Waste gas dust treatment equipment

Abstract

The utility model relates to waste gas dust treatment equipment. The device comprises a shell, wherein an air inlet pipe is fixedly mounted on one side of the shell; the dust treatment mechanism is used for cleaning dust in waste gas; a sliding groove is formed in the top of the inner surface of the shell, a sliding rod is slidably installed on the inner surface of the sliding groove, a rack is fixedly connected to one end of the sliding rod, an incomplete gear is meshed with the outer surface of the rack, a first spring is fixedly installed at one end of the sliding rod, and two dust collection plates are rotatably installed on the outer surface of the sliding rod. A dust outlet is fixedly formed in the bottom of the shell, and a waste gas treatment box is fixedly connected to one side of the shell; a dust collection plate is matched with a first motor to drive an incomplete gear and a rack so as to enable a sliding rod to move, when the incomplete gear is separated from the rack, the sliding rod drives the dust collection plate to be pulled back by a first spring, and in the process, dust adsorbed on the dust collection plate can fall to the bottom of a shell; and dust at the bottom of the shell can be taken out and cleaned intensively by moving the baffle.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas and dust treatment, in particular to waste gas and dust treatment equipment. Background Art

[0002] Waste gas and dust treatment equipment is used to treat dust, smoke, odor and harmful substances in industrial waste gas. Its main purpose is to remove or reduce harmful substances in waste gas to meet environmental protection requirements and protect the environment and human health.

[0003] After searching, the patent document with publication number CN216537574U discloses a dust treatment equipment for waste gas treatment, which includes a treatment tower, the side wall of the treatment tower is connected to an air inlet pipe, the inner wall of the treatment tower is installed with a partition plate, the top of the partition plate is fixed with a vertical plate, the vertical plate divides the space of the treatment tower above the partition plate into an atomization chamber and a drying chamber, an atomization component is installed in the atomization chamber, an exhaust pipe is connected between the atomization chamber and the drying chamber, a waterproof and breathable membrane is installed in the exhaust pipe, and the side wall of the drying chamber is connected to an outlet pipe. Through the above method, the exhaust gas entering the atomization chamber is dust-removed under the action of water mist, enters the drying chamber through the waterproof and breathable membrane and the exhaust pipe, is adsorbed and dried under the action of the drying rod, and finally leaves the treatment tower through the outlet pipe.

[0004] Although the above-mentioned device can process the dust in the exhaust gas, in actual use, the use of spray to treat the dust cannot completely treat the dust in the exhaust gas. Some dust will continue to flow with the exhaust gas, and the untreated dust will accumulate on the waterproof breathable membrane. There is a lack of structure to clean the dust accumulated on the waterproof breathable membrane, which eventually leads to blockage of the exhaust gas and prevents it from being discharged. Summary of the invention

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that dust is not processed cleanly and accumulates, resulting in the exhaust gas being unable to continue to flow.

[0006] In order to solve the above technical problems, the utility model provides an exhaust gas and dust treatment device, comprising a shell, and an air intake pipe is fixedly installed on one side of the shell;

[0007] It also includes: a dust treatment mechanism for cleaning dust in the exhaust gas;

[0008] A slide groove is provided at the top of the inner surface of the shell, a slide rod is slidably installed on the inner surface of the slide groove, one end of the slide rod is fixedly connected to a rack, an incomplete gear is meshed on the outer surface of the rack, a first spring is fixedly installed at one end of the slide rod, two dust suction plates are rotatably installed on the outer surface of the slide rod, a dust outlet is fixedly installed at the bottom of the shell, and an exhaust gas treatment box is fixedly connected to one side of the shell.

[0009] Preferably, one end of the first spring is fixedly mounted on the side wall of the slide groove, the two incomplete gears are fixedly connected with a connecting rod, one end of the connecting rod is rotatably mounted on the inner surface of the outer shell, the other end of the connecting rod passes through the side wall of the outer shell and is fixedly connected with a first motor, and the first motor is fixedly mounted on the side wall of the outer shell.

