Waste disposal system

Abstract

The present invention proposes a garbage disposal system, comprising a garbage pretreatment subsystem, a first pyrolysis device, a gas diverter, and a cooling and purification subsystem. The garbage disposal system proposed by the present invention uses the first pyrolysis device to create an oxygen-free negative pressure environment for garbage pyrolysis. The first burner only serves as an ignition device and does not support combustion to reduce exhaust emissions. After the first pyrolysis device is ignited, the downstream gas diverter efficiently utilizes the high-temperature heat generated after pyrolysis to reintroduce the hot gas into the first pyrolysis device, creating an oxygen-free negative pressure environment. This allows domestic garbage to fully burn under high-temperature, oxygen-free, negative pressure conditions, reducing exhaust emissions. Furthermore, the garbage is pretreated by the garbage pretreatment subsystem to improve the efficiency of garbage pyrolysis. Furthermore, the cooling and purification subsystem cools and purifies the pyrolysis exhaust to reduce pollution emissions.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage disposal, and in particular to a garbage disposal system. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Existing domestic waste disposal systems do not adequately treat waste combustion. Incineration systems require an oxygen-rich environment, requiring constant oxygen supply to the combustion furnace. Consequently, the resulting smoke and exhaust gases are complex. Furthermore, fuel (diesel or gasoline, etc.) is required for auxiliary combustion, generating significant exhaust gas and preventing the complete removal of smoke and particulate matter. Consequently, exhaust emissions are not treated thoroughly, resulting in impure exhaust. Summary of the Invention

[0004] The purpose of the present invention is to at least solve the problem that existing waste disposal systems do not burn waste sufficiently and emit high levels of pollution. This purpose is achieved through the following technical solutions:

[0005] The present invention proposes a garbage disposal system, comprising:

[0006] Garbage pre-processing subsystem, used for pre-processing garbage;

[0007] a first pyrolysis device, comprising a first pyrolysis chamber, a first inlet, a first outlet, a return air inlet, and a first burner, wherein the first inlet, the first outlet, and the return air inlet are all in communication with the first pyrolysis chamber, the first inlet is configured to receive waste pretreated by the waste pretreatment subsystem, and the first burner is configured to ignite waste in the first pyrolysis chamber;

[0008] a gas diverter having a diversion inlet, a first diversion outlet, and a second diversion outlet, wherein the diversion inlet is communicated with the first diversion outlet and the second diversion outlet respectively, the diversion inlet is also communicated with the first outlet, and the first diversion outlet is communicated with the reflux inlet;

[0009] A cooling and purification subsystem is communicated with the second diversion outlet, and the cooling and purification subsystem is used to cool and purify the tail gas generated by the gas diverter.

[0010] The waste disposal system proposed in this invention uses a first pyrolysis unit to create an oxygen-free, negative-pressure environment for waste pyrolysis. The first burner serves only as an ignition source and does not support combustion, thereby reducing exhaust emissions. After ignition, a downstream gas diverter efficiently utilizes the high-temperature heat generated by pyrolysis to re-introduce the hot gas back into the first pyrolysis unit, creating an oxygen-free, negative-pressure environment. This allows domestic waste to be fully burned under high-temperature, oxygen-free, negative-pressure conditions, thereby reducing exhaust emissions. Furthermore, a waste pretreatment subsystem pre-treats the waste to improve its pyrolysis efficiency. A cooling and purification subsystem cools and purifies the pyrolysis exhaust to reduce pollutant emissions.

[0011] In addition, the garbage disposal system according to the present invention may also have the following additional technical features:

[0012] In some embodiments of the present invention, the garbage disposal system also includes a second pyrolysis device, which is located between the first pyrolysis device and the gas diverter. The second pyrolysis device includes a second pyrolysis chamber, a second inlet, a second outlet and a second burner. The second inlet and the second outlet are both connected to the second pyrolysis chamber, the second inlet is also connected to the first outlet of the first pyrolysis chamber, the second outlet is connected to the diversion inlet, and the second burner is used to ignite garbage in the second pyrolysis chamber.

[0013] In some embodiments of the present invention, the first pyrolysis device further includes an air supply component, which is disposed inside the first pyrolysis chamber. The air supply component includes an air cavity, an air inlet, and an air outlet. The air inlet and the air outlet are both connected to the air cavity, and the air inlet is connected to the return air inlet.

[0014] In some embodiments of the present invention, the garbage disposal system also includes a blowing subsystem, which includes a heat exchanger and a blower. Part of the heat exchanger is arranged inside the second pyrolysis chamber, and the inlet of the heat exchanger is connected to the outlet of the blower. The first pyrolysis device also includes a blowing port, which is arranged on the radial side wall of the first pyrolysis chamber and is connected to the first pyrolysis chamber. The outlet of the heat exchanger is connected to the blowing port.

[0015] In some embodiments of the present invention, the garbage preprocessing subsystem includes a garbage shredding device, a conveying device and a preheating device. The conveying device is used to transport the garbage processed by the garbage shredding device to the first inlet. The preheating device is installed on the conveying device. The preheating device is provided with a preheating chamber, a preheating inlet and a preheating outlet. The preheating inlet and the preheating outlet are both connected to the preheating chamber, the preheating inlet is connected to the first diversion outlet, and the preheating outlet is connected to the reflux air inlet.

[0016] In some embodiments of the present invention, the cooling and purification subsystem includes at least one cyclone dust collector connected in sequence, and along the flow direction of the exhaust gas, the inlet of the cyclone dust collector located most upstream is connected to the second diversion outlet, and the cyclone dust collector includes a dust collector body and a first spray device, and the first spray device is arranged inside the dust collector body, and the first spray device is used to spray into the interior of the dust collector body.

[0017] In some embodiments of the present invention, the cooling and purification subsystem also includes a spray dust removal tower, which includes a tower body and a second spray device. The tower body is provided with a tower inlet and a tower outlet. Along the flow direction of the exhaust gas, the outlet of the cyclone dust collector located at the most downstream is connected to the tower inlet. The second spray device is arranged inside the tower body, and the second spray device is used to spray into the interior of the tower body.

[0018] In some embodiments of the present invention, the garbage disposal system also includes a dust removal subsystem, which includes a water pool, a purification device and a conveying device. At least one of the second pyrolysis device, the gas diverter, the cyclone dust collector and the spray dust removal tower is provided with a bottom dust outlet pipe, and the bottom dust outlet pipe extends into the water pool. The water pool is used to hold a water seal liquid that covers the bottom end of the bottom dust outlet pipe. The purification device is used to purify the water seal liquid. The conveying device is used to convey the water seal liquid to the first spray device and / or the second spray device.

