Distribution system capable of reasonably utilizing water resources

Abstract

The utility model discloses a distribution system capable of reasonably utilizing water resources. The distribution system comprises a mine sewage treatment unit, a domestic sewage treatment unit, a raw coal treatment unit and an underground separation layer filling unit, a first outlet of a disinfection water tank of the mine sewage treatment unit is communicated with a water inlet of a ball mill of the underground separation layer filling unit through a first pipeline, and an outlet of a clean water tank of the domestic sewage treatment unit is communicated with the first pipeline; a gangue outlet of a jigger of the raw coal treatment unit is communicated with an inlet of a gangue elevator of the underground separation layer filling unit, and an impurity outlet of a sewage pool of the domestic sewage treatment unit is communicated with a third inlet of a tooth roller crusher of the underground separation layer filling unit; a second outlet of the disinfecting water tank of the mine sewage treatment unit is communicated with an inlet of the circulating water tank of the raw coal treatment unit through a pipeline.

Description

Technical Field:

[0001] The utility model relates to the technical field of water resource utilization, and particularly relates to a distribution system for reasonably utilizing water resources. Background Art:

[0002] After coal mining, there are separated layer spaces underground in the mine. Over time, subsidence will occur, threatening the buildings and residents on the mining area. The following methods are mainly used for filling: first, the gangue from the coal preparation plant is crushed to obtain gangue particles, then the gangue particles are ground to make gangue slurry, and then the gangue slurry is sent into the underground separated layer space for filling; during the above filling process, a large amount of water is required for making slurry; and the purified water treated by the existing mine water treatment system in the mining area is mainly used for the greening of the mining area.

[0003] Currently, there are problems of excessive greening and serious water resource waste in the mining area. In addition, the sludge generated by the mine water treatment system is treated separately by a pressure filtration system and cannot be reasonably utilized, polluting the environment; moreover, the current environment also faces the problem of groundwater drying up due to excessive exploitation of groundwater. Therefore, a distribution system for reasonably utilizing water resources is provided, and the treated purified water is used to make gangue slurry for grouting filling, so that the water resources from the mine return to the mine again. Content of the Utility Model:

[0004] The purpose of the utility model is to provide a distribution system for reasonably utilizing water resources.

[0005] The purpose of the utility model is implemented by the following technical solution: A distribution system for reasonably utilizing water resources, which includes a mine sewage treatment unit, a raw coal treatment unit, and an underground separated layer filling unit; the first outlet of the disinfection pool of the mine sewage treatment unit is communicated with the water inlet of the ball mill of the underground separated layer filling unit through a first pipeline, the second outlet of the disinfection pool of the mine sewage treatment unit is communicated with the inlet of the circulating water pool of the raw coal treatment unit through a pipeline, and the gangue outlet of the jig of the raw coal treatment unit is communicated with the inlet of the gangue elevator of the underground separated layer filling unit.

[0006] Preferably, the mine sewage treatment unit includes a pre-sedimentation and regulation tank, a coagulation and sedimentation tank, an intermediate tank, a filtering device, and the disinfection pool; the drainage port of the pre-sedimentation and regulation tank is communicated with the inlet of the coagulation and sedimentation tank, the drainage port of the coagulation and sedimentation tank is communicated with the inlet of the intermediate tank, the outlet of the intermediate tank is communicated with the inlet of the filtering device, and the outlet of the filtering device is communicated with the inlet of the disinfection pool.

[0007] Preferably, the filtering device includes a filter, a backwash water tank, and a backwash water pump; the outlet of the intermediate water tank is communicated with the first inlet of the filter, the outlet of the filter is communicated with the inlet of the backwash water tank, and the first outlet of the backwash water tank is communicated with the inlet of the disinfection water tank; the second outlet of the backwash water tank is communicated with the second inlet of the filter through a pipeline, and the backwash water pump is arranged on the pipeline communicating the second outlet of the backwash water tank with the second inlet of the filter.

[0008] Preferably, the raw coal treatment unit includes the jig, the clean coal dewatering screen, the slime high-frequency screen, the flotation machine, the clean coal filter press, the thickener, the tailings filter press, and the circulating water tank; the clean coal outlet of the jig is communicated with the inlet of the clean coal dewatering screen, the drain outlet of the clean coal dewatering screen is communicated with the inlet of the slime high-frequency screen, the drain outlet of the slime high-frequency screen is communicated with the inlet of the flotation machine, the clean coal outlet of the flotation machine is communicated with the inlet of the clean coal filter press, the filtrate outlet of the clean coal filter press is communicated with the inlet of the circulating water tank, and the outlet of the circulating water tank is communicated with the water inlet of the jig; the tailings outlet of the flotation machine is communicated with the inlet of the thickener, the sediment outlet of the thickener is communicated with the inlet of the tailings filter press, and the supernatant outlet of the thickener and the filtrate outlet of the tailings filter press are both communicated with the inlet of the circulating water tank.

