A dust backflow prevention industrial dust collector

By incorporating vibration components and lifting mechanisms into the industrial dust collector, the problem of backflow caused by dust adhesion after prolonged use of the filter cloth is solved, enabling smooth air discharge and effective dust collection.

CN224474807UActive Publication Date: 2026-07-10南京海风环保科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
南京海风环保科技有限公司
Filing Date
2025-08-12
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

After prolonged use, dust tends to accumulate on the filter cloth of traditional industrial dust collectors, making it difficult for gas to escape. This can lead to dust backflow, affecting dust collection efficiency and polluting the outside air.

Method used

By setting up a vibration component, the metal mesh drives the collision block and the moving plate to collide with each other during reciprocating motion, generating vibration to remove dust from the filter cloth. Combined with the lifting mechanism, the metal mesh is driven to move up and down to ensure that air is discharged smoothly.

Benefits of technology

It effectively reduces filter cloth clogging, minimizes air backflow, reduces dust spillage, and ensures effective air purification.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses an industrial dust collector for preventing dust backflow, relating to the field of industrial dust collector technology. The utility model includes a dust collector housing, with an air inlet fixedly connected to the top left side of the housing, an exhaust pipe fixedly connected to the top center of the housing, and a baffle fixedly connected to the top right side of the housing. It also includes a filter mechanism disposed inside the exhaust pipe. When the metal mesh of this utility model reciprocates, it drives the collision block to move along with it. Since the sides of the collision block and the moving plate that are close to each other are both serrated, the collision block and the moving plate will continuously collide and vibrate. The resulting vibration is transmitted to the filter cloth, thereby shaking off the dust adhering to the filter cloth, reducing clogging, and allowing air to be discharged smoothly, significantly reducing air backflow and dust overflow.
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Description

Technical Field

[0001] This utility model belongs to the field of industrial dust collector technology, and in particular relates to an industrial dust collector that prevents dust backflow. Background Technology

[0002] A dust collector is a device used to collect, separate, and treat suspended particulate matter (such as dust, smoke, and ash) in the air. It is widely used in industries such as industrial, environmental protection, medical, and construction.

[0003] Traditional industrial dust collectors typically install filter cloths inside the exhaust ducts to filter dust and discharge the filtered clean air. However, as the filter cloths are used for a long time, a large amount of dust will accumulate, making it difficult for the gas to be discharged. At this time, the dust sucked into the dust collector will flow back, which will not only affect the collection of dust from the outside, but the backflowing dust will also pollute the outside air again. Utility Model Content

[0004] The purpose of this invention is to provide an industrial dust collector that prevents dust backflow. By setting a vibration component, specifically, when the metal mesh reciprocates, it drives the collision block to move together. Since the collision block and the moving plate are both equipped with protruding teeth on the side that is close to each other, the collision block and the moving plate will continuously collide and vibrate. The resulting vibration is transmitted to the filter cloth, thereby shaking off the dust attached to the filter cloth, reducing the occurrence of blockages, and allowing air to be discharged smoothly. This significantly reduces air backflow and dust overflow, solving the problem that after long-term use, the filter cloth will accumulate a large amount of dust, making it difficult for gas to be discharged, and causing the dust sucked into the dust collector to backflow.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an industrial dust collector for preventing dust backflow, comprising a dust collector housing, an air inlet fixedly connected to the top left side of the dust collector housing, an exhaust pipe fixedly connected to the top center of the dust collector housing, and a baffle fixedly connected to the top right side of the dust collector housing, and further comprising:

[0007] A filtration mechanism is disposed inside the exhaust duct. The filtration mechanism includes a metal mesh slidably connected to the center of the dust collector housing. A filter cloth is disposed inside the metal mesh. An extension rod is fixedly connected to the right side of the metal mesh. An inner ring is fixedly connected to the bottom of the inner wall of the metal mesh. Impact blocks are fixedly connected to both the front and back sides of the metal mesh. A vibration assembly is disposed outside the impact blocks. The vibration assembly includes a movable plate disposed outside the impact blocks.

