Volatile organic waste gas treatment device

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a volatile organic waste gas treatment device which comprises a bottom plate, a supporting frame fixedly connected to the left side of the top end of the bottom plate, a motor fixedly connected to the top end of the supporting frame, a supporting plate fixedly connected to the left side of the top end of the bottom plate, and a large gear rotationally connected to the output end of the motor and penetrating through the supporting plate. The bottom end of the large gear is in meshed connection with a long arc-shaped plate, the rear side of the long arc-shaped plate is fixedly connected with a long plate, the top of the long plate is fixedly connected with a first clamping block, the outer wall of the right end of the large gear is fixedly connected with a small gear, and the top end of the small gear is in meshed connection with a short arc-shaped plate. According to the waste gas collecting device, the small gear and the large gear are driven by the motor to rotate, finally, the first clamping block and the second clamping block can be clamped and fixed to the joint of the gas suction pipe and the second connecting pipe along with rotation, it is guaranteed that waste gas cannot leak in the conveying process, the waste gas collecting efficiency is improved, and it is guaranteed that the generated waste gas can be collected and treated in time.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a volatile organic waste gas treatment device. Background Art

[0002] Waste gas refers to toxic and harmful gases emitted by humans in the process of production and life. The waste gas emitted by chemical plants, steel mills, pharmaceutical factories, coking plants and refineries has a strong odor, seriously polluting the environment and affecting human health. If a large amount of industrial waste gas is discharged into the atmosphere without being treated to meet the standards, it will inevitably cause the quality of the atmospheric environment to decline, bring serious harm to human health, and cause huge losses to the national economy.

[0003] Volatile organic waste gas is a type of organic compound waste gas that exists in the air in the form of vapor at room temperature. In the petrochemical production process, the refining and cracking of crude oil will produce a large amount of hydrocarbon waste gas. In the furniture manufacturing process, the paints and adhesives used will release benzene waste gas. In the pharmaceutical process of alcohols, aldehydes, ketones and oxygen-containing organic compounds, the organic solvents used will evaporate during the production process to produce oxygen-containing organic waste gas. In the electronic manufacturing process, the cleaning agents used will also contain chlorine-containing organic compounds, which will evaporate during the cleaning process to produce waste gas.

[0004] The volatile organic waste gas treatment device is an important equipment for treating volatile organic waste gas generated in industrial production and other processes. It can effectively remove volatile organic pollutants in the waste gas with high purification efficiency. Different treatment units can treat organic waste gas of different types and concentrations to meet the waste gas treatment needs in various industrial production processes. However, the interface is unstable and fixed, and blockage and backflow will occur during the transmission process, affecting the waste gas treatment. It will also cause gaps due to thermal expansion and contraction and vibration, causing waste gas leakage to pollute the surrounding environment and affect human physical and mental health. At the same time, the dust carried in the waste gas is easy to accumulate in the equipment, affecting normal operation. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a volatile organic waste gas treatment device, which aims to improve the problem in the existing technology that the interface is unstable and fixed, which will cause blockage and backflow during the transmission process, affecting the waste gas treatment, and will also cause gaps due to thermal expansion and contraction and vibration, causing waste gas leakage to pollute the surrounding environment, affecting the physical and mental health of the human body. At the same time, the dust carried in the waste gas is easily accumulated in the equipment, affecting the normal operation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a volatile organic waste gas treatment device, comprising a bottom plate, a support frame fixedly connected to the left side of the top of the bottom plate, a motor fixedly connected to the top of the support frame, a support plate fixedly connected to the left side of the top of the bottom plate, an output end of the motor passes through the support plate and is rotatably connected to a large gear, the bottom end of the large gear is meshedly connected to a long arc plate, the rear side of the long arc plate is fixedly connected to a long plate, the top of the long plate is fixedly connected to a snap-fit block 1, and the outer wall of the right end of the large gear is fixedly connected There is a small gear, the top of the small gear is meshedly connected with a short arc plate, the front side of the short arc plate is fixedly connected to a short plate, the middle part of the short plate is rotatably connected to a column, the left end of the column passes through the long plate and is fixedly connected to the right side of the support plate, the top of the short plate is fixedly connected with a snap-fit block 2, an air intake pipe is snapped between the adjacent snap-fit block 2 and the snap-fit block 1, the outer wall of the air intake pipe is fixedly connected to the top of the support plate, a fan is installed inside the air intake pipe, and a purification mechanism is provided at the top of the bottom plate, and the purification mechanism is used to treat exhaust gas.

