Pyrolysis adsorption equipment

Abstract

The utility model relates to the technical field of environmental protection equipment, and discloses pyrolysis adsorption equipment which comprises a crushing cylinder, the bottom of the crushing cylinder is fixedly connected with a conical groove block, the right side of the top of the outer wall of the crushing cylinder is fixedly connected with a direct current motor, and the output end of the direct current motor is fixedly connected with a first bevel gear; the outer wall of the first bevel gear is connected with a second bevel gear in a meshed mode, the bottom of the second bevel gear is fixedly connected with a rotating column, the outer wall of the rotating column penetrates through the smashing cylinder and is fixedly connected with a triangular block, and the outer wall of the rotating column is fixedly connected with a plurality of cutting knives. According to the device, materials enter the crushing cylinder through the feeding pipe, the direct current motor is started to drive the bevel gear I, the bevel gear II and the rotating column to rotate, so that the cutting knife and the rolling wheel rotate to cut and crush the materials, and the crushed materials fall into the heat treatment box and are heated through the heater and the heat conduction pipe, so that the materials are uniformly heated, and the pyrolysis process is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a thermal desorption device. Background Art

[0002] Thermal desorption equipment is a highly efficient device for treating pollutants in gases or liquids. It is widely used in environmental governance and industrial waste gas treatment. The equipment uses the principle of combining thermal decomposition and adsorption to increase the surface temperature of the adsorbent by heating it, thereby improving its adsorption capacity for pollutants. This equipment has the advantages of high treatment efficiency, low energy consumption and simple operation. It is suitable for the removal of volatile organic compounds and odor pollutants. With the improvement of environmental protection requirements, thermal desorption equipment has broad application prospects in various industries.

[0003] After searching, the Chinese patent announcement number is: CN216716232U, which discloses a high-temperature pyrolysis device for domestic waste, involving the field of environmental protection technology, including an incinerator, the incinerator includes a furnace cover, a furnace body and a furnace bottom, the furnace bottom includes an ash layer and a combustion layer from bottom to top, and the furnace body includes a pyrolysis layer, a drying layer and an original garbage layer from bottom to top; an ash outlet is provided at the bottom of the ash layer, and there is a distance between the bottom of the ash layer and the bottom of the incinerator; a combustion-supporting system is provided on the combustion layer, and the combustion-supporting system is connected to the inside of the combustion layer; a feed port and a smoke outlet are provided on the furnace cover. The utility model can adjust the garbage volume by controlling the size of the combustion-supporting system according to the amount of garbage in the device. The pyrolysis speed of garbage is improved. Garbage is automatically divided into 5 compartments in the equipment. After multiple filtration and adsorption of each garbage layer, the pollutants are preliminarily treated and the heat energy is fully utilized. The device operates around the clock and automatically pyrolyzes 24 hours a day without external force. The air exchange is naturally balanced and can achieve 365 days of uninterrupted operation. However, in actual use, the materials that need to be pyrolyzed are in large pieces and stick together when entering the pyrolysis treatment device. As a result, during the pyrolysis process, the internal central area cannot be heated, which requires a lot of time to heat it, thereby increasing energy consumption and reducing decomposition efficiency. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a thermal desorption device, which aims to improve the problem in the prior art that large pieces are stuck together, resulting in the internal central area being unable to be heated during the pyrolysis process.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thermal desorption adsorption device, comprising a crushing cylinder, the bottom of the crushing cylinder is fixedly connected with a conical groove block, the outer wall top right side of the crushing cylinder is fixedly connected with a DC motor, the output end of the DC motor is fixedly connected with bevel gear 1, the outer wall of the bevel gear 1 is meshed with bevel gear 2, the bottom of the bevel gear 2 is fixedly connected with a rotating column, the outer wall of the rotating column passes through the crushing cylinder and is fixedly connected with a triangular block, the outer wall of the rotating column is fixedly connected with multiple cutting knives, the outer wall of the triangular block is rotatably connected to rolling wheels on the left and right sides of the outer wall of the triangular block, the outer wall of the crushing cylinder is connected to a feed pipe on the left side, the outer wall of the DC motor is provided with a protective cover, the bottom of the DC motor is connected to a heat treatment box, the inner wall bottom left side of the heat treatment box is fixedly connected with a heater, the inner wall top left side of the heat treatment box is fixedly connected with an inclined plate, the outer wall right side of the heater is fixedly connected with multiple heat conduction pipes, and the outer wall top right side of the heat treatment box is connected with an exhaust gas treatment mechanism.

