Pulse dust cleaning auxiliary device of bag-type dust collector and pulse-type bag-type dust collector

Abstract

The invention provides a bag-type dust collector pulsed dust cleaning auxiliary device and a pulsed bag-type dust collector, and belongs to the technical field of environmental protection equipment.The bag-type dust collector pulsed dust cleaning auxiliary device comprises a sleeve assembly, a first linkage mechanism and a driving assembly, and the sleeve assembly is formed by splicing a plurality of fan-shaped sub-cylinders and is suitable for being arranged on the outer side of a filter bag in a surrounding mode; a rotating shaft is arranged at the top of each fan-shaped sub-cylinder and is in running fit with the mounting plate of the filter bag; the power output end of the first linkage mechanism is connected with a rotating shaft of a fan-shaped sub-cylinder in the sleeve assembly; the power output end of the driving assembly is connected with the power input end of the first linkage mechanism; the pulse type bag-type dust collector comprises the auxiliary device. According to the bag-type dust collector pulsed dust cleaning auxiliary device and the pulsed bag-type dust collector, the dust cleaning effect at the bottom of the filter bag can be effectively improved, and secondary dust raising is effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection equipment, and in particular relates to a pulse dust cleaning auxiliary device for a bag dust collector and a pulse bag dust collector. Background Art

[0002] Bag filter is a kind of high-efficiency air purification equipment widely used in industrial production process. It captures solid particles in the air by filtering bags, so as to purify the gas. However, in practical application, bag filter faces a common problem: because the bottom of the bag is close to the gas inlet, the wind flow in this area is relatively strong, making it easier for solid dust particles to accumulate and harden quickly, increasing the overall air resistance, causing an increase in pressure drop, and affecting the dust removal and filtration efficiency of the bag filter.

[0003] At present, pulse spraying is usually used to clean the dust accumulated on the bag. Specifically, a nozzle is set above the opening of the bag, and the high-pressure airflow generated by the instantaneous release of compressed air is impacted on the inner plate of the bag to remove the dust attached thereto.

[0004] However, since the nozzle is set at the top of the bag, far away from the bottom of the bag, and the bag is breathable, the pressure difference drops rapidly during the downward transmission of the high-pressure airflow, resulting in the airflow reaching the bottom with lower pressure and insufficient power, making it difficult to effectively remove the dust accumulated at the bottom, and the dust escapes to the surroundings, causing secondary dust. Summary of the invention

[0005] The present invention provides a pulse dust cleaning auxiliary device for a bag dust collector and a pulse bag dust collector, aiming to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is: In a first aspect, an embodiment of the present invention provides a pulse dust cleaning auxiliary device for a bag filter, comprising: The sleeve assembly is formed by splicing a plurality of sector-shaped sub-cylinders and is suitable for surrounding the outside of the filter bag; a rotating shaft is provided on the top of each sector-shaped sub-cylinder, and the rotating shaft is rotatably matched with the mounting plate of the filter bag; A first linkage mechanism, the power output end of which is connected to the rotating shaft of the sector-shaped sub-drum in the sleeve assembly; and A driving assembly, a power output end of which is connected to a power input end of the first linkage mechanism; Among them, when the filter bag needs to be dust-removed, the driving component drives the sector-shaped sub-cylinder to rotate a preset angle through the first linkage mechanism, so that an air intake gap is generated between two adjacent sector-shaped sub-cylinders, so that dust-containing flue gas can pass through; before pulse cleaning of the filter bag, the driving component drives the sector-shaped sub-cylinder to rotate in the opposite direction by a preset angle and reset through the first linkage mechanism to form a closed sleeve.

[0007] In combination with the first aspect, in a possible implementation of the pulse cleaning auxiliary device for bag dust collector provided by the present invention, the side wall of the fan-shaped sub-barrel is a double-layer structure with an opening at the bottom, and the side wall of the fan-shaped sub-barrel includes an outer plate and an inner plate, and the inner plate and the outer plate are spaced apart to form an ash channel in the middle, and a plurality of ash inlets extending circumferentially are spaced apart along the axial direction on the inner plate.

[0008] In combination with the first aspect, in a possible implementation of the pulse cleaning auxiliary device for bag filter provided by the present invention, a plurality of support plates are provided in the ash duct, and the support plates are connected to the inner plate and the outer plate.

