A mine dust-proof spray water circulation dust-proof curtain

Abstract

The present invention discloses a mine dust-proof spray water circulation dust-proof curtain, which relates to the technical field of mine dust reduction. The present invention includes a framework installed in a mine roadway; the framework includes two vertical and parallel columns, and a cross beam is arranged at the top of the two columns; a fogging nozzle A is arranged on the bottom side of the cross beam along its length direction, and a water supply pipe A communicated with the fogging nozzle is provided; one side of the top of the column is hinged with a swing rod, and a dust-proof net is connected to the bottom side of the swing rod; a groove is dug on the mine roadway ground directly below the framework, a foot pedal is arranged at the top of the groove, a support plate is arranged in the groove, the support plate is a porous plastic plate, and metal filters and plastic filters are respectively arranged on the upper and lower sides of the porous plastic plate. By arranging a dust-proof net in the mine roadway and a fogging nozzle A for spraying water mist on the dust-proof net, and at the same time arranging a water recovery device including a groove and a porous plastic plate below the framework, the present invention realizes the recycling of water during use.

Description

Technical Field

[0001] The invention belongs to the technical field of mine dust reduction, and particularly relates to a mine dust-proof spray water circulation dust-proof curtain. Background Technique

[0002] Coal mine dust is the main factor leading to pneumoconiosis. Preventing coal mine dust is an important measure to ensure the physical health of underground workers. Secondly, when the dust concentration underground exceeds a certain proportion, it is prone to explosion, which further threatens the lives of underground workers. In addition, if the dust falls on the mechanical equipment, it will also affect the mechanical equipment. Especially when the coal mine dust enters the internal structure of the mechanical equipment, it will accelerate the aging speed of the mechanical equipment components, resulting in mechanical equipment failures and affecting safe production.

[0003] Therefore, the prior art uses a dust-proof curtain to reduce dust in the mine roadway. Specifically, atomized water is sprayed onto the dust-proof net through a water pipe to form a water film on the surface of the dust-proof net, which is used to absorb and block dust from entering the pedestrian passage. However, the existing dust-proof curtain does not have a sewage collection device. After the water film on the dust-proof net absorbs dust, its weight will increase, and the dust water on the dust-proof net will continuously drip under the action of its own weight. Workers need to wear special raincoats to pass through, which is very troublesome. At the same time, the dust water falls in the mine roadway, causing the roadway to be wet and affecting the passage of pedestrians. The dust water is also likely to drip into the mechanical equipment, causing mechanical equipment failures. Summary of the Invention

[0004] The purpose of the invention is to provide a mine dust-proof spray water circulation dust-proof curtain. By setting a dust-proof net in the mine roadway and an atomizing nozzle A for spraying water mist onto the dust-proof net, and at the same time setting a water recovery device including a groove and a porous plastic plate below the skeleton, the water can be recycled during use, and the dust water can be collected and discharged uniformly, avoiding the influence of the dust water on the passage of workers and the influence of the dust water on the mechanical equipment.

[0005] To solve the above technical problems, the invention is realized through the following technical solutions:

[0006] The present invention relates to a mine dust-proof spray water circulation dust-proof curtain, which includes a framework installed in a mine roadway; the framework includes two vertical and parallel columns, and a cross beam is arranged at the top of the two columns; a spray nozzle A is arranged on the bottom side of the cross beam along its length direction, and a water supply pipe A communicated with the spray nozzle is provided; one side of the top of the column is hinged with a swing rod, a dust-proof net is connected to the bottom side of the swing rod, and one side of the dust-proof net is connected to the column; and the dust-proof nets on the two columns have an overlapping part when in the closed state; when the dust-proof net is in the closed state, the dust-proof net is located directly below the spray nozzle A; a groove is dug on the mine roadway ground directly below the framework, a foot pedal is arranged at the top of the groove, drainage holes are arranged on the foot pedal, and a breathable foot pad is padded on the foot pedal; a support plate is arranged in the groove, the support plate is a porous plastic plate, metal filters and plastic filters are respectively arranged on the upper and lower sides of the porous plastic plate; and the groove below the support plate forms a water storage area, and a water pump communicated with the water supply pipe A is arranged in the water storage area.