[0010] Preferably, two connecting blocks are fixedly installed on both sides of the slide groove, four first grooves are opened on the top of the dust suction plate, and the eight connecting blocks are rotatably installed on the inner surfaces of the first grooves respectively, two second grooves are opened at the bottom of the dust suction plate, and a rotating shaft is fixedly installed on the inner surface of the second groove, two fixing plates are fixedly installed on the inner surface of the outer shell, two third grooves are opened on one side of the fixing plate, and the rotating shaft is slidably installed on the inner surface of the third groove.

[0011] Preferably, a fourth groove is provided on one side of the dust outlet, a limiting block is fixedly installed on the inner surface of the fourth groove, a baffle is slidably installed on the inner surface of the fourth groove, a limiting groove is provided on one side of the baffle, a hand hole is provided on one side of the baffle, a fifth groove is provided on the inner surface of the dust outlet, two second springs are fixedly installed on the inner surface of the fifth groove, the two second springs are jointly fixedly connected with a baffle, the baffle is slidably installed on the inner surface of the fifth groove, and the baffle is slidably installed on the inner surface of the fifth groove.

[0012] Preferably, an air outlet is provided on one side of the shell, an air outlet pipe is fixedly connected to one side of the shell, the air outlet pipe is located outside the air outlet, the other end of the air outlet pipe passes through the inner cavity of the exhaust gas treatment box, a liquid outlet is provided at the bottom of the exhaust gas treatment box, and a valve is connected to the bottom of the liquid outlet.

[0013] Preferably, a water pump is fixedly installed on the top of the exhaust gas treatment box, one end of the water pump is connected with a water suction pipe, the water suction pipe passes through the inner cavity of the exhaust gas treatment box, and the other end of the water pump is connected with a water spray pipe, the water spray pipe passes through the inner cavity of the exhaust gas treatment box.

[0014] Preferably, a second motor is fixedly installed on the top of the exhaust gas treatment box, the output shaft of the second motor is fixedly connected to a threaded rod, the outer surface of the threaded rod is rotatably installed on the top wall of the exhaust gas treatment box, the bottom of the second motor is fixedly connected to a bottom plate, the outer surface of the bottom plate is threadedly connected to a special-shaped block, the other end of the special-shaped block is fixedly connected to a vertical rod, and the top of the vertical rod is fixedly connected to a stator.

[0015] Preferably, the stator has a sleeve slidably mounted on the outer surface of the stator, the sleeve is fixedly mounted on the top wall of the exhaust gas treatment box, the inner surface of the sleeve has a supporting frame slidably mounted, the supporting frame is located on the top of the stator, activated carbon is movably mounted in the inner cavity of the supporting frame, a liquid adding pipe is fixedly mounted on one side of the exhaust gas treatment box, the liquid adding pipe passes through the inner cavity of the exhaust gas treatment box, a sixth groove is opened on one side of the exhaust gas treatment box, and a glass window is fixedly mounted on the inner surface of the sixth groove.

[0016] The above technical solution of the utility model has the following advantages compared with the prior art:

[0017] The utility model describes an exhaust gas dust treatment device, which drives the incomplete gear and the rack by cooperating with the first motor through the dust collection plate to move the slide bar. When the incomplete gear is separated from the rack, the slide bar is pulled back by the first spring with the dust collection plate. During this process, the dust absorbed on the dust collection plate will fall to the bottom of the outer shell, and the movable baffle can remove the dust at the bottom of the outer shell and clean it centrally.

[0018] The utility model discloses an exhaust gas dust treatment equipment, which can adsorb the dust remaining in the exhaust gas again through the exhaust gas treatment box. Firstly, the water at the bottom of the exhaust gas treatment box adsorbs the dust in the exhaust gas, and then the water in the exhaust gas treatment box is pumped out by a water pump and then sprayed into the exhaust gas treatment box to adsorb the dust in the exhaust gas treatment box. Finally, the dust is discharged again through the adsorption of activated carbon. The dust in the exhaust gas is adsorbed for multiple times to ensure that the discharged exhaust gas is free of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a side structural schematic diagram of the utility model;

[0022] Figure 3 This is a diagram of the internal structure of the housing in the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the fixed plate in the utility model;

[0024] Figure 5 This is a schematic diagram of the dust outlet structure in the utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the dust outlet in the utility model;

[0026] Figure 7 It is a schematic diagram of the internal structure of the exhaust gas treatment box in the utility model;

[0027] Figure 8 This is a schematic diagram of the threaded rod connection structure in the utility model;

[0028] Fig. 9 It is a schematic diagram of the internal structure of the sleeve in the utility model.

