Pulse bag filter convenient for cleaning dust

Abstract

The utility model provides a kind of pulse bag filter convenient to clean ash, belong to dust collector field, including box, the dust removal component for filtering dust and other impurities in gas is fixedly installed in the inside of box, dust cleaning assembly for periodically removing dust is fixedly installed in the inside of box.The utility model when dust-containing gas enters from the box air inlet under the negative pressure effect generated by suction fan, pass through multiple filter bags, filter bag is efficiently trapped dust by the interception of surface fiber, inertial collision and diffusion effect, while fixed frame provides stable support for filter bag and maintains its shape, prevent filter bag from shaking or being damaged due to airflow impact when suction fan operates, with the continuous filtration process, dust gradually accumulates on the outer surface of filter bag to form a dust layer, further enhance filtration effect, then purified air is inhaled into exhaust duct and discharged through the exhaust port of inner top.

Description

Technical Field

[0001] This utility model relates to the field of dust collectors, and more specifically, to a pulse bag dust collector that is easy to clean. Background Technology

[0002] Dust pollution is becoming increasingly serious in industrial development. Traditional dust removal methods (such as cyclone dust collectors and wet dust collectors) are inefficient and cannot meet the needs of high-precision dust removal. A pulse bag filter technology for dust removal has been expanded from traditional industrial fields to emerging industries such as new energy. In the future, it will continue to innovate in the direction of high efficiency and low consumption, intelligent upgrading, and green manufacturing to meet stricter environmental protection standards and industrial production needs.

[0003] A search revealed that Chinese Patent Publication No. CN221230160U discloses "a pulse bag dust collector with self-cleaning function, relating to the field of dust collector technology. This pulse bag dust collector with self-cleaning function includes a dust collector body, an inlet on one side of the dust collector body, and an output pipe fixedly connected to the other side of the dust collector body. A cleaning assembly is provided on the outside of the output pipe. The cleaning assembly includes a hydraulic chamber. An impeller is rotatably connected inside the dust collector body. A power rod is fixedly connected to the front end of the impeller, and a gear is fixedly connected to the front end of the power rod. In this pulse bag dust collector with self-cleaning function, the rotation of the impeller rotatably connected to the dust collector body, in conjunction with the power rod, gear, rack, hydraulic chamber, push rod, and spring, causes the brush rod to reciprocate on the outer surface of the output pipe for cleaning, thus improving the ease of use of the device in long-term use." However, the following defects still exist:

[0004] (1) In actual use, the self-cleaning function of this device is only designed for local areas such as the output pipe, and cannot deeply clean impurities in the air, resulting in poor dust removal effect.

[0005] (2) In actual use, the newly added components such as the impeller and hydraulic chamber of this device require additional driving energy, and the increased mechanical complexity leads to a higher maintenance frequency, which may interfere with pulse jet cleaning. Therefore, a pulse bag filter that is easy to clean is proposed. Utility Model Content

[0006] The purpose of this invention is to address the problems raised in the background art, namely that the self-cleaning function of the existing device is only designed for local areas such as the output pipe, which cannot deeply clean impurities in the air and has poor dust removal effect; the newly added components such as the impeller and hydraulic chamber require additional driving energy; and the increased mechanical structure leads to higher maintenance frequency and interference with pulse jet cleaning.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: a pulse bag dust collector that is easy to clean, comprising a housing, wherein a dust removal component for filtering dust and other impurities in gas is fixedly installed inside the housing, and a cleaning component for periodically removing accumulated dust is fixedly installed inside the housing.

[0009] The dust removal assembly includes a perforated partition fixedly installed inside the housing. Multiple filter bags are snapped onto the perforated partition. A fixing frame is fixedly installed on the side of the multiple filter bags away from the perforated partition. A suction fan is fixedly installed on one side of the housing. An exhaust pipe is fixedly installed at the output end of the suction fan and communicates with the housing. An exhaust port is opened at the top inside the housing. An exhaust pipe is fixedly installed on the exhaust port. A dust hopper is fixedly installed at the bottom of the housing. Support frames are fixedly installed on both sides of the dust hopper.

