Waste gas treatment device

Abstract

The invention belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device which comprises a barrel, a purification structure is arranged in the barrel, a connecting air pipe is arranged on one side of the barrel and used for circulating waste gas, and a reaction cavity is formed in the end, close to the connecting air pipe, of the barrel. By arranging the connecting pipe, the rotating fluted disc rotates, the rotating fluted disc can drive the meshing gear to rotate together, and due to the fact that one end of the meshing gear is connected with the multiple adjusting pieces, the adjusting pieces can rotate with the meshing gear as the circle center, so that the size of a radial opening between the connecting air pipe and the barrel is automatically adjusted; the connecting air pipe can contain and smoothly flow waste gas, the adjacent adjusting pieces are not located on the same vertical line, rotation of the adjusting pieces cannot be affected by each other, sealing rubber strips are further arranged on the contact faces of the adjusting pieces, and therefore large abrasion caused by friction between the adjusting pieces is avoided, and the service life of the connecting air pipe is prolonged. And waste gas is led out from the abrasion position.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, in particular to a waste gas treatment device. Background Art

[0002] Waste gas is toxic and harmful gas discharged during human production and life. The semiconductor industry includes optoelectronic display devices, integrated circuits and photovoltaic cell manufacturing. In the product manufacturing process, various process waste gases with complex components are produced. In order to reduce the pollution of this harmful gas to the environment and protect the quality of the atmospheric environment and human health, these waste gases with complex components will be introduced into the tail gas treatment system for harmless treatment. The main methods include absorption, condensation and biological methods. This treatment can reduce the concentration of harmful substances in the waste gas and reduce its negative impact on the atmospheric environment.

[0003] A patent application with publication number CN117883922A discloses an exhaust gas spray tower device for exhaust gas treatment, including a spray tower and an air inlet pipe. A cleaning mechanism is arranged inside the spray tower, and the cleaning mechanism includes a filter screen, a piston box, an electric telescopic rod, a piston plate, and a movable rod. The top of the filter screen is fixedly connected to the bottom of the piston box. The device solves the problem that impurities remaining on the inner wall of the spray tower cannot be cleaned during actual use, resulting in the need for operators to manually clean it, thereby improving the working efficiency of the spray tower.

[0004] There are still some problems in the actual application of the above scheme. When the above device is treating exhaust gas, the exhaust gas will first enter the interior of the device through the intake pipe. In order to increase the flow rate of the exhaust gas inside the intake pipe, the intake pipe will be set to a special shape and the diameter of the intake pipe will become smaller and smaller from one end of the air inlet toward the inside of the device. The design of this intake pipe uses the Bernoulli principle to increase the flow rate of exhaust gas entering the device, but because the exhaust gas enters the intake pipe from the atmosphere, affected by different wind speeds, the flow rate of the exhaust gas in the intake pipe may be too fast, and the diameter of the intake pipe cannot be adjusted. This situation will increase the intake pipe resistance and pressure loss, thereby reducing the efficiency of exhaust gas treatment and may even cause the intake pipe to rupture.

[0005] To this end, the present invention provides an exhaust gas treatment device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: an exhaust gas treatment device described in the present invention comprises a cylinder, a purification structure is arranged inside the cylinder, a connecting air duct is arranged on one side of the cylinder, and the connecting air duct is used to circulate exhaust gas, a reaction chamber is arranged at one end of the cylinder close to the connecting air duct, and the reaction chamber is connected with the cylinder through the connecting air duct, an adjustment structure is arranged inside the connecting air duct, an air inlet pipe is arranged at the upper end of the reaction chamber, the air inlet pipe comprises a three-way pipe, a reducer and a nitrogen purge port are arranged on the three-way pipe, the reducer is used to pass the exhaust gas, and the inner diameter of the reducer gradually decreases along the gas flow direction, the upper end of the reaction chamber is connected with the three-way pipe, and the interior of the three-way pipe is slidably connected There is a scraper; the cylinder includes a purification chamber, the purification chamber is arranged inside the cylinder, and an air outlet is opened at the upper end of the cylinder; the purification structure includes an absorption plate, the absorption plate is arranged inside the cylinder, a spray pipe is arranged at the lower end of the absorption plate, and a spray groove is opened on the lower surface of the spray pipe; the adjustment structure includes: a connecting pipe, the connecting pipe is installed in the connecting air duct at a position close to the cylinder; a plurality of adjustment plates, the plurality of adjustment plates are arranged inside the connecting pipe, and the plurality of adjustment plates are in contact with each other, and the adjacent adjustment plates are not on the same vertical line; a meshing gear, the meshing gear is arranged at one end of the adjustment plate, and the meshing gear is rotatably connected to the inside of the connecting pipe.

