A VOCs waste gas treatment device

Abstract

The present invention relates to the technical field of waste gas treatment, and specifically discloses a VOCs waste gas treatment device, including a tank body, wherein three brackets are installed on the arc surface of the tank body, and two concave holes are provided on the arc surface of the tank body, and the inner walls of the two concave holes are hinged with tank doors, and also include: two first motors, wherein the two first motors are respectively fixedly connected to the two ends of the inner wall of the tank body, and the output end of the first motor is fixedly connected with a screw, and the arc surface of the screw is threadedly connected with a driving block, and the bottom surface of the driving block is fixedly connected with a fixed rod, and the end of the fixed rod away from the driving block is fixedly connected with a diffusion cover. The present invention sets a first gear, a second gear, and a ball, and by means of the mutual transmission of the first gear and the second gear, the angle of the ball can be rotated, so that the adsorption saturated activated carbon on one side is regenerated, and the normal activated carbon on the other side continues to adsorb and treat the waste gas, thereby realizing the function of activated carbon circulation purification and use.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and specifically relates to a VOCs waste gas treatment device. Background Art

[0002] VOCs, or volatile organic compounds, are a class of organic compounds that are volatile at room temperature. They are widely present in the natural environment and man-made products. Common VOCs include formaldehyde, benzene, toluene, xylene, ethanol and acetaldehyde. At present, there are various methods and processes for treating organic waste gas. Among them, adsorption method is a widely used method for treating organic waste gas. Its principle is to use substances with strong adsorption capacity, such as activated carbon, to adsorb organic pollutants in waste gas, separate air from organic gas, and thus treat organic waste gas.

[0003] In a Chinese patent with publication number CN115400543B, a VOCs waste gas treatment device is mentioned. Its specification discloses that the adsorption method uses zeolite molecular sieve or activated carbon for adsorption. The zeolite molecular sieve or activated carbon will reach a saturated state after long-term adsorption, resulting in a decrease in its adsorption effect. The existing treatment method is to remove the zeolite molecular sieve or activated carbon from the equipment and then clean it. This method is inefficient. When replacing the zeolite molecular sieve or activated carbon, the organic waste gas treatment equipment needs to stop running, affecting the efficiency. Second, the zeolite molecular sieve or activated carbon is taken out and exposed to the environment, and the adsorbed organic pollutants are easy to detach and pollute the environment again.

[0004] However, in the above application, the adsorption capacity of the activated carbon will decrease with repeated regeneration. In the above application, when the activated carbon needs to be replaced, the operation is inconvenient and it is difficult to quickly replace the activated carbon. Summary of the invention

[0005] The purpose of the present invention is to provide a VOCs waste gas treatment device to solve the problem in the prior art that it is difficult to quickly replace activated carbon in existing waste gas treatment devices.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A VOCs waste gas treatment device comprises a tank body, wherein three brackets are installed on the arc surface of the tank body, two concave holes are opened on the arc surface of the tank body, and the inner walls of the two concave holes are hinged with tank doors, and further comprises:

[0008] Two first motors, the two first motors are respectively fixedly connected to the two ends of the inner wall of the tank body, the output end of the first motor is fixedly connected with a screw, the arc surface of the screw is threadedly connected with a driving block, the bottom surface of the driving block is fixedly connected with a fixing rod, the end of the fixing rod away from the driving block is fixedly connected with a diffusion cover, one end of the diffusion cover is connected with a fixing pipe, the end of the fixing pipe away from the diffusion cover is connected with a hose, and the end of the hose away from the diffusion cover passes through the tank body;

[0009] A steering mechanism is used to redirect the activated carbon after it is fully adsorbed, clean it, and regenerate it, and continue to treat the exhaust gas through the activated carbon on the other side. The steering mechanism includes a sphere arranged inside the tank body, and the arc surface of the sphere is provided with two placement grooves. The inside of the sphere is fixedly connected with a first air outlet pipe and a second air outlet pipe, and the first air outlet pipe and the second air outlet pipe are respectively connected with the two placement grooves, and the arc surfaces of the first air outlet pipe and the second air outlet pipe are both rotated to penetrate the tank body;

[0010] A guide and grabbing mechanism is used to guide the gas when conveying the gas into the placement groove so as to facilitate rapid diffusion of the gas, and to grab the activated carbon from the placement groove when replacing the activated carbon. The guide and grabbing mechanism includes a square frame fixedly connected to the inside of the diffusion cover, four fixed blocks fixedly connected to the surface of the square frame, a third motor fixedly connected to the surface of the fixed block, an output end of the third motor fixedly connected to a guide frame, and a guide plate slidably connected to the inside of the guide frame.