[0009] Preferably, the underground separation filling unit includes the gangue elevator, the toothed roll crusher, the hammer crusher, and the ball mill; the gangue outlet of the jig is communicated with the inlet of the gangue elevator, the outlet of the gangue elevator is communicated with the first inlet of the toothed roll crusher, the outlet of the toothed roll crusher is communicated with the inlet of the hammer crusher, and the outlet of the hammer crusher is communicated with the gangue inlet of the ball mill.

[0010] Preferably, the slime outlet of the tailings filter press of the raw coal treatment unit is communicated with the second inlet of the toothed roll crusher of the underground separation filling unit.

[0011] Preferably, it further includes a domestic sewage treatment unit, and the domestic sewage treatment unit includes a sewage tank, an adjustment tank, a primary sedimentation tank, a hydrolysis acidification tank, an aerated biological filter, a sand filter, and a clear water tank; a grille plate is arranged in the sewage tank, the drain outlet of the sewage tank is communicated with the inlet of the adjustment tank, the outlet of the adjustment tank is communicated with the inlet of the primary sedimentation tank, the first outlet of the primary sedimentation tank is communicated with the inlet of the hydrolysis acidification tank, the outlet of the hydrolysis acidification tank is communicated with the inlet of the aerated biological filter, the outlet of the aerated biological filter is communicated with the inlet of the sand filter, the outlet of the sand filter is communicated with the inlet of the clear water tank, and the outlet of the clear water tank is communicated with the first pipeline through a pipeline.

[0012] Preferably, the debris outlet of the sewage tank of the domestic sewage treatment unit is communicated with the third inlet of the toothed roll crusher of the underground separated seam filling unit.

[0013] Preferably, the second outlet of the primary sedimentation tank of the domestic sewage treatment unit is communicated with the inlet of the thickening tank of the raw coal treatment unit through a second pipeline.

[0014] Preferably, the sedimentation outlet of the pre-sedimentation and regulation tank of the mine sewage treatment unit and the sedimentation outlet of the coagulation and sedimentation tank of the mine sewage treatment unit are both communicated with the second pipeline through pipelines.

[0015] Advantages of the present utility model: First, the present utility model is provided with a mine sewage treatment unit, a domestic sewage treatment unit, a raw coal treatment unit and an underground separated seam filling unit. The sewage in the mine can be treated into purified water through the mine sewage treatment unit, the domestic sewage can be treated into purified water through the domestic sewage treatment unit, and the purified water generated by the mine sewage treatment unit and the domestic sewage treatment unit is transported to the underground separated seam filling unit through pipelines to participate in pulp making, reasonably utilizing water resources and avoiding waste of water resources caused by all being used for greening the mining area; the coal slime separated from gangue and tailings is transported to the underground separated seam filling unit through the raw coal treatment unit as a raw material for pulp making, and the coal slime separated from gangue and tailings is crushed and ground into gangue powder through the underground separated seam filling unit, and the gangue powder and purified water are made into gangue slurry to fill the underground separated seam.

[0016] Second, the sludge generated by the mine sewage treatment unit and the sludge generated by the domestic sewage treatment unit in the present utility model are transported to the raw coal treatment unit through the second pipeline for further treatment, eliminating the need to separately construct a sludge pressure filtration system and avoiding duplicate investment. Description of the drawings:

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 is a structural schematic diagram of the present utility model.

[0019] The markings of each component in the drawings are as follows: mine sewage treatment unit 1, pre-sedimentation and regulation tank 1.1, coagulation and sedimentation tank 1.2, intermediate water tank 1.3, filtration device 1.4, filter 1.4.1, backwash water tank 1.4.2, backwash water pump 1.4.3, disinfection water tank 1.5, domestic sewage treatment unit 2, sewage tank 2.1, regulation tank 2.2, primary sedimentation tank 2.3, hydrolysis acidification tank 2.4, biological aerated filter 2.5, C / N aerated filter 2.5.1, N aerated filter 2.5.2, sand filter 2.6, clear water tank 2.7, raw coal treatment unit 3, jigs 3.1, clean coal dewatering screen 3.2, coal slime high-frequency screen 3.3, flotation machine 3.4, clean coal filter press 3.5, thickener 3.6, tailings filter press 3.7, circulating water tank 3.8, underground separated layer filling unit 4, gangue hoist 4.1, toothed roll crusher 4.2, hammer crusher 4.3, ball mill 4.4, first pipeline 5, second pipeline 6. Detailed implementation manners:

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0021] As Figure 1 shown, a water resource allocation system for rational utilization includes a mine sewage treatment unit 1, a domestic sewage treatment unit 2, a raw coal treatment unit 3, and an underground separated layer filling unit 4;

[0022] The mine sewage treatment unit 1 includes a pre-sedimentation and regulation tank 1.1, a coagulation and sedimentation tank 1.2, an intermediate tank 1.3, a filtration device 1.4, and a disinfection tank 1.5. Among them, the filtration device 1.4 includes a filter 1.4.1, a backwash tank 1.4.2, and a backwash water pump 1.4.3; the drainage outlet of the pre-sedimentation and regulation tank 1.1 is connected to the inlet of the coagulation and sedimentation tank 1.2, the drainage outlet of the coagulation and sedimentation tank 1.2 is connected to the inlet of the intermediate tank 1.3, the outlet of the intermediate tank 1.3 is connected to the first inlet of the filter 1.4.1 through a pipeline, the outlet of the filter 1.4.1 is connected to the inlet of the backwash tank 1.4.2 through a pipeline, the first outlet of the backwash tank 1.4.2 is connected to the inlet of the disinfection tank 1.5 through a pipeline. Through the above equipment, the sewage in the mine can be treated into purified water, and the purified water is temporarily stored in the disinfection tank 1.5; the second outlet of the backwash tank 1.4.2 is connected to the second inlet of the filter 1.4.1 through a pipeline, and a backwash water pump 1.4.3 is provided on the pipeline connecting the second outlet of the backwash tank 1.4.2 and the second inlet of the filter 1.4.1. Through the backwash tank 1.4.2 and the backwash water pump 1.4.3, the filter 1.4.1 can be backwashed to avoid the increase of resistance and the decrease of water output during the long-term operation of the filter 1.4.1;

[0023] The first outlet of the disinfection tank 1.5 is connected to the water inlet of the ball mill 4.4 of the underground separated layer filling unit 4 through the first pipeline 5, and the second outlet of the disinfection tank 1.5 is connected to the inlet of the circulation tank 3.8 of the raw coal treatment unit 3 through a pipeline. The purified water is transported to the underground separated layer filling unit 4 and the raw coal treatment unit 3 through the pipeline for reasonable utilization, avoiding the waste of water resources caused by all being used for greening the mining area;

[0024] The domestic sewage treatment unit 2 includes a sewage tank 2.1, a regulation tank 2.2, a primary sedimentation tank 2.3, a hydrolysis acidification tank 2.4, an aerated biological filter 2.5, a sand filter 2.6, and a clean water tank 2.7. Among them, the aerated biological filter 2.5 includes a C / N aerated filter 2.5.1 and an N aerated filter 2.5.2; a grille plate is arranged in the sewage tank 2.1, the drainage outlet of the sewage tank 2.1 is connected to the inlet of the regulation tank 2.2, the outlet of the regulation tank 2.2 is connected to the inlet of the primary sedimentation tank 2.3 through a pipeline, and a lift pump is provided on the pipeline connecting the outlet of the regulation tank 2.2 and the inlet of the primary sedimentation tank 2.3. The first outlet of the primary sedimentation tank 2.3 is connected to the inlet of the hydrolysis acidification tank 2.4, the outlet of the hydrolysis acidification tank 2.4 is connected to the inlet of the C / N aerated filter 2.5.1, the outlet of the C / N aerated filter 2.5.1 is connected to the inlet of the N aerated filter 2.5.2, the outlet of the N aerated filter 2.5.2 is connected to the inlet of the sand filter 2.6, and the outlet of the sand filter 2.6 is connected to the inlet of the clean water tank 2.7. Through the above equipment, the domestic sewage can be treated into purified water and then temporarily stored in the clean water tank 2.7;

