A special impregnated charcoal production line tail gas treatment device

Abstract

This invention discloses a tail gas treatment device for a special impregnated carbon production line, relating to the field of tail gas treatment. It includes: a device housing and an air inlet pipe installed on the outside of the housing, with one end of the air inlet pipe extending to the inside of the housing; a drainage pump for conveying dilute sulfuric acid solution installed on the top of the housing; a spray frame installed on the inside of the housing, with the top of the spray frame connected to the pipe of the drainage pump; a water injection pipe installed on the outside of the housing; and a sewage discharge pipe installed at the bottom of the housing. It also includes: a filtration mechanism for filtering fine particles in the tail gas, comprising an arc-shaped filter screen installed on the inside of the housing. This invention, through the filtration mechanism, allows tail gas to be injected into water inside the housing, causing larger particles in the tail gas to remain in the water. The filtered tail gas can then be filtered again through the arc-shaped filter screen, facilitating the treatment of finer particles and thus improving the tail gas treatment efficiency.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas treatment, specifically to an exhaust gas treatment device for a special impregnated carbon production line. Background Technology

[0002] Special impregnated carbon is a high-performance adsorbent material that has undergone special chemical treatment. It belongs to the category of special activated carbon. It is made by loading specific chemical substances onto a highly adsorbent activated carbon carrier, thereby giving it the ability to efficiently adsorb, catalytically decompose, or chemically absorb specific pollutants. It is specially used for specific toxic and harmful gases, heavy metals, or microorganisms that are difficult to remove efficiently by ordinary activated carbon. It is a special adsorbent medium in the fields of industrial environmental protection, protection, and water treatment.

[0003] During the processing of special impregnated charcoal, thermal volatilization and decomposition reactions occur during the drying and roasting processes, generating charcoal powder and dust, which together form the process exhaust gas. This exhaust gas contains a large amount of ammonia and is usually treated by dilute sulfuric acid spraying. However, since the exhaust gas also contains combustion particulate matter and other harmful gases, effective separation and purification of the particulate matter and harmful gases are necessary to achieve emission standards. In addition, particulate matter can easily clog the spraying device, affecting the stable operation of the system. Therefore, the particulate matter in the exhaust gas needs to be filtered before spraying. Existing exhaust gas treatment devices install filter cartridges on the pipelines transporting the exhaust gas to filter the particulate matter. Over long-term operation, particulate matter accumulates inside the filter cartridges, requiring periodic disassembly and cleaning, making it difficult to achieve continuous treatment of the exhaust gas. Summary of the Invention

[0004] The purpose of this invention is to provide a tail gas treatment device for a special impregnated carbon production line to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A tail gas treatment device for a special impregnated charcoal production line includes: a device shell and an air inlet pipe fixedly installed on the outside of the device shell, with one end of the air inlet pipe extending to the inside of the device shell; a drainage pump for conveying dilute sulfuric acid solution fixedly installed on the top of the device shell; a spray frame provided on the inside of the device shell, with the top of the spray frame connected to the pipe of the drainage pump; a water injection pipe fixedly installed on the outside of the device shell; and a sewage discharge pipe fixedly installed on the bottom of the device shell; further comprising: a filtration mechanism for filtering fine particles in the tail gas, the filtration mechanism being installed on the inside of the device shell, the filtration mechanism including... The device includes an arc-shaped filter screen disposed inside the outer casing, which can filter fine particles in the exhaust gas; a cleaning mechanism for cleaning particulate impurities at the bottom of the arc-shaped filter screen, the cleaning mechanism being installed at the bottom of the arc-shaped filter screen and including multiple scrapers symmetrically arranged below the arc-shaped filter screen, the scrapers being able to scrape off particulate impurities at the bottom of the arc-shaped filter screen; and a washing mechanism for cleaning impurities on the surface of the scrapers, the washing mechanism being installed on the outside of the scrapers, the washing mechanism including a movable plate fixedly installed on the outside of the scrapers, the movable plate being able to wash particulate impurities on the surface of the scrapers.

