A kind of organic waste thermochemical treatment device and method

Abstract

The present invention discloses an organic waste thermochemical treatment device and method, and belongs to the technical field of harmless treatment of organic waste. The organic waste thermochemical treatment device comprises: a feed box, a grabbing manipulator and a thermochemical treatment furnace; the fixed end of the grabbing manipulator is fixedly arranged on the thermochemical treatment furnace, and the action end of the grabbing manipulator can move the feed box to the top of the thermochemical treatment furnace; the bottom of the feed box can be connected to the top of the thermochemical treatment furnace. The organic waste thermochemical treatment device and method of the present invention have relatively loose requirements for pre-crushing of waste, and have relatively low requirements for crushing particle size distribution. Larger-sized waste can also be thermochemically treated through this feeding method, and there will be no blockage, bridging of materials and material jamming when using a spiral feeder to feed.

Description

Technical Field

[0001] The invention relates to the technical field of harmless treatment of organic waste, and in particular to a device and method for thermochemical treatment of organic waste. Background Art

[0002] Thermochemical treatment can reduce the volume of organic waste to less than 20% of its original volume, which can quickly reduce the amount of organic waste. The solid pollutants such as fly ash generated during the thermal treatment process are solidified and landfilled harmlessly, the slag can be made into building materials, and the waste gas must be purified and treated to meet the emission standards.

[0003] China's towns and villages are scattered, and if domestic organic waste is treated in a centralized manner, the transportation cost will be high. Therefore, the market prospects for building a small-scale thermochemical treatment system for domestic organic waste suitable for towns, remote scenic tourist areas and other areas in my country are very broad. In recent years, some domestic environmental protection companies have independently developed a variety of small-scale thermochemical treatment technologies and equipment for organic waste, and built corresponding demonstration projects. In the specific operation process, a screw conveyor or hydraulic push rod is usually set at the bottom of the garbage hopper to feed the thermochemical treatment furnace.

[0004] However, due to the rough surface and various shapes of organic waste, strong adhesion and poor fluidity, coupled with the low thermal decomposition temperature of organic waste, the precipitation of volatile matter and its chemical water makes the organic waste easy to agglomerate, resulting in bridging and coking problems in the feeding and conveying device under hot conditions. These problems ultimately lead to the inability of the waste thermal chemical treatment system to operate continuously and stably for a long time, and the high frequency of shutdowns for maintenance. Summary of the invention

[0005] The present invention provides an organic waste thermochemical treatment device and method, which solves or partially solves the technical problem in the prior art that organic waste is prone to agglomeration, resulting in bridging and coking of the organic waste in a feeding and conveying device under hot conditions, resulting in the inability of the waste thermochemical treatment system to operate continuously and stably for a long time and a high frequency of shutdowns for maintenance.

[0006] In order to solve the above technical problems, the present invention provides an organic waste thermochemical treatment device including: a feed box, a grabbing robot and a thermochemical treatment furnace; the fixed end of the grabbing robot is fixedly arranged on the thermochemical treatment furnace, and the action end of the grabbing robot can move the feed box to the top of the thermochemical treatment furnace; the bottom of the feed box can be connected to the top of the thermochemical treatment furnace.

[0007] Furthermore, a cover is detachably provided on the top of the feed box.

[0008] Furthermore, a first gate valve is slidably provided at the bottom of the feed box; and a second gate valve is slidably provided at the top of the thermochemical treatment furnace.

[0009] Furthermore, a first slide groove is provided at the bottom of the feed box, a first rolling bearing is provided in the first slide groove, and the first gate valve is provided in the first slide groove; a second slide groove is provided at the top of the thermochemical treatment furnace, a second rolling bearing is provided in the second slide groove, and the second gate valve is provided in the second slide groove.

[0010] Furthermore, the organic waste thermochemical treatment device further comprises: a driving mechanism; the fixed end of the driving mechanism is fixedly arranged on the top of the thermochemical treatment furnace, and the action end of the driving mechanism is connected to the first gate valve and the second gate valve.

[0011] Furthermore, the driving mechanism includes: a fixed bracket, a telescopic cylinder, a plug plate and a plug column; the fixed bracket is fixedly arranged on the top of the thermochemical treatment furnace; the fixed end of the telescopic cylinder is fixedly arranged on the fixed bracket, and the action end of the telescopic cylinder is connected to the second plug plate valve; the plug column is fixedly arranged on the first plug plate valve; the plug plate is fixedly arranged on the action end of the telescopic cylinder, and an insertion hole is opened on the plug plate; the plug column can be inserted into the insertion hole.

