Dredging device of bag-type dust collector

By designing a dust collector unblocking device, which utilizes components such as threaded rods, threaded sleeves, cleaning scrapers, and rubber tapping balls, the problem of filter bag clogging is solved, thereby improving dust removal efficiency and equipment operational stability.

CN224113544UActive Publication Date: 2026-04-14QIAN JIANG SHI JIANG HUAN SHI YE YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

During the use of baghouse dust collectors, the stickiness of dust can cause filter bags to become clogged, affecting dust removal efficiency, increasing equipment operating resistance, and even potentially damaging the equipment.

Method used

Design a cleaning device for a bag filter dust collector, comprising cleaning components including a threaded rod, a threaded sleeve, a cleaning scraper, a worm gear transmission system, and a rubber striking ball, to mechanically clean dust from the inner and outer walls of the filter bag and reduce adhesion.

Benefits of technology

It effectively cleans dust from the inner and outer walls of the filter bags, reduces clogging, improves dust removal efficiency, reduces equipment operating resistance, and extends equipment service life.

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Abstract

The utility model discloses a dredging device of a bag-type dust remover, which comprises a dust remover body, filter bags for removing dust are uniformly arranged in the dust remover body, and a dredging component for dredging is arranged right below the filter bags. The dredging assembly comprises a mounting plate, a threaded rod and a threaded sleeve, the threaded rod is rotatably connected to the top end of the mounting plate and located on the inner side of the filter bag, the threaded sleeve is rotatably connected to the periphery of the threaded rod, and cleaning scraping plates for scraping dust attached to the inner wall of the filter bag are uniformly, symmetrically and fixedly mounted on the periphery of the threaded sleeve; the threaded rod penetrates through the mounting plate and is internally and fixedly provided with a worm wheel; the worm gear is driven to rotate through rotation of the worm, then the threaded rod is driven to rotate, the threaded sleeve on the periphery is driven to ascend and descend along with rotation of the threaded rod, at the moment, the cleaning scraping plate is driven by the threaded sleeve to clean dust attached to the inner wall of the filter bag, and dust attached to the inner wall of the filter bag is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of bag filter equipment, specifically a dredging device for a bag filter. Background Technology

[0002] A baghouse dust collector is a dry dust filtration device suitable for collecting fine, dry, non-fibrous dust. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. When the dust-laden gas enters the baghouse dust collector, larger, heavier dust particles settle due to gravity and fall into the ash hopper. Gas containing finer dust particles is purified as it passes through the filter media, as the dust is trapped.

[0003] However, during the use of baghouse dust collectors, some dust is sticky, which can cause the filter bags inside the dust collector to become clogged. This not only affects the dust removal efficiency of the dust collector, but also increases the operating resistance of the equipment, and may even lead to equipment damage. Utility Model Content

[0004] The purpose of this utility model is to provide a clogging device for baghouse dust collectors, which addresses the problem that some dust particles are sticky and can cause blockages in the filter bags inside the dust collector. This not only affects the dust removal efficiency of the dust collector but also increases the operating resistance of the equipment and may even lead to equipment damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dredging device for a bag filter dust collector, comprising a dust collector body, wherein filter bags for dust removal are uniformly arranged inside the dust collector body, and a dredging component is arranged directly below the filter bags. The dredging component includes a mounting plate, a threaded rod rotatably connected to the top of the mounting plate and located inside the filter bags, and a threaded sleeve rotatably connected to the outer periphery of the threaded rod. Cleaning scrapers for scraping off dust adhering to the inner wall of the filter bags are uniformly and symmetrically fixedly installed on the outer periphery of the threaded sleeve. A guide rod is fixedly installed at the top of the mounting plate to limit the movement of the cleaning scraper. The threaded rod passes through the mounting plate and is fixedly installed inside the worm gear. A rotating rod is rotatably connected inside the mounting plate, and a worm gear that drives the worm gear to rotate is fixedly installed on the outer periphery of the rotating rod. A driven wheel is fixedly installed on the outside of the rotating rod, passing through the mounting plate and the dust collector body. A driving wheel is provided on the outer periphery of the dust collector body. A connecting belt is provided between the driving wheel and the driven wheel. A rotating motor that drives the driving wheel to rotate is fixedly installed on the outer periphery of the dust collector body.