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

[0008] The purification mechanism includes a support platform, the bottom of the support platform is fixedly connected to the right side of the top of the base plate, the top of the support platform is fixedly connected to a catalytic burner, the bottom left side of the catalytic burner is connected to a water outlet pipe, the top right side of the catalytic burner is connected to an exhaust pipe, the top right side of the catalytic burner is connected to connecting pipe 1, the middle part of connecting pipe 1 is fixedly connected to a heater, the left end of connecting pipe 1 is connected to an outlet pipe, the bottom end of the outlet pipe is connected to a cylindrical tube, the bottom end of the cylindrical tube is connected to a conical tube, the bottom end of the conical tube is fixedly connected to a waste dust box, and the top left end of the cylindrical tube is connected to the right end of connecting pipe 2.

[0009] As a further description of the above technical solution:

[0010] The top of the bottom plate is fixedly connected with a water storage tank, and the front end of the water storage tank is connected with a drainage pipe.

[0011] As a further description of the above technical solution:

[0012] The front end of the support platform is fixedly connected with a control panel, and the front end of the catalytic burner is fixedly connected with an observation window.

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

[0014] The left side of the top of the bottom plate is fixedly connected with a battery panel, and the left side of the front end of the waste dust box is rotatably connected with a rotating column 1.

[0015] As a further description of the above technical solution:

[0016] The right side of the rotating column 1 is fixedly connected with a box door, and the right side of the front end of the box door is threadedly connected with two screws.

[0017] As a further description of the above technical solution:

[0018] The front end of the box door is fixedly connected to two fixing columns, and a second rotating column is rotatably connected between adjacent fixing columns.

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

[0020] The left and right ends of the rotating column 2 are rotatably connected to handles, and the outer wall of the handle is fixedly connected to an anti-slip sleeve

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the motor drives the small gear and the large gear to rotate, and finally the locking block 1 and the locking block 2 will lock and fix the interface between the intake pipe and the connecting pipe 2 together with the rotation, ensuring that the exhaust gas will not leak during the transmission process, improving the exhaust gas collection efficiency, and ensuring that the generated exhaust gas can be collected and processed in time.

[0023] 2. In the present invention, when the gas enters the cylindrical tube from the connecting pipe 2 at a certain speed, it finally reaches the emission standard in the catalytic burner, and the oxidized carbon dioxide is discharged from the exhaust pipe and the water is discharged from the water outlet pipe, thereby achieving the purpose of purification, protecting the exhaust gas treatment equipment, and enhancing the process effect of the subsequent catalytic burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective view of a bottom plate of a volatile organic waste gas treatment device proposed in the present invention;

[0025] Figure 2 This is a side view of a support plate of a volatile organic waste gas treatment device proposed in the present invention;

[0026] Figure 3 This is a cylindrical diagram showing a volatile organic waste gas treatment device proposed in the present utility model;

[0027] Figure 4 This is a schematic diagram of the second connecting pipe of a volatile organic waste gas treatment device proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of a waste dust box of a volatile organic waste gas treatment device proposed in the present invention.

[0029] Legend:

[0030] 1. Bottom plate; 2. Purification mechanism; 201. Support platform; 202. Water outlet pipe; 203. Catalytic burner; 204. Exhaust pipe; 205. Connecting pipe 1; 206. Heater; 207. Exhaust pipe; 208. Cylindrical pipe; 209. Conical pipe; 210. Waste dust box; 3. Support frame; 4. Motor; 5. Support plate; 6. Connecting pipe 2; 7. Box door; 8. Water tank; 9. Drain pipe; 10. Control panel; 11. Observation window; 12. Battery panel; 13. Fan; 14. Intake pipe; 15. Clamping block 1; 16. Clamping block 2; 17. Long board; 18. Short board; 19. Short arc board; 20. Long arc board; 21. Small gear; 22. Large gear; 23. Cylinder; 24. Rotating column 1; 25. Rotating column 2; 26. Handle; 27. Screw; 28. Anti-slip sleeve; 29. Fixing column. DETAILED DESCRIPTION

[0031] 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.