[0019] In some embodiments of the present invention, the garbage disposal system further includes a first induced draft fan and a second induced draft fan, and the garbage disposal system further includes a harmless emission subsystem, the harmless emission subsystem includes a condenser and an activated carbon purifier, the inlet of the activated carbon purifier is connected to the tower body outlet, the outlet of the activated carbon purifier is connected to the inlet of the first induced draft fan, the inlet of the condenser is connected to the outlet of the first induced draft fan, and the outlet of the condenser is connected to the inlet of the second induced draft fan.

[0020] In some embodiments of the present invention, the garbage disposal system also includes a particle collection device, the first pyrolysis device also includes a first ash discharge hole and a rotating grate, the first ash discharge hole is arranged at the bottom of the first pyrolysis chamber, the first ash discharge hole is connected to the particle collection device, the rotating grate includes a rotating disk and a driving device, a second ash discharge hole is provided on the rotating disk, the rotating disk is rotatably arranged at the bottom of the first pyrolysis chamber, and the driving device is used to drive the rotating disk to rotate so that the second ash discharge hole is intermittently connected to the first ash discharge hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0022] Figure 1 Schematically shows a structural diagram of a garbage disposal system according to an embodiment of the present invention (the waterway portion and the garbage pre-treatment subsystem are not shown);

[0023] Figure 2 Schematically shows Figure 1 Schematic diagram of the local structure at A;

[0024] Figure 3 Schematically shows Figure 1 Schematic diagram of the local structure at B;

[0025] Figure 4 Schematically shows Figure 1 Schematic diagram of the local structure at C;

[0026] Figure 5 Schematically shows Figure 1 A schematic diagram of the partial structure of D (the first embodiment of the rotary grate);

[0027] Figure 6 Schematically shows a partial structural diagram of a second embodiment of a rotary grate according to an embodiment of the present invention;

[0028] Figure 7 Schematically shows Figure 1 Schematic diagram of the local structure at E;

[0029] Figure 8 Schematically shows a structural diagram of a waterway portion (pumping waterway) according to an embodiment of the present invention;

[0030] Figure 9 The structure diagram of the waterway portion (water pumping waterway) according to an embodiment of the present invention is schematically shown;

[0031] Figure 10 Schematically shows a schematic diagram of the gas splitter flow direction according to an embodiment of the present invention;

[0032] Figure 11 Schematically shows a structural diagram of a blowing subsystem according to an embodiment of the present invention;

[0033] The reference numerals are as follows:

[0034] 1000. Waste disposal system;

[0035] 100. First pyrolysis device; 11. First pyrolysis chamber; 12. First inlet; 13. First outlet; 14. Return air inlet; 15. First burner; 16. Air supply assembly; 161. Air chamber; 162. Air inlet; 163. Air outlet; 171. First row of ash holes; 172. Second row of ash holes; 173. Rotating disk; 174. Driving device; 175. Rotating shaft; 176. Transmission shaft; 177a. First bevel gear; 177b. Second bevel gear; 178. Support disk; 179. Baffle;

[0036] 200, second pyrolysis device; 21, second pyrolysis chamber; 22, second inlet; 23, second outlet; 24, second burner;

[0037] 300, gas diverter; 31, diversion inlet; 32, first diversion outlet; 33, second diversion outlet; 301, hot air filter;

[0038] 40. Heat exchanger; 41. Blower; 42. Air outlet;

[0039] 50. Trash bin; 51. First conveyor; 52. Trash shredding device; 53. Second conveyor; 54. Preheating device; 55. Preheating inlet; 56. Preheating outlet; 57. Third induced draft fan;

[0040] 600, cyclone dust collector; 601, first spray device; 610, spray dust removal tower; 611, second spray device; 612, tower inlet; 613, tower outlet;

[0041] 700, water pool; 701, purification device; 702, first water pump; 703, bottom dust outlet pipe; 704, second water pump;

[0042] 800, first induced draft fan; 801, second induced draft fan; 802, condenser; 8021, main pipe; 8022, branch pipe; 8023, condensation chamber; 8024, overflow hole; 803, activated carbon purifier; 8031, purification layer; 804, filter; 8041, filter chamber; 8042, filter element. DETAILED DESCRIPTION

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0045] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0046] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0047] like Figures 1 to 11 As shown, the present invention proposes a garbage disposal system 1000, comprising:

[0048] Garbage pre-processing subsystem, used for pre-processing garbage;

[0049] The first pyrolysis device 100 includes a first pyrolysis chamber 11, a first inlet 12, a first outlet 13, a return air inlet 14, and a first burner 15. The first inlet 12, the first outlet 13, and the return air inlet 14 are all in communication with the first pyrolysis chamber 11. The first inlet 12 is used to receive waste processed by the waste pretreatment subsystem. The first burner 15 is used to ignite the waste in the first pyrolysis chamber 11.

[0050] The gas diverter 300 has a diverter inlet 31, a first diverter outlet 32, and a second diverter outlet 33. The diverter inlet 31 is connected to the first diverter outlet 32 ​​and the second diverter outlet 33 respectively. The diverter inlet 31 is also connected to the first inlet 12 through a pipeline. The first diverter outlet 32 ​​is connected to the return air inlet 14 through a pipeline.

[0051] The cooling and purification subsystem is in communication with the second diversion outlet 33 , and is used to cool and purify the tail gas generated by the gas diverter 300 .

[0052] It can be understood that the garbage pre-processing subsystem is a subsystem that collects, shreds and preheats the garbage. The garbage pre-processing subsystem can be provided with a garbage bin 50, which is used to receive garbage. The garbage bin 50 is connected to the inlet of the conveyor, and the outlet of the conveyor is connected to the shredder. The shredder can further shred the garbage into smaller particles. The garbage shredded by the shredder can be transported to the first pyrolysis device 100 through another conveyor arranged behind the shredder.

[0053] The first pyrolysis device 100 is used to pyrolyze waste at high temperatures. Pyrolysis is the process of thermally decomposing waste in the absence or absence of oxygen. Pyrolysis of organic waste produces gaseous or liquid fuels that can be separated, recycled, and reused. Furthermore, due to the relatively low pyrolysis temperature, the pyrolysis process produces fewer nitrogen oxides and minimizes exhaust emissions, contributing to environmental benefits. The first pyrolysis device 100 includes a first pyrolysis chamber 11 for receiving and pyrolyzing waste. The first pyrolysis chamber 11 is defined by a first pyrolysis housing of the first pyrolysis device 100. The first pyrolysis housing is provided with a first inlet 12 and a first outlet 13, which communicate with the first pyrolysis chamber 11. The first inlet 12 is connected to the outlet of a conveyor to receive shredded waste. A first burner 15 is located within the first pyrolysis chamber 11. The first burner 15 can be a fuel burner, which ignites fuel to ignite the waste within the first pyrolysis chamber 11 for pyrolysis. Alternatively, the first burner 15 can be a plasma burner, which generates plasma and generates high temperatures to ignite the waste within the first pyrolysis chamber 11.

