Precipitation cleaning device for coal mine suction well

Abstract

The utility model belongs to the technical field of coal mine water treatment, and provides a sediment cleaning device for a coal mine water absorption well, which effectively guarantees the cleanliness of coal mine stored water recycling. According to the technical scheme, the sediment cleaning device for the coal mine suction well comprises a water storage tank, the suction well and a water suction pipe, the water storage tank and the suction well are both formed by concrete pouring, a water inlet in the upper portion of the water storage tank is communicated with the lower middle portion of a sedimentation tank through a pipeline, and the suction well is arranged on one side of the water storage tank. The inner bottom face of the water suction well is lower than the inner bottom face of the reservoir, the top end of the water suction well is higher than the top end of the reservoir, a water delivery port communicated with the water suction well is formed in the lower middle portion of the reservoir, an opening and closing sealing cover assembly is arranged on one side of the water delivery port, and one end of the water suction pipe extends into the lower middle portion in the water suction well. The other end of the water suction pipe is located outside the water suction well, a water suction pump is installed on the water suction pipe, and the upper end of the water suction well is open and covered with a well lid.

Description

Technical Field

[0001] The utility model discloses a sedimentation cleaning device for a coal mine water absorption well, which belongs to the technical field of coal mine water treatment, and in particular relates to sludge sedimentation treatment for a coal mine water absorption well. Background Art

[0002] Water reservoirs are set up underground in coal mines. Before the water in the reservoirs is put back into use, a large amount of coal powder impurities need to be filtered out first. Currently, coal powder impurities are generally filtered in sedimentation tanks, but some floating coal powder still flows in. Over time, the water suction pump will be blocked and the effective water storage volume will be affected.

[0003] On the basis of the sedimentation tank, we set up a suction well on one side of the reservoir (the suction well is used to guide the initially filtered water in the reservoir into the suction well, and then the suction pump is used to extract it). However, it cannot completely prevent the suction pump from absorbing coal powder, and the suction well will accumulate a large amount of coal powder sediment after a certain period of time. When cleaning, it is also necessary to drain the water completely and then go down the well to manually dig, which is troublesome and unsafe. In order to further improve the purity of the water reuse in the reservoir and reduce the difficulty of maintenance and cleaning, we need to improve the suction well again. Utility Model Content

[0004] In order to solve one of the above technical defects, the utility model provides a sedimentation cleaning device for a coal mine water absorption well, which effectively ensures the cleanliness of coal mine water storage and reuse.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a coal mine water absorption well sedimentation cleaning device, including a water storage tank, a water absorption well and a water absorption pipe;

[0006] The water storage tank and the water absorption well are both made of concrete casting. The upper water inlet of the water storage tank is connected with the middle and lower part of the sedimentation tank through a pipeline. A water absorption well is provided on one side of the water storage tank. The inner bottom surface of the water absorption well is lower than the inner bottom surface of the water storage tank. The top of the water absorption well is higher than the top of the water storage tank. The middle and lower part of the water storage tank is provided with a water delivery port connected with the water absorption well.

[0007] An opening and closing cover assembly is provided on one side of the water delivery port;

[0008] One end of the water suction pipe extends into the middle and lower part of the water suction well, and the other end of the water suction pipe is located outside the water suction well and a water suction pump is installed on the pipe;

[0009] The upper end of the water absorption well is open and covered with a well cover.

[0010] A slag cleaning mechanism is installed inside the water absorption well;

[0011] The slag cleaning mechanism includes a fixed frame, a sediment basin, a protective box, a mud pump and a slurry suction pipe. The slurry suction pipe is fixed to the inside of the water suction well through the fixed frame, the bottom end of the slurry suction pipe is located at the bottom of the water suction well, and the top end of the slurry suction pipe is located at the top of the water suction well. The fixed frame is a frame composed of multiple steel rods radially welded to the upper outer wall of the slurry suction pipe. Multiple ends of the fixed frame are fixedly connected to the embedded parts of the inner wall of the water suction well through bolt connectors. The sediment basin is a basin-shaped structure with an open upper end. The center of the sediment basin is sealed and fixedly connected to the top outer wall of the slurry suction pipe. The bottom surface of the sediment basin is fixed to the fixed frame, and a protective box is fixedly installed under the fixed frame and one side of the protective box is fixedly connected to the inner wall of the water suction well. A mud pump is installed inside the protective box, and the mud pump is connected to the slurry suction pipe.

[0012] An inner cylinder is installed inside the basin, the bottom end of the inner cylinder is fixed at the center of the bottom surface of the basin and the slurry extraction pipe is located in the inner cylinder. The top of the inner cylinder is higher than the top of the basin and is higher than the basin. A plurality of water seepage holes are provided on the cylinder wall.