[0008] A lifting mechanism is installed inside the baffle and is used to drive the metal mesh to reciprocate up and down.

[0009] The dust collector housing is equipped with a discharge valve at the bottom, and the exhaust pipe is connected to a blower. The blower is used to draw external dust into the dust collector housing, and the dust particles fall into the ash hopper at the bottom of the dust collector housing.

[0010] Furthermore, an installation ring is fixedly connected to the bottom of the filter cloth, and the installation ring is fixedly connected to the inner ring by bolts. A fixing ring is provided on the outside of the metal mesh, and the top of the fixing ring is fixedly connected to the top of the inner wall of the dust collector box. A rubber sealing ring is sleeved on the inner side of the fixing ring. When the metal mesh moves, the outer surface will slide on the rubber sealing ring, which can maintain the sealing effect without affecting the movement of the metal mesh.

[0011] The inner ring of the rubber sealing ring contacts the outer surface of the metal mesh, and the rubber sealing ring is used to seal the gap between the metal mesh and the dust collector housing.

[0012] Furthermore, both the collision block and the moving plate have protruding teeth on their adjacent sides, and the adjacent sides of the collision block and the moving plate are in contact. A gap is left between the top of the moving plate and the top of the inner wall of the dust collector box.

[0013] Furthermore, a support block is provided on the side of the movable plate away from the collision block. The top of the support block is fixedly connected to the top of the inner wall of the dust collector box. A square rod is slidably connected inside the support block. The side of the square rod facing the movable plate is fixedly connected to the surface of the movable plate. A spring is sleeved on the outside of the square rod. A shell is fixedly connected to the side of the movable plate facing the support block.

[0014] Furthermore, the outer shell is slidably connected to the outside of the support block, one end of the spring is fixedly connected to the surface of the movable plate, and the other end of the spring is fixedly connected to the surface of the support block;

[0015] The square rod is square in shape and is used to limit the movement of the moving plate.

[0016] Furthermore, the lifting mechanism includes a fixed base fixedly connected to the top of the dust collector housing. A motor is fixedly connected to the right side of the fixed base. A turntable is fixedly connected to the output end of the motor via a flange. A push shaft is fixedly connected to the left side of the turntable. A lifting frame is slidably connected to the outside of the push shaft. A lifting rod is fixedly connected to the bottom of the lifting frame. The bottom of the lifting rod passes through the dust collector housing and extends to the top of the extension rod for fixed connection. When the motor is started, the turntable rotates, and the push shaft rotates along with it. Since the push shaft slides inside the lifting frame, it drives the lifting frame to move up and down reciprocally, and drives the lifting rod to move together. This, in turn, drives the metal mesh to move together via the extension rod.

[0017] The lifting frame is elongated, and the lifting rod is slidably connected to the dust collector housing.

[0018] Furthermore, a dust cover is fixedly connected to the outer surface of the lifting rod, and the dust cover is set on the top of the dust collector box. The dust cover is used to seal the gap between the lifting rod and the dust collector box.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model incorporates a vibration component. Specifically, when the metal mesh reciprocates, it drives the collision block to move together. Since the collision block and the moving plate are both equipped with protruding teeth on their respective sides, the collision block and the moving plate will continuously collide and vibrate. The resulting vibration is transmitted to the filter cloth, thereby shaking off the dust attached to the filter cloth, reducing clogging, allowing air to be discharged smoothly, significantly reducing air backflow, and reducing dust overflow.

