A ventilation and drainage device for underground coal mining and a method of using the device

Abstract

The present invention relates to the technical field of ventilation devices, and specifically to a ventilation and drainage device for underground coal mining and excavation, and a method for using the device, comprising a filter plate, a water storage tank, a water inlet pipe, a shell, a controller, an air inlet pipe, an annular seat, a movable seat, a drive component 1, a movable seat, a drive component 2, a mist nozzle, an air outlet nozzle, an air pump, an annular air cavity, an annular water cavity, a main air pipe, a connecting air pipe, a connecting water pipe, a telescopic hose 1, a telescopic hose 2, a water pump 1 and an annular water cavity; the present invention can adjust the position of the air outlet, thereby adjusting the dilutable air area, so that it is suitable for use in mine tunnels of different sizes, and has better applicability, and can also filter accumulated water such as surface infiltration water, rock pore water, and equipment cooling water and use them for cooling the mine tunnels, thereby ensuring the working environment in the mine tunnels and reducing the mining cost investment in the mine.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation devices, and in particular to an underground ventilation and drainage device for coal mining and an application method thereof. Background Art

[0002] The function of mine ventilation equipment is to deliver fresh air to the underground, dilute and discharge toxic and harmful gases, and adjust the required air volume, temperature and humidity underground to improve working conditions and ensure safe production. For example, the Chinese patent with the existing authorization announcement number CN115487634B discloses a mine ventilation equipment; including a purification mechanism, a water outlet, a No. 1 cleaning mechanism and a No. 2 cleaning mechanism; the present invention solves the problems that the filter plate of the purification element of the mine ventilation equipment is not easy to be disassembled and replaced during the use of the current mine ventilation equipment, and the operator is prone to inhaling harmful gases during the replacement process, causing harm to the health, and the manual replacement of the filter plate consumes manpower, and the replacement of the filter plate is not timely, which is easy to cause the toxic gas content inside the mine to exceed the standard and affect the health of the workers, and the concentration of some gases is too high and easy to explode, posing safety risks. The present invention improves the safety and timeliness of the replacement of the filter plate of the mine ventilation equipment.

[0003] However, the above equipment still has the following deficiencies in practical application: first, the position of the air outlet of the air outlet pipe in the above equipment is fixed, and the area of ​​air that can be diluted is small. It can be barely used for narrower mine tunnels, but the air dilution effect will be less than ideal when used for larger mine tunnels, and the applicability is poor; secondly, a large amount of surface seepage water, rock pore water, equipment cooling water and other accumulated water will be generated in the mine tunnel. These waters will seriously affect the mining operation if they stay in the mine tunnel. A large amount of electricity is required to use a pump to pump them out, which increases the mining cost of the mine and easily affects the work and transportation in the mine tunnel. As the mining depth increases, the power and volume of the mining equipment increase, and the heat generated by the mining intensity causes the temperature in the mine tunnel to continue to rise. If miners work in a high temperature environment for a long time, the risk of heatstroke, heat exhaustion and death will gradually increase. In order to reduce the temperature in the mine tunnel, most of the existing technologies pump cooling water from the ground at high pressure, and atomize the cooling water in the mine tunnel to cool it down. This cooling method has a better effect, but there are defects such as high energy consumption in the pumping process and a small fogging area. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned deficiencies and provide a coal mine underground ventilation and drainage device and a method of use, which can not only adjust the position of the air outlet, thereby adjusting the dilutable air area to make it suitable for use in mine tunnels of different sizes and have better applicability, but also filter surface seepage water, rock pore water, equipment cooling water and other accumulated water and use them for cooling the mine tunnels, thereby ensuring the working environment in the mine tunnels and reducing the mining cost investment in the mine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A ventilation and drainage device for underground coal mining, comprising a filter plate, a water storage tank installed below the filter plate, a water inlet pipe with one end extending into the water storage tank, a shell installed above the filter plate, a controller arranged on one side of the shell, and an air inlet pipe connected to the ground, the front of the shell is provided with an annular seat body and a plurality of movable seats, which are used to drive the plurality of movable seats to move closer to or away from each other, a plurality of movable seats arranged on the movable seat, which are used to drive the plurality of movable seats to move closer to or away from each other, a mist nozzle and an air outlet nozzle are arranged on the air inlet pipe, and a controller arranged on the front side of the shell is provided with a controller arranged on one side of the shell, and an air inlet pipe connected to the ground, wherein the controller is provided on the one side of the shell, and the air inlet pipe is provided with a controller arranged on the one side of the shell. There is an air pump, an annular air cavity and an annular water cavity are arranged in the annular seat body, the air inlet pipe is connected to the annular air cavity through the main air pipe, a plurality of connecting air pipes connected to the annular air cavity and a plurality of connecting water pipes connected to the annular water cavity are arranged on the annular seat body, a telescopic hose 1 connected to the mist nozzle is arranged on the connecting water pipe, a telescopic hose 2 connected to the air outlet nozzle is arranged on the connecting air pipe, a water pump 1 is arranged on the end of the water inlet pipe extending into the water tank, the other end of the water inlet pipe is connected to the annular water cavity, and the drive component 1, the drive component 2, the air pump and the water pump 1 are all electrically connected to the controller.

