Multi-purpose automatic dustproof spraying device for coal mine

Abstract

The invention relates to a multi-purpose automatic dustproof spraying device for a coal mine, and discloses a multi-purpose automatic dustproof spraying device for the coal mine, which is used for filtering impurities in a water source through a filtering assembly and carrying out omnibearing dust fall in a roadway through a plurality of groups of spraying assemblies. The device is characterized in that the device is composed of a filtering assembly and a spraying assembly, the filtering assembly is composed of a filtering box, a water inlet pipe, a four-way pipe, an anti-explosion electromagnetic valve, a water flow dispersing block, a communicating water pipe, a water flow passing ball, a transmission gear, a hydraulic cylinder, a straight gear, a water flow partition plate, a filtering partition strip and an impurity storage net, and the filtering box is of a cuboid structure; the top end of the filter box is of an opening structure, a water inlet pipe is fixedly arranged on one side face of the filter box, the other side face of the filter box is connected with a four-way pipe, the water inlet pipe is connected with an anti-explosion electromagnetic valve, the water inlet pipe is communicated with the four-way pipe through the filter box, and a water flow dispersing block is fixedly arranged in the position, close to one side face, of the filter box; the water flow dispersing block is of a T-shaped structure.

Description

Technical Field

[0001] The invention discloses a multi-purpose automatic dust-proof spray device for coal mines, which is used for reducing dust in mining operations, and belongs to the technical field of coal mine dust removal, and in particular, relates to a multi-purpose automatic dust-proof spray device for coal mines, which is used for filtering impurities in a water source through a filtering component and for performing all-round dust reduction in a tunnel through multiple groups of spray components. Background Art

[0002] During the mining and transportation of coal, a large amount of coal dust will be generated due to mining friction, belt friction, coal loading and unloading and other reasons. In order to reduce the concentration of coal dust, the conventional dust reduction measure is to install a manually controlled purification spray system on the main conveyor belt conveyor. However, this system has obvious disadvantages. The ball valve used in this system must be manually operated, which is not only inconvenient, but also there is a problem that the operator may forget to turn on and off the spray device in time. If the spray dust reduction device is not turned on in time during the operation of the main belt, the large dust will seriously endanger the health and life of the workers. If the spray dust reduction device is not turned off after the main belt operation ends, it will cause a huge waste of water resources. In addition, the existing dust reduction structure can usually only reduce dust in the middle and lower parts of the tunnel, and cannot effectively reduce dust in the entire tunnel. The coal dust will move to various areas of the tunnel with the wind flow in the tunnel. The top of the tunnel is often also a place where coal dust easily accumulates. The long-term accumulation of coal dust will not only affect the air quality, but may also cause safety hazards under certain conditions, such as increasing the risk of explosion.

[0003] Publication No. CN220890245U discloses an intelligent dust control system for coal mine tunnels, which includes a dust concentration sensor, a pyrolytic sensor 1, a spray device and a pyrolytic sensor 2 installed sequentially from the upwind side to the downwind side, the spray device includes a water curtain pipeline, a water supply pipeline and a spray control box, an electromagnetic valve is installed between the water curtain pipeline and the water supply pipeline, the electromagnetic valve is electrically connected to the spray control box, and the dust concentration sensor and the pyrolytic sensor are signal-connected to the spray control box; Publication No. CN115419453A discloses an underground spray dust suppression device, which includes a supporting moving component and a spray dust suppression component. The supporting moving assembly includes a base plate, moving wheels, a cylinder and a lifting plate, the moving wheels are installed on the lower surface of the base plate, the cylinder barrel end is installed on the upper surface of the base plate, and the cylinder rod end is fixedly connected to the lifting plate; the spray dust suppression assembly includes a water tank, an electric pump, and a spray dust suppression component, the water tank is arranged on the upper surface of the lifting plate, the electric pump is installed on the top upper surface of the water tank, the water inlet end of the electric pump extends to the inside of the water tank, and the two spray dust suppression components are respectively arranged at the two ends of the top of the water tank and are connected to the outlet end of the electric pump. The underground spray dust suppression device relies on workers to manually operate it to open and close, which not only takes up workers' working time, but also requires them to perform this task on time. However, due to the intervention of human factors, this process is often affected by forgetting to operate. When workers fail to open the spray dust suppression device on time, the high concentration of dust underground will seriously threaten the health and even life safety of workers. When workers fail to close the spray dust suppression device on time, it will cause a huge waste of water resources and may cause the ground in the tunnel to be muddy and the humidity in the tunnel to be too high, which brings great inconvenience to the miners' work and cannot effectively reduce dust on the top of the tunnel. The long-term accumulated coal dust will not only affect the air quality, but may also cause safety hazards under certain conditions, such as increasing the risk of explosion. Summary of the invention

[0004] In order to improve the above situation, the multi-purpose automatic dust-proof spray device for coal mines of the present invention provides a multi-purpose automatic dust-proof spray device for coal mines which filters impurities in a water source through a filtering component and performs all-round dust reduction in the tunnel through multiple groups of spray components.

