A high-efficiency wet filtration module of a mine dust removal fan
By introducing pretreatment and wet treatment components into the mining dust removal fan, combined with motor-driven scraper cleaning, the problem of damage to the equipment caused by large dust particles has been solved, achieving efficient dust removal and extended equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN COAL CHEM RES INST
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-19
AI Technical Summary
The high-efficiency wet filter modules of existing mining dust removal fans, when not pretreated, cause large dust particles to damage the fan and filter screen, shortening their service life, and failing to completely remove dust.
A high-efficiency wet filtration module including a pretreatment device and a wet treatment component was designed. The pretreatment component removes large dust particles through a conical cylinder and a dust collection device. The wet treatment component further purifies the gas through a sprayer and a filtration section. Combined with a motor-driven scraper, the inner wall of the dust collection device is cleaned to prevent secondary dust generation.
It effectively removes large dust particles, reduces damage to fans and filters, extends equipment life, and achieves thorough gas purification. It also features a water circulation function to reduce the risk of secondary dust generation.
Smart Images

Figure CN224379897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air dust removal and filtration, and in particular to a high-efficiency wet filtration module for a mining dust removal fan. Background Technology
[0002] Mining operations generate a large amount of dust, which not only seriously affects the physical and mental health of workers but also pollutes the surrounding air. Therefore, dust removal fans are needed during mining operations. Fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas; they are a type of driven fluid machinery. To improve the dust removal efficiency of fans, they are usually paired with high-efficiency wet filter modules to filter and clean dust-laden air. The performance of the filter module directly determines the dust removal efficiency and system reliability. Such high-efficiency wet filter modules consist of wet treatment components and filter screens. In practical applications, the dust-laden air generated in mining operations contains large dust particles. Currently, dust removal fans do not pre-treat the dust-laden air using their high-efficiency wet filter modules, resulting in damage to the fans and filter screens in the filter modules from large dust particles, thus reducing their service life.
[0003] Therefore, it is necessary to provide a new high-efficiency wet filtration module for mining dust removal fans to solve the above-mentioned technical problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a high-efficiency wet filtration module for a mining dust removal fan.
[0005] The high-efficiency wet filtration module for a mining dust collector provided by this utility model includes a pretreatment device, a mounting frame, and a filtration section. The pretreatment device includes a pretreatment component and a wet treatment component. The mounting frame extends axially towards the center and has a first fixed frame and a second fixed frame. The pretreatment component is connected to the first fixed frame and the second fixed frame by bolts. A water tank is provided on one side of the mounting frame. The top of the water tank is fixedly connected to the first mounting frame and the second mounting frame. The wet treatment component is connected to the first mounting frame by bolts, and the filtration section is installed on the second mounting frame by bolts.
[0006] Furthermore, the pretreatment component includes a conical cylinder, which is connected to a fixing frame one by bolts. A volute is fixedly connected to the top of the conical cylinder, and an air inlet extends outward from the volute. A connecting pipe is fixedly connected to the top of the volute, and the connecting pipe extends into the interior of the volute. A dust collection device is fixedly connected to the bottom of the conical cylinder, and the dust collection device is connected to a fixing frame two by bolts.
[0007] Furthermore, the dust collection device includes a connecting rod and a frustum-shaped outer shell. The two ends of the connecting rod are fixedly connected to the inner wall of the dust collection device. A central shaft extends from the horizontal center of the connecting rod towards the conical cylinder. An anti-vortex plate is rotatably connected to the end of the central shaft away from the dust collection device. The frustum-shaped outer shell is bolted to the dust collection device. A motor is fixedly connected to the bottom of the frustum-shaped outer shell. The output end of the motor extends into the interior of the dust collection device and is fixedly connected to a rotating rod. Scrapers are fixedly connected to both ends of the rotating rod.
[0008] Furthermore, the wet treatment component includes a sprayer, which is fixedly connected to the end of the connecting pipe away from the volute. A water pipe is threadedly connected to the outer wall of the sprayer, and the water pipe extends out of the connecting pipe. A tapered pipe is fixedly connected to the end of the connecting pipe away from the volute. A guide groove is provided on the inner wall of the tapered pipe. A collection pipe extends from the end of the guide groove away from the volute toward the water tank. A fan is fixedly connected to the end of the wet treatment component away from the guide groove. A filter section is fixedly connected to the end of the fan away from the wet treatment component. A filter screen is installed in the middle section of the filter section. A recovery section is fixedly connected to the end of the filter section away from the fan.