[0025] The outlet of the clean water tank 2.7 is connected to the first pipeline 5 through a pipeline to transport the purified water to the underground separated seam filling unit 4 for rational utilization; the debris outlet of the sewage tank 2.1 is connected to the third inlet of the toothed roll crusher 4.2 of the underground separated seam filling unit 4 to transport large particle debris to the underground separated seam filling unit 4 for rational utilization; the second outlet of the primary sedimentation tank 2.3 is connected to the inlet of the thickener 3.6 of the raw coal treatment unit 3 through the second pipeline 6 to transport the settled sludge in the primary sedimentation tank 2.3 of the domestic sewage treatment unit 2 to the raw coal treatment unit 3 through the second pipeline 6 for further treatment, avoiding environmental pollution and eliminating the need to separately construct a sludge pressure filtration system and avoid duplicate investment;

[0026] In addition, the sedimentation outlets of the pre-sedimentation and regulation tank 1.1 and the coagulation sedimentation tank 1.2 of the mine sewage treatment unit 1 are both connected to the second pipeline 6 through pipelines to transport the sludge sediment in the pre-sedimentation and regulation tank 1.1 and the coagulation sedimentation tank 1.2 of the mine sewage treatment unit 1 to the raw coal treatment unit 3 for further treatment, avoiding environmental pollution and eliminating the need to separately construct a sludge pressure filtration system and avoid duplicate investment;

[0027] The raw coal treatment unit 3 includes a jig 3.1, a clean coal dewatering screen 3.2, a coal slime high-frequency screen 3.3, a flotation machine 3.4, a clean coal filter press 3.5, a thickener 3.6, a tailings filter press 3.7 and a circulation water tank 3.8; the clean coal outlet of the jig 3.1 is connected to the inlet of the clean coal dewatering screen 3.2, the drainage outlet of the clean coal dewatering screen 3.2 is connected to the inlet of the coal slime high-frequency screen 3.3, the drainage outlet of the coal slime high-frequency screen 3.3 is connected to the inlet of the flotation machine 3.4, the clean coal outlet of the flotation machine 3.4 is connected to the inlet of the clean coal filter press 3.5, the filtrate outlet of the clean coal filter press 3.5 is connected to the inlet of the circulation water tank 3.8, and the outlet of the circulation water tank 3.8 is connected to the water inlet of the jig 3.1; the tailings outlet of the flotation machine 3.4 is connected to the inlet of the thickener 3.6, the sedimentation outlet of the thickener 3.6 is connected to the inlet of the tailings filter press 3.7, and the supernatant outlet of the thickener 3.6 and the filtrate outlet of the tailings filter press 3.7 are both connected to the inlet of the circulation water tank 3.8. The clean coal, medium coal and gangue in the raw coal are screened out by the jig 3.1, the clean coal and water are separated by the clean coal dewatering screen 3.2, the coal slime high-frequency screen 3.3, the flotation machine 3.4 and the clean coal filter press 3.5, and the coal slime and water in the tailings are separated by the thickener 3.6 and the tailings filter press 3.7. The separated water is stored in the circulation water tank 3.8;

[0028] The gangue outlet of the jig 3.1 is connected to the inlet of the gangue hoist 4.1 of the underground separated seam filling unit 4, and the coal slime outlet of the tailings filter press 3.7 is connected to the second inlet of the toothed roll crusher 4.2 of the underground separated seam filling unit 4 to transport the gangue and the coal slime separated from the tailings to the underground separated seam filling unit 4 for rational utilization;

[0029] The underground separation layer filling unit 4 includes a gangue elevator 4.1, a toothed roller crusher 4.2, a hammer crusher 4.3 and a ball mill 4.4; the gangue outlet of the jig 3.1 is connected to the inlet of the gangue elevator 4.1, the outlet of the gangue elevator 4.1 is connected to the first inlet of the toothed roller crusher 4.2, the outlet of the toothed roller crusher 4.2 is connected to the inlet of the hammer crusher 4.3, and the outlet of the hammer crusher 4.3 is connected to the gangue inlet of the ball mill 4.4. The gangue can be crushed and ground into gangue powder by the above equipment, and prepared into gangue slurry with water to fill the underground separation layer.

