Dust removal device for coal mine safety production

Abstract

The utility model relates to the technical field of roadway dust removal, and discloses a dust removal device for coal mine safety production, which comprises a filter box, an air exhaust mechanism, a collection box, a bottom plate, a fine filter screen, a cleaning mechanism and an exhaust pipe box control panel. The dust removal device is simple in structure and high in creativity, dust in an area is efficiently removed by conducting multi-layer screening and settling on sucked dust, meanwhile, the cleaning assembly is arranged to clean the filter screen in the device, the service life of the device can be prolonged, manual cleaning of the filter screen can be avoided, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel dust removal technology, and more specifically, it relates to a dust removal device for safe production in coal mines. Background Technology

[0002] Currently, large amounts of dust are generated in various stages of coal mining, such as drilling, blasting, excavation, roof management, and coal loading and transportation. Dust is generally suspended in the air and can cause secondary explosions when it reaches a certain concentration or is affected by shock waves, posing serious safety hazards. Different mines have different coal and rock geological conditions, mining methods, mining scale, and degree of mechanization, resulting in varying dust generation intensity and diffusion rates. Therefore, in order to ensure the life safety and occupational health of coal mine workers, coal mines use a series of dust suppression equipment, including dry dust removal or wet dust removal. However, wet dust removal consumes a large amount of water resources, and existing devices cannot achieve water recycling during the spraying dust removal process, which easily leads to water waste.

[0003] Roadways, which are various passages drilled between the surface and the ore body, serve for ventilation, drainage, pedestrian access, and other necessary preparatory works for new excavations in preparation for ore extraction. During coal mining, roadways generate significant dust, posing a health hazard to workers, affecting machine operation, and creating a high risk of coal dust explosions due to high temperatures. Wet dust collection systems can easily lead to slippery, waterlogged roadways, hindering various operations. Dry dust collection systems typically use fans to extract dust from the area; however, the extracted dust needs to be filtered and collected, and these filters are prone to clogging, affecting extraction efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the existing technology, this utility model provides a dust removal device for safe production in coal mines. By performing multi-level screening and settling of the sucked dust, it can efficiently remove dust in the area. At the same time, a cleaning component is set up to clean the filter screen inside the device, which can increase the service life of the device and avoid manual cleaning of the filter screen, saving time and effort.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dust removal device for safe production in coal mines, including a filter box, an air extraction mechanism at the bottom of one side of the filter box, a collection box at the bottom of the filter box, and a bottom plate at the bottom of the collection box; the filter box includes a box body and a box cover, a fine filter screen and a cleaning mechanism at the top of the box body, the cleaning mechanism being located below the fine filter screen; and an exhaust pipe at the top of the box cover.

[0006] The air extraction mechanism includes an exhaust fan and an exhaust pipe, with a primary filter assembly located between the exhaust fan and the exhaust pipe.

[0007] The cleaning mechanism includes multiple rotating rollers arranged in parallel, each with bristles on its outer side wall and a motor at one end of the shaft of each rotating roller;

[0008] The outer wall of the enclosure is equipped with a control panel, and the motor and exhaust fan are electrically connected to the control panel.

[0009] Furthermore, the box is equipped with a water spray pipe that runs around the inner wall of the box. A water tank is located on the top of the bottom plate. The water spray pipe and the water tank are connected by a flexible hose. A water pump connected to the flexible hose is located inside the water tank and is electrically connected to the control panel.

[0010] Furthermore, the water spray pipe is equipped with multiple atomizing nozzles, which are arranged at equal intervals along the water spray pipe.

[0011] Furthermore, the primary filtration assembly includes a filter tube and a dust guide tube connected together. The filter tube is connected to an exhaust fan, and the dust guide tube is connected to an exhaust pipe. A coarse filter screen is provided at one end of the filter tube near the exhaust fan, and a collection box connected to the inside of the filter tube is provided at the bottom of the filter tube.

[0012] Furthermore, the extraction pipe is made of a retractable flexible plastic tube.

[0013] Furthermore, a secondary filter assembly is provided inside the housing. The secondary filter assembly is located between the water spray pipe and the rotating roller. The secondary filter assembly includes multiple filter plates stacked on top of each other. Each filter plate has multiple perforations passing through it in the thickness direction, and the diameter of the perforations decreases from top to bottom.

[0014] Furthermore, the bottom of the base plate is equipped with multiple casters, and each caster has a brake pad.

[0015] In summary, this utility model has the following beneficial effects:

[0016] (1) A primary filter assembly is set in the air extraction mechanism to effectively prevent large dust particles from entering the device. Then a secondary filter assembly is set. When the dust gas passes through the filter plate from bottom to top, the multi-layer filter plate can effectively block most of the dust because the aperture of the perforation below the filter plate is small. The remaining small amount of dust gas that passes through the filter plate is then filtered by a fine filter screen and discharged from the device. Through multi-layer filtration, the dust gas in the area is efficiently removed.