[0011] Preferably: a second motor is fixedly connected to the surface of one of the brackets, an output end of the second motor is fixedly connected to a second gear, a tooth surface of the second gear is meshed with a first gear, and the first gear is fixedly connected to the arc surface of the first air outlet pipe.

[0012] Preferably, the cross-section of the diffusion cover is trapezoidal, the arc surface of the diffusion cover is fixedly connected to a limiting rod, the arc surface of the limiting rod is slidably connected to a cylinder, and the cylinder is fixedly connected to the inner wall of the tank body.

[0013] Preferably, four first springs are fixedly connected to the inner wall of the placement groove, and one end of the four first springs close to each other is fixedly connected to a pressing plate, and the cross-sectional shape of the pressing plate is an arc shape.

[0014] Preferably: the four pressing plates are fixedly connected to a limiting column on one side away from each other, the limiting column is connected to the inner wall of the anti-sliding groove, and the first spring is sleeved on the arc surface of the limiting column.

[0015] Preferably: the side wall of the guide frame is fixedly connected with an electric push rod, the output end of the electric push rod is fixedly connected with a connecting plate, the connecting plate is fixedly connected to the side wall of the guide plate, and a plurality of guide grooves are provided on both sides of the guide frame and the guide plate.

[0016] Preferably, one end of the diffusion cover away from the fixed tube is fixedly connected with a sealing gasket, and the sealing gasket is a rubber gasket.

[0017] Preferably: the inner wall of the tank body is provided with a vibration mechanism, which is used to vibrate the inside of the sphere when the sphere rotates at an angle so that some granular impurities adsorbed by the activated carbon can fall down, the vibration mechanism includes a plurality of arc frames fixedly connected to the inner wall of the tank body, a plurality of sliders are slidably connected to the surface of the arc frame, a second spring is fixedly connected to the surface of the slider, the end of the second spring away from the slider is fixedly connected to the arc frame, and a plurality of protrusions are fixedly connected to the arc surface of the sphere.

[0018] Preferably, the second spring is located inside the arc frame, the shape of the protrusion is hemispherical, and the cross-sectional shape of the end of the sliding block protruding from the arc frame is triangular.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention sets a first gear, a second gear and a ball. With the help of the mutual transmission of the first gear and the second gear, the angle of the ball can be rotated, so that the adsorption saturated activated carbon on one side can be regenerated, and the normal activated carbon on the other side continues to adsorb the exhaust gas, thereby realizing the function of activated carbon circulation purification and use. Compared with the existing removal and cleaning method, the efficiency is high, and the intake pipe only needs to stop introducing organic exhaust gas for a short time to ensure the gas purification efficiency.

[0021] 2. The present invention provides a guide frame, a guide plate, an electric push rod and a third motor. When gas is introduced into the prevention groove, the gas can be diffused and distributed on the surface of the activated carbon more quickly through the guidance of the guide frame and the guide plate. The start of the electric push rod and the third motor can adjust the length and angle of the guide frame and the guide plate to facilitate better diffusion of the gas. When the activated carbon needs to be replaced, the activated carbon can be grabbed after the angle of the guide plate is adjusted, so that the activated carbon can be taken out from the inside of the tank body more quickly and conveniently.

[0022] 3. The present invention provides an arc frame, a protrusion, a slider and a second spring. With the help of the elastic force of the second spring, when the ball is adjusted and rotated, the protrusion can be used to squeeze the slider, thereby vibrating the ball itself, so that the organic pollutants adsorbed in the activated carbon can be vibrated and loosened, which helps to clean the activated carbon more thoroughly during the regeneration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the left-side cross-sectional structure;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure of the middle sphere;

[0026] Figure 4 For the present invention Figure 1 A partial structural diagram of the internal steering mechanism;

[0027] Figure 5 It is a partial structural schematic diagram of the diffusion cover and the guide grabbing mechanism of the present invention;

[0028] Figure 6 It is a schematic diagram of the planar structure of the guiding and grabbing mechanism of the present invention;

[0029] Figure 7 It is a partial cross-sectional structural schematic diagram of the tank body of the present invention;

[0030] Figure 8 It is a partial structural schematic diagram of the arc frame of the present invention.

