A self-cleaning filter element and its dust collector

Abstract

The application relates to the technical field of industrial dust removal, in particular to a novel self-cleaning filter element and a dust remover, which comprise a central connecting pipe, a central ventilation pipe combination is arranged below the central connecting pipe, and the central ventilation pipe combination comprises a ventilation pipe; the beneficial effects are that: the complete filter element assembly is formed by the movable filter element pipe assembly and the fixed filter element pipe assembly; the auxiliary filter element plate two and the auxiliary filter element plate one arranged on the side surfaces of the filter element plate two and the filter element plate one respectively form the staggered filter space, the dust absorption and filtration capacity of the filter element is increased, when the movable pipe is rotated by 45 degrees, the filter element plate two and the filter element plate one are staggered, the auxiliary filter element plate two and the auxiliary filter element plate one are respectively expanded and shaken to make the attached dust fall, the dust can be effectively removed through the cooperation of the pulse airflow flushing and the multiple repeated activity process, the self-cleaning purpose of the filter element is achieved, and compared with the traditional laminated filter element, the self-cleaning is more in place.

Description

Technical Field

[0001] This invention belongs to the field of industrial dust removal technology, specifically relating to a self-cleaning filter element and its dust collector. Background Technology

[0002] A dust collector is a device used to remove particulate pollutants from gas. It is widely used in industrial production, commercial environments, and home air purification to improve air quality and protect the health of equipment and personnel. Based on their working principles and technical characteristics, dust collectors can be classified into various types, such as baghouse dust collectors, electrostatic precipitators, and cyclone dust collectors. The filter element is one of the core components of a dust collector, directly responsible for the filtration process—separating particulate matter from the airflow. The design and material selection of the filter element directly affect the overall performance and efficiency of the dust collector. The filter element captures airborne particulate matter through physical interception, inertial impaction, and diffusion effects. Conventional filter elements mostly adopt the form of filter layer pleats and mesh enclosures, and then connect the filter layer, end caps, and other components of the filter element together through adhesive bonding, welding, and other processing methods to achieve the overall strength and dirt-holding capacity of the filter element. Due to its simple structure, ease of manufacture, and convenient installation, it is widely used in dust collector components. Often, due to the limited internal installation space of the dust collector and the installation method of the filter element, the dirt holding capacity and permeability of the filter element are limited within the effective installation space, thus failing to achieve the ideal filtration effect.

[0003] A Chinese patent document with publication number CN111437642B proposes a high-throughput, high-dirt-holding filter cartridge. It solves the aforementioned technical problem by designing a sealing ring assembly with upper and lower sealing interlocking and a permeable outer sheath. Inside the outer sheath, there is a filter layer assembly. This filter layer assembly consists of a bottom filter layer and a disc-shaped filter layer stacked on top of the bottom filter layer with a central opening. However, due to the design of the disc-shaped filter layer, multiple filter layers are generated, which makes it easier for dust and other particles to accumulate around the pores or in the gaps between the filter layers. These areas are often difficult to completely remove contaminants, and over time, this will affect the filtration capacity of subsequent filter cartridges.

[0004] Therefore, this invention proposes a self-cleaning filter element and its dust collector, which solves the problem that it is difficult to clean dust from stacked filter elements in the prior art. By improving the filter element structure and designing a multi-layer deformable filter element tube, the filter element's dirt-holding and filtration capacity is increased. After deformation, the multi-layer filter screens knock and collide with each other, combined with pulse airflow rinsing, effectively achieving the purpose of self-cleaning of the filter element, so that dust can be effectively removed. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a self-cleaning filter element and its dust collector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning filter element and its dust collector, comprising a central connecting pipe, a central ventilation pipe assembly disposed below the central connecting pipe, the central ventilation pipe assembly comprising a ventilation pipe, the upper end of the ventilation pipe being fixedly connected to the lower end of the central connecting pipe, a movable filter element assembly disposed outside the central ventilation pipe assembly, the movable filter element assembly comprising a movable pipe, a filter element plate one disposed outside the movable pipe, a fixed filter element assembly disposed outside the central ventilation pipe assembly, the fixed filter element assembly comprising a lower sealing cover plate fixedly installed on the outer side of the bottom of the ventilation pipe, a limit frame and a filter element plate two disposed above the lower sealing cover plate.