[0008] Preferably, the purification structure further includes: a water storage frame, which is arranged at one end of the cylinder; a reflux chamber, which is arranged inside the water storage frame; a reflux pipe, which is arranged at one end of the water storage frame, and one end of the reflux pipe extends to the interior of the purification chamber, and the other end of the reflux pipe is connected to the reflux chamber; an extraction chamber, which is arranged inside the water storage frame; a water pipe, which is arranged at one end of the extraction chamber, and one end of the water pipe extends to the interior of the extraction chamber, and the other end of the water pipe is connected to a spray pipe; an isolation net, which is arranged inside the water storage frame, and the isolation net is arranged between the reflux chamber and the extraction chamber; the adjustment structure further includes: a rotating gear disc, which is rotatably connected to the interior of the connecting pipe, and the rotating gear disc is meshed with the meshing gear Preferably, a sliding groove is provided on the surface of the connecting pipe, and the adjusting piece is in contact with the inner wall of the sliding groove.

[0009] Preferably, a sliding shaft is slidably connected to one end of the connecting tube close to the sliding groove, and an abutment block is provided at one end of the sliding shaft, and the abutment block is in contact with the adjusting sheet.

[0010] Preferably, a telescopic spring is sleeved on the surface of the sliding shaft, one end of the telescopic spring is connected to the abutment block, and the other end of the telescopic spring is connected to the connecting pipe.

[0011] Preferably, a sealing strip is provided on the surface of a plurality of the adjustment sheets, and the plurality of the adjustment sheets are in contact with each other through the sealing strip.

[0012] Preferably, an extrusion block is slidably connected inside the spray pipe, and the lower end of the extrusion block abuts against the inner wall of the spraying trough.

[0013] Preferably, small holes are provided on the surface of the extrusion block, and the extrusion block is in close contact with the inner wall of the spray pipe.

[0014] Preferably, the lower end of the spray pipe is slidably connected to a tooth plate, and the extrusion blocks are provided at the upper ends of both sides of the tooth plate, the lower end of the tooth plate is rotatably connected to an intermittent gear, and the intermittent gear is meshed with the tooth plate, one end of the tooth plate is connected to a return spring, and a limit rod is provided inside the return spring.

[0015] Preferably, a connecting rod is provided at one end of the intermittent gear, a worm is rotatably connected inside the water pipe, a connecting track is sleeved on one end of the worm, and the other end of the connecting track is sleeved on the surface of the connecting rod.

[0016] The beneficial effects of the present invention are as follows: 1. An exhaust gas treatment device described in the present invention provides a connecting pipe, which is installed in a position close to the cylinder in the connecting air duct. When the exhaust gas enters the interior of the connecting air duct after combustion, the air pressure inside the connecting air duct can be detected in real time by a barometer inside the connecting air duct. If the air pressure continues to increase, the rotating gear disc is started to rotate, and the rotating gear disc will drive the meshing gear to rotate together. Since a plurality of adjusting plates are connected to one end of the meshing gear, the adjusting plate will rotate with the meshing gear as the center of the circle, thereby autonomously adjusting the diameter size between the connecting air duct and the cylinder to ensure that the connecting air duct can accommodate and smoothly flow the exhaust gas, and adjacent adjusting plates are not on the same vertical line, so that the rotation of the adjusting plates will not affect each other, and a sealing strip is also provided on the contact surface between the adjusting plates to avoid large wear caused by friction between the adjusting plates, which causes the exhaust gas to pass through the wear point.

