Dust removal device for air return working face

Abstract

The utility model relates to the technical field of comprehensive dust prevention of mines, and discloses a dust removal device for an air return working face. The dust removal device for the air return working face comprises an air outlet plate, three control valves are fixedly installed on one side of the air outlet plate, an air suction pipe is fixedly installed on one side of each control valve, an air suction opening is fixedly formed in the bottom of each air suction pipe, and an electric annular rotating shaft is movably connected to the bottom of each air suction opening; and a filtering barrel is fixedly mounted at the bottom of the electric annular rotating shaft. Through the operation of the sucking pump, the sucking opening can generate suction force, raised dust generated on the working face is sucked in after larger particles are filtered out through the filtering barrel, and finally the raised dust is discharged through the air outlet pipe, and after the filtering barrel is blocked by dust, the filtering barrel can be driven to rotate through the operation of the electric annular rotating shaft, so that the working face is protected. Therefore, impurities blocked in the middle of the filter barrel can be thrown out through centrifugal force, and the practicability and the anti-blocking effect of the dust removal device for the return air working face are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, and particularly relates to a dust removal device for a return air working face. Background Art

[0002] In recent years, with the continuous improvement of the intelligent level of coal mines, the coal mining speed has also been greatly increased. However, the problem of dust pollution in the coal mining face has become increasingly prominent. The high-concentration dust in the fully mechanized mining face not only threatens the physical and mental health of workers and the safe production of the mine, but also affects the reliability of signal acquisition and transmission of various monitoring systems, seriously restricting the development of intelligent coal mining in China and urgently needing effective treatment.

[0003] The existing Chinese utility model patent with the reference publication number of CN210637073U discloses a comprehensive dust removal complete set device for a mine roadway driving working face, belonging to the technical field of mine comprehensive dust prevention. The box body of the foam dust suppression device is fixed on the roadway driving machine, a foaming agent feed pipe is arranged on the box body, a foam generator is installed on the side of the box body, a compressed air inlet interface and a foam discharge pipe are installed on the foam generator, and a plurality of foam spray nozzles are installed on the spray head support; the pneumatic dust removal and purification device is fixed at the position on the return air side of the tail of the roadway driving machine. A pneumatic motor is installed in the wet pneumatic dust removal device, an impeller is installed on the pneumatic motor, a compressed air inlet pipe is connected to the pneumatic motor, and three water mist spray nozzles are arranged in total in front of the impeller at the air inlet end and on the circumference at the air outlet end of the wet pneumatic dust removal device. The utility model suppresses dust, reduces dust and purifies dust from three angles, namely the coal dust generation point at the cutting head of the roadway driving machine, the dust raising point at the coal falling of the working face, the coal scraping and coal transporting points of the scraper of the roadway driving machine, etc. After on-site detection, the comprehensive dust removal rate reaches 85.8%.

[0004] The dust removal effect of the existing dust removal device for the return air working face is not good, which is easy to cause large-area dust raising on the working face, thus affecting the operation of operators and the health of operators. Moreover, the air extraction port of the existing air extraction type dust removal device is easily blocked by dust, resulting in a decrease in the dust removal amount. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a dust removal device for a return air working face, which has the advantages of good dust removal effect and good anti-blocking effect, and solves the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solutions: A dust removal device for a return air working face, comprising:

[0009] Air outlet plate, on one side of the air outlet plate, three control valves are fixedly installed. On one side of the control valve, an air extraction pipe is fixedly installed. At the bottom of the air extraction pipe, an air extraction port is fixedly installed. At the bottom of the air extraction port, an electric ring-shaped rotating shaft is movably connected. At the bottom of the electric ring-shaped rotating shaft, a filter barrel is fixedly installed. At the top of the air extraction pipe, a water inlet plate is fixedly installed. On one side of the top of the water inlet plate, a delivery pipe is fixedly installed. On one side of the air outlet plate, a water outlet plate is fixedly installed. At the bottom of the water outlet plate, a water outlet is fixedly installed. At the bottom of the water outlet, a atomizing nozzle is fixedly installed. On one side of the bottom of the water outlet plate, a water distribution box is fixedly installed. On one side of the water distribution box, a water outlet pipe is fixedly installed. At the bottom of the water outlet pipe, a extraction pump is fixedly installed.

