Coal-uranium collaborative mining circulating supply mining system and application method

Abstract

The invention discloses a coal-uranium collaborative mining circulation supply mining system and an application method, and particularly relates to the technical field of coal-uranium mining and a geological institution.The geological institution comprises a surface layer, a uranium layer, a coal seam and underground runoff, the surface layer is located above the uranium layer, the uranium layer is located above the coal seam, and the underground runoff is located above the coal seam. The underground runoff is located between the surface layer and the uranium layer; and the ground mining mechanism comprises an injection well, an extraction well, a leaching solution preparation tank, a uranium comprehensive treatment bin, a liquid injection pump, a liquid extraction pump, a liquid injection pipe and a liquid extraction pipe. According to the method, partition isolation and staged collaborative proceeding of uranium mine in-situ leaching mining and coal mining are achieved by planning the barrier infiltration reduction mechanism, the overall recovery efficiency of uranium and coal resources is improved, the pollution risk of uranium-containing leachate discharge to the environment is reduced, underground water resources are fully recycled, and the method has the advantages of being environmentally friendly, efficient and safe.

Description

Technical Field

[0001] This invention relates to the field of coal and uranium mining technology, specifically to a coal and uranium co-mining and cyclic replenishment mining system and its application method. Background Technology

[0002] In some mining areas where uranium and coal coexist (such as the Ordos Basin in western my country), uranium ore layers and coal seams are associated with each other in the plane and stacked vertically. In traditional mining methods, the two resources are often mined separately, lacking coordinated development.

[0003] On the one hand, coal mining requires a large amount of drainage to reduce pressure in order to ensure the safety of underground operations. However, excessive drainage can lead to a drop in the water level of the uranium aquifer or even dry it out, which can damage the conditions for uranium leaching mining and thus affect the leaching and recovery of uranium resources.

[0004] On the other hand, uranium mines are often mined using in-situ leaching (situ leaching) technology, which requires injecting leaching solution into the uranium ore layer to dissolve the uranium and then circulating it out. If in-situ leaching is carried out before the coal seam is mined or when there are coal mine roadways, the leaching solution may seep into the lower coal seam or roadways, causing underground water inrush, corrosion of facilities, or even the spread of uranium-containing pollutants, endangering coal mine production safety and the environment.

[0005] Furthermore, conventional in-situ leaching mining of uranium often requires the consumption of large amounts of surface water to prepare the leaching solution. After the in-situ leaching operation is completed, uranium-containing, acidic wastewater is also generated. If not properly treated, it will cause groundwater pollution and resource waste. Therefore, based on the above situation, there is an urgent need for a coal-uranium co-mining and cyclic replenishment mining system that can spatially isolate uranium leaching operations from coal mining operations to prevent mutual interference and pollution, while making full use of the groundwater resources and uranium leaching residue in the mining area, reducing external water consumption and wastewater discharge, and achieving green mining and maximum resource recovery in the mining area. Summary of the Invention

[0006] The purpose of this invention is to provide a coal-uranium co-mining and cyclic replenishment mining system. Based on a planned barrier and seepage reduction mechanism and a leaching solution replenishment mechanism, the system effectively isolates the in-situ leaching operation of uranium ore from the coal mining operation in space. This avoids the threat to coal mine safety posed by the leakage of uranium-containing acidic leaching solution into the coal seam or tunnels, and also prevents excessive drainage from the coal mine from damaging the in-situ leaching conditions of the uranium ore. At the same time, it utilizes high-performance slurry prepared from mine solid waste to construct dams, improving the seepage resistance of the dams and realizing the resource utilization of solid waste and green, low-carbon landfill. The dual-cycle replenishment mode fully recovers groundwater and residual leaching solution in the mining area, significantly reducing the demand for surface water sources and reducing wastewater discharge. Ultimately, it achieves green, safe, and efficient co-mining of coal and uranium resources, protects the ecological environment, and solves the above-mentioned shortcomings of the technology.