[0017] 2. The exhaust gas treatment device described in the present invention is provided with an extrusion block. When the absorption liquid flows inside the water pipe, the absorption liquid will drive the worm to rotate, and then the connecting track located at one end of the worm will drive the tooth plate to move through the intermittent gear. Since an extrusion block is provided above the tooth plate, and the extrusion block is located inside the spray pipe, when the extrusion block moves, the absorption liquid will be continuously squeezed out from the inside of the spray slot, which not only realizes the spraying of the absorption liquid, but also can continuously rub the spray slot, thereby avoiding the phenomenon of solidification of the spray slot during the spraying process, and when the intermittent gear is no longer engaged with the tooth plate, the reset spring will release the elastic force to pull the tooth plate back, so that the tooth plate and the extrusion block can perform reciprocating circulation motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention; Figure 2 is an internal view of the first embodiment of the present invention; Figure 3 is a three-dimensional diagram of the purification structure of the present invention; Figure 4 is a stereoscopic view of the connecting pipe of the present invention; Figure 5 It is a connection diagram of the rotating toothed disc and the meshing gear of the present invention; Figure 6 is a front view of the connecting pipe of the present invention; Figure 7 is a three-dimensional diagram of the abutment block of the present invention; Figure 8 It is a three-dimensional diagram of the adjusting sheet and the sealing strip of the present invention; Fig. 9 It is a position diagram of the water pipe and the worm of the present invention; Fig.10 yes Fig. 9 A partial enlarged view of the middle part; Fig.11 It is a connection diagram of the intermittent gear and the tooth plate of the present invention; Fig.12 It is a position diagram of the water pipe and the tooth plate of the present invention; Fig.13 is an internal view of the air inlet pipe of the present invention; In the figure: 1, cylinder; 11, purification chamber; 12, air outlet; 2, connecting air duct; 3, purification structure; 31, water pipe; 32, absorption plate; 33, spray pipe; 34, water storage frame; 35, reflux chamber; 36, extraction chamber; 37, isolation net; 38, spray slot; 39, reflux pipe; 4, adjustment structure; 401, connecting pipe; 402, rotating gear plate; 403, meshing gear; 404, adjustment Segment; 405, sliding groove; 406, abutment block; 407, sealing strip; 408, sliding shaft; 409, telescopic spring; 410, extrusion block; 411, tooth plate; 412, worm; 413, connecting track; 414, connecting rod; 415, intermittent gear; 416, return spring; 417, limit rod; 5, reaction chamber; 6, air inlet pipe; 61, nitrogen purge port; 62, scraper. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0021] like Figures 1 to 13 As shown, an exhaust gas treatment device according to an embodiment of the present invention comprises a barrel 1, a purification structure 3 is arranged inside the barrel 1, a connecting air duct 2 is arranged on one side of the barrel 1, and the connecting air duct 2 is used to circulate the exhaust gas, a reaction chamber 5 is arranged at one end of the barrel 1 close to the connecting air duct 2, and the reaction chamber 5 is connected with the barrel 1 through the connecting air duct 2, an adjusting structure 4 is arranged inside the connecting air duct 2, an air inlet pipe 6 is arranged at the upper end of the reaction chamber 5, and the air inlet pipe 6 comprises a three-way pipe, a reducer and a nitrogen purge port 61 are arranged on the three-way pipe, the reducer is used to pass the exhaust gas, and the inner diameter of the reducer gradually decreases along the gas flow direction, the upper end of the reaction chamber 5 is connected with the three-way pipe, and a scraper 62 is slidably connected inside the three-way pipe; the barrel 1 comprises a purification chamber 11, and the purification chamber 1 1 is arranged inside the cylinder 1, and an air outlet 12 is opened at the upper end of the cylinder 1; the purification structure 3 includes an absorption plate 32, which is arranged inside the cylinder 1, and a spray pipe 33 is arranged at the lower end of the absorption plate 32, and a spray groove 38 is opened on the lower surface of the spray pipe 33; the adjustment structure 4 includes: a connecting pipe 401, which is installed in the connecting air duct 2 at a position close to the cylinder 1; a plurality of adjustment plates 404, which are arranged inside the connecting pipe 401, and the plurality of adjustment plates 404 are in contact with each other, and adjacent adjustment plates 404 are not on the same vertical line; a meshing gear 403, which is arranged at one end of the adjustment plate 404, and the meshing gear 403 is rotatably connected to the inside of the connecting pipe 401.