[0006] Preferably, the filtration mechanism further includes a partition plate fixedly installed inside the device housing, support plates fixedly installed on both sides of the arc-shaped filter screen, an opening corresponding to the arc-shaped filter screen on the surface of the partition plate, and the support plates fixedly installed inside the opening of the partition plate, a hollow frustum fixedly installed on the top of the partition plate, a perforation on the top of the hollow frustum, a drain valve extending to the outside of the device housing fixedly installed on the bottom of the partition plate, and a plurality of centrally symmetrically distributed air supply pipes fixedly installed at one end of the air inlet pipe located inside the device housing, and a one-way exhaust valve fixedly installed at the end of the air supply pipe away from the air inlet pipe.

[0007] Preferably, the cleaning mechanism further includes a rotating rod rotatably mounted between the two support plates, a drive motor fixedly mounted on the top of the partition, and the output end of the drive motor fixedly connected to one end of the partition, a plurality of centrally symmetrically distributed mounting tubes are arranged between the two support plates, and the number of outputs of the mounting tubes is the same as the number of scrapers, the movable plate is mounted on the outside of the mounting tubes, and three equally spaced support rods are fixedly mounted between the side of the mounting tube away from the scraper and the outside of the rotating rod, a plurality of equally spaced support strips are fixedly mounted between the two support plates, and the top of the arc-shaped filter screen contacts the outside of the support strips.

[0008] Preferably, the cleaning mechanism further includes a slide rod slidably installed inside the mounting tube. The outer side of the slide rod is fixedly connected to the end of the movable plate away from the scraper. An mounting rod is fixedly installed at one end of the slide rod, and the end of the mounting rod away from the slide rod extends to the outer side of the mounting tube. A spherical abutment is fixedly installed at the end of the mounting rod away from the slide rod. An mounting ring is provided below the arc-shaped filter screen, and the mounting ring is fixedly installed on the outer side of the adjacent support plate. The end of the spherical abutment away from the mounting rod contacts the outer side of the mounting ring. A spring is fixedly installed between the end of the slide rod away from the mounting rod and the inner side of the mounting tube. The slide rod has a prismatic rod structure. Multiple equally spaced stops are fixedly installed on the outer side of the mounting ring. Both ends of the stops are arc-shaped structures, and the stops are located below the partition. An elongated groove is provided on the outer side of the mounting tube for the movable plate to slide and limit its movement. The length of the elongated groove is less than the length of the slide rod.

[0009] Preferably, an exhaust box is fixedly installed on the outer side of the device housing, a first exhaust pipe is fixedly installed between the top of the exhaust box and the top of the device housing, a plurality of activated carbon filter plates distributed at equal intervals are fixedly installed on the inner side of the exhaust box, and a second exhaust pipe is fixedly installed on the outer side of the exhaust box.

[0010] Preferably, a water tank is fixedly installed on the outer side of the device housing, and a heat-conducting fin is installed between the inner side of the water tank and the inner side of the device housing.

[0011] Preferably, an air guide cover is fixedly installed on the top of the hollow frustum, the top of the air guide cover is a frustum structure, and the size of the top of the air guide cover is larger than the size of the perforation on the top of the hollow frustum.

[0012] Preferably, an annular frame is fitted on the outer side of the air intake pipe, and the annular frame is fixedly installed on the inner side of the device housing.

[0013] Preferably, a plug is fixedly installed at the end of the slide bar away from the mounting rod, and the plug slides through one end of the mounting tube.

[0014] Preferably, a slip ring is fixedly installed on the inner side of the mounting ring, and a pulley is sleeved on the outer side of the mounting rod, and the pulley is slidably installed on the outer side of the mounting tube, with the outer side of the pulley in contact with the outer side of the slip ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a filtration mechanism to inject exhaust gas into water inside the device casing, causing larger particles in the exhaust gas to remain in the water. The filtered exhaust gas can then be filtered again through an arc-shaped filter screen to facilitate the treatment of finer particles. Finally, a dilute sulfuric acid solution is sprayed onto the exhaust gas through a spray head to achieve rapid treatment of the exhaust gas, thereby improving the treatment efficiency.

[0016] This invention, through a cleaning mechanism, enables multiple scrapers to move in a circular motion along the inner side of the arc-shaped filter screen, scraping away particulate impurities from the inner side of the arc-shaped filter screen downwards, preventing blockage of the arc-shaped filter screen, ensuring normal flow of exhaust gas, and thus facilitating continuous treatment of exhaust gas.

