Working face drainage device based on water pump centralized control

Abstract

The utility model discloses a working face drainage device based on water pump centralized control, which comprises a plurality of drainage units arranged side by side, a start-stop platform connected with the drainage units through wires and a lifting platform connected with the drainage units through pipelines, and further comprises a control platform, the drainage units are connected with the control platform through wires and further connected with the control platform through pipelines. According to the working face drainage device based on water pump centralized control, the problem that in the prior art, the water pumps need to be hoisted and transferred frequently is solved, centralized control and rapid and efficient pumping drainage of accumulated water are achieved, and the influence of water damage on safe and efficient production is reduced to the maximum extent.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine drainage equipment, and relates to a working face drainage device based on centralized water pump control. Background Technology

[0002] Water hazards at underground coal mine working faces pose a serious threat to safe production, efficient operation, and equipment safety. Large amounts of water flowing into the working face mix with coal dust to form a water-coal mixture, which is easily carried out by the scraper conveyor, causing blockages in the transportation system and safety exits. This also leads to the accumulation of coal sludge in the transport roadways, which not only hinders normal drainage at the working face but also easily causes water to backflow into the working space, creating a vicious cycle. In addition, when the water accumulation at the working face is severe, the working area will be submerged, causing coal mining equipment (such as the coating of hydraulic supports peeling off and the transmission components of the coal mining machine corroding and jamming) to be damaged or fail due to immersion, resulting in frequent malfunctions and serious delays in production progress.

[0003] Currently, water pumps are typically placed in low-lying areas of the work surface, following a passive response principle of only activating drainage when water accumulates. Faced with complex and ever-changing working conditions, frequent hoisting and relocation of water pumps are required. This process is extremely labor-intensive, time-consuming, and severely restricts production continuity, while also posing significant safety risks. In particular, when frequently using chain hoists for hoisting and transportation, there is a risk of chain breakage causing equipment to fall from heights. Furthermore, damaged chain hoists need to be replaced regularly, further increasing operational risks and maintenance costs.

[0004] Meanwhile, in water collection pit treatment systems in industrial settings such as coal mines and coal washing plants, traditional mechanical filtration devices face problems such as a lack of self-cleaning function and poor filtration efficiency due to their single-layer filter structure. During long-term operation, coal sludge, suspended solids, and sediments accumulate rapidly, leading to severe clogging of the filter pores and a decrease in filtration efficiency. Furthermore, due to the lack of a self-cleaning mechanism, manual cleaning of the filter screen is necessary, which not only involves high labor intensity and maintenance costs but also poses safety hazards such as slips and falls, and mechanical injuries. Utility Model Content

[0005] The purpose of this invention is to provide a working face drainage device based on centralized water pump control, which solves the problem of frequent water pump hoisting and transportation in the prior art.

[0006] The technical solution adopted by this utility model is a working face drainage device based on centralized water pump control, which includes several drainage units arranged side by side, several drainage units connected to a start / stop platform via wires, several drainage units connected to a lifting platform via pipes, and also includes a control platform, several drainage units connected to the control platform via wires, and several drainage units also connected to the control platform via pipes.

[0007] The features of this utility model also include:

[0008] The start / stop platform is equipped with several emergency stop interlock switches, and several drainage units are connected to these switches one by one via wires. The lifting platform is equipped with several control valve assemblies, and several drainage units are connected to these valve assemblies one by one via pipes. The control platform is equipped with several water pump start / stop switches and several lifting control switches, and several drainage units are also connected to these switches one by one via wires. The control platform is also equipped with an emergency stop button, and both the water pump start / stop switches and the lifting control switches are connected to the emergency stop button via wires.

[0009] The drainage unit includes two hydraulic supports, each with two hydraulic support front beams. Each of the four hydraulic support front beams is hinged with a hydraulic telescopic cylinder, and the hydraulic telescopic cylinder is hinged with a water pump unit via a connecting plate.

[0010] The pump unit includes two submersible sewage pumps, which are connected to two hydraulic telescopic cylinders via connecting plates. It also includes a heavy-duty submersible mud pump and a filter cleaning device, which are connected to two other hydraulic telescopic cylinders via connecting plates. The filter cleaning device is located between the heavy-duty submersible mud pump and the two submersible sewage pumps.

[0011] The submersible sewage pump is equipped with a first lifting ring, which is connected to a connecting plate via a hinge shaft. The submersible sewage pump is also equipped with a first drainage outlet, which is connected to the mine's main drainage system via a pipe.

[0012] The heavy-duty submersible mud pump is equipped with a second lifting ring, which is connected to another connecting plate via a hinge shaft. The heavy-duty submersible mud pump is also equipped with a second drain outlet, which is connected to a cable trough located above the scraper conveyor via a pipe.

