Dust removal mechanism of exhaust gas treatment device

Abstract

This utility model discloses a dust removal mechanism for a waste gas treatment device, including a mounting box. An air inlet is fixedly installed on the mounting box. An mounting plate is fixedly installed inside the mounting box. Multiple sets of negative pressure fans are fixedly installed on the mounting box. Multiple sets of equidistantly distributed filter cartridges are fixedly installed on the mounting plate. Multiple sets of mounting rods corresponding to the filter cartridges are fixedly installed inside the mounting box. A first push rod is slidably installed inside the mounting rod. A second push rod is slidably installed inside the first push rod. A slide frame is slidably installed on the second push rod. Four sets of symmetrically distributed arc-shaped rods are provided between the slide frame and the bottom end of the second push rod. The slide frame is driven by a cam to slide along the slide frame, causing the four sets of arc-shaped rods to generate high-frequency bounce under the action of springs, intermittently striking the inner wall of the filter cartridge, forming impact vibration, and effectively shaking off deeply attached dust.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a dust removal mechanism of a waste gas treatment device. Background Technology

[0002] In industrial production processes, such as metallurgy, chemical industry, building materials, power generation, and waste incineration, large amounts of industrial waste gas containing solid particulate matter are inevitably generated. This dust not only pollutes the environment, affects air quality, and harms human health, but also damages production equipment, reduces product quality, and may even cause safety accidents such as explosions. Therefore, efficient dust removal treatment of industrial waste gas is an essential requirement to meet increasingly stringent environmental emission regulations, achieve green production, and ensure operational safety. As the core component of the waste gas treatment system, the performance of dust removal equipment directly affects the cleanliness of the final emissions. Currently, various dust removal technologies, such as bag filters, cartridge filters, electrostatic precipitators, cyclone separators, and wet scrubbing, are widely used. Among them, filtration-based dust removal, especially pulse-jet bag filters and cartridge filters, has become one of the mainstream choices due to its high efficiency, stability, and strong adaptability.

[0003] In existing technologies, pulse jet cleaning is often used to remove dust from filter mechanisms. Traditional pulse jet cleaning often uses fixed nozzles. During use, the fixed nozzles need to cover the entire filtration area, which often requires a complex multi-pipeline system. This results in redundant structure and inconvenient maintenance. Furthermore, fixed jet points make it difficult to achieve an absolutely uniform distribution of cleaning force on the filter media surface. This can easily lead to over-spraying in local areas, causing damage to the filter media, or under-spraying, resulting in dust residue and caking, which affects filtration efficiency and service life. Utility Model Content

[0004] The purpose of this invention is to provide a dust removal mechanism for a waste gas treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust removal mechanism for a waste gas treatment device, comprising a mounting box, an air inlet fixedly mounted on the mounting box, a mounting plate fixedly mounted inside the mounting box, multiple sets of negative pressure fans fixedly mounted on the mounting box, the mounting plate located between the air inlet and the negative pressure fans, multiple sets of equidistantly distributed filter cartridges fixedly mounted on the mounting plate, each filter cartridge having an air outlet corresponding to a negative pressure fan, and multiple sets of mounting rods corresponding to the filter cartridges fixedly mounted inside the mounting box, with a first push rod slidably mounted inside each mounting rod. A second push rod is slidably installed inside the rod, and a slide bracket is slidably installed on the second push rod. Four sets of symmetrically distributed arc-shaped rods are provided between the slide bracket and the bottom end of the second push rod. A slide rod is fixedly installed inside the second push rod, and a cam is rotatably installed on the second push rod. The cam is fitted with the slide bracket. A mounting frame is slidably installed inside the mounting box. Multiple sets of mounting seats corresponding to the filter cartridge are rotatably installed on the mounting frame. The mounting seats are slidably sleeved with the filter cartridge. A rotating frame is rotatably installed inside the mounting seat. Four sets of annularly distributed adjusting frames are rotatably installed inside the mounting seat. A roller brush is rotatably installed on each of the four sets of adjusting frames.