[0022] Specifically, in a waste gas treatment device of the scheme, when the waste gas is treated, the waste gas enters through the upper end of the reducer, and the multiple reducers are connected to the tee. Since the inner diameter of the reducer gradually decreases along the gas flow direction, the change in the inner wall diameter of the pipe can increase the waste gas flow rate and avoid dust accumulation. Then the waste gas will enter the reaction chamber 5 through the tee for high-temperature combustion. At this time, the nitrogen purge port 61 set in the tee will be passed with nitrogen purge, and the scraper 62 will be started. The scraper 62 will scrape off the dust on the inner wall of the tee. The waste gas after combustion will enter the interior of the cylinder 1 through the connecting air duct 2, and will first be located in the purification chamber 11. At this time, there is an absorption liquid at the bottom of the purification chamber 11. The absorption liquid It is an alkaline solution, which can react with the acidic substances in the exhaust gas to neutralize, thereby achieving the effect of purifying the exhaust gas. A fan is provided inside the cylinder 1. Under the influence of the fan, the exhaust gas will move upward. At this time, the spray pipe 33 will also continuously spray the absorption liquid, and the absorption liquid will contact with the exhaust gas, thereby purifying the exhaust gas. Subsequently, in the process of the exhaust gas moving upward, the exhaust gas will contact with the absorption plate 32. A filler is placed on the surface of the absorption plate 32. The filler can increase the contact area between the exhaust gas and the absorption liquid, promote the full contact and mixing of the exhaust gas and the absorption liquid, and realize the removal of pollutants in the exhaust gas. Through multiple gas-liquid contacts and mixing, the exhaust gas becomes a dischargeable gas, and is finally discharged from the air outlet 12. However, due to the different combustion degrees of different exhaust gases, if the pressure difference generated by the combustion increases, the power of exhaust gas emission will be enhanced, which may lead to an increase in flow rate, and the flow rate of the exhaust gas in the connecting air duct 2 may be too fast, and the pipe diameter inside the connecting air duct 2 cannot be adjusted. Exhaust gas with too fast flow rate may cause resistance and pressure loss in the connecting air duct 2, thereby reducing the efficiency of exhaust gas treatment and even causing the connecting air duct 2 to rupture. For this reason, a connecting pipe 401 is installed inside the connecting air duct 2, and the connecting pipe 401 fits with the connecting air duct 2. In the initial state, the exhaust gas will pass through the gap between the adjusting plates 404, and a barometer is installed at one end of the connecting air duct 2 close to the cylinder 1. When the exhaust gas passes through the connecting air duct, 2, the barometer will detect the air pressure inside the connecting air duct 2 in real time. When the air pressure inside the connecting air duct 2 gradually increases, it means that the exhaust gas inside the connecting air duct 2 has increased and the flow rate of the exhaust gas is too fast. At this time, the meshing gear 403 is started to rotate, and the meshing gear 403 will drive the adjusting plate 404 to rotate. Since the adjacent adjusting plates 404 are not on the same vertical line, the rotation of the adjusting plates 404 will not affect each other, and the rotation can increase the gap between the adjusting plates 404, so that the exhaust gas can quickly pass through the connecting air duct 2 into the interior of the cylinder 1. This operation can autonomously adjust the diameter size between the connecting air duct 2 and the cylinder 1 to ensure that the connecting air duct 2 can accommodate and smoothly flow the exhaust gas.