[0013] The bottom end of the water suction pipe located in the water suction well is at least 30 cm higher than the bottom end of the slurry suction pipe.

[0014] A water level monitor is installed on the inner wall of the water suction well, and the water level monitor is at least 10 cm higher than the bottom end of the water suction pipe.

[0015] The opening and closing cover assembly includes a cover, a connecting rod and a guide cylinder. The cover is installed on the water inlet. The side of the cover away from the water inlet is fixedly connected to the bottom end of the connecting rod. At least two guide cylinders are slidably sleeved on the connecting rod. The guide cylinders are respectively fixed on the inner wall of the water tank or embedded in the top wall of the water tank. An operating handle is provided at the upper end of the connecting rod.

[0016] A filter element for filtering residues is installed in the water delivery port.

[0017] The top of the water absorption well is 50-100 cm higher than the top of the water storage tank.

[0018] The installation positions of the fixing frame, the sedimentation basin and the protection box are all higher than the top of the water reservoir.

[0019] By adopting the sedimentation and cleaning device for the coal mine water absorption well provided by the utility model, the coal mine water storage is effectively precipitated for multiple times to ensure the purity of the stored water for reuse; a slag cleaning mechanism is installed in the water absorption well to realize the effective transfer of sediment in the water absorption well from bottom to top, reduce the difficulty of slag cleaning, and realize efficient and convenient maintenance of the water absorption well.

[0020] Other features and advantages of the utility model will be described in the subsequent description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the contents indicated in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown, the utility model of the coal mine water absorption well sediment cleaning device comprises a water reservoir 1, a water absorption well 2 and a water absorption pipe 5;

[0025] The water reservoir 1 and the water suction well 2 are both constructed of concrete. The upper water inlet of the water reservoir 1 is connected to the middle and lower part of the sedimentation tank through a pipeline. The recycled water is first sent to the water reservoir 1 for storage after preliminary sedimentation in the sedimentation tank. A water suction well 2 is provided on one side of the water reservoir 1. The inner bottom surface of the water suction well 2 is lower than the inner bottom surface of the water reservoir 1, and the top of the water suction well 2 is 50-100 cm higher than the top of the water reservoir 1. A water delivery port 3 connected to the water suction well 2 is provided in the middle and lower part of the water reservoir 1, and an opening and closing cover assembly 4 is provided on one side of the water delivery port 3; one end of the water suction pipe 5 extends into the middle and lower part of the water suction well 2, and the other end of the water suction pipe 5 is located outside the water suction well 2 and a water suction pump 6 is installed on the pipeline; the upper end of the water suction well 2 is open and covered with a well cover 7.

[0026] After the opening and closing cover assembly 4 is opened, the water in the water reservoir 1 is sent into the water absorption well 2 through the water inlet 3 until the water in the water absorption well 2 is level with the water surface in the water reservoir 1. The opening and closing cover assembly 4 is closed. In the closed state, the water collected in the water reservoir 1 will not cause the water in the water absorption well 2 to flow and affect the sedimentation. After the water in the water absorption well 2 has been fully precipitated for a certain period of time, the water absorption pump 6 is started, and the clean water (here the clean water refers to the water resources that meet the mine water reuse standards) is output through the water absorption pipe 5.

[0027] A slag cleaning mechanism is installed inside the water absorption well 2;

[0028] The slag cleaning mechanism includes a fixed frame 8, a sediment basin 9, a protective box 10, a mud pump and a slurry suction pipe 12. The slurry suction pipe 12 is fixed inside the water suction well 2 through the fixed frame 8. The bottom end of the slurry suction pipe 12 is located at the bottom of the water suction well 2, and the top end of the slurry suction pipe 12 is located at the top of the water suction well 2. The fixed frame 8 is a frame composed of multiple steel rods radially welded to the upper outer wall of the slurry suction pipe 12. Multiple ends of the fixed frame 8 are fixedly connected to the embedded parts of the inner wall of the water suction well 2 through bolt connectors. The sediment basin 9 is a basin-shaped structure with an open upper end. The center of the sediment basin 9 is sealed and fixedly connected to the top outer wall of the slurry suction pipe 12. The bottom surface of the sediment basin 9 is fixed on the fixed frame 8. The protective box 10 is fixedly installed below the fixed frame 8 and one side of the protective box is fixedly connected to the inner wall of the water suction well 2. A mud pump is installed inside the protective box 10, and the mud pump is connected to the slurry suction pipe 12.