[0006] Through the above technical solution: the material to be pyrolyzed is fed into the crushing barrel through the feed pipe, and at the same time, the DC motor is started to drive the bevel gear 1 to rotate, and the bevel gear 2 is driven to rotate through the meshing connection, thereby driving the rotation of the rotating column, and the outer cutting knife will also rotate, thereby cutting the entering material. At the same time, the rotation of the rotating column will drive the rotation of the triangular block, thereby causing the outer crushing wheel to rotate, so that the material falling above the conical groove block is crushed by the crushing wheel, and then falls on the inclined plate and enters the heat treatment box, and is heated by starting the heater, and the heat is transferred to the inner wall of the crushed material by using the heat pipe, so that the material is heated evenly and its pyrolysis rate is accelerated.

[0007] As a further description of the above technical solution:

[0008] The exhaust gas treatment mechanism includes a conical air intake block, which is connected to the top of the outer wall of the heat treatment box. The exhaust gas combustion box is fixedly connected to the right side of the top of the outer wall of the heat treatment box. The bottom of the inner wall of the exhaust gas combustion box is fixedly connected to a hollow partition. The right side of the outer wall of the exhaust gas combustion box is fixedly connected to an igniter, and the left side of the igniter is fixedly connected to an ignition tube. The outer wall of the ignition tube passes through the exhaust gas combustion box and the hollow partition. The top of the exhaust gas combustion box is connected to a U-shaped tube, and the right side of the top of the outer wall of the exhaust gas combustion box is fixedly connected to an exhaust pipe. The outer wall of the U-shaped tube passes through the exhaust pipe. The front and rear sides of the outer wall of the exhaust gas combustion box are connected to a hot water pipe, and the bottom of the hot water pipe passes through the heat treatment box and corresponds to the heat conduction pipe.

[0009] Through the above technical solution: in the heat treatment box, as it pyrolyzes, a large amount of waste gas will be generated, and the waste gas enters the waste gas combustion box through the conical air inlet block. At this time, by starting the igniter, a flame is generated at the ignition tube, and the incoming waste gas is burned. The heat generated by the combustion is absorbed by the water on the outside of the hollow partition, and the heat is transferred to the heat conduction pipe through the heat conduction pipe. The waste gas that has been burned enters the exhaust pipe through the U-shaped pipe. The bottom of the exhaust pipe is filled with treatment liquid, which can further purify the burned waste gas, thereby ensuring that the discharged waste gas will not pollute the atmosphere.

[0010] As a further description of the above technical solution:

[0011] Arc-shaped clamping plates are provided on the front and rear sides of the outer wall of the crushing cylinder, the bottom of the arc-shaped clamping plates is fixedly connected with a fixing column, the two fixing columns are fixedly connected to the top of the heat treatment box, and the left and right sides of the outer walls of the two arc-shaped clamping plates are threadedly connected with fixing screws.

[0012] Through the above technical solution: the arc-shaped clamping plate is fixed by fixing screws, thereby fixing the crushing cylinder, and at the same time the fixing column can enhance the connection strength between the crushing cylinder and the heat treatment box.

[0013] As a further description of the above technical solution:

[0014] A conical rain shield is fixedly connected to the top of the exhaust pipe, and a plurality of exhaust ports are opened on the top of the outer wall of the exhaust pipe.

[0015] Through the above technical solution: the conical rain shield can prevent rainwater from entering the exhaust pipe, and the treated gas is discharged through the exhaust port.

[0016] As a further description of the above technical solution:

[0017] An alarm light is fixedly connected to the front side of the top of the outer wall of the heat treatment box, and a concentration detector is fixedly connected to the right side of the outer wall of the heat treatment box.

[0018] Through the above technical solution: the alarm light can be used to remind the staff when a fault occurs, and the concentration of harmful gases in the heat treatment box can be monitored by the concentration detector.

[0019] As a further description of the above technical solution:

[0020] An observation window is provided on the front side of the outer wall of the heat treatment box, and the outer wall of the observation window is fixedly connected to an outer frame.

[0021] Through the above technical solution: the internal situation of the heat treatment box can be observed through the observation window.

