A multi-layer cartridge filter cleaning device

Abstract

This invention relates to the field of filter cleaning technology and provides a multi-layer cartridge filter cleaning device, including a rotating mechanism, a sweeping mechanism, and a vacuuming mechanism. The rotating mechanism includes a rotating shaft, a rotating arm, and a vacuuming pipe. The rotating shaft is coaxially arranged at the axis of the multi-layer cartridge filter to be cleaned. The rotating arm is arranged longitudinally along the multi-layer cartridge filter and fixedly connected to the rotating shaft. A connecting groove is provided inside the rotating arm. The vacuuming pipe is rotatably connected to the rotating arm through a bearing, and the inlet of the vacuuming pipe is connected to the connecting groove. The sweeping mechanism includes multiple rotating rods, which are respectively arranged in multiple annular grooves of the multi-layer cartridge filter and rotatably connected to the rotating arm. The outer wall of the rotating rods is provided with bristles. The rotating arm is provided with a drive assembly for driving the rotating rods to rotate synchronously. The vacuuming mechanism is used to perform comprehensive vacuuming of the interior of the multiple annular grooves.

Description

Technical Field

[0001] This invention relates to the field of filter cleaning technology, and more specifically to a multi-layer cartridge filter cleaning device. Background Technology

[0002] In the cigarette production process, the air cleanliness of the production workshop directly affects the quality of cigarette products. Therefore, cigarette factories generally use multi-layer cylindrical filters to purify the dusty air in the workshop. Multi-layer cylindrical filters have the advantages of large filtration area, high filtration accuracy, compact structure, and stable air resistance. Its core working principle is as follows: dusty air is pressurized by a fan and sent into the annular cavity of multiple layers of cylindrical filter media. Dust is trapped on the outer surface of the filter media, and the purified air is discharged through the innermost layer of filter media, completing the air purification process.

[0003] During long-term continuous operation, dust will continuously accumulate on the surface of the filter media. If it is not cleaned in time, it will cause a sudden increase in the filter's air resistance, a decrease in ventilation volume, and a reduction in filtration efficiency. In severe cases, it can also cause the filter media to clump and break, significantly shortening the filter's service life.

[0004] Currently, there are two main types of cleaning methods for multi-layer cartridge filters: one is manual disassembly and cleaning, which requires disassembling the filter and cleaning the filter media by manual brushing and compressed air blowing. However, multi-layer cartridge filters have a multi-channel coaxial annular groove structure with a small internal space, making manual cleaning difficult, inefficient, and time-consuming. It is also prone to creating blind spots and cannot achieve a thorough cleaning of the entire surface of the filter media. The other type is pulse backflushing cleaning, which uses high-pressure pulse airflow to impact the filter media in the reverse direction, causing dust to fall off. However, this method is prone to damaging the filter media fibers, and for multi-layer nested cartridge structures, the backflushing airflow pressure of the inner filter media is severely reduced, resulting in extremely poor cleaning effect and failing to meet the cleaning requirements of multi-layer cartridge filters.

[0005] A small number of mechanical cleaning devices for cartridge filters have emerged in the existing technology, but these devices generally have two major drawbacks: First, the suction pipe rotates synchronously with the rotating mechanism, and the pipe is prone to twisting, bending or even breaking during long-term operation, resulting in poor equipment stability; Second, the suction port can only achieve suction at a fixed position and cannot cover the entire length of the annular groove, leaving cleaning dead corners and making it impossible to achieve a comprehensive and thorough cleaning of multi-layer cartridge filters, which is difficult to meet the large-scale and high-frequency filter cleaning needs of cigarette factories. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a multi-layer cartridge filter cleaning device that realizes automated, all-area cleaning without dead corners of the multi-layer cartridge filter, and greatly improves cleaning efficiency and cleaning effect.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer cylindrical filter cleaning device, comprising a rotating mechanism, a sweeping mechanism, and a dust collection mechanism;

[0008] The rotating mechanism includes a rotating shaft, a rotating arm, and a suction pipe. The rotating shaft is coaxially arranged at the axis of the multi-layer cartridge filter to be cleaned. The rotating arm is arranged longitudinally along the multi-layer cartridge filter and fixedly connected to the rotating shaft. A connecting groove is opened inside the rotating arm. The suction pipe is rotatably connected to the rotating arm through a bearing, and the inlet of the suction pipe is connected to the connecting groove.