[0006] As a further improvement of this utility model, the threaded rod is rotatably connected to the middle of the mounting plate with a sealing ring to reduce dust from entering the interior of the mounting plate.

[0007] As a further embodiment of this utility model: a rotating shaft is rotatably connected to the top of the mounting plate and located in the middle of the two sets of filter bags. Mounting blocks are symmetrically and evenly arranged on the outer periphery of the rotating shaft. A soft rope is fixedly installed at one end of the mounting block, and a rubber beating ball for striking the outer wall of the filter bag is fixedly installed at the other end of the soft rope. A driven gear is fixedly installed inside the mounting plate at the bottom end of the rotating shaft. A driving gear that meshes with the driven gear is fixedly installed on the outer periphery of the threaded rod.

[0008] As a further improvement of this utility model: a threaded fixing rod that is threadedly connected and fixed to the rotating shaft is fixedly installed at one end of the mounting block.

[0009] As a further embodiment of this utility model: a dust hopper is fixedly installed at the bottom of the dust collector body, a venturi tube is fixedly installed at one end of the dust collector body, and an air outlet pipe is fixedly installed at one end of the dust collector body.

[0010] As a further embodiment of this utility model: a support rod is fixedly installed at the bottom of the dust collector body, and the support rod is symmetrically and evenly fixedly installed around the bottom of the dust collector body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses the rotation of the worm gear to drive the worm wheel to rotate, which in turn drives the threaded rod to rotate. As the threaded rod rotates, it drives the outer threaded sleeve to rise and fall. At this time, the threaded sleeve drives the cleaning scraper to clean the dust adhering to the inner wall of the filter bag, reducing the adhesion of dust to the inner wall of the filter bag.

[0013] 2. The rotation of the drive gear drives the driven gear to rotate together. As the driven gear rotates, it drives the rotating shaft at the top of the mounting plate to rotate. As the rotating shaft rotates, it drives the outer mounting block to rotate together. This causes the rubber striking ball at one end of the soft rope to strike the outer wall of the filter bag, knocking off the dust on the surface of the filter bag and reducing dust adhesion. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the dust collector body of this utility model;

[0016] Figure 3 This is a utility model Figure 2 A magnified view of the structure at point B in the middle;

[0017] Figure 4 This is a partial cross-sectional structural diagram of the mounting plate of this utility model;

[0018] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the local structure at point C;

[0019] Figure 6 This is a utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Dust collector body; 2. Filter bag; 3. Unblocking assembly; 31. Mounting plate; 32. Threaded rod; 33. Threaded sleeve; 34. Cleaning scraper; 35. Worm gear; 36. Rotating rod; 37. Driven wheel; 38. Driving wheel; 39. Rotating motor; 310. Connecting belt; 311. Worm; 312. Driving gear; 313. Sealing ring; 314. Rotating shaft; 315. Driven gear; 316. Mounting block; 317. Threaded fixing rod; 318. Soft rope; 319. Rubber striking ball; 320. Guide rod; 4. Dust hopper; 5. Air outlet pipe; 6. Venturi tube; 7. Support rod. Detailed Implementation

[0021] 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 protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0023] Reference Figures 1 to 6 In this embodiment of the utility model, a dredging device for a bag filter dust collector includes a dust collector body 1. Filter bags 2 for dust removal are evenly arranged inside the dust collector body 1. A dredging component 3 for dredging is arranged directly below the filter bags 2. The dredging component 3 includes a mounting plate 31, a threaded rod 32 rotatably connected to the top of the mounting plate 31 and located inside the filter bags 2, and a threaded sleeve 33 rotatably connected to the outer periphery of the threaded rod 32. Cleaning scrapers 34 for scraping away dust adhering to the inner wall of the filter bags 2 are evenly and symmetrically fixedly installed on the outer periphery of the threaded sleeve 33. A through-cleaning scraper is fixedly installed at the top of the mounting plate 31. The guide rod 320 limits the plate 34. The threaded rod 32 passes through the mounting plate 31 and is fixedly installed with the worm gear 35 inside. The mounting plate 31 is rotatably connected to the rotating rod 36, and the worm 311 that drives the worm gear 35 to rotate is fixedly installed on the outer periphery of the rotating rod 36. The rotating rod 36 passes through the mounting plate 31 and the dust collector body 1 and is fixedly installed with the driven wheel 37 on the outside. The dust collector body 1 is provided with the driving wheel 38. The driving wheel 38 and the driven wheel 37 are connected by a belt 310. The dust collector body 1 is fixedly installed with a rotating motor 39 that drives the driving wheel 38 to rotate.

