Pipeline dredging device and open-pit floor water prevention and control construction method

Abstract

The present disclosure relates to a pipeline dredging device and an open-pit floor water prevention and treatment construction method, the pipeline dredging device comprising two groups of traction assemblies and a dredging block, the dredging block being arranged inside the pipeline, the two groups of traction assemblies being respectively connected to the two sides of the dredging block for dragging the dredging block to move in the axial extension direction of the pipeline. Through the above technical solution, the pipeline dredging device provided by the present disclosure can periodically dredge the water guide pipe to prevent blockage.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of coal mining, in particular, to a pipeline dredging device and an open-pit mine floor water prevention construction method. BACKGROUND

[0002] In the mining process of an open-pit coal mine, the floor is usually a mud-sand interbed, the stripping material is loose and soft and sticky, and is extremely easy to soften when encountering water. When the floor water is not discharged smoothly, the inner dumping site base is easily soaked, resulting in the creep deformation of the inner dumping site base, and further affecting the stability of the inner dumping site slope, which causes hidden dangers to safety production. In order to solve the significant influence of the open-pit coal mine floor gushing water on the stability of the inner dumping site slope, the traditional drainage adopts the form of open channel drainage or water guide rubble blind ditch. However, the open channel drainage affects the path selection of backfill dumping, and the water guide rubble blind ditch is easily blocked due to the characteristics of the base material, and cannot achieve the expected effect. SUMMARY

[0003] The purpose of the present disclosure is to provide a pipeline dredging device and an open-pit mine floor water prevention construction method, which can periodically dredge the water guide pipe to prevent blockage.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a pipeline dredging device, which comprises two groups of traction assemblies and a dredging block. The dredging block is arranged inside the pipeline, and two groups of the traction assemblies are respectively connected to the two sides of the dredging block for pulling the dredging block to move along the axial extension direction of the pipeline.

[0005] Optionally, the traction assembly comprises a traction rope, one end of the traction rope is fixed to the dredging block, and the other end of the traction rope extends to the outside of the pipeline along the axial direction of the pipeline.

[0006] Optionally, the traction assembly comprises a bracket and a fixed pulley, the fixed pulley is fixed to the end of the pipeline through the bracket, and the traction rope is wound through the fixed pulley.

[0007] Optionally, the dredging block is configured in a shuttle shape.

[0008] On the basis of the above-mentioned technical solution, the present disclosure further provides an open-pit mine floor water prevention construction method, which comprises the following steps: determining the slope of the base in the extension direction thereof, and cleaning and leveling the base; digging a water guide ditch on the base along the extension direction of the base and filling the water guide ditch with a filler; placing the water guide pipe above the filler along the extension direction of the water guide ditch; laying a water-proof cloth above the water guide ditch to cover the water guide ditch and the water guide pipe; and cleaning the accumulated silt of the water guide pipe by using a pipeline dredging device.

[0009] Optionally, the range of the base is determined according to the actual mining condition; the slope of the base along the extending direction thereof is calculated according to the soil lithology; and the base is cleaned and leveled so that the slope of the base is 1°-5°.

[0010] Optionally, the filler is stone and / or sand to facilitate water drainage.

[0011] Optionally, a first sedimentation tank and a second sedimentation tank are respectively excavated at two ends of the water guide pipe so that a height difference is formed between the first sedimentation tank and the second sedimentation tank, the first sedimentation tank is higher than the second sedimentation tank, the first sedimentation tank and the second sedimentation tank are communicated through the water guide pipe; a water collecting pit is excavated on a side close to the second sedimentation tank; and the water in the second sedimentation tank is transferred to the water collecting pit through a drain pipe and a water pump.

[0012] Optionally, the first sedimentation tank and one end of the water guide pipe have a first height difference, and the second sedimentation tank and the other end of the water guide pipe have a second height difference.

[0013] Optionally, earth material is covered on the waterproof cloth to bury the water guide pipe.

[0014] Through the above technical solution, in the pipeline dredging device provided by the present disclosure, the dredging block is arranged in the pipeline, the traction assembly is fixed at two ends of the pipeline and connected with two sides of the dredging block, so as to drive the dredging block to move in the pipeline along the axial direction. When the pipeline is normally drained, the dredging block with small size does not hinder the water flow. When the pipeline is blocked, the dredging block is driven to move by controlling the traction device, so as to scatter the blockage and flush it out with the fluid in the pipeline, so as to clean the pipeline and ensure the unblocking of the pipeline.