[0009] The cleaning mechanism includes multiple rotating rods, which are disposed in multiple annular grooves of the multi-layer cylindrical filter and rotatably connected to the rotating arm. The outer wall of the rotating rods is provided with bristles, and the rotating arm is provided with a drive assembly for driving each rotating rod to rotate synchronously.

[0010] The dust collection mechanism is used to perform comprehensive dust collection inside multiple annular grooves.

[0011] Furthermore, the dust collection mechanism includes multiple telescopic tubes, guide columns, guide shafts, and connecting plates. The multiple telescopic tubes are disposed in multiple annular grooves. Each telescopic tube includes a fixed tube and a movable tube that are connected to each other. The fixed tube is connected to the connecting groove. The movable tube is slidably sleeved on the outer wall of the fixed tube and can reciprocate along the axial direction of the multi-layer cylindrical filter. Multiple dust collection nozzles are installed at intervals on the movable tube. The guide column is coaxially fixed on the rotating shaft. The guide column has multiple annular guide grooves. Two adjacent annular guide grooves are connected by an inclined groove. The guide shaft is fixed on the innermost movable tube and extends into the annular guide groove. The connecting plate is fixedly connected to all movable tubes to realize the synchronous extension and retraction of multiple movable tubes.

[0012] Furthermore, the rotating mechanism also includes a drive motor, which is fixedly mounted on the tail end face of the multi-layer cylindrical filter. The output shaft of the drive motor is coaxially and fixedly connected to the rotating shaft to drive the rotating shaft to rotate.

[0013] Furthermore, the drive assembly includes a control motor, a drive pulley, multiple sets of driven pulleys, and a timing belt. The control motor is fixed on the rotating arm, the drive pulley is fixed to the output shaft of the control motor, the multiple sets of driven pulleys are fixed one-to-one to the ends of multiple rotating rods, and the timing belt is wrapped around the outside of the drive pulley and all the driven pulleys.

[0014] Furthermore, both ends of each rotating rod are rotatably connected to the rotating arm via bearings, and the bristles are evenly distributed along the axial direction of the rotating rod.

[0015] Furthermore, the multiple annular guide grooves are arranged at equal intervals along the axial direction of the guide post, and the two ends of the inclined groove are smoothly connected to the ends of two adjacent annular guide grooves.

[0016] Furthermore, the connecting plate is arranged perpendicular to the axial direction of the movable tube, and the ends of all movable tubes are welded and fixed to the connecting plate.

[0017] Furthermore, the outlet of the suction pipe is used to connect to a negative pressure vacuum cleaner.

[0018] The beneficial effects of this invention are:

[0019] 1. The present invention provides a multi-layer cylindrical filter cleaning device, which drives the cleaning mechanism and the dust collection mechanism to rotate circumferentially around the filter axis through a rotating mechanism. The rotating rod of the cleaning mechanism rotates synchronously to achieve comprehensive circumferential cleaning of the filter material in each annular groove of the multi-layer cylindrical filter. It can efficiently remove the dust attached to the surface of the filter material, completely replace manual cleaning operations, and greatly reduce the cost of manual operation.

[0020] 2. The present invention provides a multi-layer cylindrical filter cleaning device. The dust collection mechanism, through the linkage of guide columns, guide shafts and connecting plates, drives all movable tubes to move synchronously along the axial direction during the circumferential rotation of the rotating arm, using the guiding effect of the annular guide groove and the inclined groove. This allows the dust collection nozzles on the movable tubes to completely cover the entire length of the filter's annular groove, achieving dust collection without dead angles in the entire area. This completely solves the problem of cleaning dead angles in existing cleaning devices and ensures the comprehensiveness and thoroughness of the cleaning. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;

[0023] Figure 3 This is a front view structural diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the rotating arm;

[0025] Figure 5 This is a three-dimensional structural diagram of the rotating rod;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the movable tube;

[0027] Figure 7 This is a three-dimensional structural diagram of the suction pipe and bearing.