[0010] As a preferred technical solution of the present utility model, in the middle of the top of the air outlet plate, a connecting pipe is fixedly installed. The connecting pipe is trapezoidal in shape and is a structure for connection.

[0011] As a preferred technical solution of the present utility model, on the top of the connecting pipe, an air extraction pump is fixedly installed. The air extraction pump is a structure for air extraction.

[0012] As a preferred technical solution of the present utility model, on the top of the air extraction pump, an air outlet pipe is fixedly installed. The air outlet pipe is a structure for air outlet.

[0013] As a preferred technical solution of the present utility model, on one side of the delivery pipe, a water distribution pipe is fixedly installed. On one side of the water distribution pipe, an extraction pipe is fixedly installed. The extraction pipe is a structure for extraction.

[0014] As a preferred technical solution of the present utility model, at the bottom of the extraction pipe, a water extraction pump is fixedly installed. At the bottom of the water extraction pump, a water tank is fixedly installed. The water tank is a structure for storing water.

[0015] As a preferred technical solution of the present utility model, on one side of the top of the water tank, a sealing cover is fixedly installed. The sealing cover is a structure for sealing the water filling port.

[0016] Compared with the prior art, the present utility model provides a dust removal device for the return air working face, which has the following beneficial effects:

[0017] 1. Through the operation of the air extraction pump of the present utility model, suction can be generated at the air extraction port, so that the dust generated at the working face can be sucked in after filtering out larger particles through the filter barrel, and finally discharged through the air outlet pipe. When the filter barrel is blocked by dust, through the operation of the electric ring-shaped rotating shaft, the filter barrel can be driven to rotate, so that the impurities blocked in the middle of the filter barrel can be thrown out by centrifugal force, improving the practicability and anti-blocking effect of the dust removal device for the return air working face.

[0018] 2. By operating the water pump and closing the control valve, the present utility model can pump the water inside the water tank into the inside of the water inlet plate, and send the water into the inside of the air extraction pipe through the water inlet plate, so that the dust inside the air extraction pipe can be cleaned by the water and finally discharged from the inside of the filter barrel. Moreover, the filter barrel can be cleaned reversely, improving the convenience of the dust removal device for the return air working face. By operating the extraction pump, the water can be sent into the inside of the water outlet plate and finally sprayed out from the inside of the atomizing nozzle, thus improving the dust removal effect of the dust removal device for the return air working face. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the air outlet plate of the present utility model;

[0021] Figure 3 is a schematic diagram of the air extraction pipe of the present utility model;

[0022] Figure 4 is a schematic diagram of the water outlet plate of the present utility model;

[0023] Figure 5 is a schematic diagram of the water distribution pipe of the present utility model.

[0024] Wherein: 1. Air outlet plate; 11. Control valve; 12. Connecting pipe; 13. Air extraction pump; 14. Air outlet pipe; 2. Air extraction pipe; 21. Air extraction port; 22. Electric ring-shaped rotating shaft; 23. Filter barrel; 24. Water inlet plate; 25. Delivery pipe; 3. Water outlet plate; 31. Water outlet; 32. Atomizing nozzle; 33. Water distribution box; 34. Water outlet pipe; 35. Extraction pump; 4. Water distribution pipe; 41. Extraction pipe; 42. Water pump; 43. Water tank; 44. Sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0026] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Please refer to Figure 1 - Figure 5 In this embodiment, a dust removal device for a return air working face includes: an air outlet plate 1. Three control valves 11 are fixedly installed on one side of the air outlet plate 1. A connecting pipe 12 is fixedly installed in the middle of the top of the air outlet plate 1, and the connecting pipe 12 is trapezoidal in shape.