[0007] In a first aspect, the present invention provides a coal-uranium co-mining and cyclic replenishment mining system, comprising:

[0008] A geological structure comprising a surface layer, a uranium layer, a coal seam, and underground runoff, wherein the surface layer is located above the uranium layer, the uranium layer is located above the coal seam, and the underground runoff is located between the surface layer and the uranium layer;

[0009] A surface mining facility includes an injection well, an extraction well, a leaching solution preparation tank, a uranium integrated processing chamber, an injection pump, an extraction pump, an injection pipe, and an extraction pipe. The leaching solution preparation tank, the uranium integrated processing chamber, the injection pump, the injection pipe, and the extraction pipe are all located above the surface layer. Both ends of the extraction pump are connected to the uranium integrated processing chamber and the extraction well via extraction pipes, respectively. Both ends of the injection pump are connected to the leaching solution preparation tank and the injection well via injection pipes, respectively. The extraction well and the injection well are both located between the surface layer and the uranium layer.

[0010] A seepage reduction barrier mechanism includes a slurry tank, a slurry pipe, a slurry pump, a seepage reduction well, and a seepage reduction dam. The slurry tank, slurry pump, and slurry pipe are all located above the surface layer. Both ends of the slurry pump are connected to the slurry tank and the seepage reduction well respectively through the slurry pipe. The seepage reduction well and the seepage reduction dam are both located between the surface layer and the uranium layer.

[0011] Preferably, the coal-uranium co-mining and cyclic replenishment mining system further includes a leaching solution replenishment mechanism, which includes a drainage pipe and a water pump. The drainage pipe is placed in the coal seam, and both ends of the drainage pipe are connected to the water pump and the middle of the drainage pipe passes through the seepage reduction dam.

[0012] Preferably, the leaching solution preparation tank contains leaching solution, which is injected into the uranium layer via an injection well.

[0013] Preferably, the slurry tank contains slurry, which is a mixture of mining solid waste materials and a gelling agent.

[0014] Preferably, the seepage-reducing dam body is formed by the solidification and sedimentation of slurry injected into the surrounding rock through a barrier seepage-reducing well.

[0015] Preferably, the two seepage-reducing dams divide the surface layer, uranium layer, and coal seam into a left block, a middle block, and a right block. The left block and the middle block are respectively provided with mined uranium ore bodies and unmined uranium ore bodies. Multiple sets of injection wells and extraction wells are respectively arranged in the mined uranium ore bodies and unmined uranium ore bodies. After coal is mined from the coal seams in the middle block and the right block, goaf areas are formed.

[0016] Preferably, the slurry tank is provided with a stirring mechanism, which includes a fixed frame at the top of the slurry tank. A drive motor is fixed to the top side of the fixed frame, and a first connecting shaft is connected to the bottom end of the drive motor. A plurality of first stirring rods are provided on the side wall of one end of the first connecting shaft extending into the interior of the slurry tank. A plurality of second connecting shafts are arranged in a circular array through bearings at the top of the interior of the slurry tank. A plurality of second stirring rods are provided on the side wall of the second connecting shafts, and the plurality of second stirring rods are distributed alternately with the first stirring rods. The top ends of the plurality of second connecting shafts extend out of the slurry tank and are provided with gears. A geared disc that meshes with the plurality of gears is fixed to the top end of the first connecting shaft.

[0017] Preferably, the outer wall of the slurry tank is provided with a fixing sleeve, and a heating wire is installed on the inner side of the fixing sleeve.

[0018] Secondly, the present invention provides an application method for a coal-uranium co-mining and cyclic replenishment mining system, employing the coal-uranium co-mining and cyclic replenishment mining system as described in the first aspect, comprising the following steps:

[0019] S1. Based on the engineering exploration, the slurry tank, slurry pipe, slurry pump, leaching solution preparation tank and uranium integrated processing chamber are arranged in sequence.

[0020] S2. Arrange barrier seepage reduction wells and inject slurry into the barrier seepage reduction wells to form an underground barrier seepage reduction dam body, and divide the mining area into a left block, a middle block and a right block along a predetermined boundary;

[0021] S3. Several injection wells and extraction wells are laid out in the uranium layers of the left block and the middle block to form a network of in-situ leaching wells for uranium ore. Coal mining operations are carried out in the coal seams of the middle block and the right block. After the coal is mined out, goaf areas are formed in the coal seams.