[0054] The gas diverter 300 can be a cyclone separator or other gas diverter. The function of the gas diverter 300 is to return part of the tail gas from the first pyrolysis device 100 to the first pyrolysis chamber 11, thereby creating an oxygen-free negative pressure environment in the first pyrolysis chamber 11, allowing the garbage to be completely and fully burned under high temperature, oxygen-free, negative pressure conditions, thereby reducing tail gas emissions. The gas diverter 300 has a diversion inlet, a first diversion outlet 32, and a second diversion outlet 33. The diversion inlet can be connected to the first outlet 13 through a pipeline to receive the tail gas generated by the first pyrolysis device 100. The first diversion outlet 32 ​​can be connected to the reflux inlet 14 on the first pyrolysis device 100 through a pipeline to return part of the tail gas to the first pyrolysis chamber 11, continue heating the garbage, fully burn the garbage, improve pyrolysis efficiency, and reduce emissions.

[0055] The cooling and purification subsystem is used to cool and purify the exhaust gas generated by the waste pyrolysis subsystem. Specifically, the cooling and purification subsystem may include a cyclone dust collector 600 and a spray dust removal tower 610 to further purify and cool the exhaust gas generated by the waste pyrolysis subsystem. The cyclone dust collector 600 can sediment particulate matter in the exhaust gas, facilitating its collection and reducing emissions. The spray dust removal tower 610 can further collect particulate matter in the exhaust gas, reducing emission pollution. The cyclone dust collector 600 and spray dust removal tower 610 can refer to the existing cyclone dust collector 600 and spray dust removal tower 610 structures.

[0056] The gas driving force of the waste treatment system 1000 can be achieved by a first induced draft fan 800 located downstream of the cooling and purification subsystem. The first induced draft fan 800 extracts gas from the first pyrolysis device 100, providing the power for gas extraction. It drives the exhaust gas generated by the pyrolysis of the first pyrolysis device 100 to flow to the cooling and purification subsystem for cooling and purification. It also generates negative pressure in the first pyrolysis device 100, creating an oxygen-free or low-oxygen environment in the first pyrolysis chamber 11, reducing nitrogen oxides produced by waste pyrolysis and thereby reducing emission pollution. The structure of the first induced draft fan 800 can refer to existing induced draft fan structures.

[0057] The garbage disposal system 1000 proposed in the present invention performs anaerobic negative pressure pyrolysis on the garbage. After ignition, the exhaust gas generated by the pyrolysis of the garbage is reintroduced into the first pyrolysis device 100 through a circulation pipeline, thereby creating an anaerobic negative pressure environment, allowing the domestic garbage to be completely and fully burned under high temperature and anaerobic negative pressure conditions, thereby reducing exhaust gas emissions.

[0058] like Figure 1 and 2As shown, in some embodiments of the present invention, the garbage disposal system 1000 also includes a second pyrolysis device 200, which is located between the first pyrolysis device 100 and the gas diverter 300. The second pyrolysis device 200 includes a second pyrolysis chamber 21, a second inlet 22, a second outlet 23 and a second burner 24. The second inlet 22 and the second outlet 23 are both connected to the second pyrolysis chamber 21, the second inlet 22 is also connected to the first outlet 12 of the first pyrolysis chamber 11 through a pipeline, the second outlet 23 is connected to the diversion inlet 31 through a pipeline, and the second burner 24 is used to ignite garbage in the second pyrolysis chamber 21.

[0059] It can be understood that the function of the second pyrolysis device 200 is to continue to pyrolyze the tail gas generated after the pyrolysis of the first pyrolysis device 100 by high temperature. The second pyrolysis device 200 has a second pyrolysis chamber 21 for receiving the tail gas and continuing to pyrolyze the tail gas. The second pyrolysis chamber 21 can be defined by the second pyrolysis shell of the second pyrolysis device 200. The second pyrolysis shell is provided with a second inlet 22 and a second outlet 23 connected to the second pyrolysis chamber 21. The second inlet 22 is connected to the first outlet 13 through a pipeline to receive the tail gas generated after the pyrolysis of the first pyrolysis device 100. A second burner 24 is provided in the second pyrolysis chamber 21. The second burner 24 can be a fuel burner. By igniting the fuel, the tail gas and residual garbage in the tail gas in the second pyrolysis chamber 21 are ignited for secondary pyrolysis. The second burner 24 can also be a plasma burner. The high temperature generated when the plasma burner generates plasma ignites the garbage in the second pyrolysis chamber 21.

[0060] More specifically, a desulfurization and denitrification device can be installed on the pipeline connecting the second pyrolysis device 200 and the first pyrolysis device 100 to desulfurize the tail gas generated after pyrolysis in the first pyrolysis device 100 to reduce sulfur dioxide gas in the discharged tail gas. The desulfurization and denitrification device can refer to the existing desulfurization and denitrification device.

[0061] like Figure 1 、 Figure 2 and Figure 5 As shown, in some embodiments of the present invention, the first pyrolysis device 100 further includes an air supply component 16, which is disposed inside the first pyrolysis chamber 11. The air supply component 16 includes an air cavity 161, an air inlet 162, and an air outlet 163. The air inlet 162 and the air outlet 163 are both connected to the air cavity 161, and the air inlet 162 is connected to the return air inlet 14.

[0062] It is understood that an air supply assembly 16 can be provided in the first pyrolysis chamber 11 to transport the hot gas refluxed from the gas diverter 300 into the first pyrolysis chamber 11, thereby blowing away the garbage, improving the combustion effect, and efficiently utilizing the preheating cycle to improve the efficiency of pyrolysis. The air supply assembly 16 can include an air supply pipe, on which a plurality of air supply holes are provided. The air supply holes can be arranged at intervals along the axial direction of the air supply pipe, and the air supply holes can also be arranged in multiple rows along the circumference of the air supply pipe. The two adjacent rows of air supply holes are staggered, so that the air supply assembly 16 can generate a cyclone in the first pyrolysis chamber 11, disturbing and turning the garbage in the first pyrolysis chamber 11 to further disperse it, improve the combustion efficiency, make the garbage burn more fully, and thus reduce pollution emissions. Specifically, the air supply pipe can extend along the central axis of the first pyrolysis chamber 11 and be fixed to the wall surface of the first pyrolysis chamber 11 by brackets on both sides of the radial direction. The return air inlet 14 can be connected to the air inlet 162 through an air supply connecting pipe. The air supply connecting pipe can be set in the middle position of the first pyrolysis chamber 11 along the height direction of the first pyrolysis chamber 11 and extend along the radial direction of the first pyrolysis chamber 11. The air supply connecting pipe can play a supporting role for the air supply pipe.