[0022] As a further description of the above technical solution:

[0023] The front and rear sides of the bottom of the outer wall of the heat treatment box are fixedly connected with U-shaped brackets, and the bottom of the U-shaped bracket is fixedly connected with a rubber buffer pad.

[0024] Through the above technical solution: the U-shaped bracket and the rubber buffer pad can reduce the vibration of the equipment to the ground during operation.

[0025] As a further description of the above technical solution:

[0026] The bottom of the outer wall of the heat treatment box is connected to a hollow block, and the inner wall of the hollow block is provided with a baffle, and the baffle is engaged with the hollow block.

[0027] Through the above technical solution: the baffle can prevent the pyrolysis material from falling, and it is convenient to clean up the processed material.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, the material enters the crushing cylinder through the feed pipe, and the DC motor is started to drive the bevel gear 1, bevel gear 2 and rotating column to rotate, so that the cutting knife and the crushing wheel rotate to cut and crush the material. The crushed material falls into the heat treatment box and is heated by the heater and heat pipe to ensure that the material is heated evenly and accelerate the pyrolysis process.

[0030] 2. In the utility model, in the heat treatment box, the exhaust gas enters the combustion box through the conical air inlet block, the igniter is started to generate flame to burn the exhaust gas, the heat generated by the combustion is absorbed by the water on the outside of the hollow partition, and is transferred to the heat pipe through the heat conduction water pipe. The exhaust gas after combustion enters the exhaust pipe filled with treatment liquid through the U-shaped pipe, and is further purified and then discharged to ensure that it will not pollute the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a thermal desorption device proposed in the utility model;

[0032] Figure 2 This is a front view of a thermal desorption device proposed by the utility model;

[0033] Figure 3 This is a side view of a thermal desorption device proposed by the utility model;

[0034] Figure 4 This is a cross-sectional view of a pulverizing cylinder of a thermal desorption device proposed in the present utility model;

[0035] Figure 5 This is a cross-sectional view of a heat treatment box of a thermal desorption device proposed in the present invention;

[0036] Figure 6This is a cross-sectional view of an exhaust gas combustion box of a thermal desorption device proposed in the utility model.

[0037] Legend:

[0038] 1. Crushing cylinder; 2. Waste gas treatment mechanism; 201. Waste gas combustion box; 202. Conical air intake block; 203. Hollow partition; 204. Ignitor; 205. U-shaped tube; 206. Exhaust pipe; 207. Ignition tube; 208. Heat conduction pipe; 3. Conical groove block; 4. DC motor; 5. Bevel gear 1; 6. Bevel gear 2; 7. Rotating column; 8. Cutting knife; 9. Triangular block; 10. Crushing wheel; 1 1. Feed pipe; 12. Protective cover; 13. Heat treatment box; 14. Inclined plate; 15. Heater; 16. Heat pipe; 17. Arc-shaped clamp; 18. Fixing column; 19. Fixing screw; 20. Conical rain shield; 21. Exhaust port; 22. Warning light; 23. Concentration detector; 24. Observation window; 25. Outer frame; 26. U-shaped bracket; 27. Rubber cushion; 28. Hollow block; 29. ​​Baffle. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Reference Figure 1 、 Figure 2 and Figure 3, the utility model provides an embodiment: a thermal desorption device, including a crushing cylinder 1, the bottom of the crushing cylinder 1 is fixedly connected to a conical groove block 3, the top right side of the outer wall of the crushing cylinder 1 is fixedly connected to a DC motor 4, the output end of the DC motor 4 is fixedly connected to a bevel gear 1 5, the outer wall of the bevel gear 1 5 is meshedly connected to a bevel gear 2 6, the bottom of the bevel gear 2 6 is fixedly connected to a rotating column 7, the outer wall of the rotating column 7 passes through the crushing cylinder 1 and is fixedly connected to a triangular block 9, the outer wall of the rotating column 7 is fixedly connected to a plurality of cutting knives 8, the outer wall of the triangular block 9 is rotatably connected to a rolling wheel 10, the DC motor 4 drives the bevel gear 1 5 to rotate, and drives the rotation of the bevel gear 2 6 through the meshing connection, thereby driving the rotation of the rotating column 7, and at the same time the outer cutting knife 8 will also rotate, The incoming material is cut, and at the same time, the rotation of the rotating column 7 drives the rotation of the triangular block 9, thereby rotating the outer crushing wheel 10, so that the material falling on the top of the conical groove block 3 is crushed by the crushing wheel 10; the left side of the top of the outer wall of the crushing cylinder 1 is connected to the feeding pipe 11, the outer wall of the DC motor 4 is provided with a protective cover 12, the bottom of the DC motor 4 is connected to the heat treatment box 13, the left side of the bottom of the inner wall of the heat treatment box 13 is fixedly connected to a heater 15, the left side of the top of the inner wall of the heat treatment box 13 is fixedly connected to an inclined plate 14, and the right side of the outer wall of the heater 15 is fixedly connected to a plurality of heat pipes 16, the heater 15 is heated, and the heat is transferred to the inner wall of the crushed material by using the heat pipes 16; the right side of the top of the outer wall of the heat treatment box 13 is connected to the exhaust gas treatment mechanism 2;