[0023] like Figures 1 to 8As shown, the purification structure 3 also includes: a water storage frame 34, which is arranged at one end of the cylinder 1; a reflux chamber 35, which is arranged inside the water storage frame 34; a reflux pipe 39, which is arranged at one end of the water storage frame 34, and one end of the reflux pipe 39 extends to the inside of the purification chamber 11, and the other end of the reflux pipe 39 is connected to the reflux chamber 35; an extraction chamber 36, which is arranged inside the water storage frame 34; a water pipe 31, which is arranged at One end of the extraction chamber 36, and one end of the water pipe 31 extends into the interior of the extraction chamber 36, and the other end of the water pipe 31 is connected to the spray pipe 33; the isolation net 37, the isolation net 37 is arranged inside the water storage frame 34, and the isolation net 37 is arranged between the reflux chamber 35 and the extraction chamber 36; the adjustment structure 4 also includes: a rotating gear disc 402, the rotating gear disc 402 is rotatably connected to the inside of the connecting pipe 401, and the rotating gear disc 402 is meshed with the meshing gear 403.

[0024] Specifically, when the air pressure inside the connecting air duct 2 gradually increases, the rotating gear disc 402 is started. During the rotation process, the rotating gear disc 402 will drive the meshing gear 403 to rotate together, thereby realizing the adjustment of the diameter of the connecting air duct 2. When the absorption liquid is sprayed out from the spray pipe 33, the absorption liquid will be concentrated at the bottom of the cylinder 1, and then the reflux pipe 39 will draw the absorption liquid into the reflux chamber 35. Then, due to the influence of pressure, the absorption liquid will pass through the isolation net 37. The isolation net 37 is an activated carbon filter, which can be used as a filter medium for the absorption liquid to remove suspended particles and impurities, so that the absorption liquid entering the extraction chamber 36 can continue to be used. Then, the absorption liquid located in the extraction chamber 36 will enter the water pipe 31, and finally be sprayed out from the spray pipe 33 to realize exhaust gas treatment.

[0025] like Figure 4 As shown, a sliding groove 405 is formed on the surface of the connecting pipe 401 , and the adjusting piece 404 is in contact with the inner wall of the sliding groove 405 .

[0026] Specifically, by providing the sliding groove 405, during the rotation of the adjusting piece 404, if the rotation angle is too large, the adjusting piece 404 will slide along the inner wall of the sliding groove 405, so that the diameter of the connecting air duct 2 can be adjusted more.

[0027] like Figures 1 to 7 As shown, a sliding shaft 408 is slidably connected to one end of the connecting tube 401 near the sliding groove 405 , and an abutment block 406 is provided at one end of the sliding shaft 408 , and the abutment block 406 is in contact with the adjusting piece 404 .

[0028] Specifically, by setting the abutment block 406, in the initial state, the adjusting piece 404 is always in contact with the abutment block 406, so that the sealing effect of the inside of the connecting air duct 2 is better, thereby reducing the probability of exhaust gas flowing out from the gap between the sliding groove 405 and the adjusting piece 404, and when the adjusting piece 404 rotates, the adjusting piece 404 will also push the abutment block 406 to move, so that the adjusting piece 404 is always in contact with the abutment block 406, and the sealing of the inside of the connecting air duct 2 is always maintained.

[0029] like Figure 7 As shown, a telescopic spring 409 is sleeved on the surface of the sliding shaft 408 , and one end of the telescopic spring 409 is connected to the abutment block 406 , and the other end of the telescopic spring 409 is connected to the connecting pipe 401 .

[0030] Specifically, by setting the telescopic spring 409, when the adjusting piece 404 is rotated to increase the diameter of the connecting air duct 2, the adjusting piece 404 will abut against the abutment block 406, and at this time the telescopic spring 409 will also release the elastic force, so that the adjusting piece 404 and the abutment block 406 are in closer contact, and then when the adjusting piece 404 needs to be reset, the telescopic spring 409 will also release the elastic force, and finally automatically push the abutment block 406 back to its original position.

[0031] like Figure 8 As shown, a sealing strip 407 is provided on the surface of the plurality of adjustment sheets 404 , and the plurality of adjustment sheets 404 are in contact with each other through the sealing strip 407 .

[0032] Specifically, by providing a sealing strip 407, when the adjusting piece 404 is rotated to adjust the diameter of the connecting air duct 2, several adjusting pieces 404 will rub against each other through the sealing strip 407, which can not only reduce the wear between the surfaces of the adjusting pieces 404, but also reduce the gap between the adjusting pieces 404, so that the exhaust gas will not flow out of the air. Embodiment 2

[0033] like Fig. 9 As shown, in comparison with Example 1, another embodiment of the present invention is that an extrusion block 410 is slidably connected inside the spray pipe 33 , and the lower end of the extrusion block 410 abuts against the inner wall of the spraying slot 38 .

