Operating mine goaf mining and storage collaborative transformation structure and method

Abstract

The operation mine goaf mining and storage collaborative transformation structure comprises a ground pump station located on the ground, an auxiliary shaft excavated between the ground and an underground stope working face and provided with a petroleum transportation pipeline, and a coal mining area and a filling operation area are arranged in front of and behind the stope working face respectively. A hydraulic support is arranged between the coal mining area and the filling operation area in a matched mode, the filling operation area comprises a working face open-off cut, a plurality of filling bodies and oil storage spaces located between the adjacent filling bodies, the oil storage spaces are jointly reinforced through reinforced concrete linings and anchor-shotcrete supports, and oil storage tanks communicated with petroleum transportation pipelines are arranged in the oil storage spaces. The utilization form of a goaf is innovated, an oil storage space transformation project is carried out in a filling operation area through anchor-shotcrete supporting and reinforced concrete lining, a mine oil storage system is arranged, an oil storage mode of an underground oil storage tank is provided, oil storage and coal mining do not conflict with each other, and the efficient operation mode that storage is carried out while mining is carried out can be achieved.

Description

Technical Field

[0001] The present invention relates to a collaborative mining and storage reconstruction structure, and particularly to a collaborative mining and storage reconstruction structure and method for a goaf in an operating mine. Background Art

[0002] As the "industrial blood", petroleum is the foundation for the sustainable and sound development of a country's industry. Compared with resources such as coal, the reserves of petroleum in China are scarce. Under normal circumstances, it is difficult to meet the needs of China's industrial development, and the country has a strong dependence on foreign countries. In view of the obvious shortage of petroleum reserve capacity, the industry usually adopts the method of constructing large-scale oil storage systems. However, the existing above-ground oil storage depots bring increasingly prominent problems such as large floor area, poor safety, and economic and environmental protection issues.

[0003] Contrary to the current situation of petroleum, coal mining enterprises of various scales are spread all over the country in China. Along with the underground mining engineering, the area of goaf left by coal mining operations is quite considerable. In the past, coal mining enterprises did not pay enough attention to the utilization of goaf. Most enterprises directly adopted the caving method to manage the roof, resulting in serious waste of underground space resources.

[0004] Therefore, many enterprises in the industry have switched to the filling mining method. The filling mining method is a utilization mode of goaf, which can control the movement of overlying strata and reduce the impact of mining activities on underground rock strata. However, the utilization mode of the filling mining method for goaf is relatively single, and it is difficult to achieve the efficient utilization of goaf.

[0005] Based on this, the present invention transforms the goaf into an oil storage space, which not only realizes the efficient utilization of the goaf, but also solves the problem of the location selection of underground oil storage sites. Summary of the Invention

[0006] In order to solve the deficiencies of the above technologies, the present invention provides a collaborative mining and storage reconstruction structure and method for a goaf in an operating mine.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: A collaborative mining and storage reconstruction structure for a goaf in an operating mine includes a surface pump station located on the ground. A auxiliary shaft for laying an oil transportation pipeline is dug between the ground and the underground stope working face. In front of and behind the stope working face are a coal mining area and a filling operation area respectively. A hydraulic support is provided between the coal mining area and the filling operation area. The filling operation area includes several filling bodies and an oil storage space between adjacent filling bodies. The oil storage space is jointly reinforced by reinforced concrete lining and shotcrete support. An oil storage tank communicated with the oil transportation pipeline is arranged in the oil storage space.

[0008] Further, a track roadway and a transportation roadway are respectively formed on both sides of the stope working face. The track roadway and the transportation roadway respectively extend through the coal mining area, the hydraulic support, and the filling operation area in sequence. The oil transportation pipeline is arranged in the track roadway.

[0009] Furthermore, multiple oil storage spaces are independently arranged. The bottom slab of each oil storage space is constructed with a reinforced concrete lining, and the top slab of the oil storage space is reinforced by shotcrete support.

[0010] Furthermore, the oil storage tank is arranged in the oil storage space along the extension direction of its length. A valve for controlling the opening / closing of the oil storage tank and the oil transportation pipeline is provided at the free end of the oil storage tank close to the track roadway.

[0011] A method for collaborative mining and storage transformation of the goaf in an operating mine includes the following steps:

[0012] S1. Use the strip filling method to demarcate the filling operation area in the goaf of the operating mine, and then construct filling bodies, and an oil storage space is formed between two adjacent filling bodies;

[0013] S2. Adopt shotcrete support for the top slab of the oil storage space, and construct a reinforced concrete lining for the bottom slab of the oil storage space;

[0014] S3. Transport the oil through the oil transportation pipeline to the oil storage tank in the oil storage space by the ground pumping station, and control the oil transportation through the valve;

[0015] S4. Carry out coal mining operations in the coal mining area, and at the same time construct the oil storage space in the filling operation area to arrange the oil storage tank for energy storage.