[0009] In combination with the first aspect, in a possible implementation of the pulse dust cleaning auxiliary device for a bag filter provided by the present invention, the sector-shaped sub-drum further includes a plurality of guide mechanisms, the guide mechanisms corresponding one to one with the ash inlet, and used to guide the dust between the inner plate and the filter bag to the ash inlet and into the ash channel; The guiding mechanism comprises: An upper guide plate is arranged obliquely, with a lower end connected to the upper side of the ash inlet and an upper end arranged to be separated from the inner plate; A lower guide plate is arranged obliquely, with an upper end connected to the lower side of the ash inlet and a lower end arranged to be separated from the inner plate; Among the two adjacent guide mechanisms, the lower end of the lower guide plate of the upper guide mechanism is connected to the upper end of the upper guide plate of the lower guide mechanism.

[0010] In combination with the first aspect, in a possible implementation of the pulse cleaning auxiliary device for bag collector provided by the present invention, the guiding mechanism also includes a guide cover, which is arranged in the ash channel, with the upper end connected to the inner plate on the upper side of the ash inlet, and the lower end is arranged to be separated from the inner plate.

[0011] In combination with the first aspect, in a possible implementation of the pulse cleaning auxiliary device for bag filter provided by the present invention, the linkage mechanism includes: A plurality of first gears corresponding to the sector-shaped cylinders one by one, and the first gears are connected to the rotating shaft; A gear ring is sleeved on the outside of all the gears, and teeth are arranged on both the inner and outer sides of the gear ring. The inner side of the gear ring is meshed with the gears.

[0012] In combination with the first aspect, in a possible implementation of the pulse cleaning auxiliary device for bag dust collector provided by the present invention, it includes a plurality of the sleeve assemblies, the linkage mechanism corresponds to the sleeve assemblies one by one, and the plurality of the sleeve assemblies are distributed in a plurality of rows and columns.

[0013] In combination with the first aspect, in a possible implementation of the pulse dust cleaning auxiliary device for bag filter provided by the present invention, the driving assembly includes a plurality of driving mechanisms, each of which drives a column or a row of the linkage mechanisms to move synchronously; The driving mechanism comprises: a tooth row meshing with the outer side of said ring gear in one row or column of said linkage mechanism; The first driving unit has a power output end connected to the gear row and is used to drive the gear row to reciprocate.

[0014] In a second aspect, an embodiment of the present invention further provides a pulse bag dust collector, comprising the above-mentioned bag dust collector pulse cleaning auxiliary device.

[0015] The beneficial effect of the pulse dust cleaning auxiliary device for bag dust collector provided by the present invention is as follows: compared with the prior art, the pulse dust cleaning auxiliary device for bag dust collector provided by the present invention, when the filter bag needs to perform dust removal operation, the driving component drives the fan-shaped sub-cylinder to rotate by a preset angle through the first linkage mechanism, so that an air intake gap is generated between two adjacent fan-shaped sub-cylinders, so that dust-containing flue gas can pass through to perform dust removal operation normally; before pulse cleaning of the filter bag, the driving component drives the fan-shaped sub-cylinder to rotate in the opposite direction by a preset angle and reset through the first linkage mechanism to form a closed sleeve, and then the filter bag is backblown by using the pulse mechanism. At this time, the closed sleeve will effectively limit the escape of high-pressure airflow, thereby effectively reducing the speed at which the air pressure of the high-pressure airflow decreases during the downward transmission process, ensuring that when it reaches the bottom of the filter bag, there is still sufficient pressure to remove accumulated dust; at the same time, the closed sleeve can effectively restrict the escape direction and range of dust, so that the dust can only be discharged from the bottom of the closed sleeve and enter the ash hopper, effectively reducing secondary dust.

