A wood panel processing plant air filtration system

By combining staged air intake and the Venturi effect with steam humidification, the air filtration system solves the problems of low air intake ratio adjustment and low condensation efficiency in the air filtration system of wood panel processing plants, achieving efficient and stable air purification effect and reducing energy consumption and maintenance frequency.

CN122149038APending Publication Date: 2026-06-05YALEJU INTELLIGENT MANUFACTURING DONGTAI CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YALEJU INTELLIGENT MANUFACTURING DONGTAI CO LTD
Filing Date
2026-04-22
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing air filtration systems in wood-based panel processing plants cannot dynamically adjust the intake ratio according to the concentration of large and small particles, resulting in uneven mixing, easy clogging of filters, low condensation efficiency, high energy consumption, and difficulty in meeting the continuous and efficient air purification needs.

Method used

It adopts a staged air intake structure and combines the Venturi effect with steam humidification to automatically adjust the air intake ratio. It also uses a scraper structure to clean condensed dust in real time. Combined with the Venturi device, it achieves efficient mixing and agglomeration and automatic scraping, reducing the escape rate of small dust particles and extending the service life of the equipment.

Benefits of technology

It enables automatic adjustment of the air intake ratio based on particle concentration, improving dust agglomeration, reducing the escape rate of small particles, maintaining stable condensation and dust reduction efficiency, reducing energy consumption, simplifying operation and maintenance processes, improving purification efficiency, and improving the working environment.

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Abstract

The present application relates to the field of environmental protection, and discloses a kind of wooden board processing plant air filtering system, the system can automatically adjust the proportion of air intake according to the concentration of large and small particle impurities in the pipeline, cooperate with steam humidification and Venturi effect to realize efficient mixing and agglomeration, significantly improve the dust condensation effect, reduce the small particle dust escape rate, the system is driven by airflow Automatic scraper structure, real-time cleaning of the condensation dust cake adhered to the surface of the refrigeration plate, keep the condensation dust removal efficiency stable, without frequent manual disassembly maintenance, without additional power driven ash removal mechanism, reduce the operation energy consumption; The drawer type dust collection structure facilitates dust collection and cleaning, simplifies the operation and maintenance process, the overall scheme solves the problem of large particle size difference, easy to adhere and difficult to filter of wood processing dust, with high purification efficiency, stable and reliable operation, can guarantee the plant air emission standard for a long time, improve the workshop working environment.
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Description

Technical Field

[0001] This invention relates to the field of environmental protection technology, specifically to an air filtration system for a wood-based panel processing plant. Background Technology

[0002] The processing of wood-based panels continuously generates a large amount of sawdust, dust and wood fiber particles. According to particle size, they can be divided into large particles and small particles of dust. The two are distributed at different heights and have significantly different diffusion characteristics in the factory.

[0003] Existing factory air filtration systems mostly use a single pipeline and a fixed air volume intake structure, which cannot dynamically adjust the intake ratio according to the concentration of large and small particles. This easily leads to problems such as uneven mixing and poor agglomeration. At the same time, conventional filtration relies on filter screens for interception, which have a high penetration rate of small dust particles and cause the filter screens to clog quickly, requiring frequent cleaning and maintenance. Some systems use condensation dust removal, but dust clumps easily adhere to the surface of the cooling plate and lack an automatic cleaning structure. Long-term use will lead to a decrease in condensation efficiency and a reduction in dust removal effect. In addition, the dust mixing and condensation processes are separated, and the Venturi effect is not used to enhance gas-solid mixing. The overall dust removal efficiency is low and the energy consumption is high, making it difficult to meet the continuous, efficient and stable air purification needs of wood panel processing plants. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an air filtration system for wood panel processing plants, which has advantages such as [list of advantages] and solves a series of problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an air filtration system for a wood-based panel processing plant, comprising, A filter housing, on one side of which a large particle tube and a small particle tube are fixedly installed, and inside the filter housing, a steam engine and a filter mechanism are fixedly installed. One end of each of the large particle tube and the small particle tube extends into the interior of the filter mechanism. The output end of the steam engine is connected to a steam pipe, one end of which extends into the interior of the small particle tube. The adjustment mechanism includes an adjustment sleeve fixedly connected inside the large particle tube and the small particle tube. An adjustment rubber band is fixedly connected to one end of the adjustment sleeve, and an adjustment plate is slidably connected inside the adjustment sleeve. The outer sides of the two adjustment sleeves respectively abut against the inner walls of the adjacent large particle tube and small particle tube. The filtration mechanism includes a filter box fixedly installed inside the filter housing. Three cooling plates are fixedly installed on one side of the inner wall of the filter box, and scrapers are slidably connected to one side of each of the three cooling plates. The bottom of the filter box is connected to a filter housing, and a filter pump is fixedly installed on the bottom of the inner wall of the filter housing. The input end of the filter pump is connected to the output end of the filter housing, and the output end of the filter pump is connected to an exhaust shell.

