Coated tail gas multi-stage purification treatment device

Abstract

The invention provides a multi-stage purification treatment device for coated tail gas, and relates to the technical field of tail gas purification. The cladding tail gas multi-stage purification treatment device comprises a gas inlet pipe, the right end of the gas inlet pipe is fixedly connected with a purification box, the right side of the purification box is fixedly connected with a gas outlet pipe, the inner side of the purification box is provided with a catalyst carrier, a filter frame and a filter unit, and the filter unit comprises two rotating rods; and the two rotating rods are rotationally connected to the inner side of the purification box, the outer sides of the upper ends of the two rotating rods are fixedly connected with first belt wheels, and a first belt is arranged between the two first belt wheels. By arranging a bidirectional screw rod, a sliding groove, a sliding block, a connecting block, a moving plate, a side plate, a moving rod, scraping plates, an aluminum frame, a gear piece, a toothed plate, a cam and a connecting plate, the scraping plates on the front side and the rear side can be conveniently controlled to repeatedly move in opposite directions, the scraping plates scatter large-particle rotating shafts attached to the surface of a filter screen, and the filter screen is prevented from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas purification, and specifically to a multi-stage tail gas purification treatment device. Background Art

[0002] Exhaust purification refers to the use of a series of technologies and devices to reduce and remove harmful substances in automobile exhaust to reduce its impact on the environment and human health. In order to solve the problem of air pollution, especially automobile exhaust treatment, a variety of technologies and methods have emerged, among which the three-way catalytic converter is the most critical off-board purification device. It converts harmful gases CO, HC and NOx into harmless carbon dioxide, water and nitrogen through oxidation and reduction, thereby purifying automobile exhaust.

[0003] A filter is set on the inner side of the exhaust purification device to facilitate the filtering of large particles of impurities in the exhaust gas, so as to reduce the impurities in the exhaust gas and avoid pollution to the environment. When the content of large particles of impurities is high, the load on the filter increases. Since the direction of the exhaust gas flow is fixed, the large particles directly adhere to the filter, which makes the filter easy to be blocked, affecting the exhaust gas filtering effect. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a multi-stage exhaust gas purification treatment device that covers the exhaust gas, thereby solving the problem that the filter screen is easily clogged by large particles of impurities during exhaust gas purification.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-stage exhaust gas purification treatment device, comprising an air intake pipe, a purification box is fixedly connected to the right end of the air intake pipe, an air outlet pipe is fixedly connected to the right side of the purification box, and a catalyst carrier, a filter frame and a filter unit are respectively arranged on the inner side of the purification box;

[0008] The filter unit comprises two rotating rods, both of which are rotatably connected to the inner side of the purification box, the outer sides of the upper ends of the two rotating rods are fixedly connected with pulleys, a belt is arranged between the two pulleys, a rotating roller is fixedly connected to the outer side of the rotating rod and located on the inner side of the purification box, a spoiler is fixedly connected to the outer side of the rotating roller, a scraper is arranged on the outer side of the front and rear ends of the filter frame, the outer sides of the scrapers on the front and rear sides are fixedly connected with moving rods, the outer ends of the moving rods are fixedly connected with side plates, the outer sides of the upper ends of the side plates on the front and rear sides are fixedly connected with moving plates, two fixed blocks are fixedly connected to the upper side of the purification box, a bidirectional screw is rotatably connected between the two fixed blocks, and the purification box The upper side of the purifier box is provided with a sliding groove, and the inner sides of the front and rear ends of the sliding groove are slidably connected with a sliding block, the upper side of the sliding block is fixedly connected with a connecting block, and the connecting block is fixedly connected to the moving plate, and the outer side of the front end of the bidirectional screw is fixedly connected with a gear part. The upper side of the purification box is provided with a moving groove, the inner side of the moving groove is slidably connected with a moving block, the upper side of the moving block is fixedly connected with a toothed plate, the upper side of the purification box is fixedly connected with a mounting block and a fixed rod, the front side of the mounting block is rotatably connected with a control rod, the front end of the control rod is fixedly connected with a cam, the outer side of the cam is rotatably connected with a connecting plate, the connecting plate is rotatably connected to the toothed plate, and the rear side of the mounting block is fixedly connected with a motor.