[0007] Furthermore, a circular protrusion is provided on the front side of the shell, and a plurality of guide straight grooves are provided on the circular protrusion, and the plurality of guide straight grooves are radially divergently distributed outwardly with the axis center of the circular protrusion as the center; the driving component 1 includes a rotating disk rotatably connected to the inside of the circular protrusion, a rotating shaft of the rotating disk is connected at one end, and a rotating bracket used for installing the rotating shaft, a motor 1 installed in the shell, a driving gear is drivingly connected to the output shaft of the motor 1, a driven gear is provided on the rotating shaft, and the driving gear is meshed with the driven gear, and a plurality of spiral guide grooves are provided on the rotating disk, and the plurality of spiral guide grooves are spirally divergently distributed outwardly with the axis center of the rotating disk as the center, a slider 1 is slidably connected in the spiral guide groove, and one end of the slider 1 passes through the guide straight groove and is connected to the moving seat, and the slider 1 is slidably connected to the guide straight groove.

[0008] Furthermore, a motor mounting seat is provided in the outer shell, the motor 1 is installed on the motor mounting seat, a cooling chamber is provided in the motor mounting seat, a liquid inlet pipe connected to the cooling chamber is provided on one side of the motor mounting seat, and a liquid outlet pipe connected to the cooling chamber is provided on the other side of the motor mounting seat, one end of the liquid inlet pipe extends to the water tank where water pump 2 is provided, a temperature sensing sensor is provided in the cooling chamber, and one end of the liquid outlet pipe is connected to the water tank.

[0009] Furthermore, two mounting plates are arranged opposite to the movable seat, and the two mounting plates are connected by two sliding rods. The movable seat includes a fixed seat fixed on the left mounting plate, and a plurality of adjustment seats slidably connected to the sliding rod. The fixed seat and the adjustment seat, and the adjustment seat and the adjustment seat are connected by a connecting rod assembly. The fixed seat and the adjustment seat are both provided with a mist nozzle and an air outlet nozzle; the second driving assembly includes a second motor fixed on the right mounting plate, and the output shaft of the second motor is drivingly connected to a lead screw, and the lead screw can rotatably connect the two mounting plates, and the back side of the adjustment seat farthest from the fixed seat is fixedly connected to a driving block, and an internal threaded hole is arranged on the driving block opposite to the lead screw.

[0010] Further, the connecting rod assembly includes a plurality of first connecting rods parallel to each other and a plurality of second connecting rods parallel to each other, the first connecting rods are cross-hinged with the corresponding second connecting rods and the two ends of the first connecting rods are hinged with the ends of the other two second connecting rods, the middle parts of the first connecting rod and the second connecting rod are rotatably connected by a rotating shaft 1, one end of the rotating shaft 1 is fixed on the adjusting seat, the ends of the first connecting rod and the second connecting rod are rotatably connected by a rotating shaft 2, and the rotating shaft 1 on the far left is fixed on the fixed seat.

[0011] Further, the filter plate includes a support plate, a groove arranged on the support plate, a dredging plate slidably connected to the groove up and down, the dredging plate and the bottom of the groove are connected by multiple springs, a plurality of upper filter holes are arranged on the dredging plate, a plurality of lower filter holes are arranged at the bottom of the groove, the upper filter holes and the lower filter holes are staggered and the aperture of the upper filter holes is larger than the aperture of the lower filter holes, a plurality of upper dredging columns are arranged at the bottom of the groove facing the upper filter holes, a plurality of lower dredging columns are arranged at the bottom of the dredging plate facing the lower filter holes, the inner diameter of the upper filter hole gradually increases from top to bottom, and the inner diameter of the lower filter hole gradually decreases from top to bottom.