[0005] The multi-purpose automatic dust-proof spray device for coal mines of the present invention is realized as follows: the multi-purpose automatic dust-proof spray device for coal mines of the present invention is composed of a filter component and a spray component. The filter assembly is composed of a filter box, a water inlet pipe, a four-way pipe, an explosion-proof solenoid valve, a water flow dispersion block, a connecting water pipe, a water flow ball, a transmission gear, a hydraulic cylinder, a spur gear, a water flow separator, a filter separator and an impurity collection net. The filter box is a rectangular parallelepiped structure with an open top. A water inlet pipe is fixedly arranged on one side of the filter box, and the other side of the filter box is connected to a four-way pipe. The water inlet pipe is connected to the explosion-proof electromagnetic valve, and the water inlet pipe is connected to the four-way pipe through the filter box. A water flow dispersion block is fixedly arranged near one side of the filter box. The water flow dispersion block is in a T-shaped structure. The water flow dispersion block is composed of a horizontal plate and a vertical plate. The horizontal plate of the water flow dispersion block is a hollow structure. A connecting water pipe is provided in the vertical plate of the water flow dispersion block. The connecting water pipe is in a T-shaped structure. One end of the connecting water pipe is connected to the water inlet pipe, and the other two ends of the connecting water pipe respectively penetrate the vertical plate of the water flow dispersion block and communicate with the inside of the filter box. A water flow ball is arranged inside the part of the connecting water pipe on the same straight line. The water flow ball is a spherical structure with a hole in the middle. The bottom end of the water flow ball is rotatably connected to the vertical plate of the water flow dispersion block, and the top end of the water flow ball passes through the vertical plate of the water flow dispersion block and is fixedly connected to the transmission gear. There are two water flow passing balls, and the two water flow passing balls are symmetrically arranged about the connecting water pipe. The central axes of the holes of the two water flow passing balls are both placed horizontally and arranged perpendicularly to each other. The transmission gear is placed in the hollow structure of the water flow dispersion block transverse plate. The hollow structure of the water flow dispersion block transverse plate is equipped with a hydraulic cylinder, one end of which is fixedly connected to the inner side of the water flow dispersion block, and the other end of which is fixedly connected to a spur gear, which is slidably connected to the water flow dispersion block, and which meshes with the transmission gear. The water flow separator is placed in the filter box, and the water flow separator is in a T-shaped structure. The water flow separator is composed of a horizontal plate and a vertical plate. One end of the horizontal plate of the water flow separator is fixedly connected to the middle of the vertical plate, and the other end of the horizontal plate of the water flow separator is fixedly connected to the side of the water flow dispersion block. The two ends of the vertical plate of the water flow separator are respectively fixedly connected to the other two sides of the filter box. The vertical plate of the water flow separator is at a certain distance from the other side of the filter box. Two water holes are opened on the vertical plate of the water flow separator, and a one-way water valve is correspondingly arranged on each of the water holes. One end of the filter dividing strip is fixedly connected to the top of the side of the water flow dividing plate transverse plate, and the other end of the filter dividing strip is fixedly connected to the top of the other two side surfaces of the filter box. The filter dividing strips are provided in two groups, and the two groups of the filter dividing strips are symmetrically arranged about the water flow dividing plate. There are multiple filter dividing strips in each group, and the multiple filter dividing strips are arranged along the direction of the water flow dividing plate transverse plate, and from the water flow dividing plate to the water flow dispersion block, the distance between the filter dividing strip and the water flow dividing plate transverse plate, the distance between the filter dividing strip and the filter dividing strip, and the distance between the filter dividing strip and the water flow dispersion block gradually increase. The impurity collecting net is slidably connected to the filter box, and the impurity collecting net is provided with two groups. The two groups of impurity collecting nets are symmetrically arranged with respect to the water flow dividing plate. The number of the impurity collecting nets is two more than the filter dividing strips. The impurity collecting nets correspond to the gaps between the vertical plates of the water flow dividing plate, the filter dividing strips, and the water flow dispersion blocks one by one. The impurity collecting net is in a rectangular parallelepiped structure. The width of the impurity collecting net is slightly smaller than the distance between the corresponding gaps between the vertical plates of the water flow dividing plate, the filter dividing strips, and the water flow dispersion blocks. The impurity collecting net is an open structure toward the water flow dispersion block. A plurality of filter holes are evenly distributed on the side of the impurity collecting net opposite to the opening, and the diameter of the filter holes gradually decreases from the water flow dispersion block toward the water flow dividing plate. The spray assembly is composed of a water pipe, a special-shaped connecting pipe, an arc-shaped water pipe, a sealing cone, a water pipe connecting pipe, a sealing connecting pipe, a positioning connecting plate, a water pipe reinforcing rib, a nozzle and an auxiliary nozzle. One end of the water delivery pipe is connected to a connecting port of a four-way pipe, and the other end of the water delivery pipe is connected to one end of a special-shaped connecting pipe. The arc-shaped water pipe is connected to the water pipe through the special-shaped connecting pipe. The joints between the four-way pipe and the water pipe, the water pipe and the special-shaped connecting pipe, and the special-shaped connecting pipe and the arc-shaped water pipe are wrapped with sealing tape. The other two ends of the four-way pipe can be connected to another four-way pipe through a water pipe, so that multiple groups of spray components can be connected. The arc-shaped water pipe is an arc-shaped tubular structure, the inner diameters of the two ends of the arc-shaped water pipe are slightly larger than the inner diameter of the middle part, and the arc-shaped water pipe is made of PVC. Each of the water delivery pipes corresponds to a plurality of arc-shaped water delivery pipes, one end of the first arc-shaped water delivery pipe is plug-in connected to the special-shaped connecting pipe, and the other end of the last arc-shaped water delivery pipe is plug-in connected and provided with a sealing cone. The cross-sectional diameter of the sealing cone from one end to two-thirds is slightly smaller than the inner diameter of the arc-shaped water pipe at both ends. The sealing cone is made of rubber. Each two of the arc-shaped water pipes are connected by a water pipe connecting pipe, which is an arc-shaped tubular structure and has the same curvature as the arc-shaped water pipe. The diameter of the outer side surface in the middle of the water pipe connecting pipe is larger than the diameter of the outer side surfaces at both ends and is roughly the same as the diameter of the outer side surface of the arc-shaped water pipe. A plurality of sealing rubber rings are fixed at the smaller diameter of the outer side surface of the water pipe connecting pipe. The two ends of the water pipe connecting pipe are respectively connected to an arc-shaped water pipe by plugging and unplugging. The sealing connecting pipe sleeve is placed at the intersection of two arc-shaped water pipes. The positioning connecting plate is fixedly connected to the top surface of the lane by screws, and the intersection of the two arc-shaped water pipes is clamped between the positioning connecting plate and the lane. The side of the arc-shaped water pipe is threaded with water pipe reinforcing ribs. The nozzle is threadedly connected to the arc-shaped water pipe, and each arc-shaped water pipe corresponds to a group of nozzles, and the nozzles are arranged along the winding direction of the reinforcing ribs of the water pipe, and there is no nozzle on the arc-shaped outer side of the arc-shaped water pipe. The nozzle is cylindrical in structure, one end of the nozzle is threadedly connected to the arc-shaped water pipe, and the inner side surface of the other end of the nozzle has a smaller diameter. An auxiliary nozzle is fixedly arranged on the side of the nozzle. The auxiliary nozzle is in a cylindrical structure. One end of the auxiliary nozzle is in an arc structure and fits the side of the nozzle. The inner side of the other end of the auxiliary nozzle has a smaller diameter. A plurality of the auxiliary nozzles are arranged equidistantly along the circumference of the nozzle. The four-way pipe interface connected to the filter box has a built-in flow meter. The multi-purpose automatic dust-proof spray device for coal mines of the present invention further comprises a water volume analysis system, which comprises a signal converter, a data processor and a controller. The signal converter is placed on the filter box, and the data processor is placed on the filter box. The flow meter is connected to the signal converter via a data line. The hydraulic cylinder is connected to the controller via a data transmission line. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the controller via a data transmission line. The signal converter can receive signals from the water flow meter and convert these non-standard signals or signals that are not convenient for subsequent processing, such as amplifying weak analog signals and converting them into standard digital signals. The data processor and the signal converter perform information exchange, When the water volume analysis system is executed, the following steps are mainly implemented: the water inlet pipe is connected to the water source, and the entry of water flow can be controlled by an explosion-proof solenoid valve. The explosion-proof solenoid valve can be linked to the power supply of the coal mine conveyor belt or not. When linked, the device can be opened synchronously when the coal mine is transported, so that the dust reduction work can be started and closed in time while avoiding water resource waste. When not linked, the switch of the dust reduction device can be flexibly controlled according to the concentration of dust in the tunnel. Since the two water flows are arranged vertically through the central axis of the hole on the ball, when one end of the connecting water pipe is connected to the filter box, the other end can be closed, and the water flow can enter one side of the horizontal plate of the water flow dividing plate through the connecting water pipe. The water flow can filter impurities in the water through multiple impurity collection nets to avoid the passage of impurities. The water after filtering out impurities finally flows into the four-way pipe through the one-way water valve on the water flow dividing plate. The treated water flows into the arc water pipe through the water pipe, and finally the water is sprayed out in multiple directions through multiple nozzles and auxiliary nozzles on the arc water pipe, so as to carry out all-round dust reduction in the lane. At the same time, the flow meter in the four-way pipe can monitor the water flow in real time. When the flow is less than the preset range, the hydraulic cylinder drives the spur gear to slide, thereby driving the water flow ball below to rotate through the transmission gear, so that water flows out through the other end of the connected water pipe, and the water is filtered through the impurity collection net on the other side of the horizontal plate of the water flow dividing plate. At the same time, the impurity collection net on one side of the horizontal plate of the water flow dividing plate is removed to clean the internal impurities, so as to achieve continuous work. Furthermore, the nozzle is replaced with a multi-directional nozzle, which has a cylindrical structure, one end of which is threadedly connected to the arc-shaped water pipe, and the other end is an open structure. The cross-sectional diameter of the multi-directional nozzle remains unchanged from one end to one-half, and increases and then decreases in an arc shape from one-half to the other end. The other end of the multi-directional nozzle is an arc structure, and the multi-directional nozzle is evenly provided with a plurality of drainage holes from one-half to the other end. Furthermore, a plurality of heat dissipation holes are formed on the top surface of the water flow dispersion block transverse plate, and the plurality of heat dissipation holes are evenly distributed on the top surface of the water flow dispersion block. Furthermore, a handle is rotatably connected to the top surface of the impurity receiving net, the handle is in a U-shaped structure, both ends of the handle are rotatably connected to the top surface of the impurity receiving net, and the handle is made of PVC material. Beneficial Effects