[0006] As a further preferred embodiment of this technical solution, a screw is rotatably installed inside the first push rod, the lower end of the screw passes through the first push rod and is threadedly connected to the first push rod, a spiral tube is rotatably installed inside the first push rod, the lower end of the spiral tube passes through the second push rod and is threadedly connected to the second push rod, two sets of symmetrically distributed keyways are provided on the screw, two sets of symmetrically distributed key blocks are provided inside the spiral tube, the key blocks are correspondingly arranged with the keyways, and the spiral tube is slidably sleeved with the screw through the keyways and key blocks.

[0007] As a further preferred embodiment of this technical solution, both ends of the arc-shaped rod are rotatably connected to the second push rod and the slide frame via rotating shafts. The slide frame is slidably sleeved with the slide rod, and two sets of symmetrically distributed springs are sleeved on the slide rod. The two ends of the two sets of springs are respectively fixedly connected to the slide frame and the second push rod.

[0008] As a further preferred embodiment of this technical solution, a lead screw is rotatably installed inside the mounting box, the lead screw passes through the mounting frame and is threadedly connected to the mounting frame, a third toothed ring is sleeved on the mounting base, and a drive wheel that meshes with the third toothed ring is rotatably installed inside the mounting frame, the drive wheel meshing with the third toothed ring.

[0009] As a further preferred embodiment of this technical solution, a second gear ring is sleeved on the rotating frame, and a second gear is sleeved on each of the four sets of adjusting frames. Multiple sets of the second gears are meshed with the second gear ring. A rack is slidably installed in the mounting base, and the rack is meshed with a set of second racks. A cylinder is fixedly installed in the mounting base, and the rack is fixedly connected to the output end of the cylinder piston rod.

[0010] As a further preferred embodiment of this technical solution, a discharge seat is fixedly installed below the installation box, a dust collection box is threadedly connected below the discharge seat, an installation ring is rotatably installed inside the discharge seat, multiple sets of annularly distributed closed plates are provided on the discharge seat, and a first toothed ring is sleeved on the installation ring.

[0011] As a further preferred embodiment of this technical solution, all of the multiple sets of closing plates are rotatably connected to the discharge seat via mounting shafts, and each of the multiple sets of mounting shafts is fitted with a first gear. The multiple sets of mounting shafts are distributed in a ring around the mounting ring, and the multiple sets of first gears are meshed with a first gear ring.

[0012] This utility model provides a dust removal mechanism for a waste gas treatment device, which has the following beneficial effects:

[0013] (1) This utility model uses a cam to drive the slide to slide along the slide rod, so that the four sets of arc rods generate high-frequency bounce under the action of springs, intermittently knocking the inner wall of the filter cartridge, forming impact vibration, which effectively shakes off the deeply attached dust. This structure avoids the blind spots of traditional fixed jet cleaning, and at the same time, the elastic contact of the arc rods reduces mechanical damage to the filter material, ensuring the long-term stable operation of the filter cartridge.

[0014] (2) This utility model utilizes a cylinder to drive a rack and pinion linkage adjustment frame, enabling four sets of roller brushes to synchronously adjust their contact pressure with the outer wall of the filter cartridge. Under the meshing transmission of the drive wheel and the third gear ring, the mounting base is rotated, causing the roller brushes to roll and clean along the outer wall of the filter cartridge. This dynamic cleaning method can thoroughly remove surface-mounted dust, and is especially suitable for high humidity and high viscosity dust conditions, significantly improving dust removal efficiency and extending the service life of the filter cartridge. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the mounting box of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 This is a schematic diagram showing the structural separation of the second push rod and the arc-shaped rod of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged view of the structure at point -B;

[0020] Figure 6 This is a schematic diagram showing the structural separation of the mounting base and mounting frame of this utility model;

