Underground mining water supply system

Abstract

The invention relates to the technical field of mine water supply and drainage systems, in particular to an underground mine water supply system. The bottom of the open pit is provided with a water drain pipe, the bottom end of the water drain pipe is provided with a first electric valve and connected with a water drain transverse pipe, the water drain transverse pipe is connected with a communicating vessel, the communicating vessel is connected with a water supply pipe, and a water supplementing pipe is arranged between the pool and the communicating vessel. And a second electric valve in control connection with the liquid level sensor is arranged on the water replenishing pipe. The drain pipe at the bottom of the open-air pit is connected with the water supply pipe through the drain transverse pipe and the communicating vessel, natural flow guide of accumulated water deposited in the open-air pit to an underground water supply system is achieved through the gravity self-flowing principle, repeated construction of a traditional independent water pump is reduced, and the equipment investment cost is reduced; when the water level in the communicating vessel is lower than a set threshold value, a water supplementing pipe is automatically opened to supplement water to the system, and the water supply pressure is kept stable.

Description

Technical Field

[0001] The invention relates to the technical field of mine water supply and drainage systems, in particular to an underground mine water supply system. Background Art

[0002] The mining activities of mines and open pits often overlap in space due to geological conditions and resource distribution. Traditional mine mining needs to extend to the ore body through the underground tunnel system, while the open pit directly exposes the ore body by stripping the surface cover layer. The two often form a composite structure of "well-pit coordination" in complex mining areas. In this mode, both the water accumulation at the bottom of the open pit and the water gushing underground need to be treated. The water supply and drainage system is a general term for the mine water supply system and drainage system. It is a combination of drainage collection, transportation, water quality treatment and water supply facilities in a certain way. The water supply and drainage system is an important system for safe production. The existing mine water supply and drainage system is to set up a water tank and a water pump room in the lowest middle section of the mine, and also set up a water pump at the bottom of the open pit. The water is pumped to the pool at the auxiliary shaft tower on the surface. After settling in the pool, it is led to the various production middle sections of the mine through the water supply system. This method requires a large number of water pumps, pipes and other equipment in the early stages of construction, with high operating and maintenance costs and high power consumption. The open-pit mine water accumulation requires the installation of additional independent water pumps, which are separated from the underground drainage system, resulting in duplicate construction and energy waste. Water pumps, valves and other equipment operate at high loads for a long time, with a high failure rate. Summary of the invention

[0003] The present invention aims to solve the above-mentioned problem, thereby providing an underground mining water supply system which avoids energy waste.

[0004] The present invention solves the above-mentioned problem by adopting the following technical solution: An underground mining water supply system comprises a water pool at an open pit and an auxiliary shaft tower, a drain pipe is arranged at the bottom of the open pit, a first electric valve is arranged at the bottom of the drain riser and is connected to a drainage transverse pipe, a communicating vessel is connected to the drainage transverse pipe, a water supply pipe is connected to the communicating vessel, a water supply pipe is arranged between the water pool and the communicating vessel, a liquid level sensor is arranged in the communicating vessel, and a second electric valve connected to the liquid level sensor is arranged on the water supply pipe.

[0005] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: The drainage pipe at the bottom of the open pit is connected to the water supply pipe through the drainage cross pipe and the communicating vessel, and the principle of gravity flow is used to realize the natural diversion of the accumulated water in the open pit to the underground water supply system, thereby reducing the duplication of traditional independent water pumps and reducing the equipment investment cost. The communicating vessel and the second electric valve are controlled in linkage: when the water level in the communicating vessel is lower than the set threshold, the water supply pipe is automatically opened to replenish water to the system to maintain a stable water supply pressure. The water pool and the water supply pipe form a closed-loop regulation, reducing the frequency of high-load operation of the water pump and reducing energy consumption. The accumulated water in the open pit is directly used for underground production water supply through the communicating vessel, realizing the recycling of water resources and reducing external energy consumption.

[0006] Preferably, a further technical solution of the present invention is: Furthermore, the communicating vessel includes a vertical pipe connected to the middle part of the drainage horizontal pipe, and the end of the drainage horizontal pipe away from the drain pipe is connected to the pressure reducing water tank. The vertical pipe and the pressure reducing water tank are both open structures. The water supply pipe is connected to the bottom of the pressure reducing water tank. The water supply pipe is located between the pool and the pressure reducing water tank, and the liquid level sensor is located in the pressure reducing water tank.

[0007] Furthermore, a high water level line and a low water level line are marked inside the pressure reducing water tank, and the top of the riser is located between the high water level line and the top of the pressure reducing water tank.