[0017] (2) A water spray pipe is installed inside the box. Water is drawn from the water tank by a water pump and then sprayed out through the atomizing nozzle on the water spray pipe. The sprayed water can combine with the dust inside the box and settle directly into the collection box, further reducing the amount of dust gas passing through the secondary filter components.

[0018] (3) A cleaning mechanism is set up to clean the dust attached to the fine filter screen, so as to avoid clogging of the fine filter screen and affect the dust removal efficiency.

[0019] (4) When using this device for dust removal, the dust gas passes through a coarse filter screen, liquid sedimentation sprayed from an atomizing nozzle, multi-layer filter plate screening, and fine filter screen in sequence. The coarse filter screen is used to screen out large particles in the dust gas. Large particles are not easy to adhere to the coarse filter screen and cause blockage. When the dust gas passes through the fine filter screen, it has already undergone screening and sedimentation. At this time, the dust content in the dust gas is low, reducing the dust adhering to the fine filter screen. Then, the cleaning mechanism cleans the dust adhering to the fine filter screen in real time. The fine filter screen can be cleaned without disassembling for a long time, which greatly increases the efficiency of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a dust removal device for safe production in coal mines, as described in this utility model embodiment.

[0021] Figure 2 This is a schematic diagram showing the disassembled body and cover of a dust removal device for safe production in coal mines, according to an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the top of the casing of a dust removal device for safe production in coal mines, as described in this utility model embodiment.

[0023] Figure 4 This is a structural schematic diagram of the front view of the box in an embodiment of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the secondary filter component in an embodiment of this utility model;

[0025] Figure 6 This is a structural schematic diagram of the water tank in an embodiment of this utility model;

[0026] In the diagram: 1. Filter box; 2. Air extraction mechanism; 3. Collection box; 4. Base plate; 5. Box body; 6. Box cover; 7. Fine filter screen; 8. Cleaning mechanism; 9. Exhaust pipe; 10. Exhaust fan; 11. Air extraction pipe; 12. Primary filter assembly; 13. Rotating roller; 14. Brush bristles; 15. Control panel; 16. Water spray pipe; 17. Water tank; 18. Hose; 19. Water pump; 20. Atomizing nozzle; 21. Filter tube; 22. Dust guide tube; 23. Coarse filter screen; 24. Collection box; 25. Secondary filter assembly; 26. Filter plate; 27. Perforation; 28. Caster wheel; 29. ​​Brake pad. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0028] Example: A dust removal device for safe production in coal mines, such as... Figures 1 to 6As shown, the system includes a filter box 1, an air extraction mechanism 2 installed at the bottom of one side of the filter box 1, a collection box 3 integrally installed at the bottom of the filter box 1, and a base plate 4 fixedly installed at the bottom of the collection box 3; the filter box 1 includes a box body 5 and a box cover 6, a fine filter screen 7 and a cleaning mechanism 8 are installed at the top inside the box body 5, and the cleaning mechanism is located below the fine filter screen 7; an exhaust pipe 9 is installed at the top of the box cover 6;

[0029] The exhaust mechanism 2 includes an exhaust fan 10 and an exhaust pipe 11, and a primary filter assembly 12 is installed between the exhaust fan 10 and the exhaust pipe 11.

[0030] The cleaning mechanism 8 includes multiple rotating rollers 13 arranged in parallel, each rotating roller 13 having bristles 14 installed on its outer side wall, and each rotating roller 13 having a motor installed at one end of its shaft.

[0031] The outer wall of the housing 5 is equipped with a control panel 15. The motor and the exhaust fan 10 are electrically connected to the control panel 15. The motor and the exhaust fan 10 can be controlled to start and stop by operating the control panel 15.

[0032] As a preferred embodiment, a water spray pipe 16 is installed inside the housing 5, and the water spray pipe 16 is arranged around the inner side wall of the housing 5. A water tank 17 is installed on the top of the bottom plate 4. The water spray pipe 16 and the water tank 17 are connected by a flexible hose 18. A water pump 19 connected to the flexible hose 18 is installed inside the water tank 17. The water pump 19 is electrically connected to the control panel 15. The start and stop of the water pump 19 can be controlled by operating the control panel 15.

[0033] As a preferred embodiment, the water spray pipe 16 is equipped with a plurality of atomizing nozzles 20, which are equidistantly spaced along the water spray pipe 16.

[0034] By adopting the above technical solution, when performing dust removal, the water pump is turned on through the control panel 15, and the atomizing nozzle 20 sprays water mist, which combines with the dust in the dust gas entering the chamber 5 and settles, thereby achieving the purpose of dust removal.