[0028] Reference numerals: 1-Multi-layer cartridge filter, 2-Annular groove, 3-Rotating shaft, 4-Drive motor, 5-Rotating arm, 6-Connecting groove, 7-Dust suction pipe, 8-Bearing, 9-Rotating rod, 10-Brush bristles, 11-Control motor, 12-Pulley, 13-Synchronous belt, 14-Fixed pipe, 15-Moving pipe, 16-Dust suction nozzle, 17-Guide column, 18-Annular guide groove, 19-Inclined groove, 20-Guide shaft, 21-Connecting plate. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] In this application, unless otherwise expressly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] In the description of this application, it should be understood that the terms "longitudinal", "horizontal", "level", "top", "bottom", "upper", "lower", "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention.

[0032] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0033] like Figures 1-7 As shown, this invention provides a multi-layer cylindrical filter cleaning device, mainly adapted to the multi-layer cylindrical filter 1 commonly used in cigarette factory production systems. The multi-layer cylindrical filter 1 has multiple coaxially nested annular grooves 2, and the filter media is fixedly laid on the inner wall of the annular grooves 2 to form a multi-layer filtration structure. The above content is all prior art, and the specific structure will not be described in detail here.

[0034] like Figure 1 and Figure 2As shown, the multi-layer cylindrical filter cleaning device of this embodiment includes three main modules: a rotating mechanism, a sweeping mechanism, and a vacuuming mechanism. These three modules work together to achieve automated cleaning and vacuuming of the filter.

[0035] The rotating mechanism provides circumferential rotational power for the entire device. Its core components include a rotating shaft 3, a drive motor 4, a rotating arm 5, and a suction pipe 7. The rotating shaft 3 is coaxially positioned at the center of the multi-layer cartridge filter 1 to be cleaned. The drive motor 4 is detachably and fixedly mounted on the tail end face of the multi-layer cartridge filter 1 using bolts. The drive motor 4 is a geared motor, and its output shaft is coaxially and fixedly connected to the end of the rotating shaft 3 via a coupling. When the drive motor 4 starts, it drives the rotating shaft 3 to rotate uniformly around the filter's axis. The rotating arm 5 is a long, rigid arm positioned longitudinally along the outside of the multi-layer cartridge filter 1. One end of the rotating arm 5 is welded and fixed to the end of the rotating shaft 3, allowing the rotating arm 5 to rotate circumferentially around the filter's axis synchronously with the rotating shaft 3. The rotating arm 5 has a hollow structure with an axially oriented connecting groove 6 inside to guide the suction airflow. The suction pipe 7 is a rigid pipe, and its end is rotatably connected to the end of the rotating arm 5 via a bearing 8. The inlet of the suction pipe 7 is sealed to the end of the connecting groove 6 by a seal, and the outlet of the suction pipe 7 is connected to an external negative pressure vacuuming device (such as an industrial vacuum cleaner or a central dust collection system). With this structural design, when the rotating arm 5 rotates circumferentially with the rotating shaft 3, the suction pipe 7 can remain stationary, completely avoiding the problem of pipe torsion damage.

[0036] The cleaning mechanism is used to mechanically clean the surface of the filter media, removing dust adhering to the surface. Its core components include multiple rotating rods 9 and a drive assembly. Each rotating rod 9 corresponds one-to-one with annular grooves 2 of the multi-layer cylindrical filter 1, and is arranged within each annular groove 2. Both ends of each rotating rod 9 are rotatably connected to a rotating arm 5 via bearings. Nylon bristles 10 are uniformly fixed axially to the outer wall of each rotating rod 9. The ends of the bristles 10 make interference contact with the filter media surface within the annular groove 2, ensuring that the bristles can fully contact the filter media fibers during cleaning, achieving effective dust removal.

[0037] In this embodiment, the drive assembly includes a control motor 11, a drive pulley, multiple sets of driven pulleys 12, and a synchronous belt 13. The control motor 11 is bolted to the end of the rotating arm 5. The drive pulley is interference-fitted to the output shaft of the control motor 11. The multiple sets of driven pulleys 12 are correspondingly interference-fitted to the ends of multiple rotating rods 9. The synchronous belt 13 is wrapped around the outside of the drive pulley and all the driven pulleys 12, forming a synchronous transmission structure. When the control motor 11 starts, it can drive all the rotating rods 9 to rotate synchronously through the transmission of the drive pulley, the synchronous belt 13, and the driven pulleys 12, so that the bristles 10 continuously rotate and clean the surface of the filter material.