[0007] Preferably, the ventilation duct has a second air groove on its side wall, and a movable air guide plate and a fixed air guide plate are respectively provided on both sides of the second air groove. The movable air guide plate is rotatably installed in the middle of the side wall of the ventilation duct, and a reset gasket is fixedly installed between the side surface of the movable air guide plate and the inner surface of the ventilation duct.

[0008] Preferably, a sealing ring is fixedly installed above the inner surface of the movable tube, the movable tube is rotatably installed on the outer surface of the ventilation tube through the sealing ring, the fixed air guide plate is fixedly installed on the outer surface of the ventilation tube, and the side surface of the fixed air guide plate is in contact with the inner surface of the movable tube.

[0009] Preferably, the outer surface of the movable tube is evenly distributed with side guide tubes, and both the side guide tubes and the side wall of the movable tube are provided with a first air trough that is adapted to the second air trough. The side surface of the movable air guide plate is in contact with the side wall of the first air trough.

[0010] Preferably, an external gear ring and an upper sealing cover are fixedly installed above the outer surface of the movable tube. The lower surface of the upper sealing cover is fixedly connected to the upper surface of the first filter core plate and the side guide tube. The first filter core plate is disposed on the outside of the side guide tube.

[0011] Preferably, a closed baffle is fixedly installed on one side of the inner surface of the first filter core plate, an auxiliary filter core plate is rotatably installed on the other side of the inner surface of the first filter core plate, and a movable connecting rod is movably installed between the side surface of the auxiliary filter core plate and the inner surface of the first filter core plate.

[0012] Preferably, the surface of the lower closed cover plate is provided with staggered ash discharge grooves, the second filter core plate is fixedly installed on the upper surface of the lower closed cover plate, the position of the lower closed cover plate and the position of the first filter core plate are staggered, and the second filter core plate is disposed inside the ash discharge groove.

[0013] Preferably, a closed baffle two is fixedly installed on the outer surface of the second filter core plate near the side of the first auxiliary filter core plate, and the second auxiliary filter core plate is rotatably installed on the other side of the outer surface of the second filter core plate. A movable connecting rod two is movably installed between the inner surface of the second auxiliary filter core plate and the outer surface of the second filter core plate.

[0014] Preferably, the limiting frame is rotatably mounted on the upper surface of the lower closed cover plate. The limiting frame is located on the outer side of the second filter core plate. A reset connecting frame is fixedly mounted on the inner surface of the limiting frame near the rotating shaft. One end of the reset connecting frame is fixedly connected to the side surface of the second closed cover plate. A limiting stop plate is fixedly mounted on the inner surface of the other end of the limiting frame. A dust removal scraper is provided on one side of the reset connecting frame. The dust removal scraper is rotatably mounted on the side wall of the limiting frame. One end of the dust removal scraper is in contact with the outer surface of the second filter core plate.

[0015] The present invention also proposes a dust collector for installing the aforementioned self-cleaning filter element, comprising a dust collector body, an air outlet pipe fixedly installed on the top of the dust collector body, an air inlet pipe fixedly installed on the side wall of the dust collector body, an industrial dust removal fan fixedly installed on one side of the inner surface of the dust collector body, a pulse back-flushing dust removal assembly fixedly installed on the other side of the inner surface of the dust collector body, an installation partition fixedly installed in the middle of the inner surface of the dust collector body, a connecting main pipe provided above the installation partition, the side wall of the connecting main pipe fixedly connected to the suction pipe end of the industrial dust removal fan, a connecting main pipe adapted to the central connecting pipe fixedly installed below the connecting main pipe, and a drive assembly fixedly installed in the middle of the upper surface of the installation partition.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] A complete filter cartridge assembly is formed by the movable filter cartridge assembly and the fixed filter cartridge assembly. The auxiliary filter cartridges 2 and 1 are set on the side of the filter cartridge 2 and the filter cartridge 1 respectively to form a staggered filtration space, which increases the dirt holding capacity of the filter cartridge. When the movable tube is rotated 45°, the filter cartridge 2 and the filter cartridge 1 are staggered, and the auxiliary filter cartridges 2 and 1 are moved and shaken to make the attached dust fall. With the help of pulse airflow flushing and repeated movement, the dust can be effectively removed, and the filter cartridge can achieve the purpose of complete self-cleaning. Compared with the traditional stacked filter cartridge, the self-cleaning is more thorough, which solves the problem that it is difficult to clean the dust around the pores and in the gaps between the filter layers of the stacked filter cartridge. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the filter element of the present invention;