[0016] The beneficial effects of the pulse bag dust collector provided by the present invention are as follows: compared with the prior art, the pulse bag dust collector provided by the present invention is provided with the above-mentioned bag dust collector pulse cleaning auxiliary device, thereby effectively reducing the speed at which the air pressure decreases during the downward transmission of the high-pressure airflow, ensuring that when it reaches the bottom of the filter bag, there is still sufficient pressure to remove the accumulated dust; at the same time, the closed sleeve can effectively restrict the direction and range of dust escape, so that the dust can only be discharged from the bottom of the closed sleeve and enter the ash hopper, effectively reducing secondary dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic diagram of a partial three-dimensional structure of a pulse bag dust collector provided in an embodiment of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the sleeve assembly of the pulse cleaning auxiliary device for bag dust collector provided by the embodiment of the present invention Figure 1 ; Figure 3 Schematic diagram of the three-dimensional structure of the sleeve assembly of the pulse cleaning auxiliary device for bag dust collector provided by the embodiment of the present invention Figure 2 ; Figure 4 for Figure 3 A magnified view of part A in FIG. Description of reference numerals: 10. Sleeve assembly; 11. Fan-shaped sub-tube; 111. Inner plate; 112. Outer plate; 113. Ash channel; 114, ash inlet; 115, support plate; 116, rotating shaft; 121, upper guide plate; 122, lower guide plate; 123, air deflector; 21, first gear; 22, gear ring; 31, gear row; 32, first drive unit; 41. Filter bag; 42. Mounting plate. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0022] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0024] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0025] Please also read Figures 1 to 4The pulse dust cleaning auxiliary device for bag dust collector provided by the present invention is now described. The pulse dust cleaning auxiliary device for bag dust collector comprises a sleeve assembly 10, a first linkage mechanism and a drive assembly. The sleeve assembly 10 is formed by splicing a plurality of sector-shaped sub-barrels 11 and is suitable for surrounding the outside of the filter bag 41; a rotating shaft 116 is provided on the top of each sector-shaped sub-barrel 11, and the rotating shaft 116 is rotatably matched with the mounting plate 42 of the filter bag 41; the power output end of the first linkage mechanism is connected to the rotating shaft 116 of the sector-shaped sub-barrel 11 in the sleeve assembly 10; and the power output end of the drive assembly is connected to the power input end of the first linkage mechanism.

[0026] When the filter bag 41 needs to perform dust removal, the driving assembly drives the sector-shaped sub-cylinder 11 to rotate by a preset angle through the first linkage mechanism, so that an air intake interval is generated between two adjacent sector-shaped sub-cylinders 11, such as Figure 3 , so that dust-containing flue gas can pass; before the filter bag 41 is pulse-cleaned, the drive assembly drives the sector-shaped sub-cylinder 11 to rotate in the opposite direction by a preset angle and reset through the first linkage mechanism to form a closed sleeve, such as Figure 2 .

[0027] The beneficial effect of the pulse dust cleaning auxiliary device for bag dust collector provided by the embodiment of the present invention is as follows: compared with the prior art, the pulse dust cleaning auxiliary device for bag dust collector provided by the embodiment of the present invention, when the filter bag 41 needs to perform dust removal operation, the driving component drives the fan-shaped sub-cylinder 11 to rotate a preset angle through the first linkage mechanism, so that an air intake gap is generated between two adjacent fan-shaped sub-cylinders 11, so that dust-containing flue gas can pass through to perform dust removal operation normally; before pulse dust cleaning of the filter bag 41, the driving component drives the fan-shaped sub-cylinder 11 to rotate in the opposite direction by a preset angle and reset through the first linkage mechanism to form a closed sleeve, and then the filter bag 41 is back-blown by the pulse mechanism. At this time, the closed sleeve will effectively limit the escape of the high-pressure airflow, thereby effectively reducing the speed at which the air pressure of the high-pressure airflow decreases during the downward transmission process, ensuring that when it reaches the bottom of the filter bag 41, there is still sufficient pressure to remove the accumulated dust; at the same time, the closed sleeve can effectively restrict the escape direction and range of dust, so that the dust can only be discharged from the bottom of the closed sleeve and enter the ash hopper, effectively reducing secondary dust.

[0028] like Figure 3 and Figure 4 As shown, in a specific implementation of the pulse cleaning auxiliary device for a bag filter provided in an embodiment of the present invention, the side wall of the sector-shaped sub-barrel 11 is a double-layer structure with an opening at the bottom, and the side wall of the sector-shaped sub-barrel 11 includes an outer plate 112 and an inner plate 111, and the inner plate 111 and the outer plate 112 are arranged at intervals to form an ash channel 113 in the middle, and a plurality of ash inlets 114 extending along the circumferential direction are provided on the inner plate 111 at intervals along the axial direction.

[0029] It should be noted that during backblowing, a flow channel is provided for the airflow carrying dust, which facilitates the discharge of the airflow, accelerates the discharge of dust, and reduces the interference of the upper airflow and dust on the lower backblowing effect.

[0030] like Figure 4 As shown, in a specific implementation of the pulse cleaning auxiliary device for bag dust collector provided in an embodiment of the present invention, a plurality of support plates 115 are provided in the ash duct 113, and the support plates 115 are connected to the inner plate 111 and the outer plate 112 to improve the structural strength of the sector-shaped sub-drum 11.

[0031] like Figure 3 and Figure 4 As shown, in a specific implementation of the pulse cleaning auxiliary device for a bag dust collector provided in an embodiment of the present invention, the fan-shaped sub-drum 11 also includes a plurality of guiding mechanisms, which correspond one-to-one to the ash inlet 114 and are used to guide the dust between the inner plate 111 and the filter bag 41 to the ash inlet 114 and enter the ash channel 113.

