Mine hydrodynamic dust remover

Abstract

The invention discloses a mining hydrodynamic dust remover, relates to the technical field of industrial dust treatment, and solves the problem of cleaning dust on the surface of underground working equipment. The dust collection device comprises a dust collection head, a dome cylinder, a fan structure, a rotary sprayer and a water supply pipeline, the dust collection head communicates with the top of the dome cylinder, and the bottom of the dome cylinder communicates with a filter box; a fan structure is arranged in the dome cylinder, a rotary sprayer is arranged at the bottom end of the fan structure, and the rotary sprayer is communicated with a water supply pipeline; a plurality of rotary sprayer nozzles are arranged on the rotary sprayer; the rotary sprayer rotates to drive the fan structure through acting force generated by water mist sprayed by a rotary sprayer nozzle; a plurality of filter screens are arranged in the filter box in a staggered manner. The fan structure is driven through gravitational potential energy of water, the fan structure and the Venturi tube are matched for dust collection, dust is settled through the annular sprayer and the rotary sprayer, the service life of equipment is prolonged, the reliability of the equipment is improved, potential safety hazards are reduced, and energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial dust treatment, and specifically relates to a mine water-powered dust collector. Background Art

[0002] With the gradual improvement of the mechanization and automation levels and the continuous increase of the mining intensity in the coal mine underground, the resulting dust problem has become increasingly serious. In the actual underground working environment of the mine, when the coal mining uses the blasting mining method, the dust concentration can reach 300 - 500 mg / m 3 , when the coal mining uses the mechanical mining method, the dust concentration reaches 1000 - 3000 mg / m 3 , and when the fully mechanized mining is carried out, the dust concentration will reach 4000 - 8000 mg / m 3 . These high-concentration dusts will quickly cover the working equipment on the site. If not cleaned for a long time, these dusts will also enter the interior of the equipment, wear mechanical components, greatly reduce the service life and reliability of the equipment, and may also block the heat dissipation channels of the equipment, resulting in overheating of the equipment, triggering failures or even fires.

[0003] Therefore, it is necessary to regularly clean the surface of the underground working equipment, which can improve the service life and reliability of the equipment and reduce potential safety hazards. However, the usual coal mining equipment is very large, and it is very inconvenient to clean it completely by manpower, so it is necessary to use equipment similar to a vacuum cleaner to help with the cleaning. However, most of the current vacuuming equipment on the market is driven by electricity, and electric sparks may be generated during operation, which is likely to bring potential safety hazards in the underground environment. Therefore, it is an urgent problem to be solved to achieve convenient cleaning of the working equipment without using electricity. Summary of the Invention

[0004] In order to solve the problem of dust cleaning on the surface of the underground working equipment mentioned above, the present invention hereby provides a mine water-powered dust collector. The present invention is driven by the gravitational potential energy of water, is provided with a reverse fan mechanism and a Venturi tube to achieve dust suction, and at the same time uses an annular sprayer and a rotary sprayer to settle the inhaled dust, so as to achieve convenient cleaning of the coal mine underground working equipment without power supply, improve the service life and reliability of the equipment, reduce potential safety hazards, and reduce energy consumption.

[0005] The present invention proposes a hydraulic dust collector for mining, which specifically comprises a dust suction device and a filter box, wherein the dust suction device is arranged on the filter box and is connected to the filter box; the dust suction device comprises a dust suction head, a dome cylinder, a fan structure, a rotary sprayer and a water supply pipe, wherein the dust suction head is connected to the top of the dome cylinder, and the bottom of the dome cylinder is connected to the filter box; a fan structure is arranged in the dome cylinder, a rotary sprayer is arranged at the bottom of the fan structure, and the rotary sprayer is connected to the water supply pipe; a plurality of rotary sprayer nozzles are arranged on the rotary sprayer; the rotary sprayer rotates by the force generated by spraying water mist from the rotary sprayer nozzle, thereby driving the fan structure; the filter box comprises an L-shaped box body and a plurality of filter screens, wherein the plurality of filter screens are staggeredly arranged on two opposite wall surfaces in the L-shaped box body; an air outlet is arranged at the top of the L-shaped box body, and a sewage outlet and four wheels are arranged at the bottom.