[0032] Please see the attached Figure 1 , Attachment Figure 3 and attached Figure 5, the utility model provides an embodiment: a volatile organic waste gas treatment device, including a base plate 1, a support frame 3 is fixedly connected to the left side of the top of the base plate 1, the top of the support frame 3 is fixedly connected to the motor 4, the top left side of the base plate 1 is fixedly connected to a support plate 5, the output end of the motor 4 passes through the support plate 5 and is rotatably connected to a large gear 22, at the left side of the top of the base plate 1, there is a support frame 3 fixedly connected, the top part of the support frame 3 is also fixedly connected to a motor 4 to ensure its stability and reliability, a support plate 5 is also fixedly connected to the left side of the top of the base plate 1 to provide additional support and stability, the output end of the motor 4 is connected to a large gear 22 through a rotation connection passing through the support plate 5, and the bottom end of the large gear 22 is meshed and connected There is a long arc plate 20, the rear side of the long arc plate 20 is fixedly connected to the long plate 17, the top of the long plate 17 is fixedly connected to the snap block 15, the right end outer wall of the large gear 22 is fixedly connected to the small gear 21, the top of the small gear 21 is meshed with the short arc plate 19, the bottom end of the large gear 22 is connected to a long arc plate 20 by meshing, the rear side of this long arc plate 20 is fixedly connected to a long plate 17, the top position of the long plate 17 is also fixedly connected to a snap block 15 to ensure its functionality, a small gear 21 is also fixedly connected to the right end outer wall of the large gear 22, the top of this small gear 21 is connected to a short arc plate 19 by meshing, the front side of the short arc plate 19 is fixedly connected to the short plate 18, the short The middle part of the plate 18 is rotatably connected with a column 23, the left end of the column 23 passes through the long plate 17 and is fixedly connected to the right side of the support plate 5, and the top of the short plate 18 is fixedly connected with a snap-fit block 2 16, and the suction pipe 14 is clamped between the snap-fit block 2 16 and the adjacent snap-fit block 1 15, and is connected to the column 23 in the middle position of the short plate 18. The left end part of the column 23 also passes through the long plate 17 and is firmly fixedly connected to the right side of the support plate 5. In the top area of the short plate 18, the suction pipe 14 can be clamped between the snap-fit block 2 16 and another snap-fit block 1 15, ensuring the stability and functionality of the suction pipe 14. The outer wall of the suction pipe 14 is fixedly connected to the top of the support plate 5, and the fan 13 is installed inside the suction pipe 14. The top of the bottom plate 1 is provided with a purification Mechanism 2, the purification mechanism 2 is used for treating exhaust gas, the top of the bottom plate 1 is fixedly connected with a water storage tank 8, the front end of the water storage tank 8 is connected with a drain pipe 9, the outer wall of the air intake pipe 14 is tightly combined with the top of the support plate 5 through a firm fixed connection, ensuring the stability and reliability between the two, inside the air intake pipe 14, an efficient fan 13 is installed, this fan 13 is responsible for sucking in air and performing subsequent treatment, the top of the bottom plate 1 is provided with a purification mechanism 2, the main function of the purification mechanism 2 is to treat exhaust gas to ensure that the discharged gas meets environmental protection standards, the top of the bottom plate 1 is also fixedly connected with a water storage tank 8, the function of the water storage tank 8 is to store the water source generated after purification, and the front end of the water storage tank 8 is designed with a drain pipe 9,The function of the drain pipe 9 is to drain the water;