[0006] Preferably, the adjustment mechanism further includes an adjustment frame fixedly connected inside the large particle tube and the small particle tube. An adjustment cylinder is fixedly connected to one side of the adjustment frame, and an adjustment rod is slidably connected to one end of the adjustment cylinder. An adjustment spring is fixedly connected inside the adjustment cylinder, and one end of the adjustment spring is fixedly connected to one end of the adjustment rod. The adjustment plates are respectively fixedly sleeved on the outside of adjacent adjustment rods.

[0007] Preferably, both the large and small particle tubes are fixedly connected to a storage shell inside, the two storage shells are connected to the same storage tube, one side of each of the two storage shells is connected to a storage bladder, one end of each of the two storage bladders is respectively abutted to one end of an adjacent adjusting rod, and the outside of each of the two adjusting rods is rotatably connected to an adjusting fan.

[0008] Preferably, one end of the large particle tube is connected to an outer tube, one end of the small particle tube extends into the interior of the outer tube, a venturi is fixedly connected to the interior of the small particle tube, an air guide block is fixedly connected to one side of the inner wall of the filter box, a drawer is slidably connected to the bottom of the filter box, and one end of the large particle tube and the small particle tube are respectively connected to a large particle shell and a small particle shell.

[0009] Preferably, the bottom of the filter box is connected to a drive tube, the bottom of the drive tube is connected to the input end of the filter box, a drive frame and a retainer are fixedly connected inside the drive tube, a drive rod is rotatably connected to the top of the drive frame, the drive rod is rotatably connected inside the retainer, a drive fan is fixedly sleeved on the outside of the drive rod, and a gear is fixedly connected to the top of the drive rod.

[0010] Preferably, a limiting frame is fixedly connected to the bottom of the filter box, a belt is rotatably connected to the top of the limiting frame, the outside of the gear meshes with the outside of the belt, a movable frame is rotatably connected to the top of the belt, the scraper is movably inserted into the movable frame, and a rubber plate is fixedly connected to the top of the limiting frame, one side of the rubber plate is adapted to the outside of the movable frame.

[0011] Preferably, a limiting block is fixedly connected to one side of the inner wall of the filter box, a sliding block is slidably connected to one side of the limiting block, and the movable frame is slidably connected inside the sliding block.

[0012] Compared with the prior art, the present invention provides an air filtration system for a wood-based panel processing plant, which has the following beneficial effects: 1. This invention can automatically adjust the air intake ratio according to the concentration of large and small particles of impurities in the pipeline, and achieve efficient mixing and agglomeration in combination with steam humidification and Venturi effect, significantly improving the dust agglomeration effect, reducing the escape rate of small dust particles, and cleaning the condensed dust agglomerates adhering to the surface of the refrigeration plate in real time through the airflow driven automatic scraper structure, maintaining stable condensation dust reduction efficiency, eliminating the need for frequent manual disassembly and maintenance, and extending the service life of the equipment.

