Dredging and sludge discharging device and dredging and sludge discharging device

Abstract

The utility model provides a desilting and sludge discharging device and a desilting and sludge discharging device, and belongs to the technical field of sludge discharging equipment, the desilting and sludge discharging device comprises a siphon pipeline, a clear water pipeline, a sludge discharging pipeline, a sludge suction pipeline and a first control valve, the siphon pipeline is longitudinally arranged, and the inner diameter of the siphon pipeline is gradually increased from bottom to top; the bottom end of the siphon pipeline is communicated with the clear water pipeline, the top end of the siphon pipeline is communicated with the sludge discharge pipeline, the fixed end of the sludge suction pipeline is communicated with the side wall of the bottom end of the siphon pipeline, the free end of the sludge suction pipeline extends into the bottom of the pre-sedimentation tank, the first control valve is arranged on the sludge suction pipeline, and clear water is introduced into the siphon pipeline through the clear water pipeline. When the sludge is discharged, the first control valve is closed, so that clear water in the siphon pipeline is discharged from the free end of the sludge suction pipeline to wash the coal slime in the precipitation layer into coal slime slurry, and when the sludge is discharged, the first control valve is opened, the clear water in the siphon pipeline is discharged from the sludge discharge pipeline, so that negative pressure is formed at the free end of the sludge suction pipeline to suck the coal slime slurry, and the coal slime slurry is discharged from the sludge discharge pipeline.

Description

Technical Field

[0001] This utility model relates to the field of sludge removal equipment technology, and in particular to a sludge removal device and a sludge removal apparatus. Background Technology

[0002] Because coal mining activities inevitably damage the geological structure, groundwater in aquifers (such as sandstone and limestone) seeps into the mine through fissures and faults, carrying a large amount of coal dust to form mine water. In order to reduce the pollution of mine water and recover coal dust, most coal companies pump the mine water to a pre-sedimentation tank for natural settling. If the pre-sedimentation tank is not treated for sludge removal in time, the coal sludge in the pre-sedimentation tank will be deposited to form a sedimentation layer. The sedimentation layer of coal sludge is relatively thick and has high viscosity. When cleaning the sedimentation layer, it is necessary to use flushing and sludge removal equipment to first flush the coal sludge in the sedimentation layer into coal sludge slurry, and then extract the coal sludge slurry to discharge sludge from the pre-sedimentation tank in order to extract coal dust from the mine water.

[0003] For example, Chinese utility model patent with authorization announcement number "CN217430918U" discloses a sludge removal device for water plants that can achieve sludge flushing. It includes a horizontal flow sedimentation tank, with a sludge removal truck main truss at the upper end of the sedimentation tank; it also includes a sealing trough, a siphon sludge removal main pipe, siphon sludge removal branch pipes, a submersible pump, a flushing main pipe, and flushing branch pipes. The sealing trough is located outside the horizontal flow sedimentation tank; the siphon sludge removal main pipe extends from above the horizontal flow sedimentation tank to its outer side, and the siphon sludge removal branch pipes are connected to the siphon sludge removal main pipe. The discharge end of the siphon sludge removal main pipe is located in the sealing trough, and the end of the siphon sludge removal branch pipes has a sludge suction port; the submersible pump is located inside the horizontal flow sedimentation tank, and the flushing main pipe is connected to the submersible pump for flushing. The branch pipe connects to the flushing main pipe, and the pressure water nozzle at the end of the flushing branch pipe is located on the side and below the sludge suction port. A pressure water regulating valve is installed between the flushing branch pipe and the flushing main pipe. The flushing branch pipe is supplied with water volume and pressure by a submersible pump. The flushing water enters the flushing branch pipe through the flushing main pipe and the pressure water regulating valve. The pressure water nozzle corresponds to the sludge accumulation area at the bottom of the horizontal flow sedimentation tank. The pressure water agitates and mixes the sludge with the water. The mixed wastewater is pumped away and discharged by the siphon sludge discharge branch pipe. However, the sludge discharge equipment of the water plant described in the above technical solution, which can realize sludge flushing, designs the process of flushing the sludge layer and pumping the mixed wastewater as two different independent treatment units, resulting in a large actual footprint for each independent treatment unit and complex piping control valves. Summary of the Invention

[0004] In view of this, it is necessary to provide a sludge removal device that integrates the processes of flushing the sediment layer and extracting coal slurry into one unit, thereby reducing the equipment footprint and simplifying the control valves of the piping system.