[0006] Furthermore, the fan structure includes a main shaft, an upper fixed frame, an upper fan and a lower fixed frame, and the upper fixed frame and the lower fixed frame are fixedly arranged inside the dome cylinder; the upper end of the main shaft is rotatably connected to the upper fixed frame, and the lower end is connected to the rotary sprayer, and the rotary sprayer is rotatably connected to the lower fixed frame; an upper fan is arranged on the main shaft.

[0007] Furthermore, the fan structure also includes a lower fan and a gear structure, the lower fan is mounted on the main shaft and is rotationally connected to the main shaft; the gear structure is arranged on the lower fixed frame, and the rotary atomizer drives the lower fan to rotate through the gear structure, and the rotation direction of the lower fan is opposite to that of the upper fan.

[0008] Furthermore, the gear structure includes a lower bevel gear, an upper bevel gear and an intermediate reversing bevel gear, the lower bevel gear is arranged at the upper end of the rotary atomizer, the upper bevel gear is arranged at the lower end of the lower fan, and the intermediate reversing bevel gear is arranged on the lower fixed frame; the lower bevel gear, the intermediate reversing bevel gear and the upper bevel gear are meshed in sequence.

[0009] Furthermore, an annular sprayer is arranged outside the dome cylinder, and the annular sprayer is connected to the water supply pipeline; a plurality of annular sprayer nozzles are evenly arranged on the circumference of the annular sprayer, and the annular sprayer nozzles are connected to the inside of the dome cylinder.

[0010] Furthermore, the annular spray nozzle is arranged horizontally and points to the center of the annular spray.

[0011] Furthermore, a Venturi tube is arranged inside the dome cylinder at a position below the annular sprayer.

[0012] Furthermore, the rotary atomizer nozzle is arranged horizontally.

[0013] Furthermore, a baffle is provided inside the dome cylinder at a position below the air outlet.

[0014] A method of using the above-mentioned mine water-powered dust collector includes the following steps:

[0015] Start the water supply system, supply water to the rotary sprayer and the annular sprayer through the water supply pipeline to form a mist curtain. The rotary sprayer rotates and sprays under the action of water pressure, driving the upper fan and the lower fan to rotate, thereby generating suction to suck dust. The air containing dust enters the dome cylinder, and the dust is wrapped by the atomized droplets and settles to the bottom of the dome cylinder. When the preliminarily purified air passes through the filter screen and the baffle, the dust is further intercepted. The purified air is discharged from the air outlet.

[0016] The beneficial effects of the mine water-powered dust collector described in the present invention are as follows:

[0017] (1) The mine water-powered dust collector described in the present invention solves the problem of dust cleaning on the surface of underground working equipment. By hydraulically driving the rotary sprayer, the rotary sprayer drives the fan structure to rotate, thereby generating suction to suck the dust into the dust collector, realizing convenient cleaning of the underground coal mine working equipment without power supply, improving the service life and reliability of the equipment, reducing potential safety hazards, and reducing energy consumption.

[0018] (2) The mine water-powered dust collector described in the present invention sprays water mist into the dust collector through the set rotary sprayer and annular sprayer, and coats the dust with the water mist to achieve the function of dust reduction. At the same time, a number of filter screens are arranged in the L-shaped box body to further purify the air through the filter screens, improving the air purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0020] In the drawings:

[0021] Figure 1 is a three-dimensional structure schematic diagram of the mine water-powered dust collector described in the present invention;

[0022] Figure 2 is an axonometric view of the soot absorption unit of the mine water-powered dust collector described in the present invention;

[0023] Figure 3 is a three-dimensional structure diagram of the soot absorption unit of the mine water-powered dust collector described in the present invention;

[0024] Figure 4 is a cross-sectional view of the soot absorption unit of the mine water-powered dust collector described in the present invention;

[0025] Wherein: 1 - dust suction port; 2 - dust suction hose; 3 - dome cylinder; 4 - main shaft; 5 - upper fixing frame; 6 - upper fan; 7 - lower fan; 8 - lower fixing frame; 9 - rotary sprayer; 10 - water supply pipe; 11 - annular sprayer; 12 - Venturi tube; 13 - L-shaped box body; 14 - main valve; 15 - sewage outlet; 16 - inclined bottom plate; 17 - filter screen; 18 - baffle; 19 - air outlet; 20 - wheels; 21 - sewage valve; 22 - rotary sprayer nozzle; 23 - lower bevel gear; 24 - upper bevel gear; 25 - upper bearing; 26 - upper fixing frame bearing; 27 - lower fan bearing; 28 - intermediate reversing bevel gear; 29 - intermediate bevel gear bearing; 30 - lower bearing; 31 - sprayer bearing; 32 - water supply connecting pipe; 33 - annular sprayer nozzle. Detailed implementation manners