[0021] In the diagram: 1. Mounting box; 2. Air inlet; 3. Negative pressure fan; 4. Mounting plate; 5. Filter cartridge; 6. Air outlet; 7. Discharge seat; 8. Mounting ring; 9. First gear ring; 10. Closing plate; 11. Mounting shaft; 12. First gear; 13. Mounting rod; 14. First push rod; 15. Second push rod; 16. Screw; 17. Keyway; 18. Screw tube; 19. Key block; 20. Arc rod; 21. Slide; 22. Slide rod; 23. Spring; 24. Cam; 25. Mounting bracket; 26. Lead screw; 27. Rotating bracket; 28. Second gear ring; 29. ​​Adjusting bracket; 30. Second gear; 31. Rack; 32. Cylinder; 33. Roller brush; 34. Third gear ring; 35. Drive wheel; 36. Mounting seat; 37. Dust collection box. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution as follows: Figures 1-5As shown, in this embodiment, a dust removal mechanism of an exhaust gas treatment device includes a mounting box 1. An air inlet 2 is fixedly mounted on the mounting box 1. A mounting plate 4 is fixedly mounted inside the mounting box 1. Multiple sets of negative pressure fans 3 are fixedly mounted on the mounting box 1. The mounting plate 4 is located between the air inlet 2 and the negative pressure fans 3. Multiple sets of equidistantly distributed filter cartridges 5 are fixedly mounted on the mounting plate 4. Each filter cartridge 5 has an air outlet 6, which corresponds to one of the negative pressure fans 3. Multiple sets of mounting rods 13, corresponding to the filter cartridges 5, are fixedly mounted inside the mounting box 1. A first push rod 14 is slidably mounted inside each mounting rod 13, and a second push rod 15 is slidably mounted inside each first push rod 14. A slide frame 21 is slidably mounted on the first push rod 15. Four sets of symmetrically distributed arc-shaped rods 20 are provided between the slide frame 21 and the bottom end of the second push rod 15. A slide rod 22 is fixedly mounted inside the second push rod 15. A cam 24 is rotatably mounted on the second push rod 15, and the cam 24 is fitted against the slide frame 21. A mounting frame 25 is slidably mounted inside the mounting box 1. Multiple sets of mounting seats 36 corresponding to the filter cartridge 5 are rotatably mounted on the mounting frame 25. The mounting seats 36 are slidably sleeved with the filter cartridge 5. A rotating frame 27 is rotatably mounted inside the mounting seat 36. Four sets of annularly distributed adjusting frames 29 are rotatably mounted inside the mounting seat 36. A roller brush 33 is rotatably mounted on each of the four adjusting frames 29. A screw 16 is rotatably mounted inside the first push rod 14. The lower end of the screw 16 passes through the first push rod 14 and is threadedly connected to the first push rod 14. A screw tube 18 is rotatably mounted inside the first push rod 14. The lower end of the screw tube 18 passes through the second push rod 15 and is threadedly connected to the second push rod 15. Two sets of symmetrically distributed keyways 17 are provided on the screw 16. Two sets of symmetrically distributed key blocks 19 are provided inside the screw tube 18. The key blocks 19 are correspondingly set with the keyways 17. The screw tube 18 is slidably sleeved with the screw 16 through the keyways 17 and key blocks 19. Both ends of the arc-shaped rod 20 are rotatably connected to the second push rod 15 and the slide 21 through rotating shafts. The slide 21 is slidably sleeved with the slide rod 22. There are two sets of symmetrically distributed springs 23. The two ends of the two sets of springs 23 are fixedly connected to the slide 21 and the second push rod 15 respectively. When the negative pressure fan 3 is started, the exhaust gas enters the installation box 1 through the air inlet 2. The airflow passes through the filter cartridge 5 for preliminary filtration. During dust removal, the first push rod 14 and the second push rod 15 extend into the inside of the filter cartridge 5 under the drive of the screw 16 and the solenoid 18. The cam 24 rotates and pushes the slide 21 to slide along the slide rod 22, compressing the spring 23 and driving the four sets of arc rods 20 to periodically expand and contract. The arc rods 20 bounce the inner wall of the filter cartridge 5 at high frequency, generating mechanical vibration, which loosens and falls off the deeply attached dust, while avoiding the damage to the filter material caused by traditional pulse jet cleaning.