[0017] The present invention uses a cleaning mechanism that allows the scraper to reciprocate and be immersed in water at the bottom of the inner side of the device housing during the circular motion of the scraper, which facilitates the cleaning of particulate impurities on the surface of the scraper and makes it easier to clean and collect particulate impurities. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional view of the outer casing and spray frame of the device in this invention; Figure 3 This is a partial cross-sectional structural diagram of the gas transmission pipe and water injection pipe in this invention; Figure 4 This is a schematic diagram of a partial cross-sectional structure of the partition and hollow frustum in this invention; Figure 5 This is a partial cross-sectional view of the support plate and mounting tube in this invention. Figure 6 for Figure 5 Enlarged structural diagram of area A in the middle; Figure 7 This is a schematic diagram of the scraper and arc-shaped filter screen structure in this invention; Figure 8 This is a partial cross-sectional structural diagram of the water tank and heat-conducting fins in this invention.

[0019] In the diagram: 1. Device casing; 2. Air inlet pipe; 3. Drain pump; 4. Spray frame; 5. Water injection pipe; 6. Sewage discharge pipe; 7. Arc-shaped filter screen; 8. Scraper; 9. Movable plate; 10. Partition plate; 11. Support plate; 12. Hollow truncated cone; 13. Drain valve; 14. Air supply pipe; 15. One-way exhaust valve; 16. Rotating rod; 17. Drive motor; 18. Mounting pipe; 19. Support rod; 20. Support bar; 21. Sliding rod; 22. Mounting rod; 23. Spherical stop block; 24. Mounting ring; 25. Spring; 26. Stop block; 27. Exhaust box; 28. First exhaust pipe; 29. ​​Activated carbon filter plate; 30. Second exhaust pipe; 31. Water tank; 32. Heat-conducting fin plate; 33. Air guide hood; 34. Ring frame; 35. Insert rod; 36. Slip ring; 37. Pulley. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-8 The diagram shows a special impregnated carbon production line tail gas treatment device, including a device shell 1 and an air inlet pipe 2 fixedly installed on the outside of the device shell 1, with one end of the air inlet pipe 2 extending to the inside of the device shell 1. A drain pump 3 for conveying dilute sulfuric acid solution is fixedly installed on the top of the device shell 1. A spray frame 4 is provided on the inside of the device shell 1, and the top of the spray frame 4 is connected to the pipe of the drain pump 3, so that the drain pump 3 inputs dilute sulfuric acid solution into the spray frame 4. The spray frame 4 sprays the tail gas inside the device shell 1, which facilitates the treatment of ammonia in the tail gas. A water injection pipe 5 is fixedly installed on the outside of the device shell 1, and a sewage pipe 6 is fixedly installed on the bottom of the device shell 1. The water injection pipe 5 injects water into the bottom inside of the device shell 1, so that the water submerges the part of the air inlet pipe 2 located inside the device shell 1, which facilitates the cooling of the tail gas and allows the particulate matter in the tail gas to enter the water. The tail gas floats upward from the water in the form of bubbles, which facilitates the separation of larger particulate matter in the tail gas. The filtration mechanism includes an arc-shaped filter screen 7 disposed inside the device housing 1. The arc-shaped filter screen 7 can filter fine particles in the exhaust gas. The filtration mechanism also includes a partition plate 10 fixedly installed inside the device housing 1. Support plates 11 are fixedly installed on both sides of the arc-shaped filter screen 7. The surface of the partition plate 10 has openings corresponding to the arc-shaped filter screen 7, and the support plates 11 are fixedly installed inside the openings of the partition plate 10, so that the exhaust gas floating inside the device housing 1 can come into contact with the arc-shaped filter screen 7 through the openings on the surface of the partition plate 10. The arc-shaped filter screen 7 filters the fine particles in the exhaust gas, preventing blockage of the spray nozzles of the spray frame 4. A hollow frustum 12 is fixedly installed on the top of the partition plate 10. The top of the platform 12 has a perforation, allowing the exhaust gas passing through the arc-shaped filter 7 to exit from the top of the hollow truncated cone 12. A drain valve 13 extending to the outside of the device housing 1 is fixedly installed at the bottom of the partition 10. The dilute sulfuric acid solution sprayed downwards by the spray frame 4 flows downwards along the outside of the hollow truncated cone 12 and exits through the drain valve 13. Multiple centrally symmetrically distributed gas delivery pipes 14 are fixedly installed at one end of the inlet pipe 2, and a one-way exhaust valve 15 is fixedly installed at the end of each gas delivery pipe 14 away from the inlet pipe 2. The exhaust gas is separated and discharged from the water inside the device housing 1 through the multiple gas delivery pipes 14, preventing the accumulation of large particles in the water. An exhaust box 27 is fixedly installed on the outside of the device housing 1. A first exhaust pipe 28 is fixedly installed between the top of the exhaust box 27 and the top of the device housing 1. Multiple activated carbon filter plates 29 distributed at equal intervals are fixedly installed on the inside of the exhaust box 27. A second exhaust pipe 30 is fixedly installed on the outside of the exhaust box 27. The treated exhaust gas inside the device housing 1 enters the exhaust box 27 through the first exhaust pipe 28, is deodorized and filtered by the multiple activated carbon filter plates 29, and is then discharged out through the second exhaust pipe 30. A water tank 31 is fixedly installed on the outside of the device housing 1. A heat-conducting fin 32 is installed between the inside of the water tank 31 and the inside of the device housing 1, so that the heat-conducting fin 32 can conduct heat into the exhaust gas inside the device housing 1. Water conducts heat and transfers it to the water tank 31, allowing the water inside the outer shell 1 to continuously dissipate heat from the air inlet pipe 2 and also enabling heat recovery. A duct 33 is fixedly installed on the top of the hollow truncated cone 12. The top of the duct 33 is a truncated cone structure, and the size of the top of the duct 33 is larger than the size of the perforation on the top of the hollow truncated cone 12. This provides a shield for the perforation on the top of the hollow truncated cone 12, preventing dilute sulfuric acid solution from entering the inner side of the hollow truncated cone 12. An annular frame 34 is fitted on the outer side of the air inlet pipe 2 and is fixedly installed on the inner side of the outer shell 1, providing auxiliary support for the air inlet pipe 2 and ensuring the smooth delivery of exhaust gas by the air inlet pipe 2.