[0019] Figure 2This is a bottom view of the overall structure of the filter element of the present invention;

[0020] Figure 3 This is a top view of the filter element of the present invention under normal filtration conditions;

[0021] Figure 4 This is a schematic diagram of the internal structure of the filter element under normal filtration conditions according to the present invention;

[0022] Figure 5 This is a schematic diagram of the overall structure of the filter element in its self-cleaning state according to the present invention;

[0023] Figure 6 This is a schematic diagram of the overall bottom view of the filter element in its self-cleaning state according to the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the filter element in its self-cleaning state according to the present invention;

[0025] Figure 8 This is a top view of the filter element in its self-cleaning state according to the present invention;

[0026] Figure 9 This is a schematic diagram of the overall structure of the movable filter tube assembly of the present invention;

[0027] Figure 10 This is a bottom view of the overall structure of the movable filter tube assembly of the present invention;

[0028] Figure 11 This is a schematic diagram of the overall structure of the fixed filter tube assembly of the present invention;

[0029] Figure 12 This is a schematic diagram of the overall structure of the central ventilation duct assembly of the present invention;

[0030] Figure 13 This is a schematic diagram of the overall structure of the dust collector body of the present invention;

[0031] Figure 14 This is a schematic diagram of one side of the overall structure of the dust collector body of the present invention;

[0032] Figure 15 This is a schematic diagram of the internal structure of the dust collector body of the present invention;

[0033] Figure 16 This is a schematic diagram of the filter element installation structure of the present invention.

[0034] In the diagram: 1. Central connecting pipe; 2. Movable filter tube assembly; 21. Movable pipe; 211. Sealing ring; 212. Air duct one; 22. External gear ring; 23. Upper sealing cover; 24. Filter core plate one; 241. Sealing baffle one; 242. Auxiliary filter core plate one; 243. Movable connecting rod one; 25. Side guide pipe; 3. Fixed filter tube assembly; 31. Lower sealing cover; 311. Ash discharge chute; 32. Limiting frame; 321. Limiting stop plate; 322. Reset connecting frame; 323. Dust removal scraper; 33. Filter core plate II; 331. Enclosed baffle II; 332. Auxiliary filter core plate II; 333. Movable connecting rod II; 4. Central ventilation duct assembly; 41. Ventilation duct; 42. Air duct II; 43. Movable air guide plate; 431. Reset gasket; 432. Fixed air guide plate; 5. Dust collector body; 51. Air outlet duct; 52. Air inlet duct; 53. Industrial dust collector fan; 54. Pulse backflushing dust collector assembly; 55. Mounting partition; 551. Drive assembly; 56. Connecting main pipe; 561. Sealing sleeve. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figures 1 to 16This invention provides a technical solution: a self-cleaning filter element, including a central connecting pipe 1, a central ventilation pipe assembly 4 below the central connecting pipe 1, the central ventilation pipe assembly 4 including a ventilation pipe 41, the upper end of the ventilation pipe 41 being fixedly connected to the lower end of the central connecting pipe 1, a movable filter element assembly 2 being provided outside the central ventilation pipe assembly 4, the movable filter element assembly 2 including a movable pipe 21, a second air groove 42 being opened on the side wall of the ventilation pipe 41, a movable air guide plate 43 and a fixed air guide plate 432 being respectively provided on both sides of the second air groove 42, the movable air guide plate 43 being rotatably installed in the middle of the side wall of the ventilation pipe 41, and the side surface of the movable air guide plate 43... A reset gasket 431 is fixedly installed between the ventilation pipe 41 and the inner surface of the ventilation pipe 41. A sealing ring 211 is fixedly installed above the inner surface of the movable pipe 21. The movable pipe 21 is rotatably installed on the outer surface of the ventilation pipe 41 through the sealing ring 211. A fixed air guide plate 432 is fixedly installed on the outer surface of the ventilation pipe 41. The side surface of the fixed air guide plate 432 is in contact with the inner surface of the movable pipe 21. Side guide pipes 25 are evenly distributed on the outer surface of the movable pipe 21. Both the side guide pipes 25 and the side wall of the movable pipe 21 are provided with air grooves 212 that are adapted to the air grooves 42. The side surface of the movable air guide plate 43 is in contact with the side wall of the air grooves 212.

