A spray curtain control device for return air lane in coal mine

Abstract

The present invention relates to the technical field of coal mine return airway, and specifically to a coal mine return airway spray curtain control device, comprising a base plate, two slide plates are installed on one side of the base plate, sliding components are installed on the outer sides of the two slide plates, a water inlet groove is opened at the bottom of the base plate, a water blocking component is arranged on the top of one end of the water inlet groove, a rotating component is arranged in the middle of one side of the base plate, a water diversion component is arranged on the top of the base plate, connecting components are respectively arranged on the sides away from the base plate and the sliding component, and supporting components are arranged on one end of the connecting component and the base plate. The present invention uses the sliding component and the rotating component to drive the right-angle tube to move upward through the thread of the hollow rod, thereby increasing the distance between the right-angle tube and the ground, avoiding the influence of excessively high vehicles entering and exiting the area on the spray system, and when people enter and exit, the side rod is pushed to drive the movable fence to move to the right side, so as to facilitate people to enter and exit.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine return air lanes, in particular to a coal mine return air lane spray curtain control device. Background Art

[0002] The return air lane of a coal mine is an important part of the mine ventilation system. It mainly serves as a channel for the airflow (i.e. "return air") that flows out after cleaning the working face. It can be divided into four types: the main return air lane, the main return air lane, the mining area return air lane, and the working face return air lane. In addition, some mines also have special return air lanes.

[0003] Dedicated return air ducts should be used exclusively for return air and must not be used for transporting materials, installing electrical equipment, etc. This is to ensure the ventilation effect and safety performance of the return air ducts. Fences (such as iron fences) are usually set at the entrance of dedicated return air ducts to isolate people and equipment and prevent them from entering the return air ducts and interfering with the ventilation system.

[0004] The spray curtain in the return air lane of a coal mine is one of the important facilities for dust prevention and reduction in coal mines. Its main function is to wet the dust by spraying water mist and sprinkling water to make it settle, thereby reducing the dust content in the air and suppressing the flying of falling dust. The spray curtain in the return air lane of a coal mine usually consists of the following parts: a spray device, which includes a spray nozzle, a water pipe, a solenoid valve, etc., for spraying water mist into the air; a control system, which includes a control box, a dust concentration sensor, a light control sensor, etc., for monitoring the dust concentration and controlling the start and stop of the spray device; a bracket and fixings, which are used to fix the spray device on the top or side wall of the return air lane.

[0005] Existing spray curtains are generally fixed directly to the walls or tops on both sides by brackets and fixings. In most coal mine safety management regulations, when professional personnel need to pass through the area where the spray curtain is located, they are usually required to temporarily close or adjust the spray curtain to ensure the safety of personnel and reduce the impact of water mist on personnel. However, in reality, most coal mines do not have a system for automatically controlling the spray curtain. The state of the spray curtain needs to be manually adjusted by on-site staff according to actual conditions. This requires the staff to have a high sense of responsibility and skilled operating skills to ensure that the dust reduction effect is guaranteed while not affecting the safety of personnel passage, especially in the dedicated return air channel with a fence installed. Such operation is particularly cumbersome.

[0006] Moreover, fences are mostly used to close the return air duct to restrict the entry of non-professionals or vehicles. Since the opening or adjustment of the spray curtain is cumbersome, and the original road or open space is not considered to be blocked when laying the fence, the access of maintenance personnel and vehicles is often restricted. Setting up new entrances and exits will also increase costs, and the existing fences generally do not have dust reduction functions and cannot meet existing conditions; even if some fences have dust reduction functions and can be opened to allow vehicles or pedestrians to pass, their spray curtains are difficult to adapt to the entry and exit of inspection vehicles at different heights, and closing the spray curtain is likely to endanger the surrounding environment and the dust reduction effect.

[0007] Therefore, it is necessary to design a multifunctional coal mine return airway spray curtain control device that can be easily opened and adjusted. Summary of the invention

[0008] In view of the problem that the existing spray curtain is inconvenient to adjust when maintenance personnel or vehicles enter and exit the return air lane, the present application provides a spray curtain control device for the return air lane of a coal mine.

[0009] The technical scheme of the present invention is: a coal mine return airway spray curtain control device, comprising a fence, two slide plates are installed on one side of the fence, the outer sides of the two slide plates are sleeved with sliding components, a water inlet pipe is opened at the bottom of the fence, a water blocking component is arranged on the top of one end of the water inlet pipe, a rotating component is arranged in the middle of one side of the fence, a water diversion component is arranged on the top of the fence, a connecting component is respectively arranged on the side away from the sliding component, and a supporting component is arranged on the connecting component and one end of the fence;

[0010] A sliding assembly is assembled to slide on the outside of two slide plates so that the teeth drive the hollow rod to rotate, thereby driving the right-angle tube to rise and fall;

[0011] The rotating assembly is assembled to convert the power of the hollow rod rotation into the power to drive the right-angle tube to rise and fall through the thread inside the hollow rod;

[0012] A water blocking assembly is configured to move the push rod by moving the fence, so that the block changes the shielding area of ​​the water inlet pipe;

[0013] The connecting assembly is assembled so that two connecting assemblies are linked to each other by splicing the panels and the blocks, the connecting assembly and the fence are connected to each other by splicing the panels and the recessed blocks, and the connecting assembly and the sliding assembly are connected to each other by splicing the panels and the card boards;

[0014] A support assembly is provided to provide support for the closed tube, the sealed tube and the right-angle tube through the support rods.

