Auxiliary ash removal device of cloth bag dust collector
By using a motor-driven cleaning mechanism and a heating cleaning device, the problem of incomplete cleaning of bag filters is solved, achieving comprehensive cleaning of filter bags and long service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI HUIYAO ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-16
AI Technical Summary
Existing auxiliary cleaning devices for baghouse dust collectors are not thorough enough, resulting in some areas of the filter bags not being cleaned sufficiently, which affects the filtration effect and may cause equipment damage.
A cleaning mechanism with a motor drive and a heating function was designed to thoroughly clean the filter bags by moving cleaning brushes and airflow nozzles, and to use a heating box to dry the damp dust for easier cleaning.
This method enables thorough cleaning of the filter bags, avoids incomplete cleaning, extends the service life of the equipment, and improves filtration efficiency.
Smart Images

Figure CN224358161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dust removal devices, specifically an auxiliary dust removal device for a bag filter. Background Technology
[0002] A baghouse dust collector is a dry dust filtration device. It is suitable for collecting fine, dry, non-fibrous dust. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. When dust-laden gas enters the baghouse dust collector, larger, heavier dust particles settle down due to gravity and fall into the ash hopper. Gas containing finer dust particles is purified by trapping the dust as it passes through the filter media. However, during use, the dust filtered by the baghouse dust collector adheres to the filter bags. If not cleaned, this will severely affect the filtration effect and cause excessive pressure difference between the inside and outside of the bags, leading to equipment damage. An existing auxiliary dust cleaning device for baghouse dust collectors (Announcement No.: CN221557823U) has the following disadvantages in use:
[0003] During use, the brush plate moves up and down to clean the dust accumulated on the surface of the dust collector bag. After the outer surface is cleaned, the air duct intermittently sprays compressed air into the dust collector bag to flush out the dust. Since the air duct is installed in a fixed position, the area far from the air duct cannot be fully sprayed with air, resulting in incomplete cleaning. To address this issue, this patent proposes an auxiliary dust removal device for baghouse dust collectors. Utility Model Content
[0004] The purpose of this invention is to provide an auxiliary dust removal device for baghouse dust collectors to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary dust removal device for a bag filter, comprising a housing, a fixing plate fixed to the inner wall of the housing, multiple air outlets at the top of the fixing plate, multiple filter bags installed at the bottom of the fixing plate, the filter bags being located below the air outlets, a cleaning mechanism penetrating inside the housing, the cleaning mechanism including a lead screw rotatably connected between the inner wall of the top of the housing and the fixing plate, a motor fixed to the top of the housing, the output end of the motor penetrating the housing and fixed to the lead screw, a slider screwed to the outer wall of the lead screw, multiple connecting plates fixed to the outer wall of the slider, a push rod fixed to the bottom of the connecting plate, a moving plate fixed to the bottom of the push rod penetrating the fixing plate, multiple mounting ports opened in the moving plate, cleaning brushes fixed in the mounting ports, a conveying pipe fixed between the bottom ends of the connecting plates, a connecting pipe corresponding to each air outlet fixed to the bottom end of the conveying pipe, and an airflow nozzle fixed to the bottom end of the connecting pipe.
[0006] Preferably, a heating box is fixed to the top of the outer shell, a heating wire is fixed inside the heating box, a temperature sensor is installed inside the heating box, a fan is installed on one side of the heating box, an installation pipe is fixedly connected to the top of the delivery pipe, the installation pipe passes through the outer shell and is fixedly connected to the air outlet of the fan, and an air inlet pipe is fixedly connected to the other side of the heating box.
[0007] Preferably, the outer wall of the housing is equipped with a support frame, and the bottom end of the support frame is fixed with multiple support legs.
[0008] Preferably, a controller is mounted on the front of the housing, and the controller is electrically connected to the motor, heating wire and temperature sensor.
[0009] Preferably, the bottom end of the outer shell is fixedly connected to a discharge pipe, and a valve is installed on the discharge pipe.