[0038] In this embodiment, the central connecting pipe 1 is mainly used for installation and connection with the internal components of the dust collector body 5. The ventilation pipe 41 is mainly used for clean air to enter and exit upwards, and for pulse airflow to be transported downwards to backwash the movable filter tube assembly 2 and the fixed filter tube assembly 3. Clean air and pulse airflow mainly enter through the second air duct 42 or are evenly dispersed and output. The difference is that, in the filtration state, the second air duct 42 coincides with the first air duct 212 in cooperation with the movable pipe 21. At this time, the movable air guide plate 43 and the fixed air guide plate 432 cooperate to maintain the maximum opening and closing state, so that the airflow is kept to the maximum. When the pulse airflow performs backwashing, the outer gear ring 22 will rotate at a certain angle, with the maximum rotation angle set to 45°. In this state, the positions of the second air duct 42 and the first air duct 212 are offset, and the movable air guide plate 432 is offset. The air deflector 43 is deflected by the movement of the air duct 212, and the opening angle with the fixed air guide plate 432 becomes smaller. At this time, the airflow velocity increases due to the narrowing of the channel, resulting in a stronger backwashing force and a cleaner wash. At the same time, the deflection of the movable air guide plate 43 also guides the airflow, allowing the airflow to be directly washed on the filter screens of filter core plate 24 and filter core plate 33 after being guided by the movable air guide plate 43. This further improves the backwashing effect of the filter screens of filter core plate 24 and filter core plate 33. After the backwashing is completed, the movable pipe 21 rotates and resets, causing the positions of air duct 212 and air duct 42 to re-align and reset. At this time, the movable air guide plate 43 also resets under the rebound action of the reset pad 431, maintaining the maximum opening angle with the fixed air guide plate 432, so that the airflow is restored to the maximum.

[0039] Example 2

[0040] Please see Figures 1 to 16 Based on Embodiment 1, in order to increase the filtration area of ​​the filter element, this embodiment further proposes that a filter element plate 24 is provided on the outer side of the movable tube 21, an external gear ring 22 and an upper sealing cover plate 23 are fixedly installed on the upper surface of the outer surface of the movable tube 21, the lower surface of the upper sealing cover plate 23 is fixedly connected to the filter element plate 24 and the upper surface of the side guide tube 25, the filter element plate 24 is provided on the outer side of the side guide tube 25, a sealing baffle 241 is fixedly installed on one side of the inner surface of the filter element plate 24, an auxiliary filter element plate 242 is rotatably installed on the other side of the inner surface of the filter element plate 24, a movable connecting rod 243 is movably installed between the side surface of the auxiliary filter element plate 242 and the inner surface of the filter element plate 24, and a fixed filter element tube assembly 3 is provided on the outer side of the central ventilation tube assembly 4 to fix the filter element. The pipe assembly 3 includes a lower closed cover plate 31 fixedly installed on the outer side of the bottom of the ventilation pipe 41. A limit frame 32 and a filter core plate 23 are provided above the lower closed cover plate 31. Ash discharge grooves 311 are staggered on the surface of the lower closed cover plate 31. The filter core plate 23 is fixedly installed on the upper surface of the lower closed cover plate 31. The position of the lower closed cover plate 31 is staggered with the position of the filter core plate 24. The filter core plate 23 is located inside the ash discharge groove 311. A closed baffle 231 is fixedly installed on the outer surface of the filter core plate 23 near the auxiliary filter core plate 242. An auxiliary filter core plate 232 is rotatably installed on the other side of the outer surface of the filter core plate 233. A movable connecting rod 233 is movably installed between the inner surface of the auxiliary filter core plate 232 and the outer surface of the filter core plate 233.

