Pipe-buried water pumping type coal mining subsidence land treatment device

Abstract

The utility model discloses a buried pipe water pumping type coal mining subsidence land treatment device, which is characterized in that a water retaining wall is vertically inserted into a coal mining subsidence land, is arranged around a water accumulation area and is connected with the water accumulation area, so that the exterior and the interior of the water accumulation area are separated, surface runoff and underground shallow incoming water are intercepted, a groove is formed in the bottom of a foundation, and a collecting box is arranged in the groove; a plurality of vertical buried pipes are arranged to be connected with a collecting box, the other ends of the vertical buried pipes are connected with a suction assembly used for pumping water, sliding grooves are formed in the inner walls of pipe bodies of the vertical buried pipes, blocking plates which slide up and down and are used for preventing impurities from being sucked in are arranged between the sliding grooves, and the blocking plates are used for preventing the impurities from entering the suction assembly; the suction force of the blocking plate disappears, the blocking plate naturally falls down, a certain acting force is generated, impurities on the blocking plate fall into the collecting box, then the problem that a buried pipe in a traditional buried pipe type water pumping device is prone to being blocked is solved, the treatment efficiency is improved, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of coal mining subsidence area treatment technology, and in particular to a buried pipe pumping coal mining subsidence area treatment device. Background Technology

[0002] Coal resources are an important strategic energy reserve for the country, accounting for about 70% of primary energy production and consumption, and together with oil, they constitute the mainstay of global primary energy consumption. However, the mining process inevitably causes subsidence to surface farmland and other areas. With the increasing intensity and scale of mining, severe ground subsidence has occurred in coal mining areas, resulting in large areas of waterlogged farmland.

[0003] Among the existing patent solutions, patent CN117514332A discloses a buried pipe pumping coal mining subsidence area treatment device and method. This solution discloses a water retaining wall, a pumping and drainage component, a water collection pipe and multiple buried pipes. The water retaining wall surrounds the water accumulation area of ​​the coal mining subsidence area and intercepts surface runoff and shallow groundwater, facilitating artificial dewatering in the water accumulation area of ​​the coal mining subsidence area. The water collection pipe and multiple buried pipes are laid in the water accumulation area of ​​the coal mining subsidence area, and one end of each buried pipe is connected to the water collection pipe, while the other end of each buried pipe extends away from the water collection pipe. The lower end of the pumping pipe is connected to the water collection pipe.

[0004] The above scheme achieves buried pipe pumping in coal mining subsidence areas through the combination and arrangement of water collection pipes, buried pipes, and pumping components, but it still has shortcomings:

[0005] The working conditions for buried pipes are too idealized. The water in any type of coal mining subsidence area is not pure water, but a mixture of solids and impurities. Under the strong suction of the drainage components, the buried pipes are prone to blockage.

[0006] Therefore, ensuring the pumping effect of buried pipe pumping is one of the problems that needs to be solved by those skilled in the art in the treatment of coal mining subsidence areas. Utility Model Content

[0007] The purpose of this invention is to provide a buried pipe pumping device for treating coal mining subsidence areas, ensuring that no blockage occurs during buried pipe pumping, thereby improving treatment efficiency and effectiveness.

[0008] To address the aforementioned technical problems, this utility model provides a buried pipe pumping type coal mining subsidence area treatment device, including a water-retaining wall vertically inserted into the coal mining subsidence area. The top of the water-retaining wall is higher than the ground surface of the coal mining subsidence area. Multiple water-retaining walls are arranged and connected around the water accumulation area of ​​the coal mining subsidence area. The water-retaining walls are used to separate the outside and inside of the water accumulation area of ​​the coal mining subsidence area and to intercept surface runoff and shallow groundwater from the coal mining subsidence area. A groove is provided at the bottom of the foundation of the water accumulation area, and a groove is provided in the groove. A collection box is provided, and the water accumulation area is provided with multiple vertical buried pipes connected to the collection box and a suction assembly for pumping water connected to the vertical buried pipes. The vertical buried pipes include, from top to bottom, a head pipe connected to the suction assembly, a top cover communicating with the head pipe, a pipe body detachably connected to the top cover, a connecting pipe with suction holes evenly distributed around the pipe body and located at the bottom of the pipe body, sliding grooves symmetrically arranged on the inner wall of the pipe body, and a baffle plate that slides up and down between the sliding grooves to prevent impurities from being sucked in.