[0015] Furthermore, the two slides are installed on one side of fence one, and a plurality of rollers are rotatably installed on the inner side of the slide. A guide groove plate is provided on one side of fence one, a support rod is installed on one side of fence one, a water inlet valve is installed on one side of fence one, and the water inlet valve is connected with the water inlet pipe. A base plate is fixed on the side of fence one opposite to the side on which the support assembly is installed, a square hole is provided on one side of the base plate, a diversion groove is provided inside the base plate, a water diversion groove is provided inside the base plate, the water diversion groove is located on the side of the diversion groove away from the support rod, and both the water diversion groove and the diversion groove are connected with the water inlet pipe, a circular water groove is provided on the top of the water diversion groove, a vertical hole plate is provided on one side of fence one, and the vertical hole plate is located at the bottom of the guide groove plate.

[0016] Further, the water guide assembly is configured to guide the water flow inside the fence to the nozzle through the hollow column and the right-angle tube;

[0017] The hollow column is installed on the top of the base plate, and the inner side of the hollow column is connected to the diversion groove. A pillar is fixed on the top of the fence, and a water pipe is fixed on the inner side of the pillar. One end of the water pipe is located on the inner side of the hollow column, and the inner side of the water pipe is connected to the inner side of the hollow column. A plurality of water nozzles are installed on the outer side of the water pipe.

[0018] Furthermore, the rotating assembly includes a hollow rod, which is rotatably installed on the inner side of the circular water tank. The outer side of the hollow rod is provided with a ring-shaped groove, and the groove is located on the inner side of the square hole. The inner side of the hollow rod is provided with a right-angle tube installed through a thread, and two limiting blocks are fixed to the outer side of the right-angle tube. A limiting groove is provided on the top of the circular water tank, and the two limiting blocks are located on the inner side of the limiting groove. A plurality of water nozzles are installed on the outer side of the right-angle tube.

[0019] Furthermore, the sliding assembly includes a movable fence sleeved on the outer sides of two slide plates, a bottom plate is installed on one side of the movable fence, a plurality of teeth are installed on one side of the bottom plate, and the two teeth close to the rightmost side of the bottom plate are engaged with the grooves, two slide plates are provided on one side of the bottom plate, and the two slide plates are respectively located on the inner sides of the two slide plates, an inclined groove plate is passed through and fixed at one end of the movable fence close to one of the fences, a side rod is installed on the other side of the movable fence, and a wheel is rotatably connected to the inner side of the side rod.

[0020] Furthermore, the water blocking assembly also includes a clamping block, a square groove is opened on the top of the water inlet pipe, the clamping block is installed on the inner side of the square groove through a spring, a push rod is installed on one side of the clamping block, and the push rod is located on the inner side of the vertical hole plate.

[0021] Furthermore, the connection assembly includes a square fence, and a water drainage assembly is installed on the top of the square fence;

[0022] A water guide assembly, which is configured to guide water from the water guide pipe or one of the water guide rods connected thereto to the water nozzle or another water guide rod connected thereto through the water guide rod;

[0023] Two supporting columns are installed on the top of the square fence, a water running rod is installed on the inner sides of the two supporting columns, and a plurality of water spray nozzles are installed on the outer sides of the water running rod.

[0024] Furthermore, the support assembly includes a base, which is installed on the square fence and one end of the fence. A square rod is installed on the top of the base. An empty groove is opened on the top of the square rod. A support rod is placed inside the empty groove, and limit blocks are installed on both sides of the support rod.

[0025] Furthermore, a T-shaped column is fixed through one side of the square fence, a puzzle plate is rotatably installed on the outer side of the T-shaped column, a puzzle block is fixed on one side of the square fence, the puzzle plate is located on the side of the puzzle block close to fence one, an angle brace is installed on one side of the square fence, the angle brace is located at the bottom of the puzzle block, a concave block is installed on one side of fence one, and the concave block is located on the top of the support rod, a rotating column is installed on the other side of the movable fence, and a clamping plate is rotatably installed on the outer side of the rotating column.

[0026] Furthermore, a side cover is threadedly installed on the outer side of one end of the right-angle tube located outside the fence, and the side cover is connected to the outer side of the right-angle tube by a rope, a sealing cap is threadedly installed on the outer side of one end of the water pipe, and the sealing cap is connected to the outer side of the water pipe by a rope, a sealing tube is threadedly installed on the outer side of the water pipe, and the sealing tube is located on a side of the sealing cap close to the sealing tube, a closed tube is threadedly installed on the outer side of the water rod, and closed covers are installed on the outer sides of both ends of the water rod.

[0027] The beneficial effects of the present invention are as follows:

[0028] (1) In the coal mine return airway spray curtain control device described in the present invention, the worker rotates the puzzle plate to separate the concave block, and then pushes the side rod to drive the movable fence to move to the right when the vehicle enters or exits, so that the distance between the right-angle tube and the ground is increased. Compared with the prior art, the vehicle entry and exit area is prevented from affecting the spray system and the return airway, and the surrounding environment is avoided from being harmed and the effect of affecting the return airway is avoided. When personnel enter or exit, they then push the side rod to drive the movable fence to move to the right to facilitate personnel entry or exit.