[0010] Preferably, a door is installed on the back of the outer casing.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] By starting the motor, the motor drives the lead screw to rotate, which in turn moves the slider downwards. The slider's downward movement causes the push rod to move downwards, which in turn moves the moving plate downwards. This downward movement of the moving plate causes the cleaning brush to clean the surface of the filter bag. When the connecting plate moves downwards, it causes the conveying pipe to move downwards, which in turn causes the connecting pipe to move downwards. This movement of the connecting pipe causes the airflow nozzles to move downwards, cleaning different heights of the filter bag and preventing some areas of the filter bag from not being cleaned thoroughly, thus avoiding incomplete cleaning.
[0013] In addition, by setting up a heating box, the heating box heats the air. The heated air enters the delivery pipe through the installation pipe, and then is sprayed out through the airflow nozzle to heat the dust on the filter bag, so that the damp dust is dried and made easier to clean. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the outer shell of this utility model;
[0016] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram of the cleaning brush structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the heating box structure of this utility model.
[0019] In the diagram: 1. Outer shell; 2. Support frame; 3. Fixing plate; 4. Cleaning mechanism; 401. Lead screw; 402. Slider; 403. Connecting plate; 404. Push rod; 405. Moving plate; 406. Conveying pipe; 407. Connecting pipe; 408. Airflow nozzle; 409. Cleaning brush; 5. Filter bag; 6. Air outlet; 7. Heating box; 8. Heating wire. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] A baghouse dust collector is a dry dust filtration device. It is suitable for collecting fine, dry, non-fibrous dust. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. When dust-laden gas enters the baghouse dust collector, larger, heavier dust particles settle down due to gravity and fall into the ash hopper. Gas containing finer dust particles is purified by trapping the dust as it passes through the filter media. However, during use, the dust filtered by the baghouse dust collector adheres to the filter bags. If not cleaned, this will severely affect the filtration effect and cause excessive pressure difference between the inside and outside of the bags, leading to equipment damage. Therefore, an auxiliary dust cleaning device for baghouse dust collectors is needed to solve these problems.
[0022] like Figures 1-5 As shown, this utility model provides a technical solution: an auxiliary dust removal device for a bag filter, including a housing 1, a fixing plate 3 fixed to the inner wall of the housing 1, multiple air outlets 6 opened at the top of the fixing plate 3, multiple filter bags 5 installed at the bottom of the fixing plate 3, the filter bags 5 being located below the air outlets 6, a cleaning mechanism 4 penetrating inside the housing 1, the cleaning mechanism 4 including a lead screw 401 rotatably connected between the inner wall of the top of the housing 1 and the fixing plate 3, a motor fixed to the top of the housing 1, the output end of the motor penetrating the housing 1 and fixed to the lead screw 401, the lead screw... A slider 402 is screwed onto the outer wall of 401. Multiple connecting plates 403 are fixed to the outer wall of slider 402. A push rod 404 is fixed to the bottom end of the connecting plate 403. After the push rod 404 passes through the fixed plate 3, a movable plate 405 is fixed to its bottom end. Multiple installation ports are opened in the movable plate 405. A cleaning brush 409 is fixed in the installation port. A conveying pipe 406 is fixed between the bottom ends of the connecting plates 403. A connecting pipe 407 corresponding to the air outlet 6 is fixedly connected to the bottom end of the conveying pipe 406. An airflow nozzle 408 is fixedly connected to the bottom end of the connecting pipe 407.
[0023] It is important to note that by starting the motor, the motor drives the lead screw 401 to rotate. The rotation of the lead screw 401 causes the slider 402 to move downward. The downward movement of the slider 402 causes the push rod 404 to move downward, which in turn causes the moving plate 405 to move downward. The downward movement of the moving plate 405 causes the cleaning brush 409 to clean the surface of the filter bag 5. When the connecting plate 403 moves downward, it causes the conveying pipe 406 to move downward. The downward movement of the conveying pipe 406 causes the connecting pipe 407 to move downward. The downward movement of the connecting pipe 407 causes the airflow nozzle 408 to move downward, cleaning different heights of the filter bag 5. This prevents uneven rinsing of the filter bag 5 and ensures that some areas are not thoroughly cleaned, resulting in incomplete cleaning.