[0015] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and together with the specific embodiments below, serve to explain the present disclosure but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 is a structural schematic diagram of the pipeline dredging device provided by the present disclosure;

[0018] Figure 2 is a partial structural schematic diagram of the pipeline dredging device provided by the present disclosure;

[0019] Figure 3 is a flowchart of the open-pit mine floor water prevention and control construction method provided by the present disclosure;

[0020] Figure 4 Figure 1 is a partial structural enlarged schematic view of a construction method for preventing floor water in an open-pit mine provided by an embodiment of the present disclosure;

[0021] Figure 5 Figure 2 is a structural schematic view of a base in the construction method for preventing floor water in an open-pit mine provided by an embodiment of the present disclosure.

[0022] Legend of reference signs

[0023] 1-pipe; 21-dredging block; 22-pulling rope; 23-fixed pulley; 24-bracket; 31-water guide ditch; 32-filler; 4-water guide pipe; 5-waterproof cloth; 6-soil material; 71-first sedimentation tank; 72-second sedimentation tank. DETAILED DESCRIPTION

[0024] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0025] In the present disclosure, the orientation words such as "inner" and "outer" used herein refer to "inner" and "outer" relative to the self outline of the corresponding component, unless otherwise stated. The terms "first", "second", and the like used in the present disclosure are used to distinguish one element from another element, and do not have sequential and important meanings. In addition, in the following description, the same reference signs in different drawings represent the same or similar elements, unless otherwise explained. The above definitions are only used to explain and illustrate the present disclosure, and should not be understood as limiting the present disclosure.

[0026] According to the specific embodiments of the present disclosure, referring to Figures 1 to 2 a pipe dredging device is provided, which comprises two groups of pulling assemblies and a dredging block 21 arranged inside the pipe 1, and the two groups of pulling assemblies are respectively connected to the two sides of the dredging block 21 for pulling the dredging block 21 to move along the axial extension direction of the pipe 1.

[0027] Through the above technical solution, in the pipe dredging device provided by the present disclosure, referring to Figure 1 as shown in the figure, by arranging the dredging block 21 in the pipe 1, fixing the pulling assemblies at the two ends of the pipe 1 and connecting them to the two sides of the dredging block 21, the dredging block 21 is pulled to move in the axial direction of the pipe 1. In this way, when the pipe 1 is normally drained, the dredging block 21 is small in size and does not hinder the flow of water. When the pipe 1 is blocked, the pulling device is controlled to drive the dredging block 21 to move, thereby scattering the blockage and flushing it out with the fluid in the pipe 1, achieving the purpose of cleaning the pipe 1 and ensuring the unblocking of the pipe 1.

[0028] In the pipeline dredging device provided by the present disclosure, as an exemplary embodiment, referring to Figure 1 The traction assembly can include a traction rope 22, one end of which can be fixed with the dredging block 21, and the other end can extend to the outside of the pipeline 1 along the axial direction of the pipeline 1. The traction rope 22 and the dredging block 21 can be fixed together in any suitable manner, which is not specifically limited in the present disclosure. As an exemplary embodiment, a connecting ring can be fixed to the end of the dredging block 21, and the traction rope 22 can be tied to the connecting ring to achieve the fixed connection of the traction rope 22 and the dredging block 21. In addition, the traction rope 22 can also be configured as a chain, a steel wire rope, etc., and fixed with the dredging block 21 by welding or other methods, which is not specifically limited in the present disclosure.

[0029] In the pipeline dredging device provided by the present disclosure, as an exemplary embodiment, referring to Figure 1 and Figure 2 The traction assembly can further include a bracket 24 and a fixed pulley 23, and the fixed pulley 23 can be fixed to the end of the pipeline 1 through the bracket 24. The traction rope 22 is wound around the fixed pulley 23, so that the direction of the force applied by the worker on the traction rope 22 can be changed by the action of the fixed pulley 23. When there is a blockage in the pipeline 1 and the dredging block 21 needs to be moved to dredge, the worker can apply an external force to the traction rope 22 in any direction. Since the traction rope 22 is wound around the fixed pulley 23, the external force can be converted into a traction force along the axial direction of the pipeline 1, thereby driving the dredging block 21 to reciprocate along the axial direction of the pipeline 1.