[0029] (2) The coal mine return airway spray curtain control device described in the present invention has the beneficial effect (1). When the movable fence moves to contact the support rod, the movable fence pushes the push rod to move upward along the vertical hole plate through the inclined groove plate, and the push rod drives the card block to squeeze the spring to move into the inner side of the square groove, thereby increasing the unit area through which the water flows, thereby increasing the pressure on the water nozzle, thereby increasing the spray volume and enhancing the dust reduction effect, thereby reducing the impact of the weakening of the dust reduction effect caused by the opening of the fence.

[0030] (3) The coal mine return airway spray curtain control device described in the present invention, while connecting the square fence, fence one and the movable fence, the worker rotates the sealing cover to separate from the water guide pipe, and then rotates the sealing cover to separate from the water run rod, and then rotates the sealing tube to the outside of the water run rod to connect the water run rod and the water guide pipe. The sealing tube forms a seal through the outer threads of the water run rod and the water guide pipe. The sealing tube is rotated to the outside of the water run rod of the next square fence to connect two adjacent water run rods. The sealing tube forms a seal through the outer threads of the adjacent water run rods. The installation of the spray system and the fence is combined together to improve practicality.

[0031] (4) The present invention relates to a coal mine return airway spray curtain control device. The staff places a base plate and a movable fence at the preset inlet and outlet, and then places a square fence on the back of the base plate, and places a right-angle tube on the inner side of the support rod on the back of the base plate. The staff connects the square fence to fence one, connects the square fence to the movable fence, and then places and connects the two square fences next to each other. The above method is used to place the base plate and the movable fence at the preset inlet and outlet, and connect them together through the square fence. Then, a bag filled with sand or soil is placed on the inner side of the angle support rod, thereby extending the overall length of the device and adapting to return airways of various specifications. Then, a bag filled with sand or soil is placed on the inner side of the angle support rod, thereby solving the problem of inconvenience in entry and exit of vehicles and personnel and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0034] Figure 2 A schematic diagram of the structure of a substrate and a fence provided by the present invention;

[0035] Figure 3 for Figure 2 A magnified image of point A;

[0036] Figure 4 for Figure 2 The enlarged view of point B;

[0037] Figure 5 A schematic cross-sectional view of the substrate and fence provided by the present invention;

[0038] Figure 6 for Figure 5 Enlarged view of point C;

[0039] Figure 7 for Figure 5 The enlarged view of point D;

[0040] Figure 8 for Figure 5 The enlarged view of point E;

[0041] Fig. 9 for Figure 5 The enlarged view of point F;

[0042] Fig.10 for Figure 5 The enlarged view of G;

[0043] Fig.11 A schematic diagram of the three-dimensional structure of the water retaining assembly provided by the present invention;

[0044] Fig.12 A cross-sectional schematic diagram of a support assembly provided by the present invention;

[0045] Fig.13 A schematic diagram of the three-dimensional structure of a hollow rod provided by the present invention;

[0046] Fig.14 Schematic diagram of the three-dimensional structure of the sliding assembly provided by the present invention Figure 1 ;

[0047] Fig.15 Schematic diagram of the three-dimensional structure of the sliding assembly provided by the present invention Figure 2 ;

[0048] Fig.16 for Fig.15 Enlarged view of H;

[0049] Fig.17 A schematic diagram of the three-dimensional structure of a connection assembly of a spray curtain control device for a return air lane in a coal mine provided by the present invention;

[0050] Fig.18 A cross-sectional schematic diagram of a connection assembly of a spray curtain control device for a return air lane in a coal mine provided by the present invention;

[0051] Fig.19 A schematic diagram of a mirror-image stereoscopic structure of a coal mine return air lane spray curtain control device provided by the present invention.

[0052] In the figure: 11, fence 1; 111, base plate; 12, slide plate; 121, roller; 13, guide plate; 14, rotating assembly; 141, hollow rod; 142, groove; 15, square hole; 16, support rod; 161, concave block; 17, water inlet valve; 171, water inlet pipe; 172, diversion groove; 173, water diversion groove; 174, round water groove; 18, vertical hole plate; 19, water blocking assembly; 191, push rod; 192, block; 193, square groove; 2, water diversion assembly; 21, hollow column; 22, support column; 231, water guide pipe; 232, cover; 24, water nozzle; 25, sealing pipe; 261 , right angle tube; 262, side cover; 263, limit block; 264, limit slot; 3, sliding assembly; 31, movable fence; 32, rotating column; 33, card plate; 34, side rod; 35, wheel; 36, slide plate; 37, bottom plate; 38, teeth; 39, inclined groove plate; 4, connecting assembly; 41, square fence; 42, puzzle board; 43, T-column; 44, puzzle block; 5, water discharge assembly; 51, water discharge rod; 52, closed pipe; 53, closed cover; 54, support column; 6, angle support rod; 7, support assembly; 71, base; 72, square rod; 73, empty slot; 74, support rod; 75, limit block. DETAILED DESCRIPTION