[0007] Further, a suction box is arranged directly below the foot pedal, and the air outlet of the suction box is communicated with a suction pump through an air passage A; the suction box includes a rectangular box body, a plurality of air inlets are arranged on one side of the box body, the other side is communicated with the air passage A, and a filtering device A is arranged at the air inlets; the filtering device A includes a pipe body, one end of the pipe body is provided with a cut surface, a porous end plate A is arranged on the cut surface, the other end of the pipe body is provided with a porous end plate B, and filtering particles are filled in the pipe body; a filter cloth A is arranged outside the porous end plate A.

[0008] Further, the air outlet end of the suction pump is communicated with at least one air passage B, the air outlet end of the air passage B is communicated with a pressure gas storage tank, a drain pipe is arranged at the bottom of the pressure gas storage tank, a first valve and a second valve are arranged on the drain pipe from top to bottom, a discharge pipe is also communicated with the pressure gas storage tank, and a third valve is arranged on the discharge pipe; a water receiving tank is arranged at the bottom of the drain pipe, and a return pipe A with one end located at the bottom side of the groove is arranged at the bottom of the water receiving tank.

[0009] Further, rubber strips are arranged on the opposite sides of the two dust-proof nets along the length direction of the dust-proof nets, and the rubber strips are located on the overlapping part; a counterweight plate is connected to the bottom end of the dust-proof net; and a motor for controlling the swing rod to rotate along the hinged side is arranged on the framework, the motor is connected to a controller, the controller is used for detecting an image acquisition and analysis module for whether a pedestrian is about to pass through the framework, the number of the image acquisition and analysis modules is two, and the two image acquisition and analysis modules are respectively installed on both sides of the framework.

[0010] Further, a dust-proof cloth is also provided between the skeleton and the inner wall of the mine roadway. A support structure for supporting the dust-proof cloth and abutting one edge side of the dust-proof cloth against the inner wall of the mine roadway is provided on the skeleton; an atomizing nozzle B for spraying water mist onto the dust-proof cloth is also included and arranged on one side of the skeleton; the support structure includes a plurality of telescopic mechanisms installed on the support columns or crossbeams and telescoping towards the inner wall side of the mine roadway; a plastic pressing strip is slidably connected to the end of the telescopic mechanism; the plastic pressing strip includes a pressing strip body, and a plurality of "[ " fixing parts are arranged at equal intervals on one side of the pressing strip body, and the other side of the pressing strip body is connected to the edge side of the dust-proof cloth; a connecting structure for sliding along the length direction of the "[ " fixing part is arranged at the end of the telescopic mechanism.

[0011] Further, the telescopic mechanism includes a telescopic sleeve rod with one end fixed on the support column or crossbeam. A locking bolt A is arranged on the telescopic sleeve rod; an inner sleeve is arranged at the end of the telescopic sleeve rod, an outer sleeve is sleeved at the end of the inner sleeve, a locking bolt B is arranged at the port of the outer sleeve, and a spring located inside the inner sleeve is connected between the outer sleeve and the telescopic sleeve rod; a connecting structure is arranged at the end of the outer sleeve.

[0012] Further, the connecting structure includes a round rod passing through a rectangular channel formed by the "[ " fixing part and the pressing strip body. One end of the round rod is rotatably connected to an L-shaped rod fixed on the outer sleeve, and the other end is fixed with a stop rod that can pass through the rectangular channel. A bolt is arranged at the end of the stop rod, and a bolt hole for cooperating with the bolt is arranged at the end of the L-shaped rod;

[0013] Among them, the atomizing nozzle B is installed at the end of the telescopic sleeve rod, and a plurality of the atomizing nozzles B are all communicated with a water supply pipe A through a water supply pipe B. A fourth valve is arranged on one side of the water supply pipe B close to the water supply pipe A.

