A wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas

Abstract

The present application relates to waste gas treatment technical field, disclose a kind of wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas, including reaction tube, and the lower end of reaction tube is connected with inlet pipe and liquid discharge pipe, and reaction tube is connected with reagent pipe and is penetrated, and the one end of reagent pipe is connected with spraying equipment, and the outside of spraying equipment is connected with knob for controlling spraying amount, and spraying equipment is arranged in the central position in reaction tube, and spraying equipment below is provided with lifting frame, and the outside of lifting frame is connected with sealing strip, and lifting frame is connected with catalytic screen frame on, and catalytic screen frame is filled with catalytic packing, and lifting frame is slidingly connected in reaction tube, and the upper end of lifting frame is connected with U-shaped frame.The present application effectively solves the problem of poor adaptability of fixed reaction area, and improves the reaction contact area to ensure the degradation effect at high air volume, reduces the invalid consumption of reagent at low air volume, and greatly improves the adaptability and reaction efficiency of the device for different waste gas conditions.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas. Background Technology

[0002] Currently, wet chemical catalytic oxidation devices for treating VOCs in the industrial sector mostly use vertical reaction tubes as the core. They achieve the degradation of organic pollutants by spraying catalytic agents in countercurrent contact with the waste gas, combined with catalytic packing materials. They are equipped with waste liquid collection and agent circulation structures, making them commonly used equipment for treating medium and low concentration VOCs waste gas.

[0003] The catalytic reaction area of ​​existing wet chemical catalytic oxidation devices is mostly fixed and cannot be adaptively adjusted according to fluctuations in exhaust gas volume. This easily leads to problems such as insufficient reaction at high volumes and waste of reagents at low volumes. In addition, the spray volume adjustment is mostly manually controlled, resulting in low matching with the exhaust gas volume. Furthermore, some devices have poor isolation between the gas-liquid contact area and the waste liquid collection area, which can easily lead to waste liquid backflow and exhaust gas interfering with waste liquid transportation. Overall, the devices lack intelligence and adaptability, resulting in low operating efficiency and reagent utilization.

[0004] Based on this, a wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas includes a reaction tube, with an inlet pipe and a drain pipe connected to the lower end of the reaction tube. A reagent tube is connected through the reaction tube, and a spray device is connected to one end of the reagent tube. A knob for controlling the spray volume is connected to the outside of the spray device. The spray device is located at the center of the reaction tube. A lifting frame is provided below the spray device, and a sealing strip is connected to the outside of the lifting frame. A catalytic sieve is connected to the lifting frame, and the catalytic sieve is filled with catalytic packing material. The lifting frame is slidably connected inside the reaction tube. A U-shaped frame is connected to the upper end of the lifting frame, and the U-shaped frame is engaged with the outside of the knob. The U-shaped frame has a toothed groove that meshes with the knob. An adjustment mechanism for vertically raising and lowering the lifting frame is provided below the lifting frame.

[0008] Preferably, the upper end of the air intake pipe is connected to a flow equalization plate, and the flow equalization plate has small holes for the exhaust gas to pass through.

[0009] Preferably, a liquid collecting plate is provided on the outside of the air inlet pipe, and the liquid collecting plate is fixedly connected to the inner wall of the reaction pipe. The liquid collecting plate is a cone-shaped arrangement with a central opening surrounding the outside of the air inlet pipe.

[0010] Preferably, the lower end of the spraying device is connected to a nozzle, and the spraying device is equipped with a circulating pump that works in conjunction with the agent pipe to control the agent supply.

[0011] Preferably, a slide rail is fixedly connected to the inner wall of the reaction tube, and a guide block is slidably connected to the slide rail. The guide block is fixedly connected to both sides of the lifting frame.

[0012] Preferably, the adjustment mechanism includes a deflection plate, which is rotatably connected to the reaction tube via a deflection shaft. The deflection shaft is fixedly connected to the reaction tube. An abutment strip is connected to one end of the deflection plate near the deflection shaft. A central column is vertically fixedly connected to the reaction tube via a fixing frame. A force-receiving plate is slidably sleeved on the central column. The lower end of the abutment strip abuts against the upper surface of the force-receiving plate.