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0054] Embodiment 1, as Figure 1-Figure 18 As shown, an embodiment of the present invention provides a coal mine return air channel spray curtain control device, including a fence 11, two slide plates 12 are installed on one side of the fence 11, and the outer sides of the two slide plates 12 are sleeved with sliding components 3, a water inlet pipe 171 is opened at the bottom of the fence 11, and a water retaining component 19 is arranged on the top of one end of the water inlet pipe 171, a rotating component 14 is arranged in the middle of one side of the fence 11, a water diversion component 2 is arranged on the top of the fence 11, and a connecting component 4 is respectively arranged on the side away from the sliding component 3, and a supporting component 7 is arranged on the connecting component 4 and one end of the fence 11.

[0055] Specifically, two slide plates 12 are installed on one side of the fence 11, a plurality of rollers 121 are rotatably installed on the inner side of the slide plate 12, a guide groove plate 13 is provided on one side of the fence 11, a support rod 16 is installed on one side of the fence 11, a water inlet valve 17 is installed on one side of the fence 11, and the water inlet valve 17 is connected to the water inlet pipe 171, a base plate 111 is fixed on the side of the fence 11 opposite to the side where the support assembly 7 is installed, and one side of the base plate 111 A square hole 15 is provided, a diversion groove 172 is provided inside the base plate 111, a water diversion groove 173 is provided inside the base plate 111, the water diversion groove 173 is located on the side of the diversion groove 172 away from the support rod 16, and the water diversion groove 173 and the diversion groove 172 are both connected to the water inlet pipe 171, a round water groove 174 is provided on the top of the water diversion groove 173, a vertical hole plate 18 is provided on one side of the fence 11, and the vertical hole plate 18 is located at the bottom of the guide groove plate 13.

[0056] In this embodiment, the fence 11 can provide fixed support for the guide groove plate 13, the guide groove plate 13 can provide a moving space for the bottom plate 37, the support rod 16 can support the fence 11 on the ground, and the roller 121 can make it easier for the movable fence 31 to slide on the slide 12.

[0057] A water guide assembly 2, which is configured to guide the water flow inside the substrate 111 to the nozzle through the hollow column 21 and the right-angle tube 261;

[0058] Specifically, the water diversion assembly 2 is equipped to guide the water flow inside the fence 11 to the nozzle through the hollow column 21 and the right-angle pipe 261; the water diversion assembly 2 includes a hollow column 21, which is installed on the top of the substrate 111, and the inner side of the hollow column 21 is connected to the diversion groove 172, a pillar 22 is fixed to the top of the fence 11, and a water pipe 231 is fixed to the inner side of the pillar 22, one end of the water pipe 231 is located on the inner side of the hollow column 21, and the inner side of the water pipe 231 is connected to the inner side of the hollow column 21, and a plurality of water nozzles 24 are installed on the outer side of the water pipe 231.

[0059] Specifically, the rotating component 14 is assembled to convert the power of the rotation of the hollow rod 141 into power for driving the right-angle tube 261 to rise and fall through the thread on the inner side of the hollow rod 141; the rotating component 14 includes a hollow rod 141, which is rotatably installed on the inner side of the circular water tank 174, and the outer side of the hollow rod 141 is provided with a ring-shaped groove 142, and the groove 142 is located on the inner side of the square hole 15, and the inner side of the hollow rod 141 is provided with a right-angle tube 261 through a thread, and two limiting blocks 263 are fixed to the outer side of the right-angle tube 261, and a limiting groove 264 is provided on the top of the circular water tank 174, and the two limiting blocks 263 are located on the inner side of the limiting groove 264, and a plurality of water nozzles 24 are installed on the outer side of the right-angle tube 261.

[0060] In this embodiment, the limiting groove 264 can prevent the right-angle tube 261 from rotating, causing the right-angle tube 261 to move toward the top of the fence 11, and at the same time prevent the right-angle tube 261 from moving out from the inner side of the hollow rod 141.

[0061] Specifically, the sliding assembly 3 is assembled to slide on the outer sides of the two slide plates 12 so that the teeth 38 drive the hollow rod 141 to rotate, thereby driving the right-angle tube 261 to rise and fall; the sliding assembly 3 includes a movable fence 31 sleeved on the outer sides of the two slide plates 12, a bottom plate 37 is installed on one side of the movable fence 31, a plurality of teeth 38 are installed on one side of the bottom plate 37, and the two teeth 38 close to the rightmost side of the bottom plate 37 are meshed with the groove 142, two slide plates 36 are provided on one side of the bottom plate 37, and the two slide plates 12 are respectively located on the inner sides of the two slide plates 36, an end of the movable fence 31 close to the fence 11 is penetrated and fixed with an inclined groove plate 39, and a side rod 34 is installed on the other side of the movable fence 31, the inner side of the side rod 34 is rotatably connected with a wheel 35, a motor is fixed at the bottom of the side rod 34, and the output end of the motor is fixed to the inner side of the wheel 35.

[0062] In this embodiment, the interaction between the two slide plates 36 and the two slide plates 12 can ensure that the movable fence 31 moves horizontally in front of the fence 11 and the base plate 111, and the wheels 35 can provide convenience for pushing the side rods 34 to move.