[0022] Example 2: Please refer to Figures 2-7This embodiment further illustrates Example 1. The cleaning mechanism shown in the figure includes multiple scrapers 8 arranged symmetrically below the arc-shaped filter screen 7. The scrapers 8 can scrape off particulate impurities at the bottom of the arc-shaped filter screen 7. The cleaning mechanism also includes a rotating rod 16 rotatably mounted between two support plates 11. A drive motor 17 is fixedly mounted on the top of the partition plate 10, and the output end of the drive motor 17 is fixedly connected to one end of the partition plate 10. The drive motor 17 can drive the rotating rod 16 to rotate. Multiple mounting tubes 18 are arranged symmetrically between the two support plates 11, and the number of output tubes 18 is the same as the number of scrapers 8. A movable plate 9 is mounted on the outside of the mounting tubes 18. Three equally spaced support rods 19 are fixedly installed between the side away from the scraper 8 and the outer side of the rotating rod 16. The rotating rod 16 can drive the installation tube 18 to make a circular motion through the support rods 19, so that the installation tube 18 drives the scraper 8 to move synchronously through the movable plate 9. The scraper 8 can then move along the inner side of the arc-shaped filter screen 7, which facilitates the scraping of particulate impurities on the inner side of the arc-shaped filter screen 7, avoids the blockage of the arc-shaped filter screen 7, and ensures the normal flow of exhaust gas. Multiple equally spaced support strips 20 are fixedly installed between the two support plates 11, and the top of the arc-shaped filter screen 7 contacts the outer side of the support strips 20, so that the support strips 20 provide support for the arc-shaped filter screen 7 and prevent the arc-shaped filter screen 7 from deforming under force.

