Large-water mine drainage system based on safety production and safety emergency

Abstract

The utility model relates to a large-water mine drainage system based on safety production and safety emergency. The large-water mine drainage system comprises a submersible multi-stage pump, a horizontal multi-stage centrifugal pump, a water ring vacuum pump, a gas-water separator, a water distribution well, a water distribution gate valve, a water distribution roadway, a water suction well, a water suction pipeline, branch drainage pipelines, a main drainage pipeline, an air inlet pipe, an exhaust pipe, an exhaust port and an overflow port. The number of the horizontal multi-stage centrifugal pumps is the same as that of the submersible multi-stage pumps, the flow is the same as or close to that of the submersible multi-stage pumps, and the horizontal multi-stage centrifugal pumps and the submersible multi-stage pumps operate alternately during normal drainage. A power distribution cabinet and an operation box of the submersible multi-stage pump are located in a ground surface wellhead power distribution room, start-stop and operation control is completed on the ground surface, and when the underground water inrush risk or the risk of being flooded exists, the underground submersible multi-stage pump can be started, stopped and operated on the ground surface to be controlled to conduct drainage emergency rescue. Meanwhile, the water-ring vacuum pump and the gas-water separator are arranged in the system and work together, so that stable operation of the system is guaranteed, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The patent application belongs to the technical field of mine drainage equipment, and more particularly relates to a large-water underground mine safety emergency drainage system based on safety production and safety emergency. BACKGROUND

[0002] Mine flood is one of the six disasters in mine safety, which seriously threatens personal and property safety. It is closely related to the mine drainage system. Once the mine water inflow exceeds the drainage capacity, it may cause the mine roadway or mining area to be flooded, and even cause casualties and property losses. If the drainage system is not perfect, it may cause water overflow, and the mine roadway is full of mud, which deteriorates the working environment and adversely affects the safety production. Therefore, the safe operation of the mine drainage system is crucial to the safety production of the mine, especially for large water mines.

[0003] Horizontal centrifugal pumps are widely used in drainage systems due to their stable operation, easy flow adjustment, high efficiency, and convenient maintenance. However, submersible pumps need to be submerged in water to work normally, which has the disadvantage of inconvenient maintenance. Therefore, in the prior art, to meet the safety production requirements, large mine drainage systems often use multiple horizontal centrifugal pumps of the same type. However, when water disaster occurs underground, the centrifugal pumps cannot work normally, and the risk of flooding the pumps is increasing, which may cause the risk to spread. Therefore, it is necessary to design a large water mine drainage system that can meet the needs of mine drainage during normal safety production and emergency drainage during water disaster risk. It can improve the ability of disaster prevention, reduction and emergency disposal of mines. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to provide a large water mine drainage system based on safety production and safety emergency, which can meet the needs of mine drainage during normal safety production and emergency drainage during water disaster risk. It can improve the ability of disaster prevention, reduction and emergency disposal of mines.

[0005] To solve the above problems, the utility model adopts the following technical scheme:

[0006] A large water mine drainage system based on safety production and safety emergency, comprising a plurality of water suction wells and a plurality of water distribution wells, a water distribution gate valve arranged in the water distribution well and the water suction well, a water distribution roadway connected with the water distribution well and the water suction well through the water distribution gate valve, a submersible pump mechanism, a centrifugal pump mechanism, and a water suction and drainage mechanism. The water distribution well is connected with the water suction well through the water distribution roadway.

[0007] The submersible pump mechanism comprises a submersible multi-stage pump in a distribution well or a suction well, a submersible pump distribution cabinet connected with the submersible multi-stage pump through a cable, the submersible pump distribution cabinet is located in a surface wellhead distribution room, and the submersible pump distribution cabinet is connected with a submersible pump operation box through a cable.

[0008] The centrifugal pump mechanism comprises a horizontal multi-stage centrifugal pump in a distribution well or a suction well, a high-voltage motor connected with the horizontal multi-stage centrifugal pump, a centrifugal pump distribution cabinet connected with the high-voltage motor of the horizontal multi-stage centrifugal pump through a cable, a water pump house for the centrifugal pump distribution cabinet, and the centrifugal pump distribution cabinet is connected with a machine-side operation box of the horizontal multi-stage centrifugal pump through a cable.