[0063] like Figure 11 As shown, in some embodiments of the present invention, the garbage disposal system 1000 further includes a blowing subsystem, which includes a heat exchanger 40 and a blower 41. Part of the heat exchanger 40 is arranged inside the second pyrolysis chamber 21, and the inlet of the heat exchanger 40 is connected to the outlet of the blower 41. The first pyrolysis device 100 further includes a blowing port 42, which is arranged on the radial side wall of the first pyrolysis chamber 11, and the blowing port 42 is connected to the first pyrolysis chamber 11, and the outlet of the heat exchanger 40 is connected to the blowing port 42.

[0064] It is understood that a heat exchanger 40 can be provided in the second pyrolysis device 200. Specifically, the heat exchanger 40 can be a coil-type heat exchanger 40. The coil structure of the heat exchanger 40 can be spirally arranged along the axial direction of the second pyrolysis chamber 21 to provide a larger heat exchange surface area, exchange heat with the high-temperature gas in the second pyrolysis chamber 21, and improve the heat exchange efficiency. The inlet of the heat exchanger 40 extends out of the second pyrolysis device 200 and is connected to the blower 41. The blower 41 can be an existing blower 41. The blower 41 can send gas into the heat exchanger 40, and then the high temperature generated by the pyrolysis of the garbage in the second pyrolysis chamber 21 will heat the heat exchanger 40. The gas is heated, and the outlet of the heat exchanger 40 is connected to the blowing port 42 of the first pyrolysis device 100. Specifically, the heat exchanger 40 can be connected to the first pyrolysis chamber 11 through the blowing port 42 on the first pyrolysis shell. The blowing port 42 can be set below the first inlet 12, and the first inlet 12 can be set tilted downward. After the hot air is blown out from the blowing port 42, it can blow the garbage flowing out of the first inlet 12 toward the center of the first pyrolysis chamber 11 and disperse the garbage to a certain extent, making the garbage more reasonably distributed in the first pyrolysis chamber 11, reducing the probability of garbage piling up in a fixed position in the first pyrolysis chamber 11, and improving the efficiency of pyrolysis. The blowing port 42 can also be set at the bottom end of the first pyrolysis chamber 11, that is, the bottom end of the side wall of the first pyrolysis chamber 11. The hot air can be used to turn the garbage at the bottom end of the first pyrolysis chamber 11 to improve the pyrolysis efficiency. A rotating grate is provided at the bottom of the first pyrolysis chamber 11. After the garbage is dispersed, it can be discharged out of the chamber through the rotating grate. In addition, the heat exchange component can also be connected to the air supply connecting pipe, and can also be connected to the air supply pipe. By setting up a blowing subsystem, the high-temperature heated air in the second pyrolysis chamber 21 is transported to the air supply component 16. The air supply component 16 can transport the high-temperature gas to the first pyrolysis chamber 11, further improving the degree of pyrolysis of garbage in the first pyrolysis chamber 11, improving the efficiency of pyrolysis, and reducing pollution emissions.

[0065] like Figure 7 As shown, in some embodiments of the present invention, the garbage pre-processing subsystem includes a garbage shredding device 52, a conveying device and a preheating device 54. The conveying device is used to convey the garbage processed by the garbage shredding device 52 to the first inlet 12. The preheating device 54 is installed on the conveying device. The preheating device 54 is provided with a preheating chamber, a preheating inlet 55 and a preheating outlet 56. The preheating inlet 55 and the preheating outlet 56 are both connected to the preheating chamber, the preheating inlet 55 is connected to the first diversion outlet 32, and the preheating outlet 56 is connected to the return air inlet 14.

[0066] It is understood that the garbage shredder 52 can refer to existing garbage shredders and is used to further shred the garbage to facilitate combustion and improve the efficiency of garbage pyrolysis. The conveying device includes a first conveying device 51 and a second conveying device 53. The conveying device can be a belt conveyor or a screw conveyor. The first conveying device 51 can be a belt conveyor to convey the garbage in the garbage bin 50 to the garbage shredder 52, and the second conveying device 53 can be a screw conveyor to convey the shredded garbage to the first pyrolysis device 100. In order to facilitate the heating of garbage, the preheating device 54 can be installed close to the conveying device, and the preheating chamber can be extended along the conveying direction of the conveying device. The preheating chamber can be defined by the outer shell of the preheating device 54, and the preheating chamber has a preheating inlet and a preheating outlet 56. The preheating inlet is connected to the first diversion outlet 32 ​​of the gas diverter 300 through a pipeline to return the high-temperature exhaust gas after pyrolysis in the second pyrolysis device 200 to the preheating chamber to preheat the garbage so that the garbage reaches a certain temperature in advance, thereby shortening the time for the garbage to reach the combustion temperature in the first pyrolysis device 100 to improve the pyrolysis efficiency. The preheating outlet 56 is connected to the reflux air inlet 14 on the first pyrolysis device 100, so that the hot gas enters the first pyrolysis chamber 11 after preheating the garbage to continue to pyrolyze the garbage, thereby increasing the pyrolysis temperature and thus improving the pyrolysis efficiency. Specifically, the garbage pre-processing subsystem may include a garbage dumping device, a garbage bin 50, a belt conveyor, a hopper, a garbage shredder 52, and a screw conveyor, which are connected in sequence. The belt conveyor transfers garbage from the garbage bin 50 to the hopper. The hopper is located above the garbage shredder 52, and the garbage in the hopper can fall into the garbage shredder 52 for shredding. The screw conveyor can transfer the shredded garbage to the first inlet 12, thereby allowing the garbage to enter the first pyrolysis chamber 11 for pyrolysis. The preheating device 54 may include a cylindrical preheating chamber, which is mounted on the screw conveyor so that the garbage can be heated by the preheating chamber as it moves along the screw conveyor, thereby increasing the temperature of the garbage before pyrolysis and improving the pyrolysis efficiency. More specifically, the first inlet 12 can be located on the side wall of the first pyrolysis chamber 11, and the first inlet 12 can be located near the top of the first pyrolysis chamber 11. The outlet of the screw conveyor is connected to the first inlet 12 at an angle, so that the garbage can fall into the first pyrolysis chamber 11 at an angle. The above-mentioned garbage conveying structure makes the garbage conveying process smoother. Specifically, a third induced draft fan 57 can be installed in the pipeline connecting the preheating chamber and the gas diverter 300 to drive the high-temperature gas from the gas diverter 300 into the preheating chamber, increasing the gas flow rate, reducing the gas's residence time in the pipeline, and thereby raising the temperature of the preheating chamber. To improve the purity of the returning high-temperature gas, a hot air filter 301 can be installed between the third induced draft fan 57 and the gas diverter 300 to filter the high-temperature gas exiting the gas diverter 300 and reduce the failure rate of the third induced draft fan 57.

