Underground coal mine intelligent drainage device and operation method thereof

Abstract

The invention belongs to the technical field of mine drainage, and particularly relates to a coal mine underground intelligent drainage device and an operation method thereof. Comprising a first mounting base, a second mounting base, a water suction pump and a main pipe, the water suction pump is fixedly mounted at the top of the first mounting base, a drainage pipe is fixedly connected to one end of the water suction pump, a three-way pipe is fixedly connected to the other end of the water suction pump, first water inlet pipes are fixedly connected to the two sides of the three-way pipe, and branch pipes are fixedly connected to the ends, away from the three-way pipe, of the first water inlet pipes; the ends, away from the first water inlet pipe, of the two branch pipes are fixedly connected with the main pipe, and a first valve is installed on the first water inlet pipe. According to the invention, coal cinder attached to the filter element can be effectively cleaned, convenience is provided for reuse of the filter element, seamless connection drainage can be realized by adjusting a waterway, and the situation that the drainage efficiency of a mine is reduced due to stopping of mine drainage is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of mine drainage, and in particular to an intelligent drainage device for an underground coal mine and an operating method thereof. Background Art

[0002] When working underground in a coal mine, it is generally necessary to drain the mine. Drainage of underground coal mines has the following benefits: First, it keeps the underground working face dry and prevents rocks from sinking and water from falling, which is the main purpose of mine drainage. Second, drainage is the key to ensuring safe production in coal mines and stable social operation. Untimely or incomplete drainage will affect the safe production of mines and the working environment of mines, and thus cause a series of chain reactions. Third, drainage keeps the workplace in the mine safe and dry, and solves problems such as water accumulation, which can effectively improve the work efficiency of miners and make the entire production process smoother. Fourth, drainage can lower the groundwater level in the coal mine, reduce groundwater pressure, shorten the distance from the mining face to the wellhead, and reduce the energy consumption of equipment such as pumping stations and conveying systems. Therefore, underground drainage in coal mines is an indispensable part of safe production in coal mines.

[0003] In the prior art, most underground drainage devices are composed of a water pump, a water pipe and an electrical control system. However, since the pumping operation is carried out in a coal mine, a large amount of coal slag particles will be carried in the sewage when the water pump is pumping water. Although filter elements are also installed in the existing drainage pipelines, a large amount of coal slag will adhere to the filter elements after long-term use, resulting in a decrease in filtration efficiency. As a result, the staff needs to disassemble the filter elements for cleaning. This causes the drainage device to be shut down during the filter element cleaning process, thereby reducing the drainage efficiency.

[0004] To this end, the present invention provides an intelligent drainage device for an underground coal mine and an operation method thereof. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art and solve the problem that most of the underground drainage devices in the prior art are composed of a water pump, a water pipe and an electrical control system, but since the pumping operation is carried out in a coal mine, a large amount of coal slag particles will be carried in the sewage when the water pump is pumping water, although a filter element will be installed in the existing drainage pipeline, a large amount of coal slag will adhere to the filter element after long-term use, resulting in a decrease in filtration efficiency, and then the staff needs to disassemble the filter element for cleaning it, which causes the drainage device to be in a shutdown state during the filter element cleaning process, thereby reducing the drainage efficiency. The present invention proposes an intelligent drainage device for underground coal mines and an operating method thereof.

[0006] The technical solution applicable to the present invention for solving its technical problem is: the intelligent drainage device for underground coal mines described in the present invention comprises a mounting seat 1, a mounting seat 2, a water pump and a main pipe, a water pump is fixedly installed on the top of the mounting seat 1, one end of the water pump is fixedly connected to a drainage pipe, the other end of the water pump is fixedly connected to a tee pipe, both sides of the tee pipe are fixedly connected to a water inlet pipe 1, one end of the water inlet pipe 1 away from the tee pipe is fixedly connected to a branch pipe, one end of the two branch pipes away from the water inlet pipe 1 is fixedly connected to the main pipe, a valve 1 is installed on the water inlet pipe 1, and a valve 2 is installed on the branch pipe , mounting seats 2 are provided on opposite sides of the two water inlet pipes 1, a cylinder is fixedly installed on the mounting seat 2, the output end of the cylinder is fixedly connected to motor 1, the output end of the motor 1 is fixedly connected to a filter element, the filter element fits the inner wall of the branch pipe, a fixing frame is fixedly connected to the inner wall of the filter element away from the motor 1, a filter hole portion is provided on the filter element, the filter hole portion is adapted to the water inlet pipe 1, a U-shaped fixing plate is fixedly connected to the side wall of the mounting seat 2, a spray pipe is fixedly connected to the top of the U-shaped fixing plate, a water inlet pipe 2 is fixedly connected to the top of the spray pipe, and the water inlet pipe 2 is externally connected to a water supply device.

