Automatic dust removal device for equipment air filter
By using pulse backflushing technology and a dust collection device powered by the loader's air tank, the problem of needing to stop the machine to clean the air filter has been solved. This has enabled automatic cleaning of the filter element and dust collection, improving the operating efficiency of the equipment and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA PINGZHUANG COAL IND (GRP) CO LTD MINE CONSTR ENG BRANCH
- Filing Date
- 2025-10-30
- Publication Date
- 2026-04-28
AI Technical Summary
The existing equipment requires the machine to be stopped when cleaning the air filter, which leads to reduced production efficiency and increased maintenance costs.
Using the loader's air tank as a power source, the filter element is automatically cleaned through pulse backflushing. High-pressure air is used to spray dust and impurities, and the dust collection hopper and collection frame are combined to achieve automatic dust collection and stable fixation.
It enables automatic cleaning of filter elements without stopping the machine, improving the continuous operation capability and efficiency of the equipment, and reducing maintenance costs and equipment downtime losses.
Smart Images

Figure CN224167182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal device technology, and more specifically, to an automatic dust removal device for equipment air filters. Background Technology
[0002] During actual operation of various production equipment, a large amount of dust, sand and other impurities in the air can easily enter the air filter. If the filtration is not sufficient, the impurities will enter the engine, which will aggravate the wear of parts and shorten the engine's service life. At the same time, frequent replacement of the air filter element will increase maintenance costs. Therefore, the filter structure needs to be cleaned frequently.
[0003] The existing method for cleaning the air filter in one-sided equipment involves removing the filter element for cleaning or replacing it after the equipment has been stopped. This method requires stopping the equipment, which may delay continuous operation and reduce production efficiency. Therefore, we propose an automatic dust removal device for the air filter. Utility Model Content
[0004] To solve the above problems, this utility model provides an automatic dust removal device for air filters, adopting the following technical solution:
[0005] The equipment includes an automatic dust removal device for air filters, comprising an installation pipe, a top cover at the top of the installation pipe, a collar fixedly fitted on the side wall of the top cover, a filter element inside the installation pipe, an air inlet pipe at the bottom side wall of the installation pipe, a tee connector inside the top cover, two of the tee connector's ends penetrating the top and side wall of the top cover respectively, a loader air tank on one side of the installation pipe, a control valve connected to one end of the tee connector penetrating the side wall of the top cover, a connecting pipe fixedly connected to one end of the loader air tank opposite the control valve, an air outlet pipe at the top of the filter element, a lower end of the tee connector fitted on the side wall of the air outlet pipe, a housing fixedly fitted on the lower side wall of the installation pipe, a collection frame slidably installed inside the housing, one end of the collection frame penetrating the housing and fixedly fitted with a handle.
[0006] By adopting the above technical solution, during equipment use, the loader's air tank and the three-way connector are connected via a control valve and a connecting pipe. The operator places the filter element inside the installation pipe, then places the top cover on top of the installation pipe, so that the collar on the side wall of the top cover fits onto the side wall of the installation pipe. This collar helps maintain the airtightness of the top cover and installation pipe assembly. The collar and installation pipe are fixed together by a flange. The end of the three-way connector inside the top cover is fitted onto the side wall of the air outlet pipe installed on top of the filter element, and the side wall of the air outlet pipe is fitted with a sealing ring. This sealing ring enhances the airtightness of the connection between the three-way connector and the air outlet pipe. After the equipment is assembled, gas enters the installation pipe through the inlet pipe installed on the side wall of the installation pipe, and after being filtered by the filter element, the gas enters through the outlet pipe. Inside the tee connector, the filtered gas is discharged through one end. When the filter element needs cleaning, compressed air from the loader's air tank is used as the power source to automatically clean the filter element through pulse backflushing. When the control valve is opened, the high-pressure air released from the loader's air tank is sprayed outward from the inside of the filter element, generating a strong impact force that quickly blows out the dust and impurities attached to the surface and pores of the filter element, restoring the filter element to good ventilation performance and ensuring smooth air intake. This eliminates the need for the device to be stopped for disassembly and cleaning, which helps maintain the operating efficiency of the equipment. The cleaned dust falls into the collection frame set below the installation pipe. The collection frame is slidably installed in the box, and a handle is provided on one side of the collection frame, making it easy for workers to pull the collection frame out of the box to clean the dust.