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Detailed implementation manner one: Refer to Figures 1-4Specifically describe this embodiment. A mine water-powered dust collector described in this embodiment specifically includes a dust suction device and a filter box. The dust suction device is arranged on the filter box and communicated with the filter box; the dust suction device includes a dust suction head, a dome cylinder 3, a fan structure, a rotary atomizer 9 and a water supply pipe 10. The dust suction head includes a dust suction port 1 and a dust suction hose 2. One end of the dust suction hose 2 is communicated with the dust suction port 1 to ensure good sealing at the connection part without air leakage; the other end of the dust suction hose 2 is communicated with the top of the dome cylinder 3; the bottom of the dome cylinder 3 is communicated with the filter box to make the dust suction path unobstructed; the bottom of the dome cylinder 3 and the filter box are fixed by welding to ensure firm welding; a fan structure is arranged inside the dome cylinder 3, and a rotary atomizer 9 is arranged at the bottom end of the fan structure. The water supply pipe 10 is arranged on the filter box and passes through the wall of the dome cylinder 3 to be communicated with the rotary atomizer 9. A sprayer bearing 31 is arranged at the connection position to ensure that the rotary atomizer 9 can rotate freely; the rotary atomizer 9 includes four cantilevers, and the four cantilevers are evenly distributed at an interval of 90°. Rotary atomizer nozzles 22 are arranged on the cantilevers, and the rotary atomizer nozzles 22 are arranged horizontally; the caliber of the rotary atomizer nozzles 22 is 1 mm, and the horizontal distance from the main shaft 4 is 90 mm; the rotary atomizer 9 rotates by the acting force generated by spraying water mist through the rotary atomizer nozzles 22, and then drives the fan structure, thereby generating suction force.

[0031] The filter box includes an L-shaped box body 13 and several filter meshes 17. The dome cylinder 3 is arranged above the lower side of the L-shaped box body 13; several filter meshes 17 are staggered on two opposite inner walls of the L-shaped box body 13, and the filter meshes 17 are inclined; an air outlet 19 is arranged at the top of the L-shaped box body 13, and a baffle 18 is arranged below the air outlet 19. Several filter meshes 17 and the baffle 18 are staggered to form a serpentine flow channel inside the L-shaped box body 13; a sewage discharge port 15, an inclined bottom plate 16 and four wheels 20 are arranged at the bottom of the L-shaped box body 13. The sewage discharge port 15 is arranged at the lowest point of the inclined bottom plate 16 to facilitate the discharge of sewage; a main valve 14 is arranged on the water supply pipe 10, and a sewage discharge valve 21 is arranged on the sewage discharge port 15.

[0032] The fan structure includes a main shaft 4, an upper fixing frame 5, an upper fan 6 and a lower fixing frame 8. The upper fixing frame 5 and the lower fixing frame 8 are fixedly arranged inside the dome cylinder 3 through three cross bars, and the connection method is welding; the upper end of the main shaft 4 is rotationally connected with the upper fixing frame 5 through an upper fixing frame bearing 26, and the lower end is connected with the rotary atomizer 9. The rotary atomizer 9 is rotationally connected with the lower fixing frame 8 through a lower bearing 30; an upper fan 6 is arranged on the main shaft 4, so that the rotary atomizer 9 can drive the upper fan 6 to rotate through the main shaft 4.

[0033] The fan structure further includes a lower fan 7 and a gear structure. The lower fan 7 is sleeved on the main shaft 4 and is rotationally connected to the main shaft 4 through a lower fan bearing 27. The gear structure is arranged on the lower fixing frame 8. The rotary atomizer 9 drives the lower fan 7 to rotate through the gear structure. The rotation direction of the lower fan 7 is opposite to that of the upper fan 6. Seven fan blades are provided on both the upper fan 6 and the lower fan 7, and the installation directions of the fan blades of the upper fan 6 and the lower fan 7 are opposite, as Figure 1 shown.

