Waste gas treatment device for petrochemical industry

Abstract

The invention discloses a waste gas treatment device for petrochemical engineering, and relates to the technical field of waste gas treatment.The waste gas treatment device for petrochemical engineering comprises a main body mechanism, and by arranging an auxiliary mechanism and a detection mechanism, waste gas and reaction liquid can be fully mixed; meanwhile, the contact area between the waste gas and the reaction liquid is increased, the reaction rate in the waste gas purification process is increased, the waste gas can be cooled through primary cooling of water when the waste gas enters, the influence of the waste gas temperature on the reaction is reduced, heat generated after the reaction between the waste gas and the reaction liquid is subjected to heat conversion with the water, and the heat conversion efficiency is improved. The temperature of the inner cavity of the first box body and the temperature of the inner cavity of the second box body are in a normal interval, the reaction efficiency of the waste gas is guaranteed, meanwhile, according to the emission concentration of the waste gas, the reacted waste gas is subjected to backflow and multiple reactions, and it is guaranteed that the waste gas meets the standard emission standard when exhausted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for petroleum chemical industry. BACKGROUND

[0002] Environmental protection is to use existing technical means to play a role in the field of environmental pollution control, among which waste gas treatment (desulfurization and denitrification of coal-fired tail gas of power plants), wastewater treatment, sludge disposal and disinfection have been widely used. Petroleum chemical waste gas refers to the toxic and harmful gas discharged by chemical plants in petroleum chemical production. Chemical waste gas often contains many types of pollutants with complex physical and chemical properties. If not properly treated, it will seriously pollute the environment and affect human health. Therefore, it needs to be treated by a purification device before being discharged. At this time, a waste gas treatment device for petroleum chemical industry is used.

[0003] The waste gas treatment device for petroleum chemical industry is usually composed of a gas storage tank and a mixing tank. The waste gas is discharged into the mixing tank, and the reaction liquid in the gas storage tank is transported to the mixing tank. The waste gas and the reaction liquid are reacted to purify the gas. After the waste gas enters the mixing tank, there is a lot of heat in itself. After the reaction, heat is also generated. When the temperature is too high, it is easy to reduce the efficiency of the neutralization reaction of the waste gas, which increases the reaction time of the waste gas and reduces the work efficiency.

[0004] And we can find that the existing waste gas treatment device for petroleum chemical industry on the market can hardly avoid the above-mentioned problems at the same time, and even if it can solve the problem, it needs to be solved by external tools, so it cannot achieve the desired effect. Therefore, we propose a waste gas treatment device for petroleum chemical industry. SUMMARY

[0005] The purpose of the present application is to provide a waste gas treatment device for petroleum chemical industry to solve the problems mentioned in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a waste gas treatment device for petroleum chemical industry, comprising a main mechanism, characterized in that: the main mechanism comprises a bottom plate, a first tank, a second tank, a first liquid storage tank and a second liquid storage tank are fixedly installed on the top of the bottom plate, a first gas booster pump is fixedly installed on the top of the first tank, a connecting pipe is fixedly installed on the top of the first tank, and an auxiliary mechanism is arranged in the inner cavity of the first tank and the second tank. The auxiliary mechanism comprises a stirring unit, the stirring unit is arranged in the inner cavity of the first tank and the second tank, and the stirring unit is used for stirring and mixing the gas; The auxiliary mechanism further comprises a circulating unit arranged on the top of the bottom plate, which is used for waste gas cooling and impurity removal treatment. The auxiliary mechanism further comprises a filtering unit arranged on the inner wall of the first box and the second box, which is used for reducing dust small particles inside the first box and the second box.

[0007] Preferably, the other end of the connecting pipe is fixedly connected with the output end of the first gas booster pump, the input end of the first gas booster pump is fixedly connected with a mounting pipe, the top of the first box is fixedly installed with a first guide pipe, the top of the second box is fixedly installed with a second gas booster pump, one end of the first guide pipe is fixedly connected with the input end of the second gas booster pump, the output end of the second gas booster pump is fixedly connected with a second guide pipe, one end of the second guide pipe penetrates into the inner cavity of the second box, one side of the first liquid storage tank and the second liquid storage tank is fixedly installed with a first vacuum pump, one side of the first liquid storage tank and the second liquid storage tank is fixedly communicated with a first air guide pipe, one end of the first air guide pipe is fixedly connected with the input end of the first vacuum pump, the output end of the first vacuum pump is fixedly connected with a second air guide pipe, one end of one of the second air guide pipes is fixedly communicated with one side of the first box, one end of the other second air guide pipe is fixedly communicated with one side of the second box, the top of the second box is fixedly communicated with a first gas outlet pipe, the top of the second box is fixedly installed with a second vacuum pump, one end of the first gas outlet pipe is fixedly connected with the input end of the second vacuum pump, the output end of the second vacuum pump is fixedly connected with a second gas outlet pipe, the stirring unit comprises a fixed ring, the inner wall of the first box and the second box is fixedly connected with the top of the fixed ring, the bottom of the fixed ring is provided with a rotating groove, the inner wall of the rotating groove is provided with a supporting groove, the inner cavity of the supporting groove is rotatably connected with a supporting ring, the bottom of the supporting ring is fixedly installed with a connecting block, the number of the connecting blocks is four, the bottom of the connecting block is fixedly installed with a stirring blade, the surface of the connecting pipe and the surface of the second guide pipe are fixedly communicated with a shunt pipe.

[0008] Preferably, the filtration unit includes a first filter plate, which is fixedly installed on the top of the stirring blade. The inner walls of the first and second housings are both fixedly connected to a fixed pipe. A spiral rod is rotatably connected to the inner cavity of the fixed pipe, with one end of the spiral rod extending to the outside of the fixed pipe. A gear is fixedly installed at one end of the spiral rod. An annular toothed plate is fixedly installed at the bottom of the first filter plate, and the surface of the annular toothed plate meshes with the gear. Several inlet holes are provided at the bottom of the fixed pipe. A second filter plate is fixedly installed at the bottom of the stirring blade. An extension rod is fixedly installed at the bottom of the fixed pipe, with a brush fixedly installed at one end of the extension rod. The surface of the brush contacts the top of the second filter plate. A support plate is provided on one side of the first and second housings opposite to each other. Both sides of the support plate are fixedly connected to one side of the first and second housings, respectively. A collection box is placed on the top of the support plate. One end of the fixed pipe is fixedly connected to an extension pipe via a flange, and one end of the extension pipe is fixedly connected to the top of the collection box via a flange.