[0014] Further, a water collecting tank A is arranged on the ground of the mine roadway on one side of the support column. A drain port A is arranged on the bottom side of the water collecting tank A, and a return water pipe B with one end located on the bottom side of the groove is communicated at the drain port A; a water collecting tank B is opened on the crossbeam. A drain port B is arranged on the bottom side of the water collecting tank B, and a return water pipe C with one end located on the bottom side of the groove is communicated at the drain port B;

[0015] Among them, filtering devices B are arranged at both the drain port A and the drain port B; the bottom end of the dust-proof cloth is fixed on the bottom side of the water collecting tank B or the water collecting tank A.

[0016] Further, the filtering device B includes a filter cover covering the drain port A or the drain port B. A filter cloth is wrapped around the outer peripheral side of the filter cover; an insertion pipe inserted into the drain port A or the drain port B is arranged at the port of the filter cover; the breathable foot pad is a grid-shaped substrate.

[0017] The present invention has the following beneficial effects:

[0018] 1. By arranging a dust-proof net in the mine roadway and an atomizing nozzle A for spraying water mist on the dust-proof net, and at the same time arranging a water recovery device including a groove and a porous plastic plate below the framework, the present invention realizes the recycling of water during use, and at the same time uniformly collects and discharges the dust-containing water, avoiding the influence of the dust-containing water on the passage of workers and the impact on mechanical equipment;

[0019] 2. In the present invention, when a pedestrian needs to pass through the passage formed by two dust-proof nets, the swing rod can be controlled to rotate a certain angle according to the need to open the dust-proof net, avoiding the muddy water droplets attached to the dust-proof net from dropping onto the passing mechanical equipment or pedestrians when the pedestrians pass.

[0020] 3. In the present invention, through the arrangement of the air extraction pump and the air extraction box, the flow rate of the air flow above the breathable foot pad is accelerated, so as to conveniently pump the water mist and the like gathered above the breathable foot pad into the groove quickly, avoiding the water droplets contained in the water mist from dropping into the area outside the foot pedal in the natural state.

[0021] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of the dust-proof curtain of the present invention;

[0024] Figure 2 It is a liquid flow diagram of the present invention;

[0025] Figure 3 It is a gas flow diagram of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the plastic pressing strip of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the telescopic mechanism of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the filtering device A of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the filtering device B of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0030] As Figure 1 and 3 , a mine dust-proof spray water circulation dust-proof curtain, including a framework installed in a mine roadway; the framework includes two vertical and parallel struts 10, and a cross beam 1 is arranged at the top of the two struts 10; atomizing nozzles A101 are arranged on the bottom side of the cross beam 1 along its length direction, and a water supply pipe A163 communicated with the atomizing nozzles A101; a swing rod 12 is hinged to one side of the top of the strut 10, a dust-proof net 121 is connected to the bottom side of the swing rod 12, and one side of the dust-proof net 121 is connected to the strut 10; and the dust-proof nets 121 on the two struts 10 have an overlapping part 122 when in the closed state; when the dust-proof net 121 is in the closed state, the dust-proof net 121 is located directly below the atomizing nozzles A101; a groove 13 is dug on the mine roadway ground directly below the framework, a foot pedal 14 is arranged at the top of the groove 13, drain holes are arranged on the foot pedal 14, and a breathable foot pad 15 is padded on the foot pedal 14; a support plate 16 is arranged in the groove 13, the support plate 16 is a porous plastic plate, metal filters and plastic filters are respectively arranged on the upper and lower sides of the porous plastic plate; and a water storage area 161 is formed in the groove 13 below the support plate 16, and a water pump 162 communicated with the water supply pipe A163 is arranged in the water storage area 161; during use, the water in the water storage area 161 is pumped into the water supply pipe A163 through the water pump 162, and then sprayed out through the atomizing nozzles A101. At this time, the atomized water droplets not only adsorb dust in the air during the sedimentation process, but also are adsorbed onto the dust-proof net 121 along with gas flow, etc.; after a large amount of water droplets are adsorbed on the dust-proof net 121, they fall onto the foot pedal 14 located below the dust-proof net 121 under the action of self-gravity, and then are discharged into the support plate 16 through the drain holes on the foot pedal 14, and the clear water is discharged into the water storage area 161 under the filtration of the support plate 16; when it is necessary to pass through the passage formed by the two dust-proof nets 121, at least one of the dust-proof nets 121 can be opened according to requirements, specifically, by controlling the swing rod 12 to rotate a certain angle.