[0034] The gear structure includes a lower bevel gear 23, an upper bevel gear 24 and an intermediate reversing bevel gear 28. The lower bevel gear 23 is arranged at the upper end of the rotary atomizer 9. The upper bevel gear 24 is arranged at the lower end of the lower fan 7 and is rotationally connected to the lower fixing frame 8 through an upper bearing 25. There is a gap between the upper bevel gear 24 and the main shaft 4. The intermediate reversing bevel gear 28 is arranged on the lower fixing frame 8. The lower bevel gear 23, the intermediate reversing bevel gear 28 and the upper bevel gear 24 are meshed in sequence.

[0035] An annular atomizer 11 is arranged outside the dome cylinder 3. The annular atomizer 11 is communicated with a water supply pipeline 10 through a water supply connecting pipe 32. Six annular atomizer nozzles 33 are uniformly arranged on the circumference of the annular atomizer 11. The annular atomizer nozzles 33 are uniformly distributed at an interval of 60°. The annular atomizer nozzles 33 penetrate through the cylinder wall of the dome cylinder 3 and are communicated with the inside of the dome cylinder 3. The installation diameter of the annular atomizer nozzle 33 is 1 mm, and the horizontal distance from the main shaft 4 is 145 mm.

[0036] The annular atomizer nozzle 33 is horizontally arranged and points to the center of the annular atomizer 11.

[0037] A Venturi tube 12 is arranged inside the dome cylinder 3 at a position corresponding to the lower part of the annular atomizer 11. The wind speed can be effectively increased through the Venturi tube 12.

[0038] A usage method of the mine water-powered dust collector adopting the above is as follows:

[0039] During use, start the water supply system, open the main valve 13 to start water supply, and make the water flow to the rotary atomizer 9 and the annular atomizer 11 respectively through the water supply pipeline 10. The rotary atomizer 9 starts to rotate and spray under the action of water pressure. Since it is fixedly connected to the lower bevel gear 23, the lower bevel gear 23 rotates accordingly. Through the reversing action of the intermediate reversing bevel gear 28, the upper bevel gear 24 is driven to rotate in the reverse direction, so that the lower fan 7 connected to the upper bevel gear 24 rotates in the reverse direction, while the upper fan 6 rotates in the forward direction driven by the main shaft 4, forming a reverse fan mechanism to generate suction and realize dust collection. At the same time, the Venturi air duct 12 inside the dome cylinder 3 further increases the wind speed and enhances the dust collection effect.

[0040] Under the action of suction, the air containing dust enters the dome cylinder 3 through the dust suction port 1 and the dust suction hose 2. First, it passes through the fog curtain formed by the rotary sprayer 9 and the annular sprayer 11. At this time, the vast majority of the dust in the air is wrapped and settled by the atomized droplets and falls onto the inclined bottom plate 16. Then the air enters the square box body 13. When passing through the filter screen 17 and the baffle 18, the dust is further filtered and intercepted. Finally, the purified air is discharged from the air outlet 19. The sewage generated during the whole process finally flows along the inclined bottom plate 16 to the sewage outlet 15. When the sewage valve 21 is opened, the sewage is discharged.

[0041] Summarizing the above embodiments, a mine water-powered dust collector described in the present invention solves the problem of dust cleaning on the surface of underground working equipment. By hydraulically driving the rotary sprayer 9, the rotary sprayer 9 drives the fan structure to rotate, thereby generating suction to suck the dust into the dust collector, enabling convenient cleaning of underground coal mine working equipment without power supply, improving the service life and reliability of the equipment, reducing potential safety hazards, and reducing energy consumption. A mine water-powered dust collector described in the present invention sprays water mist into the dust collector through the provided rotary sprayer 9 and annular sprayer 11, and the dust is coated by the water mist to achieve the function of dust reduction; at the same time, a number of filter screens 17 are provided in the L-shaped box body 13, and the air is further purified through the filter screens 17 to improve the air purification effect.