[0029] Description of the accompanying drawings: 1. housing; 11. slide; 12. air inlet; 21. slide bar; 22. rack; 23. first spring; 24. incomplete gear; 241. connecting rod; 242. first motor; 25. connecting block; 26. dust collecting plate; 261. first groove; 262. second groove; 263. rotating shaft; 27. fixing plate; 271. third groove; 28. air outlet; 281. air outlet; 31. dust outlet; 311. fourth groove; 3111. stop block; 32. baffle; 3 21. Limiting groove; 322. Hand hole; 33. Fifth groove; 331. Second spring; 332. Block; 41. Waste gas treatment box; 42. Water pump; 421. Water suction pipe; 422. Water spray pipe; 43. Second motor; 431. Threaded rod; 432. Bottom film; 433. Special-shaped block; 434. Vertical rod; 435. Sleeve; 4351. Fixed plate; 4352. Loading frame; 4353. Activated carbon; 44. Liquid outlet; 441. Valve; 45. Liquid filling pipe; 46. Sixth groove; 461. Glass window. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0031] Reference Figures 1 to 9 As shown, an exhaust gas and dust treatment device comprises a housing 1, and an air intake pipe 12 is fixedly mounted on one side of the housing;

[0032] It also includes: a dust treatment mechanism for cleaning dust in the exhaust gas;

[0033] A slide groove 11 is provided at the top of the inner surface of the shell 1, a slide rod 21 is slidably installed on the inner surface of the slide groove 11, one end of the slide rod 21 is fixedly connected to a rack 22, an outer surface of the rack 22 is meshed with an incomplete gear 24, a first spring 23 is fixedly installed at one end of the slide rod 21, two dust suction plates 26 are rotatably installed on the outer surface of the slide rod 21, a dust outlet 31 is fixedly installed at the bottom of the shell 1, and an exhaust gas treatment box 41 is fixedly connected to one side of the shell 1.

[0034] When cleaning the dust in the exhaust gas, the filter plate is usually used to filter the dust in the exhaust gas first. However, after a long period of use, dust will accumulate on the filter plate, making it difficult to clean.

[0035] During use, the exhaust gas enters the outer casing 1 through the air intake pipe 12, and is discharged after the dust in the exhaust gas is adsorbed by the dust collecting plate 26. The dust collecting plate 26 can adsorb the dust in the exhaust gas on the dust collecting plate 26. During the dust collecting process of the dust collecting plate 26, the dust will accumulate on the dust collecting plate 26. Therefore, in the process of cleaning the dust in the exhaust gas, the dust on the dust collecting plate 26 needs to be cleaned. First, the incomplete gear 24 rotates and drives the rack 22 to slide with the slide bar 21. When the rack 22 is separated from the incomplete gear 24, the first spring 23 pulls the slide bar 21 back. The dust collecting plate 26 can shake off the adsorbed dust during this movement, thereby completing the purpose of automatically cleaning the dust collecting plate 26.

[0036] Further, such as Figure 3 and Figure 4 As shown, one end of the first spring 23 is fixedly mounted on the side wall of the slide slot 11, and the two incomplete gears 24 are fixedly connected to a connecting rod 241, one end of the connecting rod 241 is rotatably mounted on the inner surface of the housing 1, and the other end of the connecting rod 241 penetrates the side wall of the housing 1 and is fixedly connected to a first motor 242, which is fixedly mounted on the side wall of the housing 1;

[0037] Two connecting blocks 25 are fixedly installed on both sides of the slide groove 11, four first grooves 261 are opened on the top of the dust collecting plate 26, and the eight connecting blocks 25 are rotatably installed on the inner surfaces of the first grooves 261 respectively. Two second grooves 262 are opened at the bottom of the dust collecting plate 26, and a rotating shaft 263 is fixedly installed on the inner surface of the second groove 262. Two fixing plates 27 are fixedly installed on the inner surface of the shell 1, and two third grooves 271 are opened on one side of the fixing plate 27, and the rotating shaft 263 is slidably installed on the inner surface of the third groove 271.