[0024] Through this method: the bottom end of the threaded rod 32 is rotatably connected to the mounting plate 31. The threaded rod 32 is located on the outer periphery of the mounting plate 31 and is threadedly connected to the threaded sleeve 33. The rotation of the worm gear 311 drives the worm wheel 35 to rotate, which in turn drives the threaded rod 32 to rotate. As the threaded rod 32 rotates, it drives the threaded sleeve 33 on the outer periphery to rise and fall. At this time, the threaded sleeve 33 drives the cleaning scraper 34 to clean the dust adhering to the inner wall of the filter bag 2, reducing the adhesion of dust to the inner wall of the filter bag 2. At the same time, the top of the cleaning scraper 34 is evenly provided with through holes for dust to pass through and be adsorbed by the filter bag 2.

[0025] Reference Figures 1 to 6 The threaded rod 32 is rotatably connected to the middle of the mounting plate 31 with a sealing ring 313 to reduce dust from entering the interior of the mounting plate 31;

[0026] By implementing this method, the sealing ring 313 can increase the sealing between the threaded rod 32 and the mounting plate 31, reduce dust falling into the mounting plate 31 and causing damage to the internal mechanical components, and increase the service life of the mechanical components.

[0027] Reference Figures 1 to 6A rotating shaft 314 is rotatably connected to the top of the mounting plate 31 and located in the middle of the two sets of filter bags 2. Mounting blocks 316 are symmetrically and evenly arranged on the outer periphery of the rotating shaft 314. A soft rope 318 is fixedly installed at one end of the mounting block 316, and a rubber beating ball 319 for beating the outer wall of the filter bag 2 is fixedly installed at the other end of the soft rope 318. A driven gear 315 is fixedly installed inside the mounting plate 31 at the bottom end of the rotating shaft 314. A driving gear 312 that meshes with the driven gear 315 is fixedly installed on the outer periphery of the threaded rod 32. A threaded fixing rod 317 that is threadedly connected to the rotating shaft 314 is fixedly installed at one end of the mounting block 316.

[0028] Through the implementation of this method: the rotation of the driving gear 312 drives the driven gear 315 to rotate together. As the driven gear 315 rotates, it drives the rotating shaft 314 at the top of the mounting plate 31 to rotate. As the rotating shaft 314 rotates, it drives the outer mounting block 316 to rotate together, which in turn drives the rubber striking ball 319 at one end of the soft rope 318 to strike the outer wall of the filter bag 2, knocking off the dust on the surface of the filter bag 2 and reducing the adhesion of dust.

[0029] Reference Figures 1 to 6 A dust hopper 4 is fixedly installed at the bottom of the dust collector body 1. A venturi tube 6 is fixedly installed at one end of the dust collector body 1. An air outlet pipe 5 is fixedly installed at one end of the dust collector body 1. A support rod 7 is fixedly installed at the bottom of the dust collector body 1, and the support rod 7 is symmetrically and evenly installed around the bottom of the dust collector body 1.

