Water supply and drainage system for mining area production

Abstract

The invention discloses a water supply and drainage system for mining area production, which comprises a water taking subsystem, a living water supply subsystem, a fire water supply subsystem, a circulating water subsystem, a tailing concentration tank overflow circulating water subsystem, a tailing pond water return subsystem and a drainage subsystem, all subsystems are matched with one another, so that all water demands of a tailing recovery production area can be met conveniently, tailing recovery can be assisted conveniently, company benefits are greatly improved, meanwhile, needed water is basically consumed by the system, environmental pollution caused by discharge of generated wastewater to the periphery is avoided, and the economic benefits of enterprises are improved. The purposes of effectively reducing the loss of the tailings, reducing the workload of the sedimentation tank, reducing the cleaning cost of the sedimentation tank and reducing the natural stacking time of the tailings are achieved.

Description

Technical Field

[0001] The invention belongs to the field of water supply and drainage systems for mining production, and relates to a water supply and drainage system for mining production. Background Art

[0002] Efficient and scientific recycling of our company's tailings, recovery of titanium resources and sand and gravel aggregate resources therein, not only turns waste into treasure, but also brings good economic benefits, realizes a virtuous cycle of resource economy and coordinated and sustainable development of enterprises, society and environment. The raw materials screened and recycled are the tailings of our ore dressing plant. Although the tailings have been comprehensively recycled and utilized in the titanium dressing workshop, compared with the advanced enterprises in the Panxi area, its metal recovery rate is not high, and some ilmenite and sand and gravel aggregates are lost in the tailings.

[0003] Further recovery and utilization of the effective components in the tailings can effectively reduce the loss of tailings, reduce the workload of the sedimentation tank, reduce the cost of cleaning the sedimentation tank, and reduce the natural stacking time of tailings compared with traditional methods. Tailings recovery can effectively reduce the loss of tailings and control it below 3% (calculated by volume), effectively reduce the content of effective components in the tailings water, and effectively solve the pollution of the environment by tailings and meet the emission standards required by environmental protection.

[0004] The recovery of tailings requires the use of a large amount of water to solve the water needs of production, fire fighting, domestic water intake, purification, transportation, tailings pond backwater, tailings concentration backwater, slurry transportation in the internal process of the ore dressing plant, tailings transportation, etc., while the existing tailings recovery mining areas are not equipped with corresponding water supply and drainage systems, which makes it difficult to meet the production, fire fighting, and domestic water needs of the tailings recovery plant. Therefore, in order to solve the above-mentioned technical problems, the technical solution of the present application is set up. Summary of the invention

[0005] The purpose of the present invention is to provide a water supply and drainage system for mining production, which solves the above-mentioned technical problems.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A water supply and drainage system for mining production, including the following subsystems:

[0008] Water intake subsystem

[0009] The water intake point is located beside the river 450m away from the return water pump pool of the ore dressing plant. The water intake point adopts the method of building dams to block sand and store water. The water delivery method adopts a DN500 water delivery steel pipe to flow along the river into the overflow return water pump pool of the tailings thickener. The new water is collected and merged into the circulating water system of the ore dressing plant. The water delivery pipeline is about 450m long. Solenoid valves and flow meters are installed on the pipeline to control and measure the water delivery volume. The total water intake is 5448.00m3 / d, the maximum is 227.00m 3 / h;

[0010] Domestic water supply subsystem

[0011] Domestic water is used for living and showering in the living area of ​​the ore dressing plant and for living water for the workers in the production workshop. The new water from the domestic water source is treated and disinfected by an integrated water purifier and then pumped to a height of 150m by a water pump. 3 Domestic clean water tank: The domestic water of the ore dressing plant is supplied by gravity flow of the water pipe network. The domestic water pipeline to the living area of ​​the ore dressing plant adopts DN100 galvanized steel pipe, about 750m long;

[0012] Fire water supply subsystem

[0013] The fire water supply system of the ore dressing plant supplies fire water to the production facilities of the ore dressing plant; the largest fire water consumption is cooling water; the fire water consumption is 216m 3 ; According to the maximum fire water consumption, it is stored in the ore dressing plant 1200m 3 The water supply pipe is the tailings pond return water supply pipe in the high-level fire water pool. The high-level fire water pool uses a D529×7 welded steel pipe as a gravity fire water supply pipe to supply water to various fire water points and cooling water points in the ore dressing plant, and outdoor fire hydrants are installed at appropriate locations in the plant area;