[0023] Example 3: Please refer to Figures 3-7This embodiment further illustrates other embodiments. The cleaning mechanism shown in the figure includes a movable plate 9 fixedly installed on the outside of the scraper 8. The movable plate 9 can clean particulate impurities on the surface of the scraper 8. The cleaning mechanism also includes a slide rod 21 slidably installed inside the mounting tube 18. The outside of the slide rod 21 is fixedly connected to the end of the movable plate 9 away from the scraper 8. An mounting rod 22 is fixedly installed on one end of the slide rod 21, and the end of the mounting rod 22 away from the slide rod 21 extends to the outside of the mounting tube 18. A spherical abutment 23 is fixedly installed on the end of the mounting rod 22 away from the slide rod 21. An mounting ring 24 is provided below the arc-shaped filter screen 7, and the mounting ring 24 is fixedly installed on the outside of the adjacent support plate 11. The end of the spherical abutment 23 away from the mounting rod 22 is connected to the mounting ring. The outer side of the mounting ring 24 is in contact with the mounting rod 22. A spring 25 is fixedly installed between the end of the sliding rod 21 away from the mounting rod 22 and the inner side of the mounting tube 18. The elasticity of the spring 25 pushes the sliding rod 21 against the inner side of the mounting tube 18. The sliding rod 21 can make the spherical abutment 23 at the end of the mounting rod 22 abut against the outer side of the mounting ring 24. When the mounting tube 18 makes a circular motion, the sliding rod 21 can drive the spherical abutment 23 at the end of the mounting rod 22 to move along the outer side of the mounting ring 24. The sliding rod 21 has a prismatic rod structure to avoid the spherical abutment 23 from deflecting during the movement. Multiple equally spaced stops 26 are fixedly installed on the outer side of the mounting ring 24. Both ends of the stops 26 are arc-shaped structures, and the stops 26 are located at... Below the partition 10, an elongated groove is provided on the outer side of the mounting tube 18 for the movable plate 9 to slide in a limited manner. The length of the elongated groove is less than the length of the slide rod 21. When the scraper 8 moves downward, it can enter the water at the bottom of the inner side of the device housing 1, and its outer spherical abutment 23 contacts the stop block 26 on the mounting ring 24. The reaction force of the stop block 26 on the spherical abutment 23 causes the spherical abutment 23 to push the mounting rod 22 to move. The mounting rod 22 drives the slide rod 21 to move along the inner side of the mounting tube 18, causing the slide rod 21 to compress the spring 25, and thus drive the scraper 8 to move through the movable plate 9. When the spherical abutment 23 moves away from the stop block 26, the elasticity of the spring 25 causes the slide rod 21 to return to its original position, and the scraper 8 can move synchronously, thus realizing the reciprocating motion of the scraper 8. The sliding rod 21 is fixedly mounted with an insertion rod 35 at the end away from the mounting rod 22, and the insertion rod 35 slides through one end of the mounting tube 18. When the sliding rod 21 moves, it can drive the insertion rod 35 to move along the inner side of the mounting tube 18, providing support and guidance for the movement of the sliding rod 21. A slip ring 36 is fixedly mounted on the inner side of the mounting ring 24. A pulley 37 is sleeved on the outer side of the mounting rod 22, and the pulley 37 is slidably mounted on the outer side of the mounting tube 18. The outer side of the pulley 37 is in contact with the outer side of the slip ring 36. The mounting tube 18 can drive the pulley 37 to make a circular motion along the outer side of the slip ring 36. The slip ring 36 provides auxiliary support for the pulley 37, and the pulley 37 can provide auxiliary support for the mounting rod 22.