[0009] The blocking plate includes a frame and a flexible plate disposed within the frame. The flexible plate has multiple through holes, and the frame is disposed in the slide groove and slides within the slide groove.

[0010] It also includes springs symmetrically distributed at the bottom of the slide, and the springs are in contact with the frame.

[0011] The lowest point of the flexible plate is higher than the lowest point of the suction hole.

[0012] The collection box includes a base and a cover plate. The base and the cover plate form a cavity. The surface of the cover plate is provided with multiple mounting holes communicating with the cavity and a flip cover. The flip cover is used to open and clean the impurities stored inside the collection box. The collection box is connected to the vertical buried pipe bolt by the mounting.

[0013] The top cover has a first threaded section at its lower end, and the connecting pipe has a second threaded section at its lower end. The top cover and the pipe body of the vertical buried pipe are threadedly connected through the first threaded section, and the connecting pipe of the vertical buried pipe is threadedly connected to the mounting hole through the second threaded section.

[0014] The suction assembly includes a suction pipe and a suction pump station. The suction pipe is a multi-head suction pipe, with the multi-head ends of the multi-head suction pipe connected to the vertical buried pipe and the single-head end of the multi-head suction pipe connected to the suction pump station.

[0015] The multi-head suction pipe is connected to the head pipe of the vertical buried pipe, and a sealing layer is provided at the connection.

[0016] This also includes a waterproof layer installed on the surface of the retaining wall.

[0017] This also includes a liquid level sensor installed in the collection tank.

[0018] The buried pipe pumping coal mining subsidence control device provided in this embodiment of the invention has the following advantages compared with the prior art:

[0019] The buried pipe pumping device for treating coal mining subsidence areas provided in this embodiment of the invention vertically inserts a retaining wall into the coal mining subsidence area, which is set up and connected around the water accumulation area to separate the outside and inside of the water accumulation area, intercepting surface runoff and shallow groundwater. A groove is set at the bottom of the foundation, and a collection box is set in the groove. Multiple vertical buried pipes are set and connected to the collection box. The other end of the vertical buried pipe is connected to a suction component for pumping water. The vertical buried pipe has a sliding groove on its inner wall, and a baffle plate that slides up and down between the sliding grooves to prevent impurities from being sucked in. The baffle plate prevents impurities from entering the suction component. When the suction component stops working, the suction force of the baffle plate disappears, and the baffle plate falls naturally, generating a certain force that causes the impurities on the baffle plate to fall into the collection box. This solves the problem of easy clogging of buried pipes in traditional buried pipe pumping devices, improves treatment efficiency, and has a simple structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a coal mining subsidence area, representing an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model.

[0022] Figure 2 A schematic diagram of the installation structure of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model;

[0023] Figure 3 A schematic diagram of the collection box structure of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model;

[0024] Figure 4 A schematic diagram of the vertical buried pipe structure of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model;

[0025] Figure 5A schematic internal cross-sectional view of the vertical buried pipe of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model.

[0026] Figure 6 A schematic diagram of the structure of the baffle plate in one embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model.

[0027] Among them, the water accumulation area-1, water retaining wall-2, foundation-3, groove-4, collection box-5, base-501, cover plate-502, mounting hole-503, flip cover-504, vertical buried pipe-6, connecting pipe-601, pipe body-602, suction hole-603, threaded section-604, top cover-605, head pipe-606, baffle plate-607, spring-608, suction pipe-7, and suction pump station-8. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please refer to Figures 1-6 , Figure 1 A schematic diagram of a coal mining subsidence area, representing an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model. Figure 2 A schematic diagram of the installation structure of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model; Figure 3 A schematic diagram of the collection box structure of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model; Figure 4 A schematic diagram of the vertical buried pipe structure of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model; Figure 5 A schematic internal cross-sectional view of the vertical buried pipe of an embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model. Figure 6 This is a schematic diagram of the structure of the baffle plate in one embodiment of the buried pipe pumping coal mining subsidence treatment device provided by this utility model.