[0010] As a preferred technical solution of this utility model, the dust removal component includes a placement frame fixedly installed on one side of the housing, an air tank fixedly installed on the placement frame, an electromagnetic pulse valve connected to the outlet of the air tank, a blowpipe fixedly installed at the outlet of the electromagnetic pulse valve, five air pipes connected to the blowpipe, and four jet nozzles fixedly installed on each of the five air pipes, with the four jet nozzles located above the filter bag.

[0011] As a preferred technical solution of this utility model, five filters are fixedly installed inside the box, and an activated carbon adsorption layer is provided between the five filters. An air quality monitor is fixedly installed on one side of the box, and an alarm is provided on the air quality monitor. The alarm is used in conjunction with the air quality monitor.

[0012] As a preferred technical solution of this utility model, a pressure sensor is fixedly installed on one side of the box, and a controller is provided on the pressure sensor. The controller and the pressure sensor are used in conjunction.

[0013] As a preferred technical solution of this utility model, a storage box is fixedly installed at the bottom of the ash hopper, a storage drawer is slidably installed on the storage box, and a handle is fixedly installed on the drawer.

[0014] As a preferred technical solution of this utility model, a protective door is hinged to one side of the box, a rubber protective strip is fixedly installed on the inner edge of the protective door, and a key lock is fixedly installed on one side of the protective door.

[0015] As a preferred technical solution of this utility model, a support plate is fixedly installed at the bottom of the support frame, and four casters are fixedly installed at the bottom of the support plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. By setting up a dust removal component, when the dust removal component starts working, the dust-laden gas enters from the air inlet of the box under the negative pressure generated by the suction fan. It first passes through multiple filter bags that are snapped on the perforated partition. The filter bags efficiently capture dust through the interception of surface fibers, inertial collision and diffusion. At the same time, the fixed frame provides stable support for the filter bags and maintains their shape, preventing the filter bags from shaking or breaking due to airflow impact when the suction fan is running. As the filtration process continues, dust gradually accumulates on the outer surface of the filter bags to form a dust layer, further enhancing the filtration effect. Subsequently, the purified air is discharged into the exhaust pipe through the exhaust port at the top of the box. The dust hopper, as a "temporary warehouse" for dust, can hold a certain amount of dust. The support frames on both sides of the dust hopper ensure the stability of the entire box structure and prevent the box from tilting due to suction fan vibration or dust accumulation. Ultimately, continuous and efficient purification of dust-laden gas and stable collection of dust are achieved.

[0018] 2. By setting up a dust removal component, when dust accumulates on the surface of the filter bag and the pressure difference reaches the set value, compressed air of 0.4-0.7MPa in the air tank is released into the blowpipe in an extremely short time of 0.05-0.1 seconds under the control of the electromagnetic pulse valve. The airflow is split into twenty jet nozzles through five air pipes and sprayed vertically towards the top of the filter bag, forming an instantaneous high-speed airflow that causes the filter bag to vibrate at a high frequency of 100-200Hz. At the same time, the secondary airflow induced by the jet nozzles forms a reverse shock wave. The dual action completely removes the attached dust. The removed dust falls into the dust hopper under the action of gravity. This design can significantly extend the service life of the filter bag (up to 3-5 years) and ensure the long-term stable operation of the dust removal system. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a pulse bag dust collector that is easy to clean, provided by this utility model;

[0020] Figure 2 Right view of a pulse bag filter for easy dust removal provided by this utility model;

[0021] Figure 3 This utility model provides a pulse bag filter that is easy to clean. Figure 2 A schematic diagram of the three-dimensional cross-sectional structure at point AA;

[0022] Figure 4 A schematic diagram of the structure of a dust removal component of a pulse bag filter that is easy to clean, provided by this utility model;

[0023] Figure 5 This utility model provides a structural schematic diagram of a protective door for a pulse bag filter that facilitates dust removal.