[0012] Furthermore, the height ratio of the thermochemical treatment furnace and the feed box is between 2:1-5:1; the volume ratio of the thermochemical treatment furnace and the feed box is between 6:1-2:1; and the ratio of the equivalent cross-sectional diameters of the thermochemical treatment furnace and the feed box is between 1.5:1-1:1.

[0013] Furthermore, an ear hook is fixedly provided on the outer wall of the feed box.

[0014] Based on the same inventive concept, the present application also provides a method for thermochemical treatment of organic waste, comprising: feeding the waste that has undergone primary crushing and drying treatment into a feed box via a scraper conveyor; a grabbing robot lifts the feed box filled with waste to the top of a thermochemical treatment furnace, so that the feed box and the thermochemical treatment furnace are combined into a whole; when the temperature in the thermochemical treatment furnace is higher than 600°C, the bottom of the feed box is connected to the top of the thermochemical treatment furnace, and the waste in the feed box is fed to the thermochemical treatment furnace from top to bottom at one time under the action of gravity; when the feeding is completed, the connection between the bottom of the feed box and the top of the thermochemical treatment furnace is closed; the above process is repeated to gradually fill the thermochemical treatment furnace with waste.

[0015] Furthermore, the temperature of the garbage drying section of the thermochemical treatment furnace is maintained between 250°C and 350°C; the temperature of the thermochemical treatment section of the thermochemical treatment furnace is maintained between 700°C and 1000°C; the thermochemical treatment furnace maintains a negative pressure of the free space in the furnace at -50--20Pa.

[0016] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0017] Since the fixed end of the grabbing manipulator is fixedly set on the thermochemical treatment furnace, the moving end of the grabbing manipulator can move the feed box to the top of the thermochemical treatment furnace, and the bottom of the feed box can be connected with the top of the thermochemical treatment furnace. Therefore, the garbage that has undergone primary crushing and drying treatment is sent into the feed box via the scraper conveyor, and the grabbing manipulator lifts the feed box filled with garbage to the top of the thermochemical treatment furnace, so that the feed box and the thermochemical treatment furnace are combined into a whole. When the temperature in the thermochemical treatment furnace is higher than 600°C, the bottom of the feed box is connected with the top of the thermochemical treatment furnace, and the garbage in the feed box is fed to the thermochemical treatment furnace from top to bottom at one time under the action of gravity. When the feeding is completed, the connection between the bottom of the feed box and the top of the thermochemical treatment furnace is closed, and the above process is repeated, gradually. Filling the thermochemical treatment furnace with garbage has looser requirements for pre-crushing of garbage and lower requirements for crushing particle size distribution. Larger-sized garbage can also be thermochemically treated through this feeding method, and there will be no blockage, bridging of materials and material jamming when feeding with a spiral feeder. This eliminates the operator's concerns about blockage of the feeding system during operation, solves the problem of furnace shutdown caused by garbage blocking the feeding device in the past, and improves the treatment efficiency of the garbage thermochemical treatment system. At the same time, intermittent feeding can be achieved, and the material layer in the thermochemical treatment furnace is always maintained at a certain height, so that the operating conditions in the thermochemical treatment furnace are stable and controllable, avoiding excessive pollutant emissions due to unstable operating conditions in the thermochemical treatment furnace, and realizing continuous and stable operation of the system during the thermochemical treatment of organic garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a device for thermal chemical treatment of organic waste provided by an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A front view of the thermochemical treatment furnace of the thermochemical treatment device for organic waste;

[0020] Figure 3 for Figure 2 Side view of a medium heat chemical treatment furnace;

[0021] Figure 4 for Figure 2 A top view of a medium-temperature chemical treatment furnace;

[0022] Figure 5 for Figure 2 Schematic diagram of the structure of a medium-temperature chemical treatment furnace;

[0023] Figure 6 for Figure 1 A front view of a feed box of a device for thermochemical treatment of medium organic waste;

[0024] Figure 7 for Figure 6 A top view of the feed box;

[0025] Figure 8 for Figure 1 A top view of the driving mechanism of the device for thermochemical treatment of organic waste;

[0026] Fig. 9 for Figure 8 Side view of the middle drive mechanism. DETAILED DESCRIPTION

[0027] See also Figure 1 An organic waste thermochemical treatment device provided in an embodiment of the present invention includes: a feed box 1, a grabbing manipulator 2 and a thermochemical treatment furnace 3.