[0031] A suction box is arranged directly below the foot pedal 14, and the air outlet of the suction box is communicated with a suction pump 3 through an air path A31; the suction box includes a box body 2 in a rectangular shape, several air inlets 21 are arranged on one side of the box body 2, the other side is communicated with the air path A31, and a filtering device A is arranged at the air inlets 21; As Figure 6, the filtering device A includes a pipe body 22. One end of the pipe body 22 is provided with a cut surface 23, and a porous end plate A24 is arranged on the cut surface 23. The other end of the pipe body 22 is provided with a porous end plate B26, and the pipe body 22 is filled with filtering particles 27; a filter cloth A25 is arranged outside the porous end plate A24; through the setting of the air extraction pump 3 and the air extraction box, the flow rate of the air flow above the breathable foot pad 15 is accelerated, so as to conveniently suck the water mist and the like gathered above the breathable foot pad 15 into the groove 13 quickly, and prevent the water droplets contained in the water mist from falling into the outer area of the foot pedal 14 in the natural state; at the same time, the cut surface 23 is arranged downward, so that when filtering through the filtering device A, the filter residue is easy to fall under the action of gravity after converging outside the filter cloth A25, avoiding blocking the filter cloth A25 and the porous end plate A24.

[0032] As Figure 2 , the air outlet end of the air extraction pump 3 is communicated with two air paths B32, the air outlet ends of the air paths B32 are communicated with a pressure storage tank 4, a drain pipe 41 is arranged at the bottom of the pressure storage tank 4, a first valve 42 and a second valve 43 are arranged on the drain pipe 41 from top to bottom, an exhaust pipe 44 is also communicated with the pressure storage tank 4, and a third valve 441 is arranged on the exhaust pipe 44; a water receiving tank 45 is arranged at the bottom of the drain pipe 41, and a return pipe A with one end located at the bottom side of the groove 13 is arranged at the bottom of the water receiving tank 45; through the combined use of two pressure storage tanks 4, when one pressure storage tank 4 stores gas, the other pressure storage tank 4 performs an exhaust operation; specifically, when the water mist gas is sucked in through the air extraction pump 3, the gas enters the pressure storage tank 4 and is liquefied into water droplets under the action of pressure. The water droplets fall into the drain pipe 41 under the action of self-gravity. At this time, the first valve 42 is opened, and the water is enriched in the interval between the first valve 42 and the second valve 43; then the first valve 42 is closed first, and then the second valve 43 is opened to discharge the water into the water receiving tank 45, and then the water flows back into the groove 13 through the return pipe A for recycling.

[0033] As Figure 1 , rubber strips are arranged on the opposite sides of the two dust-proof nets 121 along the length direction of the dust-proof nets 121, and the rubber strips are located on the overlapping part 122; the bottom end of the dust-proof net 121 is connected with a counterweight plate 124; it also includes a motor arranged on the skeleton for controlling the swing rod 12 to rotate along the hinged side, the motor is connected with a controller, and the controller is used to detect an image acquisition and analysis module for whether a pedestrian is about to pass through the skeleton. The number of the image acquisition and analysis modules is two, and the two image acquisition and analysis modules are respectively installed on both sides of the skeleton; magnetic particles are arranged in the rubber strips to facilitate the two dust-proof nets 121 to adsorb together after overlapping when the dust-proof nets 121 are closed; at the same time, through the setting of the counterweight plate 124, it is convenient to ensure that the dust-proof net 121 is vertically hanging as a whole; and the counterweight plate 124 is made of a metal plate;

[0034] When it is detected by the image acquisition and analysis module that a pedestrian needs to pass through the framework, the swing rod 12 is controlled by the motor to rotate along the hinge side at this time, so as to open or close the dust-proof net 121.