[0012] Furthermore, one end of the water inlet pipe extending into the water tank is also connected to a filter.

[0013] A method for using a ventilation and drainage device in an underground coal mining pit, characterized in that it comprises the following steps:

[0014] Step 1: The accumulated water is filtered through the upper filter hole and the lower filter hole and then collected in the water storage tank for standby use;

[0015] Step 2: The outside air is drawn into the mine tunnel through the air inlet pipe, air pump, main air pipe, annular air cavity, connecting air pipe and air outlet nozzle to dilute the air in the mine tunnel; at the same time, water is atomized through water pump 1, water inlet pipe, annular water cavity, connecting water pipe and mist nozzle to cool the mine tunnel;

[0016] Step 3, motor 1 drives the driving gear to rotate, and the driving gear drives the rotating shaft and the rotating disk to rotate through the driven gear. During the rotation of the rotating disk, the slider 1 slides along the spiral guide groove and slides along the guide straight groove at the same time, so that multiple sliders 1 are close to or away from each other, thereby driving multiple moving seats to be close to or away from each other; at the same time, during the process of motor 2 driving the lead screw to rotate, the lead screw drives the driving block and the rightmost adjustment seat to move through the internal threaded hole. Since the first connecting rod is cross-hinged with the corresponding second connecting rod and the two ends of the first connecting rod are hinged with the ends of the other two second connecting rods, during the movement of the rightmost adjustment seat, multiple adjustment seats are driven to move rightward along the sliding rod, so that the adjustment seat is away from the fixed seat, and the spraying area of ​​the mist nozzle and the air outlet nozzle is adjusted;

[0017] Step 4: When the temperature sensing sensor detects that the temperature of the motor mounting base is too high, the water in the water tank can be pumped into the cooling chamber through the liquid inlet pipe and water pump 2 to cool the motor mounting base, thereby cooling the motor 1.

[0018] The beneficial effects of the present invention are:

[0019] 1. The outside air is drawn into the mine tunnel through the air inlet pipe, air pump, main air pipe, annular air cavity, connecting air pipe and air outlet nozzle to dilute the air in the mine tunnel;

[0020] Surface seepage water, rock pore water, equipment cooling water and other accumulated water are collected in the water storage tank through the filter plate. The water is atomized through the water pump, water inlet pipe, annular water cavity, connecting water pipe and fog nozzle for cooling in the mine tunnel, without consuming a lot of electricity and using a pump to extract it;

[0021] By driving component 1 to drive multiple moving seats to move closer to or away from each other, and driving component 2 to drive multiple movable seats to move closer to or away from each other, the distance between multiple mist nozzles and the distance between multiple air outlet nozzles are adjusted, so that the outlet area and the mist outlet area can be adjusted, and the applicability is better; the present invention can adjust the position of the air outlet, thereby adjusting the dilutable air area to make it suitable for use in mine tunnels of different sizes, and the applicability is better; it can also filter the accumulated water such as surface infiltration water, rock pore water, equipment cooling water, etc. and use it for cooling the mine tunnels, thereby ensuring the working environment in the mine tunnels and reducing the mining cost investment in the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention when in use;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention;

[0024] Figure 3 It is a front view of the present invention;

[0025] Figure 4 yes Figure 3 Sectional view at AA in the middle;

[0026] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0027] Figure 6 yes Figure 4 A partial enlarged view of point C in the middle;

[0028] Figure 7 It is a structural schematic diagram of the movable seat, the movable seat, the second driving component, the mist nozzle and the air outlet nozzle in the present invention;

[0029] Figure 8 It is a front view of the rotating disk of the present invention;

[0030] Fig. 9 yes Figure 4 A partial enlarged view of point D in the middle;