[0007] Preferably, a sealed chamber is provided in the filter element, a motor 2 is fixedly mounted on the inner wall of the sealed chamber, a gear 1 is fixedly connected to the output end of the motor 2, a guide rod is fixedly connected to the inner wall of the sealed chamber, the other end of the guide rod extends outside the sealed chamber and is fixed to a fixed frame, a portion of the guide rod located outside the sealed chamber is symmetrically provided with sliding grooves, a ring frame is sleeved on the portion of the guide rod located outside the sealed chamber, a protrusion 1 is provided on the inner wall of the ring frame, the protrusion 1 is slidably connected to the sliding groove, the gear 1 is connected to the ring frame through a transmission assembly, an annular brush is fixedly connected to the outer wall of the annular frame, and the annular brush fits the filter hole.

[0008] Preferably, the transmission assembly includes gear 2, a screw sleeve, a limit rod and an annular plate, the guide rod is rotatably connected to the part of the guide rod located on the inner side of the sealing chamber, the gear 2 is meshingly connected to gear 1, two limit rods are symmetrically fixed to the end face of the gear 2 away from motor 2, the guide rod is threadedly connected to the part of the guide rod located on the inner side of the sealing chamber, the screw sleeve is slidably connected to the limit rod, the end face of the screw sleeve away from the gear 2 is fixed to an annular plate, one end of the annular plate away from the gear 2 extends to the outside of the sealing chamber and is fixed to multiple groups of L-shaped fixing plates, the side of the annular frame close to the L-shaped fixing plate is rotatably connected to a mounting ring, and the mounting ring is fixed to the L-shaped fixing plate.

[0009] Preferably, a sealing plate is fixedly connected to the guide rod, the sealing plate is annular, and the annular plate is sealingly rotatably connected to the sealing plate and the filter element.

[0010] Preferably, the end of the L-shaped fixing plate away from the annular plate is fixedly connected to a rotating seat, and the end of the rotating seat away from the L-shaped fixing plate is rotatably connected to an annular seat, the inner cavity of the annular seat is communicated with the inner cavity of the rotating seat, a gear ring is fixedly connected to the inner wall of the annular seat, and multiple groups of gear three are meshingly connected to the gear ring, a rotating rod is fixedly connected to the gear three, one end of the rotating rod extends to the outside of the rotating seat and passes through the L-shaped fixing plate, the rotating rod is sealingly and rotatably connected to the rotating seat, a protrusion two is provided on the inner wall of the annular seat, the protrusion two is slidably connected to the sliding groove on the guide rod, and a cleaning component is provided at the end of the rotating rod away from the rotating seat.

[0011] Preferably, the cleaning assembly includes an electromagnet, a permanent magnet and a round-headed brush, the electromagnet is fixedly connected to the inner wall of the rotating rod, the permanent magnet is slidably connected in the inner cavity of the electric rotating rod, the permanent magnet is T-shaped, the electromagnet is adapted to the permanent magnet, one end of the permanent magnet away from the electromagnet extends to the outside of the rotating rod and is fixedly connected to a round-headed brush, a spring 1 is fixedly connected between the permanent magnet and the inner wall of the rotating rod, and the round-headed brush does not fit the filter hole when the spring 1 is in a natural state.

[0012] Preferably, a plurality of groups of T-shaped cavities are evenly arranged in the round-headed brush, a support rod is slidably connected in the T-shaped cavity, a second spring is fixedly connected between the support rod and the inner wall of the T-shaped cavity, and one end of the support rod away from the second spring extends to the outside of the round-headed brush and is fixedly connected to a cleaning piece.

[0013] Preferably, the cleaning member is composed of a circular plate and a plurality of evenly distributed arcuate strips, and the arcuate strips are adapted to the annular brush.

[0014] Preferably, a hollow portion is evenly provided on one side of the filter element close to the sealing cavity, and a funnel surface is provided on the inner wall of the filter element, and the funnel surface is located between the filter hole portion and the hollow portion.

[0015] An operating method of an intelligent drainage device in an underground coal mine comprises the following steps: S1: Under normal conditions, valve 1 on one of the water inlet pipes and valve 2 on the branch pipe are closed, and the pump is started. The sewage from the mine enters the branch pipe through the main pipe, and then enters the water inlet pipe 1 after being filtered by the filter element, and finally is discharged from the drainage pipe through the three-way pipe by the pump; S2: After the filter element in the branch pipe has been used for a period of time, the filter element is driven to rotate in the branch pipe by starting the motor, so that the part of the filter hole corresponding to the water inlet pipe no longer corresponds to the water inlet pipe after the rotation, and the other part of the filter hole that has not corresponded to the water inlet pipe before corresponds to the water inlet pipe, thereby ensuring the filtering effect and drainage efficiency; S3: When the filter element has been used for a long time and needs to be removed for cleaning, close valves 1 and 2 on the water path of the filter element, open valves 1 and 2 on another water path, start the cylinder, and use the cylinder to drive motor 1 and the filter element away from the branch pipe until the filter element slides to the bottom of the spray pipe, start motor 1, and use motor 1 to drive the filter element to rotate, so that the spray pipe can fully flush the surface of the filter element from the outside.