[0035] A dust-proof cloth 60 is also arranged between the framework and the inner wall of the mine roadway. A support structure for supporting the dust-proof cloth 60 and abutting one edge side of the dust-proof cloth 60 against the inner wall of the mine roadway is arranged on the framework; An atomizing nozzle B601 for spraying water mist on the dust-proof cloth 60 is also included on one side of the framework; The support structure includes a plurality of telescopic mechanisms 6 installed on the support columns 10 or cross beams 1 and telescoping toward the inner wall side of the mine roadway; A plastic pressing strip 61 is slidably connected to the end of the telescopic mechanism.

[0036] Such as Figure 4 , the plastic pressing strip 61 includes a pressing strip body 611. A plurality of "[ " fixing parts 612 are arranged at equal intervals on one side of the pressing strip body 611, and the other side of it is connected to the edge side of the dust-proof cloth 60; A connecting structure for sliding along the length direction of the "[ " fixing part 612 is arranged at the end of the telescopic mechanism; Through the arrangement of the dust-proof cloth 60, it is convenient to prevent dust in the irregular area formed between the framework and the inner wall of the mine roadway. The atomizing nozzle B601 sprays water mist onto the dust-proof cloth 60 to form a water film, and the dust in the mine roadway is absorbed by the water film to achieve the purpose of dust reduction; At the same time, through the arrangement of the telescopic mechanism 6 and the plastic pressing strip 61, it is convenient to control the edge side of the installed dust-proof cloth 60 to closely adhere to the inner wall of the mine roadway, reduce the existence of gaps, and adopt a nail-free method, which is convenient for regular replacement and cleaning of the dust-proof cloth 60.

[0037] Such as Figure 5, the telescopic mechanism includes a telescopic sleeve rod 7 with one end fixed to the support column 10 or the cross beam 1. A locking bolt A71 is provided on the telescopic sleeve rod 7. An inner sleeve 72 is provided at the end of the telescopic sleeve rod 7. An outer sleeve 73 is sleeved at the end of the inner sleeve 72. A locking bolt B731 is provided at the port of the outer sleeve 73. A spring 732 located inside the inner sleeve 72 is connected between the outer sleeve 73 and the telescopic sleeve rod 7. A connecting structure is provided at the end of the outer sleeve 73. The connecting structure includes a round rod 74 passing through a rectangular channel formed by the "[ " fixing part 612 and the pressing strip body 611. One end of the round rod 74 is rotatably connected to an L-shaped rod 75 fixed to the outer sleeve 73, and the other end is fixed with a stop rod 76 that can pass through the rectangular channel. A bolt 761 is provided at the end of the stop rod 76, and a bolt hole matching the bolt 761 is provided at the end of the L-shaped rod 75. The atomizing nozzle B601 is installed at the end of the telescopic sleeve rod 7, and several atomizing nozzles B601 are all connected to the water supply pipe A163 through a water supply pipe B602. A fourth valve 603 is provided on the side of the water supply pipe B602 close to the water supply pipe A. During installation, the plastic pressing strip 61 is glued or sewn to the edge of the dust-proof cloth 60, and then the connecting structure is connected to the "[ " fixing part. Control the telescopic mechanism to extend to a certain extent, and control the inner sleeve 72 and the outer sleeve 73 to be in a compressed state. At this time, the distance between the end of the telescopic mechanism and the inner side wall of the mine roadway is about 1 cm. Then loosen the locking bolt B731. At this time, under the action of the spring 732, the inner sleeve 72 extends outwards and drives the edge side of the dust-proof cloth 60 to closely adhere to the inner side wall of the mine roadway.

[0038] As Figure 1 , a water collecting tank A17 is provided on the ground of the mine roadway on one side of the support column 10. A drain outlet A is provided on the bottom side of the water collecting tank A17, and a return water pipe B with one end located on the bottom side of the groove 13 is connected to the drain outlet A. A water collecting tank B is opened on the cross beam 1. A drain outlet B is provided on the bottom side of the water collecting tank B, and a return water pipe C with one end located on the bottom side of the groove 13 is connected to the drain outlet B. Filter devices B are provided at both the drain outlet A and the drain outlet B. The bottom end of the dust-proof cloth 60 is fixed to the bottom side of the water collecting tank B or the water collecting tank A17. Through the settings of the water collecting tank 17 and the water collecting tank B, it is convenient to collect the water that slides off the dust-proof cloth 60, and then after being filtered by the filter device B, it flows back into the groove 13 for recycling.

