Slurry station sedimentation tank

Abstract

The utility model relates to a mud station sedimentation tank, and belongs to the technical field of hydraulic engineering, the mud station sedimentation tank comprises a tank body with an open top, a mud scraper assembly slidably mounted in the tank body and a motor set driving the mud scraper assembly to slide, and a concrete cushion layer is arranged on the bottom side in the tank body; the top of the concrete cushion layer is provided with a gradient slope which is convenient for the slurry to gather to one side of the pool body, and the sliding direction of the slurry scraper assembly is consistent with the inclination direction of the gradient slope. The device has the effect of improving the convenience of cleaning the waste slurry in the sedimentation tank.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy engineering, and in particular to a sedimentation tank for a mud station. Background Art

[0002] The construction of a hydropower station's dam's anti-seepage wall is a hydraulic engineering project. During construction, a slurry station is deployed to coordinate with the percussion drill. The slurry station consists of a slurry preparation tank, a slurry storage tank, a sedimentation tank, a transfer pump, and pipelines. During construction, mud that meets the drilling rig's performance requirements is prepared in the slurry preparation tank and transferred to the slurry storage tank for storage. Mud containing impurities generated during drilling is piped to the sedimentation tank for sedimentation. The settled mud is then recycled and reused. Meanwhile, waste slurry or residue from the sedimentation tank is pumped out by a slurry pump for centralized disposal.

[0003] In the prior art, the bottom of the sedimentation tank at a slurry station is flat, so the waste slurry settles and disperses to every corner of the tank. Cleaning the waste slurry from the sedimentation tank requires workers standing by the tank to move around with a mud pump, or workers to enter the tank and use tools to gather the waste slurry in a certain area before pumping it out with a mud pump, making cleaning the waste slurry from the sedimentation tank quite inconvenient. Utility Model Content

[0004] In order to improve the convenience of cleaning waste slurry in the sedimentation tank, the present application provides a mud station sedimentation tank.

[0005] This application provides a mud station sedimentation tank, which adopts the following technical solution:

[0006] A mud station sedimentation tank comprises a tank body with an open top, a mud scraper assembly slidably installed inside the tank body, and a motor group for driving the mud scraper assembly to slide. A concrete cushion layer is provided on the bottom side of the tank body, and a sloped surface is provided on the top of the concrete cushion layer to facilitate the accumulation of mud on one side of the tank body. The sliding direction of the mud scraper assembly is consistent with the inclination direction of the sloped surface.

[0007] In order to enable the mud scraper assembly to always abut against the slope surface during movement to push the waste mud to the lowest point of the slope surface, the mud scraper assembly includes a sliding top plate and a telescopic bottom plate, the telescopic bottom plate is slidably installed on the bottom of the sliding top plate, and the bottom of the telescopic bottom plate abuts against the slope surface.

[0008] In order to enable the telescopic bottom plate to move adaptively in a directional manner according to the inclination angle of the slope, a telescopic groove is provided on the top of the telescopic bottom plate, and the bottom of the sliding top plate is inserted into the telescopic groove.

[0009] In order to increase the weight of the telescopic base plate and improve the fit between the telescopic base plate and the sloped surface, a counterweight bar is provided in the telescopic groove to increase the weight of the telescopic base plate.

[0010] In order to flush the waste mud remaining on the concrete cushion layer on the other side of the telescopic bottom plate after the telescopic bottom plate moves to improve cleanliness, a high-pressure nozzle for flushing the concrete cushion layer is provided on the side wall of the telescopic bottom plate close to the higher side of the slope.

[0011] In order to enable the muddy water after flushing to automatically flow to the side with a lower slope under the action of the slope, a sewage through hole is opened on the side of the telescopic bottom plate where the high-pressure nozzle is set to pass through the telescopic bottom plate for sewage to flow into the other side of the telescopic bottom plate.

[0012] In order to prevent waste sludge from entering the other side of the telescopic bottom plate from the sewage through hole during the movement of the telescopic bottom plate, a lifting plate capable of shielding the sewage through hole is provided on the side of the telescopic bottom plate away from the high-pressure nozzle.