[0028] The fixed end of the grabbing manipulator 2 is fixedly arranged on the thermochemical treatment furnace 3 , and the moving end of the grabbing manipulator 2 can move the feed box 1 to the top of the thermochemical treatment furnace 3 .

[0029] The bottom of the feed box 1 can be communicated with the top of the thermochemical treatment furnace 3 .

[0030] In the specific implementation mode of the present application, since the fixed end of the grabbing manipulator 2 is fixedly arranged on the thermochemical treatment furnace 3, the moving end of the grabbing manipulator 2 can move the feed box 1 to the top of the thermochemical treatment furnace 3, and the bottom of the feed box 1 can be connected with the top of the thermochemical treatment furnace 3. Therefore, the garbage that has undergone primary crushing and drying treatment is sent into the feed box 1 via the scraper conveyor, and the grabbing manipulator 2 lifts the feed box 1 filled with garbage to the top of the thermochemical treatment furnace 3, so that the feed box 1 and the thermochemical treatment furnace 3 are combined into a whole. When the temperature in the thermochemical treatment furnace 3 is higher than 600°C, the bottom of the feed box 1 is connected with the top of the thermochemical treatment furnace 3, and the garbage in the feed box 1 is fed to the thermochemical treatment furnace 3 from top to bottom at one time under the action of gravity. When the feeding is completed, the bottom of the feed box 1 and the top of the thermochemical treatment furnace 3 are closed. The connecting point is connected, and the above process is repeated to gradually fill the thermal chemical treatment furnace 3 with garbage. The requirements for the pre-crushing of garbage are relatively loose, and the requirements for the crushing particle size distribution are relatively low. Larger-sized garbage can also be thermally treated by this feeding method, and there will be no blockage, bridging of shed materials and material jamming when feeding with a spiral feeder. The operator's concerns about the blockage of the feeding system during operation are eliminated, and the problem of furnace shutdown caused by garbage blocking the feeding device in the past is solved, thereby improving the treatment efficiency of the garbage thermal chemical treatment system. At the same time, intermittent feeding can be achieved, and the material layer in the thermal chemical treatment furnace is always maintained at a certain height, so that the operating condition in the thermal chemical treatment furnace is stable and controllable, avoiding the excessive emission of pollutants caused by the unstable operating condition in the thermal chemical treatment furnace, and realizing the continuous and stable operation of the system during the thermal chemical treatment of organic garbage.

[0031] The feed box 1 may be a hollow shell body capable of loading garbage, and the cross section of the hollow shell body may be circular or square.

[0032] Specifically, the top of the feed box 1 is detachably provided with a cover 4. In this embodiment, the cover 4 can be arranged on the top of the feed box 1 by a lock.

[0033] The garbage that has undergone primary crushing and drying is sent into the feed box 1 through a scraper conveyor. After the feed box 1 is filled with garbage, the cover plate 4 on the top of the feed box 1 is closed to complete the garbage filling of the feed box 1 to avoid garbage leakage. At the same time, when the bottom of the feed box 1 is connected to the bottom of the thermochemical treatment furnace 3, the smoke leakage in the thermochemical treatment furnace 3 is avoided.

[0034] See also Figure 6-7 Specifically, a first gate valve 5 is slidably provided at the bottom of the feed box 1 to control the opening and closing of the bottom of the feed box 1 .

[0035] A second gate valve 6 is slidably provided on the top of the thermochemical treatment furnace 3 to control the opening and closing of the top of the thermochemical treatment furnace 3 .

[0036] A first slide groove is provided at the bottom of the feed box 1, a first rolling bearing 7 is provided in the first slide groove, a first gate valve 5 is provided in the first slide groove, and the first gate valve 5 is supported by the first rolling bearing 7 to facilitate the movement of the first gate valve 5.

[0037] A second slide groove is provided on the top of the thermochemical treatment furnace 3, a second rolling bearing 8 is provided in the second slide groove, and a second gate valve 6 is provided in the second slide groove. The second gate valve 6 is supported by the second rolling bearing 8 to facilitate the movement of the second gate valve 6.

[0038] See also Figure 8-9 Specifically, the organic waste thermochemical treatment device also includes: a driving mechanism 9.

[0039] The fixed end of the driving mechanism 9 is fixedly arranged on the top of the thermochemical treatment furnace 3 , and the action end of the driving mechanism 9 is connected to the first gate valve 5 and the second gate valve 6 .