[0009] Preferably, the upper end of the fixed rod is fixedly connected to a top plate, the lower side of the top plate is rotatably connected to a rotating shaft, the lower end of the rotating shaft is fixedly connected to a second bevel gear, the outer side of the bidirectional screw is fixedly connected to a first bevel gear, the outer side of the rotating shaft and the outer side of one of the rotating rods are both fixedly connected to a second pulley, and a second belt is provided between the two second pulleys, so that the bidirectional screw can control the rotation of the rotating rod.

[0010] Preferably, the bevel gear one is meshingly connected with the bevel gear two.

[0011] Preferably, the upper side of the right end of the purification box is fixedly connected to a fixed box, a piston plate is arranged inside the fixed box, a push rod is fixedly connected to the outer side of the piston plate, the push rod is fixedly connected to the movable plate, a cooling channel is fixedly connected to the inner side of the right end of the purification box, a water inlet pipe is fixedly connected between the cooling channel and the fixed box, a water outlet pipe is fixedly connected to the lower side of the cooling channel, and a water pumping pipe is fixedly connected to the upper side of the fixed box. It is convenient to pass the coolant into the cooling channel.

[0012] Preferably, one-way valves are provided on the outsides of the water pumping pipe and the water inlet pipe.

[0013] Preferably, the cooling channel is arranged in a serpentine structure.

[0014] Preferably, the tooth plate is meshingly connected to the gear member.

[0015] Preferably, opposite threads are arranged at both ends of the bidirectional screw, and the two ends of the bidirectional screw are respectively threadedly connected to the front and rear connecting blocks, so that the front and rear connecting blocks move toward each other.

[0016] Preferably, a protective cover is fixedly connected to the upper side of the purification box, and the movable plate is slidably connected to the protective cover, so as to facilitate the protection of internal components.

[0017] (III) Beneficial effects

[0018] The present invention provides a multi-stage tail gas purification treatment device, which has the following beneficial effects:

[0019] 1. By setting up a bidirectional screw, a slide, a slider, a connecting block, a moving plate, a side plate, a moving rod, a scraper, an aluminum frame, a gear, a tooth plate, a cam and a connecting plate, it is easy to control the front and rear scrapers to move toward each other repeatedly, so that the scrapers can break up the large particles adhering to the surface of the filter to avoid clogging of the filter.

[0020] 2. By arranging the rotating rod, the rotating roller, the spoiler, the rotating shaft, the bidirectional screw, the bevel gear 1 and the bevel gear 2, it is convenient to control the rotation of the spoiler, so that the exhaust gas is stirred, the catalytic effect of the exhaust gas and the impurities are evenly distributed, which is convenient for subsequent filtering.

[0021] 3. By arranging a fixed box, a piston plate, a cooling channel, a push rod, a water inlet pipe, a water outlet pipe, a movable plate, a water outlet pipe and a water pumping pipe, it is convenient to introduce a coolant into the cooling channel when discharging the exhaust gas, so as to reduce the temperature of the exhaust gas and discharge it, thereby avoiding excessively high exhaust temperature and pollution of the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the overall three-dimensional structure diagram of the present invention;

[0023] Figure 2 It is a partially cutaway three-dimensional structural diagram of the present invention;

[0024] Figure 3 The three-dimensional structure diagram of the present invention without the air pipe and the protective cover;

[0025] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0026] Figure 5 for Figure 3 The enlarged view of point B in the middle;

[0027] Figure 6 It is a side cross-sectional stereoscopic structural diagram of the present invention;

[0028] Figure 7 It is a three-dimensional structural diagram of the filter unit in the present invention.