[0006] 1. The explosion-proof solenoid valve in the device can be linked or not linked to the power supply of the coal mine conveyor belt. When linked, it can be started and closed synchronously with the conveyor belt, and the dust reduction work can be started in time to avoid excessive dust in the tunnel due to negligence of the staff. After the conveyor belt stops running, the dust reduction device will also be closed, avoiding the waste of water resources caused by forgetting to close it, and improving the utilization efficiency of water resources. When not linked, the dust reduction system can be opened autonomously according to the amount of dust in the tunnel, which is more flexible.

[0007] 2. The built-in flow meter cooperates with the water volume analysis system. When the flow is abnormal, it can automatically switch the filtration channel, and the other set of impurity collection nets can continue to work to ensure that the filtration process is not interrupted.

[0008] 3. It can spray water in multiple directions to reduce dust in all directions of the tunnel, especially effectively reduce dust on the top of the tunnel, which solves the shortcomings of the existing dust reduction structure and greatly improves the air quality of the tunnel.

[0009] 4. The curved water pipe is made of PVC. The water pipe reinforcement ribs enhance the stability of the pipe. The sealing cone, water pipe connecting pipe and other components ensure the sealing of the connection. The positioning connecting plate makes the installation of the curved water pipe more stable. It can operate stably and reliably in the harsh working environment of the coal mine and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural diagram of the multi-purpose automatic dust-proof spray device for coal mines of the present invention; Figure 2 This is a three-dimensional structural diagram of the multi-purpose automatic dust-proof spray device for coal mines of the present invention, which only shows the structure of the filter assembly; Figure 3 This is a schematic diagram of the structure of the multi-purpose automatic dust-proof spray device for coal mines of the present invention, which only shows the structure of the filter assembly; Figure 4 This is a three-dimensional structural diagram of the multi-purpose automatic dust-proof spray device for coal mines of the present invention, which only shows the structure of the spray component; Figure 5 This is a three-dimensional structural diagram of the multi-purpose automatic dust-proof spray device for coal mines of the present invention, which only shows the structure of the spray head; Figure 6 It is a three-dimensional structural diagram of Embodiment 2 of the multi-purpose automatic dust-proof spray device for coal mines of the present invention; Figure 7 It is a three-dimensional structural diagram of Embodiment 3 of the multi-purpose automatic dust-proof spray device for coal mines of the present invention; Figure 8 It is a three-dimensional structural diagram of Example 4 of the multi-purpose automatic dust-proof spray device for coal mines of the present invention. Attached photos

[0011] The components include: a water inlet pipe (1), an explosion-proof solenoid valve (2), a filter box (3), an impurity collection net (4), a four-way pipe (5), a water pipe (6), a special-shaped connecting pipe (7), an arc-shaped water pipe (8), a water pipe reinforcement rib (9), a positioning connecting plate (10), a nozzle (11), a sealing connecting pipe (12), a sealing cone (13), a water flow dispersion block (14), a hydraulic cylinder (15), a transmission gear (16), a spur gear (17), a filter separator (18), a water flow separator plate (19), a water flow passing ball (20), a connecting water pipe (21), a water pipe connecting pipe (22), an auxiliary nozzle (23), a multi-directional nozzle (24), a heat dissipation hole (25), and a handle (26). DETAILED DESCRIPTION Example 1