[0029] A suction pump 13 is fixedly installed at the top of the connecting pipe 12.

[0030] An air outlet pipe 14 is fixedly installed at the top of the suction pump 13.

[0031] Specifically, the suction pipe 2 can be opened or closed through the control valve 11. By operating the suction pump 13, the suction pump 13 can suck air through the air outlet plate 1 from the suction pipe 2, and send the dust out through the air outlet pipe 14, improving the practicability of the dust removal device for the return air working face.

[0032] A suction pipe 2 is fixedly installed on one side of the control valve 11. A suction port 21 is fixedly installed at the bottom of the suction pipe 2. An electric ring-shaped rotating shaft 22 is movably connected to the bottom of the suction port 21. A filter barrel 23 is fixedly installed at the bottom of the electric ring-shaped rotating shaft 22. An inlet water plate 24 is fixedly installed at the top of the suction pipe 2. A delivery pipe 25 is fixedly installed on one side of the top of the inlet water plate 24.

[0033] Specifically, the filter barrel 23 can intercept and filter large impurities in the dust entering the suction port 21, so that the dust in the working face can be sucked. When the filter barrel 23 needs to be cleaned, by operating the electric ring-shaped rotating shaft 22, the filter barrel 23 can be driven to rotate, and the dust in the filter barrel 23 can be thrown out by centrifugal force.

[0034] An outlet water plate 3 is fixedly installed on one side of the air outlet plate 1. An outlet 31 is fixedly installed at the bottom of the outlet water plate 3. An atomizing nozzle 32 is fixedly installed at the bottom of the outlet 31. A water distribution box 33 is fixedly installed on one side of the bottom of the outlet water plate 3. An outlet pipe 34 is fixedly installed on one side of the water distribution box 33. A pumping pump 35 is fixedly installed at the bottom of the outlet pipe 34.

[0035] Specifically, by operating the extraction pump 35, water can be pumped out and sent into the interior of the water distribution box 33 through the water outlet pipe 34. Through the water distribution box 33, water can be sent into the interiors of the two water outlet plates 3. Through the water outlet 31 at the bottom of the water outlet plate 3, water can be sent into the interior of the atomizing nozzle 32 and atomized and sprayed out.

[0036] A water distribution pipe 4 is fixedly installed on one side of the conveying pipe 25, and an extraction pipe 41 is fixedly installed on one side of the water distribution pipe 4.

[0037] An extraction pump 42 is fixedly installed at the bottom of the extraction pipe 41, and a water tank 43 is fixedly installed at the bottom of the extraction pump 42.

[0038] A sealing cover 44 is fixedly installed on one side of the top of the water tank 43.

[0039] Specifically, the water filling port can be sealed through the sealing cover 44. By operating the extraction pump 42, the water inside the water tank 43 can be pumped out and sent into the interior of the water distribution pipe 4 through the extraction pipe 41. Through the water distribution pipe 4, the water can be split and sent into the interior of the conveying pipe 25.