[0021] 2. By setting a square rod, specifically when the collision block collides with the moving plate, the moving plate will drive the square rod to slide on the support block, while squeezing the spring and quickly resetting it through the spring force. This method enables the collision block to move smoothly up and down and maintain a continuous collision effect.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the exhaust pipe of this utility model;

[0026] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0027] Figure 4 This is a schematic diagram of the overall structure of the lifting mechanism of this utility model;

[0028] Figure 5This is a schematic cross-sectional view of the left side of the dust collector housing of this utility model;

[0029] Figure 6 This utility model Figure 5 A magnified structural diagram of B in the diagram.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Dust collector housing; 11. Discharge valve; 12. Air inlet; 13. Exhaust pipe; 14. Baffle; 2. Filtering mechanism; 21. Metal mesh; 211. Extension rod; 212. Inner ring; 213. Collision block; 22. Filter cloth; 221. Mounting ring; 23. Fixing ring; 231. Rubber sealing ring; 24. Vibration assembly; 241. Moving plate; 242. Outer shell; 243. Square rod; 244. Support block; 245. Spring; 3. Lifting mechanism; 31. Fixed base; 32. Motor; 33. Turntable; 34. Push shaft; 35. Lifting frame; 351. Lifting rod; 352. Dust cover. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0033] Please see Figures 1-6 As shown, this utility model is an industrial dust collector for preventing dust backflow, including a dust collector housing 1, an air inlet 12 fixedly connected to the top left side of the dust collector housing 1, an exhaust pipe 13 fixedly connected to the top center of the dust collector housing 1, and a baffle 14 fixedly connected to the top right side of the dust collector housing 1, and also includes:

[0034] The filter mechanism 2 is located inside the exhaust duct 13. The filter mechanism 2 includes a metal mesh 21 slidably connected to the center of the dust collector housing 1. A filter cloth 22 is installed inside the metal mesh 21. An extension rod 211 is fixedly connected to the right side of the metal mesh 21. An inner ring 212 is fixedly connected to the bottom of the inner wall of the metal mesh 21. Impact blocks 213 are fixedly connected to both the front and back of the metal mesh 21. A vibration assembly 24 is installed outside the impact blocks 213. The vibration assembly 24 includes a moving plate 241 located outside the impact blocks 213. When the metal mesh 21 reciprocates, it drives the impact blocks 213 to move together. Since the sides of the impact blocks 213 and the moving plate 241 that are close to each other are both toothed, the impact blocks 213 and the moving plate 241 will continuously collide and vibrate. The resulting vibration is transmitted to the filter cloth 22, thereby vibrating and dislodging the dust attached to the filter cloth 22, reducing clogging, allowing air to be discharged smoothly, significantly reducing air backflow, and reducing dust overflow.

[0035] Lifting mechanism 3 is installed inside the baffle 14. Lifting mechanism 3 is used to drive the metal mesh 21 to move up and down reciprocally. A discharge valve 11 is installed at the bottom of the dust collector box 1. An external blower is connected to the exhaust pipe 13. The blower is used to draw external dust into the dust collector box 1, and the dust particles fall into the ash hopper at the bottom of the dust collector box 1.

[0036] A mounting ring 221 is fixedly connected to the bottom of the filter cloth 22. The mounting ring 221 is fixedly connected to the inner ring 212 by bolts. A fixing ring 23 is provided on the outside of the metal mesh 21. The top of the fixing ring 23 is fixedly connected to the top of the inner wall of the dust collector box 1. A rubber sealing ring 231 is sleeved on the inner side of the fixing ring 23. The inner ring of the rubber sealing ring 231 contacts the outer surface of the metal mesh 21. The rubber sealing ring 231 is used to seal the gap between the metal mesh 21 and the dust collector box 1.

[0037] Both the collision block 213 and the moving plate 241 have protruding teeth on their adjacent sides. The collision block 213 and the moving plate 241 are in contact on their adjacent sides. There is a gap between the top of the moving plate 241 and the top of the inner wall of the dust collector box 1. When the collision block 213 and the moving plate 241 collide, the moving plate 241 will drive the square rod 243 to slide on the support block 244, while squeezing the spring 245. The spring 245 will then quickly reset the collision block 213. This method allows the collision block 213 to move smoothly up and down and maintain a continuous collision effect.

[0038] A support block 244 is provided on the side of the movable plate 241 away from the collision block 213. The top of the support block 244 is fixedly connected to the top of the inner wall of the dust collector box 1. A square rod 243 is slidably connected inside the support block 244. The side of the square rod 243 facing the movable plate 241 is fixedly connected to the surface of the movable plate 241. A spring 245 is sleeved on the outside of the square rod 243. A shell 242 is fixedly connected to the side of the movable plate 241 facing the support block 244.