[0033] Specifically, the base plate 1 firmly supports the entire system, and a support frame 3 is provided on the left side of its top to support the components on the left side. The motor 4 is fixed by the support plate 5, and its output end is connected to the large gear 22 and the small gear 21. The large gear 22 rotates under the drive of the motor 4, and the bottom end of the large gear 22 is tightly engaged with the long arc plate 20. As the large gear 22 rotates, the long arc plate 20 will move accordingly. The outer wall of the right end of the large gear 22 is fixedly connected to the small gear 21, and the top of the small gear 21 is engaged with the short arc plate 19. As the large gear 22 rotates, the small gear 21 also It will rotate synchronously, thereby driving the short arc plate 19 to move. The front side of the short arc plate 19 is connected to the short plate 18. The middle part of the short plate 18 is rotatably connected to the column 23. The left end of the column 23 passes through the long plate 17 and is fixedly connected to the right side of the support plate 5, ensuring the stability of the entire structure. A snap-fit block 2 16 is provided on the top of the short plate 18. The snap-fit block 2 16 and the snap-fit block 1 15 can snap the intake pipe 14 and the connecting pipe 2 6. The outer wall of the intake pipe 14 is fixedly connected to the top of the support plate 5, and a fan 13 is installed inside to suck volatile organic waste gas into the device.

[0034] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 5The purification mechanism 2 includes a support platform 201, the bottom of the support platform 201 is fixedly connected to the right side of the top of the base plate 1, the top of the support platform 201 is fixedly connected to a catalytic burner 203, the bottom left side of the catalytic burner 203 is connected to a water outlet pipe 202, the top right side of the catalytic burner 203 is connected to an exhaust pipe 204, the bottom of the support platform 201 is fixedly connected to the right side of the top of the base plate 1 to ensure that there is no relative movement between the two, and the top of the support platform 201 is fixedly connected to a catalytic burner 203, which is designed to efficiently carry out catalytic reactions, thereby achieving purification of harmful gases. The catalytic burner 203 The left side of the bottom is connected to the water outlet pipe 202 through a piping system, which ensures that the waste water generated during the combustion process can be discharged through the water outlet pipe 202, thereby avoiding pollution to the surrounding environment. The right side of the top of the catalytic burner 203 is connected to the exhaust pipe 204 through another section of the piping system. The exhaust pipe 204 is responsible for discharging the gas generated during the purification process into the external environment to ensure the smooth progress of the entire process. The top right side of the catalytic burner 203 is connected to a connecting pipe 205, and the middle part of the connecting pipe 205 is fixedly connected to a heater 206. The left end of the connecting pipe 205 is connected to an outlet pipe 207, and the bottom end of the outlet pipe 207 is connected to a cylindrical tube 208, the right top of the catalytic burner 203 is connected to it through a connecting pipe 205. A heater 206 is fixedly installed in the middle of the connecting pipe 205 to ensure the temperature conditions required during the combustion process. The left end of the connecting pipe 205 is connected to the outlet pipe 207, and the bottom end of the outlet pipe 207 is connected to the cylindrical pipe 208 to guide the generated gas to the catalytic burner 203 for further processing. The bottom end of the cylindrical pipe 208 is connected to the conical pipe 209, and the bottom end of the conical pipe 209 is fixedly connected to the waste dust box 210. The top of the left end of the cylindrical pipe 208 is connected to the right end of the connecting pipe 26, and the top of the bottom plate 1 The left side of the bottom plate 1 is fixedly connected to the solar panel 12, and the left side of the front end of the waste dust box 210 is rotatably connected to a rotating column 24. The bottom of the cylindrical tube 208 is connected to a conical tube 209, and the bottom of this conical tube 209 is fixedly connected to a waste dust collection box 210. The top left part of the cylindrical tube 208 is connected to the right port of the connecting pipe 26 to ensure smooth gas transmission. A solar panel 12 is fixedly installed on the top left side of the bottom plate 1 to provide the necessary power support. The left side of the front end of the waste dust box 210 is rotatably connected through a rotating column 24, so that the waste dust box can be easily opened and cleaned when needed.