[0009] The water suction and drainage mechanism comprises a water suction pipeline connected with a suction port of the horizontal multi-stage centrifugal pump, branch drainage pipelines connected with the submersible multi-stage pump and the horizontal multi-stage centrifugal pump, and a total drainage pipeline connected with the branch drainage pipelines of the submersible multi-stage pump and the horizontal multi-stage centrifugal pump, the horizontal multi-stage centrifugal pump and the submersible multi-stage pump share the total drainage pipeline, the water suction pipeline of the horizontal multi-stage centrifugal pump is located in the suction well or the distribution well, the submersible multi-stage pump has no water suction pipeline, the submersible multi-stage pump directly absorbs water without an additional water suction pipeline, and the branch drainage pipelines and the total drainage pipeline are located in the water pump house.

[0010] Further, the water ring pump mechanism comprises a plurality of water ring vacuum pumps connected with the water suction pipeline of the horizontal multi-stage centrifugal pump, an air-water separator connected with the water ring vacuum pumps through an exhaust pipe, an overflow port arranged on one side of the air-water separator, an exhaust port arranged on the top of the air-water separator, and an air inlet pipe arranged on the water ring vacuum pump, the exhaust port is higher than the overflow port, the air inlet pipe of the water ring vacuum pump is connected to the top of the water suction pipeline of the horizontal multi-stage centrifugal pump, the air inlet pipe of the water ring vacuum pump is 300-500 mm higher than the water suction pipeline of the horizontal multi-stage centrifugal pump, the air inlet pipe is higher than the exhaust pipe, and the air inlet pipe is also located in the water pump house.

[0011] Further, the air inlet pipe of the water ring vacuum pump is 350-450 mm higher than the water suction pipeline of the horizontal multi-stage centrifugal pump.

[0012] Further, the submersible multi-stage pump is also provided with a high-voltage motor, and the high-voltage motor of the submersible multi-stage pump is integrally arranged with the submersible multi-stage pump, that is, the high-voltage motor and the submersible multi-stage pump are combined into one.

[0013] Further, the number, flow rate and lift of the horizontal multi-stage centrifugal pump are the same as those of the submersible multi-stage pump.

[0014] Further, the distribution well is provided with two distribution wells, the section size of each distribution well is 6.0*7.0 m, and four distribution sluice valves are arranged in each distribution well.

[0015] Further, the total drainage pipeline is provided with 4 pieces of Φ426*14mm seamless steel pipes; the air inlet pipe is provided with a manual gate and an electric gate valve; the air outlet pipe is provided with a Φ89*4mm seamless steel pipe.

[0016] Further, the branch drainage pipeline and the total drainage pipeline of the submersible multi-stage pump are provided with check valves, manual gate valves, electric gate valves, pressure gauges or flow meters; the branch drainage pipeline and the total drainage pipeline of the horizontal multi-stage centrifugal pump are also provided with check valves, manual gate valves, electric gate valves, pressure gauges or flow meters.

[0017] Further, the water ring vacuum pump is provided with 2 pieces of SK-6 / 380V type, and the air-water separator is provided with 1 piece.

[0018] Due to the adoption of the above technical scheme, the utility model has the beneficial effects of:

[0019] The utility model on one hand meets the needs of mine drainage during normal and safe production of the mine, and on the other hand, when there is a water inrush risk or a risk of being flooded underground, the submersible multi-stage pump can be started and stopped on the ground and controlled to operate to drain water for rescue, and the needs of mine emergency drainage are met when there is a water disaster risk underground, and the ability of disaster prevention and reduction and emergency disposal of the mine is improved. Meanwhile, the water ring vacuum pump and the air-water separator are arranged in the system, and the two work together, guaranteeing stable operation of the system and improving work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure plane schematic diagram of the utility model;

[0021] Figure 2 It is the structure section schematic diagram of the utility model;

[0022] Figure 3 It is the structure schematic diagram of the submersible multi-stage pump of the utility model;

[0023] Figure 4 It is the structure schematic diagram of the horizontal multi-stage centrifugal pump of the utility model;

[0024] Figure 5 It is the structure plane schematic diagram of the water ring vacuum pump and the air-water separator of the utility model;

[0025] Figure 6 It is the structure section schematic diagram of the water ring vacuum pump and the air-water separator of the utility model.