[0007] Furthermore, a dust collection hopper is fixedly installed at the bottom of the installation pipe, and two symmetrically distributed baffles are hinged to the inner walls on both sides of the upper section of the collection frame. The two baffles are inclined on the inner wall of the collection frame.
[0008] By adopting the above technical solution, a dust collection hopper is provided at the bottom of the installation pipe, and a dust filter bag of the prior art is connected to the bottom of the dust collection hopper. The dust filter bag is tubular, which facilitates the entry of dust into the collection frame through the dust filter bag. The collection frame is equipped with baffles, which can prevent the dust inside the collection frame from rising under the force of impact, which is conducive to maintaining the dust collection effect of the equipment. The two baffles are hinged to the collection frame. When cleaning the dust, the staff flips the baffles, thereby opening the port of the collection frame, which is convenient for subsequent dumping of dust.
[0009] Furthermore, two symmetrically distributed sliders are fixedly installed at the bottom of the collection box, and a groove matching the slider is opened on the inner wall of the bottom of the box. Anti-slip pads are fixedly installed on the inner wall of the groove.
[0010] By adopting the above technical solution, a slider is provided at the bottom of the collection box, and a groove matching the slider is opened on the inner wall of the bottom of the box. When the staff pulls the collection box, the collection box slides in the groove on the same side with the slider. The cooperation of the slider and the groove plays a role in restricting and stabilizing the collection box, which helps to maintain the stability of the sliding of the collection box. In addition, an anti-slip pad is provided on the inner wall of the groove. The anti-slip pad helps to increase the friction between the slider and the groove on the same side, which in turn helps to maintain the stability of the slider and the groove engagement and improves the stability of the collection box placement.
[0011] Furthermore, two symmetrically distributed positioning plates are rotatably installed on the side of the box near the handle, and rubber pads are provided on the inner side of both positioning plates.
[0012] By adopting the above technical solution, after the collection box is placed, the staff rotates the positioning plate so that one side of the positioning plate fits against the opposite side of the collection box. The setting of the two positioning plates helps to restrict the collection box, which helps to prevent the collection box from falling out of the box and helps to maintain the stability of the collection box placement.
[0013] Furthermore, three baffles arranged in a ring array are fixedly installed on the inner wall of the installation tube. All three baffles are located below the filter element and are in contact with the bottom end of the filter element.
[0014] By adopting the above technical solution, a baffle is provided on the inner wall of the installation tube. When installing the filter element, the operator places the filter element in the installation tube so that the bottom of the filter element contacts the top of the baffle. The baffle can support the filter element.
[0015] Furthermore, multiple positioning rods arranged in a circular array are fixedly installed at the bottom of the top cover, and a positioning groove matching the positioning rod is opened at the top of the mounting tube.
[0016] By adopting the above technical solution, when installing the top cover, the worker places the top cover above the installation tube, so that the positioning rod installed at the bottom of the top cover and the positioning groove opened at the top of the installation tube engage. Through the cooperation of the positioning rod and the positioning groove, the top cover is positioned and fixed, which facilitates subsequent fixation.
[0017] In summary, this utility model has the following beneficial technical effects:
[0018] (1) In this utility model, compressed air in the loader's air tank is used as a power source. Automatic cleaning of the filter element is achieved by pulse backflushing. When the control valve is opened, the high-pressure air released by the loader's air tank is sprayed outward from the inside of the filter element, generating a strong impact force. This blows out the dust and impurities attached to the surface and pores of the filter element, restoring the filter element to good ventilation performance and ensuring smooth air intake. This eliminates the need for frequent machine shutdowns to disassemble the filter element for manual cleaning, saving maintenance time, improving the continuous operation capability and work efficiency of the equipment, reducing the cost of spare parts procurement and maintenance, and also reducing the losses caused by equipment downtime for maintenance.