[0030] The dredging block 21 can be configured in any suitable shape, which is not specifically limited in the present disclosure. As an exemplary embodiment, the dredging block 21 can be configured as a shuttle shape. On the one hand, when there is a water flow in the pipeline 1, the shuttle-shaped dredging block 21 can reduce the resistance between it and the water flow as much as possible, thereby reducing the traction force required by the worker to apply to the traction rope 22. On the other hand, the shuttle-shaped dredging block 21 can also reduce the resistance between it and the blockage, thereby reducing the traction force required to disperse the blockage, achieving the purpose of saving time and effort.

[0031] On the basis of the above technical solutions, Figure 3 is a flowchart of an open-pit mine floor water prevention and control construction method provided by the present disclosure, as shown in Figure 3As shown, the present disclosure also provides a construction method for preventing and treating floor water in an open-pit mine, which comprises: determining the slope of the base along its extension direction, and cleaning and leveling the base; digging a water guide ditch 31 on the base along the extension direction of the base and filling the water guide ditch 31 with a filler 32; placing a water guide pipe 4 above the filler 32 along the extension direction of the water guide ditch 31; laying a water-proof cloth 5 above the water guide ditch 31 to cover the water guide ditch 31 and the water guide pipe 4; and cleaning the water guide pipe 4 by using a pipeline dredging device.

[0032] By digging the water guide ditch 31 with the filler 32 and the water guide pipe 4 on the base along the extension direction of the base, laying the water-proof cloth 5 above the water guide ditch 31, and arranging the pipeline dredging device in the water guide pipe 4, when the base water flows through the water guide ditch 31, it is first blocked by the water-proof cloth 5 and cannot gush out of the base, but flows along the extension direction of the base according to the slope of the base and is discharged; the water-proof cloth 5 laid on the water guide ditch 31 can prevent the base water from gushing out and the soil 6 from entering the water guide ditch 31 and causing blockage; the filler 32 in the water guide ditch 31 is generally not mixed with water, and has a certain water guiding property while filling the water guide ditch 31, so that the construction personnel can cover the soil 6 above the water guide ditch 31 according to the needs in subsequent operations to avoid affecting the passage of construction vehicles; since the water guide pipe 4 has a larger flow cross section compared with the filler 32, the arrangement of the water guide pipe 4 can further improve the water guiding performance of the water guide ditch 31; in addition, the pipeline dredging device arranged in the water guide pipe 4 can dredge the water guide pipe 4 when it is blocked, further improving the reliability of the method for draining water.

[0033] The range of the base can be determined according to the actual mining and stripping conditions, and the slope of the base along its extension direction can be calculated according to the soil and rock properties of the actual mining and stripping area, which is not specifically limited in the present disclosure. As an exemplary embodiment, the slope of the base after cleaning and leveling in the present disclosure can be 1°-5°, and in the actual production process, the slope generally extends from the higher base area at the operation site to the base area after the operation is completed or at the non-operation site. When the water guide ditch 31 and the water guide pipe 4 are arranged along the slope, the base water at the operation site can be guided to the area after the operation is completed or at the non-operation site without the need for water pumping equipment, so as to be collected subsequently.

[0034] In the construction method for preventing and treating floor water in an open-pit mine provided by the present disclosure, the filler 32 can be constructed as any material that does not soften and stick when encountering water, so as to achieve the purpose of filling the water guide ditch 31 and having a certain water guiding property, which is not specifically limited in the present disclosure. As an exemplary embodiment, the filler 32 can be constructed as a material that does not soften and stick when encountering water, such as sand, gravel, etc. Figure 4As shown in FIG. 1, the filler 32 can be stones, sand or a mixture of stones and sand, so that the filler 32 will not soften and stick together when encountering water and there is a gap between the fillers 32 to allow water to flow through, thereby further improving the water guiding property of the water guiding ditch 31.