[0031] In the figure: 1. tank body; 101. bracket; 102. diffusion cover; 103. first motor; 104. screw; 105. drive block; 106. fixing rod; 107. fixing pipe; 108. hose; 109. tank door; 2. steering mechanism; 201. ball; 202. placement slot; 203. first air outlet pipe; 204. second air outlet pipe; 205. first gear; 206. second gear; 207. second motor; 208. limit Rod; 209, cylinder; 210, first spring; 211, pressure plate; 212, limit column; 3, guide grasping mechanism; 301, square frame; 302, fixing block; 303, third motor; 304, guide frame; 305, guide plate; 306, guide groove; 307, electric push rod; 308, connecting plate; 309, sealing pad; 4, vibration mechanism; 401, arc frame; 402, slider; 403, second spring; 404, bump. DETAILED DESCRIPTION

[0032] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 8 As shown, the present invention provides a VOCs waste gas treatment device, including a tank body 1, three brackets 101 are installed on the arc surface of the tank body 1, two concave holes are opened on the arc surface of the tank body 1, and the inner walls of the two concave holes are hinged with tank doors 109, and the tank door 109 can be stabilized by its own friction, and also includes:

[0034] Two first motors 103, the two first motors 103 are respectively fixedly connected to the two ends of the inner wall of the tank body 1, the output end of the first motor 103 is fixedly connected with a screw 104, the arc surface of the screw 104 is threadedly connected with a driving block 105, the bottom surface of the driving block 105 is fixedly connected with a fixing rod 106, the end of the fixing rod 106 away from the driving block 105 is fixedly connected with a diffusion cover 102, one end of the diffusion cover 102 is connected with a fixing pipe 107, the end of the fixing pipe 107 away from the diffusion cover 102 is connected with a hose 108, and the end of the hose 108 away from the diffusion cover 102 passes through the tank body 1;

[0035] In this embodiment, the hose 108 serves to facilitate the smooth movement of the diffusion cover 102.

[0036] In a further embodiment, referring to Figure 2 , Figure 3 and Figure 4 As shown, the steering mechanism 2 is used to divert, clean and regenerate the activated carbon after the activated carbon on one side is fully adsorbed, and continue to treat the exhaust gas through the activated carbon on the other side. The steering mechanism 2 includes a sphere 201 arranged inside the tank body 1, and the arc surface of the sphere 201 is provided with two placement grooves 202, and the two placement grooves 202 are respectively located on both sides of the sphere 201.

[0037] In this embodiment, cylindrical activated carbon is disposed inside the placement groove 202 , and the height of the activated carbon does not exceed the depth of the placement groove 202 .

[0038] The inside of the sphere 201 is fixedly connected with a first air outlet pipe 203 and a second air outlet pipe 204, which are respectively connected with two placement grooves 202. The arc surfaces of the first air outlet pipe 203 and the second air outlet pipe 204 rotate and pass through the tank body 1. The end of the diffusion cover 102 away from the fixed pipe 107 is fixedly connected with a sealing gasket 309, which is a rubber gasket.

[0039] In this embodiment, the first air outlet pipe 203 and the second air outlet pipe 204 are rotatably connected to the tank body 1 and penetrate the tank body 1. The sealing gasket 309 serves to seal the placement groove 202 when the diffusion cover 102 covers the placement groove 202.

[0040] A second motor 207 is fixedly connected to the surface of one of the brackets 101, and an output end of the second motor 207 is fixedly connected to a second gear 206. The tooth surface of the second gear 206 is meshed with a first gear 205. The first gear 205 is fixedly connected to the arc surface of the first air outlet pipe 203. The first gear 205 is a gear ring, and its inner ring surface is fixedly connected to the first air outlet pipe 203.