[0035] Specifically, the support platform 201 not only provides stable support, but also carries other important components. A high-efficiency catalytic burner 203 is fixedly connected to the top of the support platform 201. The burner is responsible for converting harmful gases into harmless substances. In order to ensure the normal operation of the burner, the left side of its bottom is connected to the water outlet pipe 202 for discharging water produced after combustion. The right side of the top of the catalytic burner 203 is connected to the exhaust pipe 204. The exhaust pipe 204 is responsible for discharging the burned gas to the outside to ensure air quality. The function of the heater 206 is to preheat the gas entering the burner to improve combustion efficiency. The function of the waste dust box 210 is to collect the dust removed by pretreatment to keep the purification mechanism 2 clean and efficient.

[0036] Please see the attached Figure 1 , Attachment Figure 4 and attached Figure 5 , a box door 7 is fixedly connected to the right side of the rotating column 24, and two screws 27 are threadedly connected to the right side of the front end of the box door 7. A control panel 10 is fixedly connected to the front end of the support platform 201, and an observation window 11 is fixedly connected to the front end of the catalytic burner 203. On the right side of the rotating column 24 of the device, a box door 7 is fixedly connected, and two screws 27 are fixed to it on the right side of the front end of the box door 7 by threaded connection. At the front end of the support platform 201, the control panel 10 is fixedly connected for easy operation and monitoring, and at the front end of the catalytic burner 203, the observation window 11 is also fixedly connected, so that The user can intuitively observe the working status of the burner. The left and right ends of the rotating column 25 are rotatably connected to handles 26. The outer wall of the handle 26 is fixedly connected to an anti-slip sleeve 28. The front end of the box door 7 is fixedly connected to two fixed columns 29. The adjacent fixed columns 29 are rotatably connected to the rotating column 25. The two ends of the rotating column 25 are equipped with handles 26 to enable it to achieve a smooth rotation function. The anti-slip sleeve 28 is tightly fixed on the outer wall of the handle 26, which not only enhances the firmness of the grip, but also further improves the safety of the overall operation. The two fixed columns 29 fixedly connected to the front end of the box door 7 provide a support point for the rotation of the rotating column 25.

[0037] Specifically, the right side of the front end of the box door 7 is equipped with two screws 27 through a threaded connection to ensure its stability. At the same time, the front end of the support platform 201 is connected to the control panel 10 through a fixed connection. The control panel 10 is used to operate and monitor the equipment. On the other side of the device, the front end of the catalytic burner 203 is equipped with an observation window 11 through a fixed connection, which is convenient for observing the working status of the burner. The left and right ends of the rotating column 25 are equipped with handles 26 through a rotating connection, which is convenient for users to open and clean the dust.

[0038] Working principle: The small gear 21 and the large gear 22 are driven by the motor 4 to rotate. The rotation of the small gear 21 will mesh with the bottom end of the short arc plate 19 to rotate, thereby driving the short plate 18 to rotate, and correspondingly driving the locking block 2 16 to rotate. The rotation of the large gear 22 will also mesh with the top end of the long arc plate 20 to rotate, thereby driving the long plate 17 to rotate, and also driving the locking block 1 15 to rotate. Since the long plate 17 and the short plate 18 are both fixed at the large gear 22, the locking block 1 15 and the locking block 2 16 will be locked together with the rotation to fix the interface between the suction pipe 14 and the connecting pipe 2 6 or keep away from it when disassembling. The fixed interface achieves a fixed effect, ensuring that the exhaust gas will not leak during the transmission process, improving the exhaust gas collection efficiency, ensuring that the generated exhaust gas can be collected and treated in a timely and effective manner, and reducing the possibility of fire and explosion for flammable and explosive exhaust gases, protecting the ecological environment and human health;

[0039] When the gas enters the cylindrical tube 208 from the connecting pipe 2 6 at a certain speed, a rotating airflow is formed in the cylindrical tube 208 and the tapered tube 209. Due to the action of centrifugal force, the dust will be thrown onto the inner wall and will fall along the tapered tube 209 under the action of gravity, and finally fall into the waste dust box 210. The preliminarily treated organic waste gas is then discharged to the connecting pipe 1 205 along the outlet pipe 207, undergoes high-temperature thermal contact at the heater 206, and then enters the catalytic burner 203. Under the action of the catalyst, the oxidized carbon dioxide that meets the emission standard is discharged from the exhaust pipe 204, and the water is discharged from the water outlet pipe 202, thereby achieving the purpose of purification. The preliminary dust removal treatment can reduce the dust content in the volatile waste gas, protect the waste gas treatment equipment, and at the same time reduce the damage of the dust waste gas to the operators, enhance the process effect of the subsequent catalytic burner 203, make it better treated, and be beneficial to environmental protection.