[0009] Preferably, the circulation unit includes a water tank, which is fixedly installed on the top of the base plate. Water inlet pipes are fixedly connected to both sides of the water tank. One end of one water inlet pipe is fixedly connected to the surface of a first tank, and one end of the other water inlet pipe is fixedly connected to the surface of a second tank. A surrounding plate is fixedly installed on the inner wall of the first and second tanks. A flexible hose is provided on the inner side of the surrounding plate, and the surface of the flexible hose is fixedly installed on the inner wall of the surrounding plate. Both ends of the flexible hose extend to the outer side of the surrounding plate. One end of the flexible hose is fixedly connected to a drain pipe, and the other end of the flexible hose is fixedly connected to an outlet pipe. One end of the outlet pipe... One end of the other water outlet pipe extends to the outside of the first tank, and the other end extends to the outside of the second tank. A manifold is fixedly connected to the surface of the water tank. One end of each of the two water outlet pipes is fixedly connected to the surface of the manifold. Support rods are fixedly installed at the bottom of the two stirring blades. A rotating block is fixedly installed at the bottom of the two support rods. The surface of the rotating block is rotatably connected to the inside of the enclosure. Two extrusion blocks are fixedly installed on the surface of the rotating block. Extrusion rollers are rotatably connected to the inner wall of the extrusion blocks. Several extrusion rollers are present. The surface of the extrusion rollers is in extrusion contact with the surface of the hose.

[0010] Preferably, the inner wall of the second air outlet pipe is provided with a monitoring mechanism, the monitoring mechanism including a sliding hole, the sliding hole being formed in the inner wall of the second air outlet pipe, a trapezoidal plate being slidably connected to the inner cavity of the sliding hole, a fixing frame being fixedly installed at the bottom of the trapezoidal plate, an air quality detector being slidably connected to the inner side of the fixing frame, a sliding groove being formed at the bottom of the trapezoidal plate, a locking block being slidably connected to the inner cavity of the sliding groove, the locking block contacting the opposite side of the fixing frame, a moving groove being formed in the inner wall of the sliding hole, a sealing plate being slidably connected to the inner cavity of the moving groove, and a sealing plate being provided in the inner cavity of the moving groove. A spring is fixedly installed at one end on the inner wall of the moving groove, and at the other end on the top of the sealing plate. A return pipe is fixedly connected to the surface of the second air outlet pipe. There are two return pipes, one of which is fixedly connected at one end to the surface of the mounting pipe, and the other is fixedly connected at one end to the surface of the first guide pipe. A first solenoid valve is fixedly installed on the surface of the second air outlet pipe, and a second solenoid valve is fixedly installed on the surface of each of the two return pipes. The input ends of the first and second solenoid valves are electrically connected to the output end of the air quality detector.

[0011] Preferably, a telescopic rod is fixedly installed on the inner wall of the movable groove, and the telescopic end of the telescopic rod is fixedly connected to the top of the sealing plate.

[0012] Preferably, a docking ring is fixedly installed on the surface of the second air outlet pipe, a fixing groove is formed on the surface of the docking ring, a limiting groove is formed on the inner wall of the fixing groove, an installation block is fixedly installed on the bottom of the trapezoidal plate, a rotating rod is rotatably connected to the inner wall of the installation block, the surface of the rotating rod is rotatably connected to the inner cavity of the fixing groove, a limiting block is fixedly installed on the surface of the rotating rod, and the surface of the limiting block is movably connected to the inner cavity of the limiting groove.

[0013] Preferably, a docking groove is provided on one side of the fixing frame, an elastic clamp is fixedly installed on the inner wall of the docking groove, a docking block is fixedly installed on one side of the clamping block, a fixing rod is fixedly installed on the inner side of the docking block, the surface of the docking block is slidably connected to the inner cavity of the docking groove, and the inner side of the elastic clamp is in contact with the surface of the fixing rod.

[0014] Preferably, the inner walls of the first and second housings are provided with bearings, the bottom of the rotating block is fixedly installed with a connecting rod, the inner walls of the first and second housings are fixedly connected to the outer side of the bearing outer ring, and the inner side of the bearing inner ring is fixedly connected to the surface of the connecting rod.

[0015] Preferably, the inner wall of the support ring is rotatably connected to a rotating ball, and the surface of the rotating ball is in contact with the inner wall of the support groove.

[0016] Preferably, a filter screen is fixedly installed on the inner wall of the collection box, and a drain pipe is fixedly connected to one side of the collection box, with one end of the drain pipe fixedly connected to the surface of the water tank.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a combination of a stirring unit, a filtration unit, and a circulation unit. After the salt-alkali neutralization reaction occurs within the inner cavity of the first or second chamber, the water inside the first or second chamber provides initial cooling to the incoming exhaust gas, reducing the impact of the exhaust gas's self-generated heat on the salt-alkali neutralization reaction. Simultaneously, the water exchanges heat with the reaction heat. During the reaction, stirring increases the contact between the exhaust gas and the water and reacting gas, enhancing the heat exchange efficiency between water and gas. The water after heat exchange flows back to the water tank for recooling, allowing it to re-enter the tank, achieving cyclic cooling. This keeps the temperature within the normal range, further ensuring the efficiency of the salt-alkali neutralization reaction. Furthermore, the dust in the exhaust gas is suspended in the water, removing small dust particles and reducing their impact on water flow.