[0035] In the open-pit mine floor water prevention and treatment construction method provided by the present disclosure, as an exemplary embodiment, reference is made to Figure 5 As shown in FIG. 1, the first sedimentation tank 71 and the second sedimentation tank 72 are respectively excavated at the two ends of the water guide pipe 4 to form a height difference between the first sedimentation tank 71 and the second sedimentation tank 72, the height of the first sedimentation tank 71 is higher than that of the second sedimentation tank 72, and the first sedimentation tank 71 and the second sedimentation tank 72 are communicated through the water guide pipe 4; a water collecting pit is excavated on the side close to the second sedimentation tank 72; and the water in the second sedimentation tank 72 is transferred to the water collecting pit through a drain pipe and a water pump. This is because the water guide pipe 4 is laid along the slope of the base, so that there is a certain height difference between the two ends of the water guide pipe 4, the first sedimentation tank 71 is excavated at the higher end of the water guide pipe 4, and the second sedimentation tank 72 is excavated at the lower end of the water guide pipe 4, so that there is a certain height difference between the first sedimentation tank 71 and the second sedimentation tank 72. In this way, when the water flow of the base is guided into the first sedimentation tank 71 through the drain ditch and the like, a certain sedimentation is performed in the first sedimentation tank 71, and then the water is guided to the second sedimentation tank 72 through the water guide pipe 4, and then the water is transferred to the water collecting pit through the drain pipe and the water pump after further sedimentation in the second sedimentation tank 72, so as to be recycled subsequently.

[0036] In the open-pit mine floor water prevention and treatment construction method provided by the present disclosure, as an exemplary embodiment, the first sedimentation tank 71 and one end of the water guide pipe 4 can have a first height difference, the second sedimentation tank 72 and the other end of the water guide pipe 4 can have a second height difference, the first height difference is the height difference between the bottom of the first sedimentation tank 71 and the end of the water guide pipe 4, the second height difference is the height difference between the bottom of the second sedimentation tank 72 and the other end of the water guide pipe 4, and the first height difference and the second height difference can be arbitrarily designed according to the depths of the first sedimentation tank 71 and the second sedimentation tank 72, which is not specifically limited in the present disclosure. For example, the first height difference can be equal to the depth of the first sedimentation tank 71 (that is, the end of the water guide pipe 4 can be located at the top of the first sedimentation tank 71), because the water flow of the base will be deposited for a period of time after flowing into the first sedimentation tank 71, and a sediment layer is formed at the bottom of the first sedimentation tank 71, so that the first height difference can ensure that the water flow enters the water guide pipe 4 and is discharged while avoiding the sediment entering the inside of the water guide pipe 4 to cause the water guide pipe 4 to be blocked. The second height difference can also be equal to the depth of the second sedimentation tank 72 (that is, the end of the water guide pipe 4 can be located at the top of the second sedimentation tank 72), so as to increase the water capacity of the second sedimentation tank 72 as much as possible.

[0037] In the open-pit mine floor water prevention and control construction method provided in the present disclosure, as an exemplary embodiment, referring to FIG. 1, a water-blocking cloth 5 is laid on the cleaned and leveled base 1, and a water guide pipe 4 is buried in the water-blocking cloth 5. The water guide pipe 4 is connected with a water guide ditch 31, and the water guide ditch 31 is filled with filling material 32. The water guide pipe 4 is connected with a dredging device 2, and the dredging device 2 is connected with a traction rope 22. The water-blocking cloth 5 is covered with earth material 6. Figure 4 As shown in FIG. 1, the water-blocking cloth 5 can be covered with the earth material 6 to bury the water guide pipe 4, because the water guide ditch 31 and the water guide pipe 4 are usually laid along the extension direction of the base, and the two sides of the extension direction of the base are the working side slope and the non-working side slope. The stripping material needs to be transported to the non-working side slope during the mining process. Covering the water-blocking cloth 5 with the earth material 6 to bury the water guide pipe 4 can avoid the influence of the water guide ditch 31 on the passing path of the transport vehicle.