[0029] Among them, 1. air inlet pipe; 2. purification box; 3. air outlet pipe; 4. protective cover; 5. filter unit; 501. rotating rod; 502. rotating roller; 503. spoiler; 504. slideway; 505. slider; 506. connecting block; 507. fixing block; 508. bidirectional screw; 509. gear; 510. tooth plate; 511. connecting plate; 512. cam; 513. mounting block; 514. control rod; 515. motor; 516. pulley 1; 517. belt 1; 518 , bevel gear one; 519, fixed rod; 520, top plate; 521, bevel gear two; 522, pulley two; 523, belt two; 524, moving plate; 525, side plate; 526, moving rod; 527, scraper; 528, fixed box; 529, water inlet pipe; 530, cooling channel; 531, water outlet pipe; 532, piston plate; 533, push rod; 534, moving groove; 535, moving block; 536, rotating shaft; 537, water pumping pipe; 6, catalyst carrier; 7, filter frame. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1-7 As shown, a multi-stage exhaust gas purification treatment device is wrapped, including an intake pipe 1, the right end of the intake pipe 1 is fixedly connected to a purification box 2, the right side of the purification box 2 is fixedly connected to an exhaust pipe 3, the inner side of the purification box 2 is respectively provided with a catalyst carrier 6, a filter frame 7 and a filter unit 5, the upper side of the purification box 2 is fixedly connected to a protective cover 4, the movable plate 524 is slidably connected to the protective cover 4, wherein the protective cover 4 is provided to protect the internal components, the upper end of the water extraction pipe 537 passes through the upper side of the protective cover 4, when in use, the exhaust gas is catalyzed by the catalyst carrier 6, and the impurities in the exhaust gas are filtered and treated by the filter frame 7.