[0022] S4. Inject leaching solution into the injection well of the left block to perform in-situ leaching of the mined uranium ore body in the left block. The resulting uranium-bearing leaching solution is then extracted to the surface through the extraction well and subjected to uranium extraction treatment.

[0023] S5. After the mining of uranium in the left block is completed, the residual leachate in the mined uranium ore body of the left block and the groundwater accumulated in the goaf of the right block are pumped into the injection well of the central block through the drainage pipe and water pump, and mixed as the leachate solution for the uranium ore body to be mined in the central block.

[0024] S6. Inject the mixed leaching solution obtained in step S4 into the uranium ore body to be mined in the central block for in-situ leaching, and extract the uranium-containing solution through extraction wells and pump it to the surface to recover uranium products.

[0025] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0026] This invention constructs an underground barrier dam between uranium ore and coal mining areas by planning structures such as surface mining mechanisms, barrier seepage reduction mechanisms, and leaching solution replenishment mechanisms. This effectively isolates the uranium ore leaching area and the coal mining area, enabling uranium ore leaching mining and adjacent coal seam mining operations to be carried out simultaneously without interference. This avoids the impact of leaching solution leakage on coal mine production and prevents the damage to the uranium ore leaching effect caused by coal mine drainage, thereby improving the safety and efficiency of the coordinated mining of the two resources.

[0027] Meanwhile, by using high-performance slurry prepared from mine solid waste for dam construction, industrial waste is fully utilized, the impermeability of the dam body is improved, and the resource utilization of solid waste and green and low-carbon landfill are realized. Moreover, the barrier seepage-reducing dam body can block the leachate solution and mine water in different areas, preventing uranium-containing acidic solutions from seeping and spreading to adjacent aquifers and goaf areas, reducing the risk of radioactive nuclides and acidic solutions polluting groundwater and coal seams. After the leaching operation is completed, the residual leachate can be recycled and reused, avoiding the direct discharge of pollutant-containing waste liquid.

[0028] This invention can also fully recover and utilize groundwater and leaching residue in the mining area. By mixing the water from the coal mine goaf and the residual leaching solution of uranium ore through the drainage pipeline, it can be used as a new leaching solution and reinjected into the uranium ore layer to continue uranium mining. This significantly reduces the demand for new surface water sources and saves water resources. At the same time, this recycling method reduces the amount of wastewater discharged and realizes the protective development and utilization of water resources in the mining area.

[0029] Furthermore, by adopting a two-stage mining model of first dividing the area and then merging it, both coal and uranium resources can be developed with high recovery rates. The left block and the middle and right blocks undertake mining tasks in different stages, which ensures that coal resources are extracted to the maximum extent in the first stage and that uranium resources are fully leached and recovered in the second stage. This avoids the loss of one resource due to the mining of another, and improves the overall recovery rate of associated minerals. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the slurry tank of the present invention;

[0033] Figure 3 This is a schematic diagram of the internal structure of the slurry tank of the present invention;

[0034] Figure 4 This is a schematic diagram of the connection between the first connecting shaft and the second connecting shaft of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Surface layer; 2. Uranium layer; 3. Coal seam; 4. Underground runoff; 5. Goaf; 6. Uranium ore body to be mined; 7. Mined uranium ore body; 8. Injection well; 9. Extraction well; 10. Leaching solution; 11. Leaching solution preparation tank; 12. Uranium integrated processing chamber; 13. Slurry tank; 14. Slurry pump; 15. Barrier well for reducing seepage; 16. Seepage reduction dam; 17. Pump; 18. Drainage pipe; 19. Injection pump; 20. Extraction pump; 21. Injection pipe; 22. Extraction pipe; 23. Slurry pipe; 24. Slurry; 25. First connecting shaft; 26. First stirring rod; 27. Fixing frame; 28. Drive motor; 29. ​​Second connecting shaft; 30. Second stirring rod; 31. Gear disc; 32. Gear; 33. Fixing sleeve; 34. Heating wire. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] refer to Figure 1 As shown, the present invention provides a coal-uranium co-mining and cyclic replenishment mining system. The system includes a geological structure, a surface mining structure, a barrier seepage reduction structure, and a leaching liquid replenishment structure. The geological structure consists of a surface layer 1, a uranium layer 2, and a coal seam 3. The uranium layer 2 is located below the surface layer 1, and the coal seam 3 is located below the uranium layer 2. There is an underground runoff 4 between the surface layer 1 and the uranium layer 2.