[0026] The numbers in the figure are as follows: submersible multi-stage pump 1, horizontal multi-stage centrifugal pump 2, high-voltage motor 3, water ring vacuum pump 4, gas-water separator 5, water distribution gate valve 6, water distribution well 7, water distribution roadway 8, water suction pipeline 9, branch drainage pipeline 10, total drainage pipeline 11, air inlet pipe 12, air outlet pipe 13, air outlet 14, overflow 15, water pump house 16, water suction well 17. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail in connection with the embodiments.

[0028] A large water mine drainage system based on safety production and safety emergency consideration can meet the needs of mine drainage during normal safety production of the mine, can also meet the needs of mine emergency drainage when water disaster risk occurs in the mine, and improves the ability of disaster prevention, disaster reduction and emergency disposal of the mine.

[0029] The structure is as Figure 1 , comprising a plurality of water suction wells 17 and a plurality of water distribution wells 7, a water distribution gate valve 6 arranged in the water distribution well 7 and the water suction well 17, a water distribution roadway 8 connected with the water distribution well 7 and the water suction well 17 through the water distribution gate valve 6, a submersible pump mechanism, a centrifugal pump mechanism, and a water suction and drainage mechanism, the water distribution well 7 is connected with the water suction well 17 through the water distribution roadway 8.

[0030] The submersible pump mechanism comprises a submersible multi-stage pump 1 located in the water distribution well 7 or the water suction well 17, a submersible pump power distribution cabinet connected with the submersible multi-stage pump 1 through a cable, the submersible pump power distribution cabinet is located in a surface wellhead power distribution room, and the submersible pump power distribution cabinet is connected with a submersible pump operation box through a cable.

[0031] The centrifugal pump mechanism comprises a horizontal multi-stage centrifugal pump 2 located in the water distribution well 7 or the water suction well 17, a high-voltage motor 3 connected with the horizontal multi-stage centrifugal pump 2, a centrifugal pump power distribution cabinet connected with the high-voltage motor 3 of the horizontal multi-stage centrifugal pump 2 through a cable, and a water pump house 16 arranged near the centrifugal pump power distribution cabinet.

[0032] The water suction and drainage mechanism comprises a water suction pipeline 9 connected with a water suction port of the horizontal multi-stage centrifugal pump 2, a branch drainage pipeline 10 connected with a drainage port of the submersible multi-stage pump 1 and the horizontal multi-stage centrifugal pump 2, and a total drainage pipeline 11 connected with the branch drainage pipeline 10 of the submersible multi-stage pump 1 and the horizontal multi-stage centrifugal pump 2, the horizontal multi-stage centrifugal pump 2 shares the total drainage pipeline 11 with the submersible multi-stage pump 1, the water suction pipeline 9 of the horizontal multi-stage centrifugal pump 2 is located in the water suction well 17 or the water distribution well 7, the submersible multi-stage pump 1 has no water suction pipeline 9, the submersible multi-stage pump 1 is directly buried in water to suck water, and no additional water suction pipeline 9 is needed. The branch drainage pipeline 10 and the total drainage pipeline 11 are located in the water pump house 16, and the total drainage pipeline 11 herein refers to the total drainage pipeline in the water pump house.

[0033] The water ring pump mechanism comprises a plurality of water ring vacuum pumps 4 connected with the water suction pipeline 9 of the horizontal multi-stage centrifugal pump 2, an air-water separator 5 connected with the water ring vacuum pump 4 through an exhaust pipe 13, an overflow port 15 arranged at one side of the air-water separator 5, an exhaust port 14 arranged at the top of the air-water separator 5, and an air inlet pipe 12 of the water ring vacuum pump 4. The exhaust port 14 is higher than the overflow port 15. The air inlet pipe 12 of the water ring vacuum pump 4 is connected to the top of the water suction pipeline 9 of the horizontal multi-stage centrifugal pump 2. The elevation of the air inlet pipe 12 of the water ring vacuum pump 4 is 300-500 mm higher than the elevation of the water suction pipeline 9 of the horizontal multi-stage centrifugal pump 2. The air inlet pipe 12 is higher than the exhaust pipe 13 and is also located in the water pump house 16.