[0030] Working process: The mine sewage first enters the pre-sedimentation regulating tank 1.1 for natural sedimentation, and the supernatant in the pre-sedimentation regulating tank 1.1 enters the coagulation sedimentation tank 1.2. After adding coagulant and fully stirring, the sludge continues to precipitate. The precipitated sludge is transported to the raw coal treatment unit 3 for further treatment to avoid environmental pollution; the supernatant in the coagulation sedimentation tank 1.2 enters the intermediate water tank 1.3 for buffering, and then enters the filter 1.4.1 to filter and remove the suspended matter that is difficult to settle, and then enters the backwash water tank 1.4.2. The backwash water The suspended solid concentration of the water in the backwash pool 1.4.2 is less than 10 mg / l. The water in the backwash pool 1.4.2 is discharged to the disinfection pool 1.5. Chlorine dioxide oxidant is added to the disinfection pool 1.5 to kill bacteria in the water through the strong oxidizing effect of chlorine dioxide. The disinfected water enters the ball mill 4.4 of the underground separation layer filling unit 4 to participate in pulping, and enters the circulating water pool 3.8 of the raw coal processing unit 3 to be reasonably used by the raw coal processing unit 3 to avoid being used entirely for greening the mining area, resulting in a waste of water resources;

[0031] Domestic sewage enters the sewage pool 2.1, and the large particles of debris in the domestic sewage are removed by the grille plate. The large particles of debris enter the toothed roller crusher 4.2 of the underground separation filling unit 4 for crushing, and the domestic sewage continues to enter the regulating tank 2.2. After the water quality and water volume are adjusted in the regulating tank 2.2, the sewage is sent to the primary sedimentation tank 2.3 through the lifting pump. The settleable and floating objects in the sewage are removed in the primary sedimentation tank 2.3. After the sludge settles, it is transported to the concentration tank 3.6 of the raw coal processing unit 3 for concentration and sedimentation. The primary sedimentation tank 2.2 .3 The discharged sewage continues to enter the hydrolysis and acidification tank 2.4. After hydrolysis and acidification, the sewage enters the C / N aeration filter 2.5.1 and the N aeration filter 2.5.2 in sequence. After the C / N and N secondary biochemical treatments, the organic matter in the sewage is decomposed and removed. The biochemical sewage continues to enter the sand filter 2.6 to further intercept and remove fine substances in the water, and finally enters the clear water tank 2.7. The purified water in the clear water tank 2.7 enters the ball mill 4.4 of the underground separation layer filling unit 4 through the first pipeline 5 to participate in pulping;

[0032] Meanwhile, after the raw coal material is vibration-screened by the jig 3.1, clean coal, medium coal and gangue are discharged respectively; the clean coal enters the clean coal dewatering screen 3.2 for dewatering, and a part of the clean coal is separated out. The material under the screen enters the coal slime high-frequency screen 3.3 through the drain outlet of the clean coal dewatering screen 3.2 for further dewatering, and another part of the clean coal is separated out. The material under the screen of the coal slime high-frequency screen 3.3 enters the flotation machine 3.4 through the drain outlet of the coal slime high-frequency screen 3.3 for flotation. The clean coal obtained by flotation enters the clean coal filter press 3.5 for pressure filtration, and another part of the clean coal is separated out after pressure filtration. The filtrate of the clean coal filter press 3.5 enters the circulation water tank 3.8 for storage; the tailings obtained by flotation enter the thickener 3.6 for thickening and sedimentation. The sediment in the thickener 3.6 enters the tailings filter press 3.7 for further pressure filtration. The coal slime after pressure filtration enters the toothed roll crusher 4.2 of the underground separated seam filling unit 4 for crushing treatment. The supernatant in the thickener 3.6 and the filtrate of the tailings filter press 3.7 both enter the circulation water tank 3.8 for storage. The water in the circulation water tank 3.8 can be transported into the jig 3.1 for recycling;

[0033] The gangue discharged from the jig 3.1 enters the toothed roll crusher 4.2 through the gangue elevator 4.1. The gangue is crushed by the toothed roll into gangue particles of 50 mm. The gangue particles then enter the hammer crusher 4.3 and are crushed into gangue particles of 10 mm. The 10-mm gangue particles enter the ball mill 4.4 and are ground into gangue powder with a particle size below 0.2 mm. The gangue powder is mixed with the water entering the ball mill 4.4 in a certain proportion to form a gangue slurry with a density of 1.4 m 3 / g. The gangue slurry is filled into the underground separated seam space through the filling pump.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A distribution system for rationally utilizing water resources, characterized in that: It includes a mine sewage treatment unit, a raw coal treatment unit and an underground delamination filling unit; the first outlet of the disinfection water tank of the mine sewage treatment unit is connected to the water inlet of the ball mill of the underground delamination filling unit through a first pipeline, the second outlet of the disinfection water tank of the mine sewage treatment unit is connected to the inlet of the circulating water tank of the raw coal treatment unit through a pipeline, and the gangue outlet of the jig of the raw coal treatment unit is connected to the inlet of the gangue hoist of the underground delamination filling unit.