[0013] The hydraulic telescopic cylinder includes a telescopic cylinder body and a piston rod. A third lifting ring is provided on the telescopic cylinder body. The third lifting ring is connected to the front beam of the hydraulic support via a hinge shaft. A fourth lifting ring is provided at the end of the piston rod away from the third lifting ring. The fourth lifting ring is connected to a connecting plate via a hinge shaft. A first through hole is provided at one end of the connecting plate. The fourth lifting ring is connected to the connecting plate within the first through hole via a hinge shaft. A second through hole is provided at the other end of the connecting plate. The water pump unit is connected to the connecting plate within the second through hole via a hinge shaft.

[0014] The filter cleaning device includes a filter unit, which is horizontally positioned. Fixing devices are fixed to the outer walls of both ends of the filter unit, forming an "X" shape. It also includes a first filter screen layer and a second filter screen layer. The filter unit is fixed between the first and second filter screen layers via the fixing devices. Furthermore, it includes four traction ropes. One end of each traction rope is fixed to a second through hole in another connecting plate. The other ends of two traction ropes are connected to the top sides of the first filter screen layer, and the other two traction ropes are connected to the top sides of the second filter screen layer. The porosity of the first filter screen layer is greater than that of the second filter screen layer. The first filter screen layer is positioned near the heavy-duty submersible mud pump, and the second filter screen layer is positioned near the submersible sewage pump.

[0015] The filter device is equipped with a high-pressure water inlet, and several high-pressure nozzle units are evenly arranged along the circumference on the outer side of the filter device. Each of the several high-pressure nozzle units includes several high-pressure nozzles.

[0016] The hydraulic support is equipped with an intrinsically safe radar water level sensor and a pan-tilt camera for mining.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a working face drainage device based on centralized pump control. Through a start / stop platform and a lifting platform, combined with an emergency stop interlock switch and control valve group, a centralized control system is constructed. This enables remote and precise start / stop and lifting control of multiple pumps working in tandem, significantly reducing the error rate and improving drainage efficiency. Centralized pumping can be achieved through both remote and on-site control modes, efficiently and reliably draining working face water, ensuring a safe working environment and normal equipment operation. By setting up a heavy-duty submersible mud pump specifically to handle coal slurry water with high solids content and directly discharging it into the scraper conveyor, solid particles are effectively diverted. This fundamentally avoids the risk of coal slurry clogging the filter screen or impeller of the mine explosion-proof submersible sewage pump, greatly improving the stability and reliability of the drainage device. The scraper conveyor can be used as a coal slurry transport carrier, effectively transporting previously difficult-to-handle coal slurry resources to the belt conveyor, significantly reducing coal resource waste. It is suitable for the efficient and rapid pumping of working face water from large inflows in coal mines, reducing the negative impact of water hazards on production and equipment operation, and improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the working face drainage device based on centralized water pump control according to this utility model;

[0020] Figure 2 This is a schematic diagram of the start-stop platform of this utility model;

[0021] Figure 3 This is a structural schematic diagram of the lifting platform of this utility model;

[0022] Figure 4 This is a schematic diagram of the control platform of this utility model;

[0023] Figure 5 This is a connection diagram of the water pump unit of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the submersible sewage electric pump of this utility model;

[0025] Figure 7 This is a structural schematic diagram of the heavy-duty submersible mud pump of this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the hydraulic telescopic cylinder of this utility model;

[0027] Figure 9 This is a schematic diagram of the connecting plate of this utility model;

[0028] Figure 10 This is a schematic diagram of the filter cleaning device of this utility model;

[0029] Figure 11 This is a schematic diagram of the filter device of this utility model.