[0039] In one specific embodiment of the present invention, the surface mining mechanism comprises an injection well 8, an extraction well 9, a leaching solution preparation tank 11, a uranium integrated processing chamber 12, an injection pump 19, a pumping pump 20, an injection pipe 21, and a pumping pipe 22. The injection well 8 and the extraction well 9 are located between the surface layer 1 and the uranium layer 2, while the leaching solution preparation tank 11, the uranium integrated processing chamber 12, the injection pump 19, and the pumping pump 20 are positioned on the upper part of the surface layer 1. During installation and application, the leaching solution preparation tank 11, the uranium integrated processing chamber 12, the injection pump 19, and the pumping pump 20 can be connected via... The two ends of the pump 20 are connected to the uranium integrated processing chamber 12 and the extraction well 9 via the pumping pipe 22. The two ends of the injection pump 19 are connected to the leaching solution preparation tank 11 and the injection well 8 via the injection pipe 21. The leaching solution preparation tank 11 contains leaching solution 10. When in use, the injection pump 19 can be started so that the injection pump 19 sends the leaching solution 10 in the leaching solution preparation tank 11 into the injection well 8 through the injection pipe 21. Then the leaching solution 10 can be injected into the uranium layer 2 through the injection well 8.

[0040] In one specific embodiment of the present invention, the seepage reduction barrier mechanism comprises a slurry tank 13, a slurry pipe 23, a slurry pump 14, a seepage reduction well 15, and a seepage reduction dam 16. The seepage reduction well 15 and the seepage reduction dam 16 are both located between the surface layer 1 and the uranium layer 2, with the seepage reduction well 15 positioned within the seepage reduction dam 16. The slurry tank 13, the slurry pump 14, and the slurry pipe 23 are all positioned above the surface layer 1. During installation and application, slurry can be pumped through the slurry pipe 23. The two ends of the slurry pump 14 are connected to the slurry tank 13 and the barrier seepage-reducing well 15, respectively. The slurry tank 13 contains slurry 24, which is a mixture of mining solid waste materials (fly ash, slag, or fine-grained gangue, etc.) and a coagulant. During use, the slurry pump 14 can be started to send the slurry 24 prepared in the slurry tank 13 into the barrier seepage-reducing well 15 through the slurry pipe 23. After that, it is injected into the surrounding rock through the barrier seepage-reducing well 15 and solidified and precipitated to form a seepage-reducing layer. The dam body 16, by setting two sections of seepage-reducing dam body 16, can divide the uranium mine and coal mine along a predetermined boundary into a left block, a middle block, and a right block. The left block and the middle block respectively contain mined uranium ore bodies 7 and unmined uranium ore bodies 6. Multiple sets of injection wells 8 and extraction wells 9 can be respectively arranged in the mined uranium ore bodies 7 and unmined uranium ore bodies 6, thereby forming an in-situ leaching well network for uranium ore. Thus, by injecting leaching solution 1 into the injection wells 8 of the left block... 0, thus enabling in-situ leaching of the uranium ore body 7 in the left block. The resulting uranium-bearing leachate is then extracted to the surface via extraction well 9 and subjected to uranium extraction. The resulting mixed leaching solution is injected into the uranium ore body 6 to be mined in the central block for in-situ leaching. The uranium-bearing solution is then extracted via extraction well 9 and pumped to the surface to recover uranium products. Coal mining operations can be carried out in the coal seam 3 in the central and right blocks. After the coal is mined, a goaf 5 is formed in the coal seam 3.