[0016] Furthermore, determine the filling step distance under the support of the hydraulic support and divide the filling strips.

[0017] Furthermore, start from the cutting eye of the working face and arrange the first oil storage space according to the determined filling step distance.

[0018] A collaborative mining and storage transformation structure and method for the goaf of an operating mine innovates the utilization form of the goaf. Through shotcrete support and reinforced concrete lining, the oil storage space transformation project is carried out in the filling operation area, the mine oil storage system is arranged, and the method of storing oil in the underground oil storage tank is proposed. The oil storage and coal mining do not conflict with each other, and an efficient operation mode of storing while mining can be realized. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a schematic design diagram of the oil storage space of the present invention.

[0021] Figure 3 It is a structural layout diagram of the stope working face.

[0022] In the figure: 1. Surface pumping station; 2. Oil transportation pipeline; 3. Auxiliary shaft; 4. Coal mining area; 5. Hydraulic support; 6. Filling body; 7. Oil storage tank; 8. Oil storage space; 9. Reinforced concrete lining; 10. Shotcrete support; 11. Track roadway; 12. Valve; 13. Working face cut-through; 14. Transportation roadway. Specific implementation manner

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0024] As Figures 1 - 3 Collectively shown, in order to achieve the efficient utilization of the goaf of an operating mine, this embodiment is about the structure and method for the collaborative transformation of mining and storage in the goaf of an operating mine, forming a dual-energy system with collaborative operation of energy extraction and energy storage, and also controlling surface deformation and overburden movement.

[0025] The structure for the collaborative transformation of mining and storage in the goaf of an operating mine includes a surface pumping station 1 located on the ground. The surface pumping station 1 is clearly defined as an oil pumping station. An auxiliary shaft 3 through which the oil transportation pipeline 2 passes is dug between the ground and the underground stope working face. The excavation of the auxiliary shaft 3 is not the product of the implementation of this embodiment, but the product of the construction of the operating mine. In front of and behind the stope working face are a coal mining area 4 and a filling operation area respectively. A hydraulic support 5 is provided between the coal mining area 4 and the filling operation area. The hydraulic support 5 is used to ensure the synchronous progress of coal mining and filling operations and is a safety support structure. In this embodiment, the hydraulic support 5 is preferably a combined mining and filling hydraulic support, which provides structural support guarantee for the collaborative progress of coal mining and filling operations. It can be understood that the combined mining and filling hydraulic support is used in the form of the hydraulic support 5 to achieve mining and storage simultaneously.

[0026] Preferably, a track roadway 11 and a transportation roadway 14 are respectively formed on both sides of the stope working face. The track roadway 11 and the transportation roadway 14 respectively extend through the coal mining area 4, the hydraulic support 5, and the filling operation area in sequence. The oil transportation pipeline 2 is arranged in the track roadway 11, thereby forming a complete stope working face system.

[0027] Preferably, a number of filling bodies 6 and an oil storage space 8 located between adjacent filling bodies 6 are provided in the filling operation area. The oil storage space 8 is jointly reinforced by a reinforced concrete lining 9 and a shotcrete support 10. An oil storage tank 7 communicated with the oil transportation pipeline 2 is arranged in the oil storage space 8, thereby achieving the structural setting for storing oil.

[0028] Furthermore, multiple oil storage spaces 8 are independently arranged. The bottom plate of each oil storage space 8 is constructed with a reinforced concrete lining 9, and the top plate of the oil storage space 8 is reinforced by a shotcrete support 10. Both the reinforced concrete lining 9 and the shotcrete support 10 can improve the stability of the surrounding rock and ensure the safety and stability of the oil storage space 8. In actual operation, the surface of the reinforced concrete lining 9 is treated to be smooth.

[0029] Furthermore, the oil storage tank 7 is arranged along the extending direction of its length within the oil storage space 8. A valve 12 for controlling the opening / closing of the oil storage tank 7 and the petroleum transportation pipeline 2 is provided at the free end of the oil storage tank 7 on the side close to the track roadway 11. In actual working conditions, the number of oil storage tanks 7 can be multiple, and multiple oil storage tanks 7 can be connected in series.