[0030] The working principle of this utility model is as follows: When the filter bag 2 inside the dust collector body 1 becomes clogged, the operator starts the external rotating motor 39 to drive the drive wheel 38 to rotate. As the drive wheel 38 rotates, it drives the driven wheel 37 to rotate via the connecting belt 310. As the driven wheel 37 rotates, it drives the rotating rod 36 inside the mounting plate 31 to rotate, which in turn drives the worm gear 311 inside the mounting plate 31 to rotate. As the worm gear 311 rotates, it drives the worm wheel 35 to rotate, which in turn drives the threaded rod 32 to rotate. As the threaded rod 32 rotates, it drives the outer threaded sleeve 33 to rise and fall. At this time, the threaded sleeve 33... The cleaning scraper 34 will clean the dust adhering to the inner wall of the filter bag 2, reducing the adhesion of dust to the inner wall of the filter bag 2. When the threaded rod 32 rotates, it will drive the outer peripheral drive gear 312 to rotate together. As the drive gear 312 rotates, it will drive the driven gear 315 to rotate together. As the driven gear 315 rotates, it will drive the rotating shaft 314 at the top of the mounting plate 31 to rotate. As the rotating shaft 314 rotates, it will drive the outer peripheral mounting block 316 to rotate together, which will drive the rubber striking ball 319 at one end of the soft rope 318 to strike the outer wall of the filter bag 2, knocking off the dust on the surface of the filter bag 2 and reducing the adhesion of dust.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dredging device for a bag filter dust collector, characterized in that, The dust collector includes a dust collector body (1), in which filter bags (2) for dust removal are evenly arranged. A dredging assembly (3) for unblocking is arranged directly below the filter bags (2). The dredging assembly (3) includes a mounting plate (31), a threaded rod (32) rotatably connected to the top of the mounting plate (31) and located inside the filter bag (2), and a threaded sleeve (33) rotatably connected to the outer periphery of the threaded rod (32). A cleaning scraper (34) for scraping off dust adhering to the inner wall of the filter bag (2) is evenly and symmetrically fixedly installed on the outer periphery of the threaded sleeve (33). A guide rod (320) for limiting the movement of the cleaning scraper (34) is fixedly installed at the top of the mounting plate (31). The threaded rod (32) passes through the mounting plate (31) and is fixedly installed with a worm gear (35) inside. The mounting plate (31) is rotatably connected to a rotating rod (36), and a worm (311) that drives the worm gear (35) to rotate is fixedly installed on the outer periphery of the rotating rod (36). The rotating rod (36) passes through the mounting plate (31) and the dust collector body (1) and is fixedly installed with a driven wheel (37) on the outside. The dust collector body (1) is provided with a driving wheel (38) on the outer periphery. A connecting belt (310) is provided between the driving wheel (38) and the driven wheel (37). A rotating motor (39) that drives the driving wheel (38) to rotate is fixedly installed on the outer periphery of the dust collector body (1).

2. The unblocking device for a bag filter dust collector according to claim 1, characterized in that, The threaded rod (32) is rotatably connected to the middle of the mounting plate (31) by a sealing ring (313) to reduce dust from entering the interior of the mounting plate (31).

3. The unblocking device for a bag filter dust collector according to claim 1, characterized in that, The mounting plate (31) is rotatably connected to the top of the mounting plate (31) and located in the middle of the two sets of filter bags (2). Mounting blocks (316) are symmetrically and evenly arranged on the outer periphery of the mounting plate (314). A soft rope (318) is fixedly installed at one end of the mounting block (316), and a rubber beating ball (319) for beating the outer wall of the filter bag (2) is fixedly installed at the other end of the soft rope (318). A driven gear (315) is fixedly installed inside the mounting plate (31) at the bottom end of the mounting plate (31). A drive gear (312) that meshes with the driven gear (315) is fixedly installed on the outer periphery of the threaded rod (32).

4. The unblocking device for a bag filter dust collector according to claim 3, characterized in that, One end of the mounting block (316) is fixedly mounted with a threaded fixing rod (317) that is threadedly connected and fixed to the rotating shaft (314).

5. The unblocking device for a bag filter dust collector according to claim 1, characterized in that, A dust hopper (4) is fixedly installed at the bottom of the dust collector body (1), a venturi tube (6) is fixedly installed at one end of the dust collector body (1), and an air outlet pipe (5) is fixedly installed at one end of the dust collector body (1).

6. The unblocking device for a bag filter dust collector according to claim 1, characterized in that, The bottom end of the dust collector body (1) is fixedly installed with a support rod (7), and the support rod (7) is symmetrically and evenly fixedly installed around the bottom end of the dust collector body (1).