[0041] Specifically, the material to be pyrolyzed is fed into the crushing barrel 1 through the feed pipe 11. At the same time, the DC motor 4 is started to drive the bevel gear 1 5 to rotate, and the bevel gear 2 6 is driven to rotate through the meshing connection, thereby driving the rotation of the rotating column 7. At the same time, the outer cutting knife 8 will also rotate, thereby cutting the entering material. At the same time, the rotation of the rotating column 7 will drive the rotation of the triangular block 9, thereby causing the outer crushing wheel 10 to rotate, so that the material falling above the conical groove block 3 is crushed by the crushing wheel 10, and then falls on the inclined plate 14 and enters the heat treatment box 13, and is heated by starting the heater 15, and the heat is transferred to the inner wall of the crushed material by the heat pipe 16, so that the material is heated evenly and its pyrolysis rate is accelerated.

[0042] Reference Figure 1 、 Figure 2 and Figure 3The exhaust gas treatment mechanism 2 includes a conical air intake block 202, which is connected to the top of the outer wall of the heat treatment box 13. The exhaust gas combustion box 201 is fixedly connected to the right side of the top of the outer wall of the heat treatment box 13. The bottom of the inner wall of the exhaust gas combustion box 201 is fixedly connected to a hollow partition 203. The right side of the outer wall of the exhaust gas combustion box 201 is fixedly connected to an igniter 204, and the left side of the igniter 204 is fixedly connected to an ignition tube 207. The outer wall of the ignition tube 207 passes through the exhaust gas combustion box 201 and The hollow baffle 203 and the igniter 204 generate a flame at the ignition tube 207 to burn the incoming waste gas. The top of the waste gas combustion box 201 is connected to a U-shaped tube 205. The exhaust pipe 206 is fixedly connected to the right side of the top of the outer wall of the waste gas combustion box 201. The outer wall of the U-shaped tube 205 passes through the exhaust pipe 206. The front and rear sides of the outer wall of the waste gas combustion box 201 are connected to a hot water pipe 208. The bottom of the hot water pipe 208 passes through the heat treatment box 13 and is connected to the corresponding heat pipe 16.

[0043] Specifically, in the heat treatment box 13, as it is pyrolyzed, a large amount of waste gas is generated. The waste gas enters the waste gas combustion box 201 through the conical air inlet block 202. At this time, by starting the igniter 204, a flame is generated at the ignition tube 207, and the incoming waste gas is burned. The heat generated by the combustion is absorbed by the water on the outside of the hollow partition 203, and the heat is transferred to the heat pipe 16 through the heat pipe 208. The waste gas that has been burned enters the exhaust pipe 206 through the U-shaped tube 205. The bottom of the exhaust pipe 206 is filled with a treatment liquid, which can further purify the burned waste gas, thereby ensuring that the discharged waste gas will not pollute the atmosphere.