[0031] Figure numerals: filter plate 1; support plate 1001; groove 1002; spring 1003; dredging plate 1004; upper filter hole 1005; lower filter hole 1006; upper dredging column 1007; lower dredging column 1008; water storage tank 2; water inlet pipe 3; shell 4; circular protrusion 41; guide straight groove 411; motor mounting seat 42; cooling chamber 421; liquid inlet pipe 43; liquid outlet pipe 44; temperature sensing sensor 45; water pump 2 46; controller 5; air inlet pipe 6; annular seat body 7; annular air cavity 71; connecting air pipe 711; telescopic hose 2 7 12; annular water chamber 72; connecting water pipe 721; telescopic hose 1 722; moving seat 8; mounting plate 81; sliding rod 82; movable seat 9; fixed seat 91; adjusting seat 92; mist nozzle 10; air outlet nozzle 11; rotating disk 121; spiral guide groove 1211; rotating shaft 122; rotating bracket 123; motor 1 124; driving gear 125; driven gear 126; slider 1 127; motor 2 131; screw 132; driving block 133; first connecting rod 141; second connecting rod 142; rotating shaft 1 143; rotating shaft 2 144. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figure 1-8 As shown, a ventilation and drainage device for underground coal mining, including a filter plate 1, a water storage tank 2 installed below the filter plate 1, a water inlet pipe 3 with one end extending into the water storage tank 2, a shell 4 installed above the filter plate 1, a controller 5 arranged on one side of the shell 4, and an air inlet pipe 6 connected to the ground, the front of the shell 4 is provided with an annular seat body 7 and a plurality of movable seats 8, which are used to drive the plurality of movable seats 8 to move closer to or away from the driving component 1 adopted, a plurality of movable seats 9 arranged on the movable seat 8, which are used to drive the plurality of movable seats 9 to move closer to or away from the driving component 2 adopted, a mist nozzle 10 and an air outlet nozzle 11 are arranged on the movable seat 9, an air pump is arranged on the air inlet pipe 6, and the annular seat body 7 and a plurality of movable seats 8 are arranged on the front of the shell 4. An annular air cavity 71 and an annular water cavity 72 are provided in the annular seat body 7, the air inlet pipe 6 is connected to the annular air cavity 71 through the main air pipe, a plurality of connecting air pipes 711 connected to the annular air cavity 71 and a plurality of connecting water pipes 721 connected to the annular water cavity 72 are provided on the annular seat body 7, a telescopic hose 1 722 connected to the mist nozzle 10 is provided on the connecting water pipe 721, a telescopic hose 2 712 connected to the air outlet nozzle 11 is provided on the connecting air pipe 711, a water pump 1 is provided at one end of the water inlet pipe 3 extending into the water storage tank 2, and the other end of the water inlet pipe 3 is connected to the annular water cavity 72, and the drive component 1, the drive component 2, the air pump and the water pump 1 are all electrically connected to the controller 5.

[0034] When in use, outside air is sucked into the mine tunnel through the air inlet pipe 6, air pump, main air pipe, annular air cavity 71, connecting air pipe 711 and air outlet nozzle 11 to dilute the air in the mine tunnel; surface seepage water, rock pore water, equipment cooling water and other accumulated water are collected in the water storage tank 2 through the filter plate 1, and the water is atomized by the water pump 1, water inlet pipe 3, annular water cavity 72, connecting water pipe 721 and mist nozzle 10 for cooling in the mine tunnel, without consuming a lot of electricity to use a pump to extract; a plurality of mobile seats 8 are driven to move closer to or away from each other by a driving component 1 The driving component 2 drives the multiple movable seats 9 to move closer to or away from each other, and adjusts the distance between the multiple mist nozzles 10 and the distance between the multiple air outlet nozzles 11, so that the outlet area and the mist outlet area are adjustable, and the applicability is better; the present invention can adjust the position of the air outlet, thereby adjusting the dilutable air area, so that it is suitable for use in mine tunnels of different sizes, and has better applicability, and can also filter the accumulated water such as surface infiltration water, rock pore water, equipment cooling water, etc. and use it for cooling the mine tunnel, thereby ensuring the working environment in the mine tunnel and reducing the mining cost investment of the mine.