[0033] The filter unit 5 includes two rotating rods 501, and the two rotating rods 501 are rotatably connected to the inner side of the purification box 2. The outer sides of the upper ends of the two rotating rods 501 are fixedly connected with pulleys 516, and a belt 517 is arranged between the two pulleys 516. The outer side of the rotating rod 501 and the inner side of the purification box 2 is fixedly connected with a roller 502, and the outer side of the roller 502 is fixedly connected with a spoiler 503. The outer sides of the front and rear ends of the filter frame 7 are provided with scrapers 527, and the outer sides of the front and rear scrapers 527 are fixedly connected with moving rods 526. The outer ends of the moving rods 526 are fixedly connected with side plates 525, and the outer sides of the upper ends of the front and rear side plates 525 are fixedly connected with moving plates 524. The upper side of the purification box 2 is fixedly connected with two fixed blocks 507, and the two fixed blocks 507 are fixedly connected with the two fixed blocks. A bidirectional screw 508 is rotatably connected between the block and the fixed block 507, a slide groove 504 is provided on the upper side of the purification box 2, and the inner sides of the front and rear ends of the slide groove 504 are slidably connected with sliders 505, the upper side of the slider 505 is fixedly connected with a connecting block 506, the connecting block 506 is fixedly connected to the moving plate 524, and the outer side of the front end of the bidirectional screw 508 is fixedly connected with a gear member 509, a moving groove 534 is provided on the upper side of the purification box 2, a moving block 535 is slidably connected to the inner side of the moving groove 534, and a toothed plate 510 is fixedly connected to the upper side of the moving block 535, a mounting block 513 and a fixed rod 519 are fixedly connected to the upper side of the purification box 2, the front side of the mounting block 513 is rotatably connected with a control rod 514, and the front end of the control rod 514 is fixedly connected to a cam 512, the outer side of the cam 512 is rotatably connected with a connecting plate 511, the connecting plate 511 is rotatably connected with the tooth plate 510, the rear side of the mounting block 513 is fixedly connected with a motor 515, the upper end of the fixing rod 519 is fixedly connected with a top plate 520, the lower side of the top plate 520 is rotatably connected with a rotating shaft 536, the lower end of the rotating shaft 536 is fixedly connected with a bevel gear 2 521, the outer side of the bidirectional screw 508 is fixedly connected with a bevel gear 1 518, the outer side of the rotating shaft 536 and the outer side of one of the rotating rods 501 are fixedly connected with a pulley 2 522, a belt 2 523 is arranged between the two pulleys 2 522, the bevel gear 1 518 is meshedly connected with the bevel gear 2 521, the tooth plate 510 is meshedly connected with the gear member 509, both ends of the bidirectional screw 508 Reverse threads are provided, and the two ends of the bidirectional screw 508 are respectively threadedly connected with the front and rear connecting blocks 506. When in use, the motor 515 is started, the motor 515 drives the control rod 514 to rotate, the control rod 514 drives the cam 512 to rotate, the cam 512 drives the connecting plate 511 to rotate, the connecting plate 511 drives the tooth plate 510 to move left and right repeatedly, the tooth plate 510 drives the gear part 509 to rotate, the gear part 509 drives the bidirectional screw 508 to rotate repeatedly, the bidirectional screw 508 drives the connecting blocks 506 on the front and rear sides to move repeatedly towards each other, the connecting block 506 drives the moving plate 524 to move, the moving plate 524 drives the side plate 525 to move, the side plate 525 drives the moving rod 526 to move, and the moving rod 526 drives the scraper 527 to move.The scrapers 527 on the front and rear sides scrape the impurities on the surface of the filter frame 7 to avoid clogging of the filter screen. At the same time, when the bidirectional screw 508 rotates, the bevel gear 1 518 is controlled to rotate, and the bevel gear 1 518 drives the bevel gear 2 521 to rotate, and the bevel gear 2 521 drives the rotating shaft 536, and the rotating shaft 536 drives the pulley 2 522 to rotate. Under the action of the belt 2 523, it is convenient for the rotating shaft 536 to drive the rotating rod 501 to rotate, and the rotating rod 501 drives the rotating roller 502 to rotate, and the rotating roller 502 drives the spoiler 503 to rotate, so that the spoiler 503 drives the tail gas to stir. The stirring can make the gas more evenly distributed on the catalyst surface, ensure the maximum contact, increase the catalytic effect of the catalyst carrier 6 on the tail gas, and stir the large particles, so that the impurities attached to the surface of the filter frame 7 are stirred to avoid clogging of the filter frame 7.

[0034] Embodiment 2:

[0035] like Figure 1-7 As shown, a multi-stage exhaust gas purification treatment device is wrapped, including an intake pipe 1, the right end of the intake pipe 1 is fixedly connected to a purification box 2, the right side of the purification box 2 is fixedly connected to an exhaust pipe 3, the inner side of the purification box 2 is respectively provided with a catalyst carrier 6, a filter frame 7 and a filter unit 5, the upper side of the purification box 2 is fixedly connected to a protective cover 4, the movable plate 524 is slidably connected to the protective cover 4, wherein the protective cover 4 is provided to protect the internal components, the upper end of the water extraction pipe 537 passes through the upper side of the protective cover 4, the water extraction pipe 537 is connected to an external coolant storage box, when in use, the exhaust gas is catalyzed by the catalyst carrier 6, and the impurities in the exhaust gas are filtered and treated by the filter frame 7.