[0030] In one specific embodiment, the buried pipe pumping coal mining subsidence area treatment device includes a retaining wall 2 vertically inserted into the coal mining subsidence area. The top of the retaining wall 2 is higher than the ground surface of the coal mining subsidence area. Multiple retaining walls 2 are arranged and connected around the water accumulation area 1 of the coal mining subsidence area. The retaining walls 2 are used to separate the outside and inside of the water accumulation area 1 of the coal mining subsidence area and to intercept surface runoff and shallow groundwater from the coal mining subsidence area. A groove 4 is provided at the bottom of the foundation 3 of the water accumulation area 1, and a collection box 5 is provided in the groove 4. The water accumulation area 1 is provided with a connection to the collection box. The header 5 is connected to multiple vertical buried pipes 6 and a suction assembly for pumping water connected to the vertical buried pipes 6. The vertical buried pipes 6 include, from top to bottom, a head pipe 606 connected to the suction assembly, a top cover 605 communicating with the head pipe 606, a pipe body 602 detachably connected to the top cover 605, suction holes 603 evenly distributed around the pipe body 602, a connecting pipe 601 at the bottom of the pipe body 602, sliding grooves symmetrically arranged on the inner wall of the pipe body 602, and baffle plates 607 that slide up and down between the sliding grooves to prevent impurities from being sucked in.

[0031] By vertically inserting a retaining wall 2 into the coal mining subsidence area, setting up and connecting it around the water accumulation area 1, the external and internal parts of the water accumulation area 1 are separated, intercepting surface runoff and shallow groundwater. A groove 4 is set at the bottom of the foundation 3, and a collection box 5 is set in the groove 4. Multiple vertical buried pipes 6 are set and connected to the collection box 5. The other end of the vertical buried pipe 6 is connected to a suction component for pumping water. The vertical buried pipe 6 has a sliding groove on the inner wall of the pipe body 602, and a baffle plate 607 that slides up and down between the sliding grooves to prevent impurities from being sucked in. The baffle plate 607 blocks impurities from entering the suction component. When the suction component stops working, the suction force of the baffle plate 607 disappears, and the baffle plate 607 falls naturally, generating a certain force, causing the impurities on the baffle plate 607 to fall into the collection box 5. This solves the problem of easy clogging of buried pipes in traditional buried pipe pumping devices, improves treatment efficiency, and has a simple structure.

[0032] In this application, the movement of the baffle plate 607 is used to block impurities, and the structure of the baffle plate 607 is not limited.

[0033] The baffle plate 607 can be a one-piece structure or a split structure composed of multiple connected components. In one embodiment, the baffle plate 607 includes a frame and a flexible plate disposed within the frame. The flexible plate has multiple through holes, and the frame is disposed in the slide groove and slides within the slide groove.

[0034] By setting a frame as a support and moving it within a chute, and setting a flexible plate inside the frame, with multiple through holes in the flexible plate, the flexible plate is not easily damaged when subjected to external impacts due to its flexibility. In the event of edge slippage, it is easy to restore its original shape, thus improving its service life. In contrast, if a rigid structure is used, the through holes are easily blocked or even damaged.

[0035] This application does not limit the shape, structure, or material of the frame. It can be made of aluminum alloy, stainless steel, etc., and the flexible plate can be made of rubber, silicone, etc. Moreover, its thickness and the size, number, and shape of the holes can be set and manufactured according to different pumping needs.

[0036] Since the baffle plate 607 moves under different conditions in this application, in order to reduce damage caused by collisions and improve service life, in one embodiment, the buried pipe pumping coal mining subsidence treatment device further includes springs 608 symmetrically distributed at the bottom of the chute, and the springs 608 are in contact with the frame.

[0037] By symmetrically distributing springs 608 at the bottom of the chute, the springs 608 contact the frame. During use, the frame is cushioned by the springs 608 during the falling process, reducing damage to components and improving the service life of the equipment.

[0038] This application includes, but is not limited to, using a spring 608 for cushioning; other components, such as rubber pads, may also be used for cushioning.

[0039] To further ensure the suction effect of the flexible plate on the suction hole 603, the lowest point of the flexible plate is higher than the lowest point of the suction hole 603.

[0040] This application does not limit the positional relationship between the flexible plate and the suction hole 603.

[0041] In this application, a collection box 5 is used for water storage and is connected to a vertical buried pipe 6. There are no restrictions on its structure or connection method.