[0016] The beneficial effects of the present invention are as follows: 1. The intelligent underground coal mine drainage device and its operation method described in the present invention can ensure that the coal slag attached to the filter element is effectively cleaned through a double water channel structure in conjunction with a cylinder and a motor, thereby facilitating the reuse of the filter element, and can achieve seamless drainage by adjusting the water channel, thereby avoiding the reduction of drainage efficiency in the mine due to the suspension of mine drainage operations.

[0017] 2. The intelligent drainage device for underground coal mines and its operation method described in the present invention drive gear 1 to rotate and cooperate with the transmission component through motor 2, so that the annular frame can slide back and forth axially along the guide rod, and clean the inner side of the filter hole when the filter element is in use, so as to avoid large pieces of coal slag directly clogging the junction between the filter hole and the water inlet pipe 1 during drainage, resulting in poor drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a stereogram of the present invention as a whole; Figure 2 yes Figure 1 A partial enlarged view of the middle part; Figure 3 It is a partial cross-sectional view of the filter element of the present invention; Figure 4 yes Figure 3 A partial enlarged view of point B in the middle; Figure 5 yes Figure 3 A partial enlarged view of point C in the middle; Figure 6 It is an exploded view of the annular brush of the present invention; Figure 7 It is a partial exploded view of the annular plate of the present invention; Figure 8 It is a partial exploded view of the round-head brush of the present invention; Fig. 9 yes Figure 8 A partial enlarged view of point D in the middle; In the figure: 1, mounting seat 1; 2, water pump; 3, water inlet pipe 1; 4, branch pipe; 5, main pipe; 6, valve 1; 7, valve 2; 8, mounting seat 2; 9, cylinder; 10, motor 1; 11, U-shaped fixing plate; 12, spray pipe; 13, water inlet pipe 2; 14, filter element; 15, sealing chamber; 16, motor 2; 17, gear 1; 18, gear 2; 19, guide rod; 20, screw sleeve; 21, limit rod; 22, sealing plate; 23, ring plate; 24, L-shaped fixing plate Fixed plate; 25, rotating seat; 26, annular seat; 27, gear ring; 28, gear three; 29, mounting ring; 30, annular frame; 31, annular brush; 32, rotating rod; 33, electromagnet; 34, permanent magnet; 35, spring one; 36, round-head brush; 37, spring two; 38, support rod; 39, cleaning piece; 40, three-way pipe; 41, drain pipe; 42, fixed frame; 43, filter hole part; 44, hollow part; 45, funnel surface; 46, circular plate; 47, arc strip. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figure 1-Figure 9As shown, an intelligent drainage device for underground coal mines described in an embodiment of the present invention comprises a mounting seat 1, a mounting seat 2 8, a water pump 2 and a main pipe 5, a water pump 2 is fixedly mounted on the top of the mounting seat 1, one end of the water pump 2 is fixedly connected to a drainage pipe 41, the other end of the water pump 2 is fixedly connected to a tee pipe 40, both sides of the tee pipe 40 are fixedly connected to a water inlet pipe 3, one end of the water inlet pipe 3 away from the tee pipe 40 is fixedly connected to a branch pipe 4, one end of the two branch pipes 4 away from the water inlet pipe 3 is fixedly connected to the main pipe 5, a valve 1 6 is installed on the water inlet pipe 3, a valve 2 7 is installed on the branch pipe 4, opposite sides of the two water inlet pipes 3 are provided with mounting seats 2 8, a cylinder 9 is fixedly mounted on the mounting seat 2 8, and the output end of the cylinder 9 is fixedly connected to There is a motor 10, the output end of the motor 10 is fixedly connected with a filter element 14, the filter element 14 is fitted with the inner wall of the branch pipe 4, the inner wall of the end of the filter element 14 away from the motor 10 is fixedly connected with a fixing frame 42, the filter element 14 is provided with a filter hole portion 43, the filter hole portion 43 is adapted to the water inlet pipe 3, a U-shaped fixing plate 11 is fixedly connected to the side wall of the mounting seat 28, the top of the U-shaped fixing plate 11 is fixedly connected with a spray pipe 12, the top of the spray pipe 12 is fixedly connected with a water inlet pipe 2 13, and the water inlet pipe 2 13 is externally connected to a water supply device; when working, under normal conditions, close the valve 16 on one of the water inlet pipes 3 and the valve 2 7 on the branch pipe 4, start the water pump 2, and the sewage under the mine enters the other branch pipe 4 through the main pipe 5, and then passes through the filter After filtering, the core 14 enters the corresponding water inlet pipe 3, and is finally discharged from the drain pipe 41 by the water pump 2 through the three-way pipe 40. When the filter element 14 in the branch pipe 4 has been used for a period of time, the filter element 14 is driven to rotate in the branch pipe 4 by starting the motor 10. Since the inner diameter of the water inlet pipe 3 only corresponds to a small part of the filter hole part 43, if the filter element 14 does not rotate, water flows through this small part for a long time, which will cause the amount of coal slag attached to this part to be greater than that of other parts. By starting the motor 10 to drive the filter element 14 to rotate in the branch pipe 4, the filter hole part 43 of the filter element 14 is rotated by an angle, so that the part with lighter coal slag attachment can correspond to the water inlet pipe 3, thereby ensuring the filtering effect and drainage efficiency. When the filter element 14 is too long and needs to be drawn out for cleaning, close valve 16 and valve 2 7 on the water path of the filter element 14, open valve 16 and valve 2 7 on another water path, and then start cylinder 9, and drive motor 10 and filter element 14 away from branch pipe 4 through cylinder 9, until the filter element 14 slides to just below the spray pipe 12, start motor 10, and drive filter element 14 to rotate through motor 10, so that the spray pipe 12 can realize all-round flushing of the surface of filter element 14 from the outside. This structure can ensure that the coal slag attached to the filter element 14 is effectively cleaned, providing convenience for the reuse of the filter element 14, and can also achieve seamless drainage by adjusting the water path, avoiding the mine drainage operation from stopping, and reducing the drainage efficiency in the mine.

