction oxygen content threshold (between 12% and 18%), while maintaining the best volume reduction efficiency.

Please refer to FIG. 6 , which is a schematic diagram of a second embodiment of the volume reduction device of the present invention, and refer to FIGS. 7 and 8 together. Compared with the first embodiment, the difference of the volume reduction device in the second embodiment is that in the second embodiment, the volume reduction device further includes a second electric valve 300 and an air supply mechanism 400 . The second electro-valve 300 is a two-way solenoid valve (having an inlet end and an outlet end), and one end (outlet end) of the second electro-valve 300 is connected to the first electro-valve 100 and the One end of the reaction chamber 20 is connected, and the second electric valve 300 is electrically connected to the controller 200 through the circuit system E. The air supply mechanism 400 is connected to the other end (inlet end) of the second electric valve 300 by the pipeline system P, and the air supply mechanism 400 can supply the oxygen concentration greater than or equal to the air when the second electric valve 300 is opened (20.95%) of a first oxygen-containing gas to the reaction chamber 20. The second oxygen-containing gas delivered by the air supply mechanism 400 has a second oxygen-containing concentration, and the second oxygen-containing concentration refers to the oxygen concentration (volume percentage) in the second oxygen-containing gas, so preferably the first oxygen-containing gas The oxygen concentration is greater than or equal to the oxygen concentration of air (about 20.95%). The controller 200 can detect the content of the reaction chamber in the reaction chamber 20 according to the first oxygen-containing concentration of the first oxygen-containing gas delivered by the first fan 10 and the first oxygen-containing sensor 30 . the oxygen content, the oxygen content of the recycled gas in the recycled gas detected by the second oxygen content sensor 90, and the second oxygen-containing concentration of the second oxygen-containing gas delivered by the gas supply mechanism 400, After being processed and calculated by the controller 200 , the operation states of the first fan 10 , the first electric valve 100 and the second electric valve 300 are controlled. In this way, the first oxygen-containing gas passes through the first fan 10 . The amount of gas entering the reaction chamber 20, the amount of the recovered gas injected into the reaction chamber 20 through the first electrical valve 100, and the gas entering the second oxygen-containing gas into the reaction chamber 20 through the gas supply mechanism 400 The amount can be controlled separately, so as to achieve the purpose of processing and recycling the derived gas generated by thermal decomposition of the waste, so that the reaction conditions of the reaction chamber 20 can be maintained at the reaction oxygen content threshold (intermediate between 12% and 18%) while maintaining the best volume reduction efficiency. Specifically, the air supply mechanism 400 may be a commercially available oxygen cylinder, an oxygen generator or a fan similar to the first fan 10 , but not limited thereto.

Please also refer to FIG. 9 , which is a schematic diagram of a third embodiment of the volume reduction device of the present invention. The structure of the volume reduction device of the third embodiment is similar to that of the first embodiment, the difference lies in that the first electro-valve 100 is a three-way solenoid valve (a confluence valve, having two inlet ends and one outlet end), the first electro-valve 100 is a three-way solenoid valve A first end 101 (an inlet end) of the electric valve 100 is connected to the first fan 10 by the piping system P, and a second end 102 (another inlet end) of the first electric valve 100 is connected to the piping system P is connected to the second oxygen sensor 90 , and a third end 103 (outlet end) of the first electro-valve 100 is connected to an inlet end of the reaction chamber 20 through the piping system P. The controller 200 can detect the content of the reaction chamber in the reaction chamber 20 according to the first oxygen-containing concentration of the first oxygen-containing gas delivered by the first fan 10 and the first oxygen-containing sensor 30 . The oxygen content and the oxygen content in the recycled gas detected by the second oxygen content sensor 90 are processed and calculated by the controller 200 to control the first fan 10 and the first electric valve 100, so that the first oxygen-containing gas enters the first fan 10, the first end 101 of the first electric valve 100 and the third end 103 of the first electric valve The amount of gas in the reaction chamber 20 can be controlled, and the amount of the recovered gas entering the reaction chamber 20 through the second end 102 of the first electrical valve 100 and the third end 103 of the first electrical valve 100 can be controlled. Being controlled, this enables the reaction chamber 20 to maintain a predetermined oxygen content range (ie, the aforementioned reaction oxygen content threshold) to perform the thermal decomposition operation, so as to achieve the best volume reduction efficiency. For example, the controller 200 can control the first end 101 to be opened by a quarter, the second end 102 to be opened by a half, and the third end 103 to be fully opened, so that the recovered gas and the first The oxygen gas is mixed inside the first electric valve 100 and then injected into the reaction chamber 20 from the third end 103 .