[0042] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the invention. It can also be a reasonable combination of the features described in the above embodiments. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydraulic dust collector for mining, characterized by: The invention comprises a dust collecting device and a filter box, wherein the dust collecting device is arranged on the filter box and is connected to the filter box; the dust collecting device comprises a dust collecting head, a dome cylinder (3), a fan structure, a rotary atomizer (9) and a water supply pipe (10); the dust collecting head is connected to the top of the dome cylinder (3), and the bottom of the dome cylinder (3) is connected to the filter box; the fan structure is arranged inside the dome cylinder (3), and the rotary atomizer (9) is arranged at the bottom end of the fan structure; the rotary atomizer (9) is connected to the water supply pipe (10); the rotary atomizer (9) is provided with a plurality of rotary spray nozzles (22); the rotary sprayer (9) rotates by the force generated by spraying water mist from the rotary spray nozzles (22), thereby driving the fan structure; the filter box comprises an L-shaped box body (13) and a plurality of filter screens (17), and the plurality of filter screens (17) are staggeredly arranged on two opposite wall surfaces in the L-shaped box body (13); the top of the L-shaped box body (13) is provided with an air outlet (19), and the bottom is provided with a sewage outlet (15) and four wheels (20).

2. The mining hydraulic dust collector according to claim 1 is characterized in that: The fan structure comprises a main shaft (4), an upper fixing frame (5), an upper fan (6) and a lower fixing frame (8); the upper fixing frame (5) and the lower fixing frame (8) are fixedly arranged inside the dome cylinder (3); the upper end of the main shaft (4) is rotatably connected to the upper fixing frame (5), the lower end is connected to the rotary atomizer (9), and the rotary atomizer (9) is rotatably connected to the lower fixing frame (8); the upper fan (6) is arranged on the main shaft (4).

3. The mining hydraulic dust collector according to claim 2 is characterized in that: The fan structure also includes a lower fan (7) and a gear structure. The lower fan (7) is mounted on the main shaft (4) and is rotationally connected to the main shaft (4). The gear structure is arranged on the lower fixed frame (8). The rotary atomizer (9) drives the lower fan (7) to rotate via the gear structure. The rotation direction of the lower fan (7) is opposite to that of the upper fan (6).

4. The mining hydraulic dust collector according to claim 3 is characterized in that: The gear structure comprises a lower bevel gear (23), an upper bevel gear (24) and an intermediate reversing bevel gear (28); the lower bevel gear (23) is arranged at the upper end of the rotary atomizer (9), the upper bevel gear (24) is arranged at the lower end of the lower fan (7), and the intermediate reversing bevel gear (28) is arranged on the lower fixed frame (8); the lower bevel gear (23), the intermediate reversing bevel gear (28) and the upper bevel gear (24) are meshed in sequence.

5. The mining hydraulic dust collector according to claim 2 is characterized in that: An annular sprayer (11) is arranged outside the dome cylinder (3), and the annular sprayer (11) is connected to the water supply pipe (10); a plurality of annular sprayer nozzles (33) are evenly arranged on the circumference of the annular sprayer (11), and the annular sprayer nozzles (33) are connected to the inside of the dome cylinder (3).

6. The mining hydraulic dust collector according to claim 5 is characterized in that: The annular spray nozzle (33) is arranged horizontally and points to the center of the annular spray (11).

7. The mining hydraulic dust collector according to claim 1 is characterized in that: A venturi tube (12) is arranged inside the dome cylinder (3) at a position corresponding to the position below the annular sprayer (11).

8. The mining hydraulic dust collector according to claim 1 is characterized in that: The rotary atomizer nozzle (22) is arranged horizontally.

9. The mining hydraulic dust collector according to claim 5, characterized in that: A baffle (18) is provided inside the dome cylinder (3) at a position below the air outlet (19).

10. A method for using the mining hydraulic dust collector according to claim 9, characterized in that: The following steps are involved: The water supply system is started, and water is supplied to the rotary sprayer (9) and the annular sprayer (11) through the water supply pipe (10) to form a mist curtain. The rotary sprayer (9) rotates and sprays under the pressure of water and drives the upper fan (6) and the lower fan (7) to rotate, thereby generating suction to absorb dust. The air containing dust enters the dome cylinder (3), and the dust is wrapped by the atomized droplets and settles to the bottom of the dome cylinder (3). When the initially purified air passes through the filter screen (17) and the baffle (18), the dust is further intercepted. The purified air is discharged from the air outlet (19).

Images