[0035] like Figure 1-8 As shown, a circular protrusion 41 is provided on the front of the shell 4, and a plurality of guide straight grooves 411 are provided on the circular protrusion 41, and the plurality of guide straight grooves 411 are radially divergently distributed outward with the axis of the circular protrusion 41 as the center; the driving component 1 includes a rotating disk 121 rotatably connected to the inside of the circular protrusion 41, a rotating shaft 122 connected to the rotating disk 121 at one end, a rotating bracket 123 used for installing the rotating shaft 122, and a motor 124 installed in the shell 4, a driving gear 125 is drivingly connected to the output shaft of the motor 124, a driven gear 126 is provided on the rotating shaft 122, and the driving gear 125 is meshed with the driven gear 126, and a plurality of spiral guide grooves 1211 are provided on the rotating disk 121, and the plurality of spiral guide grooves 1211 are meshed with the driven gear 126. The guide groove 1211 is spirally divergently distributed outward with the axis of the rotating disk 121 as the center, and a slider 127 is slidably connected in the spiral guide groove 1211. One end of the slider 127 passes through the guide straight groove 411 and is connected to the movable seat 8. The slider 127 is slidably connected to the guide straight groove 411. In this embodiment, the motor 124 drives the driving gear 125 to rotate, and the driving gear 125 drives the rotating shaft 122 and the rotating disk 121 to rotate through the driven gear 126. During the rotation of the rotating disk 121, the slider 127 slides along the spiral guide groove 1211 and slides along the guide straight groove 411 at the same time, so that multiple sliders 127 approach or move away from each other, thereby driving multiple movable seats 8 to approach or move away from each other, so that the spraying range of water mist and external air can be adjusted.

[0036] like Figure 1-8 As shown, a motor mounting base 42 is provided in the housing 4, and the motor 124 is installed on the motor mounting base 42. A cooling chamber 421 is provided in the motor mounting base 42, and a liquid inlet pipe 43 connected to the cooling chamber 421 is provided on one side of the motor mounting base 42, and a liquid outlet pipe 44 connected to the cooling chamber 421 is provided on the other side of the motor mounting base 42. One end of the liquid inlet pipe 43 extends to the water tank 2 where a water pump 2 46 is provided, and a temperature sensing sensor 45 is provided in the cooling chamber 421, and one end of the liquid outlet pipe 44 is connected to the water tank 2. In this embodiment, when the temperature sensing sensor 45 detects that the temperature of the motor mounting base 42 is too high, the water in the water tank 2 can be pumped into the cooling chamber 421 through the liquid inlet pipe 43 and the water pump 2 46 to cool the motor mounting base 42, thereby cooling the motor 124.

[0037] like Figure 1-8As shown, two mounting plates 81 are arranged opposite to each other on the movable seat 8, and the two mounting plates 81 are connected by two slide bars 82. The movable seat 9 includes a fixed seat 91 fixed on the left mounting plate 81, and a plurality of adjustment seats 92 slidably connected to the slide bars 82. The fixed seat 91 and the adjustment seat 92, and the adjustment seat 92 and the adjustment seat 92 are connected by a connecting rod assembly. The fixed seat 91 and the adjustment seat 92 are both provided with a mist nozzle 10 and an air outlet nozzle 11; the driving assembly 2 includes a motor 2 131 fixed on the right mounting plate 81, and the output of the motor 2 131 A lead screw 132 is drivingly connected to the output shaft, and the lead screw 132 can be rotatably connected to the two mounting plates 81. A driving block 133 is fixedly connected to the back of the adjustment seat 92 farthest from the fixed seat 91, and an internal threaded hole is provided on the driving block 133 opposite to the lead screw 132. In this embodiment, during the process of the motor 2 131 driving the lead screw 132 to rotate, the lead screw 132 drives the driving block 133 and the rightmost adjustment seat 92 to move through the internal threaded hole, and the rightmost adjustment seat 92 drives other adjustment seats 92 to move along the slide rod 82 through the connecting rod assembly, so that multiple adjustment seats 92 are moved away from the fixed seat 91 from each other.

[0038] like Figure 1-8 As shown, the connecting rod assembly includes a plurality of mutually parallel first connecting rods 141 and a plurality of mutually parallel second connecting rods 142, the first connecting rod 141 is cross-hinged with the corresponding second connecting rod 142 and the two ends of the first connecting rod 141 are hinged with the ends of the other two second connecting rods 142, the middle parts of the first connecting rod 141 and the second connecting rod 142 are rotatably connected through a rotating shaft 143, one end of the rotating shaft 143 is fixed on the adjusting seat 92, the ends of the first connecting rod 141 and the second connecting rod 142 are rotatably connected through a rotating shaft 2 144, and the leftmost rotating shaft 143 is fixed on the fixing seat 91; In this embodiment, during the process of motor 2 131 driving the lead screw 132 to rotate, the lead screw 132 drives the drive block 133 and the rightmost adjustment seat 92 to move through the internal threaded hole. Since the first connecting rod 141 is cross-hinged with the corresponding second connecting rod 142 and the two ends of the first connecting rod 141 are hinged with the ends of the other two second connecting rods 142, during the movement of the rightmost adjustment seat 92, multiple adjustment seats 92 are driven to move right along the sliding rod 82, so that the adjustment seat 92 is away from the fixed seat 91, and the spraying area of ​​the mist nozzle 10 and the air outlet nozzle 11 is adjusted to make it suitable for use in mine tunnels of different sizes, and the cooling and ventilation effects are better.