[0012] The multi-purpose automatic dust-proof spray device for coal mines of the present invention is realized as follows: the multi-purpose automatic dust-proof spray device for coal mines of the present invention is composed of a filter component and a spray component. The filter assembly comprises a filter box (3), a water inlet pipe (1), a four-way pipe (5), an explosion-proof solenoid valve (2), a water flow dispersion block (14), a connecting water pipe (21), a water flow passing ball (20), a transmission gear (16), a hydraulic cylinder (15), a spur gear (17), a water flow separation plate (19), a filter separation bar (18) and an impurity collection net (4). The filter box (3) is a rectangular parallelepiped structure with an open top. A water inlet pipe (1) is fixedly mounted on one side of the filter box (3), and the other side of the filter box (3) is connected to a four-way pipe (5). The water inlet pipe (1) is connected to the explosion-proof electromagnetic valve (2), and the water inlet pipe (1) is connected to the four-way pipe (5) through the filter box (3). A water flow dispersion block (14) is fixedly disposed in the filter box (3) near one side surface. The water flow dispersion block (14) is in a T-shaped structure. The water flow dispersion block (14) is composed of a horizontal plate and a vertical plate. The horizontal plate of the water flow dispersion block (14) is a hollow structure. A connecting water pipe (21) is provided in the vertical plate of the water flow dispersion block (14). The connecting water pipe (21) is in a T-shaped structure. One end of the connecting water pipe (21) is connected to the water inlet pipe (1), and the other two ends of the connecting water pipe (21) respectively penetrate the vertical plate of the water flow dispersion block (14) and communicate with the interior of the filter box (3). A water flow passing ball (20) is arranged inside the portion of the communicating water pipe (21) on the same straight line. The water flow passing ball (20) is in a spherical structure with a hole in the middle. The bottom end of the water flow passing ball (20) is rotatably connected to the vertical plate of the water flow dispersion block (14), and the top end of the water flow passing ball (20) passes through the vertical plate of the water flow dispersion block (14) and is fixedly connected to the transmission gear (16). Two water flow passing balls (20) are provided, and the two water flow passing balls (20) are symmetrically arranged with respect to the connecting water pipe (21). The central axes of the holes of the two water flow passing balls (20) are both placed horizontally and are arranged perpendicular to each other. The transmission gear (16) is placed in the hollow structure of the horizontal plate of the water flow dispersion block (14). A hydraulic cylinder (15) is built into the hollow structure of the horizontal plate of the water flow dispersion block (14); one end of the hydraulic cylinder (15) is fixedly connected to the inner side of the water flow dispersion block (14); the other end of the hydraulic cylinder (15) is fixedly connected to a spur gear (17); the spur gear (17) is slidably connected to the water flow dispersion block (14); the spur gear (17) is meshed with a transmission gear (16); A water flow separation plate (19) is placed in the filter box (3), the water flow separation plate (19) is in a T-shaped structure, the water flow separation plate (19) is composed of a horizontal plate and a vertical plate, one end of the horizontal plate of the water flow separation plate (19) is fixedly connected to the middle of the vertical plate, the other end of the horizontal plate of the water flow separation plate (19) is fixedly connected to the side of the water flow dispersion block (14), the two ends of the vertical plate of the water flow separation plate (19) are respectively fixedly connected to the other two side surfaces of the filter box (3), the vertical plate of the water flow separation plate (19) is at a certain distance from the other side surface of the filter box (3), two water holes are opened on the vertical plate of the water flow separation plate (19), and a one-way water valve is correspondingly arranged on each of the water holes. One end of the filter partition bar (18) is fixedly connected to the top of the side of the horizontal plate of the water flow partition plate (19), and the other end of the filter partition bar (18) is fixedly connected to the top of the other two side surfaces of the filter box (3). The filter partition bars (18) are provided in two groups. The two groups of filter partition bars (18) are symmetrically arranged with respect to the water flow partition plate (19). A plurality of filter partition bars (18) are provided in each group. The plurality of filter partition bars (18) are arranged along the horizontal plate direction of the water flow partition plate (19), and in the direction from the water flow partition plate (19) to the water flow dispersion block (14), the distance between the filter partition bar (18) and the horizontal plate of the water flow partition plate (19), the distance between the filter partition bar (18) and the filter partition bar (18), and the distance between the filter partition bar (18) and the water flow dispersion block (14) gradually increase. The impurity collecting net (4) is slidably connected to the filter box (3). The impurity collecting net (4) is provided with two groups. The two groups of the impurity collecting nets (4) are symmetrically arranged with respect to the water flow dividing plate (19). The number of the impurity collecting nets (4) is two more than the number of the filter dividing strips (18). The impurity collecting net (4) corresponds to the gaps between the vertical plates of the water flow dividing plate (19), the filter dividing strips (18) and the water flow dispersion block (14) one by one. The impurity collecting net (4) is a rectangular parallelepiped structure. The width of the impurity collecting net (4) is slightly smaller than the distance between the gaps between the vertical plates of the water flow dividing plate (19), the filter dividing strips (18) and the water flow dispersion block (14). The impurity collecting net (4) is an open structure in the direction toward the water flow dispersion block (14). A plurality of filter holes are evenly distributed on the side of the impurity collecting net (4) opposite to the opening, and the diameter of the filter holes gradually decreases from the water flow dispersion block (14) toward the water flow dividing plate (19). The spray assembly comprises a water pipe (6), a special-shaped connecting pipe (7), an arc-shaped water pipe (8), a sealing cone (13), a water pipe connecting pipe (22), a sealing connecting pipe (12), a positioning connecting plate (10), a water pipe reinforcing rib (9), a nozzle (11) and an auxiliary nozzle (23). One end of the water delivery pipe (6) is connected to a connecting port of the four-way pipe (5), and the other end of the water delivery pipe (6) is connected to one end of the special-shaped connecting pipe (7). The arc-shaped water pipe (8) is connected to the water pipe (6) through the special-shaped connecting pipe (7). Sealing tape is wrapped around the joints between the four-way pipe (5) and the water pipe (6), the water pipe (6) and the special-shaped connecting pipe (7), and the special-shaped connecting pipe (7) and the arc-shaped water pipe (8). The other two ends of the four-way pipe (5) can be connected to another four-way pipe (5) through a water pipe (6), so that multiple groups of spray components can be connected. The arc-shaped water pipe (8) is an arc-shaped tubular structure. The inner diameters of the two ends of the arc-shaped water pipe (8) are slightly larger than the inner diameter of the middle part. The arc-shaped water pipe (8) is made of PVC. Each of the water delivery pipes (6) corresponds to a plurality of arc-shaped water delivery pipes (8), one end of the first arc-shaped water delivery pipe (8) is plug-in connected to the special-shaped connecting pipe (7), and the other end of the last arc-shaped water delivery pipe (8) is plug-in connected and provided with a sealing cone (13). The cross-sectional diameter of the sealing cone (13) from one end to two-thirds is slightly smaller than the inner diameter of the arc-shaped water pipe (8) at both ends. The sealing cone (13) is made of rubber. Each two of the arc-shaped water pipes (8) are connected via a water pipe connecting pipe (22). The water pipe connecting pipe (22) is an arc-shaped tubular structure and has the same curvature as the arc-shaped water pipe (8). The diameter of the outer side surface in the middle of the water pipe connecting pipe (22) is larger than the diameter of the outer side surfaces at both ends and is substantially the same as the diameter of the outer side surface of the arc-shaped water pipe (8). A plurality of sealing rubber rings are fixedly disposed at the smaller diameter of the outer side surface of the water pipe connecting pipe (22). The two ends of the water pipe connecting pipe (22) are respectively connected to an arc-shaped water pipe (8) by plugging and unplugging. The sealing connecting pipe (12) is placed at the intersection of the two arc-shaped water delivery pipes (8). The positioning connection plate (10) is fixedly connected to the top surface of the tunnel by means of screws, and the intersection of the two arc-shaped water pipes (8) is clamped between the positioning connection plate (10) and the tunnel. The side of the arc-shaped water pipe (8) is threadedly wound with a water pipe reinforcing rib (9). The nozzles (11) are threadedly connected to the arc-shaped water pipe (8), each of the arc-shaped water pipes (8) corresponds to a group of nozzles (11), the nozzles (11) are arranged along the winding direction of the water pipe reinforcement ribs (9), and no nozzles (11) are provided on the arc-shaped outer side of the arc-shaped water pipe (8). The nozzle (11) is in a cylindrical structure. One end of the nozzle (11) is threadedly connected to the arc-shaped water pipe (8). The inner side surface of the other end of the nozzle (11) has a smaller diameter. An auxiliary nozzle (23) is fixedly mounted on the side of the nozzle (11); the auxiliary nozzle (23) is in a cylindrical structure; one end of the auxiliary nozzle (23) is in an arc-shaped structure and fits the side of the nozzle (11); the inner side surface of the other end of the auxiliary nozzle (23) has a smaller diameter; a plurality of the auxiliary nozzles (23) are arranged equidistantly along the circumference of the nozzle (11); A flow meter is built into the interface of the four-way pipe (5) connected to the filter box (3).