[0041] Furthermore, in this embodiment, specific reference is made. Figure 2 , Figure 3 and Figure 4As shown, the slurry tank 13 is also equipped with a stirring mechanism. The stirring mechanism includes a fixed frame 27 at the top of the slurry tank 13. A drive motor 28 is fixed to the top side of the fixed frame 27. The bottom end of the drive motor 28 is connected to a first connecting shaft 25. Multiple first stirring rods 26 are provided on the side wall of one end of the first connecting shaft 25 extending into the interior of the slurry tank 13. Multiple sets of second connecting shafts 29 are arranged in a circular array through bearings at the top of the interior of the slurry tank 13. Multiple second stirring rods 30 are provided on the side wall of the second connecting shafts 29, and the multiple second stirring rods 30 are distributed alternately with the first stirring rods 26. The top ends of the multiple second connecting shafts 29 all extend outside the slurry tank 13 and are equipped with gears 32. A gear disk 31 that meshes with the multiple gears 32 is fixed to the top end of the first connecting shaft 25. Therefore, during use, the first connecting shaft 25 can be driven to rotate by the drive motor 28, so that... The first connecting shaft 25 drives multiple sets of first stirring rods 26 to rotate inside the slurry tank 13. Simultaneously, the first connecting shaft 25 can drive the top gear 31 to rotate, causing the gear 31 to drive multiple sets of meshing gears 32 to rotate. Then, the gears 32 can drive the connected second connecting shaft 29 to rotate, so that multiple second connecting shafts 29 can simultaneously drive multiple sets of second stirring rods 30 to rotate in opposite directions inside the slurry tank 13. With the multiple sets of second stirring rods 30 and first stirring rods 26 distributed and cooperated vertically, the slurry 24 can be thoroughly and evenly stirred and mixed, greatly ensuring the mixing quality of the slurry 24 and keeping it flowing. In addition, a fixing sleeve 33 is provided on the outer wall of the slurry tank 13, and a heating wire 34 is provided inside the fixing sleeve 33, so that the slurry 24 inside the slurry tank 13 can be further heated, thereby effectively preventing the slurry 24 from solidifying and solidifying.

[0042] In another aspect of the present invention, the coal-uranium co-mining and cyclic replenishment mining system further includes a leaching solution replenishment mechanism, which includes a drainage pipe 18 and a water pump 17. The drainage pipe 18 is placed in the coal seam 3. Both ends of the drainage pipe 18 are connected to the water pump 17 and the middle part passes through the seepage reduction dam 16. A control valve can be set at the connection end of the water pump 17 and the drainage pipe 18. The extraction, transportation and injection process of the leaching solution and groundwater can be controlled by the control valve. After the uranium ore mining of the left block is completed, the leaching solution remaining in the mined uranium ore body 7 of the left block and the groundwater accumulated in the goaf 5 of the right block can be pumped through the drainage pipe 18 and the water pump 17 and introduced into the injection well 8 of the central block, and mixed as a leaching solution for the uranium ore body 6 to be mined in the central block.

[0043] The present invention also provides, for example Figure 1The diagram illustrates an application method for a coal-uranium co-mining and cyclic replenishment mining system. This method primarily includes the following steps: First, based on engineering exploration conditions, a slurry tank 13, a slurry pipe 23, a slurry pump 14, a leaching solution preparation tank 11, and a uranium integrated processing chamber 12 are sequentially arranged above the surface layer 1. In this embodiment, the uranium integrated processing chamber 12 and the extraction well 9 are connected to the two ends of the extraction pump 20 via extraction pipes 22, respectively. The leaching solution preparation tank 11 and the injection well 8 are connected to the injection pipes 21, respectively. The injection pump 19 has two ends; then, barrier seepage-reducing wells 15 are arranged. In this embodiment, the slurry 24 prepared in the slurry tank 13 is sent into the barrier seepage-reducing well 15 through the slurry pipe 23 by the slurry pump 14. After being injected into the surrounding rock through the barrier seepage-reducing well 15, it solidifies and precipitates to form a seepage-reducing dam 16, and divides the mining area into a left block, a middle block and a right block along a predetermined boundary; then, a number of injection wells 8 and extraction wells 9 are arranged in the uranium layer 2 of the left block and the middle block to form a uranium ore in-situ leaching well network. Coal mining operations were carried out in coal seam 3 in the central and right blocks, forming goaf 5 within coal seam 3 after coal extraction. Then, leaching solution 10 was injected into injection well 8 in the left block to perform in-situ leaching of the mined uranium ore body 7. The resulting uranium-bearing leachate was extracted to the surface via extraction well 9 for uranium extraction. After the uranium mining in the left block was completed, the residual leachate in the mined uranium ore body 7 in the left block and the groundwater accumulated in the goaf 5 of the right block were... The drainage pipe 18 and the pumping pump 17 pump and introduce the mixture into the injection well 8 in the central block, which is then used as a leaching solution for the uranium ore body 6 to be mined in the central block. Finally, the mixed leaching solution obtained in the previous step is injected into the uranium ore body 6 to be mined in the central block for in-situ leaching, and the uranium-containing solution is extracted through the extraction well 9 and pumped to the surface to recover uranium products. Thus, through this implementation method, uranium ore and coal are efficiently mined in stages within their respective blocks, and the dynamics of groundwater are effectively controlled and utilized during the mining process.