[0040] The driving mechanism 9 includes: a fixed bracket 9-1, a telescopic cylinder 9-2, a plug plate 9-3 and a plug column 9-4.

[0041] The fixed support 9 - 1 is fixedly arranged on the top of the thermochemical treatment furnace 3 .

[0042] The fixed end of the telescopic oil cylinder 9 - 2 is fixedly arranged on the fixed bracket 9 - 1 , and the action end of the telescopic oil cylinder 9 - 2 is connected to the second gate valve 6 .

[0043] The plug post 9 - 4 is fixedly arranged on the first gate valve 5 .

[0044] The plug plate 9-3 is fixedly arranged at the action end of the telescopic oil cylinder 9-2, and an insertion hole is opened on the plug plate 9-3.

[0045] The plug post 9 - 4 can be inserted into the insertion hole.

[0046] When the grabbing manipulator 2 lifts the feed box 1 filled with garbage to the top of the thermochemical treatment furnace 3, the plug plate 9-3 is embedded in the embedding groove, the telescopic oil cylinder 9-2 is started, and the action end of the telescopic oil cylinder 9-2 pulls the second plug valve 6 to open the second plug valve 6. At the same time, the plug post 9-4 is inserted into the insertion hole, and the action end of the telescopic oil cylinder 9-2 pulls the plug plate 9-3, and the first plug valve 5 is opened through the plug post 9-4, realizing the linkage between the first plug valve 5 and the second plug valve 6 to ensure smooth feeding. The bottom of the feed box 1 is connected to the top of the thermochemical treatment furnace 3. Under the action of gravity, the garbage in the feed box 1 is fed to the thermochemical treatment furnace 3 from top to bottom at one time. When the feeding is completed, the telescopic cylinder 9-2 is started, and the action end of the telescopic cylinder 9-2 pushes the second gate valve 6 to close the second gate valve 6. At the same time, the action end of the telescopic cylinder 9-2 pushes the gate 9-3 to close the first gate valve 5 through the plug column 9-4, thereby realizing the linkage between the first gate valve 5 and the second gate valve 6, isolating the bottom of the feeding box 1 and the top of the thermochemical treatment furnace 3, and avoiding the leakage of smoke in the thermochemical treatment furnace 3.

[0047] Specifically, the height ratio of the thermochemical treatment furnace and the feed box is between 2:1-5:1, preferably 3.5:1, the volume ratio of the thermochemical treatment furnace and the feed box is between 6:1-2:1, preferably 4:1, and the ratio of the equivalent cross-sectional diameters of the thermochemical treatment furnace and the feed box is between 1.5:1-1:1, preferably 1:1.2. This enables the feed box 1 to intermittently feed the thermochemical treatment furnace 3. This feeding method always maintains the material layer in the thermochemical treatment furnace 3 at a certain height, so that the operating conditions in the thermochemical treatment furnace 3 are stable and controllable, solving the problem of excessive pollutant emissions caused by unstable operating conditions in the thermochemical treatment furnace 3, and realizing continuous and stable operation of the system during the thermochemical treatment of organic waste.

[0048] Specifically, ear hooks are fixedly provided on the outer wall of the feeding box 1 to facilitate the grasping of the grasping robot 2 .

[0049] At the same time, two grabbing teeth are fixedly provided at the action end of the grabbing manipulator 2; the two grabbing teeth can be engaged with the feeding box 1 to ensure the stability of grabbing.

[0050] Specifically, an opening 3 - 1 is provided on the top of the thermochemical treatment furnace 3 ; the cross section of the opening 3 - 1 is in a constricted shape, and the height of the constricted opening 3 - 1 is 100-500 mm, preferably 200 mm, for supporting the bottom of the feed box 1 .

[0051] See also Figure 2-4 Specifically, the thermochemical treatment furnace 3 adopts a two-stage combustion method.

[0052] The thermochemical treatment furnace 3 comprises: an opening 3-1, a first combustion chamber 3-2, a second combustion chamber high temperature flue gas outlet 3-3, a second combustion chamber 3-4, a second combustion chamber heat storage ball fence 3-5 and a pyrolysis furnace ash chamber 3-6.

[0053] The first combustion chamber 3-2 is a vertical furnace structure with a square outside and a round inside. The first combustion chamber 3-2 is for the pyrolysis and gasification reaction of garbage. From top to bottom, it is divided into a fuel layer, a drying layer, a pyrolysis layer, a combustion layer, a burnout layer, and a cooling and slag removal layer. By controlling the furnace temperature and oxygen supply conditions, the garbage is dried, pyrolyzed, and the coke is burned and burned in the first combustion chamber 3-2. The temperature of the drying section is about 300°C, and the temperature of the pyrolysis section is 600-850°C.