2. A water resource allocation system for rational use according to claim 1, characterized in that: The mine sewage treatment unit includes a pre-sedimentation regulating tank, a coagulation sedimentation tank, an intermediate water tank, a filtering device and the disinfection water tank; the drain outlet of the pre-sedimentation regulating tank is connected to the inlet of the coagulation sedimentation tank, the drain outlet of the coagulation sedimentation tank is connected to the inlet of the intermediate water tank, the outlet of the intermediate water tank is connected to the inlet of the filtering device, and the outlet of the filtering device is connected to the inlet of the disinfection water tank.

3. A water resource allocation system for rational use according to claim 2, characterized in that: The filtering device includes a filter, a backwash water tank and a backwash water pump; the outlet of the intermediate water tank is connected to the first inlet of the filter, the outlet of the filter is connected to the inlet of the backwash water tank, and the first outlet of the backwash water tank is connected to the inlet of the disinfection water tank; the second outlet of the backwash water tank is connected to the second inlet of the filter through a pipeline, and the backwash water pump is provided on the pipeline connecting the second outlet of the backwash water tank and the second inlet of the filter.

4. A water resource allocation system for rationally utilizing water resources according to claim 1 or 2, characterized in that: The raw coal processing unit includes the jig, a clean coal dewatering screen, a coal slime high-frequency screen, a flotation machine, a clean coal filter press, a thickening tank, a tailings filter press and the circulating water tank; the clean coal outlet of the jig is connected to the inlet of the clean coal dewatering screen, the drain outlet of the clean coal dewatering screen is connected to the inlet of the coal slime high-frequency screen, the drain outlet of the coal slime high-frequency screen is connected to the inlet of the flotation machine, the clean coal outlet of the flotation machine is connected to the inlet of the clean coal filter press, the filtrate outlet of the clean coal filter press is connected to the inlet of the circulating water tank, and the outlet of the circulating water tank is connected to the water inlet of the jig; the tailings outlet of the flotation machine is connected to the inlet of the thickening tank, the sedimentation outlet of the thickening tank is connected to the inlet of the tailings filter press, and the supernatant outlet of the thickening tank and the filtrate outlet of the tailings filter press are both connected to the inlet of the circulating water tank.

5. A water resource allocation system for rational use according to claim 4, characterized in that: The underground delamination filling unit includes the gangue elevator, the toothed roller crusher, the hammer crusher and the ball mill; the gangue outlet of the jig is connected to the inlet of the gangue elevator, the outlet of the gangue elevator is connected to the first inlet of the toothed roller crusher, the outlet of the toothed roller crusher is connected to the inlet of the hammer crusher, and the outlet of the hammer crusher is connected to the gangue inlet of the ball mill.

6. A water resource allocation system for rational use according to claim 5, characterized in that: The coal slime outlet of the tailings filter press of the raw coal processing unit is communicated with the second inlet of the toothed roller crusher of the underground separation layer filling unit.

7. A water resource allocation system for rational use according to claim 5, characterized in that: It also includes a domestic sewage treatment unit, which includes a sewage tank, a regulating tank, a primary sedimentation tank, a hydrolysis acidification tank, an aerated biological filter, a sand filter and a clear water tank; a grid plate is arranged in the sewage tank, the drain outlet of the sewage tank is connected to the inlet of the regulating tank, the outlet of the regulating tank is connected to the inlet of the primary sedimentation tank, the first outlet of the primary sedimentation tank is connected to the inlet of the hydrolysis acidification tank, the outlet of the hydrolysis acidification tank is connected to the inlet of the aerated biological filter, the outlet of the aerated biological filter is connected to the inlet of the sand filter, the outlet of the sand filter is connected to the inlet of the clear water tank, and the outlet of the clear water tank is connected to the first pipeline through a pipeline.

8. A water resource allocation system for rational use according to claim 7, characterized in that: The debris outlet of the sewage pool of the domestic sewage treatment unit is connected to the third inlet of the toothed roller crusher of the underground separation filling unit.

9. A water resource allocation system for rational use according to claim 7, characterized in that: The second outlet of the primary sedimentation tank of the domestic sewage treatment unit is connected to the inlet of the concentration tank of the raw coal processing unit through a second pipeline.

10. A water resource allocation system for rational use according to claim 9, characterized in that: The sedimentation outlet of the pre-sedimentation regulating tank of the mine sewage treatment unit and the sedimentation outlet of the coagulation sedimentation tank of the mine sewage treatment unit are both connected to the second pipeline through a pipeline.

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