[0041] In this embodiment, filter core plate 24 and filter core plate 33 are staggered. Filter core plate 24 is connected to auxiliary filter core plate 242 via movable connecting rod 243, and filter core plate 33 is connected to auxiliary filter core plate 332 via movable connecting rod 333. This seals the sides between filter core plate 24 and filter core plate 33. Filter material is then laid and installed on the surfaces of filter core plate 24, filter core plate 33, auxiliary filter core plate 242, and auxiliary filter core plate 332. For example, filter paper, filter bags, or filter screens form a complete filter element assembly. The auxiliary filter plates 242 and 332, which are in contact with each other, act as a sealing barrier between the second and third closed baffles 331 and the first closed baffle 241. This design allows the filter plates 33 and 242, along with the auxiliary filter plates 332 and 242 respectively located on the sides, to form an interlaced filtration space during normal filtration, increasing the filter element's dirt-holding capacity. (Modular tube 21) The upper sealing cover 23 not only seals the top of filter core plate 24 and filter core plate 33, but also connects filter core plate 24 and side guide pipe 25. When the movable pipe 21 rotates 45° for backwashing, filter core plate 33 and filter core plate 24 are staggered. At this time, the sealing baffle 231 and sealing baffle 241 eliminate the contact blocking effect of auxiliary filter core plate 242 and auxiliary filter core plate 332. Auxiliary filter core plate 332 and auxiliary filter core plate 242 will move and unfold under the cooperation of movable connecting rod 233 and movable connecting rod 243, causing a shaking that makes it easier for the attached dust to fall. With pulse airflow flushing and repeated movement, dust can be effectively removed, achieving the purpose of complete self-cleaning of the filter element. The lower sealing cover 31 mainly serves to fix filter core plate 33 and connect to ventilation pipe 41. The purpose of opening the dust discharge groove 311 is to make it easy for the dust on the surface of the inner filter core plate 33 to be discharged from below after falling.

[0042] Example 3

[0043] Please see Figures 1 to 16 Based on Embodiment 2, in order to increase the self-cleaning effect of the filter element, this embodiment also proposes that the limiting frame 32 is rotatably installed on the upper surface of the lower closed cover plate 31, the limiting frame 32 is set on the outer side of the filter element plate 33, a reset connecting frame 322 is fixedly installed on the inner side surface of the limiting frame 32 near the rotating shaft, one end of the reset connecting frame 322 is fixedly connected to the side surface of the closed baffle 331, a limiting stop plate 321 is fixedly installed on the inner side surface of the other end of the limiting frame 32, a dust removal scraper 323 is provided on one side of the reset connecting frame 322, the dust removal scraper 323 is rotatably installed on the side wall of the limiting frame 32, and one end of the scraper of the dust removal scraper 323 is in contact with the outer surface of the filter element plate 33.

[0044] In this embodiment, the limiting frame 32 not only limits the rotation of the filter core plate 24, but also assists in cleaning the surface of the filter core plate 33. Specifically, when the filter element is backwashed for self-cleaning, the filter core plate 24 rotates 45° with the movable tube 21. At this time, the filter core plate 24 pushes the limiting plate 321, causing the limiting frame 32 to flip outward at a certain angle. At this time, the dust removal scraper 323 slides along the outer surface of the filter core plate 33 due to the pressure from the other side of the limiting frame 32, which plays a certain auxiliary cleaning role on the outer surface of the filter core plate 33. Furthermore, the side of the limiting plate 321 can be provided with protruding ridges, so that as the filter core plate 24 rotates and pushes forward, it can contact the protruding ridges and cause slight shaking, making it easier for dust to be shaken off. After the backwashing is completed, the filter core plate 24 rotates and resets with the movable tube 21. At this time, the limiting frame 32 resets with the cooperation of the reset connecting frame 322.