[0054] The garbage in the feed box 1 falls into the hot pyrolysis zone on the grate of the first combustion chamber 3-2 by gravity. In the first combustion chamber 3-2 with a temperature higher than 600°C, heat is obtained by convection, radiation and conduction to complete the thermal decomposition process. The volume of the garbage gradually decreases, and the furnace material level gradually decreases. When all the garbage in the feed box 1 falls into the furnace of the first combustion chamber 3-2, the second gate valve 6 is closed to prevent the pyrolysis gas in the pyrolysis furnace from escaping, and at the same time, the first gate valve 5 is closed. Subsequently, the feed box 1 is lifted off the top of the thermochemical treatment furnace 3 by the grabbing manipulator 2, and then another feed box 1 filled with garbage is lifted into the top of the thermochemical treatment furnace 3, thereby realizing continuous and stable feeding of the first combustion chamber 3-2. The feed box 1 is used to ensure the feeding continuity of the garbage pyrolysis gasification incineration system.

[0055] The garbage is intermittently fed from the top of the thermochemical treatment furnace 3 by the feed box 1, and the ash is continuously discharged from the bottom. During the pyrolysis and gasification incineration treatment process, the garbage must pass through the high-temperature combustion zone of the second combustion chamber 3-4 with a temperature of up to 1100°C. The conditions for dioxin production are not easy to form, the organic matter is completely burned, the volume reduction of the garbage is close to 90%, and the thermal burning reduction of the residue can reach less than 3%. The generated residue falls into the ash chamber 3-6 of the pyrolysis furnace, and the generated flue gas is discharged through the high-temperature flue gas outlet 3-3 of the second combustion chamber. The temperature in the second combustion chamber 3-4 is ensured by the second combustion chamber heat storage ball fence 3-5.

[0056] Based on the same inventive concept, the present application also provides a method for thermochemical treatment of organic waste, comprising:

[0057] The garbage that has undergone primary crushing and drying is sent into the feed box 1 via a scraper conveyor.

[0058] The grabbing manipulator 2 lifts the feed box 1 filled with garbage to the top of the thermochemical treatment furnace 3, so that the feed box 1 and the thermochemical treatment furnace 3 are combined into a whole.

[0059] When the temperature in the thermochemical treatment furnace 3 is higher than 600°C, the bottom of the feed box 1 is connected to the top of the thermochemical treatment furnace 3, and the garbage in the feed box 1 is fed to the thermochemical treatment furnace 3 from top to bottom at one time under the action of gravity.

[0060] When the feeding is completed, the connection between the bottom of the feeding box 1 and the top of the thermochemical treatment furnace 3 is closed.

[0061] The above process is repeated to gradually fill up the thermal chemical treatment furnace 3 with garbage.

[0062] Intermittent feeding can be achieved, and the material layer in the thermochemical treatment furnace is always maintained at a certain height, so that the operating conditions in the thermochemical treatment furnace are stable and controllable, avoiding excessive pollutant emissions caused by unstable operating conditions in the thermochemical treatment furnace, and realizing continuous and stable operation of the system during the thermochemical treatment of organic waste.

[0063] Among them, the gas generated after the organic waste is thermochemically treated in the thermochemical treatment furnace 3 can meet the pollutant limit requirements in the "Pollution Control Standard for Incineration of Municipal Waste" (GB18485-2014) after further purification.

[0064] Specifically, the main power supply and instrument panel power supply of the thermochemical treatment furnace 3 are turned on, the operating temperature and alarm temperature of the thermochemical treatment furnace 3 are set according to the requirements of the thermochemical treatment process, the draft fan of the thermochemical treatment furnace 3 is started, and the combustion-supporting blower of the thermochemical treatment furnace 3 is started after normal operation, and biomass fuel is added to the thermochemical treatment furnace 3 or the natural gas (diesel) igniter is turned on to assist combustion, and the furnace temperature is heated to above 600°C. At the same time, the garbage that has undergone primary crushing and drying treatment is sent to the feed box 1 through the scraper conveyor. After the garbage is full, the cover plate 4 on the top of the feed box 1 is closed to complete the first garbage filling in the feed box 1.