[0029] An inner cylinder 11 is installed inside the sediment basin 9, the bottom end of the inner cylinder 11 is fixed at the center of the bottom surface of the sediment basin and the slurry extraction pipe 12 is located in the inner cylinder 11. The top of the inner cylinder 11 is higher than the top of the sediment basin 9 and higher than the sediment basin 9. A plurality of seepage holes 18 are provided on the cylinder wall.

[0030] Under the action of the mud pump, the slurry suction pipe 12 draws the sediment at the bottom of the water suction well 2 to the top and flows into the inner tube 11. The standard of the extraction volume is less than half of the capacity of the inner tube 11 once, and the total amount of two times is higher than the seepage holes 18 in the bottom row of the inner tube 11. The water in the inner tube 11 is fully precipitated. After two extractions, some turbid water seeps out of the inner tube 11, and then continues to settle in the sediment basin 9. After there is more water in the sediment basin 9, relatively clean water overflows and flows back into the water suction well 2. In this process, most of the sediment extracted from the bottom of the water suction well 2 is concentrated in the inner tube 11, and a small part is precipitated again in the sediment basin 9. A trace amount of sediment overflows with the water and enters the water suction well 2 for further precipitation. This process can maximize the effective transfer of sediment from bottom to top. The staff can remove the manhole cover 7 at specific maintenance time to directly clean the sediment in the sediment basin 9 and the inner tube 11. There is no need to drain the water suction well 2 or go down the well. It is convenient, safe and efficient.

[0031] The top of the water absorption well 2 is 50-100 cm higher than the top of the water storage tank 1, that is, in actual construction, the top surface of the water storage tank 1 is flat on the ground, and the top of the water absorption well 2 is 50-100 cm higher than the ground, which is suitable for maintenance operations on the upper parts of the water absorption well 2 after opening the well cover 7. The maintenance time can be set to the time when the opening and closing cover assembly 4 is opened to store water, during which the water absorption pump 6 and the mud pump do not work.

[0032] The mud pump in the present application works intermittently, not continuously. According to the actual sedimentation amount of the water suction well 2 at the installation site, the mud pump is set to work once at regular intervals to extract a certain amount of bottom sediment.

[0033] The connection between the sediment basin 9 and the inner cylinder 11 and the slurry suction pipe 12 in the utility model can adopt a detachable structure. When cleaning the sediment in the water suction well, the well cover is opened and the sediment basin 9 and the inner cylinder 11 therein are directly taken out for cleaning.

[0034] The bottom end of the water suction pipe 5 located in the water suction well 2 is at least 30 cm higher than the bottom end of the slurry suction pipe 12 to prevent sediment from being sucked into the water suction pipe 5 .

[0035] A water level monitor 13 is installed on the inner wall of the water absorption well 2. The water level monitor 13 is at least 10 cm higher than the bottom of the water absorption pipe 5. When the water volume in the water absorption well 2 is insufficient, the water level monitor issues a warning, and the staff opens the opening and closing cover assembly 4 to store water again.

[0036] When the present application is in use, when the suction pipe 5 extracts clean water, the system needs to ensure that the water in the suction well 2 has been settled for a sufficient amount of time, and that the mud pump has not performed the work of extracting the bottom sediment within a certain period of time before pumping water (extracting the bottom sediment will cause water flow, and within a certain period of time after the mud pump starts working, water will overflow and fall from the sediment basin 9, which will affect the cleanliness of the water to a certain extent).

[0037] The opening and closing cover assembly 4 includes a cover 14, a connecting rod 15 and a guide cylinder 16. The cover 14 is mounted on the water inlet 3. The side of the cover 14 away from the water inlet 3 is fixedly connected to the bottom end of the connecting rod 15. At least two guide cylinders 16 are slidably sleeved on the connecting rod 15. The guide cylinders 16 are respectively fixed on the inner wall of the water reservoir 1 or pre-buried in the top wall of the water reservoir 1. An operating handle 17 is provided on the upper end of the connecting rod 15. This structure is a structure of a manually opened and closed opening and closing cover assembly 4. The connecting rod 15 is controlled to move up and down in the guide cylinder 16 by manually pulling the handle 17. The installation position of the guide cylinder 16 must ensure the vertical movement of the connecting rod 15, thereby ensuring that the cover 14 is effectively mounted on the water inlet 3, and the cover 14 opens and closes the water inlet 3. In the present application, a limit plate can be provided at the lower end of the water inlet 3 to limit the lower limit position of the bottom end of the cover 14, and a slot for hanging the handle 1 can be fixed above the handle 17. The handle 1 can be hung on the slot during water discharge to free the hands of the staff.

[0038] The connecting rod 15 of the utility model can also be controlled by an electric structure along the guide cylinder 16, which can be realized by existing technology. This application is only used to illustrate the opening and closing method of the opening and closing cover assembly 4, and its specific structure is not described in detail in this application.