[0013] The multi-purpose automatic dust-proof spray device for coal mines of the present invention further comprises a water volume analysis system, which comprises a signal converter, a data processor and a controller. The signal converter is placed on the filter box (3), and the data processor is placed on the filter box (3). The flow meter is connected to the signal converter via a data line. The hydraulic cylinder (15) is connected to the controller via a data transmission line. The signal converter is connected to the data processor via a data transmission line, and the data processor is connected to the controller via a data transmission line. The signal converter can receive signals from the water flow meter and convert these non-standard signals or signals that are not convenient for subsequent processing, such as amplifying weak analog signals and converting them into standard digital signals. The data processor and the signal converter perform information exchange, When the water volume analysis system is executed, the following steps are mainly implemented: the water inlet pipe (1) is connected to the water source, and the water flow can be controlled by the explosion-proof electromagnetic valve (2). The explosion-proof electromagnetic valve (2) can be linked to the power supply of the coal mine conveyor belt or not. When linked, the device can be opened synchronously when the coal mine is conveyed, so that the dust reduction work can be started and closed in time while avoiding the waste of water resources. When not linked, the switch of the dust reduction device can be flexibly controlled according to the concentration of dust in the tunnel. Preferably, the explosion-proof solenoid valve (2) is provided with a Y-shaped connecting line, one branch of the Y-shaped connecting line is connected to the switch of the main conveyor belt in the mine, and a switch and a voltage converter are provided on the connecting section, and another branch of the Y-shaped connecting line is connected to the power supply in the mine, and a switch and a voltage converter are provided on the connecting section. When the explosion-proof solenoid valve (2) and the coal mine conveyor belt need to be linked, the switch on the connecting section is opened and the switch on the other connecting section is closed. When the explosion-proof solenoid valve (2) and the coal mine conveyor belt do not need to be linked, the switch on the connecting section is closed and the switch on the other connecting section is opened. The switches are automatically opened and closed by the controller. Since the central axis of the hole on the two water flow passing ball (20) is arranged vertically, when one end of the connecting water pipe (21) is connected to the filter box (3), the other end can be closed, and the water flow can enter the side of the horizontal plate of the water flow dividing plate (19) through the connecting water pipe (21). The water flow can filter the impurities in the water through the multiple impurity receiving nets (4) to prevent the impurities from passing through. The water after the impurities are filtered finally passes through the one-way water valve on the water flow dividing plate (19) and flows into the four-way pipe (5). The treated water flows into the arc water pipe (8) through the water pipe (6) and finally passes through the multiple nozzles (11) and auxiliary nozzles on the arc water pipe (8). The head (23) sprays water in multiple directions, thereby performing all-round dust reduction in the tunnel. At the same time, the flow meter in the four-way pipe (5) can monitor the water flow in real time. When the flow is less than a preset range, the hydraulic cylinder (15) drives the spur gear (17) to slide, thereby driving the water flow through the ball (20) below to rotate through the transmission gear (16), thereby flowing out through the other end of the connecting water pipe (21). The water is filtered through the impurity collection net (4) on the other side of the horizontal plate of the water flow dividing plate (19). At the same time, the impurity collection net (4) on one side of the horizontal plate of the water flow dividing plate (19) is removed to clean the impurities inside, thereby achieving continuous operation; Example 2

[0014] The difference between this embodiment and embodiment 1 is that: the nozzle (11) is replaced by a multi-directional nozzle (24) (11), the multi-directional nozzle (24) (11) is of cylindrical structure, one end of the multi-directional nozzle (24) (11) is threadedly connected to the arc-shaped water pipe (8), and the other end is of open structure, the cross-sectional diameter of the multi-directional nozzle (24) (11) from one end to the half point remains unchanged, and the cross-sectional diameter increases and then decreases in an arc shape from the half point to the other end, the other end of the multi-directional nozzle (24) (11) is of arc structure, and the multi-directional nozzle (24) (11) is evenly provided with a plurality of drainage holes from the half point to the other end; when in use, the plurality of drainage holes can spray water from different directions and angles to form a wider water mist coverage area, so that the water mist can contact the air and dust in a larger spatial range, thereby increasing the dust reduction coverage range and being able to perform dust reduction treatment on the air more comprehensively; Example 3

[0015] The difference between this embodiment and the embodiment is that: a plurality of heat dissipation holes (25) are formed on the top surface of the horizontal plate of the water flow dispersion block (14), and the plurality of heat dissipation holes (25) are evenly distributed on the top surface of the water flow dispersion block (14); when in use, the heat dissipation holes (25) can promote air circulation and quickly dissipate heat, thereby reducing the temperature of the hydraulic cylinder (15) and improving the working efficiency and performance of the hydraulic cylinder (15); Example 4