[0014] Circulating water subsystem

[0015] The circulating water is used for dust removal, first to third stage grinding and classification, pre-selection magnetic separation, first to fifth stage magnetic separation, fine screening, sweeping magnetic separation, gravity separation of titanium, iron removal magnetic separation and floor washing in the ore dressing plant; the circulating water includes the overflow circulating water of the tailings thickener and the return water of the tailings pond, of which the overflow circulating water of the tailings thickener is 3585.12m 3 / h, the tailings pond backwater volume is 497.99m 3 / h, used for fire fighting water and cooling water;

[0016] Tailings thickening pond overflow circulating water subsystem

[0017] The overflow return water volume of the tailings thickener is 3585.12m 3 / h, and 227.00m of new water from the river 3 / h, a total of 3812.14m 3 / h flows by gravity into the tailings thickener overflow return water pump pool; the water pump is self-priming and started; it is transported to the high-level circulating water pool through three DN500 welded steel pipes; two of the DN500 welded steel pipes are equipped with diverter valves to feed 800m 3The special circulating water pool for high-level titanium selection supplies water; the new water and overflow return water pump station is located in the north of the tailings booster pump station, which is an above-ground pump station with an elevation of 1495.00m; the return water pump pool has a size of 11.2m×5.6m×3.5m;

[0018] Tailings pond return water subsystem

[0019] The distance from the concentrator to the starting pump station is about 3.5 km. Considering the evaporation and leakage in the reservoir, the return water volume of the tailings reservoir is 70%, which is 270.48 m 3 / h, the backwater in the reservoir is discharged from the flood discharge tunnel, the stilling pool at the tunnel outlet is at an elevation of 1648m, the bottom elevations of the high-level circulating water pool and high-level fire water pool of the ore dressing plant are both 1585m, and the backwater of the tailings pond is transported by gravity to the high-level fire water pool of the ore dressing plant through a DN500 steel pipe;

[0020] Drainage subsystem

[0021] Domestic sewage from the living area of ​​the ore dressing plant is discharged into an outdoor septic tank for treatment. The canteen sewage is treated in a grease trap and then collected in an outdoor septic tank for treatment. It is then discharged into the domestic sewage treatment system for treatment and finally reused as reclaimed water and merged into the new water and overflow return pump pool for recycling. Under normal production conditions, there is no external wastewater discharge.

[0022] The wastewater from dust removal and floor washing in the ore dressing plant is collected through open and concealed ditches and discharged into the tailings thickening pond for treatment together with the tailings, and the overflow water is recycled.

[0023] Furthermore: the quality requirement for new water production is that the suspended matter content is ≤30mg / l; the quality requirement for circulating water is that the suspended matter content is ≤200mg / l; there is no requirement for the water quality of reused water; the water supply pressure of each water point is ≥0.30MPa.

[0024] Further: The fire water consumption of the mining site is 15L / s. The number of fires in the same period is one, and the fire water consumption for one fire is 108m 3 The firefighting water consumption of the explosives depot is 25L / s. The number of fires that occur at the same time is one, and the water consumption for one firefighting is 216m 3 The fire water consumption of the ore dressing plant is 30L / s. The number of fires in the same period is one, and the fire water consumption is 270m 3 ; Set up a high-level fire water tank and fire pipe network, and the pressure of the water supply point shall be greater than 0.1MPa.

[0025] Furthermore: the height difference of each circulating water point in the concentrator is not large and in order to ensure the water supply balance, a high-level circulating water pool is built at an elevation of 1585m (pool bottom), V = 2000m 3 , divided into two compartments; the tailings pond return water is transported by gravity to 1200m 3The remaining water in the high-level fire water pool, the overflow water from the tailings thickening pool and the new water for production are all sent to the high-level circulating water pool; the high-level circulating water pool uses a D630×7 welded steel pipe as a gravity water supply pipe to supply water to each water point of the iron selection system of the ore dressing plant; the circulating water supply of the titanium selection system is set at 800m 3 The dedicated water pool for high-level circulating water is located in the middle of the roller mill building and the second-stage closed-circuit screening room. The bottom elevation of the pool is 1536.50m, and the main gravity water supply pipe is a D630×7 welded steel pipe.