Please refer to FIG. 10 , which is a flowchart of the first embodiment of the method for recycling and utilizing the volume-reducing derivative gas of the present invention, which can utilize the aforementioned volume-reducing device to perform the method for recycling and utilizing the volume-reducing derivative gas. The volume reduction derivative gas recovery and utilization treatment method mainly includes the following processes.

Volume reduction step S1 : using the reaction chamber 20 to perform a low temperature fumigation under a low oxygen concentration to decompose a waste. The low oxygen concentration means that the oxygen concentration is equal to or less than 18% (volume percentage), and the low temperature fumigation means that the temperature is lower than 300 degrees Celsius.

Derivative gas processing step S2 : using the derived gas processing module 70 to perform a derived gas processing procedure on the derived gas discharged from the reaction chamber 20 to convert and output the recovered gas. The derivative gas processing procedure sequentially includes performing a purification operation with the gas processing mechanism 71 , performing a combustion operation with the combustion chamber 72 , and performing a filtering operation with the filter 73 .

Recycled gas injection step S4 : using the controller 200 according to the oxygen content of the reaction chamber in the reaction chamber 20 detected by the first oxygen content sensor 30 and the detection of the second oxygen content sensor 90 After the oxygen content of the recovered gas in the recovered gas is processed and calculated by the controller 200, the controller 200 controls the operation state of the first electrical valve 100 connected to the reaction chamber 20, and then determines the amount of the recovered gas to enter The injection volume of the reaction chamber 20 .

Alternatively, please refer to FIG. 11 , which is a flow chart of the second embodiment of the method for recycling and utilizing the volume reduction derived gas according to the present invention. The method for recycling and utilizing the volume reduction derived gas mainly includes the following processes.

Volume reduction step S1 ′: using the reaction chamber 20 to perform a low temperature fumigation under a low oxygen concentration to decompose a waste; the low oxygen concentration means that the oxygen concentration is equal to or less than 18% (volume percentage), the low temperature fumigation Refers to the temperature below 300 degrees Celsius.

Derivative gas treatment step S2 ′: using the derivative gas treatment module 70 to perform a derivative gas treatment procedure on the derivative gas discharged from the reaction chamber 20 ; the derivative gas treatment procedure sequentially includes performing a purification operation with the gas treatment mechanism 71 , Use the combustion chamber 72 to perform a combustion operation and use the filter 73 to perform a filtering operation.

Heat exchange step S3': use the heat exchanger 80 to cool the gas processed by the derivative gas treatment procedure of the derivative gas treatment module 70 to remove the moisture contained in the gas, and then convert and output the recovered gas.

Recycled gas injection step S4 ′: using the controller 200 according to the oxygen content of the reaction chamber in the reaction chamber 20 detected by the first oxygen content sensor 30 and the detection of the second oxygen content sensor 90 Measure the oxygen content of the recovered gas in the recovered gas, and after processing and calculation by the controller 200, the controller 200 controls the operation state of the first electrical valve 100 connected to the reaction chamber 20, and then determines the recovered gas The injection volume into the reaction chamber 20 .

In one embodiment, the above-mentioned method for recycling and utilizing the volume-reduced derived gas may further include the following steps: utilizing the controller 200 according to the first oxygen content sensor 30 and the second oxygen content sensor 90 respectively detected the oxygen content of the reaction chamber and the oxygen content of the recovered gas to control the operation state of the first fan 10 connected to the reaction chamber 20, and then determine that the first fan 10 delivers the first oxygen-containing air The delivery volume of the body to the reaction chamber 20. Furthermore, the controller 200 can also be used to control the oxygen content of the reaction chamber and the oxygen content of the recovered gas detected by the first oxygen content sensor 30 and the second oxygen content sensor 90 respectively. The operating state of the second electrical valve 300 connected to the output end of the first electrical valve 100 determines the delivery amount of the second oxygen-containing gas delivered by the gas supply mechanism 400 to the reaction chamber 20 through the second electrical valve 300 .