[0038] When the first motor 242 pulls the sliding bar 21, the dust collecting plate 26 between the two first grooves 261 rotates between the two connecting blocks 25. When the dust collecting plate 26 rotates, the rotating shaft 263 at the bottom of the dust collecting plate 26 slides on the inner surface of the third groove 271. The third groove 271 cooperates with the rotating shaft 263 to control the dust collecting plate 26 to move up and down and rotate slightly. In conjunction with the sliding bar 21 and the first spring 23 at the top of the dust collecting plate 26, the dust collecting plate 26 can shake during the dust collection process to concentrate on cleaning up the adsorbed dust.

[0039] Further, such as Figure 5 and Figure 6As shown, a fourth groove 311 is provided on one side of the dust outlet 31, a limiting block 3111 is fixedly installed on the inner surface of the fourth groove 311, a baffle 32 is slidably installed on the inner surface of the fourth groove 311, a limiting groove 321 is provided on one side of the baffle 32, a hand hole 322 is provided on one side of the baffle 32, 33 is provided on the inner surface of the dust outlet 31, two second springs 331 are fixedly installed on the inner surface of 33, the two second springs 331 are jointly fixedly connected with a baffle 332, the baffle 332 is slidably installed on the inner surface of the fifth groove 33, and the baffle 32 is slidably installed on the inner surface of the fifth groove 33.

[0040] After the concentrated dust is cleaned up, the concentrated dust will fall down to the bottom of the shell 1 due to the greater gravity of the accumulation. At this time, since the baffle 32 blocks the dust outlet 31, the dust will be concentrated at the bottom of the shell 1. After the baffle 32 is removed, the dust is discharged from the dust outlet 31. Before the baffle 32 is moved out, one end of the baffle 32 is in the fifth groove 33. After the baffle 32 is moved out, the second spring 331 pushes the baffle 332 to block in front of the fifth groove 33 to prevent dust from falling into the fifth groove 33, resulting in the inability to move the baffle 32 into the fifth groove 33. The design of the limit groove 321 and the limit block 3111 can prevent the baffle 32 from completely separating from the dust outlet 31, thereby preventing the baffle 32 from being lost.

[0041] Further, such as Figure 7 As shown, an air outlet 28 is provided on one side of the housing 1, and an air outlet pipe 281 is fixedly connected to one side of the housing 1. The air outlet pipe 281 is located outside the air outlet 28, and the other end of the air outlet pipe 281 passes through the inner cavity of the exhaust gas treatment box 41. A liquid outlet 44 is provided at the bottom of the exhaust gas treatment box 41, and a valve 441 is connected to the bottom of the liquid outlet 44;

[0042] A water pump 42 is fixedly installed on the top of the exhaust gas treatment box 41. One end of the water pump 42 is connected with a water suction pipe 421, and the water suction pipe 421 passes through the inner cavity of the exhaust gas treatment box 41. The other end of the water pump 42 is connected with a water spray pipe 422, and the water spray pipe 422 passes through the inner cavity of the exhaust gas treatment box 41.

[0043] There may be some dust in the exhaust gas passing through the dust collection plate 26 in the outer shell 1 that is not adsorbed. In order to further clean the dust in the exhaust gas, the exhaust gas is allowed to pass through the exhaust pipe 281 into the exhaust gas treatment box 41. There is water in the exhaust gas treatment box 41, and the bottom of the exhaust pipe 281 is located below the water surface. The dust in the exhaust gas is first adsorbed by the water and then enters the exhaust gas treatment box 41. Since there may be bubbles when the exhaust pipe 281 is discharged into the water, and some dust still exists in the bubbles, the water in the exhaust gas treatment box 41 is pumped out by the water pump 42 and then discharged from the top of the inner cavity of the exhaust gas treatment box 41 in the form of mist, and the dust in the exhaust gas treatment box 41 is adsorbed and cleaned again.