[0036] The filter unit 5 includes two rotating rods 501, and the two rotating rods 501 are rotatably connected to the inner side of the purification box 2. The outer sides of the upper ends of the two rotating rods 501 are fixedly connected with pulleys 516, and a belt 517 is arranged between the two pulleys 516. The outer side of the rotating rod 501 and the inner side of the purification box 2 is fixedly connected with a roller 502, and the outer side of the roller 502 is fixedly connected with a spoiler 503. The outer sides of the front and rear ends of the filter frame 7 are provided with scrapers 527, and the outer sides of the front and rear scrapers 527 are fixedly connected with moving rods 526. The outer ends of the moving rods 526 are fixedly connected with side plates 525, and the outer sides of the upper ends of the front and rear side plates 525 are fixedly connected with moving plates 524. The upper side of the purification box 2 is fixedly connected with two fixed blocks 507, and the two fixed blocks 507 are fixedly connected with the two fixed blocks. A bidirectional screw 508 is rotatably connected between the block and the fixed block 507, a slide groove 504 is provided on the upper side of the purification box 2, and the inner sides of the front and rear ends of the slide groove 504 are slidably connected with sliders 505, the upper side of the slider 505 is fixedly connected with a connecting block 506, the connecting block 506 is fixedly connected to the moving plate 524, and the outer side of the front end of the bidirectional screw 508 is fixedly connected with a gear member 509, a moving groove 534 is provided on the upper side of the purification box 2, a moving block 535 is slidably connected to the inner side of the moving groove 534, and a toothed plate 510 is fixedly connected to the upper side of the moving block 535, a mounting block 513 and a fixed rod 519 are fixedly connected to the upper side of the purification box 2, the front side of the mounting block 513 is rotatably connected with a control rod 514, and the front end of the control rod 514 is fixedly connected to a cam 512, the outer side of the cam 512 is rotatably connected with a connecting plate 511, the connecting plate 511 is rotatably connected with the tooth plate 510, the rear side of the mounting block 513 is fixedly connected with a motor 515, the upper end of the fixing rod 519 is fixedly connected with a top plate 520, the lower side of the top plate 520 is rotatably connected with a rotating shaft 536, the lower end of the rotating shaft 536 is fixedly connected with a bevel gear 2 521, the outer side of the bidirectional screw 508 is fixedly connected with a bevel gear 1 518, the outer side of the rotating shaft 536 and the outer side of one of the rotating rods 501 are fixedly connected with a pulley 2 522, a belt 2 523 is arranged between the two pulleys 2 522, the bevel gear 1 518 is meshedly connected with the bevel gear 2 521, the tooth plate 510 is meshedly connected with the gear member 509, both ends of the bidirectional screw 508 Reverse threads are provided, and the two ends of the bidirectional screw 508 are respectively threadedly connected with the front and rear connecting blocks 506. When in use, the motor 515 is started, the motor 515 drives the control rod 514 to rotate, the control rod 514 drives the cam 512 to rotate, the cam 512 drives the connecting plate 511 to rotate, the connecting plate 511 drives the tooth plate 510 to move left and right repeatedly, the tooth plate 510 drives the gear part 509 to rotate, the gear part 509 drives the bidirectional screw 508 to rotate repeatedly, the bidirectional screw 508 drives the connecting blocks 506 on the front and rear sides to move repeatedly towards each other, the connecting block 506 drives the moving plate 524 to move, the moving plate 524 drives the side plate 525 to move, the side plate 525 drives the moving rod 526 to move, and the moving rod 526 drives the scraper 527 to move.The scrapers 527 on the front and rear sides scrape the impurities on the surface of the filter frame 7 to avoid clogging of the filter screen. At the same time, when the bidirectional screw 508 rotates, the bevel gear 1 518 is controlled to rotate, and the bevel gear 1 518 drives the bevel gear 2 521 to rotate, and the bevel gear 2 521 drives the rotating shaft 536, and the rotating shaft 536 drives the pulley 2 522 to rotate. Under the action of the belt 2 523, it is convenient for the rotating shaft 536 to drive the rotating rod 501 to rotate, and the rotating rod 501 drives the rotating roller 502 to rotate, and the rotating roller 502 drives the spoiler 503 to rotate, so that the spoiler 503 drives the tail gas to stir. The stirring can make the gas more evenly distributed on the catalyst surface, ensure the maximum contact, increase the catalytic effect of the catalyst carrier 6 on the tail gas, and stir the large particles, so that the impurities attached to the surface of the filter frame 7 are stirred to avoid clogging of the filter frame 7.