[0013] 2. This invention, through its integrated design of graded air intake, adaptive adjustment, and condensation dust scraping, eliminates the need for additional power to drive the dust removal mechanism, thus reducing operating energy consumption. The drawer-type dust collection structure facilitates centralized dust cleaning, simplifies the operation and maintenance process, and the overall solution specifically addresses the pain points of wood processing dust, such as large particle size differences, easy adhesion, and difficulty in filtration. It has high purification efficiency, stable and reliable operation, and can ensure that the factory air meets emission standards for a long time, thereby improving the workshop working environment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the internal structure of the filter housing of the present invention; Figure 3 This is a three-dimensional structural diagram of the internal structure of the filtration mechanism of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the adjustment mechanism of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part B; Figure 6 This is a three-dimensional structural diagram of the air guide block part of the present invention; Figure 7 This is a three-dimensional structural diagram of the driving fan part of the present invention; Figure 8 for Figure 3 A magnified structural diagram of part A.

[0015] In the diagram: 1. Filter housing; 2. Filtering mechanism; 3. Adjusting mechanism; 4. Exhaust housing; 5. Large particle housing; 6. Large particle tube; 7. Small particle housing; 8. Small particle tube; 9. Filter box; 10. Steam engine; 11. Steam pipe; 12. Adjusting frame; 13. Adjusting cylinder; 14. Adjusting rod; 15. Adjusting spring; 16. Adjusting fan; 17. Storage housing; 18. Storage bladder; 19. Adjusting plate; 20. Adjusting sleeve; 21. Adjusting... 21. Rubber band; 22. Storage tube; 23. Outer tube; 24. Venturi; 25. Air guide block; 26. Refrigeration plate; 27. Moving frame; 28. Scraper; 29. ​​Drawer; 30. Drive tube; 31. Drive frame; 32. Drive rod; 33. Drive fan; 34. Retainer; 35. Gear; 36. Limiting frame; 37. Belt; 38. Rubber plate; 39. Limiting block; 40. Sliding block; 41. Filter box; 42. Filter pump. Detailed Implementation

[0016] 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.

[0017] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes an air filtration system for a wood-based panel processing plant.

[0018] In one typical implementation of this application, such as Figure 1-8 As shown, an air filtration system for a wood-based panel processing plant includes, A filter housing 1 has a large particle tube 6 and a small particle tube 8 fixedly installed on one side. A steam engine 10 and a filter mechanism 2 are fixedly installed inside the filter housing 1. One end of the large particle tube 6 and the small particle tube 8 extends into the interior of the filter mechanism 2. The output end of the steam engine 10 is connected to a steam pipe 11, one end of which extends into the interior of the small particle tube 8. A filter box 9 is connected to a filter housing 41 at its bottom. A filter pump 42 is fixedly installed at the bottom of the inner wall of the filter housing 1. The input end of the filter pump 42 is connected to the output end of the filter housing 41, and the output end of the filter pump 42 is connected to an exhaust shell 4. Adjustment mechanism 3 includes an adjustment sleeve 20 fixedly connected inside the large particle tube 6 and the small particle tube 8. One end of the adjustment sleeve 20 is fixedly connected to an adjustment rubber band 21. An adjustment piece 19 is slidably connected inside the adjustment sleeve 20. The outer sides of the two adjustment sleeves 20 respectively abut against the inner walls of the adjacent large particle tube 6 and small particle tube 8. The adjustment mechanism 3 also includes an adjustment frame 12 fixedly connected inside the large particle tube 6 and the small particle tube 8. An adjustment cylinder 13 is fixedly connected to one side of the adjustment frame 12. An adjustment rod 14 is slidably connected to one end of the adjustment cylinder 13. An adjustment spring 15 is fixedly connected inside the adjustment cylinder 13. One end of the adjustment spring 15 is fixedly connected to one end of the adjustment rod 14. Adjustment plates 19 are respectively fixedly sleeved on the outside of the adjacent adjustment rods 14. Both the large particle tube 6 and the small particle tube 8 are fixedly connected to a storage shell 17. The two storage shells 17 are connected to the same storage tube 22. One side of each of the two storage shells 17 is connected to a storage bladder 18. One end of each of the two storage bladders 18 is respectively abutted against one end of a nearby adjusting rod 14. The outside of each of the two adjusting rods 14 is rotatably connected to an adjusting fan 16. The bottom of the filter box 9 is connected to the filter housing 41. The bottom of the inner wall of the filter housing 1 is fixedly installed with a filter pump 42. The input end of the filter pump 42 is connected to the output end of the filter housing 41. The output end of the filter pump 42 is connected to the exhaust shell 4.