[0022] The filter element 14 is provided with a sealed chamber 15, on the inner wall of which a motor 2 16 is fixedly mounted, and a gear 17 is fixedly connected to the output end of the motor 2 16, and a guide rod 19 is fixedly connected to the inner wall of the sealed chamber 15, and the other end of the guide rod 19 extends to the outside of the sealed chamber 15 and is fixedly connected to the fixed frame 42, and the guide rod 19 is symmetrically provided with a slide groove on the part of the guide rod 19 located outside the sealed chamber 15, and an annular frame 30 is sleeved on the part of the guide rod 19 located outside the sealed chamber 15, and a protrusion 1 is provided on the inner wall of the annular frame 30, and the protrusion 1 is slidably connected to the slide groove, and the gear 17 is fixedly connected to the output end of the motor 16, and a guide rod 19 is fixedly connected to the inner wall of the sealed chamber 15, and the guide rod 19 is symmetrically provided with a slide groove on the part of the guide rod 19 located outside the sealed chamber 15, and the guide rod 19 is symmetrically provided with a slide groove on the part of the guide rod 19 located outside the sealed chamber 15, and the guide rod 19 is symmetrically provided with a slide groove on the inner wall of the annular frame 30 ... inner wall of the annular frame 30, and the guide rod 19 is symmetrically provided with a slide groove on the inner wall of the annular frame 30, and the guide rod 19 is symmetrically provided with a slide groove on the inner 7 is connected to the annular frame 30 through a transmission assembly, and an annular brush 31 is fixedly connected to the outer wall of the annular frame 30, and the annular brush 31 is in contact with the filter hole portion 43; when working, by controlling the forward and reverse rotation of the motor 2 16, the gear 17 is driven to rotate and cooperate with the transmission assembly, so that the annular frame 30 can slide back and forth along the guide rod 19 in the axial direction, and then the annular brush 31 can clean the inner side of the filter hole portion 43 when the filter element 14 is in use, so as to avoid large pieces of coal slag directly clogging the junction between the filter hole portion 43 and the water inlet pipe 3 during drainage, resulting in poor drainage.

[0023] The transmission assembly includes a gear 2 18, a screw sleeve 20, a limiting rod 21 and an annular plate 23. The guide rod 19 is rotatably connected to the gear 2 18 on the part located inside the sealing chamber 15. The gear 2 18 is meshed with the gear 1 17. Two limiting rods 21 are symmetrically fixed to the end face of the gear 2 18 away from the motor 2 16. The guide rod 19 is threadedly connected to the part located inside the sealing chamber 15 with the screw sleeve 20. The screw sleeve 20 is slidably connected to the limiting rod 21. The end face of the screw sleeve 20 away from the gear 2 18 is fixed to the annular plate 23. One end of the annular plate 23 away from the gear 2 18 extends to the outside of the sealing chamber 15 and is fixed to multiple groups of L-shaped fixing plates 24. A mounting ring 29 is rotatably connected to one side of the annular frame 30 close to the L-shaped fixing plate 24, and the mounting ring 29 is fixedly connected to the L-shaped fixing plate 24; when working, the gear 1 17 drives the gear 2 18 and the limit rod 21 to rotate, so that the screw sleeve 20 rotates accordingly, and because the screw sleeve 20 is threadedly connected to the guide rod 19, the screw sleeve 20 will slide back and forth along the axial direction of the guide rod 19 when rotating, and then the annular plate 23 drives the L-shaped fixing plate 24 to slide back and forth. Through the rotational cooperation of the mounting ring 29 and the annular frame 30, the annular frame 30 can drive the annular brush 31 to slide back and forth with the L-shaped fixing plate 24, so as to clean the inner side of the filter hole 43.

[0024] A sealing plate 22 is fixedly connected to the guide rod 19, and the sealing plate 22 is annular. The annular plate 23 is sealed and rotatably connected to the sealing plate 22 and the filter element 14. During operation, the sealing plate 22 provided on the outer side of the guide rod 19 cooperates with the annular plate 23 to rotate, so that when the filter element 14 is performing drainage operation, sewage will not enter the sealing chamber 15 to cause pollution and damage to the motor 2 16, the gear 1 17 and the gear 2 18.