[0013] In order to control the automatic lifting of the lifting plate during the process of cleaning the waste mud, a lifting motor for driving the lifting plate to move up and down is provided on the sliding top plate.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. Since there is a slope on the top of the concrete cushion, the waste slurry automatically gathers on the lower side of the slope under the action of gravity. The staff only needs to place the pump head of the mud pump on the lower side of the slope in the tank. As the waste slurry is extracted, the waste slurry at the higher position of the slope will automatically be replenished to the lower part of the slope under the action of gravity. The staff does not need to carry the mud pump around, thereby improving the convenience of cleaning the waste slurry.

[0016] 2. If the waste slurry at a higher position on the slope is difficult to flow to a lower position on the slope under the action of gravity, the motor group can be used to control the movement of the slurry scraper assembly to push the waste slurry to the lower position on the slope. Since the telescopic bottom plate is relatively slidably mounted on the sliding top plate, the telescopic bottom plate can adaptively change with the change of the slope angle during movement, thereby ensuring that the telescopic bottom plate always contacts the concrete cushion during movement.

[0017] 3. After the telescopic bottom plate pushes the waste slurry on the concrete cushion layer to move to the lower side of the slope, the high-pressure nozzle will spray water to the passing area to flush the residual waste slurry on the concrete cushion layer. The sewage formed after flushing will flow into the lower slope through the sewage through hole, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the sedimentation tank in the embodiment of the present application.

[0019] Figure 2 It is a three-dimensional cross-sectional view of the sedimentation tank in the embodiment of the present application.

[0020] Figure 3 It is an exploded schematic diagram of the mud scraper assembly in an embodiment of the present application.

[0021] Figure 4 It is a schematic diagram of the overall structure of the mud scraper assembly in an embodiment of the present application.

[0022] Explanation of the accompanying symbols: 1. Tank body; 11. Concrete cushion layer; 12. Slope; 2. Mud scraper assembly; 21. Sliding top plate; 22. Telescopic bottom plate; 23. Telescopic slot; 24. Counterweight bar; 25. High-pressure nozzle; 26. Sewage through hole; 27. Angle iron; 28. Lifting plate; 29. Lifting motor; 3. Motor group; 31. Transmission motor; 32. Transmission screw; 33. Support. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-4 This application is described in further detail.

[0024] The present application discloses a sedimentation tank for a mud station. Figure 1 The mud station sedimentation tank includes a tank body 1, a mud scraper assembly 2, and a motor unit 3. The tank body 1 is used to store mud. After the mud settles, the mud water is pumped away for recycling, while the waste mud is deposited at the bottom of the tank body 1. Driven by the motor unit 3, the mud scraper assembly 2 slides within the tank body 1, pushing the waste mud to one side for collection. The mud pump then needs to be fixed on the waste mud collection side.

[0025] Reference Figure 1 and Figure 2 A concrete cushion layer 11 is cast at the bottom of the tank body 1, and the surrounding walls are constructed of mortared stone. In this embodiment, the tank body 1 is preferably rectangular. A sloped surface 12 is provided on the top of the concrete cushion layer 11, sloping along the length of the tank body 1. That is, the distance from one side of the bottom of the tank body 1 to the top is lower than the distance from the other side to the top. Under the influence of gravity, waste slurry flows toward the lower side of the slope 12, eliminating the need for workers to enter the tank body 1 and use tools to collect the waste slurry at a centralized location.

[0026] Reference Figure 2 and Figure 3The sliding direction of the mud scraper assembly 2 is consistent with the inclination direction of the slope 12, that is, the sliding direction of the mud scraper assembly 2 is the longitudinal direction of the tank body 1. The mud scraper assembly 2 includes a sliding top plate 21 and a telescopic bottom plate 22. The telescopic bottom plate 22 is vertically slidably mounted on the sliding top plate 21. The telescopic bottom plate 22 slides synchronously with the sliding top plate 21, and the bottom of the telescopic bottom plate 22 is in contact with the slope 12. This design allows the sliding top plate 21 and the telescopic bottom plate 22 to automatically move according to changes in the slope 12 during movement, thereby ensuring that the telescopic bottom plate 22 is in contact with the slope 12 throughout the entire movement process.