[0067] like Figure 3As shown, in some embodiments of the present invention, the cooling and purification subsystem includes at least one cyclone dust collector 600 connected in sequence. Along the flow direction of the exhaust gas, the inlet of the cyclone dust collector 600 located at the upstream is connected to the second diversion outlet 33. The cyclone dust collector 600 includes a dust collector body and a first spray device 601. The first spray device 601 is arranged inside the dust collector body. The first spray device 601 is used to spray into the interior of the dust collector body.

[0068] It is understood that the cyclone dust collector 600 can refer to the structure of an existing cyclone dust collector 600, that is, the cyclone dust collector 600 includes a cyclone separation section and a funnel section, the funnel section is arranged below the cyclone separation section, the cyclone separation section has a cylindrical structure, and the funnel section has an inverted truncated cone structure. The inlet of the cyclone separator is arranged on the side wall of the cyclone separation section, and the air intake direction of the inlet is tangential to the circumference of the cyclone separation section, so that the exhaust gas generated by the second pyrolysis device 200 enters the cyclone separator from the inlet and then generates a cyclone in the cyclone separation section. Due to the different weights of various pollutant particles in the exhaust gas, under the action of the centrifugal force generated by the cyclone, the particles are thrown outward to the wall surface of the cyclone separation section, and then move downward to fall into the funnel section for collection. The dust removal effect can be further improved by providing multiple cyclone dust collectors 600 in series. A first spray device 601 may also be provided within the cyclone separator. The first spray device 601 may be a first spray pipe structure that introduces external spray water and discharges it from the first spray pipe. The first spray pipe is provided with multiple spray holes, allowing the spray water to mix with the exhaust gas within the cyclone separator. The spray water then carries particulate matter in the exhaust gas downward to be collected in the funnel. The first spray device 601 may include an upper spray pipe and a lower spray pipe disposed within the cyclone separator. The two spray pipes are arranged in opposite directions, allowing the exhaust gas to be sprayed from both sides, further improving the spraying effect and allowing more polluted particulate matter to be carried away by the spray water.

[0069] like Figure 3 As shown, in some embodiments of the present invention, the cooling and purification subsystem also includes a spray dust removal tower 610, which includes a tower body and a second spray device 611. The tower body is provided with a tower inlet 612 and a tower outlet 613. Along the flow direction of the exhaust gas, the outlet of the cyclone dust collector 600 located at the most downstream is connected to the tower inlet 612, and the second spray device 611 is arranged inside the tower body. The second spray device 611 is used to spray the inside of the tower body.

[0070] It is understood that the tower body can be a tower-shaped structure, arranged vertically, with the tower inlet 612 located at the bottom of the tower body and the tower outlet 613 located at the top of the tower body, so that the exhaust gas can flow from bottom to top. The tower body can also be provided with multiple filling layers spaced apart along the height of the tower body. The filling layers can refer to the filling layer structure of existing spray towers. The provision of the filling layers enables the spray water from the second spray device 611 to form a water film on the filling layers, thereby increasing the contact area between the spray water and the exhaust gas, thereby improving the spray dust removal effect. The second spray device 611 can be a plurality of second spray pipes spaced apart along the height of the tower body. The second spray pipes can be arranged between two adjacent filling layers and extend radially along the tower body. The second spray pipes are provided with multiple spray holes facing the bottom of the tower body. The exhaust gas is sprayed with dust removal by introducing external spray water and spraying it from the spray holes. The second spray pipe can also be arranged in a ring shape to increase the spray area.

[0071] like Figure 1-8 As shown, in some embodiments of the present invention, the garbage disposal system 1000 also includes a dust removal subsystem, which includes a water pool 700, a purification device 701 and a conveying device. At least one of the second pyrolysis device 200, the gas diverter 300, the cyclone dust collector 600 and the spray dust removal tower 610 is provided with a bottom dust outlet pipe 703, and the bottom dust outlet pipe 703 extends into the water pool 700. The water pool 700 is used to hold a water seal liquid that covers the bottom end of the bottom dust outlet pipe 703. The purification device 701 is used to purify the water seal liquid. The conveying device is used to transport the water seal liquid to the first spray device 601 and / or the second spray device 611.

[0072] It is understandable that in order to reduce the dust or pyrolysis waste generated by each subsystem in the garbage disposal system 1000, a bottom dust outlet pipe 703 can be set at the bottom of the second pyrolysis device 200, the gas diverter 300, the cyclone dust collector 600 and the spray dust removal tower 610. The bottom dust outlet pipe 703 extends in a vertical direction, the top end is connected to the interior of the second pyrolysis device 200, the gas diverter 300, the cyclone dust collector 600 and the spray dust removal tower 610, and the bottom end is inserted into the water pool 700, and the water pool 700 is filled with water that can cover the bottom dust outlet pipe 703. The sealing liquid is provided by providing a water seal, which allows the discharge from the second pyrolysis device 200, the gas diverter 300, the cyclone dust collector 600, and the spray dust removal tower 610 to be incorporated into the sealing liquid, thereby reducing the emission of pollutants. Furthermore, the water tank 700 is equipped with a purification device 701, which can adopt an existing three-stage sewage purifier. The three-stage sewage purifier can circulate and purify the sealing liquid in the water tank 700 to maintain its purity. A first water pump 702 connected to the water tank can be used to pump the sealing liquid from the water tank into the purification device 701 for purification. For efficient utilization, the sealing liquid can also be pumped to the first spray device 601 or the second spray device 611 via a conveying device, such as a second water pump 704 connected to the water tank 700, to achieve efficient utilization of the sealing liquid for dust collection and spray dust removal. More specifically, a urea release device may be provided to further purify the water seal liquid. Urea may be released into the water pool 700 through the urea release device, and the urea reacts with nitrogen oxides in the dust in the water pool 700 to generate waste with less environmental pollution, thereby further reducing pollution emissions.

[0073] like Figure 3 and 4 As shown, in some embodiments of the present invention, the garbage treatment system 1000 also includes a first induced draft fan 800 and a second induced draft fan 801. The first induced draft fan 800 is used to drive the flue gas generated by the first pyrolysis device 100 to flow toward the cooling and purification subsystem. The inlet of the first induced draft fan 800 is connected to the tower body outlet 613. The garbage treatment system 1000 also includes a harmless emission subsystem, which includes a condenser 802 and an activated carbon purifier 803. The inlet of the activated carbon purifier 803 is connected to the tower body outlet 613, and the outlet of the activated carbon purifier 803 is connected to the inlet of the first induced draft fan 800. The inlet of the condenser 802 is connected to the outlet of the first induced draft fan 800, and the outlet of the condenser 802 is connected to the inlet of the second induced draft fan 801.