[0019] With the above-described structure, the mixing ratio of impurities inside the large particle tube 6 and small particle tube 8 can be adjusted according to the impurity concentration inside the tube, thereby improving the agglomeration effect of impurities. Specifically, when air filtration is required in the wood processing plant, the filter pump 42 is activated, and the large particle shell 5 and small particle shell 7 respectively draw air from different heights in the plant. Due to gravity, the large particle shell 5 draws large particle impurities, and the small particle shell 7 draws small particle impurities. During the air extraction process, the impurities agitate the regulating fans 16 inside the large particle tube 6 and small particle tube 8. Interference occurs when the impurity concentration in one of the pipes is high. At this time, the regulating fan 16 with high impurity concentration rotates rapidly, which drives the regulating rod 14 connected to it to move inside the nearby regulating cylinder 13. At the same time, the nearby storage bladder 18 stretches and expands. At this time, the movement of the regulating rod 14 drives the regulating plate 19 to move. The movement of the regulating plate 19 drives the regulating sleeve 20 that abuts against it to move. One end of the regulating sleeve 20 contracts due to the retraction of the regulating rubber band 21, while one end of the regulating sleeve 20 in the other pipe drives the regulating sleeve 20 on it to expand, thereby changing the mixing and distribution of the gas inside the large particle pipe 6 and the small particle pipe 8.

[0020] The filter mechanism 2 includes a filter box 9 fixedly installed inside the filter housing 1. One end of the large particle tube 6 is connected to an outer tube 23, and one end of the small particle tube 8 extends into the interior of the outer tube 23. A venturi 24 is fixedly connected inside the small particle tube 8. An air guide block 25 is fixedly connected to one side of the inner wall of the filter box 9. A drawer 29 is slidably connected to the bottom of the filter box 9. One end of the large particle tube 6 and the small particle tube 8 are respectively connected to a large particle shell 5 and a small particle shell 7. With the above-mentioned structure, the impurities inside the large particle tube 6 and the small particle tube 8 can be efficiently mixed and agglomerated. Specifically, after the gas inside the small particle tube 8 passes through the regulating mechanism 3, the steam engine 10 injects steam into the small particle tube 8 through the steam pipe 11 to mix with the air containing impurities inside the small particle tube 8, and then the steam is drawn into the filter mechanism 2 by the venturi 24. Meanwhile, the gas inside the large particle tube 6 is released around the outlet of the small particle tube 8 through the outer pipe 23. Through the venturi principle, the gas inside the large particle tube 6 and the small particle tube 8 is highly mixed, and the gas guide block 25 further disperses and mixes the gas, causing the impurities of different sizes inside the large particle tube 6 and the small particle tube 8 to agglomerate.

[0021] Three cooling plates 26 are fixedly installed on one side of the inner wall of the filter box 9, and scrapers 28 are slidably connected to one side of each of the three cooling plates 26. The bottom of the filter box 9 is connected to the drive tube 30, the bottom of the drive tube 30 is connected to the input end of the filter box 41, the drive tube 30 is fixedly connected to the drive frame 31 and the retainer 34, the top of the drive frame 31 is rotatably connected to the drive rod 32, the drive rod 32 is rotatably connected to the inside of the retainer 34, the drive rod 32 is fixedly sleeved to the outside of the drive fan 33, and the top of the drive rod 32 is fixedly connected to the gear 35. The bottom of the filter box 9 is fixedly connected to a limiting frame 36, and the top of the limiting frame 36 is rotatably connected to a belt 37. The outside of the gear 35 meshes with the outside of the belt 37. The top of the belt 37 is rotatably connected to a movable frame 27, and the scraper 28 is movably inserted into the movable frame 27. The top of the limiting frame 36 is fixedly connected to a rubber plate 38, and one side of the rubber plate 38 is adapted to the outside of the movable frame 27. A limiting block 39 is fixedly connected to one side of the inner wall of the filter box 9, and a sliding block 40 is slidably connected to one side of the limiting block 39. The movable frame 27 is slidably connected inside the sliding block 40.