[0027] Reference Figure 1 and Figure 2 The motor group 3 is located at the top of the tank body 1 and drives the sliding top plate 21 to move. There are two motor groups 3, which are arranged at intervals along the width direction of the tank body 1. The two motor groups 3 have the same structure. The following is an example of one motor group 3.

[0028] The motor assembly 3 includes a transmission motor 31 and a transmission screw 32. A support 33 is provided on one side of the tank body 1 along its length, and the transmission motor 31 is fixedly mounted on top of the support 33. The transmission screw 32 is mounted on the transmission motor 31 and extends along the length of the tank body 1. The transmission screw 32 is driven by the transmission motor 31. The end of the transmission screw facing away from the transmission motor 31 passes through the sliding top plate 21 and is threadedly connected to the sliding top plate 21. Rotation of the transmission screw 32 drives the sliding top plate 21 to slide.

[0029] Reference Figure 2 and Figure 3 A telescopic groove 23 is formed on the side of the telescopic bottom plate 22 near the sliding top plate 21. The bottom of the sliding top plate 21 is inserted into the telescopic groove 23, thereby allowing the sliding top plate 21 to guide the sliding of the telescopic bottom plate 22. It is worth noting that even when the telescopic bottom plate 22 is at the lowest position of the slope 12, the bottom of the sliding top plate 21 is still located in the telescopic groove 23.

[0030] A counterweight bar 24 is placed at the bottom of the telescopic groove 23. The weight of the telescopic bottom plate 22 is increased by the counterweight bar 24, so that the telescopic bottom plate 22 can fit closely to the slope surface 12 under the action of gravity during movement, thereby pushing the waste slurry on the slope surface 12 to the maximum extent, thereby improving the effect of cleaning the waste slurry.

[0031] Reference Figure 2 and Figure 3A high-pressure nozzle 25 is installed on the side of the telescopic base 22 near the higher end of the sloped surface 12. The nozzle 25 is installed at an angle on the telescopic base 22, that is, it is tilted toward the concrete cushion 11. When the telescopic base 22 pushes the waste slurry, the nozzle 25 sprays water toward the higher part of the sloped surface 12 after the telescopic base 22 passes, flushing the waste slurry adhered to the concrete cushion 11. Multiple high-pressure nozzles 25 are provided, and they are spaced apart along the width of the tank body 1 on the telescopic base 22.

[0032] A sewage hole 26 is formed on the side of the telescopic base 22 where the high-pressure nozzle 25 is located. The sewage hole 26 extends through the telescopic base 22 along the sliding direction of the telescopic base 22. The sewage hole 26 also extends through the telescopic base 22 on the side closest to the slope 12. The sewage generated by the high-pressure nozzle 25 when flushing the concrete cushion 11 flows through the sewage hole 26 to the lower side of the slope 12 under the action of the slope 12.

[0033] Combine Figure 2 Reference Figure 3 and Figure 4 Two L-shaped angle irons 27 are fixedly mounted on the side of the telescopic base 22 facing away from the high-pressure nozzles 25. These angle irons 27 are symmetrically arranged along the width of the tank 1 and extend vertically. A lifting plate 28 is slidably mounted between the two angle irons 27 to shield the sewage through-hole 26. This prevents waste slurry from flowing back through the sewage through-hole 26 and onto the higher side of the telescopic base 22 near the sloped surface 12 when the waste slurry is moved. Furthermore, the bottom of the lifting plate 28 is aligned with the sloped surface 12.

[0034] Reference Figure 3 and Figure 4 A motor support plate is fixedly installed on the same side of the sliding top plate 21 and the telescopic bottom plate 22 where the lifting plate 28 is set. A lifting motor 29 is fixedly installed on the motor support plate. A steel wire rope is wound around the motor shaft of the lifting motor 29. The end of the steel wire rope facing away from the lifting motor 29 passes through the motor support plate and is located below the motor support plate and is fixedly installed on the top of the lifting plate 28. After the lifting motor 29 drives the motor shaft to rotate, it can drive the steel wire rope to be wound around the motor shaft, thereby controlling the lifting and lowering of the lifting plate 28 to open or block the sewage through hole 26.