[0074] It can be understood that in order to generate gas flow in the garbage treatment system 1000 and improve the flow efficiency, a first induced draft fan 800 and a second induced draft fan 801 can be respectively set downstream of the cooling and purification subsystem and downstream of the harmless emission subsystem. The first induced draft fan 800 and the second induced draft fan 801 can refer to the existing induced draft fan structure. By setting the first induced draft fan 800 and the second induced draft fan 801, the airflow in the garbage treatment system 1000 is driven, so that the exhaust gas generated by the first pyrolysis device 100 flows to the cooling and purification subsystem, and the exhaust gas of the cooling and purification subsystem flows to the harmless emission subsystem, thereby increasing the flow speed and thus improving the efficiency of garbage treatment. The activated carbon purifier 803 includes a purification chamber and multiple purification layers 8031. The purification chamber has an inlet connected to the outlet of the tower body, and the purification chamber also has an outlet connected to the inlet of the first induced draft fan 800. The multiple purification layers 8031 ​​are arranged at intervals along the height direction of the purification chamber. The purification layer 8031 ​​can adopt an activated carbon purification layer 8031. An S-shaped purification channel is defined in the purification chamber by a guide structure. The inlet of the purification chamber is connected to one end of the purification channel, and the outlet of the purification chamber is connected to the other end of the purification channel. The purification layer 8031 ​​is arranged in the purification channel, so that the exhaust gas flowing out of the spray dust removal tower 610 can enter the purification chamber from top to bottom, and then be purified from bottom to top through multiple purification layers 8031, and then flow out of the purification chamber from top to bottom to be driven by the first induced draft fan 800.

[0075] The condenser 802 may include a condensation chamber 8023, a main pipe 8021, and a plurality of branch pipes 8022. The condensation chamber 8023 is defined by the shell of the condenser 802. Condensate is contained in the condensation chamber 8023. The main pipe 8021 is disposed above the condensation chamber 8023. The inlet of the main pipe 8021 is connected to the outlet of the cooling and purification subsystem. One end of the branch pipe 8022 is connected to the main pipe 8021, and the other end of the branch pipe 8022 extends into the condensate. The condensation chamber 8023 also has an outlet, which is connected to the second induced draft fan 801. Under the action of the second induced draft fan 801, the exhaust gas from the cooling and purification subsystem enters the plurality of branch pipes 8022 from the main pipe 8021, undergoes preliminary condensation, then enters the condensate for filtration, adsorption, and condensation before being discharged from the condenser 802. This further reduces particulate matter and pollutants in the exhaust gas, thereby reducing waste discharge pollution. Specifically, main pipe 8021 can be arranged at the top of condensation chamber 8023 along the width of condenser 802, and branch pipe 8022 can extend along the height of condenser 802, so that liquid generated during condensation can flow into condensation chamber 8023 along branch pipe 8022, thereby improving condensation efficiency. The condensate can be a liquid capable of treating exhaust pollutants, such as urea solution. More specifically, the main pipe 8021 includes a first pipe section and a second pipe section extending along the width direction of the condensing chamber 8023, and multiple branch pipes 8022 are arranged at axial intervals along the first pipe section, and one end of the first pipe section is connected to the outlet of the cooling and purification subsystem, and the other end is connected to the second pipe section. The second pipe section is closed at one end away from the first pipe section, so that the airflow from the first induced draft fan 800 first enters along the main pipe 8021, then collides with the closed end of the second pipe section, and then flows in the opposite direction, and then mixes with the subsequent airflow entering the main pipe 8021 and flows toward the branch pipe 8022. The part of the branch pipe 8022 located in the condensing chamber 8023 cools the above-mentioned airflow, and finally the airflow enters the condensate for further cooling and purification. In addition, at least one overflow hole 8024 is provided on the side wall of the condensation chamber 8023. The overflow hole 8024 is connected to the inlet of the purification device 701 through a pipeline. An overflow valve can be provided in the pipeline connected to the overflow hole 8024. By providing the overflow hole 8024, the liquid level of the condensate is controlled so that the condensate is maintained at a certain liquid level, thereby improving the cooling effect of the branch pipe 8022.

[0076] like Figure 5As shown, in some embodiments of the present invention, the garbage disposal system 1000 also includes a particle collection device, the first pyrolysis device 100 also includes a first ash discharge hole 171 and a rotating grate, the first ash discharge hole 171 is arranged at the bottom of the first pyrolysis chamber 11, the first ash discharge hole 171 is connected to the particle collection device, the rotating grate includes a rotating disk 173 and a driving device 174, the rotating disk 173 is provided with a second ash discharge hole 172, the rotating disk 173 is rotatably arranged at the bottom of the first pyrolysis chamber 11, and the driving device 174 is used to drive the rotating disk 173 to rotate so that the second ash discharge hole 172 is intermittently connected to the first ash discharge hole 171.

[0077] It can be understood that a plurality of first ash discharge holes 171 arranged at intervals can be opened at the bottom of the first pyrolysis chamber 11 along the circumference of the first pyrolysis chamber 11, and the first ash discharge holes 171 are connected to the outside of the first pyrolysis device 100. A rotating disk 173 can be provided at the bottom of the first pyrolysis chamber 11, and the rotating disk 173 can be rotated by a driving device 174. A rotating shaft 175 is provided in the middle of the rotating disk 173, and the rotating shaft 175 is coaxially arranged with the first pyrolysis chamber 11 and fixed on the cavity wall of the first pyrolysis chamber 11. The rotating disk 173 can be rotatably connected to the rotating shaft 175 through a bearing. The inner ring of the bearing is sleeved on the rotating shaft 175, and the outer ring of the bearing is inserted into the through hole on the rotating disk 173. In order to strengthen the connection between the rotating disk 173 and the rotating shaft 175, A reinforcement is also provided on the top of the rotating disk 173, which is sleeved on the bearing and fixed to the rotating disk 173 by bolts. A plurality of second ash discharge holes 172 corresponding to the positions of the first ash discharge holes 171 are provided on the rotating disk 173. When the driving device 174 drives the first bevel gear 177a to rotate through the transmission shaft 176, the first bevel gear 177a drives the annular bevel tooth surface on the rotating disk 173 engaged with it to rotate, thereby driving the rotating disk 173 to rotate. At this time, the second ash discharge holes 172 can be intermittently connected to the first ash discharge holes 171, so that the garbage dust falling on the rotating disk 173 is flipped by the rotating disk 173 and discharged from the second ash discharge holes 172 to the first ash discharge holes 171 to the first pyrolysis chamber 11. To facilitate dust collection, a particle collection device is also provided, such as a dust box or other container that can accommodate particulate matter. A channel connected to the particle collection device can be provided on the outside of the first ash discharge hole 171, so that dust can be discharged into the particle collection device. Furthermore, a bagging machine can be provided to bag and pack the garbage in the particle collection device in time.