[0013] Preferably, the deflection plate is rotatably connected to a support wheel at the end away from the deflection axis, and the outer side of the support wheel abuts against the lower end of the lifting frame.

[0014] Preferably, both the abutment strip and the central column are provided with sliding grooves, and a sliding rod is slidably connected to the sliding groove.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. This application adopts a deflection linkage lifting structure driven by exhaust gas, which realizes the mechanical self-adaptive adjustment of the exposed area of ​​the catalytic screen frame with the exhaust gas flow rate. This effectively solves the problem of poor adaptability of the fixed reaction area. When the air volume is high, the reaction contact area is increased to ensure the degradation effect. When the air volume is low, the ineffective consumption of reagents is reduced, which greatly improves the adaptability of the device to different exhaust gas conditions and the reaction efficiency.

[0017] 2. This application adopts a toothed knob structure with lifting frame linkage to realize synchronous mechanical adjustment of spray volume and exhaust gas volume. At the same time, with the gas-liquid isolation structure of conical liquid collection plate, it not only solves the problem of low matching degree between manual adjustment of spray volume and exhaust gas volume, but also avoids waste liquid backflow and exhaust gas interference with waste liquid transportation, thereby improving the utilization rate of reagents and the stability of waste liquid collection. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a processing apparatus provided according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of the structure of the upper end of the reaction tube provided according to an embodiment of the present invention is shown;

[0020] Figure 3A schematic diagram of the structure of the liquid collection plate connection provided according to an embodiment of the present invention is shown;

[0021] Figure 4 A schematic diagram of the structure of the force-bearing disk connection provided according to an embodiment of the present invention is shown;

[0022] Figure 5 A schematic diagram of the structure of the lifting frame connection provided according to an embodiment of the present invention is shown;

[0023] Figure 6 A schematic diagram of the structure of the abutment strip connection provided according to an embodiment of the present invention is shown;

[0024] Figure 7 A schematic diagram of the tooth groove opening provided according to an embodiment of the present invention is shown;

[0025] Figure 8 A schematic diagram of the structure of the U-shaped frame connection provided according to an embodiment of the present invention is shown;

[0026] Figure 9 A schematic diagram of the structure of the catalytic packing placement provided according to an embodiment of the present invention is shown.

[0027] Legend:

[0028] 1. Reaction tube; 2. Inlet pipe; 3. Drain pipe; 4. Reagent tube; 5. Flow equalization plate; 6. Collection plate; 7. Fixing frame; 8. Force plate; 9. Deflection shaft; 10. Lifting frame; 11. Catalytic sieve frame; 12. Deflection plate; 13. Support wheel; 14. Abutment strip; 15. Central column; 16. Slide rod; 17. Slide rail; 18. Sealing strip; 19. U-shaped frame; 20. Spraying equipment; 21. Guide block; 22. Knob; 23. Gear; 24. Catalytic packing. Detailed Implementation

[0029] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Please see Figures 1-9 The present invention provides a technical solution:

[0031] A wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas includes a reaction tube 1, which is a vertically arranged square pipe serving as the main reaction chamber for the wet chemical catalytic oxidation of VOCs organic waste gas. It provides installation and operating space for various functional components and is adaptable to different airflow and concentration waste gas conditions. An inlet pipe 2 and a drain pipe 3 are connected to the lower end of the reaction tube 1. The inlet pipe 2 is the only channel for waste gas to enter the reaction tube 1, and the drain pipe 3 is used to discharge the waste liquid collected after the reaction, realizing waste liquid recycling and reuse. A reagent tube 4 is connected through the reaction tube 1. One end of the reagent tube 4 is connected to a spray device 20, which atomizes and sprays the catalytic reagent into the reaction chamber, forming a countercurrent contact with the rising exhaust gas to provide a reaction medium for the catalytic oxidation of VOCs. A knob 22, a toothed adjustment component, is connected to the outside of the spray device 20 to control the spray volume. Rotating the knob changes the opening of the reagent supply channel inside the spray device 20, thus precisely adjusting the spray volume. The spray device 20 is positioned at the center inside the reaction tube 1, and a lifting frame 10 is located below it. A sealing strip 18 is connected to the outside of the lifting frame 10. The sealing strip 18 is made of corrosion-resistant rubber and fits tightly against the inner wall of the reaction tube 1 to ensure the sealing of the reaction chamber during the lifting process of the lifting frame 10, preventing unreacted waste gas from leaking out of the gap. A catalytic sieve frame 11 is connected to the lifting frame 10. The catalytic sieve frame 11 is filled with catalytic packing material 24. The catalytic sieve frame 11 has a hollow frame structure and is filled with catalytic packing material 24 to provide a carrier for the contact reaction of VOCs and catalytic reagents, thereby improving the reaction efficiency. The catalytic packing material 24 is a supported metal oxide or activated carbon-based material, suitable for wet process. The catalytic oxidation reaction can efficiently degrade volatile organic compounds such as benzene and toluene. The lifting frame 10 is slidably connected inside the reaction tube 1. A U-shaped frame 19 is connected to the upper end of the lifting frame 10. When the U-shaped frame 19 rises and falls synchronously with the lifting frame 10, the tooth groove 23 engages with the toothed pattern of the knob 22, driving the knob 22 to rotate, thereby realizing the mechanical linkage adjustment of the spray volume and the exhaust gas volume. The U-shaped frame 19 is snapped onto the outside of the knob 22. The U-shaped frame 19 has a tooth groove 23 that engages with the knob 22. An adjustment mechanism is provided below the lifting frame 10 to drive the lifting frame 10 to rise and fall vertically.

[0032] Specifically, such as Figure 3 As shown, the upper end of the air inlet pipe 2 is connected to a flow equalization plate 5. The flow equalization plate 5 has small holes for the exhaust gas to pass through. The small holes on the flow equalization plate 5 are evenly distributed, which can make the exhaust gas entering the reaction pipe 1 evenly diffuse to the entire cross section, avoid local airflow being too fast or too slow, and ensure the uniformity of gas-liquid contact. At the same time, the hydrophobic coating on the surface of the flow equalization plate 5 can make the dripping reagent form a thin liquid film, which can prevent the waste liquid from flowing back into the air inlet pipe 2 and allow the exhaust gas to pass through the liquid film for preliminary reaction.

[0033] Specifically, such as Figure 3As shown, a liquid collecting plate 6 is provided on the outside of the air inlet pipe 2. The outside of the liquid collecting plate 6 is fixedly connected to the inner wall of the reaction pipe 1. The liquid collecting plate 6 is a cone-shaped ring with a central hole, which is arranged around the outside of the air inlet pipe 2. The liquid collecting plate 6 is inclined cone-shaped, and the inner diameter is larger than the diameter of the air inlet pipe 2. Together with the outer wall of the air inlet pipe 2 and the inner wall of the reaction pipe 1, it forms a semi-closed liquid collecting tank, which can efficiently collect the dripping waste liquid, avoid direct interference between the waste liquid and the rising exhaust gas, and ensure that the waste liquid is discharged smoothly through the drain pipe 3.

[0034] Specifically, such as Figure 8 As shown, the spraying device 20 is connected to a nozzle at the lower end. The spraying device 20 is equipped with a circulating pump that works with the agent pipe 4 to control the agent supply. The circulating pump can transport the recovered waste liquid to the spraying device 20 through the agent pipe 4 to realize the recycling of the agent and reduce operating costs. The nozzle adopts an atomization design, which can increase the contact area between the agent and the waste gas and improve the catalytic oxidation efficiency.

[0035] Specifically, such as Figure 7 As shown, a slide rail 17 is fixedly connected to the inner wall of the reaction tube 1, and a guide block 21 is slidably connected to the slide rail 17. The guide block 21 is fixedly connected to both sides of the lifting frame 10. The slide rail 17 and the guide block 21 cooperate to restrict the lifting frame 10 to slide only in the vertical direction, avoid horizontal deviation, and ensure the stability and sealing of the lifting process.