[0035] The implementation principle of a mud station sedimentation tank in an embodiment of the present application is as follows: through the provision of a sloped surface 12, waste slurry automatically gathers on the lower side of the sloped surface 12 under the action of gravity. If the waste slurry at the higher position of the sloped surface 12 is not easy to flow to the lower part of the sloped surface 12 under the action of gravity, the motor group 3 can be used to drive the mud scraper assembly 2 to push the waste slurry toward the lower side of the sloped surface 12. In this case, the staff only needs to place the pump head of the mud pump on the lower side of the sloped surface 12 in the tank body 1. As the waste slurry is extracted, the waste slurry at the higher position of the sloped surface 12 will automatically be replenished to the lower part of the sloped surface 12 under the action of gravity.

[0036] Since the slope inclined surface 12 is an inclined surface, the telescopic bottom plate 22 is slidably installed on the sliding top plate 21 during the movement of the mud scraper assembly 2. Therefore, the telescopic bottom plate 22 can adaptively change with the change of the inclination angle of the slope inclined surface 12 during the movement, thereby ensuring that the telescopic bottom plate 22 is always in contact with the concrete pad 11 during the movement, thereby improving the cleaning effect.

[0037] Finally, when the mud scraper assembly 2 is pushing the waste slurry to move, the high-pressure nozzle 25 will spray water to the passing area to flush the waste slurry remaining on the concrete cushion layer 11. When the mud scraper moves in the opposite direction to the higher part of the slope slope 12 for a certain distance without contacting the pushed waste slurry, the lifting plate 28 will be opened to allow the sewage formed after flushing to flow into the lower part of the slope slope 12 through the sewage through hole 26, thereby further improving the cleaning effect.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sedimentation tank for a slurry station, characterized by: The invention comprises a pool body (1) with an open top, a mud scraper assembly (2) slidably mounted inside the pool body (1), and a motor group (3) for driving the mud scraper assembly (2) to slide. A concrete cushion layer (11) is provided on the bottom side of the pool body (1), and a sloped surface (12) is provided on the top of the concrete cushion layer (11) for facilitating mud accumulation on one side of the pool body (1). The sliding direction of the mud scraper assembly (2) is consistent with the inclination direction of the sloped surface (12).

2. A mud station sedimentation tank according to claim 1, characterized in that: The mud scraper assembly (2) comprises a sliding top plate (21) and a telescopic bottom plate (22), wherein the telescopic bottom plate (22) is slidably mounted on the bottom of the sliding top plate (21), and the bottom of the telescopic bottom plate (22) abuts against the sloped surface (12).

3. A mud station sedimentation tank according to claim 2, characterized in that: A telescopic groove (23) is provided on the top of the telescopic bottom plate (22), and the bottom of the sliding top plate (21) is inserted into the telescopic groove (23).

4. A mud station sedimentation tank according to claim 3, characterized in that: A counterweight bar (24) for increasing the weight of the telescopic bottom plate (22) is provided in the telescopic groove (23).

5. The slurry station sedimentation tank according to claim 2, characterized in that: A high-pressure nozzle (25) for flushing the concrete cushion layer (11) is provided on the side wall of the telescopic bottom plate (22) close to the higher side of the sloped surface (12).

6. A mud station sedimentation tank according to claim 5, characterized in that: A sewage through hole (26) is provided on one side of the telescopic bottom plate (22) where the high-pressure nozzle (25) is arranged, and passes through the telescopic bottom plate (22) to allow sewage to flow into the other side of the telescopic bottom plate (22).

7. The sedimentation tank of a slurry station according to claim 6, characterized in that: A lifting plate (28) capable of shielding the sewage through hole (26) is provided on the side of the telescopic bottom plate (22) facing away from the high-pressure nozzle (25).

8. The sedimentation tank of a slurry station according to claim 7, characterized in that: The sliding top plate (21) is provided with a lifting motor (29) for driving the lifting plate (28) to move up and down.

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