[0026] Furthermore: the high-level circulating water tank D630×7 gravity water supply pipe and the high-level fire water tank D529×7 gravity fire water supply pipe are provided with interconnecting pipes and gate valves inside the grinding and selection workshop, and the two can supply water to each other in an emergency.

[0027] Furthermore: the circulating water supply system of the entire ore dressing plant is formed to be easy to meet the needs, and the production circulating water required by each plant is directly connected to the circulating water supply pipeline of the titanium selection workshop.

[0028] Further: the pump pool is equipped with four DFSS400-6NB split-type single-stage centrifugal pumps Q = 1500m3 / h, H = 110m, n = 1480r / min, motor model YKK500-4 protection level IP54, N = 710kW, V = 6000v; two SLOW200-660AT water pumps Q = 530m 3 / h, H=120m, n=1480r / min, distribution motor YKK400-4, N=315kW, V=6000v.

[0029] Further: Model NXB4000m 2 The inclined plate concentrator overflows, and the return water volume is 704.72m 3 / h, all flows by gravity into the tailings thickener overflow return pump pool.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. A water supply and drainage system for mining production. This system is convenient for meeting all water needs in the tailings recovery production area, and thus facilitates tailings recovery, greatly improving the company's benefits;

[0032] 2. In the present invention, by setting up a circulating water utilization subsystem, the required water is basically consumed by the system of the present application, avoiding the generation of wastewater discharged into the surrounding area to cause environmental pollution. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the specification can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the specification is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0035] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0037] Embodiment 1

[0038] The present invention discloses a water supply and drainage system for production in a mining area. The specific implementation method of this embodiment is as follows: a water intake point is set beside a river 450m away from a return water pump pool of a mineral processing plant. The water intake point adopts a dam-building sand-blocking and water-storage method to take water. A DN500 water delivery steel pipe is used to flow along the river into the overflow return water pump pool of a tailings thickener by gravity. The taken new water is merged into the circulating water system of the mineral processing plant. The water delivery pipeline is about 450m long. An electromagnetic valve and a flow meter are installed on the pipeline to control and measure the water delivery volume. The total amount of water taken is 5448.00m 3 / d, the maximum is 227.00m 3 / h;

[0039] Domestic water is used for living and showering in the living area of ​​the ore dressing plant and for living water for the workers in the production workshop. The new water from the domestic water source is treated and disinfected by an integrated water purifier and then pumped to a height of 150m by a water pump.3 Domestic clean water tank: The domestic water of the ore dressing plant is supplied by gravity flow of the water pipe network. The domestic water pipeline to the living area of ​​the ore dressing plant adopts DN100 galvanized steel pipe, about 750m long;

[0040] According to the "Code for Fire Protection Design of Buildings" GB 50016-2014 (2018 Edition) and the "Technical Specifications for Fire Water Supply and Fire Hydrant Systems" GB50974-2014:

[0041] 1) The design flow rate of outdoor fire hydrants for primary fire extinguishing of Class D and Class E factories with fire resistance grades of one or two and building volume of 20,000m3<V(m3)≤50,000m3 shall not be less than 15L / s;

[0042] 2) Base area ≤ 1000000m 3 When , the number of fires in the same period of time is 1;

[0043] 3) When a low-pressure water supply system is used for outdoor fire hydrant water supply, the water pressure at the outdoor fire hydrant outlet should not be less than 0.1MPa from the outdoor ground;

[0044] 4) The duration of fire in Class D and Class E factories is 2 hours;

[0045] According to the above, the fire water consumption is 15L / s, the fire occurs once, the fire lasts for 2h, and the water consumption of a fire hydrant is 108m 3 .

[0046] The fire water supply system of the ore dressing plant supplies fire water to the production facilities of the ore dressing plant; the largest fire water consumption is cooling water; the fire water consumption is 216m 3 ; According to the maximum fire water consumption, it is stored in the ore dressing plant 1200m 3 In the high-level fire water pool, the water supply pipe is the tailings pond return water supply pipe. The high-level fire water pool uses a D529×7 welded steel pipe as a gravity fire water supply pipe to supply water to various fire water points and cooling water points in the ore dressing plant, and outdoor fire hydrants are installed at appropriate locations in the plant.