[0039] As Figure 7 , the filter device B includes a filter cover 8 covering the drain outlet A or the drain outlet B. A filter cloth 81 is wrapped around the outer peripheral side of the filter cover 8. An insertion tube 82 inserted into the drain outlet A or the drain outlet B is provided at the port of the filter cover 8, which is convenient for installation and also avoids blockage.

[0040] The breathable foot pad 15 is a grid-shaped substrate. When in use, the water droplets will quickly fall onto the foot pedal 14 after falling onto the breathable foot pad 15.

[0041] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A mine dust-proof spray water circulation dust-proof curtain, characterized in that: Comprising a framework installed in a mine tunnel; Wherein, the framework includes two vertical and parallel struts (10), and a crossbeam (1) is provided at the top of the two struts (10); On the bottom side of the crossbeam (1), an atomizing nozzle A (101) is arranged along its length direction, and a water supply pipe A (163) communicated with the atomizing nozzle A (101); One side of the top of the strut (10) is hinged with a swing rod (12), a dust-proof net (121) is connected to the bottom side of the swing rod (12), and one side of the dust-proof net (121) is connected to the strut (10); and the dust-proof nets (121) on the two struts (10) have an overlapping part (122) when in the closed state; When the dust-proof net (121) is in the closed state, the dust-proof net (121) is located directly below the atomizing nozzle A (101); A groove (13) is dug on the mine tunnel floor directly below the framework, a footrest (14) is arranged at the top of the groove (13), drain holes are arranged on the footrest (14), and a breathable foot mat (15) is laid on the footrest (14); A support plate (16) is arranged in the groove (13), the support plate (16) is a porous plastic plate, metal filters and plastic filters are respectively arranged on the upper and lower sides of the porous plastic plate; and a water storage area (161) is formed in the groove (13) below the support plate (16), and a water pump (162) communicated with the water supply pipe A (163) is arranged in the water storage area (161); A dust-proof cloth (60) is further arranged between the framework and the inner side wall of the mine tunnel, and a support structure for supporting the dust-proof cloth (60) and abutting one edge side of the dust-proof cloth (60) against the inner side wall of the mine tunnel is arranged on the framework; the support structure includes a plurality of telescopic mechanisms (6) installed on the strut (10) or the crossbeam (1) and telescoping towards the inner side wall of the mine tunnel; a plastic pressing strip (61) is slidably connected to the end of the telescopic mechanism; Wherein, the plastic pressing strip (61) includes a pressing strip body (611), a plurality of "[“ fixing parts (612) are arranged at equal intervals on one side of the pressing strip body (611), and the other side of the pressing strip body (611) is connected to the edge side of the dust-proof cloth (60); A connecting structure for sliding along the length direction of the "[“ fixing part (612) is arranged at the end of the telescopic mechanism.

2. The mine dust-proof spray water circulation dust-proof curtain according to claim 1, characterized in that, A suction box is arranged directly below the footrest (14), and the air outlet of the suction box is communicated with a suction pump (3) through an air path A (31); Wherein, the suction box includes a rectangular box body (2), a plurality of air inlets (21) are arranged on one side of the box body (2), the other side is communicated with the air path A (31), and a filtering device A is arranged at the air inlets (21); The filtering device A includes a pipe body (22). One end of the pipe body (22) is provided with a cut surface (23), and a porous end plate A (24) is arranged on the cut surface (23). The other end of the pipe body (22) is provided with a porous end plate B (26), and the pipe body (22) is filled with filtering particles (27); a filter cloth A (25) is arranged outside the porous end plate A (24).

3. The mine dust-proof spray water circulation dust-proof curtain according to claim 2, characterized in that, The air outlet end of the air extraction pump (3) is communicated with at least one air path B (32). The air outlet end of the air path B (32) is communicated with a pressure gas storage tank (4). A drain pipe (41) is arranged at the bottom of the pressure gas storage tank (4). A first valve (42) and a second valve (43) are arranged on the drain pipe (41) from top to bottom. A discharge pipe (44) is also communicated with the pressure gas storage tank (4), and a third valve (441) is arranged on the discharge pipe (44); a water receiving tank (45) is arranged at the bottom of the drain pipe (41), and a return water pipe A with one end located at the bottom side of the groove (13) is arranged at the bottom of the water receiving tank (45).