[0022] Furthermore, in the above scheme, the structure described above can collect the mixed clumps, improving the service life of the filter box 41. Specifically, after the impurities clump together, the air inside the filter box 9 flows towards one end of the drive tube 30 through the filter pump 42. During the air flow, the cooling plate 26 is activated to cool the mixture, causing the mixed clumps of vapor impurities to condense and fall into the drawer 29 for collection. Some air also condenses the vapor impurities by contacting the outer wall of the cooling plate 26 and adheres to the cooling plate 26. At the same time, the gas inside the filter box 9 enters the drive tube 30, driving the drive fan 33 to rotate. The drive fan 33 rotates, driving the drive rod 32 to rotate. The drive rod 32 rotates, driving the gear 35 to rotate. The gear 35 rotates, driving the belt 37 that meshes with it to rotate. The belt 37 rotates, driving the moving frame 27 to move. The moving frame 27 moves, driving the scraper 28 to move, scraping off the condensed impurities adhering to the cooling plate 26. During the movement of the moving frame 27, the sliding block 40 slides inside the limiting block 39 to limit the movement angle of the moving frame 27.

[0023] The working principle of this invention is as follows: When it is necessary to filter the air in the wood factory, the filter pump 42 is started. The large particle shell 5 and the small particle shell 7 respectively draw air from different heights in the factory. Due to gravity, the large particle shell 5 draws large particle impurities, and the small particle shell 7 draws small particle impurities. During the air extraction process, the impurities interfere with the regulating fan 16 inside the large particle tube 6 and the small particle tube 8 respectively. When the impurity concentration in one of the tubes is high, the regulating fan 16 with the high impurity concentration rotates rapidly and drives the regulating rod 14 connected to it to move inside the nearby regulating cylinder 13. At the same time, the nearby storage bladder 18 stretches and expands. At this time, the movement of the regulating rod 14 drives the regulating plate 19 to move. The movement of the regulating plate 19 drives the regulating sleeve 20 that abuts against it to move. One end of the regulating sleeve 20 is contracted due to the retraction of the regulating rubber band 21, while one end of the regulating sleeve 20 of the other tube drives the regulating sleeve 20 above it to expand, thereby changing the mixing and distribution of the gas inside the large particle tube 6 and the small particle tube 8. After the gas inside the small particle tube 8 passes through the regulating mechanism 3, the steam engine 10 injects steam into the small particle tube 8 through the steam pipe 11 to mix with the air containing impurities inside the small particle tube 8. The steam is then drawn into the filter mechanism 2 by the venturi 24. Meanwhile, the gas inside the large particle tube 6 is released around the outlet of the small particle tube 8 through the outer pipe 23. Through the venturi principle, the gas inside the large particle tube 6 and the small particle tube 8 is highly mixed, and further dispersed and mixed by the air guide block 25, causing the impurities of different sizes inside the large particle tube 6 and the small particle tube 8 to clump together. After impurities clump together, the air inside the filter box 9 is propelled by the filter pump 42 towards one end of the drive tube 30. During the airflow, the cooling plate 26 is activated to cool the mixture, causing the clumped vapor impurities to condense and fall into the drawer 29 for collection. Some air also condenses the vapor impurities by contacting the outer wall of the cooling plate 26, causing them to adhere to the cooling plate 26. At the same time, the gas inside the filter box 9 enters the drive tube 30, which drives the drive fan 33 to rotate. The drive fan 33 rotates, which drives the drive rod 32 to rotate. The drive rod 32 rotates, which drives the gear 35 to rotate. The gear 35 rotates, which drives the belt 37 that meshes with it to rotate. The belt 37 rotates, which moves the moving frame 27. The moving frame 27 moves the scraper 28, which scrapes off the condensed impurities adhering to the cooling plate 26.