[0044] Further, such as Figure 8 and Fig. 9 As shown, a second motor 43 is fixedly installed on the top of the exhaust gas treatment box 41, and a threaded rod 431 is fixedly connected to the output shaft of the second motor 43. The outer surface of the threaded rod 431 is rotatably installed on the top wall of the exhaust gas treatment box 41, and a bottom plate 432 is fixedly connected to the bottom of the second motor 43. A special-shaped block 433 is threadedly connected to the outer surface of the bottom plate 432. The other end of the special-shaped block 433 is fixedly connected to a vertical rod 434, and a fixed plate 4351 is fixedly connected to the top of the vertical rod 434;

[0045] The fixed plate 4351 has a sleeve 435 slidably installed on its outer surface, the sleeve 435 is fixedly installed on the top wall of the exhaust gas treatment box 41, a supporting frame 4352 is slidably installed on the inner surface of the sleeve 435, the supporting frame 4352 is located on the top of the fixed plate 4351, and activated carbon 4353 is movably installed in the inner cavity of the supporting frame 4352, a liquid adding pipe 45 is fixedly installed on one side of the exhaust gas treatment box 41, and the liquid adding pipe 45 passes through the inner cavity of the exhaust gas treatment box 41, a sixth groove 46 is opened on one side of the exhaust gas treatment box 41, and a glass window 461 is fixedly installed on the inner surface of the sixth groove 46.

[0046] Since the exhaust pipe 281 exhausts all the way to the exhaust treatment box 41, the exhaust in the exhaust treatment box 41 needs to be discharged, and the exhaust is discharged through the sleeve 435. The fixed plate 4351 and the supporting frame 4352 are both breathable. During the discharge process, the exhaust passes through the activated carbon 4353, and the activated carbon 4353 adsorbs the dust in the exhaust again to ensure that the dust in the exhaust is cleaned. After a period of use, the activated carbon 4353 needs to be replaced. The second motor 43 drives the threaded rod 431 to rotate, which can drive the vertical rod 434 to move up and down. When the vertical rod 434 moves up, it can drive the fixed plate 4351 to push the supporting frame 4352 to move. After the supporting frame 4352 is withdrawn from the sleeve 435, the activated carbon 4353 in the supporting frame 4352 can be taken out for replacement;

[0047] When treating dust in the exhaust gas, it is necessary to replace the water in the exhaust gas treatment box 41 in time. First, open the valve 441 to discharge the sewage in the exhaust gas treatment box 41, and then add water to the exhaust gas treatment box 41 through the liquid adding pipe 45. The height of the water in the exhaust gas treatment box 41 exceeds the bottom end of the outlet pipe 281 and is not higher than the bottom surface of the outlet 28, and is observed through the glass window 461.

[0048] Working principle: First, the exhaust gas containing dust enters the outer shell 1 through the air inlet pipe 12, and the exhaust gas first passes through the dust collection plate 26. The dust collection plate 26 absorbs part of the dust and shakes under the drive of the first motor 242 to shake off the absorbed dust, so that the dust falls on the bottom of the outer shell 1. When it is necessary to clean the dust at the bottom of the outer shell 1, the baffle 32 is removed from the fourth groove 311 and the fifth groove 33, and the dust is discharged through the dust outlet 31.

[0049] Some of the unabsorbed dust enters the exhaust gas treatment box 41 through the exhaust pipe 281, where the dust is first adsorbed by water and then adsorbed again by the activated carbon 4353 when flowing out of the exhaust gas treatment box 41. The dust in the exhaust gas is treated multiple times to ensure that the dust in the exhaust gas is cleanly treated.

[0050] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An exhaust gas and dust treatment device, comprising a housing (1), an air intake pipe (12) being fixedly mounted on one side of the housing (1); Also includes: Dust treatment mechanism, used to clean dust in exhaust gas; The invention is characterized in that: a slide groove (11) is provided at the top of the inner surface of the shell (1), a slide rod (21) is slidably installed on the inner surface of the slide groove (11), one end of the slide rod (21) is fixedly connected to a rack (22), the outer surface of the rack (22) is meshed with an incomplete gear (24), one end of the slide rod (21) is fixedly installed with a first spring (23), the outer surface of the slide rod (21) is rotatably installed with two dust suction plates (26), the bottom of the shell (1) is fixedly installed with a dust outlet (31), and one side of the shell (1) is fixedly connected to an exhaust gas treatment box (41).