[0018] 2. This invention, by setting up a detection mechanism, can determine whether the air meets the discharge standards based on the pH value of the gas in the second outlet pipe. If it does not meet the discharge standards, the gas is returned to the inner cavity of the first or second chamber for re-filtration based on the emission concentration displayed by the air quality detector. This achieves gas monitoring and ensures that the discharged gas meets the standards. It also achieves the purpose of monitoring whether the gas in the second outlet pipe meets the emission standards. During discharge, the purified gas is cooled with water to keep it at a suitable temperature and reduce the impact of heat on the surrounding environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the first filter plate and the second filter plate of the present invention; Figure 3 This is a schematic diagram of the structure of the outlet pipe and the manifold of the present invention; Figure 4 This is a schematic diagram of the structure of the diversion tube of the present invention; Figure 5 This is an exploded view of the structure of the fixing ring and the supporting ring of the present invention; Figure 6 This is an exploded view of the connecting rod and bearing of the present invention; Figure 7 This is an exploded view of the sliding hole and trapezoidal plate of the present invention; Figure 8 This is an exploded view of the card block, fixing frame, and air quality detector of the present invention; Figure 9 This is a schematic diagram of the structure of the spring, telescopic rod, and sealing plate of the present invention; Figure 10 This is a schematic diagram of the air quality detector of the present invention; Figure 11 This is a schematic diagram of the structure of the fixing tube of the present invention; Figure 12 This is an exploded view of the structure of the fixing tube and the screw rod of the present invention; Figure 13 This is a schematic diagram of the structure of the stirring blade, support rod, surrounding plate and hose of the present invention; Figure 14 This is a schematic diagram of the structure of the stirring blade of the present invention; Figure 15 This is a schematic diagram of the structure of the stirring blade of the present invention; Figure 16 This is a schematic diagram of the structure of the stirring blade of the present invention.

[0020] In the diagram: 1. Main structure; 101. First housing; 102. Second housing; 103. First liquid storage tank; 104. Second liquid storage tank; 105. First gas booster pump; 106. Connecting pipe; 107. Mounting pipe; 108. First guide pipe; 109. Second gas booster pump; 110. Second guide pipe; 111. First vacuum pump; 112. First gas guide pipe; 113. Second gas guide pipe; 114. Second vacuum pump; 115. First gas outlet pipe; 116. Second gas outlet pipe; 117. Base plate; 2. Auxiliary Mechanism; 21. Stirring Unit; 2101. Fixed Ring; 2102. Rotating Groove; 2103. Support Groove; 2104. Support Ring; 2105. Connecting Block; 2106. Stirring Blade; 2107. Diverter Pipe; 2108. Rotating Ball; 22. Circulation Unit; 2201. Water Tank; 2202. Inlet Pipe; 2203. Enclosure; 2204. Flexible Hob; 2205. Drainage Pipe; 2206. Outlet Pipe; 2207. Manifold; 2208. Support Rod; 2209. Rotating Block; 2210. Extrusion Block; 2 211. Bearing; 2212. Connecting rod; 2213. Extrusion roller; 23. Filter unit; 2301. First filter plate; 2302. Fixing tube; 2303. Spiral rod; 2304. Gear; 2305. Annular toothed plate; 2306. Inlet hole; 2307. Second filter plate; 2308. Eye rod; 2309. Brush; 2310. Support plate; 2311. Collection box; 2312. Extension tube; 2313. Filter screen; 2314. Drain pipe; 3. Monitoring mechanism; 301. Sliding hole; 30 2. Trapezoidal plate; 303. Fixing frame; 304. Sliding groove; 305. Locking block; 306. Moving groove; 307. Sealing plate; 308. Spring; 309. Return pipe; 310. Telescopic rod; 311. Connecting ring; 312. Fixing groove; 313. Mounting block; 314. Rotating rod; 315. Limiting groove; 316. Limiting block; 317. Connecting groove; 318. Connecting block; 319. Elastic clamp; 320. Fixing rod; 321. First solenoid valve; 322. Second solenoid valve; 323. Air quality detector. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 14The present invention provides a technical solution: a waste gas treatment device for petrochemical industry, including a main body 1, the main body 1 including a base plate 117, a first box 101, a second box 102, a first liquid storage tank 103 and a second liquid storage tank 104 fixedly installed on the top of the base plate 117, a first gas booster pump 105 fixedly installed on the top of the first box 101, a connecting pipe 106 fixedly installed on the top of the first box 101, and auxiliary mechanisms 2 are provided in the inner cavities of the first box 101 and the second box 102. The auxiliary mechanism 2 includes a stirring unit 21, which is disposed in the inner cavity of the first chamber 101 and the second chamber 102. The stirring unit 21 is used to stir and mix the gas.

[0023] As a further definition of the auxiliary mechanism 2 of the present invention, one end of the connecting pipe 106 extends into the inner cavity of the first housing 101, and the other end of the connecting pipe 106 is fixedly connected to the output end of the first gas booster pump 105. An installation pipe 107 is fixedly connected to the input end of the first gas booster pump 105. A first guide pipe 108 is fixedly installed on the top of the first housing 101, and a second gas booster pump 109 is fixedly installed on the top of the second housing 102. One end of the first guide pipe 108 is fixedly connected to the input end of the second gas booster pump 109, and a second guide pipe 110 is fixedly connected to the output end of the second gas booster pump 109. One end of pipe 110 extends into the inner cavity of the second housing 102. A first vacuum pump 111 is fixedly installed on one side of both the first liquid storage tank 103 and the second liquid storage tank 104. A first air guide pipe 112 is fixedly connected to one side of both the first liquid storage tank 103 and the second liquid storage tank 104. One end of the first air guide pipe 112 is fixedly connected to the input end of the first vacuum pump 111. A second air guide pipe 113 is fixedly connected to the output end of the first vacuum pump 111. One end of one second air guide pipe 113 is fixedly connected to one side of the first housing 101, and one end of the other second air guide pipe 113 is fixedly connected to one side of the second housing 102. The top of the housing 102 is fixedly connected to a first exhaust pipe 115, and the top of the second housing 102 is fixedly mounted with a second vacuum pump 114. One end of the first exhaust pipe 115 is fixedly connected to the input end of the second vacuum pump 114, and the output end of the second vacuum pump 114 is fixedly connected to a second exhaust pipe 116. The stirring unit 21 includes a fixing ring 2101, which is fixedly connected to the inner walls of the first housing 101 and the second housing 102 respectively. A rotating groove 2102 is formed at the bottom of the fixing ring 2101, and a support groove 2103 is formed on the inner wall of the rotating groove 2102. A support is rotatably connected to the inner cavity of the support groove 2103. Ring 2104, with four connecting blocks 2105 fixedly installed at the bottom of the supporting ring 2104. Stirring blades 2106 are fixedly installed at the bottom of the connecting blocks 2105. Diverting pipes 2107 are fixedly connected to the surface of the connecting pipe 106 and the surface of the second guide pipe 110. When the exhaust gas enters the inner cavity of the first box 101 and the second box 102, the exhaust gas is guided through the diverting pipes 2107, so that the generated airflow blows towards the stirring blades 2106. Through the rotation of the stirring blades 2106, the gas and the reaction liquid can be fully mixed, reducing the reaction time and increasing the gas purification efficiency.