[0005] It is also necessary to provide a dredging and sludge removal device.

[0006] On one hand, the present invention provides a sludge removal and discharge device, including a siphon pipe, a clean water pipe, a sludge discharge pipe, a sludge suction pipe, and a first control valve. The siphon pipe is arranged longitudinally, and its inner diameter gradually increases from bottom to top. The bottom end of the siphon pipe is connected to the clean water pipe, and the top end of the siphon pipe is connected to the sludge discharge pipe. The fixed end of the sludge suction pipe is connected to the bottom side wall of the siphon pipe, and the free end of the sludge suction pipe extends into the bottom of the pre-sedimentation tank. The first control valve is installed on the sludge suction pipe to control the opening and closing of the sludge discharge pipe. The clean water pipe introduces clean water into the siphon pipe. During sludge removal, the first control valve is closed, so that the clean water in the siphon pipe is discharged from the free end of the sludge suction pipe to flush the coal sludge in the sedimentation layer into coal sludge slurry. During sludge discharge, the first control valve is opened, and the clean water in the siphon pipe is discharged from the sludge discharge pipe, so that the free end of the sludge suction pipe forms a negative pressure to suck up the coal sludge slurry and discharge it from the sludge discharge pipe.

[0007] Preferably, the vertical cross-section of the siphon pipe is cross-shaped, the two openings of the siphon pipe are matched to form an "eight" shape and bend downwards, there are two sludge suction pipes, the fixed ends of the two sludge suction pipes are respectively connected to the two openings of the siphon pipe, and the free ends of the two sludge suction pipes extend into the bottom of the pre-sedimentation tank.

[0008] Preferably, the sludge removal device further includes a second control valve, which is disposed on the clean water pipeline so as to control the opening and closing of the clean water pipeline.

[0009] Preferably, the clean water pipe, the sludge discharge pipe, and the sludge suction pipe are all connected to the siphon pipe via flanges.

[0010] On the other hand, the present invention provides a sludge removal and discharge device, including the sludge removal and discharge device, a traveling truss, a clear water main pipe, and a submersible pump as described above. The traveling truss is located on the pre-sedimentation tank. The sludge removal and discharge device and the clear water main pipe are both installed on the traveling truss. The siphon pipe is located at the bottom end of the traveling truss. The clear water main pipe is located in the clear water layer of the pre-sedimentation tank. The submersible pump is installed on the clear water main pipe. The clear water pipe is connected to the clear water main pipe so that the submersible pump pumps water from the clear water layer into the siphon pipe through the clear water main pipe and the clear water pipe. The traveling truss drives the sludge removal and discharge device and the clear water main pipe to move laterally on the pre-sedimentation tank.

[0011] Preferably, the sludge removal and discharge device further includes a sludge discharge main pipe, which is installed at the upper end of the traveling truss. There are several sludge removal and discharge devices, which are spaced apart at the bottom end of the traveling truss. The clean water main pipe is connected to each of the clean water pipes so that the submersible pump can pump water into each of the siphon pipes. The sludge discharge main pipe is connected to each of the sludge discharge pipes so that the coal slurry in each of the sludge discharge pipes can be discharged from the pre-sedimentation tank through the sludge discharge main pipe.

[0012] Preferably, both the clean water pipe and the sludge discharge pipe are U-shaped pipes.

[0013] Preferably, both the first control valve and the second control valve are solenoid valves. The dredging and sludge removal device also includes a PLC control cabinet, which is installed at the upper end of the traveling truss. Both the first control valve and the second control valve are electrically connected to the PLC control cabinet so that the PLC control cabinet controls the opening and closing of the first control valve and the second control valve.