[0024] like Figure 2 and Figure 6As shown, a lead screw 26 is rotatably installed inside the mounting box 1. The lead screw 26 passes through the mounting frame 25 and is threadedly connected to the mounting frame 25. A third gear ring 34 is sleeved on the mounting base 36. A drive wheel 35, meshing with the third gear ring 34, is rotatably installed inside the mounting frame 25. The drive wheel 35 meshes with the third gear ring 34. A second gear ring 28 is sleeved on the rotating frame 27. A second gear 30 is sleeved on each of the four sets of adjusting frames 29. Multiple sets of second gears 30 mesh with the second gear ring 28. A rack 31 is slidably installed inside the mounting base 36. The rack 31 meshes with a set of second racks 31. A cylinder 32 is fixedly installed inside the mounting base 36. The rack 31 is fixedly connected to the output end of the piston rod of the cylinder 32. A discharge seat 7 is fixedly installed below the mounting box 1. A dust collection box 37 is threadedly sleeved below the discharge seat 7. A mounting ring 8 is rotatably installed inside the discharge seat 7. Multiple sets of annularly distributed closed plates 1 are provided on the discharge seat 7. 0. A first toothed ring 9 is fitted onto the mounting ring 8. Multiple sets of closing plates 10 are rotatably connected to the discharge seat 7 via mounting shafts 11. A first gear 12 is fitted onto each of the multiple sets of mounting shafts 11. The multiple sets of mounting shafts 11 are distributed in a ring around the mounting ring 8. The multiple sets of first gears 12 are meshed with the first toothed ring 9. The mounting frame 25 descends along the outer wall of the filter cartridge 5 under the drive of the lead screw 26. The cylinder 32 pushes the rack 31 to cooperate with the second gear 30 and the second toothed ring 28 that are meshed with it, so that the four sets of adjusting frames 29 and the roller brush 33 on the adjusting frames 29 adaptively fit the surface of the filter cartridge 5. The drive wheel 35 meshes with the third toothed ring 34 to drive the mounting seat 36 to rotate, so that the roller brush 33 rolls on the outer wall of the filter cartridge 5, thoroughly removing the residual caking dust after shaking. This rotary cleaning structure, combined with the adjustable pressure design, ensures uniform cleaning effect, is suitable for different dust characteristics, improves filtration efficiency, and extends the service life of the filter cartridge 5.

[0025] This utility model provides a dust removal mechanism for a waste gas treatment device. The specific working principle is as follows: When the negative pressure fan 3 starts, waste gas enters the mounting box 1 through the inlet 2. The airflow passes through the filter cartridge 5 for preliminary filtration. During dust removal, the first push rod 14 and the second push rod 15 extend into the filter cartridge 5 under the drive of the screw 16 and the solenoid 18. The cam 24 rotates, pushing the slide 21 to slide along the slide rod 22, compressing the spring 23 and driving the four sets of arc-shaped rods 20 to periodically expand and contract. The arc-shaped rods 20 frequently bounce against the inner wall of the filter cartridge 5, generating mechanical vibration, causing deeply attached dust to loosen and fall off, while avoiding the filtration problems caused by traditional pulse jet cleaning. When the material is damaged, the mounting bracket 25 descends along the outer wall of the filter cartridge 5 under the drive of the lead screw 26. The cylinder 32 pushes the rack 31 to engage with the second gear 30 and the second gear ring 28, which mesh with it, so that the four sets of adjusting brackets 29 and the roller brushes 33 on the adjusting brackets 29 adaptively fit the surface of the filter cartridge 5. The drive wheel 35 meshes with the third gear ring 34 to drive the mounting base 36 to rotate, so that the roller brushes 33 roll on the outer wall of the filter cartridge 5, thoroughly removing the residual caking dust after shaking. This rotary cleaning structure, combined with the adjustable pressure design, ensures uniform cleaning effect, is suitable for different dust characteristics, improves filtration efficiency, and extends the service life of the filter cartridge 5.