[0047] The fire water supply system is designed as a part of the fire water supply system of the ore dressing plant; the water consumption of a fire hydrant is 108m 3 ; Fire-fighting water is supplied by the existing fire-fighting pipeline network in the beneficiation plant. The pressure at the water supply point shall not be less than 0.1MPa. Outdoor fire hydrants shall be set up along the road. When the road width is greater than 60m, fire hydrants shall be set up on both sides of the road and preferably close to the intersection. The fire hydrant shall be no more than 2m away from the roadside and no less than 5m away from the outer wall of the house. The spacing between fire hydrants shall not be greater than 120m.

[0048] Embodiment 2

[0049] The present invention discloses a water supply and drainage system for production in a mining area. The specific implementation method of this embodiment is as follows: the circulating water is used for dust removal in the ore dressing plant, one to three stages of grinding and classification, pre-selection magnetic separation, one to five stages of magnetic separation, fine screening, sweeping magnetic separation, gravity separation of titanium, iron removal magnetic separation and floor washing; the circulating water includes two parts: the overflow circulating water of the tailings thickener and the return water of the tailings pond, wherein the overflow circulating water volume of the tailings thickener is 3585.12m 3 / h, the tailings pond backwater volume is 497.99m 3 / h, used for fire fighting water and cooling water.

[0050] The height difference of each circulating water point in the concentrator is not large and in order to ensure the water supply balance, a high-level circulating water pool was built at an elevation of 1585m (pool bottom), V = 2000m 3 , divided into two compartments; the tailings pond return water is transported by gravity to 1200m 3 The remaining water in the high-level fire water pool, the overflow water from the tailings thickening pool and the new water for production are all sent to the high-level circulating water pool; the high-level circulating water pool uses a D630×7 welded steel pipe as a gravity water supply pipe to supply water to each water point of the iron selection system of the ore dressing plant; the circulating water supply of the titanium selection system is set at 800m 3 The dedicated water pool for high-level circulating water is located in the middle of the roller mill building and the second-stage closed-circuit screening room. The bottom elevation of the pool is 1536.50m, and the main gravity water supply pipe is a D630×7 welded steel pipe.

[0051] The high-level circulating water pool D630×7 gravity water supply pipe and the high-level fire water pool D529×7 gravity fire water supply pipe are equipped with interconnecting pipes and gate valves inside the grinding and selection workshop. In an emergency, the two can supply water to each other, making the circulating water supply system of the entire ore dressing plant easy to meet the needs. The production circulating water required by each plant is directly connected to the circulating water supply pipe of the self-selected titanium workshop.

[0052] Embodiment 3

[0053] The present invention provides a water supply and drainage system for mining production. The specific implementation method of this embodiment is as follows: the overflow return water volume of the tailings thickener is 3585.12m 3 / h, and 227.00m of new water from the river 3 / h, a total of 3812.14m 3 / h gravity flows into the tailings thickener overflow return water pump pool; the pump pool is equipped with four DFSS400-6NB split-type single-stage centrifugal pumps Q = 1500m3 / h, H = 110m, n = 1480r / min, motor model YKK500-4 protection level IP54, N = 710kW, V = 6000v; two SLOW200-660AT water pumps Q = 530m 3 / h, H = 120m, n = 1480r / min, distribution motor YKK400-4, N = 315kW, V = 6000v, the water pump adopts self-priming start; it is transported to the high-level circulating water pool through three DN500 welded steel pipes; two of the DN500 welded steel pipes are equipped with diverter valves to supply 800m 3 The high-level titanium selection special circulating water pool supplies water; the new water and overflow return water pump station is located in the north of the tailings booster pump station, which is an above-ground pump station with an elevation of 1495.00m; the return water pump pool has a size of 11.2m×5.6m×3.5m.

[0054] Model: NXB4000m 2 The inclined plate concentrator overflows, and the return water volume is 704.72m 3 / h, all flows by gravity into the tailings thickener overflow return pump pool.