[0030] In the diagram, 1. Hydraulic support, 2. Front beam of hydraulic support, 3. Intrinsically safe radar water level sensor for mining, 4. Hydraulic telescopic cylinder, 5. Connecting plate, 6. Water pump unit, 7. Submersible sewage electric pump, 8. Heavy-duty submersible mud pump, 9. Emergency stop interlock switch, 10. Start-stop platform, 11. Lifting platform, 12. Control valve group, 13. First lifting ring, 14. First drain outlet, 15. Second lifting ring, 16. Second drain outlet, 17. Third lifting ring, 18. Piston rod, 19. Fourth lifting ring, 20. First through hole, 21. Second through hole, 22. Traction rope, 23. Filter device, 24. First filter screen layer, 25. Filter screen cleaning device, 26. Second filter screen layer, 27. Fixing device, 28. High-pressure water inlet, 29. High-pressure nozzle, 30. Control platform, 31. Emergency stop button, 32. Water pump start-stop switch, 33. Lifting control switch, 34. Pan-tilt camera. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] This utility model provides a working face drainage device based on centralized pump control. According to the specific geological conditions of the coal mining face, such as floor undulations and water inflow, and the arrangement of existing equipment such as hydraulic supports and scraper conveyors, a sump with a certain volume and depth is excavated in a suitable area in front of the headframe at the tail end of the working face using the normal cutting function of the coal mining machine. This sump serves as the centralized drainage point for the working face. Figure 1 As shown, it includes several drainage units, which are arranged side by side, such as... Figure 1 As shown, several drainage units are connected to a start / stop platform 10 via wires, and several drainage units are connected to a lifting platform 11 via pipes. The system also includes a control platform 30. Several drainage units are connected to the control platform 30 via wires, and several drainage units are also connected to the control platform 30 via pipes. Figure 2 As shown, the start / stop platform 10 is equipped with several emergency stop interlocking switches 9, and several drainage units are respectively connected to the several emergency stop interlocking switches 9 one-to-one via wires; for example... Figure 3 As shown, the lifting platform 11 is equipped with several control valve groups 12, and several drainage units are respectively connected to the control valve groups 12 one by one through pipes; for example Figure 4 As shown, the control platform 30 is equipped with several water pump start / stop switches 32 and several lifting control switches 33. Several drainage units are also connected to the water pump start / stop switches 32 one by one through wires, and the drainage units are also connected to the lifting control switches 33 one by one through pipes. The control platform 30 is also equipped with an emergency stop button 31. The water pump start / stop switches 32 and the lifting control switches 33 are all connected to the emergency stop button 31 through wires. The number of emergency stop interlocking switches 9 is strictly matched with the number of water pumps. Each emergency stop interlocking switch 9 has a unique number and is precisely associated with the number of the corresponding water pump and the number of the lifting hydraulic telescopic cylinder. Each switch can control the start and stop of the water pump with the corresponding number. The remote centralized start / stop platform 10 for water pumps is installed in a location where the water level in the sump and the on-site operating status of all water pumps can be directly observed in real time. This ensures that operators can intuitively see the water level and pump operating status while remotely controlling the pumps, achieving safe, accurate, and efficient mine drainage control. The remote centralized lifting platform 11 for water pumps uses mining hydraulic support control valve groups 12 as execution units. The number of each control valve group 12 strictly matches the mining intrinsically safe combination emergency stop interlock switch 9 and the pump number. Each control valve group 12 can control the rise and fall of the corresponding numbered pump. The remote centralized lifting platform for water pumps is also installed in a location where the water level in the sump and the on-site operating status of all water pumps can be directly observed in real time, and it is close to the remote centralized control platform for water pumps, ensuring that operators can perform cross-platform operations in a short time. Figure 5As shown, the drainage unit includes two hydraulic supports 1, each with two hydraulic support front beams 2. Each of the four hydraulic support front beams 2 is hinged with a hydraulic telescopic cylinder 4. The hydraulic telescopic cylinders 4 are hinged to a water pump unit 6 via a connecting plate 5. The hydraulic telescopic cylinders 4 drive the water pump unit 6 connected to their lower ends to rise and fall within the sump, adapting to water level changes and ensuring that the water pump unit 6 is always in a high-efficiency pumping position. The sump is not a pre-excavated fixed structure, but rather dynamically formed by the coal mining machine during coal cutting operations in the tail area through a specific undercutting process. The position of the sump continuously migrates towards the working face direction as the coal mining machine cycles through coal cutting and the