[0078] like Figure 5As shown, in some embodiments of the present invention, the driving device 174 is in the form of a motor driving the first bevel gear 177a. The motor is connected to the first bevel gear 177a through a drive shaft to drive the first bevel gear 177a to rotate. The first bevel gear 177a is disposed in the first pyrolysis chamber 11. The first bevel gear 177a is engaged with the annular tooth structure disposed on the outer edge of the rotating disk 173, so that the rotation of the first bevel gear 177a can drive the rotating disk 173 to rotate. In order to reduce the impact of dust on the transmission structure of the driving device 174, an ash shield is further provided in the first pyrolysis chamber 11. The ash shield is disposed above the first bevel gear 177a and the drive shaft to prevent dust from falling into the meshing surface of the first bevel gear 177a and the connection between the drive shaft and the bearing, thereby affecting the rotational movement of the driving device 174.

[0079] like Figure 6 As shown, in some embodiments of the present invention, the second bevel gear 177b can also be arranged below the rotating disk 173, the support disk 178 is supported and mounted at the bottom end of the first pyrolysis chamber 11, the support disk 178 is provided with a first ash discharge hole 171, the rotating disk 173 is arranged above the support disk 178, the diameter of the rotating disk 173 is larger than the support disk 178, and a rotating shaft 175 is provided at the center of the support disk 178, the bottom end of the rotating shaft 175 is connected to the support disk 178, and the top end of the rotating shaft 175 is connected to the rotating disk 173, the rotating disk 173 is rotatably connected to the support disk 178 through the rotating shaft 175, and a bearing can be provided at the connection to reduce friction resistance. An annular gear structure is provided on the lower side of the rotating disk 173, that is, an annular gear structure is provided on the portion of the rotating disk 173 that radially extends beyond the support disk 178. A second bevel gear 177b and a transmission shaft 176 are provided below the rotating disk 173, and the second bevel gear 177b is meshed with the annular gear structure. The transmission shaft 176 passes through the cavity wall of the first pyrolysis chamber 11, and one end of the transmission shaft 176 is connected to the second bevel gear 177b, and the other end is connected to the motor. The motor can drive the second bevel gear 177b to rotate, thereby driving the rotating disk 173 to rotate, thereby turning over the garbage in the first pyrolysis chamber 11 and improving the pyrolysis efficiency. The second ash discharge hole 172 on the rotating disk 173 can be intermittently connected to the first ash discharge hole 171 on the support disk 178, so that ash can be discharged from the first pyrolysis chamber 11, facilitating the collection of pyrolysis dust. In addition, the support disk 178 and the rotating disk 173 are coaxially arranged with the first pyrolysis chamber 11, and there is a gap between the support disk 178 and the cavity wall of the first pyrolysis chamber 11. A baffle 179 is provided above the support disk 178. The baffle 179 can block the gap between the support disk 178 and the cavity wall of the first pyrolysis chamber 11. The baffle 179 is arranged at an angle so that dust on the baffle 179 can fall onto the support disk 178.

[0080] like Figure 5As shown, in some embodiments of the present invention, an air blowing pipe connected to the air blowing port 42 is further provided at the bottom of the first pyrolysis chamber 11. By blowing air to the bottom of the first pyrolysis chamber 11, the dust at the bottom of the first pyrolysis chamber 11 can be blown up and turned by the air flow, and then the dust can be driven by the rotating disk 173 to fall into the second ash discharge hole 172 and discharged outside the first pyrolysis chamber 11.

[0081] like Figure 11 As shown, in some embodiments of the present invention, the garbage disposal system 1000 further includes a hot air filter 301, which is installed on the gas diverter 300. The function of the hot air filter 301 is to filter the exhaust gas of the second pyrolysis device 200 before diversion. The hot air filter 301 can refer to the existing gas filter 301 structure, that is, the hot air filter 301 has an inlet and an outlet, and the inlet of the hot air filter 301 is connected to the first diversion outlet 32 ​​of the gas diverter 300, and the outlet of the hot air filter 301 is connected to the preheating chamber through a pipeline, so that the exhaust gas of the second pyrolysis device 200 is filtered before diversion, and then flows back to the first pyrolysis chamber 11 to continue heating the garbage, and also flows back to the preheating chamber to preheat the garbage, thereby reducing the phenomenon of excessive impurities in the reflux hot gas clogging the pipeline. More specifically, a bottom dust outlet pipe 703 is further provided at the bottom of the hot air filter 301. The bottom dust outlet pipe 703 extends into the water sealing liquid so that the filtered dust can be collected and adsorbed by the water sealing liquid, thereby reducing pollution emissions.

[0082] like Figure 4 As shown, in some embodiments of the present invention, the garbage disposal system 1000 further includes an activated carbon purifier 803, which can be installed between the spray dust removal tower 610 and the second induced draft fan 801. The activated carbon purifier 803 absorbs the exhaust gas treated by the spray dust removal tower 610, further eliminating pollutants in the exhaust gas and reducing emission pollution. More specifically, the activated carbon purifier 803 can also be connected to the water tank 700 of the dust removal subsystem. A water pump can be used to pump water seal liquid into the activated carbon purifier 803, forming a water circulation system, which can further improve the purity of the water seal liquid.

[0083] like Figure 4 As shown, in some embodiments of the present invention, the harmless emission subsystem further includes a filter 804 disposed between the condenser 802 and the second induced draft fan 801. The filter 804 includes a filter cavity 8041 and a filter element 8042. The filter cavity 8041 may be defined by a housing. The filter element 8042 is disposed within the filter cavity 8041. The filter element 8042 includes a cylindrical body and a filter layer sleeved on the cylindrical body. One end of the cylindrical body is connected to the outlet of the condenser 802. The radial sidewall of the cylindrical body is provided with multiple through holes. The filter layer sleeves on the radial outer surface of the cylindrical body. The filter cavity 8041 is connected to the second induced draft fan 801. The filter layer further filters the exhaust gas from the condenser 802, reducing pollutant emissions.

[0084] In some embodiments of the present invention, the garbage disposal system 1000 further includes a generator, which may be a single-cylinder diesel generator, and the generator is used to power the first induced draft fan 800, the second induced draft fan 801, each water pump, the conveyor and the control system.