[0055] Embodiment 4

[0056] The present invention discloses a water supply and drainage system for mining production. The specific implementation method of this embodiment is as follows: the distance from the ore dressing plant to the starting pump station is about 3.5 km. Considering the evaporation and leakage in the reservoir, the return water volume of the tailings reservoir is calculated as 70%, which is 270.48 m 3 / h, the backwater in the reservoir is discharged through the flood discharge tunnel, the stilling pool at the tunnel outlet is at an elevation of 1648m, the bottom elevations of the high-level circulating water pool and high-level fire water pool of the ore dressing plant are both 1585m, and the backwater of the tailings pond is gravity-transported to the high-level fire water pool of the ore dressing plant through a DN500 steel pipe.

[0057] The domestic sewage in the living area of ​​the ore dressing plant is discharged into an outdoor septic tank for treatment. The canteen sewage is treated in a grease trap and then collected in an outdoor septic tank for treatment. It is then discharged into the domestic sewage treatment system for treatment and finally reused as reclaimed water and merged into the new water and overflow return pump pool for recycling. Under normal production conditions, there is no externally discharged wastewater. The dust removal and floor washing wastewater in the ore dressing plant is collected through open and concealed ditches and then discharged to the tailings thickening tank for treatment together with the tailings, and the overflow water is recycled.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water supply and drainage system for mining production, characterized in that: Includes the following subsystems: Water intake subsystem The water intake point is located beside the river 450m away from the return water pump pool of the ore dressing plant. The water intake point adopts the method of building dams to block sand and store water. The water delivery method adopts a DN500 water delivery steel pipe to flow along the river into the overflow return water pump pool of the tailings thickener. The new water is collected and merged into the circulating water system of the ore dressing plant. The water delivery pipeline is about 450m long. Solenoid valves and flow meters are installed on the pipeline to control and measure the water delivery volume. The total water intake is 5448.00m 3 / d, the maximum is 227.00m 3 / h; Domestic water supply subsystem Domestic water is used for living and showering in the living area of ​​the ore dressing plant and for living water for the workers in the production workshop. The new water from the domestic water source is treated and disinfected by an integrated water purifier and then pumped to a height of 150m by a water pump. 3 Domestic clean water tank: The domestic water of the ore dressing plant is supplied by gravity flow of the water pipe network. The domestic water pipeline to the living area of ​​the ore dressing plant adopts DN100 galvanized steel pipe, about 750m long; Fire water supply subsystem The fire water supply system of the ore dressing plant supplies fire water to the production facilities of the ore dressing plant; the largest fire water consumption is cooling water; the fire water consumption is 216m 3 ; According to the maximum fire water consumption, it is stored in the ore dressing plant 1200m 3 The water supply pipe is the tailings pond return water supply pipe in the high-level fire water pool. The high-level fire water pool uses a D529×7 welded steel pipe as a gravity fire water supply pipe to supply water to various fire water points and cooling water points in the ore dressing plant, and outdoor fire hydrants are installed at appropriate locations in the plant area; Circulating water subsystem The circulating water is used for dust removal, first to third stage grinding and classification, pre-selection magnetic separation, first to fifth stage magnetic separation, fine screening, sweeping magnetic separation, gravity separation of titanium, iron removal magnetic separation and floor washing in the ore dressing plant; the circulating water includes the overflow circulating water of the tailings thickener and the return water of the tailings pond, of which the overflow circulating water of the tailings thickener is 3585.12m 3 / h, the tailings pond backwater volume is 497.99m 3 / h, used for fire fighting water and cooling water; Tailings thickening pond overflow circulating water subsystem The overflow return water volume of the tailings thickener is 3585.12m 3 / h, and 227.00m of new water from the river 3 / h, a total of 3812.14m 3 / h flows by gravity into the tailings thickener overflow return water pump pool; the water pump is self-priming and started; it is transported to the high-level circulating water pool through three DN500 welded steel pipes; two of the DN500 welded steel pipes are equipped with diverter valves to feed 800m 3 The special circulating water pool for high-level titanium selection supplies water; the new water and overflow return water pump station is located in the north of the tailings booster pump station, which is an above-ground pump station with an elevation of 1495.00m; the return water pump pool has a size of 11.2m×5.6m×3.5m; Tailings pond return water subsystem The distance from the concentrator to the starting pump station is about 3.5 km. Considering the evaporation and leakage in the reservoir, the return water volume of the tailings reservoir is 70%, which is 270.48 m 3 / h, the backwater in the reservoir is discharged from the flood discharge tunnel, the stilling pool at the tunnel outlet is at an elevation of 1648m, the bottom elevations of the high-level circulating water pool and high-level fire water pool of the ore dressing plant are both 1585m, and the backwater of the tailings pond is transported by gravity to the high-level fire water pool of the ore dressing plant through a DN500 steel pipe; Drainage subsystem Domestic sewage from the living area of ​​the ore dressing plant is discharged into an outdoor septic tank for treatment. The canteen sewage is treated in a grease trap and then collected in an outdoor septic tank for treatment. It is then discharged into the domestic sewage treatment system for treatment and finally reused as reclaimed water and merged into the new water and overflow return pump pool for recycling. Under normal production conditions, there is no external wastewater discharge. The wastewater from dust removal and floor washing in the ore dressing plant is collected through open and concealed ditches and discharged into the tailings thickening pond for treatment together with the tailings, and the overflow water is recycled.

