Filter cartridge dust remover convenient for replacing filter cartridge

Abstract

The utility model relates to a filter cartridge dust remover convenient for replacing a filter cartridge, which comprises a dust remover and a filter cartridge, a mounting plate is arranged in the dust remover, an air hole is formed in the mounting plate, and the filter cartridge dust remover further comprises a lantern ring; the threaded pipe is connected to the lead screw in a threaded mode, and the grippers are evenly distributed along the circumference. And in the ununfolded state, the free end of the Z-shaped rod is kept folded and does not make contact with the mounting plate. As the corner of the bottom of the Z-shaped rod is ingeniously hinged to the top wall of the filter cartridge, the threaded pipe cannot rotate along with the lead screw and can only move in the axial direction along with driving force generated by rotation of the lead screw, and ascending or descending is achieved. When the threaded pipe is pressed downwards, the corner of the Z-shaped rod is stressed through ingenious pushing of the hinge rod, and the free end of the Z-shaped rod is forced to penetrate through an air hole of the mounting plate to stretch outwards till the free end tightly abuts against the upper top wall of the mounting plate. At the moment, the flange at the top of the filter cartridge is tightly attached to the inner wall of the dust remover, and the gripper provides strong mechanical locking force, so that the filter cartridge is effectively prevented from shaking or falling off.

Description

Technical Field

[0001] This utility model relates to the field of bag filter technology, specifically to a filter cartridge dust collector that facilitates filter cartridge replacement. Background Technology

[0002] As a core component of a dust collector, the quality of its fixing technology directly affects the overall operating efficiency and service life of the equipment. In existing technology, baghouse dust collectors have an internal mounting plate that divides the collector's interior into two main areas: a cleanroom and a treatment room. The mounting plate has multiple mounting holes, each securely holding the filter cartridge in place with multiple fasteners. However, this design is quite cumbersome when replacing the filter cartridge, requiring the removal of multiple fasteners one by one. Especially under harsh operating conditions of high temperature and high dust, this operation is not only time-consuming and labor-intensive but also significantly reduces the equipment's maintenance efficiency. Utility Model Content

[0003] The main objective of this invention is to provide a cartridge dust collector that facilitates cartridge replacement, addressing the cumbersome process of replacing cartridges in existing technologies, which requires disassembling multiple fasteners one by one. This is particularly problematic under harsh conditions of high temperature and high dust, where such operation is not only time-consuming and labor-intensive but also significantly reduces equipment maintenance efficiency.

[0004] To achieve the above objectives, this utility model provides a filter cartridge dust collector that facilitates filter cartridge replacement, comprising a dust collector and a filter cartridge, an installation plate inside the dust collector having air holes, and a retaining ring;

[0005] The collar is coaxially mounted on the top wall of the filter cartridge via a bracket, and the inner ring is coaxially fixed with a bearing. The inner ring of the bearing is coaxially fixed with a shaft. The bottom end of the shaft is coaxially connected to a lead screw, and a threaded pipe is screwed onto the lead screw.

[0006] Multiple grippers are arranged circumferentially on the threaded pipe;

[0007] The gripper includes a Z-shaped bar, a hinge bar, and a lug plate;

[0008] One end of the ear plate is fixed to the outer wall of the threaded pipe, and the two ends of the hinge rod are respectively hinged to one end of the Z-shaped rod and the other end of the ear plate;

[0009] The corner of the Z-shaped rod at the bottom is hinged to the top wall of the filter cartridge, and the other end passes through the air hole to abut against the safety plate.

[0010] Preferably, the mounting plate divides the dust collector's inner cavity into a clean cavity and a filter cavity, with the filter cartridge located inside the filter cavity.

[0011] Preferably, the mounting plate has multiple air holes, and a filter cartridge is installed at each air hole.

[0012] Preferably, the top of the shaft is coaxially connected to the drainage cone cap, with the concave end of the drainage cone cap facing the air hole.

[0013] Preferably, the support includes multiple connecting rods, and the two ends of each connecting rod are fixedly connected to the top wall of the filter cartridge and the top wall of the collar, respectively.

[0014] Preferably, the filter cartridge includes an upper end cover, a lower end cover, a mesh cylinder, and a filter element. The upper end cover and the lower end cover are coaxially provided with annular grooves. The two ends of the mesh cylinder and the filter cartridge are respectively inserted into the two annular grooves. The filter cartridge is sleeved around the mesh cylinder. The inner annular wall of the annular groove is provided with external threads.