[0019] (2) In this utility model, a dust collection hopper is provided at the bottom of the installation pipe, and a dust filter bag of the prior art is connected to the bottom of the dust collection hopper. The dust filter bag is tubular, which makes it easy for dust to enter the collection frame through the dust filter bag. The collection frame is provided with a baffle, which can prevent the dust inside the collection frame from rising under the force of impact, which is conducive to maintaining the dust collection effect of the equipment. Attached Figure Description
[0020] Figure 1 This is a first-view structural schematic diagram of the automatic dust removal device for air filters of this utility model.
[0021] Figure 2 This is a first-view structural schematic diagram of the automatic dust removal device for air filters of this utility model.
[0022] Figure 3 This is a cross-sectional view of the automatic dust removal device for air filters of this utility model.
[0023] Figure 4 This is a diagram showing the filter element in the automatic dust removal device for air filters of this utility model.
[0024] Explanation of the labels in the diagram:
[0025] 1. Installation pipe; 2. Collar; 3. Top cover; 4. T-joint; 5. Control valve; 6. Connecting pipe; 7. Loader air tank; 8. Box body; 9. Positioning plate; 10. Collection frame; 11. Slider; 12. Baffle; 13. Dust hopper; 14. Stop block; 15. Filter element; 16. Air outlet pipe. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.
[0030] Please see Figure 1-4 The equipment includes an automatic dust removal device for air filters, comprising an installation pipe 1, a top cover 3 at the top of the installation pipe 1, a collar 2 fixedly fitted onto the side wall of the top cover 3, a filter element 15 inside the installation pipe 1, an air inlet pipe at the bottom side wall of the installation pipe 1, a three-way connector 4 inside the top cover 3, two of the three-way connector 4 penetrating the top and side walls of the top cover 3 respectively, a loader air tank 7 on one side of the installation pipe 1, and a control valve 5 connected to one end of the three-way connector 4 penetrating the side wall of the top cover 3. A connecting pipe 6 is fixedly connected to one end of the air tank 7, which is opposite to the control valve 5. An air outlet pipe 16 is provided at the top of the filter element 15. The lower end of the three-way connector 4 is sleeved on the side wall of the air outlet pipe 16. A box 8 is fixedly sleeved on the lower side wall of the mounting pipe 1. A collection frame 10 is slidably installed inside the box 8. One end of the collection frame 10 passes through the box 8 and is fixedly installed with a handle. Three blocks 14 arranged in a ring array are fixedly installed on the inner wall of the mounting pipe 1. All three blocks 14 are located below the filter element 15 and are in contact with the bottom end of the filter element 15.
[0031] When using the equipment, the loader's air tank 7 and the three-way connector 4 are connected via a control valve 5 and a connecting pipe 6. The operator places the filter element 15 inside the mounting pipe 1. The inner wall of the mounting pipe 1 has a stop block 14, ensuring the bottom of the filter element 15 contacts the top of the stop block 14, which supports the filter element 15. Then, the top cover 3 is placed above the mounting pipe 1, with the collar 2 on the side wall of the top cover 3 fitting onto the side wall of the mounting pipe 1. The collar 2 helps maintain a tight fit between the top cover 3 and the mounting pipe 1. The filter element 15 is sealed, and the collar 2 and the mounting pipe 1 are fixed by a flange. One end of the tee connector 4 located inside the top cover 3 is sleeved on the side wall of the air outlet pipe 16 installed on the top of the filter element 15, and the side wall of the air outlet pipe 16 is fitted with a sealing ring. The setting of the sealing ring helps to increase the sealing between the tee connector 4 and the air outlet pipe 16. The filter element 15 is pressed by the tee connector 4, and the stop block 14 supports the filter element 15. The cooperation between the tee connector 4 and the stop block 14 helps to maintain the stability of the filter element 15.