[0025] The end of the L-shaped fixed plate 24 away from the annular plate 23 is fixedly connected to a rotating seat 25, and the end of the rotating seat 25 away from the L-shaped fixed plate 24 is rotatably connected to an annular seat 26, the inner cavity of the annular seat 26 is communicated with the inner cavity of the rotating seat 25, a gear ring 27 is fixedly connected to the inner wall of the annular seat 26, and a plurality of sets of gears 3 28 are meshingly connected to the gear ring 27, and a rotating rod 32 is fixedly connected to the gear 3 28, one end of the rotating rod 32 extends to the outside of the rotating seat 25 and passes through the L-shaped fixed plate 24, the rotating rod 32 is sealed and rotatably connected to the rotating seat 25, a protrusion 2 is provided on the inner wall of the annular seat 26, and the protrusion 2 is slidably connected to the slide groove on the guide rod 19, and a cleaning component is provided at the end of the rotating rod 32 away from the rotating seat 25; when working, when the L-shaped fixed plate When gear 24 rotates and slides axially back and forth, rotating seat 25 rotates accordingly and makes reciprocating axial motion. At the same time, annular seat 26 makes axial reciprocating motion accordingly with the cooperation of rotating seat 25 and protrusion 2. Because gear ring 27 is relatively stationary relative to gear three 28, gear three 28 rotates around gear ring 27 driven by rotating seat 25, thereby making rotating rod 32 rotate while revolving around guide rod 19. When filter element 14 is in drainage operation state, cleaning assembly does not contact filter hole portion 43. When filter element 14 is in spray cleaning state, after motor 2 16 is started, cleaning assembly will pop out and fit with the inner side of filter hole portion 43, so as to realize rotational cleaning of filter hole portion 43 and enhance cleaning effect.

[0026] The cleaning assembly includes an electromagnet 33, a permanent magnet 34 and a round-headed brush 36. The electromagnet 33 is fixedly connected to the inner wall of the rotating rod 32. The permanent magnet 34 is slidably connected in the inner cavity of the electric rotating rod 32. The permanent magnet 34 is T-shaped. The electromagnet 33 is adapted to the permanent magnet 34. One end of the permanent magnet 34 away from the electromagnet 33 extends to the outside of the rotating rod 32 and is fixedly connected to the round-headed brush 36. A spring 35 is fixedly connected between the permanent magnet 34 and the inner wall of the rotating rod 32. The round-headed brush 36 is in a natural state when the spring 35 is in a natural state. It does not fit with the filter hole portion 43; during operation, when the filter element 14 is in the spray cleaning state, after the motor 2 16 is started, the electromagnet 33 is energized, and a repulsive force is generated between the electromagnet 33 and the permanent magnet 34, so that the permanent magnet 34 compresses the spring 1 35 while driving the round-headed brush 36 to approach the filter hole portion 43 until it contacts. After that, the round-headed brush 36 rotates while revolving and cleaning, and cooperates with the annular brush 31 and the spray pipe 12 to further clean the filter element 14 to prevent coal slag from adhering to the inner wall of the filter hole.

[0027] A plurality of groups of T-shaped cavities are evenly arranged in the round-headed brush 36, and a support rod 38 is slidably connected in the T-shaped cavity. A spring 2 37 is fixedly connected between the support rod 38 and the inner wall of the T-shaped cavity. One end of the support rod 38 away from the spring 2 37 extends to the outside of the round-headed brush 36 and is fixedly connected to a cleaning piece 39. During operation, when the electromagnet 33 is energized and the round-headed brush 36 approaches the filter hole portion 43, the cleaning piece 39 will first contact and be squeezed with the annular brush 31, so that the support rod 38 compresses the spring 2 37 until the cleaning piece 39 slides to the other side of the annular brush 31. Under the elastic force of the spring 2 37, the support rod 38 drives the cleaning piece 39 to penetrate into the bristles of the annular brush 31, so that when the round-headed brush 36 rotates, the cleaning piece 39 rotates accordingly and cleans the bristles of the annular brush 31, thereby ensuring the cleaning effect of the annular brush 31 when the filter element 14 enters the drainage operation state again.

[0028] The cleaning piece 39 is composed of a circular plate 46 and a plurality of evenly distributed arc strips 47, and the arc strips 47 are adapted to the annular brush 31; when working, the arc strips 47 spaced apart on the cleaning piece 39 can not only slide smoothly over the annular brush 31, but also quickly clean the bristles on the annular brush 31.

[0029] A hollow portion 44 is evenly provided on one side of the filter element 14 close to the sealing cavity 15, and a funnel surface 45 is provided on the inner wall of the filter element 14, and the funnel surface 45 is located between the filter hole portion 43 and the hollow portion 44; when working, through the hollow portion 44 and the funnel surface 45 provided on the filter element 14, the coal slag at the cleaning location can be quickly washed away by water when the filter element 14 is in a spraying state, so as to prevent the coal slag from staying inside the filter element 14.