[0009] Furthermore, the recycling section is provided with a curved section, and the inner wall of the curved section is provided with a second guide groove. The recycling section extends vertically upward with an air outlet. The second guide groove extends from one end near the filter section toward the water tank with a second collection pipe, which extends into the water tank.
[0010] Furthermore, a water pump is fixedly connected to the outer wall of the water tank, and a water pipe extends from the water pump. The water pipe is threadedly connected to the water pump. The end of the first collection pipe away from the wet treatment component is threadedly connected to the outer wall of the water tank, and the end of the second collection pipe away from the recovery section is threadedly connected to the outer wall of the water tank. An inlet is provided on the outer wall of the water tank.
[0011] Compared with related technologies, the high-efficiency wet filtration module for the mining dust collector provided by this utility model has the following beneficial effects:
[0012] This utility model provides a high-efficiency wet filtration module for a mining dust removal fan. The gas to be treated is effectively treated by the pretreatment component, and then passes through the wet treatment component and the filtration section. This greatly reduces the damage of large dust particles to the fan and filter screen, increases the service life of the machine, and makes the gas treatment more thorough. The dust collection device is equipped with a scraper driven by a motor. One end of the scraper is attached to the inner wall, which can effectively remove larger dust particles attached to the inner wall. At the same time, during the rotation process, small dust particles are confined inside the device, reducing secondary dust generation in the pretreatment component. Attached Figure Description
[0013] Figure 1A schematic diagram of a preferred embodiment of the high-efficiency wet filtration module for a mining dust removal fan provided by this utility model;
[0014] Figure 2 for Figure 1 The diagram shows the side structure.
[0015] Figure 3 for Figure 1 The diagram shows a cross-sectional structure.
[0016] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the wet treatment components, filtration section, and recovery section.
[0017] Numbered in the diagram: 1. Pretreatment device; 2. Pretreatment component; 201. Conical cylinder; 202. Spiral cylinder; 203. Air inlet; 204. Dust collection device; 205. Connecting rod; 206. Shaft rod; 207. Anti-vortex plate; 208. Frustum-shaped outer shell; 209. Motor; 210. Rotating rod; 211. Scraper; 212. Mounting frame; 213. Fixing frame one; 214. Fixing frame two; 3 1. Filter section; 301. Filter screen; 4. Connecting pipe; 5. Wet treatment assembly; 501. Sprayer; 502. Water pipe; 503. Conical pipe; 504. Guide channel one; 505. Collection pipe one; 506. Fan; 6. Mounting bracket one; 7. Mounting bracket two; 8. Recovery section; 801. Guide channel two; 802. Collection pipe two; 803. Air outlet; 9. Water tank; 10. Water pump; 11. Water inlet. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] In practical implementation, a high-efficiency wet filtration module for a mining dust collector fan has the following structure: Figure 1 — Figure 4As shown, the device includes a pretreatment unit 1, a mounting frame 212, and a filter section 3. The pretreatment unit 1 includes a pretreatment component 2 and a wet treatment component 5. The mounting frame 212 extends axially towards the center and has a first fixing frame 213 and a second fixing frame 214. The pretreatment component 2 includes a conical cylinder 201, which is connected to the first fixing frame 213 by bolts. A volute cylinder 202 is welded to the top of the conical cylinder 201. An air inlet 203 extends outward from the volute cylinder 202. A connecting pipe 4 is welded to the top of the volute cylinder 202 and extends into the interior of the volute cylinder 202. A dust collection device 204 is welded to the bottom of the conical cylinder 201 and is connected to the second fixing frame 214 by bolts. A water tank 9 is provided on one side of the mounting frame 212. Mounting frame 6 and mounting frame 7 are welded to the top of the water tank 9. The wet treatment component 5 is connected to mounting frame 6 by bolts. The filter section 3 is installed on mounting frame 7 by bolts. A water pump 10 is welded to the outer wall of the water tank 9. A water pipe 502 extends from the water pump 10 and is threadedly connected to the water pump 10. The water pump 10 draws water from the water tank 9 to provide moisture for the wet treatment.