[0044] Specifically, in the first stage, the leaching solution is confined within the uranium mining area by the barrier effect of the seepage-reducing dam 16, thus avoiding pollution of the coal mine's water environment. In the second stage, the remaining leaching solution and mine water resources are reused for uranium leaching, realizing a circular utilization model of groundwater in the mining area that is taken from the mine and used for the mine. This greatly reduces the consumption of additional water sources and chemical reagents. Moreover, the entire collaborative mining process is safe, environmentally friendly, and makes full use of resources, reflecting the concept of green mining.

[0045] The above description is only a preferred embodiment of the present invention. For those skilled in the art, various modifications and adjustments can be made without departing from the principle of the present invention, and these should also be considered within the scope of protection of the present invention.

[0046] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coal-uranium co-mining cyclic replenishment mining system, characterized in that, The invention relates to a coal-uranium cooperative mining system, which comprises: a geological structure, which comprises a surface layer (1), a uranium layer (2), a coal layer (3) and an underground runoff (4), wherein the surface layer (1) is located above the uranium layer (2), the uranium layer (2) is located above the coal layer (3), and the underground runoff (4) is located between the surface layer (1) and the uranium layer (2); a ground mining mechanism, which comprises an injection well (8), a pumping well (9), a leaching solution preparation tank (11), a uranium comprehensive treatment bin (12), a liquid injection pump (19), a liquid pumping pump (20), a liquid injection pipe (21) and a liquid pumping pipe (22), wherein the leaching solution preparation tank (11), the uranium comprehensive treatment bin (12), the liquid injection pump (19), the liquid injection pipe (21) and the liquid pumping pipe (22) are all arranged in the upper part of the surface layer (1), the two ends of the liquid pumping pump (20) are connected with the uranium comprehensive treatment bin (12) and the pumping well (9) through the liquid pumping pipe (22), the two ends of the liquid injection pump (19) are connected with the leaching solution preparation tank (11) and the injection well (8) through the liquid injection pipe (21), and the pumping well (9) and the injection well (8) are both arranged between the surface layer (1) and the uranium layer (2); a barrier and infiltration reduction mechanism, which comprises a slurry tank (13), a slurry pipe (23), a slurry pump (14), a barrier and infiltration reduction well (15) and an infiltration reduction dam body (16), wherein the slurry tank (13), the slurry pump (14) and the slurry pipe (23) are all arranged in the upper part of the surface layer (1), the two ends of the slurry pump (14) are connected with the slurry tank (13) and the barrier and infiltration reduction well (15) through the slurry pipe (23), and the barrier and infiltration reduction well (15) and the infiltration reduction dam body (16) are both located between the surface layer (1) and the uranium layer (2).

2. The cyclic supplemented mining system for the coal and uranium cooperative mining according to claim 1, characterized in that, The coal-uranium cooperative mining system further comprises a leaching solution supply mechanism, which comprises a drainage pipe (18) and a water pumping pump (17), and the drainage pipe (18) is arranged in the coal layer (3), the two ends of the drainage pipe (18) are connected with the water pumping pump (17) and the middle part of the drainage pipe (18) passes through the infiltration reduction dam body (16).

3. The cyclic supplemented mining system for the coal and uranium cooperative mining according to claim 1, characterized in that: The leaching solution preparation tank (11) is provided with a leaching solution (10), and the leaching solution (10) is injected into the uranium layer (2) through the injection well (8).