[0063] Specifically, the water-blocking assembly 19 is configured to drive the push rod 191 to move by moving the fence 31, so that the block 192 changes the blocking area of ​​the water inlet pipe 171; the water-blocking assembly 19 also includes the block 192, and a square groove 193 is provided on the top of the water inlet pipe 171. The block 192 is installed on the inner side of the square groove 193 through a spring, and the push rod 191 is installed on one side of the block 192, and the push rod 191 is located on the inner side of the vertical hole plate 18.

[0064] In this embodiment, the spring is configured to press the block 192 against the inner side of the water inlet pipe 171, thereby reducing the unit area through which the water flows by half.

[0065] Specifically, the connecting component 4 is assembled to link the two connecting components 4 with each other by splicing the puzzle panels 42 and the puzzle blocks 44, to connect the connecting component 4 and the fence 11 with each other by splicing the puzzle panels 42 and the recessed blocks 161, and to connect the connecting component 4 and the sliding component 3 with each other by splicing the puzzle panels 42 and the clamping plates 33; the connecting component 4 includes a square fence 41, two supporting columns 54 are installed on the top of the square fence 41, a water running rod 51 is installed on the inner sides of the two supporting columns 54, and a plurality of water nozzles 24 are installed on the outer sides of the water running rod 51.

[0066] A water guide assembly 5 is installed on the top of the square fence 41 ; the water guide assembly 5 is configured to guide water from the water pipe 231 or one of the water guide rods 51 connected thereto to the water nozzle 24 or another water guide rod 51 connected thereto through the water guide rod 51 .

[0067] The supporting assembly 7 includes a base 71, which is installed on one end of the square fence 41 and the fence 11. A square rod 72 is installed on the top of the base 71. A hollow groove 73 is opened on the top of the square rod 72. A support rod 74 is placed on the inner side of the hollow groove 73. Limiting blocks 75 are installed on both sides of the support rod 74.

[0068] In this embodiment, the staff connects the external water pump to the water inlet valve 17 through the water pipe, turns on the water pump, and water enters the water inlet pipe 171 through the water inlet valve 17 under the pressure of the water pump, and then the water flows into the water diversion groove 173 and the diversion groove 172 respectively. The water flow entering the diversion groove 173 will enter the right-angle pipe 261 through the circular water groove 174, and finally be sprayed through the water nozzle 24. The water flow entering the diversion groove 172 will enter the water guide pipe 231 and the water rod 51 through the hollow column 21, and finally be sprayed through the water nozzle 24 to reduce dust.

[0069] When the movable fence 31 needs to be moved, the staff rotates the puzzle plate 42 clockwise around the T-shaped column 43 until the puzzle plate 42 is separated from the concave block 161, and then the staff pushes the side rod 34 to drive the movable fence 31 to move along the outer side of the slide plate 12 to the right side of the movable fence 31, or Fig.14 As shown, a power source can be added to one side of the wheel 35, for example, a set of motors can be added, and the motor can be controlled to drive the movable fence 31 to move along the outer side of the slide 12 to the right side of the movable fence 31 through the side rod 34. According to the actual movement requirements, the movable fence 31 is moved to the right side of the movable fence 31 to contact the left side of the support rod 16. At the same time, the movable fence 31 drives the teeth 38 to the right side of the movable fence 31 through the bottom plate 37. The teeth 38 drive the hollow rod 141 to rotate through the meshing action with the groove 142. The hollow rod 141 drives the right-angle tube 261 to move upward through the thread, thereby making the right angle The distance between the tube 261 and the ground is increased, which prevents the spray system from being affected by vehicles entering and exiting the area too high. The right-angle tube 261 drives the support rod 74 on the outside of the right-angle tube 261 to move upward. When the movable fence 31 moves to contact the support rod 16, the movable fence 31 pushes the push rod 191 to move upward along the vertical hole plate 18 through the inclined groove plate 39. The push rod 191 drives the block 192 to squeeze the spring into the inner side of the square groove 193, thereby increasing the unit area through which the water flows, thereby increasing the pressure on the water nozzle 24, enhancing the dust reduction effect on the vehicle, and avoiding harm to the surrounding environment and pollution of the return air channel environment.

[0070] Embodiment 2, based on embodiment 1, as Figure 1-18As shown in the figure, an embodiment of the present invention provides a spray curtain control device for a return air channel in a coal mine, a T-shaped column 43 is installed on one side of a square fence 41, a jigsaw panel 42 is mounted on the outer side of the T-shaped column 43, a jigsaw block 44 is installed on one side of the square fence 41, the jigsaw panel 42 is located on the side of the jigsaw block 44 close to the fence 11, an angle brace 6 is installed on one side of the square fence 41, the angle brace 6 is located at the bottom of the jigsaw block 44, a recessed block 161 is installed on one side of the fence 11, and the recessed block 161 is located on the top of the support rod 16, a rotating column 32 is installed on the other side of the movable fence 31, and a clamping plate 33 is mounted on the outer side of the rotating column 32.