[0039] like Figure 1-8As shown, the filter plate 1 includes a support plate 1001, a groove 1002 arranged on the support plate 1001, a dredging plate 1004 slidably connected to the groove 1002, the dredging plate 1004 and the bottom of the groove 1002 are connected by multiple springs 1003, a plurality of upper filter holes 1005 are arranged on the dredging plate 1004, a plurality of lower filter holes 1006 are arranged at the bottom of the groove 1002, the upper filter holes 1005 and the lower filter holes 1006 are staggered and the aperture of the upper filter holes 1005 is larger than the aperture of the lower filter holes 1006, a plurality of upper dredging columns 1007 are arranged at the bottom of the groove 1002 facing the upper filter holes 1005, and a plurality of lower dredging columns 1007 are arranged at the bottom of the dredging plate 1004 facing the lower filter holes 1006 Through the column 1008, the inner diameter of the upper filter hole 1005 gradually increases from top to bottom, and the inner diameter of the lower filter hole 1006 gradually decreases from top to bottom; in this embodiment, during long-term use, the upper filter hole 1005 and the lower filter hole 1006 are easily blocked. When absentees or vehicles pass through the dredging plate 1004, the spring 1003 is compressed, and the upper dredging column 1007 is inserted into the upper filter hole 1005. At the same time, the lower dredging column 1008 is inserted into the lower filter hole 1006 to dredge the upper filter hole 1005 and the lower filter hole 1006, thereby ensuring the filtering effect of the filter plate 1; large particles of impurities in accumulated water such as surface infiltration water, rock pore water, and equipment cooling water are filtered through the upper filter hole 1005 and the lower filter hole 1006, and the filtered water flows into the water storage tank 2.

[0040] like Figure 1-8 As shown, one end of the water inlet pipe 3 extending into the water storage tank 2 is also connected to a filter; in this embodiment, the accumulated water is filtered by the filter to prevent dust and impurities in the accumulated water from clogging the mist nozzle 10.

[0041] A method for using a ventilation and drainage device in an underground coal mining pit, characterized in that it comprises the following steps:

[0042] Step 1: The accumulated water is filtered through the upper filter hole 1005 and the lower filter hole 1006 and then collected in the water storage tank 2 for standby use;

[0043] Step 2: external air is drawn into the mine tunnel through the air inlet pipe 6, the air pump, the main air pipe, the annular air cavity 71, the connecting air pipe 711 and the air outlet nozzle 11 to dilute the air in the mine tunnel; at the same time, water is atomized through the water pump 1, the water inlet pipe 3, the annular water cavity 72, the connecting water pipe 721 and the mist nozzle 10 to cool the mine tunnel;

[0044] Step 3, the motor 124 drives the driving gear 125 to rotate, and the driving gear 125 drives the rotating shaft 122 and the rotating disk 121 to rotate through the driven gear 126. During the rotation of the rotating disk 121, the slider 127 slides along the spiral guide groove 1211 and slides along the guide straight groove 411 at the same time, so that the multiple sliders 127 are close to or away from each other, thereby driving the multiple moving seats 8 to be close to or away from each other; at the same time, during the rotation of the lead screw 132 driven by the motor 2 131, the lead screw 132 drives the driving block 133 and the rightmost adjustment seat 92 to move through the internal threaded hole. Since the first connecting rod 141 is cross-hinged with the corresponding second connecting rod 142 and the two ends of the first connecting rod 141 are hinged with the ends of the other two second connecting rods 142, during the movement of the rightmost adjustment seat 92, multiple adjustment seats 92 are driven to move rightward along the slide rod 82, so that the adjustment seat 92 is away from the fixed seat 91, and the spraying area of ​​the mist nozzle 10 and the air outlet nozzle 11 is adjusted;

[0045] Step 4: When the temperature sensing sensor 45 detects that the temperature of the motor mounting base 42 is too high, the water in the water storage tank 2 can be pumped into the cooling chamber 421 through the liquid inlet pipe 43 and the water pump 2 46 to cool the motor mounting base 42 and thus cool the motor 1 124.