[0014] As can be seen from the above technical solution, the sludge removal device provided by this utility model includes a siphon pipe, a clean water pipe, a sludge discharge pipe, a sludge suction pipe, and a first control valve. The siphon pipe is arranged longitudinally, and its inner diameter gradually increases from bottom to top. The bottom end of the siphon pipe is connected to the clean water pipe, and the top end of the siphon pipe is connected to the sludge discharge pipe. The fixed end of the sludge suction pipe is connected to the bottom side wall of the siphon pipe, and the free end of the sludge suction pipe extends into the bottom of the pre-sedimentation tank. The first control valve is installed on the sludge suction pipe to control the sludge discharge. The system controls the flow of clean water from the clean water pipe into the siphon pipe. During sludge removal, the first control valve closes, allowing the clean water in the siphon pipe to drain from the free end of the sludge suction pipe, flushing the coal sludge in the sediment layer into a slurry. During sludge discharge, the first control valve opens, allowing the clean water in the siphon pipe to drain from the sludge discharge pipe, creating a negative pressure at the free end of the sludge suction pipe to draw in the coal sludge slurry, which is then discharged from the sludge discharge pipe. This integrates the processes of flushing the sediment layer and extracting the coal sludge slurry into one unit, thereby reducing the equipment's footprint and simplifying the control valves of the piping system. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an isometric view of the sludge removal and discharge device.

[0017] Figure 2This is an isometric view of the dredging and sludge removal device.

[0018] Figure 3 This is a structural diagram of the pipe connections in the dredging and sludge removal device.

[0019] In the diagram: sludge removal device 10, siphon pipe 110, clean water pipe 120, sludge discharge pipe 130, sludge suction pipe 140, first control valve 150, second control valve 160;

[0020] Dredging and sludge removal device 20, traveling truss 210, clean water main pipe 220, submersible pump 230, sludge removal main pipe 240, PLC control cabinet 250. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Please refer to Figure 1On the one hand, the present invention provides a sludge removal and discharge device 10, including a siphon pipe 110, a clean water pipe 120, a sludge discharge pipe 130, a sludge suction pipe 140, and a first control valve 150. The siphon pipe 110 is arranged longitudinally, and its inner diameter gradually increases from bottom to top. The bottom end of the siphon pipe 110 is connected to the clean water pipe 120, and the top end of the siphon pipe 110 is connected to the sludge discharge pipe 130. The fixed end of the sludge suction pipe 140 is connected to the bottom side wall of the siphon pipe 110, and the free end of the sludge suction pipe 140 extends into the bottom of the pre-sedimentation tank. The first control valve 150 is installed on the sludge suction pipe 140 to enable the first control valve to... The first control valve 150 controls the opening and closing of the sludge discharge pipe 130. The clean water pipe 120 introduces clean water into the siphon pipe 110. During sludge removal, the first control valve 150 closes, allowing the clean water in the siphon pipe 110 to be discharged from the free end of the sludge suction pipe 140, flushing the coal sludge in the sediment layer into a coal sludge slurry. During sludge discharge, the first control valve 150 opens, allowing the clean water in the siphon pipe 110 to be discharged from the sludge discharge pipe 130, creating a negative pressure at the free end of the sludge suction pipe 140 to draw in the coal sludge slurry, which is then discharged from the sludge discharge pipe 130. This integrates the processes of flushing the sediment layer and extracting the coal sludge slurry into one unit, thereby reducing the equipment's footprint and simplifying the control valves of the piping system.

[0024] Furthermore, to increase the flushing area of ​​the sedimentation layer and improve flushing efficiency, the vertical cross-section of the siphon pipe 110 is cross-shaped, and the two openings of the siphon pipe 110 bend downwards in a figure-eight shape. There are two sludge suction pipes 140, with their fixed ends connected to the two openings of the siphon pipe 110 respectively, and their free ends extending into the bottom of the pre-sedimentation tank. This allows the two sludge suction pipes 140 to cooperate in covering a wider area to jointly flush the sedimentation layer around the siphon pipe 110 or to suck up the coal slurry around the siphon pipe 110. The slurry reduces the scouring or suction blind spots. During dredging, the clean water discharged from the free ends of the two suction pipes 140 will converge on the sediment layer to form a turbulent zone. The direction and velocity of the water flow in the turbulent zone fluctuate randomly, thereby generating vortices. This gives the turbulent zone strong shearing and impact forces, which can quickly flush the coal slurry in the sediment layer into coal slurry. During slurry discharge, the two suction flows from the free ends of the two suction pipes 140 will overlap in the central area, generating stronger negative pressure and turbulence. At this time, the turbulence can also break up the clumps of coal slurry and prevent the suction pipes 140 from becoming blocked.