[0034] It can be seen that the large water mine drainage system comprises a submersible multi-stage pump 1, a horizontal multi-stage centrifugal pump 2, a high-voltage motor 3, a water ring vacuum pump 4, an air-water separator 5, a water distribution gate valve 6, a water distribution well 7, a water distribution roadway 8, a water suction well 17, a water suction pipeline 9, a branch drainage pipeline 10, a total drainage pipeline 11, an air inlet pipe 12, an exhaust pipe 13, an exhaust port 14, an overflow port 15, and a water pump house 16. The water distribution well 7 is provided with the water distribution gate valve 6, which is connected with a water sump in the underground through one end and is connected with the water distribution roadway 8 through the other end. The water in the water sump is distributed to each water suction well 17 through the water distribution well 7 and the water distribution roadway 8. The water sump is connected with the water distribution well 7 and supplies water to the water distribution well 7 through the water distribution gate valve 6. The water sump is a water sump for storing (collecting) mine drainage.

[0035] The water suction pipeline 9 of the horizontal multi-stage centrifugal pump 2 is located in the water suction well 17 or the water distribution well 7. The branch drainage pipeline 10 of the horizontal multi-stage centrifugal pump 2 is connected with the total drainage pipeline 11, so as to drain the water in the water suction well 17 or the water distribution well 7 to the total drainage pipeline 11 through the horizontal multi-stage centrifugal pump 2.

[0036] The water suction port of the submersible multi-stage pump 1 is located in the water suction well 17 or the water distribution well 7. The branch drainage pipeline 10 of the submersible multi-stage pump 1 is connected with the total drainage pipeline 11, so as to drain the water in the water suction well 17 or the water distribution well 7 to the total drainage pipeline 10 through the submersible multi-stage pump 1. The horizontal multi-stage centrifugal pump 2 and the submersible multi-stage pump 1 share the total drainage pipeline 11.

[0037] The above large water mine drainage system based on safety production and safety emergency, the horizontal multi-stage centrifugal pump 2 is connected with the high-voltage motor 3, and the high-voltage motor 3 of the submersible multi-stage pump 1 is integrated with the submersible multi-stage pump 1. The high-voltage motor 3 of the horizontal multi-stage centrifugal pump 2 is connected with the centrifugal pump distribution cabinet through a cable, and the centrifugal pump distribution cabinet is located in the transformer substation of the underground water pump house 16. The centrifugal pump distribution cabinet is connected with the machine-side operation box of the horizontal multi-stage centrifugal pump 2 through a cable, and the start-stop and operation control is completed in the underground centrifugal pump machine-side operation box. The motor of the submersible multi-stage pump 1 is connected with the submersible pump distribution cabinet through a cable, and the submersible pump distribution cabinet is located in the surface wellhead distribution room. The submersible pump distribution cabinet is connected with the submersible pump operation box through a cable, and the start-stop and operation control is completed on the surface submersible pump machine-side operation box. When there is a water inrush risk or a risk of being flooded underground, the submersible multi-stage pump can be started and stopped and operated on the surface to control the drainage and rescue.

[0038] The above large water mine drainage system based on safety production and safety emergency, the high-voltage motor 3 of the submersible multi-stage pump 1 is integrated with the submersible multi-stage pump 1. The high-voltage motor 3 of the horizontal multi-stage centrifugal pump 2 is connected with the centrifugal pump distribution cabinet through a cable, and the centrifugal pump distribution cabinet is located in the transformer substation of the underground water pump house 16. The centrifugal pump distribution cabinet is connected with the machine-side operation box of the horizontal multi-stage centrifugal pump 2 through a cable, and the start-stop and operation control is completed in the underground centrifugal pump machine-side operation box. The motor of the submersible multi-stage pump 1 is connected with the submersible pump distribution cabinet through a cable, and the submersible pump distribution cabinet is located in the surface wellhead distribution room. The submersible pump distribution cabinet is connected with the submersible pump operation box through a cable, and the start-stop and operation control is completed on the surface submersible pump machine-side operation box. When there is a water inrush risk or a risk of being flooded underground, the submersible multi-stage pump can be started and stopped and operated on the surface to control the drainage and rescue.