[0036] Specifically, such as Figure 6 and Figure 7 As shown, the adjustment mechanism includes a deflection plate 12, which is rotatably connected to the reaction tube 1 via a deflection shaft 9. The deflection shaft 9 is fixedly connected to the reaction tube 1. An abutment strip 14 is connected to one end of the deflection plate 12 near the deflection shaft 9. A central column 15 is vertically fixedly connected to the reaction tube 1 via a fixing frame 7. A force-receiving plate 8 is slidably mounted on the central column 15. The lower end of the abutment strip 14 abuts against the upper surface of the force-receiving plate 8. The force-receiving plate 8 is a horizontal disc that can slide vertically on the central column 15. The exhaust gas blows the force-receiving plate 8 from bottom to top, which in turn pushes the abutment strip 14 and drives the deflection plate 12 to deflect around the deflection shaft 9, thereby realizing the mechanical triggering of the height of the lifting frame 10 by the exhaust gas volume.

[0037] Specifically, such as Figure 6 As shown, a support wheel 13 is rotatably connected to the end of the deflection plate 12 away from the deflection shaft 9. The outer side of the support wheel 13 abuts against the lower end of the lifting frame 10. The support wheel 13 can roll in contact with the lower surface of the lifting frame 10, reducing friction and wear when the deflection plate 12 deflects, and ensuring the smooth lifting of the lifting frame 10.

[0038] Specifically, such as Figure 6As shown, both the abutment strip 14 and the central column 15 are provided with sliding grooves, and a sliding rod 16 is slidably connected to the sliding groove. The sliding rod 16 can slide in the sliding groove, limiting the deflection angle of the abutment strip 14, avoiding excessive deflection that could cause structural jamming, and ensuring that the force-bearing plate 8 is always in a horizontal state.

[0039] In summary, the wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas provided in this embodiment addresses industry pain points such as large fluctuations in VOCs organic waste gas volume, insufficient gas-liquid contact, and reagent waste. It achieves efficient and adaptive operation of wet chemical catalytic oxidation through a fully mechanical linkage logic involving the waste gas-driven force-bearing plate 8, the deflection plate 12 linked to the lifting frame 10, synchronous adjustment of the spray volume, self-adaptive exposure of the catalytic screen frame 11, and waste liquid recycling. The specific process is as follows:

[0040] Exhaust gas intake and equalization distribution:

[0041] Under the action of the induced draft fan, VOCs organic waste gas enters the bottom of the reaction tube 1 through the inlet pipe 2, and first contacts the flow equalization plate 5 at the upper end of the inlet pipe 2. The evenly distributed small holes on the flow equalization plate 5 evenly diffuse the concentrated waste gas to the entire cross-section of the reaction tube 1, avoiding local airflow that is too fast or too slow, and ensuring the uniformity of subsequent gas-liquid contact.

[0042] Meanwhile, the hydrophobic coating on the surface of the flow equalization plate 5 causes the dripping catalyst to form a thin liquid film on the plate: on the one hand, this liquid film can prevent waste liquid from flowing back into the air inlet pipe 2; on the other hand, the rising waste gas must first pass through this liquid film to achieve preliminary gas-liquid contact and pre-reaction, laying the foundation for subsequent deep catalytic oxidation.

[0043] Exhaust gas drives the force plate 8 and deflection trigger:

[0044] After the flow is equalized, the exhaust gas continues to flow from bottom to top, impacting the force-receiving disk 8 on the central column 15. As the volume of exhaust gas increases, the dynamic pressure of the airflow on the force-receiving disk 8 gradually increases. When the dynamic pressure exceeds a preset threshold, it pushes the force-receiving disk 8 to slide vertically upward along the central column 15.

[0045] When the force-bearing plate 8 rises, its upper end face abuts against and pushes the abutment strip 14, causing the abutment strip 14 to deflect around the deflection axis 9. At this time, the slide rod 16 slides synchronously in the groove between the abutment strip 14 and the central column 15, limiting the deflection angle of the abutment strip 14. This not only avoids excessive deflection that could cause structural jamming, but also ensures that the force-bearing plate 8 remains in a horizontal state, preventing tilting and jamming.