[0037] The upper side of the right end of the purification box 2 is fixedly connected with a fixed box 528, a piston plate 532 is arranged on the inner side of the fixed box 528, a push rod 533 is fixedly connected to the outer side of the piston plate 532, and the push rod 533 is fixedly connected to the movable plate 524. The inner side of the right end of the purification box 2 is fixedly connected with a cooling channel 530, a water inlet pipe 529 is fixedly connected between the cooling channel 530 and the fixed box 528, a water outlet pipe 531 is fixedly connected to the lower side of the cooling channel 530, a water pumping pipe 537 is fixedly connected to the upper side of the fixed box 528, and a one-way valve is arranged on the outer side of the water pumping pipe 537 and the water inlet pipe 529. The cooling channel 530 is a serpentine structure. 7 is connected to the external coolant storage box, the external coolant enters the fixed box 528 through the pumping pipe 537, and then enters the cooling channel 530 through the water inlet pipe 529, and the flow direction of the coolant is made single through the one-way valve. During the movement of the movable plate 524, the movable plate 524 drives the push rod 533 to move repeatedly, and the push rod 533 drives the piston plate 532 to move repeatedly in the fixed box 528. Under the action of the pumping pipe 537 and the water inlet pipe 529, the coolant is easily passed into the cooling channel 530 to flow, and through the outlet pipe 531, the coolant is conveniently discharged, so that the discharged exhaust gas is cooled down, and the high-temperature exhaust gas is prevented from polluting the environment.

[0038] Working principle: When in use, the staff first passes the exhaust gas into the purification box 2 through the intake pipe 1, then catalyzes the exhaust gas through the catalyst carrier 6, and filters the exhaust gas through the filter frame 7, and at the same time starts the motor 515 to control the rotation of the cam 512. Under the action of the connecting plate 511, the tooth plate 510, and the gear part 509, it is convenient to repeatedly rotate the bidirectional screw 508, and it is convenient to control the front and rear connecting blocks 506 to move toward each other. Under the action of the moving plate 524, the side plate 525, and the moving rod 526, it is convenient to control the front and rear scrapers 527 to scrape impurities on the surface of the filter frame 7 to avoid blockage. At the same time, the bevel gear 2 521, the bevel gear 1 518, the pulley 2 522 and the belt 2 523 are convenient to control the rotation of the spoiler 503 on the roller 502, so as to stir the exhaust gas and disperse the impurities attached to the surface of the filter frame 7 to avoid blockage.