[0044] Reference Figure 1 、 Figure 2 and Figure 3 , the front and rear sides of the outer wall of the pulverizing cylinder 1 are provided with an arc-shaped splint 17, and the bottom of the arc-shaped splint 17 is fixedly connected to a fixing column 18, and the two fixing columns 18 are fixedly connected to the top of the heat treatment box 13, and the left and right sides of the outer walls of the two arc-shaped splints 17 are threadedly connected with fixing screws 19. The arc-shaped splint 17 is fixed by the fixing screws 19, so as to fix the pulverizing cylinder 1, and at the same time, the fixing column 18 can enhance the connection strength between the pulverizing cylinder 1 and the heat treatment box 13; the top of the exhaust pipe 206 is fixedly connected with a conical rain shield 20, and the top of the outer wall of the exhaust pipe 206 is provided with a plurality of exhaust ports 21. The conical rain shield 20 can prevent rainwater from entering the exhaust pipe 206, and the treated gas is discharged through the exhaust port 21; the front side of the top of the outer wall of the heat treatment box 13 is fixedly connected with an alarm light 22, and the right side of the outer wall of the heat treatment box 13 is fixedly connected with a concentration detector 23. The alarm light 22 can remind the staff when a fault occurs, and the concentration detector 23 can monitor the concentration of harmful gases in the heat treatment box 13;

[0045] Specifically, the arc-shaped clamping plate 17 is fixed by fixing screws 19 to fix the crushing cylinder 1. At the same time, the fixing column 18 can enhance the connection strength between the crushing cylinder 1 and the heat treatment box 13. The conical rain shield 20 can prevent rainwater from entering the exhaust pipe 206, and the treated gas is discharged through the exhaust port 21. The alarm light 22 can remind the staff when a fault occurs, and the concentration detector 23 can monitor the concentration of harmful gases in the heat treatment box 13.

[0046] Reference Figure 1 、 Figure 2 and Figure 3 An observation window 24 is provided on the front side of the outer wall of the heat treatment box 13. The outer wall of the observation window 24 is fixedly connected to an outer frame 25. The observation window 24 can be used to observe the internal situation of the heat treatment box 13; the front and rear sides of the bottom of the outer wall of the heat treatment box 13 are fixedly connected to U-shaped brackets 26, and the bottom of the U-shaped bracket 26 is fixedly connected to a rubber buffer pad 27. The U-shaped bracket 26 and the rubber buffer pad 27 can reduce the vibration of the equipment to the ground during operation; the bottom of the outer wall of the heat treatment box 13 is connected to a hollow block 28, and the inner wall of the hollow block 28 is provided with a baffle 29, which is engaged with the hollow block 28. The baffle 29 can prevent the pyrolysis material from falling and facilitate the cleaning of the treated material;

[0047] Specifically, the internal situation of the heat treatment box 13 can be observed through the observation window 24, the U-shaped bracket 26 and the rubber buffer pad 27 can reduce the vibration of the equipment on the ground during operation, and the baffle 29 can prevent the pyrolysis material from falling and facilitate the cleaning of the treated material.

[0048] Working principle: Before using the device, first, the material to be pyrolyzed is introduced into the crushing cylinder 1 through the feed pipe 11. At the same time, the DC motor 4 is started to drive the bevel gear 1 5 to rotate, and the bevel gear 2 6 is rotated through the meshing transmission, thereby driving the rotation of the rotating column 7. The movement of the rotating column 7 drives the outer cutting knife 8 to rotate synchronously to cut the incoming material. At the same time, the rotation of the rotating column 7 will drive the triangular block 9 to rotate, thereby rotating the outer crushing wheel 10 to crush the material located above the conical groove block 3. Subsequently, the material falls into the inclined plate 14 and enters the heat treatment box 13. The heater 15 is started for heating, and the heat pipe 16 is used to transfer heat to the inner wall of the crushed material to ensure that the material is heated evenly. And accelerate the pyrolysis rate; and through the waste gas treatment mechanism 2, in the heat treatment box 13, as the pyrolysis process proceeds, a large amount of waste gas will be generated, and these waste gases are introduced into the waste gas combustion box 201 through the conical air inlet block 202. At this time, the igniter 204 is started and the end of the ignition tube 207 is ignited, thereby forming a flame in the waste gas combustion box 201, and the introduced waste gas is burned. The heat generated by the combustion is absorbed by the water on the outside of the hollow partition 203 and is transferred to the heat pipe 16 through the heat conduction water pipe 208. The waste gas that has been burned is then passed through the U-shaped tube 205 into the exhaust pipe 206. The bottom of the exhaust pipe 206 is filled with a treatment liquid, which can further purify the waste gas after combustion to ensure that the discharged waste gas will not cause pollution to the atmosphere.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thermal desorption device, comprising a crushing cylinder (1), characterized in that: The bottom of the crushing cylinder (1) is fixedly connected to a conical groove block (3), the top right side of the outer wall of the crushing cylinder (1) is fixedly connected to a DC motor (4), the output end of the DC motor (4) is fixedly connected to a bevel gear 1 (5), the outer wall of the bevel gear 1 (5) is meshedly connected to a bevel gear 2 (6), the bottom of the bevel gear 2 (6) is fixedly connected to a rotating column (7), the outer wall of the rotating column (7) passes through the crushing cylinder (1) and is fixedly connected to a triangular block (9), the outer wall of the rotating column (7) is fixedly connected to a plurality of cutting knives (8), and the outer wall of the triangular block (9) is rotated on both sides. The crushing cylinder (1) is dynamically connected to a crushing wheel (10), the left side of the top of the outer wall of the crushing cylinder (1) is connected to a feed pipe (11), the outer wall of the DC motor (4) is provided with a protective cover (12), the bottom of the DC motor (4) is connected to a heat treatment box (13), the left side of the bottom of the inner wall of the heat treatment box (13) is fixedly connected to a heater (15), the left side of the top of the inner wall of the heat treatment box (13) is fixedly connected to an inclined plate (14), the right side of the outer wall of the heater (15) is fixedly connected to a plurality of heat pipes (16), and the right side of the top of the outer wall of the heat treatment box (13) is connected to an exhaust gas treatment mechanism (2).