[0039] For the convenience of work and management, the number of the horizontal multi-stage centrifugal pump 2 and the submersible multi-stage pump 1 is the same, the flow is the same or close, and the lift is the same or close. During normal drainage, the horizontal multi-stage centrifugal pump 2 and the submersible multi-stage pump 1 are operated alternately. Embodiment

[0040] In this embodiment, the water pump house 16 for main drainage in the well is located in the middle section of -260 m in the well, and the water pump house 16 is provided with 3 ZQ1100-595 / 7-2800 / S submersible multi-stage pumps 1 and 3 D1100-86x7 horizontal multi-stage centrifugal pumps 2. The horizontal multi-stage centrifugal pump 2 is matched with a high-voltage motor 3, and the type of the high-voltage motor 3 is YKK710-4-2800kW-10kV high-voltage asynchronous motor. The high-voltage motor 3 of the submersible multi-stage pump 1 is an integral whole with the submersible multi-stage pump 1. Two water distribution wells 7 are arranged, and the cross-sectional size is 6.0x7.0m. Four water distribution gate valves 6 are arranged in each water distribution well 7, and the type is D=1500 P=0.25MPa. The size of the water suction well 17 corresponding to the submersible multi-stage pump 1 is Φ2.5x19.5m, and the water suction port of the submersible multi-stage pump 1 is 3m away from the well bottom. The size of the water suction well 17 corresponding to the horizontal multi-stage centrifugal pump 2 is Φ2.5x7.5m, and the water suction port of the horizontal multi-stage centrifugal pump 2 is 2.5m away from the well bottom. Four total drainage pipelines 11 are arranged, and Φ426x14mm seamless steel pipes are adopted. Check valves, manual gate valves, electric gate valves, pressure gauges and flow meters are arranged on the water outlet pipelines of the submersible multi-stage pump 1 and the horizontal multi-stage centrifugal pump 2.

[0041] Two SK-6 / 380V water ring vacuum pumps 4 and one gas-water separator 5 are arranged. The air inlet pipe 12 of the water ring vacuum pump 4 is connected to the top of the water suction pipeline 9 of the horizontal multi-stage centrifugal pump 2, and the elevation of the air inlet pipe 12 is about 500mm higher than that of the water inlet pipeline 9 of the horizontal multi-stage centrifugal pump 2. The air inlet pipe 12 adopts Φ89x4mm seamless steel pipe, and the air inlet pipe 12 is provided with a manual gate and an electric gate valve. The exhaust pipe 13 adopts Φ89x4mm seamless steel pipe. The gas-water separator 5 has a diameter of 500mm and a height of 690mm. The top is provided with an exhaust port 14, and one side is provided with an overflow port 15 about 50mm away from the top. The mixture of gas and water in the drainage system is separated in the gas-water separator 5, the gas is discharged through the exhaust port 14, and the water remains in the gas-water separator 5. The excess water overflows through the overflow port 15 to the ground ditch and then flows into the water suction well 17. The water ring vacuum pump 4 and the gas-water separator 5 work together to ensure the stable operation and efficient work of the drainage system.

[0042] In this embodiment, the power distribution cabinet and the machine-side operation box of the horizontal multi-stage centrifugal pump 2 are both in the underground power distribution room and the water pump house 16, and the start-stop and operation control is completed underground. The power distribution cabinet and the machine-side operation box of the submersible multi-stage pump 1 are located in the surface wellhead power distribution room, and the start-stop and operation control is completed on the surface. When there is a water inrush risk or a risk of being flooded in the well, the submersible multi-stage pump 1 in the well can be started, stopped and controlled on the surface to carry out drainage rescue.

Claims

1. A large mine drainage system based on safety production and safety emergency consideration, characterized in that: The water supply system comprises a plurality of water suction wells (17) and a plurality of water distribution wells (7), water distribution valves (6) arranged in the water distribution wells (7) and the water suction wells (17), water distribution channels (8) connected with the water distribution wells (7) and the water suction wells (17) through the water distribution valves (6), a submersible pump mechanism, a centrifugal pump mechanism and a water suction and discharge mechanism, the water distribution wells (7) are connected with the water suction wells (17) through the water distribution channels (8). The submersible pump mechanism comprises a submersible multi-stage pump (1) arranged in the water distribution well (7) or the water suction well (17), and a submersible pump distribution cabinet connected with the submersible multi-stage pump (1) through a cable, wherein the submersible pump distribution cabinet is arranged in a surface wellhead distribution room, and the submersible pump distribution cabinet is connected with a submersible pump operation box through a cable. The centrifugal pump mechanism comprises a horizontal multi-stage centrifugal pump (2) arranged in the water distribution well (7) or the water suction well (17), a high-voltage motor (3) connected with the horizontal multi-stage centrifugal pump (2), a centrifugal pump distribution cabinet connected with the high-voltage motor (3) of the horizontal multi-stage centrifugal pump (2) through a cable, and a water pump house (16) arranged near the centrifugal pump distribution cabinet, wherein the centrifugal pump distribution cabinet is connected with a machine-side operation box of the horizontal multi-stage centrifugal pump (2) through a cable. The water suction and discharge mechanism comprises a water suction pipeline (9) connected with a water suction port of the horizontal multi-stage centrifugal pump (2), branch water discharge pipelines (10) connected with water discharge ports of the submersible multi-stage pump (1) and the horizontal multi-stage centrifugal pump (2), and a total water discharge pipeline (11) connected with the branch water discharge pipelines (10) of the submersible multi-stage pump (1) and the horizontal multi-stage centrifugal pump (2), wherein the horizontal multi-stage centrifugal pump (2) shares the total water discharge pipeline (11) with the submersible multi-stage pump (1), the water suction pipeline (9) of the horizontal multi-stage centrifugal pump (2) is arranged in the water suction well (17) or the water distribution well (7), and the branch water discharge pipelines (10) and the total water discharge pipeline (11) are arranged in the water pump house (16).