[0024] The diagram shows: 1. Housing; 2. Dust removal assembly; 3. Dust cleaning assembly; 201. Perforated partition; 202. Filter bag; 203. Fixing frame; 204. Suction fan; 205. Air outlet duct; 206. Exhaust vent; 207. Exhaust duct; 208. Dust hopper; 209. Support frame; 301. Placement rack; 302. Air tank; 303. Electromagnetic pulse valve; 304. Pulse jet pipe; 305. Air pipe; 306. Jet nozzle; 4. Filter screen; 5. Air quality monitor; 6. Alarm; 7. Pressure sensor; 8. Controller; 9. Storage box; 10. Storage drawer; 11. Handle; 12. Protective door; 13. Rubber protective strip; 14. Key lock; 15. Support plate; 16. Casters. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figure 1 As shown, this embodiment proposes a pulse bag dust collector that is easy to clean, including a housing 1, a dust removal component 2 for filtering dust and other impurities in the gas is fixedly installed inside the housing 1, and a dust removal component 3 for periodically removing accumulated dust is fixedly installed inside the housing 1.

[0030] like Figure 3As shown, the dust removal assembly 2 includes a perforated partition 201 fixedly installed inside the housing 1. Multiple filter bags 202 are snapped onto the perforated partition 201. A fixing frame 203 is fixedly installed on the side of the filter bags 202 away from the perforated partition 201. A suction fan 204 is fixedly installed on one side of the housing 1. An exhaust pipe 205 is fixedly installed at the output end of the suction fan 204 and communicates with the housing 1. An exhaust port 206 is opened at the top inside the housing 1, and an exhaust duct 207 is fixedly installed on the exhaust port 206. A dust hopper 208 is fixedly installed at the bottom of the housing 1, and support frames 209 are fixedly installed on both sides of the dust hopper 208. When the dust removal assembly 2 starts working, the dust-laden gas enters from the air inlet of the housing 1 under the negative pressure generated by the suction fan 204, first passing through the multiple filter bags snapped onto the perforated partition 201. 202. The filter bag 202 efficiently captures dust through the interception, inertial collision and diffusion of surface fibers. At the same time, the fixed frame 203 provides stable support for the filter bag 202 and maintains its shape, preventing the filter bag 202 from shaking or breaking due to airflow impact when the suction fan 204 is running. As the filtration process continues, dust gradually accumulates on the outer surface of the filter bag 202 to form a dust layer, further enhancing the filtration effect. Subsequently, the purified air is discharged through the exhaust port 206 at the top of the inner part into the exhaust pipe 207. The dust hopper 208 serves as a "temporary warehouse" for dust and can hold a certain amount of dust. The support frames 209 on both sides of the dust hopper 208 ensure the stability of the entire box 1 structure and prevent the box 1 from tilting due to vibration of the suction fan 204 or dust accumulation. Ultimately, continuous and efficient purification of dust-laden gas and stable collection of dust are achieved.

[0031] like Figure 4 and Figure 5 As shown, the dust removal assembly 3 includes a placement rack 301 fixedly installed on one side of the housing 1. An air tank 302 is fixedly installed on the placement rack 301. An electromagnetic pulse valve 303 is connected to the outlet of the air tank 302. A blowpipe 304 is fixedly installed at the outlet of the electromagnetic pulse valve 303. Five air pipes 305 are connected to the blowpipe 304. Four jet nozzles 306 are fixedly installed on each of the five air pipes 305. The four jet nozzles 306 are all located above the filter bag 202. During use, when dust accumulates on the surface of the filter bag 202 and the pressure difference reaches a set value, compressed air of 0.4-0.7 MPa in the air tank 302 is released through the electromagnetic pulse valve 302. Under the control of pulse valve 303, the airflow is released into the blowpipe 304 in an extremely short time of 0.05-0.1 seconds. The airflow is then diverted through five air pipes 305 to twenty jet nozzles 306, which spray vertically onto the top of the filter bag 202, forming an instantaneous high-speed airflow. This causes the filter bag 202 to vibrate at a high frequency of 100-200Hz. At the same time, the secondary airflow induced by the jet nozzles 306 forms a reverse shock wave. This dual action completely removes the attached dust. The removed dust falls into the ash hopper 208 under the action of gravity. This design can significantly extend the service life of the filter bag 202 (up to 3-5 years) and ensure the long-term stable operation of the dust removal system.