2. The waste gas and dust treatment equipment according to claim 1, characterized in that: One end of the first spring (23) is fixedly mounted on the side wall of the slide groove (11); the two incomplete gears (24) are fixedly connected to a connecting rod (241); one end of the connecting rod (241) is rotatably mounted on the inner surface of the housing (1); the other end of the connecting rod (241) passes through the side wall of the housing (1) and is fixedly connected to a first motor (242); and the first motor (242) is fixedly mounted on the side wall of the housing (1).

3. The exhaust gas and dust treatment equipment according to claim 2 is characterized in that: Two connecting blocks (25) are fixedly mounted on both sides of the slide groove (11); four first grooves (261) are formed on the top of the dust collecting plate (26); eight connecting blocks (25) are rotatably mounted on the inner surfaces of the first grooves (261); two second grooves (262) are formed on the bottom of the dust collecting plate (26); a rotating shaft (263) is fixedly mounted on the inner surface of the second groove (262); two fixing plates (27) are fixedly mounted on the inner surface of the housing (1); two third grooves (271) are formed on one side of the fixing plate (27); and the rotating shaft (263) is slidably mounted on the inner surface of the third groove (271).

4. The waste gas and dust treatment equipment according to claim 3 is characterized in that: A fourth groove (311) is provided on one side of the dust outlet (31), a limit block (3111) is fixedly mounted on the inner surface of the fourth groove (311), a baffle (32) is slidably mounted on the inner surface of the fourth groove (311), a limit groove (321) is provided on one side of the baffle (32), a hand hole (322) is provided on one side of the baffle (32), a fifth groove (33) is provided on the inner surface of the dust outlet (31), two second springs (331) are fixedly mounted on the inner surface of the fifth groove (33), the two second springs (331) are fixedly connected to a baffle (332), the baffle (332) is slidably mounted on the inner surface of the fifth groove (33), and the baffle (32) is slidably mounted on the inner surface of the fifth groove (33).

5. The waste gas and dust treatment equipment according to claim 4, characterized in that: An air outlet (28) is provided on one side of the housing (1), an air outlet pipe (281) is fixedly connected to one side of the housing (1), the air outlet pipe (281) is located outside the air outlet (28), the other end of the air outlet pipe (281) passes through the inner cavity of the exhaust gas treatment box (41), a liquid outlet (44) is provided at the bottom of the exhaust gas treatment box (41), and a valve (441) is passed through the bottom of the liquid outlet (44).

6. The exhaust gas and dust treatment equipment according to claim 5, characterized in that: A water pump (42) is fixedly mounted on the top of the waste gas treatment box (41); one end of the water pump (42) is connected to a water suction pipe (421), the water suction pipe (421) passes through the inner cavity of the waste gas treatment box (41); the other end of the water pump (42) is connected to a water spray pipe (422), the water spray pipe (422) passes through the inner cavity of the waste gas treatment box (41).

7. The waste gas and dust treatment equipment according to claim 6, characterized in that: A second motor (43) is fixedly mounted on the top of the exhaust gas treatment box (41); a threaded rod (431) is fixedly connected to the output shaft of the second motor (43); the outer surface of the threaded rod (431) is rotatably mounted on the top wall of the exhaust gas treatment box (41); a bottom plate (432) is fixedly connected to the bottom of the second motor (43); a special-shaped block (433) is threadedly connected to the outer surface of the bottom plate (432); the other end of the special-shaped block (433) is fixedly connected to a vertical rod (434); and the top of the vertical rod (434) is fixedly connected to a fixed plate (4351).

8. The waste gas and dust treatment equipment according to claim 7, characterized in that: The fixed plate (4351) has a sleeve (435) slidably mounted on the outer surface of the fixed plate (4351), the sleeve (435) is fixedly mounted on the top wall of the exhaust gas treatment box (41), the inner surface of the sleeve (435) has a supporting frame (4352) slidably mounted, the supporting frame (4352) is located on the top of the fixed plate (4351), and activated carbon (4353) is movably mounted in the inner cavity of the supporting frame (4352), a liquid adding pipe (45) is fixedly mounted on one side of the exhaust gas treatment box (41), the liquid adding pipe (45) passes through the inner cavity of the exhaust gas treatment box (41), and a sixth groove (46) is opened on one side of the exhaust gas treatment box (41), and a glass window (461) is fixedly mounted on the inner surface of the sixth groove (46).

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