[0045] Example 4

[0046] Please see Figures 1 to 16 Based on Embodiment 3, this embodiment also proposes a dust collector for installing the aforementioned self-cleaning filter element, comprising a dust collector body 5, an air outlet pipe 51 fixedly installed on the top of the dust collector body 5, an air inlet pipe 52 fixedly installed on the side wall of the dust collector body 5, an industrial dust removal fan 53 fixedly installed on one side of the inner surface of the dust collector body 5, a pulse back-flushing dust removal assembly 54 fixedly installed on the other side of the inner surface of the dust collector body 5, an installation partition 55 fixedly installed in the middle of the inner surface of the dust collector body 5, a connecting main pipe 56 provided above the installation partition 55, the side wall of the connecting main pipe 56 fixedly connected to the suction pipe end of the industrial dust removal fan 53, a connecting main pipe 56 adapted to the central connecting pipe 1 fixedly installed below the connecting main pipe 56, and a drive assembly 551 fixedly installed in the middle of the upper surface of the installation partition 55;

[0047] In this embodiment, a power supply and control device is installed on the outside of the dust collector body 5. A partition 55 divides the interior of the dust collector body 5 into two spaces. The upper space is used to install components such as the industrial dust collector fan 53 and the pulse jet dust collector assembly 54. The lower space is used to install the filter element, which serves as the air filtration chamber. The central connecting pipe 1 connects to the sealing sleeve 561, allowing the filter element to be installed as a whole. The connection method can be a threaded connection or a bolt connection. It should be noted that the sealing sleeve 561 mainly wraps around the outer surface of the central connecting pipe 1 and does not affect the movable pipe 21. The external gear ring 22 needs to... After the filter element is initially installed by fixing it to the outside of the movable tube 21 with bolts, ensuring it is in normal filtration condition, adjust the position of the external gear ring 22 so that it is properly meshed with the gear of the drive assembly 551 before fixing the external gear ring 22. At this point, the filter element installation is complete. The drive assembly 551 mainly consists of a motor fixedly mounted on the upper surface of the mounting partition 55 and a gear mounted on the motor output shaft. The pulse backflushing dust removal assembly 54 mainly consists of a compressed air tank, an electromagnetic pulse valve, and a backflushing pipe. The backflushing pipe has four sets of pipes that penetrate the top inner wall of the main pipe 56 and extend into the sealing sleeve 561. Inside, at the bottom, it facilitates the delivery of backwash airflow to the ventilation duct 41. During normal operation of the dust collector body 5, dusty air enters the air filter chamber at the bottom of the dust collector body 5 through the inlet duct 52. At this time, the industrial dust collector fan 53 works to draw air through the connecting main duct 56. The air is filtered by the second filter core plate 33, the first filter core plate 24, and the auxiliary filter core plates 332 and 242 respectively set on the side. After the dust is removed, the clean air enters the ventilation duct 41 through the air duct 42 and is discharged through the outlet duct 51 under the action of the industrial dust collector fan 53. In the backwash mode, the drive component... The motor of drive assembly 551 drives the outer gear ring 22 to rotate via gears, causing the movable tube 21 and its external components to be misaligned with the ventilation tube 41 and its external components. At this time, the electromagnetic pulse valve of the pulse backflushing dust removal assembly 54 opens, allowing the compressed air tank airflow to enter the ventilation tube 41 through the backflushing pipe, backflushing the filter core plate 23, filter core plate 1 24, auxiliary filter core plate 232 and auxiliary filter core plate 1 242. After the backflushing is completed, the motor of drive assembly 551 drives the outer gear ring 22 to rotate in the opposite direction via gears, causing the movable tube 21 and its external components to reset with the ventilation tube 41 and its external components, and continuing the filtration.

[0048] Example 5

[0049] Please see Figures 1 to 16 Based on Example 4, this example also proposes a method for using a self-cleaning filter element and its dust collector, including the following steps:

[0050] Step 1: Install the filter element. Open the closed door in front of the dust collector body 5, and connect the central connecting pipe 1 through the mounting partition 55 and the sealing sleeve 561 to complete the initial filter element installation. Note that at this time, the filter element plate 1 24 and the filter element plate 2 33 are in the correct position and in normal filtration state. Then, adjust the position of the outer gear ring 22 so that it is in normal meshing with the gear of the drive assembly 551, and then fix the outer gear ring 22 to the outside of the movable tube 21. The filter element installation is complete.