[0016] A handle (26) is rotatably connected to the top surface of the impurity collection net (4); the handle (26) is in a U-shaped structure; both ends of the handle (26) are rotatably connected to the top surface of the impurity collection net (4); the handle (26) is made of PVC; when in use, the handle (26) can facilitate an operator to pull out the impurity collection net (4) for easy cleaning; A water inlet pipe (1) is fixedly mounted on one side of the filter box (3), and the other side of the filter box (3) is connected to a four-way pipe (5), so that the water flow path is clear and it is convenient to cooperate with other components; The water flow dispersion block (14) is of a T-shaped structure. The water flow dispersion block (14) is composed of a horizontal plate and a vertical plate. The horizontal plate of the water flow dispersion block (14) is of a hollow structure. A connecting water pipe (21) is provided in the vertical plate of the water flow dispersion block (14). The connecting water pipe (21) is of a T-shaped structure. One end of the connecting water pipe (21) is connected to the water inlet pipe (1). The other two ends of the connecting water pipe (21) respectively penetrate the vertical plate of the water flow dispersion block (14) and are connected to the inside of the filter box (3). This design not only provides installation space for components such as the hydraulic cylinder (15), the spur gear (17) and the transmission gear (16), but also does not affect the dispersion and filtering process of the water flow. The water flow can be guided to different areas in the filter box (3), thereby improving the filtering efficiency. The water flow passing ball (20) is in a spherical structure and has a hole in the middle. Two water flow passing balls (20) are provided. The two water flow passing balls (20) are symmetrically arranged with respect to the connecting water pipe (21). The central axes of the holes of the two water flow passing balls (20) are both horizontally placed and perpendicular to each other. When one of the water flow passing balls (20) is opened, the other can be closed, thereby realizing accurate switching of the water flow direction. Therefore, during the filtering process, when one group of impurity collecting nets (4) is performing filtering work, the other group can be in a standby state or be cleaned and maintained. When one group of impurity collecting nets (4) has too many impurities that affect the filtering effect, the other group can continue to work. In this way, the situation in which the entire filtering system fails due to the blockage of one group of impurity collecting nets (4) can be avoided. At the same time, a time window is provided for timely cleaning and maintenance of the blocked impurity collecting nets (4), thereby ensuring the long-term stable operation of the filtering system and improving the filtering efficiency. One end of the hydraulic cylinder (15) is fixedly connected to the inner side of the water flow dispersion block (14), and the other end is fixedly connected to the spur gear (17). The spur gear (17) is meshed with the transmission gear (16), so that the hydraulic cylinder (15) can accurately control the sliding of the spur gear (17), thereby driving the transmission gear (16) to rotate, thereby controlling the rotation of the water flow through the ball (20), and realizing intelligent regulation of the water flow; The water flow dividing plate (19) is of a T-shaped structure, one end of the horizontal plate is fixedly connected to the middle of the vertical plate, and the other end is fixedly connected to the side of the water flow dispersion block (14), and the two ends of the vertical plate are respectively fixedly connected to the other two side surfaces of the filter box (3), and are designed to have a certain distance from the other side surface of the filter box (3), so that the inside of the filter box (3) is divided into different areas, so that the water flow can pass through different impurity collection nets (4) during the filtering process, thereby improving the filtering effect; The vertical plate of the water flow dividing plate (19) is provided with two water holes and a one-way water valve is disposed correspondingly thereto, thereby ensuring the one-way flow of water and preventing the backflow of water; The impurity collection net (4) is in a rectangular parallelepiped structure, with a width slightly smaller than the corresponding gap distance, and is an open structure in the direction toward the water flow dispersion block (14). A plurality of filter holes are evenly distributed on the side opposite to the opening, and the filter holes are designed to gradually decrease in diameter from the water flow dispersion block (14) toward the water flow separation plate (19), so that when the water flows through different impurity collection nets (4), impurities of different sizes can be gradually filtered out, thereby improving the filtration accuracy and effect; One end of the water delivery pipe (6) is connected to a connecting port of the four-way pipe (5), and the other end is connected to one end of the special-shaped connecting pipe (7). The arc-shaped water delivery pipe (8) is designed to communicate with the water delivery pipe (6) through the special-shaped connecting pipe (7), so that water can be smoothly transported from the filter component to the spray component. At the same time, sealing tape is wrapped around the joints between the four-way pipe (5) and the water delivery pipe (6), the water delivery pipe (6) and the special-shaped connecting pipe (7), and the special-shaped connecting pipe (7) and the arc-shaped water delivery pipe (8), thereby ensuring the sealing of the joints and preventing water leakage. The other two ends of the four-way pipe (5) can be connected to another four-way pipe (5) through a water pipe (6), so that a design of connecting multiple groups of spray components can be realized, so that the device can flexibly expand the spray range according to actual needs, thereby improving the applicability and versatility of the device; The arc-shaped water pipe (8) is an arc-shaped tubular structure. The inner diameter of the two ends of the arc-shaped water pipe (8) is slightly larger than the inner diameter of the middle part. The arc-shaped water pipe (8) is made of PVC material, so that the arc-shaped water pipe (8) is more stable and less likely to deform during installation and use. At the same time, the larger diameter at the two ends facilitates plug-in connection with the special-shaped connecting pipe (7) and the water pipe connecting pipe (22), thereby improving the efficiency of installation and disassembly. The cross-sectional diameter of the sealing cone (13) from one end to two-thirds is slightly smaller than the inner diameter of the two ends of the arc-shaped water pipe (8), and is made of rubber material. When the other end of the last arc-shaped water pipe (8) is plugged in and connected with the sealing cone (13), the arc-shaped water pipe (8) can be effectively sealed to prevent water leakage; The water pipe connecting pipe (22) is in an arc-shaped tubular structure and has the same curvature as the arc-shaped water pipe (8). The diameter of the outer side surface in the middle is larger than the diameter of the outer side surfaces at the two ends and is substantially the same as the diameter of the outer side surfaces of the arc-shaped water pipe (8). A plurality of sealing rubber rings are fixedly arranged at the smaller diameter of the outer side surface. The two ends are respectively connected to an arc-shaped water pipe (8) by plugging and unplugging, so that the water pipe connecting pipe (22) can tightly connect the two arc-shaped water pipes (8), thereby ensuring the smooth flow of water. At the same time, the sealing rubber ring also improves the sealing performance of the connection. The design of the sealing connecting pipe (12) being sleeved at the intersection of the two arc-shaped water delivery pipes (8) can effectively prevent water leakage at the intersection; The positioning connection plate (10) is fixedly connected to the top surface of the laneway by screws, and the intersection of the two arc-shaped water pipes (8) is clamped between the positioning connection plate (10) and the laneway, so that the arc-shaped water pipes (8) are more stable and less likely to shake during installation and use; The design of the water pipe reinforcing rib (9) being wound around the side thread of the arc-shaped water pipe (8) can enhance the strength and stability of the arc-shaped water pipe (8) and prevent deformation or rupture during use; The spray heads (11) are threadedly connected to the arc-shaped water pipe (8), each arc-shaped water pipe (8) corresponds to a group of spray heads (11), the spray heads (11) are arranged along the winding direction of the water pipe reinforcement ribs (9), and the arc-shaped outer side of the arc-shaped water pipe (8) is not provided with spray heads (11), so that the spray heads (11) can be evenly distributed on the arc-shaped water pipe (8), thereby improving the spray effect and coverage range; The nozzle (11) has a cylindrical structure, one end of the nozzle (11) is threadedly connected to the arc-shaped water pipe (8), and the inner side surface of the other end has a smaller diameter. An auxiliary nozzle (23) is fixedly arranged on the side of the nozzle (11), and the auxiliary nozzle (23) has a cylindrical structure, one end of which is an arc-shaped structure and fits the side surface of the nozzle (11), and the inner side surface of the other end has a smaller diameter. The design of equidistantly arranged multiple auxiliary nozzles (23) along the circumference of the nozzle (11) enables fine water mist to be formed when water is sprayed out and sprayed in multiple directions at the same time, thereby improving the dust reduction effect and coverage range; The interface of the four-way pipe (5) connected to the filter box (3) is designed with a built-in flow meter, which can monitor the water flow in real time. When the flow is less than a preset range, the hydraulic cylinder (15) is automatically started to drive the water flow ball (20) to rotate and switch the filter channel. When a group of impurity collection nets (4) are blocked or other problems occur, the filter channel can be quickly switched to another group of spare filter channels to ensure that the filtering process will not be interrupted. At the same time, the group of impurity collection nets (4) with problems can be cleaned to prepare for their subsequent use. The purpose of filtering impurities in the water source through the filtering components and carrying out all-round dust reduction in the tunnel is achieved through multiple groups of spray components.