[0024] A rotating ball 2108 is rotatably connected to the inner wall of the support ring 2104. The surface of the rotating ball 2108 is in contact with the inner wall of the support groove 2103. Through the contact between the rotating ball 2108 and the inner wall of the support groove 2103, the friction of the stirring blade 2106 can be reduced, the airflow force required for the stirring blade 2106 to rotate is reduced, and the stirring blade 2106 can rotate more smoothly.

[0025] The specific implementation of this embodiment is as follows: The flange on the mounting pipe 107 is connected to the exhaust pipe hole of the chemical waste gas. After connection, the first gas booster pump 105 is started by an external power source. The first gas booster pump 105 guides the waste gas from the mounting pipe 107 to the connecting pipe 106. The connecting pipe 106 is connected to a diversion pipe 2107 for gas diversion. The outlet of the diversion pipe 2107 is set to face the stirring blade 2106, which can blow the stirring blade 2106 to rotate. During the rotation, the connecting block 2105 rotates in the inner cavity of the rotating groove 2102, driving the support ring 210. 4. The stirring blade 2106 rotates within the inner cavity of the support groove 2103. The support ring 2104 and connecting block 2105 support the stirring blade 2106. The contact between the rotating ball 2108 and the inner wall of the support groove 2103 reduces the frictional force of the stirring blade 2106, thus lowering the airflow required for its rotation and allowing for smoother rotation. This enables the stirring blade 2106 to rotate along the groove opening trajectory of the rotating groove 2102. The first vacuum pump 111 is then activated, drawing the liquid stored in the first and second storage tanks 103, which reacts with the chemical waste gas, from the first guide tube. The gas is delivered from the first gas pipe 112 to the second gas guide pipe 113, and then from the second gas guide pipe 113 to the inner cavity of the first chamber 101 and the second chamber 102. Through the opening of the diversion pipe 2107, the gas flows towards the stirring blade 2106. Firstly, the airflow of the waste gas drives the stirring blade 2106 in the inner cavity of the first chamber 101 to rotate. The rotation of the stirring blade 2106 achieves thorough mixing of the waste gas and the reaction liquid, completing the first step of waste gas purification. Then, the second gas booster pump 109 is activated, which delivers the reacted waste gas from the first guide pipe 108 to the second guide pipe 110, allowing the waste gas to enter the second chamber 102. The second guide tube 110 blows into the diversion tube 2107, and blows the stirring blade 2106 in the inner cavity of the second box 102 to rotate. The direction of rotation of the stirring blade 2106 blown by the diversion tube 2107 in the second box 102 is opposite to the direction of rotation of the stirring blade 2106 in the first box 101. This can achieve a second mixing of the waste gas and the reaction liquid, and a second purification of the waste gas. The purified gas is then discharged by starting the second vacuum pump 114, which causes the reacted gas in the inner cavity of the second box 102 to flow from the first outlet tube 115 to the second outlet tube 116.

[0026] Example 2: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 ,and Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 13The present invention provides a technical solution: a waste gas treatment device for petrochemical industry. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The auxiliary mechanism 2 also includes a circulation unit 22, which is disposed on the top of the base plate 117. The circulation unit 22 is used to cool and remove impurities from the waste gas.