[0038] The dust collection mechanism is used to immediately suck up the dust that has been swept off, preventing secondary dust adhesion. Its core components include multiple telescopic tubes, guide columns 17, guide shafts 20, and connecting plates 21. Each telescopic tube corresponds one-to-one with annular grooves 2 of the multi-layer cartridge filter 1, and is arranged within each annular groove 2. Each telescopic tube includes a fixed tube 14 and a movable tube 15 arranged coaxially. One end of the fixed tube 14 is sealed and connected to the connecting groove 6 of the rotating arm 5. The movable tube 15 is slidably fitted onto the outer wall of the fixed tube 14, allowing it to slide back and forth along the transverse (i.e., axial) direction of the multi-layer cartridge filter 1. Limiting protrusions are provided at both ends of the outer wall of the fixed tube 14 as sliding limit structures. A sliding groove is provided on the inner wall of the movable tube 15 to cooperate with the limiting protrusions, preventing the movable tube 15 from slipping during sliding. Multiple mounting holes are spaced apart along the axial direction on the wall of the movable tube 15. A suction nozzle 16 is fixed in each mounting hole, with the opening of the suction nozzle 16 facing the filter material surface to ensure that the swept dust can be fully sucked up.

[0039] The guide post 17 is a cylindrical column, coaxially welded and fixed to the rotating shaft 3, and can rotate synchronously with the rotating shaft 3. Multiple annular guide grooves 18 are formed on the outer wall of the guide post 17, and are evenly spaced along the axial direction of the guide post 17. Adjacent annular guide grooves 18 are smoothly connected by inclined grooves 19, forming a continuous closed guide track. One end of the guide shaft 20 is vertically fixed to the end of the innermost movable tube 15, and the other end of the guide shaft 20 extends into the annular guide groove 18, allowing it to slide along the guide track. The connecting plate 21 is a rigid flat plate, perpendicular to the axial direction of the movable tube 15. The ends of all movable tubes 15 are welded and fixed to the connecting plate 21, allowing all movable tubes 15 to move synchronously with the innermost movable tube 15.

[0040] The specific working process of this invention is as follows:

[0041] When performing cleaning operations, first assemble the entire device onto the multi-layer cylindrical filter 1 to be cleaned, so that the rotating shaft 3 is coaxially inserted through the center of the filter, and the rotating rod 9 and the telescopic tube are inserted into each annular groove 2 of the filter in a corresponding manner. Connect the outlet of the suction pipe 7 to the external negative pressure dust collection equipment to complete the preparations before the operation.

[0042] The drive motor 4, control motor 11, and external negative pressure dust collection equipment are started simultaneously. The drive motor 4 drives the rotating shaft 3 to rotate at a constant speed, which in turn drives the rotating arm 5 to rotate circumferentially around the axis of the filter, so that the rotating rod 9 and the telescopic tube move circumferentially in the annular groove 2. At the same time, the control motor 11 drives all the rotating rods 9 to rotate synchronously through the pulley 12 and the synchronous belt 13. The bristles 10 on the rotating rods 9 continuously brush the surface of the filter material, effectively removing the dust attached to the surface of the filter material.

[0043] During the circumferential rotation of the rotating arm 5, the guide column 17 rotates synchronously with the rotating shaft 3. The guide shaft 20 slides cyclically along the annular guide groove 18 and the inclined groove 19 on the guide column 17. Through the axial guiding effect of the inclined groove 19, the innermost movable tube 15 is driven to move back and forth in a step-by-step manner along the axis. Then, through the linkage effect of the connecting plate 21, all movable tubes 15 are driven to extend and retract synchronously along the axis, so that the dust suction nozzle 16 on the movable tube 15 completely covers the entire length area of ​​the annular groove 2 along the axis while rotating circumferentially.