[0015] Both ends of the mesh tube are circumferentially threaded with internal threads, and the two internal threads are respectively screwed into the external threads of the upper end cap and the lower end cap.

[0016] A rubber ring is coaxially installed on the top wall of the upper end cover. The end of the rubber ring away from the upper end cover abuts against the mounting plate and is connected to the air hole.

[0017] The lower end cover is fixed with a sealing plate.

[0018] Preferably, both the upper and lower end caps include a first pipe flange and a second pipe flange. The pipe body of the first pipe flange is fitted inside the pipe body of the second pipe flange, and the distance between the two pipe bodies forms an annular groove. External threads are opened on the circumference of the outer annular wall of the first pipe flange.

[0019] The flanges of the first pipe flange abut against the flanges of the second pipe flange, and the two are connected by fasteners.

[0020] Preferably, one end of the rubber ring is coaxially fitted with the ring body, and the fasteners include multiple bolts, which sequentially pass through the ring body or the sealing disc, the flange of the first pipe flange, and the flange of the second pipe flange and are connected to the nuts.

[0021] Preferably, the filter element is made of polypropylene fiber or glass fiber.

[0022] The beneficial effects of the above scheme are:

[0023] The filter cartridge is vertically installed inside the dust collector, with the collar coaxially mounted on the top wall of the cartridge via a bracket. The lead screw and shaft are coaxially connected, and the threaded tube is screwed onto the lead screw. Multiple grippers are evenly distributed around the circumference. In the unfolded state, the free end of the Z-shaped rod remains recessed and does not contact the mounting plate. Operators can operate it manually or use tools to rotate the shaft, thereby driving the lead screw to rotate flexibly. Because the corner at the bottom of the Z-shaped rod is cleverly hinged to the top wall of the filter cartridge, the threaded tube cannot rotate with the lead screw; it can only move axially with the driving force generated by the rotation of the lead screw, achieving upward or downward movement. When the threaded tube is pressed down, the hinge cleverly pushes the corner of the Z-shaped rod, forcing its free end to extend outward through the air hole of the mounting plate until it tightly abuts against the top wall of the mounting plate. At this time, the flange at the top of the filter cartridge is tightly fitted to the inner wall of the dust collector, while the grippers provide strong mechanical locking force, effectively preventing the filter cartridge from shaking or falling off. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention with the safety plate added;

[0026] Figure 2 This is a schematic diagram of the filter cartridge structure in the exploded state of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the present invention with the safety plate section in cross-section.

[0028] Figure 4 yes Figure 3 A magnified structural diagram of region A.

[0029] Explanation of reference numerals in the attached figures

[0030] 11. Mounting plate; 110. Air pores;

[0031] 20. Filter cartridge; 21. Upper end cover; 22. Lower end cover; 23. Mesh cylinder; 24. Filter element; 205. Annular groove; 200. External thread; 201. Internal thread; 25. Rubber ring; 250. Ring body; 26. Sealing disc; 202. First pipe flange; 203. Second pipe flange;

[0032] 30. Collar; 31. Bearing; 32. Shaft; 33. Lead screw; 34. Threaded pipe;

[0033] 40. Bracket; 41. Connecting rod;

[0034] 50. Gripper; 51. Z-shaped bar; 52. Hinge bar; 53. Ear plate;

[0035] 60. Drainage cone cap. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0037] like Figures 1-4 As shown, this embodiment provides a cartridge dust collector that facilitates cartridge replacement, including a dust collector (not shown) and a filter cartridge 20. A mounting plate 11 is horizontally fixed inside the dust collector, dividing the inner cavity of the dust collector into a clean cavity (not shown) and a filter cavity (not shown). The filter cartridge 20 is located in the filter cavity. Multiple air holes 110 are formed on the mounting plate 11, and a filter cartridge 20 is installed at each air hole 110. Figure 3 , Figure 4 As shown, the cartridge dust collector, which facilitates cartridge replacement, also includes a collar 30. The collar 30 is coaxially mounted on the top wall of the cartridge 20 via a bracket 40, and a bearing 31 is coaxially fixed to the inner ring of the collar 30. The bracket 40 includes multiple connecting rods 41, and the two ends of each connecting rod 41 are fixedly connected to the top wall of the cartridge 20 and the top wall of the collar 30, respectively. A shaft 32 is coaxially fixed to the inner ring of the bearing 31, and the bottom end of the shaft 32 is coaxially connected to a lead screw 33. A threaded tube 34 is screwed onto the lead screw 33. Multiple grippers 50 are arranged circumferentially on the threaded tube 34. Each gripper 50 includes a Z-shaped rod 51, a hinge rod 52, and an ear plate 53. One end of the ear plate 53 is fixed to the outer wall of the threaded tube 34, and the two ends of the hinge rod 52 are hinged to one end of the Z-shaped rod 51 and the other end of the ear plate 53, respectively. The corner of the Z-shaped rod 51 located at the bottom is hinged to the top wall of the filter cartridge 20, and the other end of the Z-shaped rod 51 passes through the air hole 110 and can abut against the safety plate 11.