hydraulic supports 1 periodically move forward. Meanwhile, the volume and depth of the sump are not constant values, but are adaptively adjusted according to the real-time dynamic water inflow of the working face, the lithology of the bottom plate, the slope, and the water spray from the roof, etc. This is mainly achieved by precisely controlling the bottom depth and range of the coal mining machine. During the design and dynamic adjustment process, two core constraints must be strictly met: the water level in the sump must always be controlled below the preset safe height to ensure that key components such as the tail scraper conveyor motor, heavy-duty submersible mud pump 8, and submersible sewage pump 7 are not submerged; the shape of the pit and its surrounding area must retain sufficient effective space to ensure the safe and smooth passage of workers at the working face; the pump unit 6 includes two submersible sewage pumps 7, which are connected to two hydraulic telescopic cylinders 4 through connecting plates 5. The length and extension stroke of the hydraulic telescopic cylinders 4 are precisely matched based on the support height of the hydraulic support 1, the installation height of the pump unit 6, and the depth of the sump. The minimum retracted height of the hydraulic telescopic cylinder 4 must be sufficient to safely lift the water pump unit 6 to the required position, while ensuring that the forward pushing operation of the hydraulic support 1 is not interfered with. The maximum extension length must meet the requirements of the hydraulic support 1's support height minus the water pump unit 6's installation height, taking into account safety margins. The effective stroke must cover the height adjustment range of the hydraulic support 1 and adapt to the position adjustment needs of the water pump unit 6 caused by water level changes, thereby achieving reliable support and height adaptive adjustment of the equipment in the complex environment of the pit; it also includes a heavy-duty submersible mud pump 8 and a filter cleaning device 25. The heavy-duty submersible mud pump 8 and the filter cleaning device 25 are respectively connected to two other hydraulic telescopic cylinders 4 through connecting plates 5. The filter cleaning device 25 is located between the heavy-duty submersible mud pump 8 and two submersible sewage electric pumps 7. Figure 6 As shown, the submersible sewage pump 7 is equipped with a first lifting ring 13, which is connected to the connecting plate 5 via a hinge shaft. The submersible sewage pump 7 is also equipped with a first drain outlet 14, which is connected to the mine's main drainage system via a pipe. Figure 7As shown, the heavy-duty submersible mud pump 8 is equipped with a second lifting ring 15, which is connected to another connecting plate 5 via a hinge shaft. The heavy-duty submersible mud pump 8 is also equipped with a second drain outlet 16, which is connected via a pipe to a cable trough located above the scraper conveyor, thereby directly discharging the pumped coal slurry mixture into the trough of the operating scraper conveyor. Figure 8 As shown, the hydraulic telescopic cylinder 4 includes a telescopic cylinder body and a piston rod 18. A third lifting ring 17 is provided on the telescopic cylinder body, and the third lifting ring 17 is connected to the front beam 2 of the hydraulic support via a hinge shaft. A fourth lifting ring 19 is provided at the end of the piston rod 18 away from the third lifting ring 17, and the fourth lifting ring 19 is connected to the connecting plate 5 via a hinge shaft. Figure 9 As shown, one end of the connecting plate 5 has a first through hole 20, and the fourth lifting ring 19 is connected to the connecting plate 5 through the first through hole 20 via a hinge shaft. The other end of the connecting plate 5 has a second through hole 21, and the water pump unit 6 is connected to the connecting plate 5 through the second through hole 21 via a hinge shaft. Figure 10 As shown, the filter cleaning device 25 includes a filter device 23, which is horizontally arranged. Fixing devices 27 are fixed to the outer walls of both ends of the filter device 23, and the fixing devices 27 have an "X" shaped structure. It also includes a first filter screen layer 24 and a second filter screen layer 26. The filter device 23 is fixed between the first filter screen layer 24 and the second filter screen layer 26 via the fixing devices 27. It also includes four traction ropes 22. One end of each traction rope is fixed to the second through hole 21 of another connecting plate 5. The other ends of two traction ropes are connected to the top sides of the first filter screen layer 24, and the other two traction ropes are connected to the top sides of the second filter screen layer 26. The porosity of the first filter screen layer 24 is greater than that of the second filter screen layer 26. The first filter screen layer 24 is located near the heavy-duty submersible mud pump 8, and the second filter screen layer 26 is located near the submersible sewage pump 7. Figure 11 As shown, the filter device 23 is provided with a high-pressure water inlet 28, and a number of high-pressure nozzle units are evenly provided on the outer side of the filter device 23 along the circumferential direction. Each of the high-pressure nozzle units includes a number of high-pressure nozzles 29. The hydraulic support 1 is provided with a mining intrinsically safe radar water level sensor 3 and a pan-tilt camera 34.