2. The thermal desorption device according to claim 1, characterized in that: The exhaust gas treatment mechanism (2) comprises a conical air intake block (202), the conical air intake block (202) is connected to the top of the outer wall of the heat treatment box (13), the right side of the top of the outer wall of the heat treatment box (13) is fixedly connected to an exhaust gas combustion box (201), the bottom of the inner wall of the exhaust gas combustion box (201) is fixedly connected to a hollow partition (203), the right side of the outer wall of the exhaust gas combustion box (201) is fixedly connected to an igniter (204), the left side of the igniter (204) is fixedly connected to an ignition tube (207), and the ignition tube (207) is fixedly connected to the ignition tube (207). ) penetrates the exhaust gas combustion box (201) and the hollow partition (203), the top of the exhaust gas combustion box (201) is connected to a U-shaped tube (205), the right side of the top of the outer wall of the exhaust gas combustion box (201) is fixedly connected to an exhaust pipe (206), the outer wall of the U-shaped tube (205) penetrates the exhaust pipe (206), the front and rear sides of the outer wall of the exhaust gas combustion box (201) are connected to a heat conduction pipe (208), the bottom of the heat conduction pipe (208) penetrates the heat treatment box (13) and corresponds to the heat conduction pipe (16).

3. The thermal desorption device according to claim 1, characterized in that: The front and rear sides of the outer wall of the pulverizing cylinder (1) are both provided with arc-shaped clamping plates (17), the bottom of the arc-shaped clamping plates (17) is fixedly connected with a fixing column (18), the two fixing columns (18) are fixedly connected to the top of the heat treatment box (13), and the left and right sides of the outer walls of the two arc-shaped clamping plates (17) are both threadedly connected with fixing screws (19).

4. The thermal desorption device according to claim 2, characterized in that: A conical rain shield (20) is fixedly connected to the top of the exhaust pipe (206), and a plurality of exhaust ports (21) are provided on the top of the outer wall of the exhaust pipe (206).

5. The thermal desorption device according to claim 1, characterized in that: An alarm light (22) is fixedly connected to the front side of the top of the outer wall of the heat treatment box (13), and a concentration detector (23) is fixedly connected to the right side of the outer wall of the heat treatment box (13).

6. The thermal desorption device according to claim 1, characterized in that: An observation window (24) is provided on the front side of the outer wall of the heat treatment box (13), and an outer frame (25) is fixedly connected to the outer wall of the observation window (24).

7. The thermal desorption device according to claim 1, characterized in that: The front and rear sides of the bottom of the outer wall of the heat treatment box (13) are fixedly connected to U-shaped brackets (26), and the bottom of the U-shaped bracket (26) is fixedly connected to a rubber buffer pad (27).

8. The thermal desorption device according to claim 1, characterized in that: The bottom of the outer wall of the heat treatment box (13) is connected to a hollow block (28), and the inner wall of the hollow block (28) is provided with a baffle (29), and the baffle (29) is engaged with the hollow block (28).

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