[0008] Furthermore, an overflow pool is provided at the bottom of the riser. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention; Marked in the figure are: open pit 1, water pool 2, drain pipe 3, first electric valve 4, drainage horizontal pipe 5, water supply pipe 6, water supply pipe 7, vertical pipe 8, pressure reducing water tank 9, overflow pool 10, second electric valve 11. DETAILED DESCRIPTION

[0010] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0011] An underground mining water supply system comprises an open pit 1 and a water pool 2 at a tower of an auxiliary shaft, a drain pipe 3 is arranged at the bottom of the open pit 1, a first electric valve 4 is arranged at the bottom of the drain pipe 3 and is connected to a drainage transverse pipe 5, a communicating vessel is connected to the drainage transverse pipe 5, a water supply pipe 7 is connected to the communicating vessel, and the water supply pipe 7 supplies water to each production middle section of the mine, a water supply pipe 6 is arranged between the water pool 2 and the communicating vessel, a liquid level sensor is arranged in the communicating vessel, and a second electric valve 11 controlled and connected to the liquid level sensor is arranged on the water supply pipe 6, and automatic water replenishment is realized by utilizing the communicating vessel principle.

[0012] Furthermore, the communicating vessel includes a vertical pipe 8 connected to the middle of the drainage transverse pipe 5, and the end of the drainage transverse pipe 5 away from the drain pipe 3 is connected to the pressure reducing water tank 9. The vertical pipe 8 and the pressure reducing water tank 9 are both open structures. The water supply pipe 7 is connected to the bottom of the pressure reducing water tank 9, and the water supply pipe 7 is located between the pool and the pressure reducing water tank 9. The liquid level sensor is located in the pressure reducing water tank 9. The liquid level sensor and the second electric valve 11 are linked to control the flow of the water supply pipe 6 to achieve automatic water level adjustment, avoid manual intervention errors, and improve system stability. When the liquid level sensor detects that the water level of the pressure reducing water tank 9 is lower than the water supply level, the second electric valve 11 opens to replenish water to the pressure reducing water tank 9. When the liquid level sensor detects that the water level of the pressure reducing water tank 9 reaches the high water level, the second electric valve 11 automatically closes. The bottom of the pressure reducing water tank 9 is connected to the water supply pipe 7, and gravity is directly used to supply water to the middle section of the mine, simplifying the structure of the water supply system and reducing the demand for secondary pressurization equipment.

[0013] Furthermore, the pressure reducing water tank 9 is marked with a high water level and a low water level. The top of the riser 8 is located between the high water level and the top of the pressure reducing water tank 9. The high water level limits the maximum capacity of the pressure reducing water tank 9 to prevent overflow; the low water level triggers the start of the water replenishment pump to ensure the continuity of water supply and the safety of the equipment. The top of the riser 8 is higher than the high water level to avoid the siphon effect that causes the pressure reducing water tank 9 to be emptied, thus ensuring the long-term stable operation of the system. Furthermore, an overflow pool 10 is provided at the bottom of the riser 8 to collect overflow water from the riser 8 to prevent the water flow from impacting the ground and causing secondary pollution or equipment corrosion.

[0014] The drainage pipe 3 at the bottom of the open pit 1 is connected to the water supply pipe 7 through the drainage horizontal pipe 5, the vertical pipe 8 and the pressure reducing water tank 9, and the principle of gravity flow is used to realize the natural diversion of the accumulated water in the open pit 1 to the underground water supply system, thereby reducing the duplication of traditional independent water pumps and reducing the equipment investment cost. The liquid level sensor and the second electric valve 11 are linked for control: when the water level in the pressure reducing water tank 9 is lower than the set threshold, the water supply pipe 6 is automatically opened to replenish water to the system to maintain a stable water supply pressure. The water tank 2 and the water supply pipe 6 form a closed-loop regulation to reduce the high-load operation frequency of the water pump and reduce energy consumption. The accumulated water in the open pit 1 is directly used for underground production water supply through the communicating vessel, thereby realizing the recycling of water resources and reducing external energy consumption.

[0015] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. An underground mining water supply system, comprising a water pool at an open pit and a secondary shaft tower, characterized in that: A drain pipe is provided at the bottom of the open pit, a first electric valve is provided at the bottom end of the drain riser and is connected to a drainage transverse pipe, a communicating vessel is connected to the drainage transverse pipe, a water supply pipe is connected to the communicating vessel, a water supply pipe is provided between the water pool and the communicating vessel, a liquid level sensor is provided in the communicating vessel, and a second electric valve controlled by the liquid level sensor is provided on the water supply pipe.

2. The underground mining water supply system according to claim 1, characterized in that: The communicating vessel includes a vertical pipe connected to the middle of the drainage horizontal pipe, and the end of the drainage horizontal pipe away from the drain pipe is connected to the pressure reducing water tank. Both the vertical pipe and the pressure reducing water tank are open structures. The water supply pipe is connected to the bottom of the pressure reducing water tank. The water supply pipe is located between the pool and the pressure reducing water tank, and the liquid level sensor is located in the pressure reducing water tank.

3. The underground mining water supply system according to claim 2, characterized in that: A high water level line and a low water level line are marked inside the pressure reducing water tank, and the top of the riser is located between the high water level line and the top of the pressure reducing water tank.

4. The underground mining water supply system according to claim 2, characterized in that: An overflow pool is provided at the bottom of the riser.

Images