[0033] Example 1

[0034] The working face drainage device based on centralized pump control proposed in this embodiment includes several drainage units arranged side by side, such as... Figure 1 As shown, several drainage units are connected to a start / stop platform 10 via wires, several drainage units are connected to a lifting platform 11 via pipes, and a control platform 30 is also included. Several drainage units are connected to the control platform 30 via wires, and several drainage units are also connected to the control platform 30 via pipes.

[0035] Example 2

[0036] The working face drainage device based on centralized pump control proposed in this embodiment includes several drainage units arranged side by side, such as... Figure 1 As shown, several drainage units are connected to a start / stop platform 10 via wires, and several drainage units are connected to a lifting platform 11 via pipes. The system also includes a control platform 30. Several drainage units are connected to the control platform 30 via wires, and several drainage units are also connected to the control platform 30 via pipes. Figure 2 As shown, the start / stop platform 10 is equipped with several emergency stop interlocking switches 9, and several drainage units are respectively connected to the several emergency stop interlocking switches 9 one-to-one via wires; for example... Figure 3 As shown, the lifting platform 11 is equipped with several control valve groups 12, and several drainage units are respectively connected to the control valve groups 12 one by one through pipes; for example Figure 4 As shown, the control platform 30 is equipped with several water pump start / stop switches 32 and several lifting control switches 33. Several drainage units are also connected to the water pump start / stop switches 32 one by one through wires. Several drainage units are also connected to the lifting control switches 33 one by one through pipes. The control platform 30 is also equipped with an emergency stop button 31. The water pump start / stop switches 32 and the lifting control switches 33 are all connected to the emergency stop button 31 through wires.

[0037] Example 3

[0038] The working face drainage device based on centralized pump control proposed in this embodiment includes several drainage units arranged side by side, such as... Figure 1 As shown, several drainage units are connected to a start / stop platform 10 via wires, and several drainage units are connected to a lifting platform 11 via pipes. The system also includes a control platform 30. Several drainage units are connected to the control platform 30 via wires, and several drainage units are also connected to the control platform 30 via pipes. Figure 2 As shown, the start / stop platform 10 is equipped with several emergency stop interlocking switches 9, and several drainage units are respectively connected to the several emergency stop interlocking switches 9 one-to-one via wires; for example... Figure 3 As shown, the lifting platform 11 is equipped with several control valve groups 12, and several drainage units are respectively connected to the control valve groups 12 one by one through pipes; for example Figure 4As shown, the control platform 30 is equipped with several water pump start / stop switches 32 and several lifting control switches 33. Several drainage units are also connected to the water pump start / stop switches 32 one-to-one via wires, and the drainage units are also connected to the lifting control switches 33 one-to-one via pipes. The control platform 30 is also equipped with an emergency stop button 31, and the water pump start / stop switches 32 and lifting control switches 33 are all connected to the emergency stop button 31 via wires. Figure 5 As shown, the drainage unit includes two hydraulic supports 1, each of which is equipped with two hydraulic support front beams 2. Each of the four hydraulic support front beams 2 is hinged with a hydraulic telescopic cylinder 4. The hydraulic telescopic cylinders 4 are hinged to a water pump unit 6 via a connecting plate 5. The water pump unit 6 includes two submersible sewage pumps 7, which are connected to the two hydraulic telescopic cylinders 4 via the connecting plate 5. It also includes a heavy-duty submersible mud pump 8 and a filter cleaning device 25. The heavy-duty submersible mud pump 8 and the filter cleaning device 25 are connected to two other hydraulic telescopic cylinders 4 via the connecting plate 5. The filter cleaning device 25 is located between the heavy-duty submersible mud pump 8 and the two submersible sewage pumps 7.

[0039] Example 4

[0040] The working face drainage device based on centralized pump control proposed in this embodiment includes several drainage units arranged side by side, such as... Figure 1 As shown, several drainage units are connected to a start / stop platform 10 via wires, and several drainage units are connected to a lifting platform 11 via pipes. The system also includes a control platform 30. Several drainage units are connected to the control platform 30 via wires, and several drainage units are also connected to the control platform 30 via pipes. Figure 2 As shown, the start / stop platform 10 is equipped with several emergency stop interlocking switches 9, and several drainage units are respectively connected to the several emergency stop interlocking switches 9 one-to-one via wires; for example... Figure 3 As shown, the lifting platform 11 is equipped with several control valve groups 12, and several drainage units are respectively connected to the control valve groups 12 one by one through pipes; for example Figure 4 As shown, the control platform 30 is equipped with several water pump start / stop switches 32 and several lifting control switches 33. Several drainage units are also connected to the water pump start / stop switches 32 one-to-one via wires, and the drainage units are also connected to the lifting control switches 33 one-to-one via pipes. The control platform 30 is also equipped with an emergency stop button 31, and the water pump start / stop switches 32 and lifting control switches 33 are all connected to the emergency stop button 31 via wires. Figure 5As shown, the drainage unit includes two hydraulic supports 1, each with two hydraulic support front beams 2. Each of the four hydraulic support front beams 2 is hinged with a hydraulic telescopic cylinder 4. The hydraulic telescopic cylinders 4 are hinged to a water pump unit 6 via a connecting plate 5. The water pump unit 6 includes two submersible sewage pumps 7, each connected to one of the two hydraulic telescopic cylinders 4 via the connecting plate 5. It also includes a heavy-duty submersible mud pump 8 and a filter cleaning device 25. The heavy-duty submersible mud pump 8 and the filter cleaning device 25 are connected to two other hydraulic telescopic cylinders 4 via the connecting plate 5. The filter cleaning device 25 is located between the heavy-duty submersible mud pump 8 and the two submersible sewage pumps 7. Figure 6 As shown, the submersible sewage pump 7 is equipped with a first lifting ring 13, which is connected to the connecting plate 5 via a hinge shaft. The submersible sewage pump 7 is also equipped with a first drain outlet 14, which is connected to the mine's main drainage system via a pipe. Figure 7 As shown, the heavy-duty submersible mud pump 8 is equipped with a second lifting ring 15, which is connected to another connecting plate 5 through a hinge shaft. The heavy-duty submersible mud pump 8 is also equipped with a second drain outlet 16, which is connected to a cable trough arranged above the scraper conveyor through a pipe.