[0030] An operating method of an intelligent drainage device in an underground coal mine comprises the following steps: S1: Under normal conditions, valve 1 6 on one of the water inlet pipes 1 3 and valve 2 7 on the branch pipe 4 are closed, and the pump 2 is started. The sewage in the mine enters the branch pipe 4 through the main pipe 5, and then enters the water inlet pipe 1 3 after being filtered by the filter element 14, and finally is discharged from the drainage pipe 41 through the three-way pipe 40 by the pump 2; S2: After the filter element 14 in the branch pipe 4 has been used for a period of time, the filter element 14 is driven to rotate in the branch pipe 4 by starting the motor 10, so that the portion of the filter hole 43 corresponding to the water inlet pipe 3 no longer corresponds to the water inlet pipe 3 after the rotation, and the other portion of the filter hole 43 that has not corresponded to the water inlet pipe 3 before corresponds to the water inlet pipe 3, thereby ensuring the filtering effect and drainage efficiency; S3: When the filter element 14 has been used for a long time and needs to be drawn out for cleaning, close valve 16 and valve 2 7 on the water path of the filter element 14, open valve 16 and valve 2 7 on another water path, and then start cylinder 9 to drive motor 10 and filter element 14 away from branch pipe 4 until the filter element 14 slides to just below the spray pipe 12, start motor 10, and drive the filter element 14 to rotate through motor 10, so that the spray pipe 12 can achieve all-round flushing of the surface of the filter element 14 from the outside.

[0031] Working principle: under normal conditions, close valve 16 on one of the water inlet pipes 3 and valve 27 on the branch pipe 4, start the water pump 2, and the sewage under the mine enters the branch pipe 4 through the main pipe 5, and then enters the water inlet pipe 3 after being filtered by the filter element 14, and finally is discharged from the drainage pipe 41 by the water pump 2 through the three-way pipe 40. After the filter element 14 in the branch pipe 4 has been used for a period of time, since the inner diameter of the water inlet pipe 3 only corresponds to a small part of the filter hole part 43, if the filter element 14 does not rotate, water flows through this small part for a long time, which will cause the amount of coal slag attached to this part to be greater than that of other parts. By starting the motor 10 to drive the filter element 14 to rotate in the branch pipe 4, the filter hole part 43 of the filter element 14 rotates by an angle, so that the part with lighter coal slag attachment can be aligned with the water inlet pipe 1. 3, to ensure the filtering effect and drainage efficiency, when the filter element 14 is used for a long time and needs to be drawn out for cleaning, close the valve 16 and valve 2 7 on the water path of the filter element 14, open the valve 16 and valve 2 7 of another water path, and then start the cylinder 9, and drive the motor 10 and the filter element 14 away from the branch pipe 4 through the cylinder 9, until the filter element 14 slides to the bottom of the spray pipe 12, start the motor 10, and drive the filter element 14 to rotate through the motor 10, so that the spray pipe 12 can realize all-round flushing of the surface of the filter element 14 from the outside. This structure can not only ensure that the coal slag attached to the filter element 14 is effectively cleaned, and provide convenience for the reuse of the filter element 14, but also can realize seamless drainage by adjusting the water path, avoid stopping the mine drainage operation, and reduce In order to improve the drainage efficiency in the mine, the motor 16 is controlled to rotate forward and reversely, and the gear 17 is driven to rotate and cooperate with the transmission component, so that the annular frame 30 can slide back and forth axially along the guide rod 19, so that the annular brush 31 can clean the inner side of the filter hole 43 when the filter element 14 is in use, so as to avoid large pieces of coal slag directly blocking the junction between the filter hole 43 and the water inlet pipe 3 during drainage, resulting in poor drainage. The gear 17 drives the gear 2 18 and the limit rod 21 to rotate, so that the screw sleeve 20 rotates accordingly. Because the screw sleeve 20 is threadedly connected to the guide rod 19, the screw sleeve 20 will slide back and forth axially along the guide rod 19 when rotating, so that the annular plate 23 drives the L-shaped fixing plate 24 to slide back and forth, and the mounting ring 29 and the annular frame The rotational cooperation of 30 enables the annular frame 30 to drive the annular brush 31 to slide back and forth with the L-shaped fixing plate 24 to clean the inner side of the filter hole 43. When the L-shaped fixing plate 24 rotates and slides axially back and forth, the rotating seat 25 rotates accordingly and makes reciprocating axial motion. At the same time, the annular seat 26 makes axial reciprocating motion accordingly under the cooperation of the rotating seat 25 and the protrusion 2. Because the gear ring 27 is relatively stationary relative to the gear three 28, the gear three 28 rotates around the gear ring 27 driven by the rotating seat 25, thereby making the rotating rod 32 rotate while revolving around the guide rod 19. When the filter element 14 is in the drainage operation state, the cleaning component does not contact the filter hole 43. When the filter element 14 is in the spray cleaning state,After the motor 2 16 is started, the cleaning component will pop out and fit the inner side of the filter hole 43 to realize the rotational cleaning of the filter hole 43 and enhance the cleaning effect. When the filter element 14 is in the spray cleaning state, after the motor 2 16 is started, the electromagnet 33 is energized, and a repulsive force is generated between the electromagnet 33 and the permanent magnet 34, so that the permanent magnet 34 compresses the spring 1 35 while driving the round-headed brush 36 close to the filter hole 43 until it contacts. After that, the round-headed brush 36 performs self-rotation cleaning while revolving and cleaning, and cooperates with the annular brush 31 and the spray pipe 12 to realize further cleaning of the filter element 14 to prevent coal slag from adhering to the inner wall of the filter hole. When the electromagnet 33 is energized, the round-headed brush 36 is close to the filter hole 4 3, the cleaning member 39 will first contact and be squeezed with the annular brush 31, so that the support rod 38 compresses the spring 2 37 until the cleaning space slides to the other side of the annular brush 31. Under the elastic force of the spring 2 37, the support rod 38 drives the cleaning member 39 to penetrate into the bristles of the annular brush 31, so that when the round-headed brush 36 rotates, the cleaning member 39 rotates accordingly and cleans the bristles of the annular brush 31, ensuring the cleaning effect of the annular brush 31 when the filter element 14 enters the drainage operation state again. Through the hollow part 44 and the funnel surface 45 provided on the filter element 14, the coal slag at the cleaning place can be quickly washed away by water when the filter element 14 is in the spraying state, avoiding the coal slag staying inside the filter element 14.