[0034] Specifically, since the spray pipe 33 is used to spray the absorption liquid evenly onto the filler, when the temperature of the working environment is low, the absorption liquid will solidify during the spraying process, resulting in clogging of the spray slot 38 and uneven spraying. For this purpose, an extrusion block 410 is designed. When the absorption liquid flows into the spray pipe 33 and is sprayed out from the spray slot 38, the extrusion block 410 is started. The extrusion block 410 will reciprocate inside the spray pipe 33, thereby scraping the inner wall of the spray slot 38, so that in a low temperature environment, the spray slot 38 will not be blocked due to the solidification of the absorption liquid.

[0035] like Figures 9 to 12 As shown, small holes are opened on the surface of the extrusion block 410 , and the extrusion block 410 is closely attached to the inner wall of the spray pipe 33 .

[0036] Specifically, by opening small holes on the surface of the extrusion block 410, the flow of the absorption liquid will not be affected, and because the extrusion block 410 is close to the inner wall of the spray pipe 33, when the extrusion block 410 moves back and forth, the extrusion block 410 can also assist in pushing the absorption liquid out of the spraying groove 38, so that the spraying effect is better.

[0037] like Figures 9 to 12 As shown, the lower end of the spray pipe 33 is slidably connected to a tooth plate 411, and extrusion blocks 410 are provided at the upper ends of both sides of the tooth plate 411, the lower end of the tooth plate 411 is rotatably connected to an intermittent gear 415, and the intermittent gear 415 is meshed with the tooth plate 411, one end of the tooth plate 411 is connected to a return spring 416, and a limit rod 417 is provided inside the return spring 416.

[0038] Specifically, when the absorption liquid flows into the spray pipe 33 and is sprayed out from the spray slot 38, the intermittent gear 415 is started to rotate. During the rotation, the intermittent gear 415 will drive the tooth plate 411 to move. When the tooth plate 411 moves to a certain position, the intermittent gear 415 will no longer mesh with the tooth plate 411. At this time, the return spring 416 will release the elastic force to pull the tooth plate 411 back, and the extrusion block 410 located above the tooth plate 411 will also reciprocate on the inner wall of the spray pipe 33, thereby realizing automatic scraping of the inner wall of the spray slot 38.

[0039] like Figures 9 to 12 As shown, a connecting rod 414 is provided at one end of the intermittent gear 415, and a worm 412 is rotatably connected inside the water pipe 31. One end of the worm 412 is sleeved with a connecting track 413, and the other end of the connecting track 413 is sleeved on the surface of the connecting rod 414.

[0040] Specifically, by setting up the worm 412, when the absorption liquid enters the interior of the water pipe 31, the absorption liquid will contact the worm 412, and the worm 412 is designed with a specific blade layout according to the flow rate of the absorption liquid, so that the absorption liquid can generate a specific vortex when passing through, and can generate sufficient torque to drive the worm 412 to rotate. When the worm 412 rotates, the worm 412 will drive the connecting rod 414 to rotate through the connecting track 413, thereby realizing the rotation of the intermittent gear 415.