[0051] Step 2: Normal filtration is performed. Dust-laden air enters the air filtration chamber at the bottom of the dust collector body 5 through the air inlet pipe 52. At this time, the industrial dust collector fan 53 works to draw air through the connecting main pipe 56. The air passes through the staggered filtration space formed by the filter core plate 23, filter core plate 124, and auxiliary filter core plate 232 and auxiliary filter core plate 1242 set on the side to filter out dust. The clean air then enters the ventilation pipe 41 through the overlapping air duct 1212 and air duct 242. Under the action of the industrial dust collector fan 53, it is conveyed upward through the sealing sleeve 561 and the air outlet pipe 51, and finally discharged through the air outlet pipe 51.

[0052] Step 3: During backwashing, the motor of the drive assembly 551 drives the external gear ring 22 to rotate via gears, causing the movable pipe 21 to rotate. Filter core plate 23 and filter core plate 24 are misaligned. At this time, the sealing baffles 231 and 241 eliminate the contact blocking effect of the auxiliary filter core plate 242 and auxiliary filter core plate 232. The auxiliary filter core plate 232 and auxiliary filter core plate 242 will move and unfold under the cooperation of the movable connecting rods 233 and 243, causing a shaking that makes it easier for the attached dust to fall. At this time, the electromagnetic pulse valve of the pulse backflushing dust removal assembly 54 opens, allowing the compressed air to flow through the backwash pipe into the ventilation pipe 41. Because the positions of the air duct 22 and the air duct 212 are misaligned, the movable air guide plate 43 is deflected by the movement of the air duct 212, and interacts with the fixed air guide plate. As the opening angle of plate 432 decreases, the airflow velocity increases due to the narrowing of the channel. Simultaneously, the deflection of movable guide plate 43 guides the airflow, allowing it to directly wash the filter screens of filter core plate 23, filter core plate 124, auxiliary filter core plate 232, and auxiliary filter core plate 1242. During the backwashing process, the motor of partition plate 55 drives movable tube 21 to rotate back and forth repeatedly within a certain angle via gears. This, combined with pulse airflow washing and repeated movements, effectively removes dust and achieves complete self-cleaning of the filter element. Finally, after the backwashing is completed, the motor of drive component 551 drives the external gear ring 22 to rotate in the opposite direction via gears, causing movable tube 21 and its external components to completely reset with ventilation tube 41 and its external components, restoring the dust collector body 5 to the filtration state.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning filter cartridge comprising a central adapter pipe (1), characterized in that: The lower part of the center adapter pipe (1) is provided with a center ventilation pipe combination (4), the center ventilation pipe combination (4) includes a ventilation pipe (41), the upper end of the ventilation pipe (41) is fixedly connected with the lower end of the center adapter pipe (1), the outer part of the center ventilation pipe combination (4) is provided with a movable filter core pipe assembly (2), the movable filter core pipe assembly (2) includes a movable pipe (21), the outer side of the movable pipe (21) is provided with a filter core plate one (24), the outer side of the center ventilation pipe combination (4) is provided with a fixed filter core pipe assembly (3), the fixed filter core pipe assembly (3) includes a lower closed cover plate (31) fixedly installed on the outer side of the bottom of the ventilation pipe (41), the upper part of the lower closed cover plate (31) is provided with a limiting frame (32) and a filter core plate two (33); the outer surface of the movable pipe (21) is fixedly installed with an outer gear ring (22) and an upper closed cover plate (23), the lower surface of the upper closed cover plate (23) is fixedly connected with the upper surface of the filter core plate one (24) and the side flow guide pipe (25), the filter core plate one (24) is arranged on the outer side of the side flow guide pipe (25); the inner surface of the filter core plate one (24) is fixedly installed with a closed blocking frame one (241) on one side, the inner surface of the filter core plate one (24) is rotatably installed with an auxiliary filter core plate one (242) on the other side, the side surface of the auxiliary filter core plate one (242) and the inner surface of the filter core plate one (24) are movably installed with a movable connecting rod one (243); the outer surface of the filter core plate two (33) is fixedly installed with a closed blocking frame two (331) on one side close to the auxiliary filter core plate one (242), the outer surface of the filter core plate two (33) is rotatably installed with an auxiliary filter core plate two (332) on the other side, the inner side surface of the auxiliary filter core plate two (332) and the outer surface of the filter core plate two (33) are movably installed with a movable connecting rod two (333); the filter core plate two (33) is fixedly installed on the upper surface of the lower closed cover plate (31), the positions of the lower closed cover plate (31) and the filter core plate one (24) are staggered, when the movable pipe (21) is rotated by 45°, the filter core plate two (33) and the filter core plate one (24) are staggered.