[0039] A filter element for filtering residues is installed in the water delivery port 3 to further filter the stored water flowing into the water absorption well.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A coal mine water absorption well sedimentation cleaning device, characterized in that: It comprises a water reservoir (1), a water suction well (2) and a water suction pipe (5); The water reservoir (1) and the water absorption well (2) are both constructed of concrete. The upper water inlet of the water reservoir (1) is connected to the middle and lower parts of the sedimentation tank via a pipeline. A water absorption well (2) is provided on one side of the water reservoir (1). The inner bottom surface of the water absorption well (2) is lower than the inner bottom surface of the water reservoir (1). The top of the water absorption well (2) is higher than the top of the water reservoir (1). A water delivery port (3) connected to the water absorption well (2) is provided in the middle and lower part of the water reservoir (1). An opening and closing cover assembly (4) is provided on one side of the water delivery port (3); One end of the water suction pipe (5) extends into the middle and lower part of the water suction well (2), and the other end of the water suction pipe (5) is located outside the water suction well (2) and a water suction pump (6) is installed on the pipe; The upper end of the water absorption well (2) is open and is covered with a well cover (7).

2. The coal mine water absorption well sediment cleaning device according to claim 1 is characterized in that: A slag cleaning mechanism is installed inside the water absorption well (2); The slag cleaning mechanism comprises a fixed frame (8), a sediment basin (9), a protection box (10), a mud pump and a mud pumping pipe (12). The mud pumping pipe (12) is fixed inside the water suction well (2) through the fixed frame (8). The bottom end of the mud pumping pipe (12) is located at the bottom of the water suction well (2). The top end of the mud pumping pipe (12) is located at the top of the water suction well (2). The fixed frame (8) is a frame formed by a plurality of steel rods radially welded to the upper outer wall of the mud pumping pipe (12). The plurality of ends of the fixed frame (8) are The sediment basin (9) is fixedly connected to the embedded parts of the inner wall of the water suction well (2) by bolt connectors. The sediment basin (9) is a basin-shaped structure with an open upper end. The center of the sediment basin (9) is sealed and fixedly connected to the top outer wall of the slurry extraction pipe (12). The bottom surface of the sediment basin (9) is fixed to the fixing frame (8). A protection box (10) is fixedly installed below the fixing frame (8) and one side of the protection box is fixedly connected to the inner wall of the water suction well (2). A slurry pump is installed inside the protection box (10) and the slurry pump is connected to the slurry extraction pipe (12).

3. The device for cleaning the sedimentation of a coal mine water absorption well according to claim 2 is characterized in that: An inner cylinder (11) is installed inside the sediment basin (9), the bottom end of the inner cylinder (11) is fixed at the center of the bottom surface of the sediment basin, and the slurry extraction pipe (12) is located inside the inner cylinder (11), the top end of the inner cylinder (11) is higher than the top end of the sediment basin (9) and higher than the sediment basin (9), and a plurality of water seepage holes (18) are provided on the cylinder wall.

4. The coal mine water absorption well sedimentation cleaning device according to claim 2 is characterized in that: The bottom end of the water suction pipe (5) located in the water suction well (2) is at least 30 cm higher than the bottom end of the slurry extraction pipe (12).

5. The device for cleaning the sedimentation of a coal mine water absorption well according to claim 2, characterized in that: A water level monitor (13) is installed on the inner wall of the water suction well (2), and the water level monitor (13) is at least 10 cm higher than the bottom end of the water suction pipe (5).

6. The coal mine water absorption well sedimentation cleaning device according to claim 2 is characterized in that: The opening and closing cover assembly (4) comprises a cover (14), a connecting rod (15) and a guide cylinder (16); the cover (14) is mounted on the water delivery port (3); a side of the cover (14) away from the water delivery port (3) is fixedly connected to the bottom end of the connecting rod (15); at least two guide cylinders (16) are slidably sleeved on the connecting rod (15); the guide cylinders (16) are respectively fixed on the inner wall of the water reservoir (1) or embedded in the top wall of the water reservoir (1); and an operating handle (17) is provided at the upper end of the connecting rod (15).

7. The device for cleaning the sedimentation of a coal mine water absorption well according to claim 1, characterized in that: A filter element for filtering residues is installed in the water delivery port (3).

8. The device for cleaning the sedimentation of a coal mine water absorption well according to claim 1, characterized in that: The top of the water absorption well (2) is 50-100 cm higher than the top of the water reservoir (1).

9. The device for cleaning the sedimentation of a coal mine water absorption well according to claim 2, characterized in that: The installation positions of the fixing frame (8), the sedimentation basin (9), and the protection box (10) are all higher than the top of the water reservoir (1).

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