[0042] In one embodiment, the collection box 5 includes a base 501 and a cover plate 502. The base 501 and the cover plate 502 form a cavity. The surface of the cover plate 502 is provided with a plurality of mounting holes 503 communicating with the cavity and a flip cover 504. The flip cover 504 is used to open and clean the impurities stored inside the collection box 5. The collection box 5 is bolted to the vertical buried pipe 6 through the mounting.

[0043] The structure, which uses a base 501 and a cover plate 502 to form a cavity, can store moisture and other substances. The cover plate 502 is provided with mounting holes 503 and a flip cover 504 to facilitate other subsequent operations.

[0044] This application does not limit the structure of the collection box 5, nor does it limit the structure, shape, and material of the base 501 and the cover plate 502.

[0045] This application does not limit the connection relationship between the top cover 605 and the connecting pipe 601 and other components. The two can be connected by snap-fit, bolt, or fasteners.

[0046] In one embodiment, the lower end of the top cover 605 is provided with a first threaded section 604, the lower end of the connecting pipe 601 is provided with a second threaded section 604, the top cover 605 and the pipe body 602 of the vertical buried pipe 6 are threadedly connected through the first threaded section 604, and the connecting pipe 601 of the vertical buried pipe 6 is threadedly connected to the mounting hole 503 through the second threaded section 604.

[0047] By setting a threaded section 604 at the lower end of the top cover 605 and the lower end of the connecting pipe 601, a threaded connection can be used, avoiding the need for a third part and allowing for direct connection. Moreover, the threaded connection can fully achieve a seal and improve the sealing effect, eliminating the need for other sealing components.

[0048] In this application, the water stored in the collection tank 5 is extracted by a suction assembly. The structure of the suction assembly is not limited. In one embodiment, the suction assembly includes a suction pipe 7 and a suction pump station 8. The suction pipe 7 is a multi-head suction pipe. The multi-head ends of the multi-head suction pipe are connected to the vertical buried pipe 6, and the single-head end of the multi-head suction pipe 7 is connected to the suction pump station 8.

[0049] By setting up a suction pipe 7 and a suction pump station 8, the suction pipe 7 adopts a multi-head suction pipe, and a few multi-head suction pipes 7 can be used to connect to the vertical buried pipe 6. The suction pump station 8 can use fewer interfaces to control all the vertical buried pipes 6.

[0050] The structure of the suction assembly is not limited in this application, including but not limited to the suction pipe 7 and the suction pump station 8 mentioned above.

[0051] To further improve the sealing effect and increase the pumping efficiency, in one embodiment, the multi-head suction pipe 7 is connected to the head pipe 606 of the vertical buried pipe 6 and a sealing adhesive layer is provided at the connection.

[0052] By sealing the connection between the multi-ended end of the connection and the head pipe 606 of the vertical buried pipe 6 with a sealing layer, the sealing effect is improved, thereby improving the pumping efficiency.

[0053] This application does not impose any restrictions on the material or thickness of the sealant layer.

[0054] In addition to using a sealant layer, other sealing materials can also be used.

[0055] In this application, a retaining wall 2 is used to surround and block the water, thus isolating the water from the outside. In order to improve the isolation effect, in one embodiment, the buried pipe pumping coal mining subsidence treatment device also includes a waterproof layer on the surface of the retaining wall 2.

[0056] In this application, a waterproof layer is applied to the surface of the retaining wall 2 to improve the waterproofing effect and enhance the subsequent isolation effect.

[0057] This application does not impose any restrictions on the thickness or material of the waterproof layer.

[0058] In this application, a collection box 5 is used to collect liquid and a suction component is used to extract it, but it is impossible to perform suction operation at all times.

[0059] To improve the efficiency of the water pump, in one embodiment, the buried pipe pumping coal mining subsidence treatment device also includes a liquid level sensor installed in the collection tank 5.

[0060] By installing a liquid level sensor, a suction operation can be performed when the liquid level reaches a certain level, allowing the liquid to be discharged in a timely manner without having to keep the water pump running continuously, thereby reducing the amount of electricity used.

[0061] In addition, using a liquid level sensor for liquid level detection can also determine the treatment effect based on the increase in liquid level. For example, if the increase in liquid level per unit time decreases, it indicates that the treatment effect has begun to manifest.