2. A water supply and drainage system for mining production according to claim 1, characterized in that: The quality requirement for new water production is that the suspended matter content is ≤30mg / l; the quality requirement for circulating water is that the suspended matter content is ≤200mg / l; there is no requirement for the water quality of reused water; the water supply pressure of each water point is ≥0.30MPa.

3. The water supply and drainage system for mining production according to claim 1 is characterized in that: The fire water consumption of the mining site is 15L / s. The number of fires in the same period is one, and the fire water consumption for one fire is 108m 3 The firefighting water consumption of the explosives depot is 25L / s. The number of fires that occur at the same time is one, and the firefighting water consumption is 216m 3 The fire water consumption of the ore dressing plant is 30L / s. The number of fires in the same period is one, and the fire water consumption is 270m 3 ; Set up a high-level fire water tank and fire pipe network, and the pressure of the water supply point shall be greater than 0.1MPa.

4. The water supply and drainage system for mining production according to claim 1 is characterized in that: The height difference of each circulating water point in the concentrator is not large and in order to ensure the water supply balance, a high-level circulating water pool is built at an elevation of 1585m (pool bottom), V = 2000m 3 , divided into two compartments; the tailings pond return water is transported by gravity to 1200m 3 The remaining water in the high-level fire water pool, the overflow water from the tailings thickening pool and the new water for production are all sent to the high-level circulating water pool; the high-level circulating water pool uses a D630×7 welded steel pipe as a gravity water supply pipe to supply water to each water point of the iron selection system of the ore dressing plant; the circulating water supply of the titanium selection system is set at 800m 3 The dedicated water pool for high-level circulating water is located in the middle of the roller mill building and the second-stage closed-circuit screening room. The bottom elevation of the pool is 1536.50m, and the main gravity water supply pipe is a D630×7 welded steel pipe.

5. A water supply and drainage system for mining production according to claim 4, characterized in that: The high-level circulating water tank D630×7 gravity water supply pipe and the high-level fire water tank D529×7 gravity fire water supply pipe are equipped with interconnecting pipes and gate valves inside the grinding and selection workshop, so that they can supply water to each other in an emergency.

6. The water supply and drainage system for mining production according to claim 4 is characterized in that: This makes the circulating water supply system of the entire ore dressing plant easy to meet demand, and the production circulating water required by each plant is directly connected to the circulating water supply pipeline of the titanium selection workshop.

7. The water supply and drainage system for mining production according to claim 1 is characterized in that: The pump pool is equipped with four DFSS400-6NB split-type single-stage centrifugal pumps with Q=1500m3 / h, H=110m, n=1480r / min, motor model YKK500-4, protection level IP54, N=710kW, V=6000v; two SLOW200-660AT water pumps with Q=530m 3 / h, H=120m, n=1480r / min, distribution motor YKK400-4, N=315kW, V=6000v.

8. The water supply and drainage system for mining production according to claim 1 is characterized in that: Model: NXB4000m 2 The inclined plate concentrator overflows, and the return water volume is 704.72m 3 / h, all flows by gravity into the tailings thickener overflow return pump pool.