[0032] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as limiting the scope of protection of the present invention.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent drainage device for underground coal mines, characterized in that: The invention comprises a mounting seat 1 (1), a mounting seat 2 (8), a water pump (2) and a main pipe (5), wherein the water pump (2) is fixedly mounted on the top of the mounting seat 1 (1), one end of the water pump (2) is fixedly connected to a drainage pipe (41), the other end of the water pump (2) is fixedly connected to a tee pipe (40), both sides of the tee pipe (40) are fixedly connected to a water inlet pipe 1 (3), one end of the water inlet pipe 1 (3) away from the tee pipe (40) is fixedly connected to a branch pipe (4), one end of the two branch pipes (4) away from the water inlet pipe 1 (3) is fixedly connected to the main pipe (5), a valve 1 (6) is mounted on the water inlet pipe 1 (3), a valve 2 (7) is mounted on the branch pipe (4), and mounting seats 2 (8) are provided on opposite sides of the two water inlet pipes 1 (3), the valve 1 (6) is mounted on the branch pipe (4), and the valve 2 (7) is mounted on the branch pipe (4). A cylinder (9) is fixedly mounted on the second mounting seat (8); the output end of the cylinder (9) is fixedly connected to the first motor (10); the output end of the first motor (10) is fixedly connected to a filter element (14); the filter element (14) is in contact with the inner wall of the branch pipe (4); a fixing frame (42) is fixedly connected to the inner wall of the end of the filter element (14) away from the first motor (10); a filter hole portion (43) is provided on the filter element (14); the filter hole portion (43) is matched with the first water inlet pipe (3); a U-shaped fixing plate (11) is fixedly connected to the side wall of the second mounting seat (8); a spray pipe (12) is fixedly connected to the top end of the U-shaped fixing plate (11); a second water inlet pipe (13) is fixedly connected to the top end of the spray pipe (12); the second water inlet pipe (13) is externally connected to a water supply device.

2. The intelligent drainage device for underground coal mine according to claim 1, characterized in that: The filter element (14) is provided with a sealed chamber (15), a motor 2 (16) is fixedly mounted on the inner wall of the sealed chamber (15), a gear 1 (17) is fixedly connected to the output end of the motor 2 (16), a guide rod (19) is fixedly connected to the inner wall of the sealed chamber (15), the other end of the guide rod (19) extends outside the sealed chamber (15) and is fixedly connected to a fixed frame (42), a portion of the guide rod (19) located outside the sealed chamber (15) is symmetrically provided with a slide groove, a portion of the guide rod (19) located outside the sealed chamber (15) is sleeved with an annular frame (30), a protrusion 1 is provided on the inner wall of the annular frame (30), the protrusion 1 is slidably connected to the slide groove, the gear 1 (17) is connected to the annular frame (30) through a transmission assembly, an annular brush (31) is fixedly connected to the outer wall of the annular frame (30), and the annular brush (31) is in contact with the filter hole portion (43).

3. The intelligent drainage device for underground coal mine according to claim 2, characterized in that: The transmission assembly comprises a second gear (18), a screw sleeve (20), a limiting rod (21) and an annular plate (23); the guide rod (19) is rotatably connected to the second gear (18) on the portion located inside the sealing chamber (15); the second gear (18) is meshingly connected to the first gear (17); two limiting rods (21) are symmetrically fixedly connected to the end surface of the second gear (18) away from the second motor (16); the guide rod (19) is threadedly connected to the portion located inside the sealing chamber (15) The screw sleeve (20) is slidably connected to the limit rod (21); an annular plate (23) is fixedly connected to the end surface of the screw sleeve (20) on one side away from the second gear (18); an end of the annular plate (23) away from the second gear (18) extends to the outside of the sealing cavity (15) and is fixedly connected to a plurality of groups of L-shaped fixing plates (24); a mounting ring (29) is rotatably connected to the side of the annular frame (30) close to the L-shaped fixing plate (24); and the mounting ring (29) is fixedly connected to the L-shaped fixing plate (24).