[0062] In one embodiment, the buried pipe pumping coal mining subsidence area treatment device, such as Figure 1 As shown, the area includes a water accumulation zone 1 and a foundation 3. In order to treat the water accumulation in the water accumulation zone 1, a retaining wall 2 is inserted and connected to the coal mining subsidence area. The surface of the retaining wall 2 is provided with a waterproof layer. One end of the retaining wall 2 is higher than the ground surface. The retaining wall 2 surrounds the water accumulation zone 1 of the coal mining subsidence area. The retaining wall 2 intercepts surface runoff and shallow groundwater, which facilitates artificial dewatering of the water accumulation zone 1 of the coal mining subsidence area.

[0063] like Figure 2This is an installation diagram after the water accumulation area 1 has been pumped out. It includes a collection box 5, several vertical buried pipes 6 detachably connected to the collection box 5, and a suction assembly for pumping water connected to the vertical buried pipes 6. The vertical buried pipes 6, from top to bottom, include a head pipe 606 connected to the suction assembly, a top cover 605 communicating with the head pipe 606, a pipe body 602 detachably connected to the top cover 605, several suction holes 603 evenly opened around the pipe body 602, a connecting pipe 601 set at the bottom of the pipe body 602, symmetrical grooves opened on the inner wall of the pipe body 602, and baffles 607 that slide up and down between the grooves to prevent impurities from being sucked in.

[0064] Specifically: A groove 4 is opened at the bottom of the coal mining subsidence area, and the collection box 5 is installed in the groove 4. The collection box 5 includes a base 501, a cover plate 502, a cavity formed by the base 501 and the cover plate 502, a number of mounting holes 503 opened on the surface of the cover plate 502 and communicating with the cavity, and a flip cover 504 set on the surface of the cover plate 502. The flip cover 504 is used to open and clean the impurities inside the collection box 5. The mounting holes 503 are threaded holes and are threaded to the vertical buried pipe 6.

[0065] Regarding the suction assembly: The suction assembly includes a suction pipe 7 and a suction pump station 8. The suction pipe 7 is a multi-head suction pipe 7. The multi-head ends of the suction pipe 7 are respectively connected to the vertical buried pipe 6. The single-head end of the suction pipe 7 is connected to the suction pump station 8, which is installed on the ground.

[0066] Specifically: the water in the water accumulation area 1 is pumped out by the suction pump station 8.

[0067] Regarding the connection: the multi-ended end of the suction pipe 7 is connected to the head pipe 606 and a sealing tape is provided at the connection between the two. The lower end of the top cover 605 and the lower end of the connecting pipe 601 are both threaded sections 604. The top cover 605 is threadedly connected to the pipe body 602, and the connecting pipe 601 is threadedly connected to the mounting hole 503. The use of threaded connection is for the effective replacement, maintenance and upkeep of various components.

[0068] Regarding the vertical buried pipe 6: After the water pump station 8 is started, under the strong suction of the water pump station 8, the baffle plate 607 includes a frame and a flexible plate set in the frame. The flexible plate has several through holes. The frame slides in the groove. After the water enters from the suction hole 603, it passes through the through holes and is discharged. In this process, based on the design of the groove and under the strong suction, the flexible plate moves up. Then, due to the effect of the through holes, large impurities are blocked and then blocked by the flexible plate.

[0069] The system separates accumulated water and impurities. When the pumping station 8 stops working, its strong suction disappears. Due to the vertical design of the vertical pipe 6, the flexible plate falls based on the chute design. Springs 608 are symmetrically arranged at the bottom of the chute. The springs 608 can contact the frame. The baffle plate 607 falls on the springs 608, generating a certain elastic force, causing the impurities stuck to the baffle plate 607 to fall into the collection box 5, ensuring the function of the passage hole. Due to the vertical design of the vertical pipe 6, the impact of impurities on the vertical pipe 6 is reduced. In this process, for the effect of the baffle plate 607, when the pumping station 8 is not started, the lowest point of the flexible plate is set higher than the lowest point of the suction hole 603.

[0070] The above-mentioned device solves the problem of easy clogging of buried pipes in traditional buried pipe pumping devices.