In another embodiment, the above-mentioned method for recycling and utilizing the volume-reduced derived gas further includes the following steps: utilizing the controller 200 according to the first oxygen content sensor 30 and the second oxygen content sensor 90 The oxygen content of the reaction chamber and the oxygen content of the recovered gas are detected respectively, to control the operation state of the first fan 10 connected to the first electric valve 100, and then determine that the first fan 10 passes through the first electric valve 100. The valve 100 delivers the delivery amount of the first oxygen-containing gas to the reaction chamber 20 .

Specifically, the volume reduction device and the volume reduction derived gas recovery and utilization treatment method of the present invention mainly have the following characteristics.

1. It can recycle the derived gas generated by the thermal decomposition of waste in the reaction chamber, and the treatment methods include purification, combustion, filtration and water condensation in sequence, so as to generate reusable value and can be injected in a cycle. Oxygen-containing recovery gas from the reaction chamber.

2. The first oxygen content sensor can be used to monitor the oxygen content in the reaction chamber, and the second oxygen content sensor can be used to monitor the oxygen content of the recovered gas, and the controller can be further used according to the first oxygen content sensor. And the data measured by the second oxygen content sensor to control the injection volume of the external gas (the first oxygen-containing gas, the second oxygen-containing gas) and the recovery gas into the reaction chamber respectively, whereby the reaction chamber is in the gas Under the deployment control of the source, fumigation can be carried out within a predetermined oxygen concentration range to obtain the best thermal decomposition volume reduction efficiency, and to ensure an appropriate amount of gas entering the reaction chamber, unnecessary waste can be avoided.

Claims (14)