[0032] After the equipment is assembled, gas enters the installation pipe 1 through the air inlet pipe installed on the side wall of the installation pipe 1. After being filtered by the filter element 15, the gas enters the three-way connector 4 through the air outlet pipe 16. The filtered gas is discharged through one end of the three-way connector 4. When the filter element 15 needs to be cleaned, the compressed air in the loader's air tank 7 is used as the power source to automatically clean the filter element 15 by pulse backflushing. When the control valve 5 is opened, the high-pressure air released by the loader's air tank 7 is sprayed outward from the inside of the filter element 15, generating a strong impact force to quickly blow out the dust and impurities attached to the surface and pores of the filter element 15, so that the filter element 15 can restore good ventilation performance and ensure smooth air intake. This allows the device to be disassembled and cleaned without stopping the machine, which is conducive to maintaining the operating efficiency of the equipment. The cleaned dust falls into the collection frame 10 set below the installation pipe 1. The collection frame 10 is slidably installed in the box 8. A handle is provided on one side of the collection frame 10, which makes it easy for the staff to pull the collection frame 10 out of the box 8 to clean the dust.
[0033] The dust collection hopper 13 is fixedly installed at the bottom of the mounting pipe 1. Two symmetrically distributed baffles 12 are hinged to the inner walls of both sides of the upper section of the collection frame 10. The two baffles 12 are inclined on the inner wall of the collection frame 10. The dust collection hopper 13 is provided at the bottom of the mounting pipe 1. The bottom of the dust collection hopper 13 is connected to a dust filter bag of the prior art. The dust filter bag is tubular, which facilitates the entry of dust into the collection frame 10 through the dust filter bag. The baffles 12 are provided inside the collection frame 10, which can prevent the dust inside the collection frame 10 from rising under the action of impact, which is conducive to maintaining the dust collection effect of the equipment. The two baffles 12 are hinged to the collection frame 10. When cleaning the dust, the operator flips the baffles 12, thereby opening the port of the collection frame 10, which is convenient for subsequent dumping of dust.
[0034] Two symmetrically distributed sliders 11 are fixedly installed at the bottom of the collection frame 10. The inner wall of the bottom of the box 8 is provided with a groove that matches the sliders 11. Anti-slip pads are fixedly installed on the inner wall of each groove. When the collector pulls the collection frame 10, the collection frame 10 slides with the sliders 11 in the groove on the same side. The cooperation between the sliders 11 and the groove helps to limit and stabilize the collection frame 10, which helps to maintain the stability of the sliding of the collection frame 10. The anti-slip pads on the inner wall of the groove help to increase the friction between the sliders 11 and the groove on the same side, which helps to maintain the stability of the engagement between the sliders 11 and the groove, and improves the stability of the collection frame 10.
[0035] Two symmetrically distributed positioning plates 9 are rotatably installed on the side of the box 8 near the handle. Both positioning plates 9 have rubber pads on their inner sides. After the collection box 10 is placed, the staff rotates the positioning plates 9 so that one side of the positioning plate 9 fits against the opposite side of the collection box 10. The two positioning plates 9 restrict the collection box 10 and help prevent it from falling out of the box 8, thus maintaining the stability of the collection box 10.
[0036] Multiple positioning rods arranged in a circular array are fixedly installed at the bottom of the top cover 3. The top of the mounting tube 1 is provided with a positioning groove that matches the positioning rods. When installing the top cover 3, the operator places the top cover 3 above the mounting tube 1, so that the positioning rods installed at the bottom of the top cover 3 and the positioning grooves opened at the top of the mounting tube 1 engage. Through the cooperation of the positioning rods and the positioning grooves, the top cover 3 is positioned and fixed, which facilitates subsequent fixation.