[0041] Working principle: When treating the waste gas, the waste gas enters through the upper end of the reducer, and the multiple reducers are connected to the tee. Since the inner diameter of the reducer gradually decreases along the gas flow direction, the change in the inner wall diameter of the pipe can increase the waste gas flow rate and avoid dust accumulation. Then the waste gas will enter the reaction chamber 5 through the tee for high-temperature combustion. At this time, the nitrogen purge port 61 set in the tee will be passed with nitrogen purge, and the scraper 62 will be started. The scraper 62 will scrape off the dust on the inner wall of the tee. The burned waste gas will enter the interior of the cylinder 1 through the connecting air duct 2. In the initial state, the waste gas will pass through the gap between the adjusting plates 404, and a barometer is installed at the end of the connecting air duct 2 close to the cylinder 1. When the waste gas passes through the connecting air duct 2 When the air pressure in the connecting air duct 2 increases gradually, it means that the exhaust gas in the connecting air duct 2 increases and the exhaust gas flow rate is too fast. At this time, the rotating toothed disc 402 is started. The rotating toothed disc 402 will drive the meshing gear 403 to rotate together during the rotation. The meshing gear 403 rotates, and the meshing gear 403 will drive the adjusting piece 404 to rotate. Since the adjacent adjusting pieces 404 are not on the same vertical line, the rotation of the adjusting pieces 404 will not affect each other, and the rotation can increase the gap between the adjusting pieces 404, so that the exhaust gas can quickly pass through the connecting air duct 2 into the interior of the cylinder 1. This operation can autonomously adjust the diameter between the connecting air duct 2 and the cylinder 1. The size of the opening is adjusted, and then the absorption liquid will enter the interior of the purification chamber 11. At this time, there is absorption liquid at the bottom of the purification chamber 11. The absorption liquid is an alkaline solution, which can react with the acidic substances in the exhaust gas to neutralize, thereby achieving the effect of purifying the exhaust gas. A fan is provided inside the cylinder 1. Under the influence of the fan, the exhaust gas will move upward. At this time, the spray pipe 33 will also continuously spray the absorption liquid, and the absorption liquid flows into the spray pipe 33 from the water pipe 31. When the absorption liquid enters the interior of the water pipe 31, the absorption liquid will contact the worm 412, and the worm 412 is designed with a specific blade layout according to the flow rate of the absorption liquid, so that the absorption liquid generates a specific vortex when passing through, and generates sufficient torque to drive the worm 412 to rotate. 2 rotates, the worm 412 will drive the connecting rod 414 to rotate through the connecting track 413, so as to realize the rotation of the intermittent gear 415. The intermittent gear 415 will drive the tooth plate 411 to move during the rotation. When the tooth plate 411 moves to a certain position, the intermittent gear 415 will no longer mesh with the tooth plate 411. At this time, the return spring 416 will release the elastic force to pull the tooth plate 411 back. The extrusion block 410 located above the tooth plate 411 will also reciprocate on the inner wall of the spray pipe 33, so as to realize the automatic scraping of the inner wall of the spray slot 38. The absorption liquid sprayed from the spray pipe 33 will contact the exhaust gas, so as to purify the exhaust gas. Then, in the process of the exhaust gas moving upward, the exhaust gas will contact the absorption plate 32.Fillers are placed on the surface of the absorption plate 32, which can increase the contact area between the exhaust gas and the absorption liquid, promote the full contact and mixing of the exhaust gas and the absorption liquid, and achieve the removal of pollutants in the exhaust gas. After multiple gas-liquid contacts and mixing, the exhaust gas becomes a dischargeable gas and is finally discharged from the air outlet 12. At this time, the exhaust gas treatment is completed.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An exhaust gas treatment device, comprising a cylinder (1), a purification structure (3) being provided inside the cylinder (1), a connecting air duct (2) being provided on one side of the cylinder (1), and the connecting air duct (2) being used for circulating the exhaust gas, a reaction chamber (5) being provided at one end of the cylinder (1) close to the connecting air duct (2), and the reaction chamber (5) being connected to the cylinder (1) through the connecting air duct (2), characterized in that: The connecting air duct (2) is provided with an adjustment structure (4) inside, the upper end of the reaction chamber (5) is provided with an air inlet pipe (6), the air inlet pipe (6) comprises a three-way pipe, the three-way pipe is provided with a reducer and a nitrogen purge port (61), the reducer is used to introduce waste gas, and the inner diameter of the reducer gradually decreases along the gas flow direction, the upper end of the reaction chamber (5) is connected to the three-way pipe, and a scraper (62) is slidably connected inside the three-way pipe; The cylinder (1) comprises a purification chamber (11), wherein the purification chamber (11) is arranged inside the cylinder (1), and an air outlet (12) is provided at the upper end of the cylinder (1); The purification structure (3) comprises an absorption plate (32), wherein the absorption plate (32) is arranged inside the cylinder (1), a spray pipe (33) is arranged at the lower end of the absorption plate (32), and a spray groove (38) is arranged on the lower surface of the spray pipe (33); The regulating structure (4) comprises: A connecting pipe (401), the connecting pipe (401) being installed in the connecting air duct (2) at a position close to the cylinder (1); A plurality of adjustment plates (404), wherein the plurality of adjustment plates (404) are arranged inside the connecting tube (401), the plurality of adjustment plates (404) are in contact with each other, and adjacent adjustment plates (404) are not on the same vertical line; A meshing gear (403), wherein the meshing gear (403) is disposed at one end of the adjusting plate (404), and the meshing gear (403) is rotatably connected to the interior of the connecting pipe (401).