[0025] Furthermore, in order to control the start and stop of the sludge removal device 10, the sludge removal device 10 also includes a second control valve 160. The second control valve 160 is installed on the clean water pipe 120 so that the second control valve 160 controls the opening and closing of the clean water pipe 120. When the second control valve 160 is closed, clean water cannot be introduced into the siphon pipe 110 so that the sludge removal device 10 stops working. When the second control valve 160 is open, clean water can be introduced into the siphon pipe 110 so that the sludge removal device 10 starts working.

[0026] Furthermore, the clean water pipe 120, the sludge discharge pipe 130, and the sludge suction pipe 140 are all connected to the siphon pipe 110 via flanges, so that the siphon pipe 110, the clean water pipe 120, the sludge discharge pipe 130, and the sludge suction pipe 140 can all be replaced, extending the service life of the sludge removal and discharge device 10.

[0027] Please refer to Figure 2 and Figure 3 On the other hand, the present invention provides a sludge removal and discharge device 20, which includes the sludge removal and discharge device 10, a traveling truss 210, a clear water main pipe 220, and a submersible pump 230 as described above. The traveling truss 210 is located on the pre-settling tank. The sludge removal and discharge device 10 and the clear water main pipe 220 are both installed on the traveling truss 210. The siphon pipe 110 is located at the bottom end of the traveling truss 210. The clear water main pipe 220 is located in the clear water layer of the pre-settling tank. The submersible pump 230 is installed on the clear water main pipe 220. The clear water pipe 120 is connected to the clear water main pipe 220 so that the submersible pump 230 pumps the water in the clear water layer into the siphon pipe 110 through the clear water main pipe 220 and the clear water pipe 120. The traveling truss 210 drives the sludge removal and discharge device 10 and the clear water main pipe 220 to move laterally on the pre-settling tank.

[0028] During the sludge removal process in the pre-settling tank, the traveling truss 210 moves the sludge removal device 10 laterally to the pre-cleaning point of the pre-settling tank. The first control valve 150 closes, and the second control valve 160 opens. The submersible pump 230 pumps water from the clear water layer through the clear water main pipe 220 and the clear water pipe 120 into the siphon pipe 110. The water in the siphon pipe 110 is discharged from the free end of the sludge suction pipe 140, so that the water discharged from the free end of the sludge suction pipe 140 washes the coal sludge in the sedimentation layer into coal sludge. The slurry is in operation. Both the first control valve 150 and the second control valve 160 are open. The submersible pump 230 pumps the water from the clear water layer into the siphon pipe 110 through the clear water main pipe 220 and the clear water pipe 120. The clear water in the siphon pipe 110 is discharged from the sludge discharge pipe 130, so that the free end of the sludge suction pipe 140 forms a negative pressure to suck up the coal slurry and discharge it from the sludge discharge pipe 130. This is to deal with the thick and viscous sediment layer of coal slurry, thereby effectively cleaning and discharging the sediment layer in the pre-sedimentation tank.

[0029] Furthermore, the sludge removal and discharge device 20 also includes a sludge discharge main pipe 240, which is installed at the upper end of the traveling truss 210. There are ten sludge removal and discharge devices 10, which are spaced apart at the bottom end of the traveling truss 210. The clean water main pipe 220 is connected to each clean water pipe 120 so that the submersible pump 230 pumps water into each siphon pipe 110. The sludge discharge main pipe 240 is connected to each sludge discharge pipe 130 so that the coal slurry in each sludge discharge pipe 130 is discharged from the pre-sedimentation tank through the sludge discharge main pipe 240.

[0030] Furthermore, both the clean water pipe 120 and the sludge discharge pipe 130 are U-shaped pipes. The advantage of this design is that, on the one hand, the smooth bending structure of the clean water pipe 120 allows the water flow to gradually change direction, reducing flow separation and eddies, thereby reducing the kinetic energy loss of the water flow and ensuring that the water pressure flowing into the siphon pipe 110 is sufficient to flush the coal sludge in the sediment layer into coal sludge slurry. On the other hand, the smooth bending structure of the sludge discharge pipe 130 allows the water flow to gradually change direction, reducing the impact force of coal sludge slurry particles on the pipe wall and extending the service life of the sludge discharge pipe 130.