[0027] As a further definition of the auxiliary mechanism 2 of the present invention, the circulation unit 22 includes a water tank 2201, which is fixedly installed on the top of the base plate 117. Water inlet pipes 2202 are fixedly connected to both sides of the water tank 2201. One end of one water inlet pipe 2202 is fixedly connected to the surface of the first tank 101, and one end of the other water inlet pipe 2202 is fixedly connected to the surface of the second tank 102. A surrounding plate 2203 is fixedly installed on the inner walls of the first tank 101 and the second tank 102. A flexible hose 2204 is provided on the inner side of the surrounding plate 2203. The surface of the hose 2204 is fixedly installed on the inner wall of the enclosure 2203. Both ends of the hose 2204 extend to the outer side of the enclosure 2203. One end of the hose 2204 is fixedly connected to a drain pipe 2205, and the other end is fixedly connected to a water outlet pipe 2206. One end of one water outlet pipe 2206 extends to the outer side of the first tank 101, and the other end extends to the outer side of the second tank 102. The surface of the water tank 2201 is fixedly connected to a manifold 2207, and one end of each of the two water outlet pipes 2206 is connected to the manifold 2207. The surfaces are fixedly connected. A support rod 2208 is fixedly installed at the bottom of the second filter plate 2307. A rotating block 2209 is fixedly installed at the bottom of both support rods 2208. An extrusion block 2210 is fixedly installed on the surface of the rotating block 2209. There are two extrusion blocks 2210. An extrusion roller 2213 is rotatably connected to the inner wall of the extrusion block 2210. There are several extrusion rollers 2213. The surface of the extrusion roller 2213 is in extrusion contact with the surface of the hose 2204. The extrusion block 2210 and the hose 2204 are driven by the stirring blade 2106 to move. Contact is made by squeezing the hose 2204 with the squeezing roller 2213, creating a partial vacuum in the hose 2204. Using the suction force of the vacuum, the water in the first water tank 2201 and the second water tank 2201 can be discharged from the outlet pipe 2206. The water is blown in opposite directions through the diversion pipe 2107 inside the first tank 101 and the diversion pipe 2107 inside the second tank 102, so that the water in the first tank 101 and the water in the second tank 102 can be discharged to the opposite side, so that the heated water can be returned to the water tank 2201 for cooling. Bearings 2211 are provided on the inner walls of both the first housing 101 and the second housing 102. A connecting rod 2212 is fixedly installed on the bottom of the rotating block 2209. The inner walls of both the first housing 101 and the second housing 102 are fixedly connected to the outer side of the outer ring of the bearing 2211. The inner side of the inner ring of the bearing 2211 is fixedly connected to the surface of the connecting rod 2212. During the rotation of the rotating block 2209, the connecting rod 2212 will rotate in the inner cavity of the first housing 101 and the second housing 102. Through the bearing 2211, the friction between the two can be reduced, thereby reducing the resistance to the rotation of the rotating block 2209 and making the rotation of the stirring blade 2106 and the rotating block 2209 smoother. A monitoring mechanism 3 is provided on the inner wall of the second air outlet pipe 116. The monitoring mechanism 3 includes a sliding hole 301, which is opened in the inner wall of the second air outlet pipe 116. A trapezoidal plate 302 is slidably connected to the inner cavity of the sliding hole 301. A fixing bracket 303 is fixedly installed at the bottom of the trapezoidal plate 302. An air quality detector 323 is slidably connected to the inner side of the fixing bracket 303. A sliding groove 304 is opened at the bottom of the trapezoidal plate 302. A locking block 305 is slidably connected to the inner cavity of the sliding groove 304. The locking block 305 is in contact with the opposite side of the fixing bracket 303. A moving groove 306 is opened on the inner wall of the sliding hole 301. A sealing plate 307 is slidably connected to the inner cavity of the moving groove 306. A spring 308 is provided in the inner cavity of the moving groove 306. One end of the spring 308 is fixedly installed in the inner wall of the moving groove 306, and the other end of the spring 308 is fixedly installed in the top of the sealing plate 307. The surface of the second air outlet pipe 116 is fixed. There are two return pipes 309 connected to the air supply pipe 107. One end of one return pipe 309 is fixedly connected to the surface of the mounting pipe 107, and the other end of the return pipe 309 is fixedly connected to the surface of the first guide pipe 108. A first solenoid valve 321 is fixedly installed on the surface of the second outlet pipe 116, and a second solenoid valve 322 is fixedly installed on the surface of both return pipes 309. The input ends of the first solenoid valve 321 and the second solenoid valve 322 are electrically connected to the output end of the air quality detector 323. The detector can determine whether the air can be discharged based on whether the gas in the second outlet pipe 116 meets the discharge standard. If the discharge range is not met, the gas is returned to the inner cavity of the first chamber 101 or the second chamber 102 for re-filtration based on the result displayed by the humid air quality detector 323. This enables real-time monitoring of the gas and ensures that the discharged gas meets the normal emission range. A telescopic rod 310 is fixedly installed on the inner wall of the moving groove 306. The telescopic end of the telescopic rod 310 is fixedly connected to the top of the sealing plate 307. The telescopic rod 310 guides the movement of the sealing plate 307, so that the sealing plate 307 moves up and down in a vertical state. A docking ring 311 is fixedly installed on the surface of the second exhaust pipe 116. A fixing groove 312 is opened on the surface of the docking ring 311. A limiting groove 315 is opened on the inner wall of the fixing groove 312. An installation block 313 is fixedly installed on the bottom of the trapezoidal plate 302. A rotating rod 314 is rotatably connected to the inner wall of the installation block 313. The surface of the rotating rod 314 is rotatably connected to the inner cavity of the fixing groove 312. A limiting block 316 is fixedly installed on the surface of the rotating rod 314. The surface of the limiting block 316 is movably connected to the inner cavity of the limiting groove 315. By rotating the rotating rod 314 in the inner cavity of the fixing groove 312, the opening of the limiting groove 315 is no longer misaligned with the limiting block 316, and the trapezoidal plate 302 is pulled outward to move. The rotating rod 314 moves out of the inner cavity of the fixing groove 312, so that the docking block 318 and the docking ring 311 are no longer in contact, and the trapezoidal plate 302 can be removed. A docking groove 317 is provided on one side of the fixing frame 303. An elastic clip 319 is fixedly installed on the inner wall of the docking groove 317. A docking block 318 is fixedly installed on one side of the locking block 305. A fixing rod 320 is fixedly installed on the inner side of the docking block 318. The surface of the docking block 318 is slidably connected to the inner cavity of the docking groove 317. The inner side of the elastic clip 319 is in contact with the surface of the fixing rod 320. Pushing the locking block 305 closer to the fixing frame 303 allows the docking block 318 to enter the inner cavity of the docking groove 317 and the fixing rod 320 to enter the inner side of the elastic clip 319, thus fixing the position of the locking block 305 and realizing the replacement of the test paper.