[0065] When the thermochemical treatment furnace 3 is shut down, ensure that the second gate valve 6 at the top of the thermochemical treatment furnace 3 and the first gate valve 5 at the bottom of the feed box 1 are in the closed state, and lift the feed box 1 away from the thermochemical treatment furnace 3 by the grabbing manipulator 2. When the temperature inside the thermochemical treatment furnace 3 drops below 200°C, turn off the induced draft fan and the blower of the thermochemical treatment furnace 3 in turn.

[0066] Specifically, the temperature of the garbage drying section of the thermochemical treatment furnace 3 is maintained between 250°C and 350°C, and the temperature of the thermochemical treatment section of the thermochemical treatment furnace 3 is maintained between 700°C and 1000°C, ensuring that the garbage completes the drying and thermochemical treatment process in the thermochemical treatment furnace 3.

[0067] The thermochemical treatment furnace 3 maintains a negative pressure of -50-20Pa in the free space in the furnace to prevent smoke from escaping.

[0068] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An organic waste thermochemical treatment device, characterized in that: include: Feed box, grabbing manipulator and thermochemical treatment furnace; The fixed end of the grabbing manipulator is fixedly arranged on the thermochemical treatment furnace, and the action end of the grabbing manipulator can carry the feed box to the top of the thermochemical treatment furnace; The bottom of the feed box can be connected to the top of the thermochemical treatment furnace; A first gate valve is slidably provided at the bottom of the feed box; A second gate valve is slidably provided on the top of the thermochemical treatment furnace; The organic waste thermochemical treatment device further comprises: a driving mechanism; The fixed end of the driving mechanism is fixedly arranged on the top of the thermochemical treatment furnace, and the action end of the driving mechanism is connected to the first gate valve and the second gate valve; The driving mechanism comprises: a fixed bracket, a telescopic oil cylinder, a plug plate and a plug column; The fixed bracket is fixedly arranged on the top of the thermochemical treatment furnace; The fixed end of the telescopic oil cylinder is fixedly arranged on the fixed bracket, and the action end of the telescopic oil cylinder is connected to the second gate valve; The plug column is fixedly arranged on the first plug valve; The plug plate is fixedly arranged at the action end of the telescopic oil cylinder, and an insertion hole is opened on the plug plate; The plug post can be inserted into the insertion hole.

2. The organic waste thermochemical treatment device according to claim 1, characterized in that: The top of the feed box is detachably provided with a cover.

3. The organic waste thermochemical treatment device according to claim 1, characterized in that: A first chute is provided at the bottom of the feed box, a first rolling bearing is provided in the first chute, and the first gate valve is provided in the first chute; A second chute is arranged on the top of the thermochemical treatment furnace, a second rolling bearing is arranged in the second chute, and the second gate valve is arranged in the second chute.

4. The organic waste thermochemical treatment device according to claim 1, characterized in that: The height ratio of the thermochemical treatment furnace to the feed box is between 2:1 and 5:1; The volume ratio of the thermochemical treatment furnace to the feed box is between 6:1 and 2:1; The ratio of the cross-sectional equivalent diameters of the thermochemical treatment furnace and the feed box is between 1.5:1 and 1:

1.

5. The organic waste thermochemical treatment device according to claim 1, characterized in that: An ear hook is fixedly arranged on the outer wall of the feed box.

6. A method for thermochemical treatment of organic waste, based on the thermochemical treatment device for organic waste according to any one of claims 1 to 5, characterized in that: The organic waste thermochemical treatment method comprises: The garbage that has undergone primary crushing and drying is sent into the feed box via a scraper conveyor; The grabbing manipulator lifts the feed box filled with garbage to the top of the thermochemical treatment furnace, so that the feed box and the thermochemical treatment furnace are integrated into a whole; When the temperature in the thermochemical treatment furnace is higher than 600°C, the bottom of the feed box is connected to the top of the thermochemical treatment furnace, and the garbage in the feed box is fed to the thermochemical treatment furnace from top to bottom at one time under the action of gravity; When the feeding is completed, closing the connection between the bottom of the feeding box and the top of the thermochemical treatment furnace; Repeat the above process to gradually fill the thermal chemical treatment furnace with garbage.

7. The method for thermochemical treatment of organic waste according to claim 6, characterized in that: The temperature of the garbage drying section of the thermochemical treatment furnace is maintained between 250°C and 350°C; The temperature of the thermochemical treatment section of the thermochemical treatment furnace is maintained between 700°C and 1000°C; The thermochemical treatment furnace maintains a negative pressure of -50-20Pa in the free space of the furnace.

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