[0032] like Figure 3 and Figure 5 As shown, five filters 4 are fixedly installed inside the housing 1. An activated carbon adsorption layer is placed between adjacent filters 4. An air quality monitor 5 is fixedly installed on one side of the housing 1. An alarm 6 is installed on the air quality monitor 5. The alarm 6 works in conjunction with the air quality monitor 5. When in use, dust-laden gas enters the housing 1 and flows sequentially through the five filters 4 and four activated carbon adsorption layers. The filters 4 can filter fine particles, and the activated carbon layers adsorb gaseous pollutants such as VOCs, achieving dual purification of particulate matter and organic matter. The purified gas is then monitored in real time by the air quality monitor 5 to detect PM2.5 and TVOC concentrations. When these concentrations exceed the standards, the alarm 6 immediately triggers an audible and visual alarm, reminding staff to check the equipment promptly to ensure that the emitted gas continuously meets environmental standards.

[0033] like Figure 4 As shown, a pressure sensor 7 is fixedly installed on one side of the housing 1. A controller 8 is installed on the pressure sensor 7. The controller 8 and the pressure sensor 7 work together. During the operation of the equipment, the pressure sensor 7 on one side of the housing 1 monitors the pressure difference inside and outside the filter bag 202 in real time. Its high-precision probe converts the pressure signal into an electrical signal and transmits it to the controller 8. When dust accumulates on the surface of the filter bag 202 and the pressure difference rises to the set threshold (usually 1500-2000Pa), the controller 8 immediately starts the dust removal program: on the one hand, it triggers the electromagnetic pulse valve 303 to release high-pressure gas for jet cleaning, and on the other hand, it synchronously adjusts the fan frequency to reduce the system load, prevent the pressure difference from continuing to rise and damaging the filter bag 202, and ensure the safe operation of the equipment.

[0034] like Figure 5 As shown, a storage box 9 is fixedly installed at the bottom of the ash hopper 208, and a storage drawer 10 is slidably installed on the storage box 9. A handle 11 is fixedly installed on the drawer. When in use, the storage box 9 with a sliding drawer is located at the bottom of the ash hopper 208. When dust falls into the storage box 9, the operator only needs to pull the handle 11 on the drawer to smoothly pull out the drawer along the low-resistance slide rail for cleaning. After the dust is emptied, it is pushed back and locked. This design has good sealing performance, which can prevent dust leakage. Moreover, a single dust cleaning operation only takes 3 minutes, which is 60% more efficient than the traditional structure, taking into account both ease of operation and environmental protection.

[0035] like Figure 4 and Figure 5As shown, a protective door 12 is hinged to one side of the enclosure 1. A rubber protective strip 13 is fixedly installed on the inner edge of the protective door 12. A key lock 14 is fixedly installed on one side of the protective door 12. When in use, the protective door 12 on one side of the enclosure 1 adopts a hinged design, which can be opened flexibly and can be opened 180°. The rubber protective strip 13 embedded in the inner edge of the door frame forms a sealed buffer layer, which can prevent dust from leaking out and avoid damage to the enclosure 1 due to collision when closing the door. The key lock 14 configured on the side of the door can realize double-person double-lock management. Moreover, the design of the protective door 12 facilitates maintenance personnel to regularly inspect the equipment.

[0036] like Figure 5 As shown, a support plate 15 is fixedly installed at the bottom of the support frame 209, and four casters 16 are fixedly installed at the bottom of the support plate 15. When in use, the support frame 209 has a high-strength support plate 15 at the bottom, and four casters 16 (polyurethane wheels with brake function, 100mm in diameter) evenly distributed below it, which allows the equipment to be moved flexibly to different work positions. When moving, the wheel brakes can be released, and a single person can push it. When positioning, the brakes can be locked, which can withstand the full load of the equipment without displacement, thus taking into account both the convenience of movement and the stability of operation.