[0024] like Figure 5 As shown, a heating box 7 is fixed to the top of the outer shell 1. A heating wire 8 is fixed inside the heating box 7. A temperature sensor is installed inside the heating box 7 to monitor the heating temperature. A fan is installed on one side of the heating box 7. An installation pipe is fixedly connected to the top of the delivery pipe 406. The installation pipe passes through the outer shell 1 and is fixedly connected to the air outlet of the fan. The installation pipe is a flexible hose. When the delivery pipe 406 moves, it can drive the installation pipe to move. An air inlet pipe is fixedly connected to the other side of the heating box 7. The air inlet pipe can be connected to the existing air supply mechanism to provide air to the heating box 7.
[0025] It should be noted that by setting up a heating box 7, the heating box 7 heats the air. The heated air enters the delivery pipe 406 through the installation pipe, and then is sprayed out through the airflow nozzle 408 to heat the dust on the filter bag 5, so that the damp dust is dried and made easier to clean.
[0026] like Figure 1 As shown, a support frame 2 is installed on the outer wall of the outer casing 1, and multiple support legs are fixed to the bottom of the support frame 2. A controller is installed on the front of the outer casing 1, and the controller is electrically connected to the motor, heating wire 8, and temperature sensor. A discharge pipe is fixedly connected to the bottom of the outer casing 1, and a valve is installed on the discharge pipe. A door is installed on the back of the outer casing 1.
[0027] It should be noted that the cleaned dust is discharged through the discharge pipe. The electrical components in this solution are controlled by their matching controller, and the control circuit can be implemented by simple programming by those skilled in the art. It is common knowledge in the field and is only used without modification. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.
[0028] Although embodiments of the present 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 present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. An auxiliary dust removal device for a bag filter, comprising a housing (1), characterized in that: A fixing plate (3) is fixed to the inner wall of the outer shell (1). Multiple air outlets (6) are opened at the top of the fixing plate (3). Multiple filter bags (5) are installed at the bottom of the fixing plate (3). The filter bags (5) are located below the air outlets (6). A cleaning mechanism (4) is installed through the outer shell (1). The cleaning mechanism (4) includes a screw rod (401) rotatably connected between the inner wall of the top of the outer shell (1) and the fixing plate (3). A motor is fixed to the top of the outer shell (1). The output end of the motor passes through the outer shell (1) and is fixed to the screw rod (401). A slider (402) is screwed to the outer wall of the screw rod (401). Multiple connecting plates (403) are fixed on the outer wall of the block (402). A push rod (404) is fixed at the bottom of the connecting plate (403). After the push rod (404) passes through the fixed plate (3), a movable plate (405) is fixed at its bottom. Multiple installation ports are opened in the movable plate (405). A cleaning brush (409) is fixed in the installation port. A conveying pipe (406) is fixed between the bottom ends of the connecting plates (403). A connecting pipe (407) corresponding to the air outlet (6) is fixedly connected at the bottom end of the conveying pipe (406). An airflow nozzle (408) is fixedly connected at the bottom end of the connecting pipe (407).
2. The auxiliary dust removal device for a bag filter according to claim 1, characterized in that: A heating box (7) is fixed at the top of the outer shell (1), a heating wire (8) is fixed inside the heating box (7), a temperature sensor is installed inside the heating box (7), a fan is installed on one side of the heating box (7), an installation pipe is fixedly connected to the top of the delivery pipe (406), the installation pipe passes through the outer shell (1) and is fixedly connected to the air outlet of the fan, and an air inlet pipe is fixedly connected to the other side of the heating box (7).
3. The auxiliary dust removal device for a bag filter according to claim 1, characterized in that: The outer wall of the outer shell (1) is equipped with a support frame (2), and the bottom end of the support frame (2) is fixed with multiple support legs.
4. The auxiliary dust removal device for a bag filter according to claim 1, characterized in that: The controller is mounted on the front of the housing (1), and the controller is electrically connected to the motor, heating wire (8) and temperature sensor.
5. The auxiliary dust removal device for a bag filter according to claim 1, characterized in that: The bottom end of the outer shell (1) is fixedly connected to a discharge pipe, and a valve is installed on the discharge pipe.
6. The auxiliary dust removal device for a bag filter according to claim 1, characterized in that: A door is installed on the back of the outer casing (1).