[0028] The specific implementation method of this embodiment is as follows: Water is added to the water tank 2201. When the water level is higher than the opening of the outlet pipe 2206, excess water will enter the inner cavity of the first tank 101 and the second tank 102, thus filling the first tank 101 and the second tank 102 with water until the water in the first tank 101, the second tank 102 and the water tank 2201 overflows the height of the inlet pipe 2202. When the exhaust gas enters the connecting pipe 106, the heat of the exhaust gas is exchanged with the water, thus achieving preliminary cooling treatment of the exhaust gas. The gas pressure generated by the first gas booster pump 105 is greater than the sum of the water resistance, the friction force of the rotating ball 2108 rotating in the inner cavity of the support groove 2103 and the friction force generated by the rotation of the bearing 2211, thus preventing the stirring blade 2106 from failing to rotate. The exhaust gas enters the inner cavity of the first chamber 101, where water filters out small dust particles. The contact between the exhaust gas and water provides a second cooling effect. The heat generated after purification in the first and second chambers 101 and 102 simultaneously causes the stirring blades 2106 to mix the water with the gas inside either chamber 101 or 102, thus exchanging heat and cooling the gas. As the stirring blades 2106 rotate, they also rotate the support rod 2208. This rotation of the support rod 2208 causes the rotating block 2209 to rotate inside the enclosure 2203, allowing the extrusion block 2210 to press against the hose 220. 4. The hose 2204 is fixed in position by the enclosure plate 2203, so that the surface of the hose 2204 contacts the inner side of the enclosure plate 2203. The stirring blade 2106 drives the extrusion block 2210 to contact the hose 2204, and the extrusion roller 2213 extrudes the hose 2204. At the same time, it can reduce the friction generated by the extrusion block 2210 extruding the hose 2204, and prevent the stirring blade 2106 from being unable to rotate. It can move the air in the hose 2204 to the inner cavity of the water outlet pipe 2206, so that a local vacuum appears on one side of the hose 2204. This allows water from the first box 101 or the second box 102 to enter the inner cavity of the hose 2204 through the drainage pipe 2205, and then flow through the diversion pipe inside the first box 101. The direction of the airflow from the diversion pipe 2107 inside the first tank 101 is opposite to that of the diversion pipe 2107 inside the second tank 102, causing the water in the first tank 101 and the water in the second tank 102 to be discharged to opposite sides. This allows the heated water inside the first tank 101 and the second tank 102 to be discharged from the outlet pipe 2206. The outlet pipe 2206 then transports the water to the manifold 2207, from which it re-enters the water tank 2201 for cooling, thus achieving water circulation cooling. During the rotation of the rotating block 2209, the connecting rod 2212 rotates within the first tank 101 and the second tank 102. Through the bearing 2211, the friction between the two is reduced, thereby reducing the resistance after the rotating block 2209 rotates.To ensure smoother rotation of the stirring blade 2106 and the rotating block 2209, the reacted gas is transported from the first outlet pipe 115 to the inner cavity of the second outlet pipe 116 via the second vacuum pump 114. At this time, the first solenoid valve 321 and the second solenoid valve 322 of the return pipe 309 and the second outlet pipe 116 are closed. When the gas comes into contact with the air quality detector 323 at the bottom of the trapezoidal plate 302, the air quality detector 323 monitors the gas emission concentration in real time. When the air quality detector 323 detects that the gas does not meet the emission standards and the difference is large, the second solenoid valve 322 of the return pipe 309 connected to the installation pipe 107 is opened, and the first gas booster pump 105 flushes and injects the gas into the inner cavity of the first chamber 101. The gas continues to react with the reaction liquid in the first chamber 101 to achieve further purification. When the monitored gas concentration is close to the emission standard, the second solenoid valve 322 on the return pipe 309 connected to the first guide pipe 108 is opened, and the gas is re-sent to the inner cavity of the second chamber 102 by the second gas booster pump 109 to react with the reaction liquid in the inner cavity of the second chamber 102 to achieve gas purification. When the emission concentration of the gas meets the emission standard, the first solenoid valve 321 above the second outlet pipe 116 is opened to allow the gas to be discharged from the second outlet pipe 116. After the air quality detector 323 has been used for a long time, it needs to be inspected or repaired. At this time, the rotating rod 314 is rotated to make the rotation... The moving rod 314 rotates within the cavity of the fixed groove 312, causing the opening of the limiting groove 315 to coincide with the limiting block 316, pulling the trapezoidal plate 302 outward. This moves the trapezoidal plate 302 out of the cavity of the sliding hole 301, disengaging the mounting block 313 from the mating ring 311, allowing the trapezoidal plate 302 to be removed. During the outward movement of the trapezoidal plate 302, the spring 308 within the cavity of the moving groove 306 is compressed, and the bottom of the sealing plate 307 is inclined, allowing it to contact the inclined surface of the trapezoidal plate 302. The reaction force of the compressed spring 308 ensures that the sealing plate 307 remains in contact with the top of the trapezoidal plate 302. Once the inclined surfaces of the two surfaces are in contact, during the removal of the trapezoidal plate 302, the sealing plate 307... The device extends slowly down the slope of the trapezoidal plate 302. During the process after the trapezoidal plate 302 contacts the inner wall of the sliding hole 301, the sliding hole 301 remains sealed, reducing gas leakage and minimizing environmental pollution. The telescopic rod 310 guides the movement of the sealing plate 307, allowing it to move vertically. This pulls the locking block 305 along the sliding groove 304, separating it from the fixing frame 303. This creates an opening on one side of the fixing frame 303, allowing the air quality detector 323 to be removed for inspection or maintenance. Pushing the locking block 305 closer to the fixing frame 303 allows the docking block 318 to enter the inner cavity of the docking groove 317.The fixing rod 320 is inserted into the inner side of the elastic clamp 319, thus fixing the position of the locking block 305 and reinstalling the air quality detector 323. The trapezoidal plate 302 is then re-entered into the inner cavity of the sliding hole 301. Through the contact between the inclined surface of the trapezoidal plate 302 and the inclined surface of the sealing plate 307, the sealing plate 307 is pushed upwards along the inner wall of the moving groove 306, re-compressing the spring 308.

[0029] Example 3: Please refer to Figure 1 , Figure 11 , Figure 12 , Figure 13 , Figure 15 and Figure 16 The present invention provides a technical solution: a waste gas treatment device for petrochemical industry. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The auxiliary mechanism 2 also includes a filter unit 23. The filter unit 23 is disposed on the inner wall of the first box 101 and the second box 102. The filter unit 23 is used to reduce the dust particles inside the first box 101 and the second box 102.

[0030] As a further definition of the auxiliary mechanism 2 of the present invention, the filter unit 23 includes a first filter plate 2301, which is fixedly installed on the top of the stirring blade 2106. The inner walls of the first housing 101 and the second housing 102 are both fixedly connected to a fixed tube 2302. A spiral rod 2303 is rotatably connected to the inner cavity of the fixed tube 2302. One end of the spiral rod 2303 extends through to the outside of the fixed tube 2302, and a gear 2304 is fixedly installed at one end of the spiral rod 2303. An annular toothed plate 2305 is fixedly installed at the bottom of the first filter plate 2301, and the surface of the annular toothed plate 2305 meshes with the gear 2304. An inlet hole 2306 is provided at the bottom of the fixed tube 2302, and the number of inlet holes 2306 is... The bottom of the stirring blade 2106 is fixedly installed with a second filter plate 2307, the bottom of the fixed tube 2302 is fixedly installed with an extension rod 2308, one end of the extension rod 2308 is fixedly installed with a brush 2309, the surface of the brush 2309 is in contact with the top of the second filter plate 2307, a support plate 2310 is provided on the side opposite to the first box 101 and the second box 102, the two sides of the support plate 2310 are fixedly connected to one side of the first box 101 and the second box 102 respectively, a collection box 2311 is placed on the top of the support plate 2310, one end of the fixed tube 2302 is fixedly connected to the extension tube 2312 through a flange, and one end of the extension tube 2312 is fixedly connected to the top of the collection box 2311 through a flange. A filter screen 2313 is fixedly installed on the inner wall of the collection box 2311. A drain pipe 2314 is fixedly connected to one side of the collection box 2311. One end of the drain pipe 2314 is fixedly connected to the surface of the water tank 2201. By setting up the filter screen 2313 and the drain pipe 2314, the collection box 2311 collects small dust particles in a concentrated manner. At the same time, the water flowing into the collection box 2311 is separated by the filter screen 2313, which can make the dust particles stay above the filter screen 2313. The water that enters the collection box 2311 will re-enter the water tank 2201 through the drain pipe 2314.