[0024] Working principle: First, the operator injects water into the bottom inner side of the device housing 1 through the water injection pipe 5, raising the water level to below the partition 10. At this time, the air inlet pipe 2 injects the exhaust gas to be treated into multiple air delivery pipes 14, allowing the exhaust gas to pass through the one-way exhaust valve 15 and be discharged into the water at the bottom inner side of the device housing 1. The exhaust gas floats upward as bubbles, and larger particulate impurities in the exhaust gas remain in the water, achieving the first filtration of the exhaust gas. Then, the exhaust gas enters between the two support plates 11 through the opening on the surface of the partition 10, allowing the exhaust gas to pass through the arc-shaped filter screen 7. The arc-shaped filter screen 7 filters out the fine particulate impurities in the exhaust gas, achieving the second filtration of the exhaust gas. Then, the drain pump 3 inputs dilute sulfuric acid solution into the spray frame 4, and the spray frame 4 is used to filter the exhaust gas inside the device housing 1. The exhaust gas is sprayed to treat the ammonia in the exhaust gas. The treated exhaust gas enters the exhaust box 27 through the first exhaust pipe 28. The activated carbon filter plate 29 in the exhaust box 27 deodorizes the exhaust gas. The treated exhaust gas can then be discharged from the second exhaust pipe 30, completing the multi-stage treatment of the exhaust gas. At the same time, the drive motor 17 drives the rotating rod 16 to rotate, so that the rotating rod 16 drives multiple mounting pipes 18 to rotate through the support rod 19. The mounting pipes 18 drive the sliding rod 21 to move synchronously, so that the sliding rod 21 drives the scraper 8 to rotate through the movable plate 9. When the scraper 8 comes into contact with the arc-shaped filter screen 7, the scraper 8 can scrape off the particulate impurities on the inside of the arc-shaped filter screen 7, avoiding the arc-shaped filter screen 7 from becoming blocked and ensuring the normal filtration of the subsequent exhaust gas. When the scraper 8 moves below the partition 10, the slide rod 21, through the mounting rod 22, drives the spherical abutment 23 to contact the first stop 26 on the mounting ring 24. The reaction force of the stop 26 on the spherical abutment 23 pushes the mounting rod 22 to move. The mounting rod 22 drives the slide rod 21 to move along the inner side of the mounting tube 18. Simultaneously, the slide rod 21 compresses the spring 25, driving the movable plate 9 to move along the long groove of the mounting tube 18. The movable plate 9 then drives the scraper 8 to move. When the spherical abutment 23 moves away from the first stop 26, the rebound force of the spring 25 pushes the slide rod 21 back to its original position. The spherical abutment 23 then abuts against the outer side of the mounting ring 24. When the spherical abutment 23 contacts the next stop 26, the scraper 8 can move again. The reciprocating motion of the scraper 8, while allowing it to be immersed in the water at the bottom inside the outer casing 1, cleans the residual particulate impurities on its surface, concentrating them in the water. The cleaned scraper 8 then cleans the arc-shaped filter 7 again, ensuring continuous treatment of the exhaust gas. Simultaneously, the water at the bottom inside the outer casing 1 cools the exhaust gas in the inlet pipe 2, reducing its volume and flow rate, thus improving the treatment efficiency of the dilute sulfuric acid solution. Furthermore, the heat-conducting fins 32 transfer heat from the water to the water tank 31, heating the water and facilitating heat recovery, thereby achieving efficient exhaust gas treatment and ensuring continuous treatment.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tail gas treatment device for a special impregnated charcoal production line, characterized in that, include: The device housing (1) is equipped with an air inlet pipe (2) installed on the outside of the device housing (1), and one end of the air inlet pipe (2) extends to the inside of the device housing (1). A drain pump (3) for conveying dilute sulfuric acid solution is installed on the top of the device housing (1). A spray frame (4) is provided on the inside of the device housing (1), and the top of the spray frame (4) is connected to the pipe of the drain pump (3). A water injection pipe (5) is installed on the outside of the device housing (1), and a sewage pipe (6) is installed at the bottom of the device housing (1). Also includes: A filtration mechanism is used to filter fine particles in the exhaust gas. The filtration mechanism is installed inside the housing (1) of the device. The filtration mechanism includes an arc-shaped filter screen (7) disposed inside the housing (1) of the device. The arc-shaped filter screen (7) can filter fine particles in the exhaust gas. The cleaning mechanism is used to clean the particulate impurities at the bottom of the arc-shaped filter screen (7). The cleaning mechanism is installed at the bottom of the arc-shaped filter screen (7). The cleaning mechanism includes a plurality of scrapers (8) arranged symmetrically below the arc-shaped filter screen (7). The scrapers (8) can scrape off the particulate impurities at the bottom of the arc-shaped filter screen (7). A cleaning mechanism is used to clean impurities on the surface of the scraper (8). The cleaning mechanism is installed on the outside of the scraper (8). The cleaning mechanism includes a movable plate (9) fixedly installed on the outside of the scraper (8). The movable plate (9) can clean particulate impurities on the surface of the scraper (8).