[0071] A side cover 262 is installed on the outer side of the right-angle tube 261 at one end outside the substrate 111 through a thread, and the side cover 262 is connected to the outer side of the right-angle tube 261 through a rope, a sealing cap 232 is installed on the outer side of one end of the water pipe 231 through a thread, and the sealing cap 232 is connected to the outer side of the water pipe 231 through a rope, a sealing tube 25 is installed on the outer side of the water pipe 231 through a thread, and the sealing tube 25 is located on the side of the sealing cap 232 close to the sealing tube 25, a closed tube 52 is installed on the outer side of the water rod 51 through a thread, and closed covers 53 are installed on the outer sides of both ends of the water rod 51.

[0072] In this embodiment, the cover 232 is used to close the water pipe 231, the side cover 262 is used to close the right-angle pipe 261, and the closing cover 53 is used to close the water rod 51 to prevent debris from entering and causing blockage during transportation;

[0073] The staff place fence 11 and mobile fence 31 at the preset entrance and exit respectively, then place the bag filled with sand or soil on the inner side of the support rod 16, support fence 11 and mobile fence 31 on the ground, then place square fence 41 on the back of fence 11, the staff use their hands to drive the puzzle board 42 to rotate counterclockwise around the T-shaped column 43 as the center until the puzzle board 42 is engaged with the concave block 161, connect the square fence 41 with fence 11, then place the square fence 41 on the left side of the mobile fence 31, the staff use their hands to drive the card plate 33 to rotate counterclockwise around the rotating column 32 as the center until the card plate 33 is engaged with the puzzle block 44, The square fence 41 is connected to the movable fence 31, and then the two square fences 41 are placed next to each other. The staff manually drives the puzzle board 42 to rotate counterclockwise with the T-column 43 as the center until the puzzle board 42 is engaged with the puzzle block 44, and the two square fences 41 are connected. The above method is used to place the fence 11 and the movable fence 31 at the preset entrance and exit respectively, and connect them together through the square fence 41, thereby extending the overall length of the device to adapt to return air lanes of various specifications, and then place bags filled with sand or soil on the inner side of the angle brace 6, thereby solving the problem of inconvenience in entering and exiting vehicles and personnel, avoiding the problem of detours, and reducing costs.

[0074] While connecting the square fence 41, fence 11 and movable fence 31, the staff rotates the sealing cover 232 at the right end of the water pipe 231 clockwise to separate it from the water pipe 231, and then rotates the closing tubes 52 at the left and right ends of the water running rod 51 to separate them from the water running rod 51, and then rotates the sealing tube 25 to pass through the inner side of the support rod 74 on the right side of fence 11 and move to the outside of the water running rod 51, so that the water running rod 51 and the water pipe 231 are connected, and the sealing tube 25 forms a seal through the outer threads of the water running rod 51 and the water pipe 231. The staff rotates the closing tube 52 of the previous square fence 41 to pass through the inner side of the support rod 74 on the right side of the previous square fence 41 and move to the outside of the water running rod 51 of the next square fence 41, so that two adjacent water running rods 51 are connected, and the closing tube 52 forms a seal through the outer threads of each adjacent water running rod 51. Example

[0075] Based on the second embodiment, Figure 1-Figure 19 As shown, an embodiment of the present invention provides a spray curtain control device for a return air lane in a coal mine.

[0076] If the width of a single movable fence 31 cannot meet the requirements of entry and exit, a fence 11 and a sliding assembly 3 can be set up as a group in a mirror image on the original basis, wherein a puzzle block 44 is set on the front of one movable fence 31, and a T-shaped column 43 is set on the front of the other movable fence 31. The outer side of the T-shaped column 43 is equipped with a puzzle board 42 for easy splicing, thereby expanding the entry and exit width.

[0077] How it works: Initial state reference Figure 1, the staff place fence 11 and mobile fence 31 at the preset entrance and exit respectively, then place the bag filled with sand or soil on the inner side of the support rod 16, support fence 11 and mobile fence 31 on the ground, then place square fence 41 on the back of fence 11, the staff manually drives the jigsaw plate 42 to rotate counterclockwise around the T-shaped column 43 until the jigsaw plate 42 is engaged with the concave block 161, connects the square fence 41 with fence 11, then places the square fence 41 on the left side of the mobile fence 31, and the staff manually drives the card plate 33 to rotate counterclockwise around the rotating column 32 until the card plate 33 is connected with the puzzle piece 44, the square fence 41 is connected with the movable fence 31, and then the two square fences 41 are placed next to each other. The staff drives the puzzle plate 42 to rotate counterclockwise with the T-shaped column 43 as the center of the circle until the puzzle plate 42 is connected with the puzzle piece 44, and the two square fences 41 are connected. Using the above method, the fence 11 and the movable fence 31 are placed at the preset entrance and exit respectively, and connected together through the square fence 41, and then the bag filled with sand or soil is placed on the inner side of the corner brace 6 to form a closed area. While connecting the square fence 41, the fence 11 and the movable fence 31, the staff will guide the water The sealing cap 232 at the right end of the pipe 231 is rotated clockwise until it is separated from the water pipe 231, and then the closed pipes 52 at the left and right ends of the water rod 51 are rotated to be separated from the water rod 51, and then the sealing pipe 25 is rotated to penetrate through the inner side of the support rod 74 on the right side of the fence 11 and move to the outside of the water rod 51, so that the water rod 51 and the water pipe 231 are connected, and the sealing pipe 25 forms a seal through the outer threads of the water rod 51 and the water pipe 231. The staff rotates the closed pipe 52 of the previous square fence 41 to penetrate through the inner side of the support rod 74 on the right side of the previous square fence 41 and move to the water rod of the next square fence 41. 51, two adjacent water running rods 51 are connected, and the closing pipe 52 is sealed by the outer threads of the adjacent water running rods 51, and then the external water pump is connected to the water inlet valve 17 through the water pipe, and the water pump is turned on, and water enters the water inlet pipe 171 through the water inlet valve 17, and then the water flows into the water diversion groove 173 and the diversion groove 172 respectively, and the water flow entering the water diversion groove 173 will enter the right angle pipe 261 through the circular water groove 174, and finally be sprayed through the water nozzle 24, and the water flow entering the diversion groove 172 will enter the water guide pipe 231 and the water running rod 51 through the hollow column 21, and finally be sprayed through the water nozzle 24 to perform dust reduction spraying;