[0041] The cross-sectional shape of the diffusion cover 102 is trapezoidal. The arc surface of the diffusion cover 102 is fixedly connected to a limiting rod 208 . The arc surface of the limiting rod 208 is slidably connected to a cylinder 209 . The cylinder 209 is fixedly connected to the inner wall of the tank body 1 .

[0042] In this embodiment, when the diffusion cover 102 moves, it will drive the limiting rod 208 to slide along the cylinder 209, thereby limiting the position of the diffusion cover 102.

[0043] Four first springs 210 are fixedly connected to the inner wall of the placement groove 202, and the ends of the four first springs 210 close to each other are fixedly connected to a pressure plate 211, and the pressure plate 211 is a rubber pad, which serves to increase the friction force. The cross-sectional shape of the pressure plate 211 is an arc shape, and the sides of the four pressure plates 211 away from each other are fixedly connected to a limiting column 212, and the limiting column 212 is connected to the inner wall of the anti-sliding groove 202, and the first spring 210 is sleeved on the arc surface of the limiting column 212.

[0044] In this embodiment, when placing cylindrical activated carbon, the elastic force of the first spring 210 causes the pressing plate 211 to squeeze the activated carbon to stabilize the activated carbon. In this way, there is a certain gap between the activated carbon and the inner wall of the placement groove 202, which also facilitates the subsequent grasping mechanism to clamp the activated carbon.

[0045] In a further embodiment, referring to Figure 2 , Figure 5 and Figure 6 As shown, the guide grabbing mechanism 3 is used to guide the gas when conveying the gas into the placement groove 202 so as to facilitate the rapid diffusion of the gas, and to grab the activated carbon from the placement groove when replacing the activated carbon. The guide grabbing mechanism 3 includes a square frame 301 fixedly connected to the inside of the diffusion cover 102, four fixed blocks 302 are fixedly connected to the surface of the square frame 301, a third motor 303 is fixedly connected to the surface of the fixed block 302, the output end of the third motor 303 is fixedly connected to a guide frame 304, and the inside of the guide frame 304 is slidably connected to a guide plate 305.

[0046] The side wall of the guide frame 304 is fixedly connected with an electric push rod 307, the output end of the electric push rod 307 is fixedly connected with a connecting plate 308, the connecting plate 308 is fixedly connected to the side wall of the guide plate 305, and multiple guide grooves 306 are opened on both sides of the guide frame 304 and the guide plate 305.

[0047] In this embodiment, the gas can be diffused and distributed on the surface of the activated carbon more quickly through the guidance of the guide frame 304 and the guide plate 305. When the activated carbon needs to be replaced, the angle of the guide plate 305 can be adjusted to grab the activated carbon, thereby taking the activated carbon out from the inside of the tank body 1, making replacement faster and more convenient.

[0048] In a further embodiment, referring to Figure 2 , Figure 7 and Figure 8 As shown, a vibration mechanism 4 is provided on the inner wall of the tank body 1, which is used to vibrate the inside of the sphere 201 when the sphere 201 rotates, so that some of the granular impurities adsorbed by the activated carbon can fall down. The vibration mechanism 4 includes a plurality of arc frames 401 fixedly connected to the inner wall of the tank body 1, a plurality of sliders 402 are slidably connected to the surface of the arc frame 401, a second spring 403 is fixedly connected to the surface of the slider 402, and the end of the second spring 403 away from the slider 402 is fixedly connected to the arc frame 401, and a plurality of protrusions 404 are fixedly connected to the arc surface of the sphere 201.

[0049] The second spring 403 is located inside the arc frame 401 , the shape of the protrusion 404 is hemispherical, and the cross-sectional shape of the end of the slider 402 protruding from the arc frame 401 is triangular.

[0050] In this embodiment, the cross-sectional shape of the slider 402 at one end protruding from the arc frame 401 is triangular so that the slider 402 can shrink and slide when squeezed, and the shape of the slider 402 is not a triangular prism. The cross-sectional shape of the part of the slider 402 inside the arc frame 401 is rectangular.