[0039] The outer casing 242 is slidably connected to the outside of the support block 244. One end of the spring 245 is fixedly connected to the surface of the moving plate 241, and the other end of the spring 245 is fixedly connected to the surface of the support block 244. The square rod 243 is square and is used to limit the movement of the moving plate 241.

[0040] The lifting mechanism 3 includes a fixed base 31 fixedly connected to the top of the dust collector housing 1. A motor 32 is fixedly connected to the right side of the fixed base 31. A turntable 33 is fixedly connected to the output end of the motor 32 through a flange. A push shaft 34 is fixedly connected to the left side of the turntable 33. A lifting frame 35 is slidably connected to the outside of the push shaft 34. A lifting rod 351 is fixedly connected to the bottom of the lifting frame 35. The bottom of the lifting rod 351 passes through the dust collector housing 1 and extends to the top of the extension rod 211 for fixed connection. The lifting frame 35 is long and narrow, and the lifting rod 351 is slidably connected to the dust collector housing 1.

[0041] A dust cover 352 is fixedly connected to the outer surface of the lifting rod 351. The dust cover 352 is set on the top of the dust collector box 1 and is used to seal the gap between the lifting rod 351 and the dust collector box 1.

[0042] One specific application of this embodiment is:

[0043] Connect the exhaust pipe 13 to the blower. Start the blower to draw dust into the dust collector housing 1 through the air inlet 12. The dust drawn into the dust collector housing 1 will rotate inside. The dust particles in the airflow will contact the inner wall under the action of centrifugal force and fall into the dust hopper at the bottom of the dust collector housing 1 under the action of airflow and their own gravity, causing a large amount of particles to accumulate at the bottom of the dust collector housing 1. The discharge valve 11 is used to discharge the dust particles, and the exhaust pipe 13 is used to discharge clean air. The air in the dust collector housing 1 will first... The filter cloth 22 filters the material, which is then discharged from the exhaust pipe 13 through the metal mesh 21. During the filtration process, the motor 32 drives the turntable 33 to rotate, causing the push shaft 34 to rotate as well. Since the push shaft 34 slides inside the lifting frame 35, it drives the lifting frame 35 to move up and down, which in turn drives the lifting rod 351 to move. This, in turn, drives the metal mesh 21 to move through the extension rod 211. The dust cover 352 is used to seal the connection between the lifting rod 351 and the dust collector housing 1. When the metal mesh 21 moves, the outer surface of the dust cover 352 is exposed to the dust. The surface will slide on the rubber sealing ring 231, maintaining the sealing effect without affecting the movement of the metal mesh 21. When the metal mesh 21 reciprocates, it will drive the collision block 213 to move together. Since the collision block 213 and the moving plate 241 are both provided with protruding teeth on the side that are close to each other, the collision block 213 and the moving plate 241 will continuously collide and vibrate. The moving plate 241 will drive the square rod 243 to slide on the support block 244, while compressing the spring 245 and rebounding through the spring 245. The force quickly resets, allowing the collision block 213 to reciprocate. The outer shell 242 moves with the moving plate 241 outside the support block 244, and the resulting vibration is transmitted to the filter cloth 22, thereby shaking off the dust attached to the filter cloth 22, reducing the occurrence of blockage, allowing air to be discharged smoothly, greatly reducing air backflow, and reducing dust overflow. The filter cloth 22 is fixed to the inner ring 212 by the mounting screws on the mounting ring 221, so the filter cloth 22 can be easily disassembled during subsequent replacement or maintenance.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An industrial dust collector for preventing dust backflow, comprising a dust collector housing (1), wherein an air inlet (12) is fixedly connected to the top left side of the dust collector housing (1), an exhaust pipe (13) is fixedly connected to the top center of the dust collector housing (1), and a baffle (14) is fixedly connected to the top right side of the dust collector housing (1), characterized in that, Also includes: A filtration mechanism (2) is disposed inside an exhaust duct (13). The filtration mechanism (2) includes a metal mesh (21) slidably connected to the center of the dust collector housing (1). A filter cloth (22) is disposed inside the metal mesh (21). An extension rod (211) is fixedly connected to the right side of the metal mesh (21). An inner ring (212) is fixedly connected to the bottom of the inner wall of the metal mesh (21). Collision blocks (213) are fixedly connected to both the front and back sides of the metal mesh (21). A vibration assembly (24) is disposed outside the collision blocks (213). The vibration assembly (24) includes a movable plate (241) disposed outside the collision blocks (213). Lifting mechanism (3), the lifting mechanism (3) is set inside the baffle (14), the lifting mechanism (3) is used to drive the metal mesh (21) to move up and down reciprocally; The dust collector housing (1) is equipped with a discharge valve (11) at the bottom, and the exhaust pipe (13) is connected to a blower. The blower is used to draw external dust into the dust collector housing (1), and the dust particles fall into the ash hopper at the bottom of the dust collector housing (1).