[0071] In summary, the buried pipe pumping coal mining subsidence area treatment device provided by this utility model embodiment vertically inserts a water-retaining wall into the coal mining subsidence area, sets up and connects it around the water accumulation area, and separates the outside and inside of the water accumulation area, intercepting surface runoff and shallow groundwater. A groove is set at the bottom of the foundation, and a collection box is set in the groove. Multiple vertical buried pipes are set and connected to the collection box. The other end of the vertical buried pipe is connected to a suction component for pumping water. The vertical buried pipe has a sliding groove on the inner wall of the pipe, and a baffle plate that slides up and down between the sliding grooves to prevent impurities from being sucked in. The baffle plate prevents impurities from entering the suction component. When the suction component stops working, the suction force of the baffle plate disappears, and the baffle plate falls naturally, generating a certain force, causing the impurities on the baffle plate to fall into the collection box. This solves the problem of easy clogging of buried pipes in traditional buried pipe pumping devices, improves treatment efficiency, and has a simple structure.

[0072] The above provides a detailed description of the buried pipe pumping coal mining subsidence area treatment device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A device for treating a subsidence area caused by coal mining by means of pumping water from a buried pipe, characterized in that, The application relates to a water retaining wall vertically inserted into a coal mining subsidence area, the top of the water retaining wall being higher than the ground surface of the coal mining subsidence area, a plurality of the water retaining walls being arranged around a water storage area of the coal mining subsidence area and connected, the water retaining wall being used for separating the outside and the inside of the water storage area of the coal mining subsidence area and intercepting the ground surface runoff and underground shallow water of the coal mining subsidence area, a groove being arranged at the bottom of the ground of the water storage area, a collecting box being arranged in the groove, a plurality of vertical buried pipes being connected with the collecting box and a pumping assembly for pumping water being connected with the vertical buried pipes, the vertical buried pipe comprising a head pipe connected with the pumping assembly, a top cover in communication with the head pipe, a pipe body detachably connected with the top cover, a connecting pipe with pumping holes uniformly distributed around the pipe body and arranged at the bottom of the pipe body, a sliding groove symmetrically arranged on the inner wall of the pipe body and a blocking plate arranged between the sliding grooves and sliding up and down to prevent impurities from being sucked in.

2. The apparatus according to claim 1, wherein The blocking plate comprises a frame and a flexible plate arranged in the frame, the flexible plate being provided with a plurality of through holes, and the frame being arranged in the sliding groove and sliding in the sliding groove.

3. The apparatus according to claim 2, wherein the pipe is buried in the ground. A spring symmetrically arranged at the bottom of the sliding groove is further arranged, and the spring is in contact with the frame.

4. The apparatus according to claim 3, wherein the pipe is buried in the ground. The lowest point of the flexible plate is higher than the lowest point of the pumping hole.

5. The apparatus according to claim 1, wherein the buried pipe pumping coal mining subsidence area treatment device is characterized by, The collecting box comprises a base and a cover plate, the base and the cover plate forming a cavity, the surface of the cover plate being provided with a plurality of mounting holes in communication with the cavity and a flip cover, the flip cover being used for opening and cleaning the impurities stored in the collecting box, and the collecting box being bolted with the vertical buried pipe through the mounting.

6. The apparatus of claim 1, wherein, A first threaded section is arranged at the lower end of the top cover, a second threaded section is arranged at the lower end of the connecting pipe, the top cover is threadedly connected with the pipe body of the vertical buried pipe through the first threaded section, and the connecting pipe of the vertical buried pipe is threadedly connected with the mounting hole through the second threaded section.

7. The apparatus according to claim 1, wherein the buried pipe pumping coal mining subsidence area treatment device is characterized by, The pumping assembly comprises a pumping water pipe and a pumping water pump station, the pumping water pipe being a multi-head pumping water pipe, the multi-head end of the multi-head pumping water pipe being connected with the vertical buried pipe, and the single-head end of the multi-head pumping water pipe being connected with the pumping water pump station.

8. The apparatus according to claim 7, wherein the pipe is buried in the ground. The multi-head end of the multi-head pumping water pipe is connected with the head pipe of the vertical buried pipe and is provided with a sealing adhesive layer at the connection position.

9. The device for the treatment of a subsidence terrain caused by the extraction of coal by means of a borehole pump according to any of the claims 1 to 8, characterised in that, A waterproof layer is further arranged on the surface of the water retaining wall.

10. The apparatus of claim 9, wherein the pipe is buried in the ground. A liquid level sensor is further arranged on the collecting box.

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