[0030] A method for the collaborative transformation structure of the goaf in an operating mine for mining and storage includes the following steps:

[0031] S1. Using the strip filling method to delimit a filling operation area in the goaf of the operating mine, and then constructing a filling body 6, and an oil storage space 8 is formed between two adjacent filling bodies 6;

[0032] S2. Adopting bolt-shotcreting support 10 for the roof of the oil storage space 8, and constructing a reinforced concrete lining 9 for the floor of the oil storage space 8;

[0033] S3. Pumping petroleum through the petroleum transportation pipeline 2 to the oil storage tank 7 in the oil storage space 8 by a ground pump station 1, and controlling the petroleum transportation through the valve 12;

[0034] S4. Conducting coal mining operations in the coal mining area 4, and simultaneously constructing the oil storage space 8 in the filling operation area to arrange the oil storage tank 7 for energy storage.

[0035] Preferably, determine the filling step distance under the support of the hydraulic support 5 and divide the filling strips; start arranging the first oil storage space 8 from the working face cut-off 13 as shown Figure 3 by the determined filling step distance.

[0036] This application discloses a collaborative transformation structure and method for the goaf in an operating mine, innovating the utilization form of the goaf. Through bolt-shotcreting support and reinforced concrete lining, the oil storage space transformation project is carried out in the filling operation area, the mine oil storage system is arranged, and the method of storing oil in the underground oil storage tank is proposed. The oil storage and coal mining do not conflict with each other, and an efficient operation mode of storing oil while mining can be realized.

[0037] The above embodiments are not limitations to the present invention, and the present invention is not limited to the above examples either. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present invention also fall within the protection scope of the present invention.

Claims

1. A collaborative mining and storage transformation structure for the goaf of an operating mine, comprising a surface pumping station (1) located on the ground. A secondary shaft (3) through which an oil transportation pipeline (2) passes is excavated between the ground and the underground stope working face. It is characterized in that: The front and rear of the mining area working face are respectively a coal mining area (4) and a filling operation area. A hydraulic support (5) is provided between the coal mining area (4) and the filling operation area. The filling operation area includes a plurality of filling bodies (6) and an oil storage space (8) located between adjacent filling bodies (6). The oil storage space (8) is reinforced by reinforced concrete lining (9) and bolt spraying support (10). An oil storage tank (7) connected to an oil transportation pipeline (2) is provided in the oil storage space (8).

2. The co - mining and storage collaborative transformation structure of the goaf in an operating mine according to claim 1, characterized in that: A track tunnel (11) and a transport tunnel (14) are formed on both sides of the mining working face. The track tunnel (11) and the transport tunnel (14) extend sequentially through the coal mining area (4), the hydraulic support (5), and the filling operation area. The oil transportation pipeline (2) is arranged in the track tunnel (11).

3. The collaborative mining and storage reconstruction structure for the goaf of an operating mine according to claim 1, wherein: The plurality of oil storage spaces (8) are independently arranged, the bottom plate of each oil storage space (8) is constructed with reinforced concrete lining (9), and the top plate of the oil storage space (8) is reinforced with anchor spraying support (10).

4. The co - mining and storage collaborative transformation structure for the goaf of an operating mine according to claim 2, wherein: The oil storage tank (7) is arranged in the oil storage space (8) along its longitudinal extension direction, and a valve (12) for controlling the opening / closing of the oil storage tank (7) and the oil transportation pipeline (2) is provided at the free end of the oil storage tank (7) close to the track lane (11).

5. The method for collaborative mining and storage transformation structure of goaf in operating mine as claimed in any one of claims 1-4, characterized in that The following steps are involved: S1. Using the strip filling method to define the filling operation area in the goaf of the operating mine, and then constructing a filling body (6) and forming an oil storage space (8) between two adjacent filling bodies (6); S2. The top plate of the oil storage space (8) is supported by anchor spraying (10), and the bottom plate of the oil storage space (8) is constructed with reinforced concrete lining (9); S3. The oil is transported to the oil storage tank (7) within the oil storage space (8) via the oil transport pipeline (2) through the ground pump station (1) and the oil transport is controlled by the valve (12); S4. Coal mining is carried out in the coal mining area (4), and at the same time, an oil storage space (8) is constructed in the filling operation area to arrange oil storage tanks (7) for energy storage.

6. The method for the collaborative mining and storage transformation structure of the goaf in an operating mine according to claim 5, characterized in that: Under the support of the hydraulic support (5), the filling step distance is determined and the filling strips are divided.

7. The method for operating a mining-storage coordinated transformation structure in a mine goaf according to claim 6, characterized in that: Starting from the working face cut (13), a first oil storage space (8) is arranged with a determined filling step.

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