[0038] like Figure 2 , Figure 3As shown, the filter cartridge 20 includes an upper end cover 21, a lower end cover 22, a mesh cylinder 23, and a filter element 24. The filter element 24 is made of polypropylene fiber or glass fiber. The upper end cover 21 and the lower end cover 22 have coaxial annular grooves 205. The two ends of the mesh cylinder 23 and the filter cartridge 20 are respectively inserted into the two annular grooves 205. The filter cartridge 20 is sleeved around the mesh cylinder 23. External threads 200 are formed on the inner circumference of the annular groove 205. Internal threads 201 are formed on the circumference of both ends of the mesh cylinder 23. The two internal threads 201 are screwed to the external threads 200 of the upper end cover 21 and the lower end cover 22, respectively. A rubber ring 25 is coaxially provided on the top wall of the upper end cover 21. The end of the rubber ring 25 away from the upper end cover 21 abuts against the mounting plate 11, and the rubber ring 25 communicates with the air hole 110. A sealing disc 26 is fixedly provided on the lower end cover 22. The sealing disc 26 is made of existing rubber material. Both the upper end cover 21 and the lower end cover 22 include a first pipe flange 202 and a second pipe flange 203. The pipe body of the first pipe flange 202 is fitted inside the pipe body of the second pipe flange 203, and the distance between the pipe bodies of the two forms an annular groove 205. The outer annular wall of the first pipe flange 202 has an external thread 200. The flange of the first pipe flange 202 abuts against the flange of the second pipe flange 203, and the two are connected by fasteners (not shown). One end of the outer annular wall of the rubber ring 25 is coaxially fitted with a ring body 250. The fasteners include multiple bolts, which sequentially pass through the ring body 250 or the sealing plate 26, the flange of the first pipe flange 202, and the flange of the second pipe flange 203, and are connected to a nut.

[0039] The filter cartridge 20 is vertically installed inside the dust collector, and the collar 30 is coaxially mounted on the top wall of the filter cartridge 20 via a bracket 40. The lead screw 33 is coaxially connected to the shaft 32, and the threaded tube 34 is screwed onto the lead screw 33. Multiple grippers 50 are evenly distributed around the circumference. In the undeployed state, the free end of the Z-shaped rod 51 remains recessed and does not contact the mounting plate 11. Operators can operate it manually or use tools to rotate the shaft 32, thereby driving the lead screw 33 to rotate flexibly. Because the corner at the bottom of the Z-shaped rod 51 is cleverly hinged to the top wall of the filter cartridge 20, the threaded tube 34 cannot rotate with the lead screw 33; it can only move axially with the driving force generated by the rotation of the lead screw 33, achieving upward or downward movement. When the threaded tube 34 is pressed down, the Z-shaped rod 51 is forcefully pushed by the hinge rod 52, forcing its free end to extend outward through the air hole 110 of the mounting plate 11 until it tightly abuts against the top wall of the mounting plate 11. One end of each Z-shaped rod 51 abuts against the annular wall of the air hole, and the multiple Z-shaped rods 51 support each other, forming a supporting force, thus fixing the filter cartridge 20. At this time, the flange at the top of the filter cartridge 20 is tightly fitted to the inner wall of the dust collector, while the gripper 50 provides a strong mechanical locking force, effectively preventing the filter cartridge 20 from shaking or falling off. This design allows for fine adjustment of the gripper 50's locking force by rotating the shaft 32, ensuring the filter cartridge 20 remains pressed tightly, effectively avoiding the risk of air leakage. Locking or releasing the filter cartridge 20 can be completed simply by rotating the shaft 32, without disassembling multiple bolts or clamps, significantly reducing maintenance time, and is especially suitable for high-temperature and high-dust environments.