[0041] Example 5

[0042] The working face drainage device based on centralized pump control proposed in this embodiment includes several drainage units arranged side by side, such as... Figure 1 As shown, several drainage units are connected to a start / stop platform 10 via wires, and several drainage units are connected to a lifting platform 11 via pipes. The system also includes a control platform 30. Several drainage units are connected to the control platform 30 via wires, and several drainage units are also connected to the control platform 30 via pipes. Figure 2 As shown, the start / stop platform 10 is equipped with several emergency stop interlocking switches 9, and several drainage units are respectively connected to the several emergency stop interlocking switches 9 one-to-one via wires; for example... Figure 3 As shown, the lifting platform 11 is equipped with several control valve groups 12, and several drainage units are respectively connected to the control valve groups 12 one by one through pipes; for example Figure 4 As shown, the control platform 30 is equipped with several water pump start / stop switches 32 and several lifting control switches 33. Several drainage units are also connected to the water pump start / stop switches 32 one-to-one via wires, and the drainage units are also connected to the lifting control switches 33 one-to-one via pipes. The control platform 30 is also equipped with an emergency stop button 31, and the water pump start / stop switches 32 and lifting control switches 33 are all connected to the emergency stop button 31 via wires. Figure 5As shown, the drainage unit includes two hydraulic supports 1, each with two hydraulic support front beams 2. Each of the four hydraulic support front beams 2 is hinged with a hydraulic telescopic cylinder 4. The hydraulic telescopic cylinders 4 are hinged to a water pump unit 6 via a connecting plate 5. The water pump unit 6 includes two submersible sewage pumps 7, each connected to one of the two hydraulic telescopic cylinders 4 via the connecting plate 5. It also includes a heavy-duty submersible mud pump 8 and a filter cleaning device 25. The heavy-duty submersible mud pump 8 and the filter cleaning device 25 are connected to two other hydraulic telescopic cylinders 4 via the connecting plate 5. The filter cleaning device 25 is located between the heavy-duty submersible mud pump 8 and the two submersible sewage pumps 7. Figure 6 As shown, the submersible sewage pump 7 is equipped with a first lifting ring 13, which is connected to the connecting plate 5 via a hinge shaft. The submersible sewage pump 7 is also equipped with a first drain outlet 14, which is connected to the mine's main drainage system via a pipe. Figure 7 As shown, the heavy-duty submersible mud pump 8 is equipped with a second lifting ring 15, which is connected to another connecting plate 5 via a hinge shaft. The heavy-duty submersible mud pump 8 is also equipped with a second drain outlet 16, which is connected via a pipe to a cable trough located above the scraper conveyor. Figure 8 As shown, the hydraulic telescopic cylinder 4 includes a telescopic cylinder body and a piston rod 18. A third lifting ring 17 is provided on the telescopic cylinder body, and the third lifting ring 17 is connected to the front beam 2 of the hydraulic support via a hinge shaft. A fourth lifting ring 19 is provided at the end of the piston rod 18 away from the third lifting ring 17, and the fourth lifting ring 19 is connected to the connecting plate 5 via a hinge shaft. Figure 9 As shown, one end of the connecting plate 5 is provided with a first through hole 20, and the fourth lifting ring 19 is connected to the connecting plate 5 through a hinge shaft in the first through hole 20. The other end of the connecting plate 5 is provided with a second through hole 21, and the water pump unit 6 is connected to the connecting plate 5 through a hinge shaft in the second through hole 21.