4. The intelligent drainage device for underground coal mine according to claim 3, characterized in that: A sealing plate (22) is fixedly connected to the guide rod (19), the sealing plate (22) is annular, and the annular plate (23) is rotatably connected to the sealing plate (22) and the filter element (14) in a sealed manner.

5. The intelligent drainage device for underground coal mine according to claim 4, characterized in that: The end of the L-shaped fixed plate (24) away from the annular plate (23) is fixedly connected to a rotating seat (25), and the end of the rotating seat (25) away from the L-shaped fixed plate (24) is rotatably connected to an annular seat (26). The inner cavity of the annular seat (26) is communicated with the inner cavity of the rotating seat (25). A gear ring (27) is fixedly connected to the inner wall of the annular seat (26). A plurality of sets of gear three (28) are meshingly connected to the gear ring (27). A rotating rod (32) is fixedly connected to the gear three (28). One end of the rotating rod (32) extends to the outside of the rotating seat (25) and passes through the L-shaped fixed plate (24). The rotating rod (32) is sealingly rotatably connected to the rotating seat (25). A protrusion 2 is provided on the inner wall of the annular seat (26). The protrusion 2 is slidably connected to a sliding groove on the guide rod (19). A cleaning component is provided at the end of the rotating rod (32) away from the rotating seat (25).

6. The intelligent drainage device for underground coal mine according to claim 5, characterized in that: The cleaning assembly comprises an electromagnet (33), a permanent magnet (34) and a round-headed brush (36); the electromagnet (33) is fixedly connected to the inner wall of the rotating rod (32); the permanent magnet (34) is slidably connected in the inner cavity of the rotating rod (32); the permanent magnet (34) is T-shaped; the electromagnet (33) and the permanent magnet (34) are adapted to each other; one end of the permanent magnet (34) away from the electromagnet (33) extends to the outside of the rotating rod (32) and is fixedly connected to the round-headed brush (36); a spring (35) is fixedly connected between the permanent magnet (34) and the inner wall of the rotating rod (32); and the round-headed brush (36) does not fit the filter hole (43) when the spring (35) is in a natural state.

7. The intelligent drainage device for underground coal mine according to claim 6, characterized in that: A plurality of groups of T-shaped cavities are evenly arranged in the round-headed brush (36), a support rod (38) is slidably connected in the T-shaped cavity, a second spring (37) is fixedly connected between the support rod (38) and the inner wall of the T-shaped cavity, and one end of the support rod (38) away from the second spring (37) extends to the outside of the round-headed brush (36) and is fixedly connected to a cleaning piece (39).

8. The intelligent drainage device for underground coal mine according to claim 7, characterized in that: The cleaning member (39) is composed of a circular plate (46) and a plurality of evenly distributed arcuate strips (47), wherein the arcuate strips (47) are adapted to the annular brush (31).

9. The intelligent drainage device for underground coal mine according to claim 8, characterized in that: A hollow portion (44) is evenly arranged on one side of the filter element (14) close to the sealing cavity (15), and a funnel surface (45) is arranged on the inner wall of the filter element (14), wherein the funnel surface (45) is located between the filter hole portion (43) and the hollow portion (44).

10. An operating method of an underground coal mine intelligent drainage device according to claim 9, characterized in that: The following steps are included: S1: Under normal conditions, valve 1 (6) on one of the water inlet pipes 1 (3) and valve 2 (7) on the branch pipe (4) are closed, and the water pump (2) is started. The sewage from the mine enters the branch pipe (4) through the main pipe (5), is filtered by the filter element (14), and then enters the water inlet pipe 1 (3). Finally, it is discharged from the drainage pipe (41) by the water pump (2) through the tee pipe (40); S2: After the filter element (14) in the branch pipe (4) has been used for a period of time, the filter element (14) is driven to rotate in the branch pipe (4) by starting the motor (10), so that the portion of the filter hole portion (43) corresponding to the water inlet pipe (3) no longer corresponds to the water inlet pipe (3) after the rotation, and the other portion of the filter hole portion (43) that has not previously corresponded to the water inlet pipe (3) corresponds to the water inlet pipe (3), thereby ensuring the filtering effect and drainage efficiency; S3: When the filter element (14) has been used for a long time and needs to be drawn out for cleaning, the valve 1 (6) and the valve 2 (7) on the water path of the filter element (14) are closed, the valve 1 (6) and the valve 2 (7) on another water path are opened, and the cylinder (9) is started to drive the motor 1 (10) and the filter element (14) away from the branch pipe (4) until the filter element (14) slides to the bottom of the spray pipe (12), and the motor 1 (10) is started to drive the filter element (14) to rotate, so that the spray pipe (12) can achieve full-scale flushing of the surface of the filter element (14) from the outside.

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