[0031] Furthermore, in order to automatically control the opening and closing of the first control valve 150 and the second control valve 160, both the first control valve 150 and the second control valve 160 can be solenoid valves. The dredging and sludge discharge device 20 also includes a PLC control cabinet 250, which is installed on the upper end of the traveling truss 210. The first control valve 150 and the second control valve 160 are electrically connected to the PLC control cabinet 250. The PLC control cabinet 250 integrates a PLC control system, which controls the opening and closing of the first control valve 150 and the second control valve 160 by pre-setting program code in the PLC control system.

[0032] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A sludge removal and discharge device, characterized in that: The system includes a siphon pipe, a clean water pipe, a sludge discharge pipe, a sludge suction pipe, and a first control valve. The siphon pipe is arranged longitudinally, and its inner diameter gradually increases from bottom to top. The bottom end of the siphon pipe is connected to the clean water pipe, and the top end of the siphon pipe is connected to the sludge discharge pipe. The fixed end of the sludge suction pipe is connected to the bottom side wall of the siphon pipe, and the free end of the sludge suction pipe extends into the bottom of the pre-sedimentation tank. The first control valve is installed on the sludge suction pipe to control the opening and closing of the sludge discharge pipe. Clean water is introduced into the siphon pipe through the clean water pipe. During sludge removal, the first control valve closes, allowing the clean water in the siphon pipe to discharge from the free end of the sludge suction pipe, flushing the coal sludge in the sedimentation layer into a coal sludge slurry. During sludge discharge, the first control valve opens, allowing the clean water in the siphon pipe to discharge from the sludge discharge pipe, creating a negative pressure at the free end of the sludge suction pipe to draw in the coal sludge slurry and discharge it from the sludge discharge pipe.

2. The sludge removal and discharge device according to claim 1, characterized in that: The vertical cross-section of the siphon pipe is "+" shaped, and the two openings of the siphon pipe are matched to form an "eight" shape and bend downwards. There are two sludge suction pipes, and the fixed ends of the two sludge suction pipes are respectively connected to the two openings of the siphon pipe, and the free ends of the two sludge suction pipes extend into the bottom of the pre-sedimentation tank.

3. The sludge removal and discharge device according to claim 1, characterized in that: The sludge removal device also includes a second control valve, which is installed on the clean water pipeline to control the opening and closing of the clean water pipeline.

4. The sludge removal and discharge device according to claim 1, characterized in that: The clean water pipe, the sludge discharge pipe, and the sludge suction pipe are all connected to the siphon pipe via flanges.

5. A dredging and sludge removal device, characterized in that: The device includes the sludge removal device, the traveling truss, the clear water main pipe, and the submersible pump as described in any one of claims 1 to 4. The traveling truss is located on the pre-sedimentation tank. The sludge removal device and the clear water main pipe are both installed on the traveling truss. The siphon pipe is located at the bottom end of the traveling truss. The clear water main pipe is located in the clear water layer of the pre-sedimentation tank. The submersible pump is installed on the clear water main pipe. The clear water pipe is connected to the clear water main pipe so that the submersible pump pumps water from the clear water layer into the siphon pipe through the clear water main pipe and the clear water pipe. The traveling truss drives the sludge removal device and the clear water main pipe to move laterally on the pre-sedimentation tank.

6. The dredging and sludge removal device according to claim 5, characterized in that: The sludge removal and discharge device also includes a sludge discharge main pipe, which is installed at the upper end of the traveling truss. There are several sludge removal and discharge devices, which are spaced apart at the bottom end of the traveling truss. The clean water main pipe is connected to each of the clean water pipes so that the submersible pump can pump water into each of the siphon pipes. The sludge discharge main pipe is connected to each of the sludge discharge pipes so that the coal slurry in each of the sludge discharge pipes can be discharged from the pre-sedimentation tank through the sludge discharge main pipe.

7. The dredging and sludge removal device according to claim 6, characterized in that: Both the clean water pipe and the sludge discharge pipe are U-shaped pipes.

8. The dredging and sludge removal device according to claim 5, characterized in that: Both the first control valve and the second control valve are solenoid valves. The dredging and sludge removal device also includes a PLC control cabinet, which is installed at the upper end of the traveling truss. Both the first control valve and the second control valve are electrically connected to the PLC control cabinet so that the PLC control cabinet can control the opening and closing of the first control valve and the second control valve.

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