[0043] Example 6

[0044] The working face drainage device based on centralized pump control proposed in this embodiment includes several drainage units arranged side by side, such as... Figure 1 As shown, several drainage units are connected to a start / stop platform 10 via wires, and several drainage units are connected to a lifting platform 11 via pipes. The system also includes a control platform 30. Several drainage units are connected to the control platform 30 via wires, and several drainage units are also connected to the control platform 30 via pipes. Figure 2 As shown, the start / stop platform 10 is equipped with several emergency stop interlocking switches 9, and several drainage units are respectively connected to the several emergency stop interlocking switches 9 one-to-one via wires; for example... Figure 3 As shown, the lifting platform 11 is equipped with several control valve groups 12, and several drainage units are respectively connected to the control valve groups 12 one by one through pipes; for example Figure 4As shown, the control platform 30 is equipped with several water pump start / stop switches 32 and several lifting control switches 33. Several drainage units are also connected to the water pump start / stop switches 32 one-to-one via wires, and the drainage units are also connected to the lifting control switches 33 one-to-one via pipes. The control platform 30 is also equipped with an emergency stop button 31, and the water pump start / stop switches 32 and lifting control switches 33 are all connected to the emergency stop button 31 via wires. Figure 5 As shown, the drainage unit includes two hydraulic supports 1, each with two hydraulic support front beams 2. Each of the four hydraulic support front beams 2 is hinged with a hydraulic telescopic cylinder 4. The hydraulic telescopic cylinders 4 are hinged to a water pump unit 6 via a connecting plate 5. The water pump unit 6 includes two submersible sewage pumps 7, each connected to one of the two hydraulic telescopic cylinders 4 via the connecting plate 5. It also includes a heavy-duty submersible mud pump 8 and a filter cleaning device 25. The heavy-duty submersible mud pump 8 and the filter cleaning device 25 are connected to two other hydraulic telescopic cylinders 4 via the connecting plate 5. The filter cleaning device 25 is located between the heavy-duty submersible mud pump 8 and the two submersible sewage pumps 7. Figure 6 As shown, the submersible sewage pump 7 is equipped with a first lifting ring 13, which is connected to the connecting plate 5 via a hinge shaft. The submersible sewage pump 7 is also equipped with a first drain outlet 14, which is connected to the mine's main drainage system via a pipe. Figure 7 As shown, the heavy-duty submersible mud pump 8 is equipped with a second lifting ring 15, which is connected to another connecting plate 5 via a hinge shaft. The heavy-duty submersible mud pump 8 is also equipped with a second drain outlet 16, which is connected via a pipe to a cable trough located above the scraper conveyor. Figure 8 As shown, the hydraulic telescopic cylinder 4 includes a telescopic cylinder body and a piston rod 18. A third lifting ring 17 is provided on the telescopic cylinder body, and the third lifting ring 17 is connected to the front beam 2 of the hydraulic support via a hinge shaft. A fourth lifting ring 19 is provided at the end of the piston rod 18 away from the third lifting ring 17, and the fourth lifting ring 19 is connected to the connecting plate 5 via a hinge shaft. Figure 9 As shown, one end of the connecting plate 5 has a first through hole 20, and the fourth lifting ring 19 is connected to the connecting plate 5 through the first through hole 20 via a hinge shaft. The other end of the connecting plate 5 has a second through hole 21, and the water pump unit 6 is connected to the connecting plate 5 through the second through hole 21 via a hinge shaft. Figure 10As shown, the filter cleaning device 25 includes a filter device 23, which is horizontally arranged. Fixing devices 27 are fixed to the outer walls of both ends of the filter device 23, and the fixing devices 27 have an "X" shaped structure. It also includes a first filter screen layer 24 and a second filter screen layer 26. The filter device 23 is fixed between the first filter screen layer 24 and the second filter screen layer 26 via the fixing devices 27. It also includes four traction ropes 22. One end of each traction rope is fixed to the second through hole 21 of another connecting plate 5. The other ends of two traction ropes are connected to the top sides of the first filter screen layer 24, and the other two traction ropes are connected to the top sides of the second filter screen layer 26. The porosity of the first filter screen layer 24 is greater than that of the second filter screen layer 26. The first filter screen layer 24 is located near the heavy-duty submersible mud pump 8, and the second filter screen layer 26 is located near the submersible sewage pump 7. Figure 11 As shown, the filter device 23 is provided with a high-pressure water inlet 28, and a number of high-pressure nozzle units are evenly provided on the outer side of the filter device 23 along the circumferential direction. Each of the high-pressure nozzle units includes a number of high-pressure nozzles 29. The hydraulic support 1 is provided with a mining intrinsically safe radar water level sensor 3 and a pan-tilt camera 34.

Claims

1. A working face drainage device based on centralized water pump control, characterized in that, It includes several drainage units arranged side by side, several drainage units connected to a start / stop platform (10) by wires, several drainage units connected to a lifting platform (11) by pipes, and also includes a control platform (30), several drainage units connected to the control platform (30) by wires, and several drainage units also connected to the control platform (30) by pipes.