2. The large mine drainage system based on safety production and safety emergency consideration according to claim 1, characterized in that: The water ring pump mechanism comprises a plurality of water ring vacuum pumps (4) connected with the water suction pipeline (9) of the horizontal multi-stage centrifugal pump (2), an air-water separator (5) connected with the water ring vacuum pumps (4) through an exhaust pipe (13), an overflow port (15) arranged on one side of the air-water separator (5), an exhaust port (14) arranged on the top of the air-water separator (5), and an air inlet pipe (12) arranged on the water ring vacuum pump (4), wherein the exhaust port (14) is higher than the overflow port (15), the air inlet pipe (12) of the water ring vacuum pump (4) is connected with the top of the water suction pipeline (9) of the horizontal multi-stage centrifugal pump (2), the air inlet pipe (12) of the water ring vacuum pump (4) is 300-500 mm higher than the water suction pipeline (9) of the horizontal multi-stage centrifugal pump (2), the air inlet pipe (12) is higher than the exhaust pipe (13), and the air inlet pipe (12) is also arranged in the water pump house (16).

3. The mine drainage system based on the combination of safety production and safety emergency according to claim 2, characterized in that: The air inlet pipe (12) of the water ring vacuum pump (4) is 350-450 mm higher than the water suction pipeline (9) of the horizontal multi-stage centrifugal pump (2).

4. The large mine drainage system based on safety production and safety emergency consideration according to claim 1, characterized in that: The submersible multi-stage pump (1) is also provided with a high-voltage motor (3), and the high-voltage motor (3) of the submersible multi-stage pump (1) is arranged integrally with the submersible multi-stage pump (1).

5. The large mine drainage system based on safety production and safety emergency consideration according to claim 1, characterized in that: The horizontal multi-stage centrifugal pump (2) has the same number, flow rate and lift as the submersible multi-stage pump (1).

6. The mine drainage system based on the combination of safety production and safety emergency according to any one of claims 1-5, characterized in that: The water distribution well (7) is provided with two sections with a size of 6.0*7.0m, and four water distribution gate valves (6) are arranged in each water distribution well (7).

7. The mine drainage system based on the combination of safety production and safety emergency according to any one of claims 1-5, characterized in that: The total drainage pipeline (11) is provided with four Φ426*14mm seamless steel pipes, the air inlet pipe (12) is a Φ89*4mm seamless steel pipe, and a manual gate and an electric gate valve are arranged on the air inlet pipe (12); the exhaust pipe (13) is a Φ89*4mm seamless steel pipe.

8. The mine drainage system based on the combination of safety production and safety emergency according to any one of claims 1-5, characterized in that: Check valves, manual gate valves, electric gate valves, pressure gauges or flow meters are arranged on the branch drainage pipelines (10) and the total drainage pipelines (11) of the submersible multi-stage pump (1), and check valves, manual gate valves, electric gate valves, pressure gauges or flow meters are also arranged on the branch drainage pipelines (10) and the total drainage pipelines (11) of the horizontal multi-stage centrifugal pump (2).

9. The mine drainage system based on the combination of safety production and safety emergency according to any one of claims 2-5, characterized in that: The water ring vacuum pump (4) is provided with two SK-6 / 380V type water ring vacuum pumps, and the air-water separator (5) is one air-water separator.

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