[0035] As a preferred embodiment, the primary filtration assembly 12 includes a filter tube 21 and a dust guide tube 22 connected together. The filter tube 21 is connected to the exhaust fan, and the dust guide tube 22 is connected to the exhaust pipe 11. A coarse filter screen 23 is installed at one end of the filter tube 21 near the exhaust fan 10, and a collection box 24 connected to the bottom of the filter tube 21 is provided.

[0036] By adopting the above technical solution, when the exhaust fan 10 is working, the dusty gas is filtered out by the coarse filter 23 to remove large particles, and the filtered large particles are collected by the collection box 24.

[0037] As a preferred embodiment, the air extraction pipe 11 is a telescopic flexible hose 18 made of plastic.

[0038] By adopting the above technical solution, the orientation and position of the exhaust pipe 11 can be freely adjusted, allowing for flexible use and improving the efficiency of the device.

[0039] As a preferred embodiment, a secondary filter assembly 25 is installed inside the housing 5. The secondary filter assembly 25 is located between the water spray pipe 16 and the rotating roller 13. The secondary filter assembly 25 includes multiple filter plates 26, which are stacked. Each filter plate 26 has multiple through holes 27 that pass through the thickness direction of the filter plate 26. The diameter of the through holes 27 decreases from top to bottom.

[0040] By adopting the above technical solution, when the dust gas passes through the filter plate 26 step by step from bottom to top, the multi-layer filter plate 26 can effectively block most of the dust because the pore size below the perforation 27 of the filter plate 26 is small.

[0041] As a preferred embodiment, the bottom of the base plate 4 is equipped with a plurality of casters 28, and the casters 28 are equipped with brake pads 29.

[0042] By adopting the above technical solution, the device can be easily moved and used.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A dust removal device for coal mine safety production, characterized in that, The utility model provides a filter box (1), the bottom end of one side of filter box (1) is equipped with air extraction mechanism (2), the bottom of filter box (1) is equipped with collection box (3), the bottom of collection box (3) is equipped with bottom plate (4), filter box (1) includes box (5) and lid (6), the top end in box (5) is equipped with fine filter screen (7) and cleaning mechanism (8), and cleaning mechanism is located the below of fine filter screen (7), the top of lid (6) is equipped with exhaust pipe (9), Air extraction mechanism (2) includes extraction fan (10) and air extraction pipe (11), and is equipped with primary filter assembly (12) between extraction fan (10) and air extraction pipe (11), Cleaning mechanism (8) includes a plurality of parallelly arranged rotating rollers (13), the outer lateral wall of each rotating roller (13) is equipped with brush (14), and one end of the rotating shaft of each rotating roller (13) is equipped with motor, The outer lateral wall of box (5) is equipped with control panel (15), and the motor and extraction fan (10) are electrically connected with control panel (15).

2. The coal mine safety production dust removal device according to claim 1, characterized in that, The inside of box (5) is equipped with water spraying pipe (16), the inside of box (5) is equipped with water spraying pipe (16) and is surrounded along the inside lateral wall, the top of bottom plate (4) is equipped with water tank (17), water spraying pipe (16) and water tank (17) are communicated through hose (18), the inside of water tank (17) is equipped with water pump (19) communicated with hose (18), and water pump (19) is electrically connected with control panel (15).

3. The coal mine safety production dust removal device according to claim 2, characterized in that, Water spraying pipe (16) is equipped with a plurality of atomizing nozzles (20), and a plurality of atomizing nozzles (20) are equidistantly arranged along water spraying pipe (16).

4. The coal mine safety production dust removal device according to claim 1, characterized in that, Primary filter assembly (12) includes filter pipe (21) and dust guide pipe (22) connected, filter pipe (21) is communicated with extraction fan, dust guide pipe (22) is communicated with air extraction pipe (11), one end of filter pipe (21) close to extraction fan (10) is equipped with coarse filter screen (23) in filter pipe (21), and the bottom of filter pipe (21) is equipped with collection box (24) communicated with filter pipe (21) in filter pipe (21).

5. The coal mine safety production dust removal device according to claim 1, characterized in that, Air extraction pipe (11) adopts telescopic hose (18) of plastic material.

6. The coal mine safety production dust removal device according to claim 1, characterized in that, The inside of box (5) is equipped with secondary filter assembly (25), and secondary filter assembly (25) is located between water spraying pipe (16) and rotating roller (13), and secondary filter assembly (25) includes a plurality of filter plates (26), a plurality of filter plates (26) are stacked, a plurality of perforations (27) are arranged through the thickness direction of filter plate (26), and the aperture of perforation (27) decreases from top to bottom.

7. The coal mine safety production dust removal device according to claim 1, characterized in that, The bottom of bottom plate (4) is equipped with a plurality of universal wheels (28), and universal wheel (28) is equipped with brake pad (29).

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