4. The cyclic supplemented mining system for the coal and uranium cooperative mining according to claim 1, characterized in that: The slurry tank (13) is provided with a slurry (24), and the slurry (24) is a mixture of mine solid waste materials and a gelling agent.

5. The cyclic supplemented mining system for the coal and uranium cooperative mining according to claim 4, characterized in that: The infiltration reduction dam body (16) is formed by the solidification and precipitation of the slurry (24) after the slurry (24) is injected into the surrounding rock through the barrier and infiltration reduction well (15).

6. The cyclic supplemented mining system for the coal and uranium cooperative mining according to claim 1, characterized in that: Two infiltration reduction dam bodies (16) divide the surface layer (1), the uranium layer (2) and the coal layer (3) into a left block, a middle block and a right block, the left block and the middle block are respectively provided with a mined uranium ore body (7) and a to-be-mined uranium ore body (6), a plurality of groups of injection wells (8) and pumping wells (9) are arranged in the mined uranium ore body (7) and the to-be-mined uranium ore body (6), respectively, and a goaf (5) is formed in the coal layer (3) of the middle block and the right block after the coal is mined.

7. The cyclic supplemented mining system for the coal and uranium cooperative mining according to claim 1, characterized in that: The slurry tank (13) is provided with a stirring mechanism, the stirring mechanism includes a fixed frame (27) arranged at the top end of the slurry tank (13), the top side of the fixed frame (27) is fixedly connected with a driving motor (28), the bottom end of the driving motor (28) is connected with a first connecting shaft (25), one end of the first connecting shaft (25) extending into the slurry tank (13) is provided with a plurality of first stirring rods (26) on the side wall, the inside top end of the slurry tank (13) is provided with a plurality of groups of second connecting shafts (29) in an annular array through bearings, the side wall of the second connecting shaft (29) is provided with a plurality of second stirring rods (30), and the plurality of second stirring rods (30) are distributed alternately with the first stirring rods (26), the top end of the plurality of second connecting shafts (29) extends to the outside of the slurry tank (13) and is provided with a gear (32), and the top end of the first connecting shaft (25) is fixedly connected with a gear disc (31) engaged with the plurality of gears (32).

8. The cyclic supplemented mining system for the coal and uranium cooperative mining according to claim 1, characterized in that: The outer wall of the slurry tank (13) is provided with a fixed sleeve (33), and the inner side of the fixed sleeve (33) is mounted with a heating wire (34).

9. A method for applying a coal-uranium co-mining cyclic replenishment mining system, characterized in that, The coal and oil and gas green coordinated development system comprises the following steps: S1, according to the engineering exploration situation, arranging the slurry tank (13), the slurry pipe (23), the slurry pump (14), the leaching solution preparation tank (11) and the uranium comprehensive treatment bin (12) in sequence; S2, arranging the barrier and infiltration well (15), and injecting the slurry (24) into the barrier and infiltration well (15) to form an underground barrier and infiltration dam body (16), and separating the mining area into a left block, a middle block and a right block along a predetermined boundary; S3, arranging a plurality of injection wells (8) and extraction wells (9) in the uranium layer (2) of the left block and the middle block to form an in-situ leaching well pattern, and carrying out coal mining operation in the coal seam (3) of the middle block and the right block, and forming a goaf (5) in the coal seam (3) after the coal is mined; S4, injecting the leaching solution (10) into the injection well (8) of the left block to implement in-situ leaching on the mined uranium ore body (7) of the left block, and then the generated uranium-containing leaching solution is extracted to the ground through the extraction well (9) and subjected to uranium extraction treatment; S5, after the uranium mining of the left block is completed, the residual leaching solution in the mined uranium ore body (7) of the left block and the underground water accumulated in the goaf (5) of the right block are pumped and introduced into the injection well (8) of the middle block through the drainage pipe (18) and the water pump (17) and mixed as the leaching solution of the to-be-mined uranium ore body (6) of the middle block; S6, injecting the mixed leaching solution obtained in step S4 into the to-be-mined uranium ore body (6) of the middle block for in-situ leaching, and extracting the uranium-containing solution through the extraction well (9) and pumping to the ground to recover uranium products.

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