[0037] The implementation principle of this utility model embodiment is as follows: When the equipment is in use, the loader's air tank 7 and the three-way connector 4 are connected through a control valve 5 and a connecting pipe 6. The operator places the filter element 15 inside the installation pipe 1, and then places the top cover 3 above the installation pipe 1, so that the collar 2 on the side wall of the top cover 3 is fitted onto the side wall of the installation pipe 1. The collar 2 helps to maintain the sealing of the top cover 3 and the installation pipe 1 assembly. The collar 2 and the installation pipe 1 are fixed by a flange. One end of the three-way connector 4 inside the top cover 3 is fitted onto the side wall of the air outlet pipe 16 installed on the top of the filter element 15, and the side wall of the air outlet pipe 16 is fitted with a sealing ring. The sealing ring helps to increase the sealing of the connection between the three-way connector 4 and the air outlet pipe 16. After the equipment is assembled, the gas enters the installation pipe 1 through the air inlet pipe installed on the side wall of the installation pipe 1. The gas is filtered by the filter element 15 and then passes through the outlet pipe. Air pipe 16 enters the three-way connector 4, and the filtered gas is discharged through one end of the three-way connector 4. When the filter element 15 needs to be cleaned, the compressed air in the loader's air tank 7 is used as the power source to automatically clean the filter element 15 through pulse backflushing. When the control valve 5 is opened, the high-pressure air released by the loader's air tank 7 is sprayed outward from the inside of the filter element 15, generating a strong impact force to quickly blow out the dust and impurities attached to the surface and pores of the filter element 15, so that the filter element 15 can restore good ventilation performance and ensure smooth air intake. This allows the device to be disassembled and cleaned without stopping the machine, which is conducive to maintaining the operating efficiency of the equipment. The cleaned dust falls into the collection frame 10 set below the installation pipe 1. The collection frame 10 is slidably installed in the box 8. A handle is provided on one side of the collection frame 10, which makes it easy for the staff to pull the collection frame 10 out of the box 8 to clean the dust.
[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. An automatic dust removal device for air filters, characterized in that: The system includes an installation pipe (1), a top cover (3) on the top of the installation pipe (1), a collar (2) fixedly fitted on the side wall of the top cover (3), the collar (2) fitted on the upper side wall of the installation pipe (1), a filter element (15) inside the installation pipe (1), an air inlet pipe on the bottom side wall of the installation pipe (1), a three-way connector (4) inside the top cover (3), two of the three-way connector (4) penetrating the top and side wall of the top cover (3) respectively, and a loader air tank (7) on one side of the installation pipe (1). The connecting connector (4) penetrates the side wall of the top cover (3) and is connected to a control valve (5). The loader air tank (7) is fixedly connected to a connecting pipe (6) on the side opposite to the control valve (5). The filter element (15) has an air outlet pipe (16) at the top. The lower end of the three-way connector (4) is sleeved on the side wall of the air outlet pipe (16). The lower side wall of the mounting pipe (1) is fixedly sleeved with a box (8). A collection frame (10) is slidably installed inside the box (8). One end of the collection frame (10) penetrates the box (8) and is fixedly installed with a handle.
2. The automatic dust removal device for air filters according to claim 1, characterized in that: The dust collection hopper (13) is fixedly installed at the bottom of the installation pipe (1). Two baffles (12) are hinged to the inner walls on both sides of the upper section of the collection frame (10) and are symmetrically distributed. The two baffles (12) are inclined on the inner wall of the collection frame (10).
3. The automatic dust removal device for air filters according to claim 1, characterized in that: The bottom of the collection box (10) is fixedly installed with two symmetrically distributed sliders (11). The inner wall of the bottom of the box (8) is provided with a groove that matches the sliders (11). The inner wall of the groove is fixedly installed with anti-slip pads.
4. The automatic dust removal device for air filters according to claim 1, characterized in that: The box body (8) has two symmetrically distributed positioning plates (9) mounted on the side near the handle, and the inner side of the two positioning plates (9) is provided with rubber pads.
5. The automatic dust removal device for air filters according to claim 1, characterized in that: The inner wall of the installation tube (1) is fixedly installed with three blocks (14) arranged in a ring array. All three blocks (14) are located below the filter element (15) and in contact with the bottom end of the filter element (15).
6. The automatic dust removal device for air filters according to claim 1, characterized in that: The bottom of the top cover (3) is fixedly installed with a plurality of positioning rods arranged in a ring array, and the top of the mounting tube (1) is provided with a positioning groove that matches the positioning rods.