[0040] 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 volatile organic waste gas treatment device, comprising a bottom plate (1), characterized in that: The left side of the top of the bottom plate (1) is fixedly connected to a support frame (3), the top of the support frame (3) is fixedly connected to a motor (4), the left side of the top of the bottom plate (1) is fixedly connected to a support plate (5), the output end of the motor (4) passes through the support plate (5) and is rotatably connected to a large gear (22), the bottom end of the large gear (22) is meshedly connected to a long arc plate (20), the rear side of the long arc plate (20) is fixedly connected to a long plate (17), the top of the long plate (17) is fixedly connected to a locking block (15), the right end outer wall of the large gear (22) is fixedly connected to a small gear (21), the top of the small gear (21) is meshedly connected to a short arc plate (19), The front side of the short arc-shaped plate (19) is fixedly connected to a short plate (18), and the middle part of the short plate (18) is rotatably connected to a column (23). The left end of the column (23) passes through the long plate (17) and is fixedly connected to the right side of the support plate (5). The top of the short plate (18) is fixedly connected to a second snap-fit block (16). An air intake pipe (14) is snap-fitted between the adjacent snap-fit block (16) and the first snap-fit block (15). The outer wall of the air intake pipe (14) is fixedly connected to the top of the support plate (5). A fan (13) is installed inside the air intake pipe (14). A purification mechanism (2) is provided at the top of the bottom plate (1). The purification mechanism (2) is used to treat exhaust gas.

2. The volatile organic waste gas treatment device according to claim 1, characterized in that: The purification mechanism (2) includes a support platform (201), the bottom of the support platform (201) is fixedly connected to the right side of the top of the bottom plate (1), the top of the support platform (201) is fixedly connected to a catalytic burner (203), the left side of the bottom of the catalytic burner (203) is connected to a water outlet pipe (202), the right side of the top of the catalytic burner (203) is connected to an exhaust pipe (204), and the top of the right side of the catalytic burner (203) is connected to a connecting pipe (201). 5), the middle part of the connecting pipe 1 (205) is fixedly connected to a heater (206), the left end of the connecting pipe 1 (205) is connected to an air outlet pipe (207), the bottom end of the air outlet pipe (207) is connected to a cylindrical pipe (208), the bottom end of the cylindrical pipe (208) is connected to a conical pipe (209), the bottom end of the conical pipe (209) is fixedly connected to a waste dust box (210), and the top of the left end of the cylindrical pipe (208) is connected to the right end of the connecting pipe 2 (6).

3. The volatile organic waste gas treatment device according to claim 1, characterized in that: A water storage tank (8) is fixedly connected to the top of the bottom plate (1), and a drainage pipe (9) is connected to the front end of the water storage tank (8).

4. The volatile organic waste gas treatment device according to claim 2, characterized in that: A control panel (10) is fixedly connected to the front end of the support platform (201), and an observation window (11) is fixedly connected to the front end of the catalytic burner (203).

5. The volatile organic waste gas treatment device according to claim 2, characterized in that: The left side of the top of the bottom plate (1) is fixedly connected to a battery panel (12), and the left side of the front end of the waste dust box (210) is rotatably connected to a rotating column (24).

6. The volatile organic waste gas treatment device according to claim 5, characterized in that: The right side of the rotating column (24) is fixedly connected to the box door (7), and the right side of the front end of the box door (7) is threadedly connected to two screws (27).

7. The volatile organic waste gas treatment device according to claim 6, characterized in that: The front end of the box door (7) is fixedly connected to two fixed columns (29), and a second rotating column (25) is rotatably connected between adjacent fixed columns (29).

8. The volatile organic waste gas treatment device according to claim 7, characterized in that: The left and right ends of the second rotating column (25) are rotatably connected to handles (26), and the outer wall of the handle (26) is fixedly connected to an anti-slip sleeve (28).

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