1. A volume reduction device, characterized in that it at least comprises: a reaction chamber (20), a first oxygen content sensor (30), a derivative gas processing module (70), a second oxygen content sensor measuring device (90), a first electric valve (100), a controller (200), a pipeline system (P) and a circuit system (E); wherein, The first oxygen content sensor (30) is disposed inside the reaction chamber (20), and the controller (200) is electrically connected to the first oxygen content sensor (30) through the circuit system (E); The derived gas processing module (70) is connected to the reaction chamber (20) by the pipeline system (P); The second oxygen content sensor (90) is connected to the derived gas processing module (70) by the pipeline system (P), and the controller (200) is electrically connected to the second oxygen content by the circuit system (E). an oxygen sensor (90); One end of the first electric valve (100) is connected to the second oxygen sensor (90) through the pipeline system (P), and the other end of the first electric valve (100) is connected to the pipeline system (P). P) is connected to the reaction chamber (20), and the controller (200) is electrically connected to the first electric valve (100) with the circuit system (E). 2 . The volume reduction device according to claim 1 , wherein the volume reduction device comprises a first fan ( 10 ), and the first fan ( 10 ) is connected to the reaction chamber by the pipeline system (P). 3 . An intake end of (20), the controller (200) is electrically connected to the first fan (10) with the circuit system (E). 3. The volume reduction device according to claim 2, wherein the first electric valve (100) is a two-way solenoid valve with an inlet end and an outlet end, and the inlet end is connected to the pipeline system (P ) is connected to the second oxygen content sensor (90), and the outlet end is connected to the other inlet end of the reaction chamber (20) by the pipeline system (P). 4. The volume reduction device according to claim 3, wherein the volume reduction device comprises a second electric valve (300) and a gas supply mechanism (400); the second electric valve (300) is a two-way valve Solenoid valve, one end of the second electric valve (300) is connected to the end of the first electric valve (100) connected to the reaction chamber (20) by the pipeline system (P), and the gas supply mechanism (400) is connected to the reaction chamber (20). The pipeline system (P) is connected to the other end of the second electric valve (300), and the second electric valve (300) is electrically connected to the controller (200) through the circuit system (E). 5 . The volume reduction device according to claim 1 , wherein the volume reduction device comprises a first fan ( 10 ), and the controller ( 200 ) is electrically connected to the first fan through the circuit system (E). 6 . (10); And, the first electric valve (100) is a three-way solenoid valve with two inlet ends and an outlet end, and a first end (101) of the first electric valve (100) is two of the One of the inlet ends is connected to the first fan (10) by the pipeline system (P), and a second end (102) of the first electric valve (100) is one of the two inlet ends. The other inlet end is connected to the second oxygen sensor (90) by the pipeline system (P), and a third end (103) of the first electric valve (100) is the outlet end and is connected to the second oxygen sensor (90). The piping system (P) is connected to an inlet end of the reaction chamber (20). 6. The volume reduction device according to claim 1, wherein the volume reduction device comprises a first fan (10) and a second fan (60), the first fan (10) is connected to the pipeline system (P) is connected to an inlet end of the reaction chamber (20), the second fan (60) is connected to the reaction chamber (20) and the derived gas processing module (70) through the pipeline system (P) In between, the controller (200) is electrically connected to the first fan (10) with the circuit system (E), respectively. 7 . The volume reduction device according to claim 1 , wherein the volume reduction device comprises a heat exchanger ( 80 ), and the heat exchanger ( 80 ) is connected to the derived gas treatment by the pipeline system (P). 8 . The module (70), the second oxygen content sensor (90) is connected to the heat exchanger (80) by the piping system (P). 8 . The volume reduction device according to claim 1 , wherein the controller ( 200 ) sets a reaction oxygen content threshold. 9 . 9 . The volume reduction device of claim 8 , wherein the reaction oxygen content threshold is between 12% and 18%. 10 . 10. A method for recycling and utilizing a volume-reducing derivative gas, characterized in that it is suitable for a volume-reducing device as claimed in claim 1, and the method for recycling and utilizing a volume-reducing derivative gas comprises the following steps: Using the reaction chamber (20) to perform a low-temperature fumigation under a low oxygen concentration to decompose a waste, the low oxygen concentration means that the oxygen concentration is equal to or less than 18% by volume, and the low-temperature fumigation means that the temperature is lower than Celsius 300 degrees; Using the derived gas processing module (70) to perform a derived gas processing procedure on the derived gas discharged from the reaction chamber (20) to output a recovered gas; Utilize the controller (200) to detect the oxygen content of a reaction chamber in the reaction chamber (20) according to the first oxygen content sensor (30) and the oxygen content of the second oxygen content sensor (90) The oxygen content of a recovered gas in the recovered gas is detected, and after being processed and calculated by the controller (200), the controller (200) controls the first electric valve (100) connected to the reaction chamber (20) the operating state, and then determine the injection amount of the recovered gas into the reaction chamber (20). 11. The method for recycling and utilizing the volume-reduced derivative gas according to claim 10, wherein the method for recycling and utilizing the volume-reduced derivative gas comprises the following steps: using the controller (200) to sense the first oxygen content The oxygen content of the reaction chamber in the reaction chamber (20) detected by the device (30) and the oxygen content of the recovered gas in the recovered gas detected by the second oxygen content sensor (90), through the After processing and calculation by the controller (200), the controller (200) controls the operation state of a first fan (10) connected to the reaction chamber (20), and then determines that the first fan (10) transports a first fan (10). Delivery of oxygen-containing gas to the reaction chamber (20). 12 . The method for recycling and utilizing volume reduction derived gas according to claim 10 , wherein the controller ( 200 ) is set with a reaction oxygen content threshold. 13 . 13 . The method of claim 12 , wherein the reaction oxygen content threshold is between 12% and 18%. 14 . 14. The method according to claim 10, characterized in that the derivative gas processing procedure comprises sequentially performing a purification operation with a gas processing mechanism (71), and performing a purification operation with a combustion chamber (72) in sequence. A combustion operation is performed and a filtering operation is performed with a filter (73).

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