[0051] The working principle of the present invention is as follows: when in use, the exhaust gas is first introduced into the hose 108 on the right side. After the exhaust gas enters the diffusion cover 102 through the fixed pipe 107, it will diffuse under the action of multiple guide frames 304, and can contact with the activated carbon in the placement groove 202 more quickly. The exhaust gas can be adsorbed by the activated carbon, and the treated gas will be discharged from the first outlet pipe 203. When the activated carbon is adsorbed to a saturated state, the exhaust gas is stopped. At this time, the two first motors 103 are started, and the two screws 104 will rotate. With the help of the drive of the thread, the drive The block 105 will slide along the arc surface of the screw rod 104, and the two diffusion covers 102 will move away from each other. When the diffusion covers 102 move to a certain extent, the second motor 207 is started, and the second motor 207 drives the second gear 206 to rotate, and the first gear 205 will be driven to drive the first air outlet pipe 203 to rotate, so that the ball 201 will rotate. After rotating 180 degrees, the positions of the two placement slots 202 will be swapped, and the activated carbon inside the rotated placement slot 202 is unused. At this time, the output end of the first motor 103 The two diffusers 102 are rotated in the opposite direction to move toward each other until they fit the ball 201, and the sealing pad 309 can be used to seal. At this time, the hose 108 on the right continues to transport the exhaust gas to contact the activated carbon, and the hose 108 on the left can pass high-temperature gas to contact the activated carbon that is saturated with adsorption, so as to decompose the impurity exhaust gas adsorbed by the activated carbon into gas, such as carbon dioxide, water vapor, etc., that is, the activated carbon on the left is being regenerated, and the activated carbon on the right is adsorbing the exhaust gas. When the activated carbon on the right is saturated with adsorption again, the activated carbon on the left is The activated carbon can be reused, and the activated carbon can be recycled and purified by rotating the ball 201 again. During the rotation of the ball 201, the protrusion 404 on the ball 201 will squeeze the slider 402 on the arc frame 401. Under the action of the second spring 403, the slider 402 will shrink. Since there are multiple sliders 402, the ball 201 will vibrate when it contacts the slider 402 during the rotation process, so that the organic pollutants adsorbed in the activated carbon can be vibrated and loosened, which helps to make the activated carbon clean more thoroughly during the regeneration of the activated carbon.

[0052] When the activated carbon has been regenerated many times and its adsorption capacity cannot meet the demand, it needs to be replaced. At this time, the electric push rod 307 is started to drive the guide plate 305 to slide in the guide frame 304 to extend the length of the guide plate 305. After reaching a certain length, the third motor 303 is started to adjust the angle of the guide frame 304 and move the four guide plates 305 towards each other until the guide plates 305 contact the activated carbon. The activated carbon can be stabilized by locking the third motor 303. Then the first motor 103 is started to move the two diffusion covers 102 away from each other. In this way, the activated carbon will move out of the placement slot 202. At this time, by opening the tank door 109, the activated carbon can be taken out from here and replaced.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A VOCs waste gas treatment device, comprising a tank body (1), wherein three brackets (101) are installed on the arc surface of the tank body (1), and two concave holes are opened on the arc surface of the tank body (1), and the inner walls of the two concave holes are hinged with tank doors (109), characterized in that: Also includes: Two first motors (103), the two first motors (103) are respectively fixedly connected to two ends of the inner wall of the tank body (1), the output end of the first motor (103) is fixedly connected to a screw rod (104), the arc surface of the screw rod (104) is threadedly connected to a driving block (105), the bottom surface of the driving block (105) is fixedly connected to a fixing rod (106), one end of the fixing rod (106) away from the driving block (105) is fixedly connected to a diffusion cover (102), and one end of the diffusion cover (102) is connected to a fixing pipe (101). 07), one end of the fixed tube (107) away from the diffusion cover (102) is connected to a hose (108), and one end of the hose (108) away from the diffusion cover (102) passes through the tank body (1). When in use, the output shafts of the two first motors (103) rotate, so that the two diffusion covers (102) move in a direction away from each other. When the output shafts of the two first motors (103) rotate in the opposite direction, the two diffusion covers (102) move in a direction close to each other until the two diffusion covers (102) are respectively attached to the two ends of the sphere (201); A steering mechanism (2) is used to redirect the activated carbon after the activated carbon on one side is fully adsorbed, clean it, and regenerate it, and continue to treat the waste gas through the activated carbon on the other side, the steering mechanism (2) comprising a sphere (201) arranged inside the tank body (1), the arc surface of the sphere (201) being provided with two placement grooves (202), the two placement grooves (202) being respectively located on both sides of the sphere (201), the interior of the sphere (201) being fixedly connected with a first air outlet pipe (203) and a second air outlet pipe (204), the first air outlet pipe (203) and the second air outlet pipe (204) being respectively connected to the two placement grooves (202), and the arc surfaces of the first air outlet pipe (203) and the second air outlet pipe (204) both rotate and penetrate the tank body (1); A guide grabbing mechanism (3) is used to guide the gas when conveying the gas into the placement groove (202) so as to facilitate rapid diffusion of the gas, and to grab the activated carbon from the placement groove when replacing the activated carbon. The guide grabbing mechanism (3) comprises a square frame (301) fixedly connected to the inside of the diffusion cover (102), four fixed blocks (302) fixedly connected to the surface of the square frame (301), a third motor (303) fixedly connected to the surface of the fixed block (302), a guide frame (304) fixedly connected to the output end of the third motor (303), and a guide plate (305) slidably connected to the inside of the guide frame (304).