[0046] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the scope defined by the spirit of the present invention.

Claims

1. A ventilation and drainage device for underground coal mining, characterized in that: The invention comprises a filter plate (1), a water storage tank (2) installed below the filter plate (1), a water inlet pipe (3) with one end extending into the water storage tank (2), a shell (4) installed above the filter plate (1), a controller (5) arranged on one side of the shell (4), and an air inlet pipe (6) connected to the ground, wherein the front of the shell (4) is provided with an annular seat body (7) and a plurality of movable seats (8) for driving the plurality of movable seats (8) to move closer to or away from a driving component 1 adopted, a plurality of movable seats (9) arranged on the movable seat (8) for driving the plurality of movable seats (9) to move closer to or away from a driving component 2 adopted, a mist nozzle (10) and an air outlet nozzle (11) are arranged on the movable seat (9), an air pump is arranged on the air inlet pipe (6), and a control unit (11) is arranged inside the annular seat body (7). An annular air cavity (71) and an annular water cavity (72) are provided. The air inlet pipe (6) is connected to the annular air cavity (71) through a main air pipe. The annular seat body (7) is provided with a plurality of connecting air pipes (711) connected to the annular air cavity (71) and a plurality of connecting water pipes (721) connected to the annular water cavity (72). The connecting water pipe (721) is provided with a telescopic hose (722) connected to the mist nozzle (10). The connecting air pipe (711) is provided with a telescopic hose (712) connected to the air outlet nozzle (11). A water pump (1) is provided at one end of the water inlet pipe (3) extending into the water storage tank (2). The other end of the water inlet pipe (3) is connected to the annular water cavity (72). The driving component (1), the driving component (2), the air pump and the water pump (1) are all electrically connected to the controller (5).

2. The underground ventilation and drainage device for coal mining according to claim 1, characterized in that: The front surface of the housing (4) is provided with a circular protrusion (41), and the circular protrusion (41) is provided with a plurality of straight guide grooves (411), and the plurality of straight guide grooves (411) are radially distributed outwardly with the axis of the circular protrusion (41) as the center; the driving component 1 comprises a rotating disk (121) rotatably connected to the inside of the circular protrusion (41), a rotating shaft (122) connected to the rotating disk (121) at one end, a rotating bracket (123) used for mounting the rotating shaft (122), and a motor 1 (124) installed in the housing (4), and an output shaft of the motor 1 (124) is drivingly connected to a driving gear A wheel (125) is provided on the rotating shaft (122), a driven gear (126) is provided on the driving gear (125) and meshes with the driven gear (126), a plurality of spiral guide grooves (1211) are provided on the rotating disk (121), the plurality of spiral guide grooves (1211) are spirally distributed outwardly with the axis of the rotating disk (121) as the center, a slider 1 (127) is slidably connected in the spiral guide groove (1211), one end of the slider 1 (127) passes through the guide straight groove (411) and is connected to the moving seat (8), and the slider 1 (127) is slidably connected to the guide straight groove (411).

3. The underground ventilation and drainage device for coal mining according to claim 2, characterized in that: A motor mounting seat (42) is provided in the housing (4), the motor 1 (124) is mounted on the motor mounting seat (42), a cooling chamber (421) is provided in the motor mounting seat (42), a liquid inlet pipe (43) connected to the cooling chamber (421) is provided on one side of the motor mounting seat (42), and a liquid outlet pipe (44) connected to the cooling chamber (421) is provided on the other side of the motor mounting seat (42), one end of the liquid inlet pipe (43) extends to the water storage tank (2) where a water pump 2 (46) is provided, a temperature sensing sensor (45) is provided in the cooling chamber (421), and one end of the liquid outlet pipe (44) is connected to the water storage tank (2).

4. The underground ventilation and drainage device for coal mining according to claim 3 is characterized in that: Two mounting plates (81) are arranged opposite to each other on the movable seat (8), and the two mounting plates (81) are connected by two sliding rods (82). The movable seat (9) comprises a fixed seat (91) fixed on the left mounting plate (81), and a plurality of adjustment seats (92) slidably connected to the sliding rods (82). The fixed seat (91) and the adjustment seat (92) are connected to each other by connecting rod assemblies. The fixed seat (91) and the adjustment seat (92) are both provided with A mist nozzle (10) and an air outlet nozzle (11) are arranged; the second drive component comprises a second motor (131) fixed on the right mounting plate (81); a lead screw (132) is drivingly connected to the output shaft of the second motor (131); the lead screw (132) is rotatably connected to the two mounting plates (81); a drive block (133) is fixedly connected to the back side of the adjustment seat (92) farthest from the fixed seat (91); and an internal threaded hole is arranged on the drive block (133) opposite to the lead screw (132).