2. A self-cleaning filter element according to claim 1, characterized in that: The side wall of the ventilation pipe (41) is provided with a wind groove two (42), the two sides of the wind groove two (42) are respectively provided with a movable air deflector (43) and a fixed air deflector (432), the movable air deflector (43) is rotatably installed in the middle part of the side wall of the ventilation pipe (41), the side surface of the movable air deflector (43) and the inner surface of the ventilation pipe (41) are fixedly installed with a reset washer (431).

3. A self-cleaning filter element according to claim 2, wherein: The inner surface of the movable pipe (21) is fixedly installed with a sealing ring (211) on the upper part, the movable pipe (21) is rotatably installed on the outer surface of the ventilation pipe (41) through the sealing ring (211), the fixed air deflector (432) is fixedly installed on the outer surface of the ventilation pipe (41), the side surface of the fixed air deflector (432) is in contact with the inner surface of the movable pipe (21).

4. A self-cleaning filter element according to claim 3, wherein: The outer side surface of the movable pipe (21) is uniformly distributed with side flow guide pipes (25), the side flow guide pipes (25) and the side wall of the movable pipe (21) are both provided with air flume one (212) matched with air flume two (42), the side surface of the movable air deflector (43) is in contact with the side wall of the air flume one (212).

5. The self-cleaning filter element of claim 1, wherein: The surface of the lower closed cover plate (31) is staggered with ash discharge grooves (311), and the filter core plate two (33) is arranged on the inner side of the ash discharge grooves (311).

6. The self-cleaning filter element of claim 1, wherein: The limiting frame (32) is rotatably installed on the upper surface of the lower closed cover plate (31), the limiting frame (32) is arranged on the outer side of the filter core plate two (33), the inner side surface of the limiting frame (32) close to the one end of the rotating shaft is fixedly installed with a reset connecting frame (322), one end of the reset connecting frame (322) is fixedly connected with the side surface of the closed baffle two (331), the inner side surface of the other end of the limiting frame (32) is fixedly installed with a limiting baffle (321), one side of the reset connecting frame (322) is provided with a dust removal scraper (323), the dust removal scraper (323) is rotatably installed on the side wall of the limiting frame (32), the scraper one end of the dust removal scraper (323) is in contact with the outer surface of the filter core plate two (33).

7. A dust collector for mounting a self-cleaning filter element according to any one of claims 1-6, comprising a dust collector body (5), a top of the dust collector body (5) is fixedly provided with an air outlet pipe (51), a side wall of the dust collector body (5) is fixedly provided with an air inlet pipe (52), an inner surface of the dust collector body (5) is fixedly provided with an industrial dust removal fan (53) on one side, and an inner surface of the dust collector body (5) is fixedly provided with a pulse back-blowing dust removal assembly (54) on the other side. The inner surface of the dust remover main body (5) is fixedly installed with an installation partition plate (55) in the middle, the upper side of the installation partition plate (55) is provided with a connecting main pipe (56), the side wall of the connecting main pipe (56) is fixedly connected with the suction pipe end of the industrial dust removal fan (53), the lower side of the connecting main pipe (56) is fixedly installed with a connecting main pipe (56) matched with the center connecting pipe (1), the upper surface of the installation partition plate (55) is fixedly installed with a driving assembly (551) in the middle.

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