[0046] The deflection plate 12 and the lifting frame 10 are self-adaptive with the catalytic sieve frame 11.

[0047] The deflection of the abutment bar 14 causes the deflection plate 12 to rotate synchronously around the deflection shaft 9. The end of the deflection plate 12 away from the deflection shaft 9 rolls against the lower end of the lifting frame 10 via the support wheel 13. The rolling contact design of the support wheel 13 significantly reduces friction and wear between the deflection plate 12 and the lifting frame 10, ensuring smoothness of the lifting process.

[0048] The rotation of the deflection plate 12 transmits force to the lifting frame 10 through the support wheel 13, pushing the lifting frame 10 to slide upward along the slide rail 17 on the inner wall of the reaction tube 1. The sealing strip 18 on the outside of the lifting frame 10 always fits tightly against the inner wall of the reaction tube 1, ensuring the sealing of the reaction chamber during the lifting process and preventing unreacted waste gas from leaking out of the gap.

[0049] As the height of the lifting frame 10 increases, the space inside the catalytic sieve frame 11 that is blocked by the deflection plate 12 gradually decreases:

[0050] When the exhaust gas volume is large, the lifting frame 10 rises to a high height and the catalytic screen frame 11 is exposed to a large area, which can provide more catalytic reaction carriers and improve reaction efficiency.

[0051] When the air volume is low, the lifting frame 10 is in a low position, and the catalytic screen frame 11 has a small exposed area, avoiding unnecessary reagent consumption.

[0052] This mechanical linkage of "exhaust gas volume - force-bearing plate 8 - lifting frame 10 - catalytic screen frame 11 exposure" enables the self-adaptive adjustment of the catalytic reaction area and exhaust gas conditions.

[0053] Simultaneous adjustment of spray volume and gas-liquid catalytic reaction:

[0054] As the lifting frame 10 rises, the U-shaped frame 19 connected to its upper end moves upward synchronously. The toothed groove 23 on the U-shaped frame 19 engages with the toothed groove of the knob 22 on the outside of the spray equipment 20, driving the knob 22 to rotate.

[0055] Rotating the knob 22 changes the opening of the agent supply channel inside the spraying equipment 20: the higher the lifting frame 10 rises, the larger the opening of the knob 22, and the spraying volume of the spraying equipment 20 also increases accordingly. This achieves precise matching of the spraying volume with the exhaust gas volume, avoiding the problems of insufficient agent when the air volume is high and waste of agent when the air volume is low.

[0056] The catalyst enters the spraying device 20 through the reagent pipe 4 and is evenly sprayed onto the catalytic screen 11 through the atomizing nozzle at the lower end. The reagent forms a liquid film on the surface of the catalytic packing 24 of the catalytic screen 11, which comes into full contact with the exhaust gas passing through the catalytic screen 11. Under the action of the catalyst, a highly efficient chemical catalytic oxidation reaction occurs, degrading VOCs organic pollutants into harmless carbon dioxide and water.

[0057] Waste liquid collection and recycling:

[0058] After the reaction, the reagent drips from the catalytic sieve 11 onto the flow equalization plate 5 below under the influence of gravity, where it comes into contact with the rising waste gas again for a secondary reaction, thus improving the reagent utilization rate. Subsequently, the waste liquid slides down the edge of the flow equalization plate 5 and enters the semi-enclosed collection tank formed by the collection plate 6, the outer wall of the inlet pipe 2, and the inner wall of the reaction pipe 1.

[0059] The inclined conical design of the collection plate 6 guides the waste liquid towards the center, ultimately discharging it from the reaction tube 1 through the drain pipe 3. After filtration and regeneration, the discharged waste liquid can be pumped back to the reagent tube 4, achieving reagent recycling and significantly reducing operating costs. Simultaneously, the semi-enclosed structure of the collection plate 6 effectively isolates rising exhaust gas from falling waste liquid, preventing exhaust gas from interfering with the collection and transportation of waste liquid.