[0039] During the exhaust gas emission process, the movable plate 524 drives the push rod 533 to move forward and backward. Under the action of the piston plate 532, the pumping pipe 537 and the water inlet pipe 529, it is convenient to introduce the coolant into the cooling channel 530, so as to cool the exhaust gas and avoid the exhaust gas temperature being too high to pollute the environment.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage exhaust gas purification treatment device, comprising an intake pipe (1), characterized in that: The right end of the air inlet pipe (1) is fixedly connected to a purification box (2), the right side of the purification box (2) is fixedly connected to an air outlet pipe (3), and the inner side of the purification box (2) is respectively provided with a catalyst carrier (6), a filter frame (7) and a filter unit (5); The filter unit (5) comprises two rotating rods (501), the two rotating rods (501) are rotatably connected to the inner side of the purification box (2), the outer sides of the upper ends of the two rotating rods (501) are fixedly connected to a pulley (516), a belt (517) is arranged between the two pulleys (516), a roller (502) is fixedly connected to the outer side of the rotating rod (501) and located on the inner side of the purification box (2), a spoiler (503) is fixedly connected to the outer side of the roller (502), and the filter frame (7) has a plurality of filter elements at the front and rear ends. A scraper (527) is arranged on the outside, and a moving rod (526) is fixedly connected to the outside of the scraper (527) on both the front and rear sides, and the outer end of the moving rod (526) is fixedly connected to the side plate (525), and the outer sides of the upper ends of the side plates (525) on both the front and rear sides are fixedly connected to the moving plate (524), and two fixed blocks (507) are fixedly connected to the upper side of the purification box (2), and a bidirectional screw (508) is rotatably connected between the two fixed blocks (507), and a slide groove (508) is provided on the upper side of the purification box (2). 504), the inner sides of the front and rear ends of the slide groove (504) are slidably connected with sliders (505), the upper side of the slider (505) is fixedly connected with a connecting block (506), the connecting block (506) is fixedly connected to the moving plate (524), the outer side of the front end of the bidirectional screw (508) is fixedly connected with a gear member (509), the upper side of the purification box (2) is provided with a moving groove (534), the inner side of the moving groove (534) is slidably connected with a moving block (535), the moving block (535) is fixedly connected to the outer side of the moving groove (534), and the moving block (535) is fixedly connected to the moving plate (524). A tooth plate (510) is fixedly connected to the upper side, a mounting block (513) and a fixing rod (519) are fixedly connected to the upper side of the purification box (2), a control rod (514) is rotatably connected to the front side of the mounting block (513), a cam (512) is fixedly connected to the front end of the control rod (514), a connecting plate (511) is rotatably connected to the outer side of the cam (512), the connecting plate (511) is rotatably connected to the tooth plate (510), and a motor (515) is fixedly connected to the rear side of the mounting block (513).

2. The multi-stage purification treatment device for coated tail gas according to claim 1, characterized in that: The upper end of the fixed rod (519) is fixedly connected to a top plate (520), the lower side of the top plate (520) is rotatably connected to a rotating shaft (536), the lower end of the rotating shaft (536) is fixedly connected to a bevel gear 2 (521), the outer side of the bidirectional screw (508) is fixedly connected to a bevel gear 1 (518), the outer side of the rotating shaft (536) and the outer side of one of the rotating rods (501) are fixedly connected to a pulley 2 (522), and a belt 2 (523) is arranged between the two pulleys 2 (522).

3. A multi-stage purification treatment device for coated tail gas according to claim 2, characterized in that: The bevel gear one (518) is meshedly connected with the bevel gear two (521).

4. The multi-stage purification treatment device for coated tail gas according to claim 1, characterized in that: The upper side of the right end of the purification box (2) is fixedly connected to a fixed box (528), the inner side of the fixed box (528) is provided with a piston plate (532), the outer side of the piston plate (532) is fixedly connected to a push rod (533), the push rod (533) is fixedly connected to the movable plate (524), the inner side of the right end of the purification box (2) is fixedly connected to a cooling channel (530), a water inlet pipe (529) is fixedly connected between the cooling channel (530) and the fixed box (528), the lower side of the cooling channel (530) is fixedly connected to a water outlet pipe (531), and the upper side of the fixed box (528) is fixedly connected to a water pumping pipe (537).

5. The multi-stage purification treatment device for coated tail gas according to claim 4 is characterized in that: One-way valves are provided on the outsides of the water extraction pipe (537) and the water inlet pipe (529).

6. The multi-stage purification treatment device for coated tail gas according to claim 4 is characterized in that: The cooling channel (530) is arranged in a serpentine structure.

7. The multi-stage purification treatment device for coated tail gas according to claim 1, characterized in that: The toothed plate (510) is meshingly connected with the gear member (509).

8. The multi-stage purification treatment device for coated tail gas according to claim 1, characterized in that: The two ends of the bidirectional screw (508) are provided with opposite threads, and the two ends of the bidirectional screw (508) are respectively threadedly connected to the front and rear connecting blocks (506).

9. The multi-stage purification treatment device for coated tail gas according to claim 1, characterized in that: A protective cover (4) is fixedly connected to the upper side of the purification box (2), and the movable plate (524) is slidably connected to the protective cover (4).

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