2. The industrial dust collector for preventing dust backflow according to claim 1, characterized in that, The bottom of the filter cloth (22) is fixedly connected to an installation ring (221), which is fixedly connected to the inner ring (212) by bolts. A fixing ring (23) is provided on the outside of the metal mesh (21). The top of the fixing ring (23) is fixedly connected to the top of the inner wall of the dust collector box (1). A rubber sealing ring (231) is sleeved on the inner side of the fixing ring (23). The inner ring of the rubber sealing ring (231) is in contact with the outer surface of the metal mesh (21), and the rubber sealing ring (231) is used to seal the gap between the metal mesh (21) and the dust collector housing (1).

3. An industrial dust collector for preventing dust backflow according to claim 2, characterized in that, The collision block (213) and the moving plate (241) are both provided with protruding teeth on the side that is close to each other. The collision block (213) and the moving plate (241) are in contact on the side that is close to each other. There is a gap between the top of the moving plate (241) and the top of the inner wall of the dust collector box (1).

4. An industrial dust collector for preventing dust backflow according to claim 3, characterized in that, A support block (244) is provided on the side of the movable plate (241) away from the collision block (213). The top of the support block (244) is fixedly connected to the top of the inner wall of the dust collector box (1). A square rod (243) is slidably connected inside the support block (244). The side of the square rod (243) facing the movable plate (241) is fixedly connected to the surface of the movable plate (241). A spring (245) is sleeved on the outside of the square rod (243). A shell (242) is fixedly connected to the side of the movable plate (241) facing the support block (244).

5. An industrial dust collector for preventing dust backflow according to claim 4, characterized in that, The outer shell (242) is slidably connected to the outside of the support block (244), one end of the spring (245) is fixedly connected to the surface of the moving plate (241), and the other end of the spring (245) is fixedly connected to the surface of the support block (244); The square rod (243) is square in shape and is used to limit the movement of the movable plate (241).

6. An industrial dust collector for preventing dust backflow according to claim 2, characterized in that, The lifting mechanism (3) includes a fixed base (31) fixedly connected to the top of the dust collector box (1), a motor (32) fixedly connected to the right side of the fixed base (31), a turntable (33) fixedly connected to the output end of the motor (32) through a flange, a push shaft (34) fixedly connected to the left side of the turntable (33), a lifting frame (35) slidably connected to the outside of the push shaft (34), a lifting rod (351) fixedly connected to the bottom of the lifting frame (35), and the bottom of the lifting rod (351) penetrates the dust collector box (1) and extends to the top of the extension rod (211) for fixed connection; The lifting frame (35) is elongated, and the lifting rod (351) is slidably connected to the dust collector housing (1).

7. An industrial dust collector for preventing dust backflow according to claim 6, characterized in that, A dust cover (352) is fixedly connected to the outer surface of the lifting rod (351). The dust cover (352) is set on the top of the dust collector box (1) and is used to seal the gap between the lifting rod (351) and the dust collector box (1).