[0020] The dust collection device 204 includes a connecting rod 205, with both ends of the connecting rod 205 welded to the inner wall of the dust collection device 204. A central shaft 206 extends from the horizontal center of the connecting rod 205 toward the conical cylinder 201. An anti-vortex plate 207 is rotatably connected to the end of the central shaft 206 away from the dust collection device 204, which can reduce secondary dust generation inside the dust collection device 204. The bottom of the dust collection device 204 is a frustum-shaped outer shell 208, which can collect large dust particles through the surrounding slope. The frustum-shaped outer shell 208 is connected to the dust collection device 204 by bolts. A motor 209 is welded to the bottom end of the frustum-shaped outer shell 208. The output end of the motor 209 extends into the interior of the dust collection device 204 and is welded to a rotating rod 210. Scrapers 211 are welded to both ends of the rotating rod 210. One end of the scraper 211 is attached to the inner wall, which can effectively remove larger dust particles attached to the inner wall. At the same time, during the rotation process, small dust particles are confined inside the device to prevent secondary dust generation in the pretreatment component 2.
[0021] The wet treatment assembly 5 includes a sprayer 501, which is welded to the end of the connecting pipe 4 near the wet treatment end. The sprayer 501 is fixedly connected to the end of the connecting pipe 4 away from the volute 202. A water pipe 502 is threadedly connected to the outer wall of the sprayer 501, and the water pipe 502 extends out of the connecting pipe 4. A tapered pipe 503 is fixedly connected to the end of the connecting pipe 4 away from the volute 202. A guide channel 504 extends from the end away from the volute 202 toward the water tank 9, and a collection pipe 505 extends out. Through the guide channel 504, the spray can be... The water wasted by the device 501 is collected and returned to the water tank 9 via the collection pipe 505. A fan 506 is welded to the end of the wet treatment component 5 away from the guide channel 504. A filter section 3 is welded to the end of the fan 506 away from the wet treatment component 5. A filter screen 301 is installed in the middle of the filter section 3. The filter screen 301 is designed to be detachable for easy replacement and maintenance. The edge of the filter screen 301 has sealing devices such as rubber gaskets to ensure the airtightness of the filter section 3. A recovery section 8 is welded to the end of the filter section 3 away from the fan 506. The recovery section 8 is provided with a bend, and a guide channel 801 is provided on the inner wall of the bend. An air outlet 803 extends vertically upward from the recovery section 8. A collection pipe 802 extends from the end of the guide channel 801 near the filter section 3 toward the water tank 9. The collection pipe 802 extends into the water tank 9, and a portion of the water in the humid airflow can be recovered through the guide channel 801. One end of the collection pipe 505, away from the wet treatment component 5, is threaded to the outer wall of the water tank 9. The other end of the collection pipe 802, away from the recovery section 8, is threaded to the outer wall of the water tank 9. The outer wall of the water tank 9 is provided with a water inlet 11.
[0022] The working principle of this utility model is as follows: The gas to be treated enters through the air inlet 203 and spirals downward through the volute 202, forming a negative pressure zone at the bottom of the conical cylinder 201. Large dust particles in the gas fall into the dust collection device 204 due to gravity. The anti-vortex plate 207 and the rotating scraper 211 driven by the motor 209 installed in the dust collection device 204 can effectively suppress secondary dust. The rotating scraper 211 can also effectively clean the inner wall of the dust collection device 204. After the device is used, the frustum-shaped outer shell 208 can be removed and the collected large dust particles can be poured out. The gas after the large dust particles are removed enters the wet treatment component 5 through the connecting pipe 4 extending into the volute 202 due to the negative pressure. After mixing with the water mist sprayed by the sprayer 501, it enters the filter section 3. After being filtered by the filter screen 301, the fine dust is also cleaned up. Then it enters the recovery section 8. The guide groove installed in the recovery section 8 can effectively recover the moisture contained in the discharged gas, achieving a certain water circulation effect.