[0031] The specific implementation of this embodiment is as follows: After the exhaust gas enters the inner cavity of the first chamber 101 or the second chamber 102, water is used to filter the particulate matter and other small particles in the exhaust gas. The filtered small particles are blocked by the second filter plate 2307 to prevent them from entering the inner cavity of the hose 2204. At the same time, the rotation of the stirring blade 2106 causes the first filter plate 2301 to rotate. The rotation of the first filter plate 2301 causes the annular toothed plate 2305 to start rotating. Due to the meshing between the annular toothed plate 2305 and the gear 2304, the spiral rod 2303 in the inner cavity of the fixed tube 2302 can be rotated. During the rotation, the fixed tube 2302 drives the extension rod 2308 and the brush 2309 to start cleaning the top of the second filter plate 2307, so that the small particles are suspended in the water and enter the fixed tube 2302 through several inlet holes 2306. Inside the cavity, as the screw rod 2303 rotates, the small dust particles are pushed towards one end of the fixed pipe 2302 and enter the cavity of the extension pipe 2312. The height of one end of the extension pipe 2312 is higher than the water level. When a certain amount of dust accumulates, the small dust particles will enter the collection box 2311 from the cavity of the extension pipe 2312 for centralized collection, which can reduce the amount of dust particles in the water. At the same time, the water flowing into the collection box 2311 is separated by the filter screen 2313, which can keep the dust particles above the filter screen 2313. After entering the collection box 2311, the dust particles will re-enter the water tank 2201 through the drain pipe 2314. The extension pipe 2312 can be removed through the flange, making it convenient for the user to remove the collection box 2311 and move the collection box 2311 out of the top of the support plate 2310 for cleaning of the collection box 2311 and the extension pipe 2312.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device for petrochemical industry, comprising a main body (1), characterized in that: The main body (1) includes a base plate (117). A first box (101), a second box (102), a first liquid storage tank (103) and a second liquid storage tank (104) are fixedly installed on the top of the base plate (117). A first gas booster pump (105) is fixedly installed on the top of the first box (101). A connecting pipe (106) is fixedly installed on the top of the first box (101). An auxiliary mechanism (2) is provided in the inner cavity of both the first box (101) and the second box (102). The auxiliary mechanism (2) includes a stirring unit (21), which is disposed in the inner cavity of the first chamber (101) and the second chamber (102). The stirring unit (21) is used to stir and mix the gas. The auxiliary mechanism (2) also includes a circulation unit (22), which is located on the top of the base plate (117) and is used to cool and remove impurities from the exhaust gas. The auxiliary mechanism (2) further includes a filter unit (23), which is disposed on the inner wall of the first box (101) and the second box (102). The filter unit (23) is used to reduce the dust particles inside the first box (101) and the second box (102).

2. The waste gas treatment device for petrochemical industry according to claim 1, characterized in that: The other end of the connecting pipe (106) is fixedly connected to the output end of the first gas booster pump (105). The input end of the first gas booster pump (105) is fixedly connected to the mounting pipe (107). The top of the first housing (101) is fixedly installed with a first guide pipe (108). The top of the second housing (102) is fixedly installed with a second gas booster pump (109). One end of the first guide pipe (108) is fixedly connected to the input end of the second gas booster pump (109). The output end of the second gas booster pump (109) is fixedly connected to a second guide pipe (110). One end of the first liquid storage tank (103) extends into the inner cavity of the second housing (102). A first vacuum pump (111) is fixedly installed on one side of both the first liquid storage tank (103) and the second liquid storage tank (104). A first air guide pipe (112) is fixedly connected to one side of both the first liquid storage tank (103) and the second liquid storage tank (104). One end of the first air guide pipe (112) is fixedly connected to the input end of the first vacuum pump (111). A second air guide pipe (113) is fixedly connected to the output end of the first vacuum pump (111). One end of one of the second air guide pipes (113) is fixedly connected to one side of the first housing (101), and the other end is fixedly connected to the other side. One end of the second air guide pipe (113) is fixedly connected to one side of the second housing (102). The top of the second housing (102) is fixedly connected to the first air outlet pipe (115). The top of the second housing (102) is fixedly installed with the second vacuum pump (114). One end of the first air outlet pipe (115) is fixedly connected to the input end of the second vacuum pump (114). The output end of the second vacuum pump (114) is fixedly connected to the second air outlet pipe (116). The stirring unit (21) includes a fixing ring (2101). The inner walls of the first housing (101) and the second housing (102) are both connected to the fixing ring (2101). 01) is fixedly connected to the top. The bottom of the fixed ring (2101) is provided with a rotating groove (2102). The inner wall of the rotating groove (2102) is provided with a support groove (2103). The inner cavity of the support groove (2103) is rotatably connected to a support ring (2104). The bottom of the support ring (2104) is fixedly installed with a connecting block (2105). There are four connecting blocks (2105). The bottom of the connecting block (2105) is fixedly installed with a stirring blade (2106). The surface of the connecting pipe (106) and the surface of the second guide pipe (110) are both fixedly connected with a diversion pipe (2107).

3. The waste gas treatment device for petrochemical industry according to claim 2, characterized in that: The filter unit (23) includes a first filter plate (2301), which is fixedly installed on the top of the stirring blade (2106). The inner walls of the first housing (101) and the second housing (102) are both fixedly connected to a fixed pipe (2302). A spiral rod (2303) is rotatably connected to the inner cavity of the fixed pipe (2302). One end of the spiral rod (2303) extends through to the outside of the fixed pipe (2302), and a gear (2304) is fixedly installed at one end of the spiral rod (2303). An annular toothed plate (2305) is fixedly installed at the bottom of the first filter plate (2301), and the surface of the annular toothed plate (2305) meshes with the gear (2304). An inlet hole (2306) is provided at the bottom of the fixed pipe (2302), and the number of inlet holes (2306) is several. The stirring blade... A second filter plate (2307) is fixedly installed at the bottom of (2106). An extension rod (2308) is fixedly installed at the bottom of the fixed tube (2302). A brush (2309) is fixedly installed at one end of the extension rod (2308). The surface of the brush (2309) is in contact with the top of the second filter plate (2307). A support plate (2310) is provided on the side opposite to the first box (101) and the second box (102). The two sides of the support plate (2310) are fixedly connected to one side of the first box (101) and the second box (102), respectively. A collection box (2311) is placed on the top of the support plate (2310). An extension tube (2312) is fixedly connected to one end of the fixed tube (2302) through a flange. One end of the extension tube (2312) is fixedly connected to the top of the collection box (2311) through a flange.