[0085] In some embodiments of the present invention, the garbage disposal system 1000 is further provided with a control device, which is communicatively connected to each burner, water pump, and other dynamic equipment. The garbage disposal system 1000 is further provided with a plurality of sensors for monitoring signals such as the gas flow rate in each container and pipeline, the water seal liquid level, the temperature in the pyrolysis chamber, the weight of the garbage, the concentration of pollutants in the exhaust gas, and the operating parameters of each device. Each sensor is communicatively connected to the control device, allowing the user to monitor the operation of the system in a timely manner. Specifically, a sensor is further provided at the second pyrolysis device 200 to monitor the pyrolysis status of the garbage in the second pyrolysis chamber 21. By monitoring the pyrolysis status of the garbage in the second pyrolysis chamber 21, the first pyrolysis device 100 can be adjusted in real time. For example, if the pyrolysis of the second pyrolysis device 200 is insufficient, the pyrolysis temperature of the first pyrolysis device 100 can be increased, or the temperature of the preheating chamber can be increased. This can be achieved by controlling the flow rate of the hot gas returning to the first pyrolysis device 100 and the flow rate of the hot gas returning to the preheating chamber. It can also be achieved by controlling the combustion effect of the first burner 15.

[0086] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A garbage disposal system, characterized in that: include: Garbage pre-processing subsystem, used for pre-processing garbage; a first pyrolysis device, comprising a first pyrolysis chamber, a first inlet, a first outlet, a return air inlet, and a first burner, wherein the first inlet, the first outlet, and the return air inlet are all in communication with the first pyrolysis chamber, the first inlet is configured to receive waste pretreated by the waste pretreatment subsystem, and the first burner is configured to ignite waste in the first pyrolysis chamber; a gas diverter having a diversion inlet, a first diversion outlet, and a second diversion outlet, wherein the diversion inlet is communicated with the first diversion outlet and the second diversion outlet respectively, the diversion inlet is also communicated with the first outlet, and the first diversion outlet is communicated with the reflux inlet; a cooling and purification subsystem, connected to the second diversion outlet, and configured to cool and purify the tail gas generated by the gas diverter; The garbage disposal system further includes a second pyrolysis device, which is located between the first pyrolysis device and the gas diverter. The second pyrolysis device includes a second pyrolysis chamber, a second inlet, a second outlet, and a second burner. The second inlet and the second outlet are both connected to the second pyrolysis chamber, the second inlet is also connected to the first outlet of the first pyrolysis chamber, the second outlet is connected to the diversion inlet, and the second burner is used to ignite garbage in the second pyrolysis chamber. The garbage disposal system further includes a first induced draft fan and a second induced draft fan, and the garbage disposal system further includes a harmless emission subsystem, the harmless emission subsystem including a condenser and an activated carbon purifier, the inlet of the activated carbon purifier is connected to the cooling and purification subsystem, the outlet of the activated carbon purifier is connected to the inlet of the first induced draft fan, the inlet of the condenser is connected to the outlet of the first induced draft fan, and the outlet of the condenser is connected to the inlet of the second induced draft fan; The condenser includes a condensation chamber, a main pipe, and a plurality of branch pipes. The condensation chamber contains condensate. The main pipe is arranged above the condensation chamber. One end of the branch pipe is connected to the main pipe, and the other end of the branch pipe extends into the condensate. The main pipe includes a first pipe segment and a second pipe segment extending along the width of the condensation chamber. A plurality of branch pipes are arranged at intervals along the axial direction of the first pipe segment. One end of the first pipe segment is connected to the outlet of the cooling and purification subsystem, and the other end is connected to the second pipe segment. The second pipe segment is closed at one end away from the first pipe segment. The width direction of the condensation chamber is perpendicular to the vertical direction, the axial direction of the branch pipe is parallel to the vertical direction, and the second pipe section is used to receive the airflow from the first pipe section and return the airflow to the first pipe section.

2. The garbage disposal system according to claim 1, characterized in that: The first pyrolysis device also includes an air supply component, which is arranged inside the first pyrolysis chamber. The air supply component includes an air cavity, an air inlet and an air outlet. The air inlet and the air outlet are both connected to the air cavity, and the air inlet is connected to the return air inlet.

3. The garbage disposal system according to claim 2, characterized in that: The garbage disposal system also includes a blowing subsystem, which includes a heat exchanger and a blower. Part of the heat exchanger is arranged inside the second pyrolysis chamber, and the inlet of the heat exchanger is connected to the outlet of the blower. The first pyrolysis device also includes a blowing port, which is arranged on the radial side wall of the first pyrolysis chamber and is connected to the first pyrolysis chamber. The outlet of the heat exchanger is connected to the blowing port.

4. The garbage disposal system according to claim 1, characterized in that: The garbage pre-processing subsystem includes a garbage shredding device, a conveying device and a preheating device. The conveying device is used to transport the garbage processed by the garbage shredding device to the first inlet. The preheating device is installed on the conveying device. The preheating device is provided with a preheating chamber, a preheating inlet and a preheating outlet. The preheating inlet and the preheating outlet are both connected to the preheating chamber, the preheating inlet is connected to the first diversion outlet, and the preheating outlet is connected to the reflux air inlet.

5. The garbage disposal system according to claim 2, characterized in that: The cooling and purification subsystem includes at least one cyclone dust collector connected in sequence. Along the flow direction of the exhaust gas, the inlet of the cyclone dust collector located most upstream is connected to the second diversion outlet. The cyclone dust collector includes a dust collector body and a first spray device. The first spray device is arranged inside the dust collector body, and the first spray device is used to spray into the interior of the dust collector body.

6. The garbage disposal system according to claim 5, characterized in that: The cooling and purification subsystem also includes a spray dust removal tower, which includes a tower body and a second spray device. The tower body is provided with a tower inlet and a tower outlet. Along the flow direction of the exhaust gas, the outlet of the cyclone dust collector located at the most downstream is connected to the tower inlet. The second spray device is arranged inside the tower body, and the second spray device is used to spray into the interior of the tower body.

7. The garbage disposal system according to claim 6, characterized in that: The garbage disposal system also includes a dust removal subsystem, which includes a water pool, a purification device and a conveying device. At least one of the second pyrolysis device, the gas diverter, the cyclone dust collector and the spray dust removal tower is provided with a bottom dust outlet pipe, and the bottom dust outlet pipe extends into the water pool. The water pool is used to hold a water seal liquid that covers the bottom end of the bottom dust outlet pipe. The purification device is used to purify the water seal liquid. The conveying device is used to convey the water seal liquid to the first spray device and / or the second spray device.

8. The garbage disposal system according to any one of claims 1 to 7, characterized in that: The garbage disposal system also includes a particle collection device, and the first pyrolysis device also includes a first ash discharge hole and a rotating grate. The first ash discharge hole is arranged at the bottom of the first pyrolysis chamber, and the first ash discharge hole is connected to the particle collection device. The rotating grate includes a rotating disk and a driving device. The rotating disk is provided with a second ash discharge hole. The rotating disk is rotatably arranged at the bottom of the first pyrolysis chamber, and the driving device is used to drive the rotating disk to rotate so that the second ash discharge hole is intermittently connected to the first ash discharge hole.

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