[0060] Device reset and operating condition switching:

[0061] When the exhaust gas volume decreases, the dynamic pressure of the airflow on the force-bearing plate 8 decreases, and the force-bearing plate 8 descends along the central column 15 under the action of gravity, causing the contact strip 14 and the deflection plate 12 to deflect in the opposite direction. The deflection plate 12 pulls the lifting frame 10 down along the slide rail 17 through the support wheel 13, and the exposed area of ​​the catalytic screen frame 11 decreases accordingly.

[0062] Simultaneously, the U-shaped frame 19 descends with the lifting frame 10, driving the knob 22 to rotate in the opposite direction, reducing the spray volume of the spraying equipment 20, thus automatically adapting the device to low airflow conditions. The entire reset process requires no manual intervention, relying entirely on the gravity of the mechanical structure and the airflow pressure, ensuring continuous and stable operation of the device under different operating conditions.

[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas, comprising a reaction tube (1), characterized in that, The lower end of the reaction tube (1) is connected to an air inlet pipe (2) and a liquid outlet pipe (3). A reagent tube (4) is connected through the reaction tube (1). One end of the reagent tube (4) is connected to a spraying device (20). A knob (22) for controlling the spray volume is connected to the outside of the spraying device (20). The spraying device (20) is located in the center of the reaction tube (1). A lifting frame (10) is provided below the spraying device (20). A sealing strip (18) is connected to the outside of the lifting frame (10). (10) is connected to a catalytic sieve frame (11), which is filled with catalytic packing material (24). The lifting frame (10) is slidably connected to the reaction tube (1). The upper end of the lifting frame (10) is connected to a U-shaped frame (19), which is snapped onto the outside of the knob (22). The U-shaped frame (19) has a toothed groove (23) that meshes with the knob (22). An adjustment mechanism is provided below the lifting frame (10) to drive the lifting frame (10) to move vertically.

2. The wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas according to claim 1, characterized in that, The upper end of the air inlet pipe (2) is connected to a flow equalization plate (5), and the flow equalization plate (5) has small holes for the exhaust gas to pass through.

3. The wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas according to claim 2, characterized in that, A liquid collecting plate (6) is provided on the outside of the air inlet pipe (2). The liquid collecting plate (6) is fixedly connected to the inner wall of the reaction pipe (1). The liquid collecting plate (6) is a cone-shaped enclosure with a central opening on the outside of the air inlet pipe (2).

4. The wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas according to claim 1, characterized in that, The spraying device (20) is connected to a nozzle at the lower end, and a circulating pump with a matching agent pipe (4) is installed inside the spraying device (20) to control the agent supply.

5. The wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas according to claim 1, characterized in that, A slide rail (17) is fixedly connected to the inner wall of the reaction tube (1), and a guide block (21) is slidably connected to the slide rail (17). The guide block (21) is fixedly connected to both sides of the lifting frame (10).

6. The wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas according to claim 1, characterized in that, The adjustment mechanism includes a deflection plate (12), which is rotatably connected to the reaction tube (1) via a deflection shaft (9). The deflection shaft (9) is fixedly connected to the reaction tube (1). An abutment strip (14) is connected to one end of the deflection plate (12) near the deflection shaft (9). A central column (15) is vertically fixedly connected to the reaction tube (1) via a fixing frame (7). A force-receiving plate (8) is slidably sleeved on the central column (15). The lower end of the abutment strip (14) abuts against the upper surface of the force-receiving plate (8).

7. The wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas according to claim 6, characterized in that, The deflection plate (12) is rotatably connected to a support wheel (13) at the end away from the deflection shaft (9), and the outer side of the support wheel (13) abuts against the lower end of the lifting frame (10).

8. A wet chemical catalytic oxidation treatment device for treating VOCs organic waste gas according to claim 6, characterized in that, Both the abutment strip (14) and the central column (15) are provided with sliding grooves, and a sliding rod (16) is slidably connected to the sliding groove.

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