2. The working face drainage device based on centralized water pump control according to claim 1, characterized in that, The start / stop platform (10) is provided with several emergency stop interlock switches (9), and several drainage units are respectively connected to several emergency stop interlock switches (9) one by one through wires; the lifting platform (11) is provided with several control valve groups (12), and several drainage units are respectively connected to several control valve groups (12) one by one through pipes; the control platform (30) is provided with several water pump start / stop switches (32) and several lifting control switches (33), and several drainage units are also respectively connected to several water pump start / stop switches (32) one by one through wires, and several drainage units are also respectively connected to several lifting control switches (33) one by one through pipes; the control platform (30) is also provided with an emergency stop button (31), and several water pump start / stop switches (32) and several lifting control switches (33) are all connected to the emergency stop button (31) through wires.

3. The working face drainage device based on centralized water pump control according to claim 2, characterized in that, The drainage unit includes two hydraulic supports (1), each of the two hydraulic supports (1) is provided with two hydraulic support front beams (2), and each of the four hydraulic support front beams (2) is hinged with a hydraulic telescopic cylinder (4). The hydraulic telescopic cylinder (4) is hinged with a water pump unit (6) through a connecting plate (5).

4. The working face drainage device based on centralized water pump control according to claim 3, characterized in that, The pump unit (6) includes two submersible sewage pumps (7), which are connected to two hydraulic telescopic cylinders (4) via connecting plates (5). It also includes a heavy-duty submersible mud pump (8) and a filter cleaning device (25), which are connected to two other hydraulic telescopic cylinders (4) via connecting plates (5). The filter cleaning device (25) is located between the heavy-duty submersible mud pump (8) and the two submersible sewage pumps (7).

5. The working face drainage device based on centralized water pump control according to claim 4, characterized in that, The submersible sewage pump (7) is provided with a first lifting ring (13), which is connected to the connecting plate (5) through a hinge shaft. The submersible sewage pump (7) is also provided with a first drain outlet (14), which is connected to the mine's main drainage system through a pipe.

6. The working face drainage device based on centralized water pump control according to claim 5, characterized in that, The heavy-duty submersible mud pump (8) is provided with a second lifting ring (15), which is connected to another connecting plate (5) through a hinge shaft. The heavy-duty submersible mud pump (8) is also provided with a second drain outlet (16), which is connected to a cable trough arranged above the scraper conveyor through a pipe.

7. The working face drainage device based on centralized water pump control according to claim 6, characterized in that, The hydraulic telescopic cylinder (4) includes a telescopic cylinder body and a piston rod (18). The telescopic cylinder body is provided with a third lifting ring (17). The third lifting ring (17) is connected to the front beam (2) of the hydraulic support through a hinge shaft. The piston rod (18) is provided with a fourth lifting ring (19) at one end away from the third lifting ring (17). The fourth lifting ring (19) is connected to the connecting plate (5) through a hinge shaft. One end of the connecting plate (5) is provided with a first through hole (20). The fourth lifting ring (19) is connected to the connecting plate (5) in the first through hole (20) through a hinge shaft. The other end of the connecting plate (5) is provided with a second through hole (21). The water pump unit (6) is connected to the connecting plate (5) in the second through hole (21) through a hinge shaft.

8. The working face drainage device based on centralized water pump control according to claim 7, characterized in that, The filter cleaning device (25) includes a filter device (23), which is horizontally arranged. Fixing devices (27) are fixed to the outer walls of both ends of the filter device (23). The fixing devices (27) have an "X" shaped structure. It also includes a first filter screen layer (24) and a second filter screen layer (26). The filter device (23) is fixed between the first filter screen layer (24) and the second filter screen layer (26) via the fixing devices (27). It also includes four traction ropes (22). One end of the first filter screen (24) is fixed to the second through hole (21) of the other connecting plate (5), and the other ends of the two traction ropes (22) are connected to the top two sides of the first filter screen layer (24). The other ends of the other two traction ropes (22) are connected to the top two sides of the second filter screen layer (26). The porosity of the first filter screen layer (24) is greater than that of the second filter screen layer (26). The first filter screen layer (24) is located near the heavy-duty submersible mud pump (8), and the second filter screen layer (26) is located near the submersible sewage electric pump (7).

9. The working face drainage device based on centralized water pump control according to claim 8, characterized in that, The filter device (23) is provided with a high-pressure water inlet (28), and a number of high-pressure nozzle units are uniformly provided on the outer side of the filter device (23) along the circumferential direction. Each of the high-pressure nozzle units includes a number of high-pressure nozzles (29).

10. The working face drainage device based on centralized water pump control according to claim 9, characterized in that, The hydraulic support (1) is equipped with an intrinsically safe radar water level sensor (3) and a pan-tilt camera (34).

Images