[0044] The negative pressure airflow generated by the external negative pressure vacuuming device passes sequentially through the suction pipe 7, the connecting groove 6 inside the rotating arm 5, the fixed pipe 14 and the movable pipe 15 of the telescopic pipe, and finally flows out at high speed from the suction nozzle 16, instantly sucking in the dust that is swept off by the brush bristles 10. The dust is then transported by the airflow to the external negative pressure vacuuming device for centralized collection, realizing the simultaneous operation of sweeping and vacuuming, and completing the full-area cleaning of the multi-layer cartridge filter 1 without dead corners.

[0045] After the operation is completed, turn off the control motor 11, drive motor 4 and external negative pressure dust collection equipment in sequence, and then remove the device from the filter. The operation is convenient and does not require disassembly of the filter, which can achieve online cleaning of the filter.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-layer cartridge filter cleaning device, characterized in that: Includes a rotating mechanism, a sweeping mechanism, and a vacuuming mechanism; The rotating mechanism includes a rotating shaft, a rotating arm, and a suction pipe. The rotating shaft is coaxially arranged at the axis of the multi-layer cartridge filter to be cleaned. The rotating arm is arranged longitudinally along the multi-layer cartridge filter and fixedly connected to the rotating shaft. A connecting groove is opened inside the rotating arm. The suction pipe is rotatably connected to the rotating arm through a bearing, and the inlet of the suction pipe is connected to the connecting groove. The cleaning mechanism includes multiple rotating rods, which are disposed in multiple annular grooves of the multi-layer cylindrical filter and rotatably connected to the rotating arm. The outer wall of the rotating rods is provided with bristles, and the rotating arm is provided with a drive assembly for driving each rotating rod to rotate synchronously. The dust collection mechanism is used to perform comprehensive dust collection inside multiple annular grooves.

2. The multi-layer cylindrical filter cleaning device according to claim 1, characterized in that: The dust collection mechanism includes multiple telescopic tubes, guide columns, guide shafts, and connecting plates. The multiple telescopic tubes are arranged in multiple annular grooves. Each telescopic tube includes a fixed tube and a movable tube that are connected to each other. The fixed tube is connected to the connecting groove. The movable tube is slidably sleeved on the outer wall of the fixed tube and can reciprocate along the axial direction of the multi-layer cylindrical filter. Multiple dust collection nozzles are installed at intervals on the movable tube. The guide column is coaxially fixed on the rotating shaft. The guide column has multiple annular guide grooves. Two adjacent annular guide grooves are connected by an inclined groove. The guide shaft is fixed on the innermost movable tube and extends into the annular guide groove. The connecting plate is fixedly connected to all movable tubes to realize the synchronous extension and retraction of multiple movable tubes.

3. The multi-layer cylindrical filter cleaning device according to claim 1, characterized in that: The rotating mechanism also includes a drive motor, which is fixedly installed on the tail end face of the multi-layer cylindrical filter. The output shaft of the drive motor is coaxially and fixedly connected to the rotating shaft to drive the rotating shaft to rotate.

4. The multi-layer cylindrical filter cleaning device according to claim 1, characterized in that: The drive assembly includes a control motor, a drive pulley, multiple sets of driven pulleys, and a timing belt. The control motor is fixed on the rotating arm, the drive pulley is fixed to the output shaft of the control motor, the multiple sets of driven pulleys are fixed one-to-one to the ends of multiple rotating rods, and the timing belt is wrapped around the outside of the drive pulley and all the driven pulleys.

5. A multi-layer cylindrical filter cleaning device according to claim 1, characterized in that: Both ends of each rotating rod are rotatably connected to the rotating arm via bearings, and the bristles are evenly distributed along the axial direction of the rotating rod.

6. A multi-layer cylindrical filter cleaning device according to claim 2, characterized in that: The multiple annular guide grooves are arranged at equal intervals along the axial direction of the guide post, and the two ends of the inclined groove are smoothly connected to the ends of two adjacent annular guide grooves.

7. A multi-layer cylindrical filter cleaning device according to claim 2, characterized in that: The connecting plate is arranged perpendicular to the axial direction of the movable tube, and the ends of all movable tubes are welded and fixed to the connecting plate.

8. A multi-layer cartridge filter cleaning device according to claim 1, characterized in that: The outlet of the suction pipe is used to connect to a negative pressure suction device.

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