[0078] When the movable fence 31 needs to be moved, the staff rotates the puzzle plate 42 clockwise with the T-shaped column 43 as the center until the puzzle plate 42 is separated from the concave block 161, and then pushes the side rod 34 to drive the movable fence 31 to move along the outer side of the slide plate 12 to the right side of the movable fence 31 until the right side of the movable fence 31 contacts the left side of the support rod 16. At the same time, the movable fence 31 drives the teeth 38 to the right side of the movable fence 31 through the bottom plate 37. The teeth 38 pass through the groove 142. The meshing action drives the hollow rod 141 to rotate, and the hollow rod 141 drives the right-angle tube 261 to move upward through the thread, and the right-angle tube 261 drives the support rod 74 on the outside of the right-angle tube 261 to move upward. When the movable fence 31 moves to contact with the support rod 16, the movable fence 31 pushes the push rod 191 to move upward along the vertical hole plate 18 through the inclined groove plate 39, and the push rod 191 drives the block 192 to squeeze the spring to move into the inner side of the square groove 193, thereby increasing the unit area through which water flows.

[0079] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spray curtain control device for a return air lane in a coal mine, comprising a fence 1 (11), characterized in that: Two slide plates (12) are installed on one side of fence one (11), and sliding components (3) are sleeved on the outer sides of the two slide plates (12). A water inlet pipe (171) is provided at the bottom of fence one (11), and a water blocking component (19) is provided at the top of one end of the water inlet pipe (171). A rotating component (14) is provided in the middle of one side of fence one (11), and a water diversion component (2) is provided at the top of fence one (11). A connecting component (4) is provided on the side of fence one (11) away from the sliding component (3), and a supporting component (7) is provided on the connecting component (4) and one end of fence one (11); The sliding assembly (3) comprises a movable fence (31) sleeved on the outer sides of two slide plates (12), a bottom plate (37) being installed on one side of the movable fence (31), a plurality of teeth (38) being installed on one side of the bottom plate (37), and two teeth (38) close to the rightmost side of the bottom plate (37) being meshed with the groove (142), and the sliding assembly (3) slides on the outer sides of the two slide plates (12), so that the teeth (38) drive the hollow rod (141) to rotate, thereby driving the right-angle tube (261) to rise and fall; A rotating assembly (14) is assembled to convert the power of the rotation of the hollow rod (141) into power for driving the right-angle tube (261) to rise and fall through the threads on the inner side of the hollow rod (141). The rotating assembly (14) comprises a hollow rod (141). The outer side of the hollow rod (141) is provided with a groove (142) in an annular shape, and the groove (142) is located on the inner side of the square hole (15). The inner side of the hollow rod (141) is provided with a right-angle tube (261) through threads. Two limiting blocks (263) are fixed on the outer side of the right-angle tube (261). A limiting groove (264) is provided on the top of the circular water tank (174), and the two limiting blocks (263) are located on the inner side of the limiting groove (264). A plurality of water spray nozzles (24) are installed on the outer side of the right-angle tube (261). A water blocking assembly (19) is configured to drive the push rod (191) to move by moving the fence (31), so that the block (192) changes the shielding area of ​​the water inlet pipe (171); The connecting assembly (4) is assembled so that two connecting assemblies (4) are linked to each other by splicing the panels (42) and the blocks (44) to each other, the connecting assembly (4) and the fence (11) are connected to each other by splicing the panels (42) and the recessed blocks (161) to each other, and the connecting assembly (4) and the sliding assembly (3) are connected to each other by splicing the panels (42) and the card plates (33) to each other; A support assembly (7) is configured to provide support for the closed tube (52), the sealing tube (25) and the right-angle tube (261) through a support rod (74).