2. The tail gas treatment device for a special impregnated carbon production line according to claim 1, characterized in that: The filtration mechanism also includes a partition (10) installed inside the housing (1) of the device. Support plates (11) are installed on both sides of the arc-shaped filter (7). The surface of the partition (10) has an opening corresponding to the arc-shaped filter (7), and the support plate (11) is installed inside the opening of the partition (10). A hollow frustum (12) is installed on the top of the partition (10). A perforation is opened on the top of the hollow frustum (12). A drain valve (13) extending to the outside of the housing (1) of the device is installed at the bottom of the partition (10). A plurality of air supply pipes (14) are fixedly installed at one end of the air inlet pipe (2) located inside the housing (1) of the device. A one-way exhaust valve (15) is installed at one end of the air supply pipe (14).

3. The tail gas treatment device for a special impregnated charcoal production line according to claim 2, characterized in that: The cleaning mechanism also includes a rotating rod (16) rotatably mounted between the two support plates (11), a drive motor (17) is mounted on the top of the partition (10), and the output end of the drive motor (17) is fixedly connected to one end of the partition (10). Multiple mounting tubes (18) are arranged between the two support plates (11), and the output of the mounting tubes (18) is the same as the number of scrapers (8). The movable plate (9) is installed on the outside of the mounting tubes (18). Three support rods (19) are installed between one side of the mounting tubes (18) and the outside of the rotating rod (16). Multiple support bars (20) are installed between the two support plates (11) in an equidistant manner, and the top of the arc-shaped filter (7) is in contact with the outside of the support bar (20).

4. The tail gas treatment device for a special impregnated charcoal production line according to claim 3, characterized in that: The cleaning mechanism further includes a slide rod (21) slidably mounted inside the mounting tube (18). The outer side of the slide rod (21) is fixedly connected to one end of the movable plate (9). A mounting rod (22) is mounted on one end of the slide rod (21), and one end of the mounting rod (22) extends to the outer side of the mounting tube (18). A spherical abutment (23) is mounted on the end of the mounting rod (22) away from the slide rod (21). A mounting ring (24) is provided below the arc-shaped filter screen (7), and the mounting ring (24) is... 4) Installed on the outside of the adjacent support plate (11), the end of the spherical abutment (23) away from the mounting rod (22) is in contact with the outside of the mounting ring (24), and a spring (25) is installed between the end of the sliding rod (21) away from the mounting rod (22) and the inside of the mounting tube (18). Multiple stops (26) are fixedly installed on the outside of the mounting ring (24). Both ends of the stops (26) are arc-shaped structures, and the stops (26) are located below the partition plate (10).

5. The tail gas treatment device for a special impregnated charcoal production line according to claim 1, characterized in that: An exhaust box (27) is fixedly installed on the outside of the device housing (1). A first exhaust pipe (28) is fixedly installed between the top of the exhaust box (27) and the top of the device housing (1). Multiple activated carbon filter plates (29) are fixedly installed on the inside of the exhaust box (27) at equal intervals. A second exhaust pipe (30) is fixedly installed on the outside of the exhaust box (27).

6. The tail gas treatment device for a special impregnated carbon production line according to claim 1, characterized in that: A water tank (31) is fixedly installed on the outside of the device housing (1), and a heat-conducting fin plate (32) is installed between the inside of the water tank (31) and the inside of the device housing (1).

7. The tail gas treatment device for a special impregnated carbon production line according to claim 2, characterized in that: An air guide hood (33) is fixedly installed on the top of the hollow truncated cone (12). The top of the air guide hood (33) is a truncated cone structure, and the size of the top of the air guide hood (33) is larger than the size of the perforation on the top of the hollow truncated cone (12).

8. The tail gas treatment device for a special impregnated carbon production line according to claim 2, characterized in that: The air intake pipe (2) is fitted with an annular frame (34) on the outside, and the annular frame (34) is fixedly installed on the inside of the device housing (1).

9. The tail gas treatment device for a special impregnated charcoal production line according to claim 4, characterized in that: A plug rod (35) is fixedly installed at one end of the slide rod (21) away from the mounting rod (22), and the plug rod (35) slides through one end of the mounting tube (18).

10. The tail gas treatment device for a special impregnated charcoal production line according to claim 4, characterized in that: A slip ring (36) is fixedly installed on the inner side of the mounting ring (24), and a pulley (37) is sleeved on the outer side of the mounting rod (22). The pulley (37) is slidably installed on the outer side of the mounting tube (18), and the outer side of the pulley (37) is in contact with the outer side of the slip ring (36).

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