2. A VOCs waste gas treatment device according to claim 1, characterized in that: A second motor (207) is fixedly connected to the surface of one of the brackets (101); an output end of the second motor (207) is fixedly connected to a second gear (206); a tooth surface of the second gear (206) is meshed with a first gear (205); and the first gear (205) is fixedly connected to the arc surface of the first outlet pipe (203).

3. A VOCs waste gas treatment device according to claim 1, characterized in that: The cross-sectional shape of the diffusion cover (102) is trapezoidal, the arc surface of the diffusion cover (102) is fixedly connected to a limit rod (208), the arc surface of the limit rod (208) is slidably connected to a cylinder (209), and the cylinder (209) is fixedly connected to the inner wall of the tank body (1).

4. A VOCs waste gas treatment device according to claim 1, characterized in that: Four first springs (210) are fixedly connected to the inner wall of the placement groove (202), and one end of the four first springs (210) close to each other is fixedly connected to a pressing plate (211), and the cross-sectional shape of the pressing plate (211) is an arc shape.

5. A VOCs waste gas treatment device according to claim 4, characterized in that: The four pressing plates (211) are fixedly connected to a limiting column (212) on one side away from each other. The limiting column (212) is connected to the inner wall of the anti-sliding groove (202), and the first spring (210) is sleeved on the arc surface of the limiting column (212).

6. A VOCs waste gas treatment device according to claim 1, characterized in that: The side wall of the guide frame (304) is fixedly connected to an electric push rod (307), the output end of the electric push rod (307) is fixedly connected to a connecting plate (308), the connecting plate (308) is fixedly connected to the side wall of the guide plate (305), and a plurality of guide grooves (306) are provided on both sides of the guide frame (304) and the guide plate (305).

7. A VOCs waste gas treatment device according to claim 1, characterized in that: One end of the diffusion cover (102) away from the fixed tube (107) is fixedly connected to a sealing gasket (309), and the sealing gasket (309) is a rubber gasket.

8. A VOCs waste gas treatment device according to claim 1, characterized in that: The inner wall of the tank body (1) is provided with a vibration mechanism (4), which is used to vibrate the inside of the sphere (201) when the sphere (201) rotates at an angle, so that part of the granular impurities adsorbed by the activated carbon can fall off, the vibration mechanism (4) comprising a plurality of arc-shaped frames (401) fixedly connected to the inner wall of the tank body (1), a plurality of sliders (402) being slidably connected to the surface of the arc-shaped frames (401), a second spring (403) being fixedly connected to the surface of the slider (402), an end of the second spring (403) away from the slider (402) being fixedly connected to the arc-shaped frame (401), and a plurality of protrusions (404) being fixedly connected to the arc surface of the sphere (201).

9. A VOCs waste gas treatment device according to claim 8, characterized in that: The second spring (403) is located inside the arc-shaped frame (401), the shape of the protrusion (404) is hemispherical, and the cross-sectional shape of the end of the sliding block (402) protruding from the arc-shaped frame (401) is triangular.

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