2. A coal mine return airway spray curtain control device as claimed in claim 1, characterized in that: The two slide plates (12) are both mounted on one side of the fence (11); a plurality of rollers (121) are rotatably mounted on the inner side of the slide plate (12); a guide groove plate (13) is provided on one side of the fence (11); a support rod (16) is installed on one side of the fence (11); a water inlet valve (17) is installed on one side of the fence (11); and the water inlet valve (17) is connected to a water inlet pipe (171); a base plate (111) is fixed on the side of the fence (11) opposite to the side on which the support assembly (7) is installed; and a base plate (111) is provided on one side of the base plate (111). A square hole (15) is provided, a diversion groove (172) is provided inside the base plate (111), a water diversion groove (173) is provided inside the base plate (111), the water diversion groove (173) is located on a side of the diversion groove (172) away from the support rod (16), and the water diversion groove (173) and the diversion groove (172) are both connected to the water inlet pipe (171), a round water groove (174) is provided on the top of the water diversion groove (173), and a vertical hole plate (18) is provided on one side of the fence (11), and the vertical hole plate (18) is located at the bottom of the guide groove plate (13).

3. A coal mine return airway spray curtain control device as claimed in claim 2, characterized in that: The water guide assembly (2) is configured to guide the water flow inside the base plate (111) to the nozzle through a hollow column (21) and a right-angle tube (261); the water guide assembly (2) comprises a hollow column (21), the hollow column (21) is mounted on the top of the base plate (111), and the inner side of the hollow column (21) is connected to the diversion groove (172); a support column (22) is fixed to the top of the fence (11), a water guide pipe (231) is fixed to the inner side of the support column (22), one end of the water guide pipe (231) is located on the inner side of the hollow column (21), and the inner side of the water guide pipe (231) is connected to the inner side of the hollow column (21); and a plurality of water spray nozzles (24) are mounted on the outer side of the water guide pipe (231).

4. A coal mine return airway spray curtain control device as claimed in claim 1, characterized in that: The hollow rod (141) is rotatably connected to the inner side of the circular water tank (174).

5. A coal mine return airway spray curtain control device as claimed in claim 4, characterized in that: The sliding assembly further comprises two slide slot plates (36), the two slide slot plates (36) being opened on one side of the bottom plate (37), and the two slide plates (12) being respectively located on the inner sides of the two slide slot plates (36), an inclined slot plate (39) being passed through and fixed to one end of the movable fence (31) close to the fence one (11), a side rod (34) being installed on the other side of the movable fence (31), and a wheel (35) being rotatably connected to the inner side of the side rod (34).

6. A coal mine return airway spray curtain control device as claimed in claim 1, characterized in that: The water blocking assembly (19) further comprises a clamping block (192); a square groove (193) is provided on the top of the water inlet pipe (171); the clamping block (192) is mounted on the inner side of the square groove (193) via a spring; a push rod (191) is mounted on one side of the clamping block (192); and the push rod (191) is located on the inner side of the vertical hole plate (18).

7. A coal mine return airway spray curtain control device as claimed in claim 1, characterized in that: The connection assembly (4) comprises a square fence (41), and a water drainage assembly (5) is installed on the top of the square fence (41); A water discharge assembly (5) is configured to discharge water from the water guide pipe (231) or one of the water discharge rods (51) connected thereto to the water spray nozzle (24) or another water discharge rod (51) connected thereto through the water discharge rod (51); Two support columns (54) are installed on the top of the square fence (41), a water running rod (51) is installed on the inner sides of the two support columns (54), and a plurality of water spray nozzles (24) are installed on the outer sides of the water running rod (51).

8. A coal mine return airway spray curtain control device as claimed in claim 1, characterized in that: The support assembly (7) comprises a base (71), the base (71) being mounted on one end of the square fence (41) and fence one (11), a square rod (72) being mounted on the top of the base (71), a hollow groove (73) being formed on the top of the square rod (72), a support rod (74) being placed inside the hollow groove (73), and limit blocks (75) being mounted on both sides of the support rod (74).

9. A coal mine return airway spray curtain control device as claimed in claim 7, characterized in that: A T-shaped column (43) is fixedly passed through one side of the square fence (41), a jigsaw plate (42) is rotatably mounted on the outer side of the T-shaped column (43), a jigsaw block (44) is fixedly mounted on one side of the square fence (41), the jigsaw plate (42) is located on the side of the jigsaw block (44) close to the fence one (11), an angle brace (6) is installed on one side of the square fence (41), the angle brace (6) is located at the bottom of the jigsaw block (44), a concave block (161) is installed on one side of the fence one (11), and the concave block (161) is located on the top of the support rod (16), and a rotating column (32) is installed on the other side of the movable fence (31), and a clamping plate (33) is rotatably mounted on the outer side of the rotating column (32).

10. A coal mine return airway spray curtain control device as claimed in claim 9, characterized in that: The right angle tube (261) is located at the outer side of one end of the fence (11) and is provided with a side cover (262) through a thread, and the side cover (262) is connected to the outer side of the right angle tube (261) through a rope. A sealing cover (232) is installed on the outer side of one end of the water pipe (231) through a thread, and the sealing cover (232) is connected to the outer side of the water pipe (231) through a rope. A sealing tube (25) is installed on the outer side of the water pipe (231) through a thread, and the sealing tube (25) is located on a side of the sealing cover (232) close to the sealing tube (25). A closed tube (52) is installed on the outer side of the water running rod (51) through a thread, and closed covers (53) are installed on the outer sides of both ends of the water running rod (51).

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