[0040] like Figure 4 As shown, the top of the shaft 32 is coaxially connected to the flow-guiding conical cap 60, with the constricted end of the flow-guiding conical cap 60 facing the air hole 110. Pulsed high-pressure gas is injected into the flow-guiding conical cap 60 and guided into the filter cartridge 20. The pulse valve ejects high-pressure gas, which strikes the annular wall of the flow-guiding conical cap 60 and is guided into the inner cavity of the cartridge. The high-pressure gas rapidly expands within the filter cartridge 20, generating strong pressure fluctuations that cause the dust layer adhering to the outer surface of the filter cartridge 20 to be impacted and peeled off. The annular wall reflection effect of the flow-guiding conical cap 60 further enhances the gas turbulence effect, ensuring that the cleaning energy fully covers the entire length of the filter cartridge 20. The peeled dust falls into the ash hopper under the action of gravity and secondary airflow, completing the efficient cleaning process.

[0041] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A cartridge dust collector for easy cartridge replacement, comprising a dust collector and a filter cartridge, wherein a safety plate is provided inside the dust collector, and the safety plate has air holes, characterized in that, It also includes collars; The collar is coaxially mounted on the top wall of the filter cartridge via a bracket, and a bearing is coaxially fixed to the inner ring. A shaft is coaxially fixed to the inner ring of the bearing, and the bottom end of the shaft is coaxially connected to a lead screw. A threaded pipe is screwed onto the lead screw. Multiple grippers are arranged circumferentially on the threaded pipe; The gripper includes a Z-shaped rod, a hinge rod, and a lug plate; One end of the ear plate is fixed to the outer wall of the threaded tube, and the two ends of the hinge rod are respectively hinged to one end of the Z-shaped rod and the other end of the ear plate; The corner of the Z-shaped rod located at the bottom is hinged to the top wall of the filter cartridge, and the other end passes through the air hole and can abut against the safety plate.

2. The filter cartridge dust collector with easy filter cartridge replacement according to claim 1, characterized in that, The safety plate divides the inner cavity of the dust collector into a clean cavity and a filter cavity, and the filter cartridge is located in the filter cavity.

3. The cartridge dust collector with easy cartridge replacement according to claim 1, characterized in that, The plate has multiple air holes, and a filter cartridge is installed at each air hole.

4. The cartridge dust collector with easy cartridge replacement according to claim 2, characterized in that, The top of the shaft is coaxially connected to a flow-guiding conical cap, with the concave end of the flow-guiding conical cap facing the air hole.

5. The cartridge dust collector with easy cartridge replacement according to claim 1, characterized in that, The support includes multiple connecting rods, and the two ends of each connecting rod are fixedly connected to the top wall of the filter cartridge and the top wall of the collar, respectively.

6. The cartridge dust collector with easy cartridge replacement according to any one of claims 1-5, characterized in that, The filter cartridge includes an upper end cover, a lower end cover, a mesh cylinder, and a filter element. The upper end cover and the lower end cover are coaxially provided with annular grooves. The two ends of the mesh cylinder and the filter cartridge are respectively inserted into the two annular grooves. The filter cartridge is sleeved around the mesh cylinder. The inner annular wall of the annular groove is provided with external threads. Both ends of the mesh tube are circumferentially threaded with internal threads, and the two internal threads are respectively screwed into the external threads of the upper end cover and the lower end cover. A rubber ring is coaxially disposed on the top wall of the upper end cover. The end of the rubber ring away from the upper end cover abuts against the mounting plate and communicates with the air hole. The lower end cover is fixedly equipped with a sealing plate.

7. The cartridge dust collector with easy cartridge replacement according to claim 6, characterized in that, Both the upper end cover and the lower end cover include a first pipe flange and a second pipe flange. The pipe body of the first pipe flange is sleeved inside the pipe body of the second pipe flange, and the distance between the two pipe bodies forms the annular groove. The external thread is opened on the circumference of the outer annular wall of the first pipe flange. The flange of the first pipe flange abuts against the flange of the second pipe flange, and the two are connected by fasteners.

8. The cartridge dust collector with easy cartridge replacement according to claim 7, characterized in that, One end of the rubber ring is coaxially fitted with a ring body on its outer ring wall. The fastener includes multiple bolts, which sequentially pass through the ring body or the sealing disc, the flange of the first pipe flange, and the flange of the second pipe flange to connect to the nut.

9. The cartridge dust collector with easy cartridge replacement according to claim 6, characterized in that, The filter element is made of polypropylene fiber or glass fiber.

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