2. The exhaust gas treatment device according to claim 1, characterized in that: The purification structure (3) further includes: A water storage frame (34), the water storage frame (34) being arranged at one end of the cylinder (1); A reflux chamber (35), the reflux chamber (35) being arranged inside the water storage frame (34); a reflux pipe (39), the reflux pipe (39) being arranged at one end of the water storage frame (34), and one end of the reflux pipe (39) extending into the interior of the purification chamber (11), and the other end of the reflux pipe (39) being in communication with the reflux chamber (35); An extraction chamber (36), the extraction chamber (36) being arranged inside the water storage frame (34); a water pipe (31), the water pipe (31) being arranged at one end of the extraction chamber (36), and one end of the water pipe (31) extending into the interior of the extraction chamber (36), and the other end of the water pipe (31) being connected to a spray pipe (33); an isolation net (37), the isolation net (37) being arranged inside the water storage frame (34), and the isolation net (37) being arranged between the reflux chamber (35) and the extraction chamber (36); The regulating structure (4) further comprises: A rotating toothed disc (402) is rotatably connected to the interior of the connecting tube (401), and the rotating toothed disc (402) is meshed with the meshing gear (403).

3. An exhaust gas treatment device according to claim 2, characterized in that: A sliding groove (405) is provided on the surface of the connecting pipe (401), and the adjusting piece (404) is in contact with the inner wall of the sliding groove (405).

4. The exhaust gas treatment device according to claim 3, characterized in that: A sliding shaft (408) is slidably connected to one end of the connecting tube (401) near the sliding groove (405), and an abutment block (406) is provided at one end of the sliding shaft (408), and the abutment block (406) is in contact with the adjustment sheet (404).

5. The exhaust gas treatment device according to claim 4, characterized in that: A telescopic spring (409) is sleeved on the surface of the sliding shaft (408), one end of the telescopic spring (409) is connected to the abutment block (406), and the other end of the telescopic spring (409) is connected to the connecting pipe (401).

6. The exhaust gas treatment device according to claim 4, characterized in that: Sealing strips (407) are provided on the surfaces of the plurality of adjustment sheets (404), and the plurality of adjustment sheets (404) are in contact with each other via the sealing strips (407).

7. The exhaust gas treatment device according to claim 2, characterized in that: An extrusion block (410) is slidably connected inside the spray pipe (33), and the lower end of the extrusion block (410) abuts against the inner wall of the spraying groove (38).

8. The exhaust gas treatment device according to claim 7, characterized in that: A small hole is provided on the surface of the extrusion block (410), and the extrusion block (410) is closely attached to the inner wall of the spray pipe (33).

9. The exhaust gas treatment device according to claim 8, characterized in that: The lower end of the spray pipe (33) is slidably connected to a toothed plate (411), and the upper ends of both sides of the toothed plate (411) are provided with the extrusion blocks (410), the lower end of the toothed plate (411) is rotatably connected to an intermittent gear (415), and the intermittent gear (415) is meshed with the toothed plate (411), one end of the toothed plate (411) is connected to a return spring (416), and a limit rod (417) is provided inside the return spring (416).

10. The exhaust gas treatment device according to claim 9, characterized in that: A connecting rod (414) is provided at one end of the intermittent gear (415), a worm (412) is rotatably connected inside the water pipe (31), a connecting track (413) is sleeved on one end of the worm (412), and the other end of the connecting track (413) is sleeved on the surface of the connecting rod (414).

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