[0040] During use, first, water can be fed into the interior of the water tank 43 by opening the sealing cover 44. Through the operation of the air extraction pump 13, suction can be generated at the air extraction port 21, so that larger particles in the air can be intercepted by the filter barrel 23, avoiding the problem of pipeline blockage caused by larger particles entering the interior of the air extraction pipe 2, and improving the practicability and convenience of the dust removal device for the return air working face. When the filter barrel 23 is blocked, through the operation of the electric ring-shaped rotating shaft 22 at the bottom of the air extraction port 21, the filter barrel 23 can be rotated, so that the blocked dust inside the filter barrel 23 can be thrown out by the centrifugal force of rotation, thus achieving the effect of cleaning the filter barrel 23, improving the convenience of the dust removal device for the return air working face and the anti-blocking effect. At the same time, by closing the control valve 11 and operating the water extraction pump 42, the water inside the water tank 43 can be pumped out and sent into the interior of the water distribution pipe 4 through the extraction pipe 41. The water can be divided and sent into the interior of the conveying pipe 25 through the water distribution pipe 4. The water is sent into the interior of the air extraction pipe 2 from the water inlet plate 24 through the conveying pipe 25. After the dust inside the air extraction pipe 2 is washed by the water flow, the interior of the filter barrel 23 is reversely washed, so that the filter barrel 23 can be cleaned, and at the same time, the problem of blockage caused by dust accumulation inside the air extraction pipe 2 is avoided, improving the practicability and convenience of the dust removal device for the return air working face, and at the same time improving the anti-blocking effect of the dust removal device for the return air working face. Through the operation of the extraction pump 35, the water inside the water tank 43 can be pumped out and sent into the interior of the water distribution box 33 through the water outlet pipe 34. The water can be divided and sent into the interiors of the two water outlet plates 3 through the water distribution box 33. The water can be sent into the interior of the atomizing nozzle 32 through the water outlet 31 at the bottom of the water outlet plate 3. Finally, the water can be atomized and sprayed out through the atomizing nozzle 32, so as to perform dust removal treatment on the working face. Through the simultaneous operation of the atomizing nozzle 32 and the air extraction port 21, while extracting the flying dust, the large-particle flying dust can be covered by the atomized water, thus improving the dust removal effect of the dust removal device for the return air working face and the practicability of the dust removal device for the return air working face.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for a return air working surface, characterized in that: The return air working surface dust removal device comprises an air outlet plate (1), three control valves (11) are fixedly mounted on one side of the air outlet plate (1), an air extraction pipe (2) is fixedly mounted on one side of the control valve (11), an air extraction port (21) is fixedly mounted on the bottom of the air extraction pipe (2), an electric annular rotating shaft (22) is movably connected to the bottom of the air extraction port (21), a filter barrel (23) is fixedly mounted on the bottom of the electric annular rotating shaft (22), a water inlet plate (24) is fixedly mounted on the top of the air extraction pipe (2), and the air extraction port (21) is fixedly mounted on the bottom of the electric annular rotating shaft (22). A delivery pipe (25) is fixedly mounted on one side of the top of the water inlet plate (24); a water outlet plate (3) is fixedly mounted on one side of the air outlet plate (1); a water outlet (31) is fixedly mounted on the bottom of the water outlet plate (3); an atomizing nozzle (32) is fixedly mounted on the bottom of the water outlet (31); a water separation box (33) is fixedly mounted on one side of the bottom of the water outlet plate (3); a water outlet pipe (34) is fixedly mounted on one side of the water separation box (33); and an extraction pump (35) is fixedly mounted on the bottom of the water outlet pipe (34).

2. A dust removal device for return air working surface according to claim 1, characterized in that: A connecting pipe (12) is fixedly installed in the middle of the top of the air outlet plate (1), and the connecting pipe (12) is in a trapezoidal shape.

3. A dust removal device for return air working surface according to claim 2, characterized in that: An air pump (13) is fixedly mounted on the top of the connecting pipe (12).

4. A dust removal device for return air working surface according to claim 3, characterized in that: An air outlet pipe (14) is fixedly mounted on the top of the air pump (13).

5. The dust removal device for the return air working surface according to claim 1, characterized in that: A water distribution pipe (4) is fixedly mounted on one side of the delivery pipe (25), and an extraction pipe (41) is fixedly mounted on one side of the water distribution pipe (4).

6. A dust removal device for return air working surface according to claim 5, characterized in that: A water pump (42) is fixedly installed at the bottom of the extraction pipe (41), and a water tank (43) is fixedly installed at the bottom of the water pump (42).

7. A dust removal device for return air working surface according to claim 6, characterized in that: A sealing cover (44) is fixedly mounted on one side of the top of the water tank (43).

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