[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high efficiency wet filtration module for a mine dust extraction fan, characterised in that, The device includes a pretreatment device (1), a mounting frame (212), and a filter section (3). The pretreatment device (1) includes a pretreatment component (2) and a wet treatment component (5). The mounting frame (212) extends axially towards the center and has a first fixing frame (213) and a second fixing frame (214). The pretreatment component (2) is connected to the first fixing frame (213) and the second fixing frame (214) by bolts. A water tank (9) is provided on one side of the mounting frame (212). The top of the water tank (9) is fixedly connected to a first mounting frame (6) and a second mounting frame (7). The wet treatment component (5) is connected to the first mounting frame (6) by bolts. The filter section (3) is installed on the second mounting frame (7) by bolts.
2. The high efficiency wet filtration module for mine dust removal fan according to claim 1, characterized in that, The pretreatment component (2) includes a conical cylinder (201), which is connected to a fixing frame (213) by bolts. A volute cylinder (202) is fixedly connected to the top of the conical cylinder (201). An air inlet (203) extends outward from the volute cylinder (202). A connecting pipe (4) is fixedly connected to the top of the volute cylinder (202). The connecting pipe (4) extends into the interior of the volute cylinder (202). A dust collection device (204) is fixedly connected to the bottom of the conical cylinder (201). The dust collection device (204) is connected to a fixing frame (214) by bolts.
3. The high efficiency wet filtration module for mine dust removal fan according to claim 2, characterized in that, The dust collection device (204) includes a connecting rod (205) and a frustum-shaped outer shell (208). The two ends of the connecting rod (205) are fixedly connected to the inner wall of the dust collection device (204). A central shaft (206) extends from the horizontal center of the connecting rod (205) toward the conical cylinder (201). An anti-vortex plate (207) is rotatably connected to the end of the central shaft (206) away from the dust collection device (204). The frustum-shaped outer shell (208) is connected to the dust collection device (204) by bolts. A motor (209) is fixedly connected to the bottom end of the frustum-shaped outer shell (208). The output end of the motor (209) extends into the dust collection device (204) and is fixedly connected to a rotating rod (210). Scrapers (211) are fixedly connected to both ends of the rotating rod (210).
4. The high efficiency wet filtration module for mine dust removal fan according to claim 3, characterized in that, The wet treatment assembly (5) includes a sprayer (501), which is fixedly connected to the end of the connecting pipe (4) away from the volute (202). A water pipe (502) is threadedly connected to the outer wall of the sprayer (501), and the water pipe (502) extends out of the connecting pipe (4). A tapered pipe (503) is fixedly connected to the end of the connecting pipe (4) away from the volute (202). A guide groove (504) is provided on the inner wall of the tapered pipe (503). A collection pipe (505) extends from the end of the flow channel (504) away from the volute (202) toward the water tank (9). A fan (506) is fixedly connected to the end of the wet treatment component (5) away from the flow channel (504). A filter section (3) is fixedly connected to the end of the fan (506) away from the wet treatment component (5). A filter screen (301) is installed in the middle section inside the filter section (3). A recovery section (8) is fixedly connected to the end of the filter section (3) away from the fan (506).
5. The high efficiency wet filtration module for mine dust removal fans according to claim 4, characterized in that, The recycling section (8) is provided with a bend, and the inner wall of the bend is provided with a guide groove (801). The recycling section (8) extends vertically upward with an air outlet (803). The guide groove (801) extends from one end near the filter section (3) toward the water tank (9) with a collection pipe (802). The collection pipe (802) extends into the water tank (9).
6. The high efficiency wet filtration module for mine dust removal fans according to claim 5, characterized by, A water pump (10) is fixedly connected to the outer wall of the water tank (9). A water pipe (502) extends from the water pump (10). The water pipe (502) is threadedly connected to the water pump (10). The end of the first collection pipe (505) away from the wet treatment component (5) is threadedly connected to the outer wall of the water tank (9). The end of the second collection pipe (802) away from the recovery section (8) is threadedly connected to the outer wall of the water tank (9). An inlet (11) is provided on the outer wall of the water tank (9).