[0017] It should be noted that, unless otherwise clearly specified and limited, the terms "placed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection method such as a folding connection, a rivet connection, a pin connection, a bonding connection and a welding connection, or a detachable connection method such as a threaded connection, a snap connection and a hinge connection, or an integral connection, or an electrical connection, or a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] It should be further pointed out that, when describing the above specific embodiment, for the sake of simplicity and clarity, only the differences between the above specific embodiment and other embodiments are described, but those skilled in the art should know that the above specific embodiment itself is also an independent technical solution.

Claims

1. Multi-purpose automatic dust-proof spray device for coal mines, characterized by: The utility model is composed of a filter assembly and a spray assembly, wherein the filter assembly is composed of a filter box, a water inlet pipe, a four-way pipe, an explosion-proof electromagnetic valve, a water flow dispersion block, a connecting water pipe, a water flow passing ball, a water flow dividing plate, a filter dividing strip and an impurity receiving net. A water inlet pipe is fixedly arranged on one side of the filter box, and the other side of the filter box is connected to the four-way pipe. The water inlet pipe is connected to the explosion-proof electromagnetic valve. A water flow dispersion block is fixedly arranged in a side of the filter box, and the water flow dispersion block is composed of a horizontal plate and a vertical plate. A connecting water pipe is opened in the vertical plate of the water flow dispersion block. The connecting water pipe is A water flow ball is placed inside the part on the same straight line, and a water flow dividing plate is placed in the filter box. The water flow dividing plate is composed of a horizontal plate and a vertical plate. One end of the horizontal plate of the water flow dividing plate is fixedly connected to the middle of the vertical plate, and the other end of the horizontal plate of the water flow dividing plate is fixedly connected to the side of the water flow dispersion block. Two water holes are opened on the vertical plate of the water flow dividing plate, and a one-way water valve is respectively arranged on the water holes. One end of the filter dividing strip is fixedly connected to the top of the side of the horizontal plate of the water flow dividing plate, and the other end of the filter dividing strip is fixedly connected to the top of the other two side surfaces of the filter box. The impurity collection net is connected to the filter The box is connected by sliding, and the spray assembly is composed of a water pipe, a special-shaped connecting pipe, an arc-shaped water pipe, a sealing cone, a water pipe connecting pipe, a sealing connecting pipe, a positioning connecting plate, a water pipe reinforcing rib, a nozzle and an auxiliary nozzle. One end of the water pipe is connected to a connecting port of a four-way pipe, and the other end of the water pipe is connected to one end of the special-shaped connecting pipe. The arc-shaped water pipe is connected to the water pipe through the special-shaped connecting pipe. One end of the first arc-shaped water pipe is connected to the special-shaped connecting pipe by plugging and unplugging, and the other end of the last arc-shaped water pipe is connected by plugging and unplugging. A sealing cone is arranged between every two arc-shaped water pipes. It is connected through a water pipe connecting pipe, both ends of which are respectively connected to an arc-shaped water pipe by plugging and unplugging, a sealing connecting pipe sleeve is placed at the intersection of the two arc-shaped water pipes, a positioning connecting plate is fixedly connected to the top surface of the tunnel by screws, a water pipe reinforcing rib is threadedly wound around the side surface of the arc-shaped water pipe, a nozzle is threadedly connected to the arc-shaped water pipe, each of the arc-shaped water pipes corresponds to a group of nozzles, an auxiliary nozzle is fixedly arranged on the side of the nozzle, a flow meter is built into the four-way pipe interface connected to the filter box, and the multi-purpose automatic dust-proof spray device for coal mines also includes a water volume analysis system.

2. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1 is characterized in that The nozzle is replaced by a multi-directional nozzle, which has a cylindrical structure. One end of the multi-directional nozzle is threadedly connected to the arc-shaped water pipe, and the other end is an open structure. The cross-sectional diameter of the multi-directional nozzle remains unchanged from one end to one-half, and increases and then decreases in an arc shape from one-half to the other end. The other end of the multi-directional nozzle is an arc-shaped structure, and the multi-directional nozzle has multiple drainage holes evenly opened from one-half to the other end.

3. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1 is characterized in that A plurality of heat dissipation holes are formed on the top surface of the transverse plate of the water flow dispersion block, and the plurality of heat dissipation holes are evenly distributed on the top surface of the water flow dispersion block.

4. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1, characterized in that A handle is rotatably connected to the top surface of the impurity storage net, the handle is in a U-shaped structure, both ends of the handle are rotatably connected to the top surface of the impurity storage net, and the handle is made of PVC material.

5. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1 is characterized in that The filter box is a rectangular structure with an open structure at the top. The water inlet pipe is connected to the four-way pipe through the filter box. The water flow dispersion block is a T-shaped structure. The horizontal plate of the water flow dispersion block is a hollow structure. The connecting water pipe is a T-shaped structure. One end of the connecting water pipe is connected to the water inlet pipe, and the other two ends of the connecting water pipe respectively pass through the vertical plates of the water flow dispersion block and are connected to the inside of the filter box.

6. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1, characterized in that The water flow passing ball is in a spherical structure with a hole in the middle. The bottom end of the water flow passing ball is rotatably connected to the vertical plate of the water flow dispersion block, and the top end of the water flow passing ball passes through the vertical plate of the water flow dispersion block and is fixedly connected to the transmission gear. Two water flow passing balls are provided, and the two water flow passing balls are symmetrically arranged about the connecting water pipe. The central axes of the holes of the two water flow passing balls are both horizontally placed and perpendicular to each other. The transmission gear is placed in the hollow structure of the horizontal plate of the water flow dispersion block. A hydraulic cylinder is built in the hollow structure of the horizontal plate of the water flow dispersion block. One end of the hydraulic cylinder is fixedly connected to the inner side of the water flow dispersion block, and the other end of the hydraulic cylinder is fixedly connected to the spur gear. The spur gear is slidably connected to the water flow dispersion block, and the spur gear is meshed with the transmission gear. The water flow separator is in a T-shaped structure.

7. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1, characterized in that The two ends of the vertical plate of the water flow dividing plate are respectively fixedly connected to the other two side surfaces of the filter box, and the vertical plate of the water flow dividing plate is at a certain distance from the other side surface of the filter box. The filter dividing strips are provided with two groups, and the two groups of the filter dividing strips are symmetrically arranged about the water flow dividing plate. There are multiple filter dividing strips in each group, and the multiple filter dividing strips are arranged along the direction of the horizontal plate of the water flow dividing plate, and from the water flow dividing plate to the water flow dispersion block, the distance between the filter dividing strip and the horizontal plate of the water flow dividing plate, the distance between the filter dividing strip and the filter dividing strip, and the distance between the filter dividing strip and the water flow dispersion block gradually increase. The impurity collection net is provided with two groups The two groups of impurity collecting nets are symmetrically arranged about the water flow dividing plate, the number of the impurity collecting nets is two more than the filter dividing strips, the impurity collecting nets correspond one to one with the gaps between the vertical plates of the water flow dividing plate, the filter dividing strips, and the water flow dispersion blocks, the impurity collecting nets are in a rectangular structure, the width of the impurity collecting nets is slightly smaller than the distance between the corresponding vertical plates of the water flow dividing plate, the filter dividing strips, and the gaps between the water flow dispersion blocks, the impurity collecting nets are in an open structure toward the water flow dispersion block, a plurality of filter holes are evenly distributed on the side of the impurity collecting net opposite to the opening, and the diameter of the filter holes gradually decreases from the water flow dispersion block toward the water flow dividing plate.

8. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1 is characterized in that Sealing tape is wrapped around the joints between the four-way pipe and the water pipe, the water pipe and the special-shaped connecting pipe, and the special-shaped connecting pipe and the arc-shaped water pipe. The other two ends of the four-way pipe can be connected to another four-way pipe through the water pipe, so that multiple groups of spray components can be connected. The arc-shaped water pipe has an arc-shaped tubular structure. The diameter of the inner side surface at both ends of the arc-shaped water pipe is slightly larger than the diameter of the inner side surface in the middle. The arc-shaped water pipe is made of PVC material. Each of the water pipes corresponds to multiple arc-shaped water pipes. The cross-sectional diameter of the sealing cone from one end to two-thirds is slightly smaller than the diameter of the inner side surface at both ends of the arc-shaped water pipe. The sealing cone is made of rubber.

9. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1 is characterized in that The water pipe connecting pipe is an arc-shaped tubular structure and has the same bending curvature as the arc-shaped water pipe. The diameter of the outer side surface in the middle of the water pipe connecting pipe is larger than the diameter of the outer side surfaces at both ends and is roughly the same as the diameter of the outer side surface of the arc-shaped water pipe. A plurality of sealing rubber rings are fixedly arranged at the smaller diameter of the outer side surface of the water pipe connecting pipe. The intersection of the two arc-shaped water pipes is clamped between the positioning connecting plate and the laneway. The nozzles are arranged along the winding direction of the water pipe reinforcement ribs, and no nozzles are provided on the outer side of the arc of the arc-shaped water pipe. The nozzles are cylindrical in structure, one end of the nozzles is threadedly connected to the arc-shaped water pipe, and the inner side surface of the other end of the nozzle has a smaller diameter. The auxiliary nozzles are cylindrical in structure, one end of the auxiliary nozzles is an arc-shaped structure and fits the side surface of the nozzle, and the inner side surface of the other end of the auxiliary nozzle has a smaller diameter. A plurality of the auxiliary nozzles are arranged equidistantly along the circumference of the nozzle.

10. The multi-purpose automatic dust-proof spray device for coal mines according to claim 1, characterized in that The water volume analysis system includes a signal converter, a data processor and a controller. The signal converter is placed on the filter box, the data processor is placed on the filter box, the flow meter is connected to the signal converter through a data line, the hydraulic cylinder is connected to the controller through a data transmission line, the signal converter is connected to the data processor through a data transmission line, the data processor is connected to the controller through a data transmission line, the signal converter can receive signals from the water flow meter, it converts these non-standard or inconvenient signals for subsequent processing, such as amplifying weak analog signals and converting them into standard digital signals, the data processor and the signal converter exchange information, and the water volume analysis system mainly implements the following steps when it is executed: connect the water inlet pipe to the water source, and control the entry of water flow through the explosion-proof solenoid valve. The explosion-proof solenoid valve can be selected to be linked with the power supply of the coal mine conveyor belt or not. When linked, the device can be opened synchronously when the coal mine is transported, so that the dust reduction work can be started and closed in time while avoiding water resource waste. When not linked, The switch of the dust suppression device can be flexibly controlled according to the concentration of dust in the tunnel. Since the two water flows are arranged vertically through the central axis of the hole on the ball, when one end of the connecting water pipe is connected to the filter box, the other end can be closed, and the water flow can enter one side of the horizontal plate of the water flow dividing plate through the connecting water pipe. The water flow can filter the impurities in the water through multiple impurity collection nets to prevent the passage of impurities. The water after filtering the impurities finally passes through the one-way water valve on the water flow dividing plate and flows into the four-way pipe. The treated water flows into the arc water pipe through the water pipe and finally passes through the arc water pipe. The multiple nozzles and auxiliary nozzles on the top spray water in multiple directions, thereby achieving all-round dust reduction in the tunnel. At the same time, the flow meter in the four-way pipe can monitor the water flow in real time. When the flow is less than the preset range, the hydraulic cylinder drives the spur gear to slide, thereby driving the water flow below to rotate through the transmission gear, so that water flows out through the other end of the connected water pipe. The water is filtered through the impurity collection net on the other side of the horizontal plate of the water flow separator, and the impurity collection net on one side of the horizontal plate of the water flow separator is removed to clean the internal impurities, thereby achieving continuous operation.

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