[0026] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal mechanism for a waste gas treatment device, comprising a mounting box (1), characterized in that: An air inlet (2) is fixedly installed on the mounting box (1). An mounting plate (4) is fixedly installed inside the mounting box (1). Multiple sets of negative pressure fans (3) are fixedly installed on the mounting box (1). The mounting plate (4) is located between the air inlet (2) and the negative pressure fans (3). Multiple sets of equally spaced filter cartridges (5) are fixedly installed on the mounting plate (4). Each filter cartridge (5) has an air outlet (6). The air outlet (6) is correspondingly arranged with the negative pressure fans (3). Multiple sets of mounting rods (13) corresponding to the filter cartridges (5) are fixedly installed inside the mounting box (1). A first push rod (14) is slidably installed inside the mounting rod (13). A second push rod (15) is slidably installed inside the first push rod (14). A slide bracket (2) is slidably installed on the second push rod (15). 1) Four sets of symmetrically distributed arc-shaped rods (20) are provided between the bottom end of the slide (21) and the second push rod (15). A slide rod (22) is fixedly installed in the second push rod (15). A cam (24) is rotatably installed on the second push rod (15). The cam (24) is fitted with the slide (21). An installation frame (25) is slidably installed in the installation box (1). Multiple sets of installation seats (36) corresponding to the filter cartridge (5) are rotatably installed on the installation frame (25). The installation seat (36) is slidably sleeved with the filter cartridge (5). A rotating frame (27) is rotatably installed in the installation seat (36). Four sets of annularly distributed adjustment frames (29) are rotatably installed in the installation seat (36). A roller brush (33) is rotatably installed on each of the four sets of adjustment frames (29).

2. The dust removal mechanism of the waste gas treatment device according to claim 1, characterized in that: A screw (16) is rotatably installed inside the first push rod (14). The lower end of the screw (16) passes through the first push rod (14) and is threadedly connected to the first push rod (14). A screw tube (18) is rotatably installed inside the first push rod (14). The lower end of the screw tube (18) passes through the second push rod (15) and is threadedly connected to the second push rod (15). Two sets of symmetrically distributed keyways (17) are provided on the screw (16). Two sets of symmetrically distributed key blocks (19) are provided inside the screw tube (18). The key blocks (19) are correspondingly arranged with the keyways (17). The screw tube (18) is slidably sleeved with the screw (16) through the keyways (17) and key blocks (19).

3. The dust removal mechanism of the waste gas treatment device according to claim 1, characterized in that: Both ends of the arc-shaped rod (20) are rotatably connected to the second push rod (15) and the slide (21) through a rotating shaft. The slide (21) is slidably sleeved with the slide rod (22). Two sets of symmetrically distributed springs (23) are sleeved on the slide rod (22). The two ends of the two sets of springs (23) are fixedly connected to the slide (21) and the second push rod (15) respectively.

4. The dust removal mechanism of the waste gas treatment device according to claim 1, characterized in that: A lead screw (26) is rotatably installed inside the mounting box (1). The lead screw (26) passes through the mounting frame (25) and is threadedly connected to the mounting frame (25). A third toothed ring (34) is sleeved on the mounting base (36). A drive wheel (35) that meshes with the third toothed ring (34) is rotatably installed inside the mounting frame (25). The drive wheel (35) meshes with the third toothed ring (34).

5. The dust removal mechanism of the waste gas treatment device according to claim 1, characterized in that: A second gear ring (28) is sleeved on the rotating frame (27), and a second gear (30) is sleeved on each of the four sets of adjusting frames (29). Multiple sets of the second gears (30) are meshed with the second gear ring (28). A rack (31) is slidably installed in the mounting base (36). The rack (31) is meshed with a set of second racks (31). A cylinder (32) is fixedly installed in the mounting base (36). The rack (31) is fixedly connected to the output end of the piston rod of the cylinder (32).

6. The dust removal mechanism of the waste gas treatment device according to claim 1, characterized in that: A discharge seat (7) is fixedly installed below the installation box (1). A dust collection box (37) is threadedly connected below the discharge seat (7). An installation ring (8) is rotatably installed inside the discharge seat (7). Multiple sets of annularly distributed closed plates (10) are provided on the discharge seat (7). A first toothed ring (9) is sleeved on the installation ring (8).

7. The dust removal mechanism of the waste gas treatment device according to claim 6, characterized in that: Multiple sets of closing plates (10) are rotatably connected to the discharge seat (7) via mounting shafts (11). Multiple sets of mounting shafts (11) are fitted with first gears (12). Multiple sets of mounting shafts (11) are distributed in a ring around the mounting ring (8). Multiple sets of first gears (12) are meshed with first gear rings (9).

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