[0032] Specifically, the guiding mechanism includes an upper guide plate 121 and a lower guide plate 122. The upper guide plate 121 is tilted, and its lower end is connected to the upper side of the ash inlet 114, and the upper end is spaced apart from the inner plate 111; the lower guide plate 122 is tilted, and its upper end is connected to the lower side of the ash inlet 114, and the lower end is spaced apart from the inner plate 111; wherein, in two adjacent guiding mechanisms, the lower end of the lower guide plate 122 of the upper guiding mechanism is connected to the upper end of the upper guide plate 121 of the lower guiding mechanism.

[0033] It should be noted that the upper guide plate 121 and the lower guide plate 122 are combined to form a funnel structure, which guides the dust-laden airflow into the ash duct 113, allowing more dust-laden airflow to enter the ash duct 113, further reducing the interference of the upper airflow and dust on the lower backblowing effect, accelerating dust discharge, and further improving the cleaning effect.

[0034] like Figure 3 and Figure 4 As shown, in a specific implementation of the pulse cleaning auxiliary device for a bag filter provided in an embodiment of the present invention, the guiding mechanism also includes a guide cover 123, which is arranged in the ash channel 113, with the upper end connected to the inner plate 111 on the upper side of the ash inlet 114, and the lower end is arranged between the inner plate 111.

[0035] Specifically, the inner wall of the air guide 123 is arc-shaped to better guide the flow direction of the dust-laden airflow after it enters the ash duct 113, reduce the collision between the airflow entering the ash duct 113 from the ash inlet 114 and the airflow in the ash duct 113, reduce the kinetic energy loss of the airflow, and the air guide 123 reduces the cross-sectional area of ​​the ash duct 113, and can form a Venturi effect near the ash inlet 114, actively absorb the airflow into the ash duct 113, further reduce the interference of the upper airflow and dust on the lower backblowing effect, accelerate dust discharge; and increase the pressure difference between the inside and outside of the filter bag 41 to ensure the cleaning effect.

[0036] like Figure 1 and Figure 2 As shown, in a specific implementation of the pulse cleaning auxiliary device for a bag dust collector provided in an embodiment of the present invention, the linkage mechanism includes a plurality of first gears 21 and a gear ring 22, and the plurality of first gears 21 correspond one-to-one to the sector-shaped dividing cylinder 11, and the first gear 21 is connected to the rotating shaft 116; the gear ring 22 is sleeved on the outside of all the gears, and teeth are provided on both the inner and outer sides of the gear ring 22, and the inner side of the gear ring 22 is meshed with the gear.

[0037] It should be noted that the ring gear 22 can be replaced by a double gear, a thick gear, or other parts or mechanisms that can mesh with multiple gears at the same time and can be driven to rotate by a driving element.

[0038] like Figure 1 and Figure 2 As shown, in a specific implementation of the pulse cleaning auxiliary device for bag dust collector provided in an embodiment of the present invention, it includes a plurality of sleeve assemblies 10, the linkage mechanism corresponds to the sleeve assemblies 10 one by one, and the plurality of sleeve assemblies 10 are distributed in a plurality of rows and columns.

[0039] like Figure 1 and Figure 2 As shown, in a specific implementation of the pulse cleaning auxiliary device for bag dust collector provided in an embodiment of the present invention, the driving assembly includes a plurality of driving mechanisms, each of which drives a column or a row of linkage mechanisms to move synchronously.

[0040] The driving mechanism includes a tooth row 31 and a first driving unit 32. The tooth row 31 meshes with the outer side of the gear ring 22 in a column or a row of linkage mechanisms. The power output end of the first driving unit 32 is connected to the tooth row 31 to drive the tooth row 31 to reciprocate.

[0041] It should be noted that in order to ensure the dust removal efficiency, an online cleaning method is usually adopted, that is, a column or a row of filter bags 41 is used as a dust removal unit, and only the filter bags 41 of one dust removal unit are backblown and cleaned at a time, and the cleaning is performed alternately and staggered. At this time, the corresponding column or row of sleeve assemblies 10 can be driven to switch states by the first drive unit 32.

[0042] Specifically, the first driving unit 32 is a cylinder, a hydraulic cylinder, an electric push rod, or other devices or mechanisms that can drive the gear row 31 to reciprocate.

[0043] Based on the same inventive concept, an embodiment of the present invention further provides a pulse bag dust collector, including the above-mentioned bag dust collector pulse cleaning auxiliary device.