4. A waste gas treatment device for petrochemical industry according to claim 3, characterized in that: The circulation unit (22) includes a water tank (2201), which is fixedly installed on the top of the base plate (117). Both sides of the water tank (2201) are fixedly connected to water inlet pipes (2202). One end of one water inlet pipe (2202) is fixedly connected to the surface of the first tank body (101), and one end of the other water inlet pipe (2202) is fixedly connected to the surface of the second tank body (102). The first tank body (101) and the second tank body... A partition plate (2203) is fixedly installed on the inner wall of the body (102). A flexible hose (2204) is provided on the inner side of the partition plate (2203). The surface of the flexible hose (2204) is fixedly installed on the inner wall of the partition plate (2203). Both ends of the flexible hose (2204) extend to the outer side of the partition plate (2203). One end of the flexible hose (2204) is fixedly connected to a drainage pipe (2205), and the other end of the flexible hose (2204) is fixedly connected to a water outlet pipe (2205). 6) One end of one of the water outlet pipes (2206) extends to the outside of the first tank (101), and one end of the other water outlet pipe (2206) extends to the outside of the second tank (102). A manifold (2207) is fixedly connected to the surface of the water tank (2201). One end of each of the two water outlet pipes (2206) is fixedly connected to the surface of the manifold (2207). A support rod (2208) is fixedly installed at the bottom of the second filter plate (2307). A rotating block (2209) is fixedly installed at the bottom of the two support rods (2208). A pressing block (2210) is fixedly installed on the surface of the rotating block (2209). There are two pressing blocks (2210). A pressing roller (2213) is rotatably connected to the inner wall of the pressing block (2210). There are several pressing rollers (2213). The surface of the pressing roller (2213) is in pressing contact with the surface of the hose (2204).

5. A waste gas treatment device for petrochemical industry according to claim 1, characterized in that: The inner wall of the second air outlet pipe (116) is provided with a monitoring mechanism (3). The monitoring mechanism (3) includes a sliding hole (301). The sliding hole (301) is opened in the inner wall of the second air outlet pipe (116). A trapezoidal plate (302) is slidably connected to the inner cavity of the sliding hole (301). A fixing frame (303) is fixedly installed at the bottom of the trapezoidal plate (302). An air quality detector (323) is slidably connected to the inner side of the fixing frame (303). A sliding groove (304) is opened at the bottom of the trapezoidal plate (302). A locking block (305) is slidably connected to the inner cavity of the sliding groove (304). The locking block (305) is in contact with the side opposite to the fixing frame (303). A moving groove (306) is opened in the inner wall of the sliding hole (301). A sealing plate (307) is slidably connected to the inner cavity of the moving groove (306). A spring (308) is provided in the inner cavity. One end of the spring (308) is fixedly installed on the inner wall of the moving groove (306), and the other end of the spring (308) is fixedly installed on the top of the sealing plate (307). A return pipe (309) is fixedly connected to the surface of the second air outlet pipe (116). There are two return pipes (309). One end of the return pipe (309) is fixedly connected to the surface of the mounting pipe (107), and one end of the other return pipe (309) is fixedly connected to the surface of the first guide pipe (108). A first solenoid valve (321) is fixedly installed on the surface of the second air outlet pipe (116), and a second solenoid valve (322) is fixedly installed on the surface of both return pipes (309). The input ends of the first solenoid valve (321) and the second solenoid valve (322) are electrically connected to the output end of the air quality detector (323).

6. A waste gas treatment device for petrochemical industry according to claim 5, characterized in that: The inner wall of the movable groove (306) is fixedly installed with a telescopic rod (310), and the telescopic end of the telescopic rod (310) is fixedly connected to the top of the sealing plate (307).

7. A waste gas treatment device for petrochemical industry according to claim 6, characterized in that: A docking ring (311) is fixedly installed on the surface of the second air outlet pipe (116). A fixing groove (312) is formed on the surface of the docking ring (311). A limiting groove (315) is formed on the inner wall of the fixing groove (312). An mounting block (313) is fixedly installed on the bottom of the trapezoidal plate (302). A rotating rod (314) is rotatably connected to the inner wall of the mounting block (313). The surface of the rotating rod (314) is rotatably connected to the inner cavity of the fixing groove (312). A limiting block (316) is fixedly installed on the surface of the rotating rod (314). The surface of the limiting block (316) is movably connected to the inner cavity of the limiting groove (315). A docking groove (317) is provided on one side of the fixing frame (303). An elastic clamp (319) is fixedly installed on the inner wall of the docking groove (317). A docking block (318) is fixedly installed on one side of the locking block (305). A fixing rod (320) is fixedly installed on the inner side of the docking block (318). The surface of the docking block (318) is slidably connected to the inner cavity of the docking groove (317). The inner side of the elastic clamp (319) is in contact with the surface of the fixing rod (320).

8. A waste gas treatment device for petrochemical industry according to claim 4, characterized in that: The inner walls of the first housing (101) and the second housing (102) are provided with bearings (2211), and the bottom of the rotating block (2209) is fixedly installed with a connecting rod (2212). The inner walls of the first housing (101) and the second housing (102) are fixedly connected to the outer side of the outer ring of the bearing (2211), and the inner side of the inner ring of the bearing (2211) is fixedly connected to the surface of the connecting rod (2212).

9. A waste gas treatment device for petrochemical industry according to claim 2, characterized in that: The inner wall of the support ring (2104) is rotatably connected to a rotating ball (2108), and the surface of the rotating ball (2108) is in contact with the inner wall of the support groove (2103).

10. A waste gas treatment device for petrochemical industry according to claim 3, characterized in that: A filter screen (2313) is fixedly installed on the inner wall of the collection box (2311), and a drain pipe (2314) is fixedly connected to one side of the collection box (2311). One end of the drain pipe (2314) is fixedly connected to the surface of the water tank (2201).

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