[0038] In an application scenario, for example, the base has a 3% slope after being cleaned and leveled. A water guide ditch 31 with a width of 2 m and a depth of 1 m is dug on the base. The water guide ditch 31 is filled with stones with a particle size of 300 mm to 500 mm as filling material 32 to a depth of 0.8 m. A steel wire rope with a diameter of 18 mm is connected with a dredging block 21 with a diameter of 300 mm and is fixed in a water guide pipe 4 with a diameter of 1 m. An engineering vehicle lays the water guide pipe 4 with the installed dredging device on the filling material 32 and lays a water-blocking cloth 5 above. Two sedimentation tanks with a length of 20 m, a width of 10 m, and a depth of 4 m are dug at the two ends of the water guide pipe 4, respectively. The two ends of the water guide pipe 4 are located at the top of the two sedimentation tanks, respectively. A water collecting pit is dug near the sedimentation tank at the lower end of the water guide pipe 4.

[0039] In summary, in the pipe dredging device and the open-pit mine floor water prevention and control construction method provided in the present disclosure, the base water flow flows into the first sedimentation tank 71 and is deposited in the first sedimentation tank 71. When the height of the water flow reaches a certain degree, the water flow flows into the second sedimentation tank 72 along the water guide ditch 31 from the gap of the filling material 32 and the water guide pipe 4. The water flow is deposited in the second sedimentation tank 72 again. Then, the water flow is transferred to the water collecting pit through the drain pipe and the water pump for recycling. In addition, when the water guide pipe 4 is blocked during use, the traction rope 22 extending from the two ends of the water guide pipe 4 is pulled to drive the dredging block 21 to move inside the water guide pipe 4, so as to disperse the blockage inside the water guide pipe 4, and then the blockage is discharged together with the water flow into the second sedimentation tank 72.

[0040] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0041] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0042] Furthermore, the various embodiments of the present disclosure can be arbitrarily combined with each other as long as the idea of the present disclosure is not violated, and it should be considered as disclosed in the present disclosure.

Claims

1. A method for preventing and treating floor water in an open-pit mine, characterized by, The method comprises: determining the slope of the base along its extension direction and cleaning and leveling the base; digging a water channel along the extension direction of the base and filling the filling material; placing the water pipe above the filling material along the extension direction of the water channel; laying the waterproof cloth above the water channel to cover the water channel and the water pipe; cleaning the silt of the water pipe by the pipeline dredging device; covering the soil material on the waterproof cloth to bury the water pipe; digging a first sedimentation tank and a second sedimentation tank at both ends of the water pipe respectively to form a height difference between the first sedimentation tank and the second sedimentation tank, the height of the first sedimentation tank is higher than that of the second sedimentation tank, and the first sedimentation tank and the second sedimentation tank are communicated by the water pipe; digging a water collecting pit near one side of the second sedimentation tank; transferring the water in the second sedimentation tank to the water collecting pit by the drain pipe and the water pump; the first sedimentation tank and one end of the water pipe have a first height difference, and the second sedimentation tank and the other end of the water pipe have a second height difference.

2. The open-pit floor water control construction method according to claim 1, characterized by, The determination of the slope of the base along its extension direction and the cleaning and leveling of the base comprise: determining the range of the base according to the actual mining and stripping condition; calculating the slope of the base along its extension direction according to the soil and rock properties; cleaning and leveling the base to make the slope of the base 1°~5°.

3. The strip floor water control construction method according to claim 1, characterized by, The filling material is stone and / or sand to facilitate water drainage.

4. A pipe de-silting device characterised in that, The pipeline dredging device is suitable for the open-pit mine floor water prevention and control construction method according to any one of claims 1-3, the pipeline dredging device comprises two groups of traction assemblies and a dredging block, the dredging block is arranged inside the pipeline, and two groups of the traction assemblies are connected to two sides of the dredging block respectively to move the dredging block along the axial extension direction of the pipeline.

5. The pipe cleaning device of claim 4, wherein, The traction assembly comprises a traction rope, one end of the traction rope is fixed to the dredging block, and the other end extends to the outside of the pipeline along the axial direction of the pipeline.

6. The pipe cleaning device of claim 5, wherein, The traction assembly comprises a bracket and a fixed pulley, the fixed pulley is fixed to the end of the pipeline through the bracket, and the traction rope is wound around the fixed pulley.

7. A pipe de-clogging device according to any one of claims 4-6, characterized in that, The dredging block is configured as a shuttle shape.

Images