5. The underground ventilation and drainage device for coal mining according to claim 4, characterized in that: The connecting rod assembly comprises a plurality of mutually parallel first connecting rods (141) and a plurality of mutually parallel second connecting rods (142); the first connecting rod (141) is cross-hinged with the corresponding second connecting rod (142), and the two ends of the first connecting rod (141) are hinged with the ends of the other two second connecting rods (142); the middle parts of the first connecting rod (141) and the second connecting rod (142) are rotatably connected via a rotating shaft 1 (143); one end of the rotating shaft 1 (143) is fixed on the adjusting seat (92); the ends of the first connecting rod (141) and the second connecting rod (142) are rotatably connected via a rotating shaft 2 (144); and the leftmost rotating shaft 1 (143) is fixed on the fixing seat (91).

6. The underground ventilation and drainage device for coal mining according to claim 1, characterized in that: The filter plate (1) comprises a support plate (1001), a groove (1002) arranged on the support plate (1001), a dredging plate (1004) slidably connected to the groove (1002) up and down, the dredging plate (1004) and the bottom of the groove (1002) are connected via a plurality of springs (1003), a plurality of upper filter holes (1005) are arranged on the dredging plate (1004), a plurality of lower filter holes (1006) are arranged at the bottom of the groove (1002), and the upper filter holes (1005) are connected to the bottom of the groove (1002). ) is staggered with the lower filter hole (1006) and the aperture of the upper filter hole (1005) is larger than the aperture of the lower filter hole (1006); a plurality of upper dredging columns (1007) are arranged at the bottom of the groove (1002) directly opposite the upper filter hole (1005); a plurality of lower dredging columns (1008) are arranged at the bottom of the dredging plate (1004) directly opposite the lower filter hole (1006); the inner diameter of the upper filter hole (1005) gradually increases from top to bottom, and the inner diameter of the lower filter hole (1006) gradually decreases from top to bottom.

7. The underground ventilation and drainage device for coal mining according to claim 1, characterized in that: One end of the water inlet pipe (3) extending into the water storage tank (2) is also connected to a filter.

8. A method for using a ventilation and drainage device for underground coal mining according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: the accumulated water is filtered through the upper filter hole (1005) and the lower filter hole (1006) and then collected in the water storage tank (2) for standby use; Step 2: external air is drawn into the mine tunnel through the air inlet pipe (6), the air pump, the main air pipe, the annular air cavity (71), the connecting air pipe (711) and the air outlet nozzle (11) to dilute the air in the mine tunnel; at the same time, water is atomized through the water pump 1, the water inlet pipe (3), the annular water cavity (72), the connecting water pipe (721) and the mist outlet nozzle (10) to cool the mine tunnel; Step 3: The motor 1 (124) drives the driving gear (125) to rotate. The driving gear (125) drives the rotating shaft (122) and the rotating disk (121) to rotate through the driven gear (126). During the rotation of the rotating disk (121), the slider 1 (127) slides along the spiral guide groove (1211) and slides along the guide straight groove (411), so that the plurality of sliders 1 (127) move closer to or farther from each other, thereby driving the plurality of moving seats (8) to move closer to or farther from each other. At the same time, the motor 2 (131) drives the lead screw (132) to rotate. In the embodiment, the lead screw (132) drives the driving block (133) and the rightmost adjustment seat (92) to move through the internal threaded hole. Since the first connecting rod (141) is cross-hinged with the corresponding second connecting rod (142) and the two ends of the first connecting rod (141) are hinged with the ends of the other two second connecting rods (142), during the movement of the rightmost adjustment seat (92), multiple adjustment seats (92) are driven to move rightward along the sliding rod (82), so that the adjustment seat (92) is away from the fixed seat (91), and the spraying area of ​​the mist nozzle (10) and the air outlet nozzle (11) is adjusted; Step 4: When the temperature sensing sensor (45) detects that the temperature of the motor mounting base (42) is too high, water in the water storage tank (2) can be pumped into the cooling chamber (421) through the liquid inlet pipe (43) and the water pump 2 (46) to cool the motor mounting base (42), thereby cooling the motor 1 (124).

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