[0044] The beneficial effects of the pulse bag dust collector provided by the embodiment of the present invention are as follows: compared with the prior art, the pulse bag dust collector provided by the embodiment of the present invention is provided with the above-mentioned bag dust collector pulse cleaning auxiliary device, thereby effectively reducing the speed at which the high-pressure airflow decreases in the process of downward transmission, ensuring that when it reaches the bottom of the filter bag 41, there is still sufficient pressure to remove the accumulated dust; at the same time, the closed sleeve can effectively restrict the direction and range of dust escape, so that the dust can only be discharged from the bottom of the closed sleeve and enter the ash hopper, effectively reducing secondary dust.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulse cleaning auxiliary device for bag filter, characterized in that: include: The sleeve assembly is formed by splicing a plurality of sector-shaped sub-cylinders and is suitable for surrounding the outside of the filter bag; a rotating shaft is provided on the top of each sector-shaped sub-cylinder, and the rotating shaft is rotatably matched with the mounting plate of the filter bag; A first linkage mechanism, the power output end of which is connected to the rotating shaft of the sector-shaped sub-drum in the sleeve assembly; as well as A driving assembly, a power output end of which is connected to a power input end of the first linkage mechanism; Among them, when the filter bag needs to be dust-removed, the driving component drives the sector-shaped sub-cylinder to rotate a preset angle through the first linkage mechanism, so that an air intake gap is generated between two adjacent sector-shaped sub-cylinders, so that dust-containing flue gas can pass through; before pulse cleaning of the filter bag, the driving component drives the sector-shaped sub-cylinder to rotate in the opposite direction by a preset angle and reset through the first linkage mechanism to form a closed sleeve.

2. The pulse cleaning auxiliary device for bag filter according to claim 1, characterized in that: The side wall of the sector-shaped sub-barrel is a double-layer structure with an opening at the bottom. The side wall of the sector-shaped sub-barrel comprises an outer plate and an inner plate. The inner plate and the outer plate are spaced apart to form an ash channel in the middle. A plurality of ash inlets extending circumferentially are spaced apart along the axial direction on the inner plate.

3. The pulse cleaning auxiliary device for bag filter according to claim 2, characterized in that: A plurality of support plates are arranged in the ash channel, and the support plates are connected to the inner plate and the outer plate.

4. The pulse cleaning auxiliary device for bag filter according to claim 2, characterized in that: The sector-shaped sub-drum also includes a plurality of guide mechanisms, each of which corresponds to the ash inlet one by one, and is used to guide the dust between the inner plate and the filter bag to the ash inlet and into the ash channel; The guiding mechanism comprises: An upper guide plate is arranged obliquely, with a lower end connected to the upper side of the ash inlet and an upper end arranged to be separated from the inner plate; A lower guide plate is arranged obliquely, with an upper end connected to the lower side of the ash inlet and a lower end arranged to be separated from the inner plate; Among the two adjacent guide mechanisms, the lower end of the lower guide plate of the upper guide mechanism is connected to the upper end of the upper guide plate of the lower guide mechanism.

5. The pulse cleaning auxiliary device for bag filter according to claim 4, characterized in that: The guiding mechanism further comprises a guide cover, which is arranged in the ash channel, with an upper end connected to the inner plate on the upper side of the ash inlet and a lower end arranged to be spaced apart from the inner plate.

6. The pulse cleaning auxiliary device for bag filter according to claim 1, characterized in that: The linkage mechanism comprises: A plurality of first gears corresponding to the sector-shaped cylinders one by one, and the first gears are connected to the rotating shaft; A gear ring is sleeved on the outside of all the gears, and teeth are arranged on both the inner and outer sides of the gear ring. The inner side of the gear ring is meshed with the gears.

7. The pulse cleaning auxiliary device for bag filter according to claim 6, characterized in that: It comprises a plurality of sleeve assemblies, the linkage mechanism corresponds to the sleeve assemblies one by one, and the plurality of sleeve assemblies are distributed in a plurality of rows and a plurality of columns.

8. The pulse cleaning auxiliary device for bag filter according to claim 7, characterized in that: The driving assembly includes a plurality of driving mechanisms, each of which drives a column or a row of linkage mechanisms to move synchronously; The driving mechanism comprises: a tooth row meshing with the outer side of said ring gear in one row or column of said linkage mechanism; The first driving unit has a power output end connected to the gear row and is used to drive the gear row to reciprocate.

9. A pulse bag dust collector, characterized in that: It comprises a bag filter pulse cleaning auxiliary device as described in any one of claims 1 to 8.

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