4. A mine dust-proof spray water circulation dust-proof curtain according to claim 1, characterized in that, On the opposite sides of the two dust-proof nets (121), a rubber strip is arranged along the length direction of the dust-proof net (121), and the rubber strip is located on the overlapping part (122); and the bottom end of the dust-proof net (121) is connected with a counterweight plate (124); It further includes a motor arranged on the framework and used for controlling the swing rod (12) to rotate along the hinged side. The motor is connected with a controller, and the controller is used for detecting an image acquisition and analysis module for whether a pedestrian is about to pass through the framework. The number of the image acquisition and analysis modules is two, and the two image acquisition and analysis modules are respectively installed on both sides of the framework.

5. A mine dust-proof spray water circulation dust-proof curtain according to claim 1, characterized in that, It further includes an atomizing nozzle B (601) arranged on one side of the framework and used for spraying water mist on the dust-proof cloth (60).

6. The mine dust-proof spray water circulation dust-proof curtain according to claim 5, characterized in that, The telescopic mechanism includes a telescopic sleeve rod (7) with one end fixed on the pillar (10) or the cross beam (1), and a locking bolt A (71) is arranged on the telescopic sleeve rod (7); The end of the telescopic sleeve rod (7) is provided with an inner sleeve (72), the end of the inner sleeve (72) is sleeved with an outer sleeve (73), a locking bolt B (731) is arranged at the port of the outer sleeve (73), and a spring (732) located inside the inner sleeve (72) is connected between the outer sleeve (73) and the telescopic sleeve rod (7); a connecting structure is arranged at the end of the outer sleeve (73).

7. A mine dust-proof spray water circulation dust-proof curtain according to claim 6, characterized in that, The connecting structure includes a round rod (74) penetrating through the rectangular channel formed by the "[” fixing part (612) and the pressing strip body (611). One end of the round rod (74) is rotatably connected with an L-shaped rod (75) fixed on the outer sleeve (73), and the other end is fixed with a blocking rod (76) that can pass through the rectangular channel. A bolt (761) is arranged at the end of the blocking rod (76), and a bolt hole matched with the bolt (761) is arranged at the end of the L-shaped rod (75); Among them, the atomizing nozzle B (601) is installed at the end of the telescopic sleeve rod (7), and several atomizing nozzles B (601) are all connected to the water supply pipe A (163) through a water supply pipe B (602), and a fourth valve (603) is arranged on the side of the water supply pipe B (602) close to the water supply pipe A.

8. A mine dust-proof spray water circulation dust-proof curtain according to any one of claims 5-7, characterized in that, A water collecting tank A (17) is arranged on the mine roadway ground on one side of the support column (10). A drain outlet A is arranged on the bottom side of the water collecting tank A (17), and a return water pipe B with one end located on the bottom side of the groove (13) is communicated at the drain outlet A. A water collecting tank B is arranged on the cross beam (1). A drain outlet B is arranged on the bottom side of the water collecting tank B, and a return water pipe C with one end located on the bottom side of the groove (13) is communicated at the drain outlet B. Among them, filtering devices B are arranged at both the drain outlet A and the drain outlet B. The bottom end of the dust-proof cloth (60) is fixed on the bottom side of the water collecting tank B or the water collecting tank A (17).

9. A mine dust-proof spray water circulation dust-proof curtain according to claim 8, characterized in that, The filtering device B includes a filter cover (8) covering the drain outlet A or the drain outlet B, and a filter cloth (81) is wrapped around the outer peripheral side of the filter cover (8). An insertion pipe (82) inserted into the drain outlet A or the drain outlet B is arranged at the port of the filter cover (8).

10. The mine dust-proof spray water circulation dust-proof curtain according to claim 1, characterized in that, The breathable foot pad (15) is a grid-shaped plastic plate.

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