[0037] Specifically, in use, this easy-to-clean pulse bag filter works as follows: When the dust collection component 2 starts working, the dust-laden gas enters from the air inlet of the housing 1 under the negative pressure generated by the suction fan 204. It first passes through multiple filter bags 202 clipped onto the perforated partition 201. The filter bags 202 efficiently capture dust through surface fiber interception, inertial collision, and diffusion. Simultaneously, the fixing frame 203 provides stable support for the filter bags 202 and maintains their shape, preventing the filter bags 202 from shaking or breaking due to airflow impact during the operation of the suction fan 204. As the filtration process continues, dust gradually accumulates on the outer surface of the filter bags 202, forming a dust layer, further enhancing the filtration effect. Subsequently, the purified air flows through the exhaust port 206 at the top and is discharged into the exhaust duct 207. The dust hopper 208 serves as a "temporary warehouse" for the dust, capable of holding a certain amount of dust. The support frames 209 on both sides of the dust hopper 208 ensure the stability of the entire housing 1. The structure is stable, preventing the housing 1 from tilting due to vibration of the suction fan 204 or dust accumulation. This ultimately achieves continuous and efficient purification of dust-laden gas and stable dust collection. When dust accumulates on the surface of the filter bag 202, causing the pressure difference to reach the set value, compressed air of 0.4-0.7MPa in the air tank 302 is released to the blowpipe 304 in an extremely short time of 0.05-0.1 seconds under the control of the electromagnetic pulse valve 303. The airflow is then diverted through five air pipes 305 to twenty jet nozzles 306, which spray vertically towards the top of the filter bag 202, forming an instantaneous high-speed airflow. This causes the filter bag 202 to vibrate at a high frequency of 100-200Hz. At the same time, the secondary airflow induced by the jet nozzles 306 forms a reverse shock wave. This dual action completely peels off the attached dust. The peeled dust falls into the ash hopper 208 under gravity. This design can significantly extend the service life of the filter bag 202 (up to 3-5 years) and ensure the long-term stable operation of the dust removal system.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A pulse-jet bag filter for easy dust removal, comprising a housing (1), characterized in that, A dust removal assembly (2) is fixedly installed inside the housing (1), and a dust removal assembly (3) for periodically removing accumulated dust is fixedly installed inside the housing (1). The dust removal assembly (2) includes a perforated partition (201) fixedly installed inside the housing (1), a plurality of filter bags (202) being snapped onto the perforated partition (201), a fixed frame (203) being fixedly installed on the side of the plurality of filter bags (202) away from the perforated partition (201), a suction fan (204) being fixedly installed on one side of the housing (1), an exhaust pipe (205) being fixedly installed at the output end of the suction fan (204) and communicating with the housing (1), an exhaust port (206) being opened at the top inside the housing (1), an exhaust pipe (207) being fixedly installed on the exhaust port (206), a dust hopper (208) being fixedly installed at the bottom of the housing (1), and support frames (209) being fixedly installed on both sides of the dust hopper (208).

2. The pulse-jet bag filter for easy dust removal according to claim 1, characterized in that, The dust removal assembly (3) includes a placement rack (301) fixedly installed on one side of the housing (1). An air bag (302) is fixedly installed on the placement rack (301). An electromagnetic pulse valve (303) is connected to the outlet of the air bag (302). A blowpipe (304) is fixedly installed at the outlet of the electromagnetic pulse valve (303). Five air pipes (305) are connected to the blowpipe (304). Four jet nozzles (306) are fixedly installed on each of the five air pipes (305). The four jet nozzles (306) are all located above the filter bag (202).

3. A pulse-jet bag filter for easy dust removal according to claim 1, characterized in that, Five filters (4) are fixedly installed inside the housing (1). An activated carbon adsorption layer is provided between the five filters (4). An air quality monitor (5) is fixedly installed on one side of the housing (1). An alarm (6) is provided on the air quality monitor (5). The alarm (6) is used in conjunction with the air quality monitor (5).

4. A pulse-jet bag filter for easy dust removal according to claim 1, characterized in that, A pressure sensor (7) is fixedly installed on one side of the housing (1), and a controller (8) is provided on the pressure sensor (7). The controller (8) and the pressure sensor (7) are used together.

5. A pulse-jet bag filter for easy dust removal according to claim 1, characterized in that, A storage box (9) is fixedly installed at the bottom of the ash hopper (208), and a storage drawer (10) is slidably installed on the storage box (9), with a handle (11) fixedly installed on the drawer.

6. A pulse-jet bag filter for easy dust removal according to claim 1, characterized in that, A protective door (12) is hinged to one side of the box (1), a rubber protective strip (13) is fixedly installed on the inner edge of the protective door (12), and a key lock (14) is fixedly installed on one side of the protective door (12).

7. A pulse-jet bag filter for easy dust removal according to claim 1, characterized in that, The bottom of the support frame (209) is fixedly installed with a support plate (15), and the bottom of the support plate (15) is fixedly installed with four casters (16).

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