[0024] 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. An air filtration system for a wood-based panel processing plant, characterized in that: include, A filter housing 1 has a large particle tube 6 and a small particle tube 8 fixedly installed on one side. A steam engine 10 and a filter mechanism 2 are fixedly installed inside the filter housing 1. One end of the large particle tube 6 and the small particle tube 8 extends into the interior of the filter mechanism 2. The output end of the steam engine 10 is connected to a steam pipe 11, and one end of the steam pipe 11 extends into the interior of the small particle tube 8. Adjustment mechanism 3 includes an adjustment sleeve 20 fixedly connected inside the large particle tube 6 and the small particle tube 8. One end of the adjustment sleeve 20 is fixedly connected to an adjustment rubber band 21. An adjustment piece 19 is slidably connected inside the adjustment sleeve 20. The outer sides of the two adjustment sleeves 20 respectively abut against the inner walls of the adjacent large particle tube 6 and small particle tube 8. The filtration mechanism 2 includes a filter box 9 fixedly installed inside the filter housing 1. Three cooling plates 26 are fixedly installed on one side of the inner wall of the filter box 9, and scrapers 28 are slidably connected to one side of each of the three cooling plates 26. The bottom of the filter box 9 is connected to the filter housing 41. The bottom of the inner wall of the filter housing 1 is fixedly installed with a filter pump 42. The input end of the filter pump 42 is connected to the output end of the filter housing 41. The output end of the filter pump 42 is connected to the exhaust shell 4.

2. The air filtration system for a wood-based panel processing plant according to claim 1, characterized in that: The adjustment mechanism 3 also includes an adjustment frame 12 fixedly connected inside the large particle tube 6 and the small particle tube 8. An adjustment cylinder 13 is fixedly connected to one side of the adjustment frame 12. An adjustment rod 14 is slidably connected to one end of the adjustment cylinder 13. An adjustment spring 15 is fixedly connected inside the adjustment cylinder 13. One end of the adjustment spring 15 is fixedly connected to one end of the adjustment rod 14. The adjustment plates 19 are respectively fixedly sleeved on the outside of the adjacent adjustment rods 14.

3. The air filtration system for a wood-based panel processing plant according to claim 2, characterized in that: Both the large particle tube 6 and the small particle tube 8 are fixedly connected to a storage shell 17. The two storage shells 17 are connected to the same storage tube 22. One side of each of the two storage shells 17 is connected to a storage bladder 18. One end of each of the two storage bladders 18 abuts against one end of a nearby adjusting rod 14. The outside of each of the two adjusting rods 14 is rotatably connected to an adjusting fan 16.

4. The air filtration system for a wood-based panel processing plant according to claim 1, characterized in that: One end of the large particle tube 6 is connected to the outer tube 23, and one end of the small particle tube 8 extends into the interior of the outer tube 23. A venturi 24 is fixedly connected inside the small particle tube 8. An air guide block 25 is fixedly connected to one side of the inner wall of the filter box 9. A drawer 29 is slidably connected to the bottom of the filter box 9. One end of the large particle tube 6 and the small particle tube 8 are respectively connected to the large particle shell 5 and the small particle shell 7.

5. The air filtration system for a wood-based panel processing plant according to claim 1, characterized in that: The bottom of the filter box 9 is connected to a drive tube 30, the bottom of the drive tube 30 is connected to the input end of the filter box 41, the drive tube 30 is fixedly connected to a drive frame 31 and a retainer 34, the top of the drive frame 31 is rotatably connected to a drive rod 32, the drive rod 32 is rotatably connected inside the retainer 34, the drive rod 32 is fixedly sleeved with a drive fan 33, and the top of the drive rod 32 is fixedly connected to a gear 35.

6. The air filtration system for a wood-based panel processing plant according to claim 5, characterized in that: The bottom of the filter box 9 is fixedly connected to a limiting frame 36, and the top of the limiting frame 36 is rotatably connected to a belt 37. The outside of the gear 35 meshes with the outside of the belt 37. The top of the belt 37 is rotatably connected to a movable frame 27, and the scraper 28 is movably inserted into the movable frame 27. The top of the limiting frame 36 is fixedly connected to a rubber plate 38, and one side of the rubber plate 38 is adapted to the outside of the movable frame 27.

7. An air filtration system for a wood-based panel processing plant according to claim 6, characterized in that: A limiting block 39 is fixedly connected to one side of the inner wall of the filter box 9, and a sliding block 40 is slidably connected to one side of the limiting block 39. The movable frame 27 is slidably connected inside the sliding block 40.