Sludge discharge device for pre-sedimentation tank with scouring function
By introducing sludge removal components with flushing function and siphon pipes into the pre-sedimentation tank, the problem of difficult extraction of coal sludge from the sedimentation layer was solved, achieving efficient coal sludge loosening and sludge removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA GUANGQUAN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-19
Smart Images
Figure CN224370758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sludge discharge equipment technology, and in particular to a sludge discharge device for a pre-sedimentation tank with a flushing function. 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. After settling, a sludge removal device is used to remove sludge from the mine water in order to extract the coal dust.
[0003] For example, Chinese utility model patent with authorization announcement number "CN219792532U" discloses a sludge removal device for mine water treatment, including a working truss spanning a mine water pre-settling and regulating tank, a first pump body, and a second pump body installed on the working truss; the first pump body is installed in the clear water layer of the mine water pre-settling and regulating tank, and its inlet is located in the clear water layer of the mine water pre-settling and regulating tank; the inlet of the second pump body is divided into two paths, one path is connected to the outlet of the first pump body through an inlet pipe assembly, and the other path extends to the bottom of the mine water pre-settling and regulating tank through a sludge suction pipe, and the outlet of the second pump body... The inlet is connected to the sludge discharge ditch via a sludge discharge pipe assembly. After water is introduced into the second pump body, a negative pressure is formed inside it, causing the coal sludge in the mine water pre-settling and regulating tank to be sucked into the second pump body through another inlet. Then, the coal sludge in the tank is discharged away through the sludge discharge pipe assembly. However, the second pump body described in the above technical solution needs to rely on the negative pressure formed inside it to adsorb the coal sludge. If the pre-settling tank is not treated for sludge discharge in time, the coal sludge in the pre-settling tank will be deposited to form a sediment layer. The sediment layer of coal sludge is relatively thick and has high viscosity. If the negative pressure inside the second pump body is small, it cannot effectively absorb the sediment layer of coal sludge and discharge it away. Summary of the Invention
[0004] In view of this, it is necessary to provide a pre-sedimentation tank sludge discharge device with a flushing function, so that the coal sludge in the sedimentation layer can be flushed into coal sludge slurry, thereby facilitating the sludge discharge component to absorb the coal sludge slurry for sludge discharge.
[0005] This utility model provides a sludge removal device for a pre-sedimentation tank with flushing function, including a traveling truss, a guide rail, a sludge removal component, and a sludge removal component. The traveling truss is horizontally arranged above the pre-sedimentation tank, the guide rail is installed at the upper end of the traveling truss, the sludge removal component is located on the guide rail, and the sludge removal component is installed on the traveling truss. The traveling truss drives the sludge removal component and the sludge removal component to move laterally on the pre-sedimentation tank, and the sludge removal component sucks up coal slurry for sludge removal.
[0006] The dredging assembly includes a drive unit and a flushing unit. The drive unit is located on the guide rail, and the flushing unit is located on the drive unit. The flushing unit is connected to the drive unit so that the drive unit drives the flushing unit to move along the length direction of the traveling truss on the guide rail. At the same time, the flushing unit flushes the coal slime in the sedimentation tank into coal slime slurry to loosen the coal slime.
[0007] Preferably, the flushing unit includes a lifting component, a first submersible pump, and a flushing pipe. The fixed end of the lifting component is connected to the driving unit, and the free end of the lifting component extends into the pre-sedimentation tank. The first submersible pump is located on the lifting component and in the clear water layer of the pre-sedimentation tank. One end of the flushing pipe is connected to the outlet of the first submersible pump, and the other end of the flushing pipe extends into the bottom of the pre-sedimentation tank. The first submersible pump is connected to the lifting component. The first submersible pump pumps water from the clear water layer into the flushing pipe so that the clear water is discharged from the other end of the flushing pipe to flush the coal slime in the sedimentation layer of the pre-sedimentation tank into coal slime slurry. The lifting component drives the first submersible pump to rise or fall so that the flushing pipe can adapt to sedimentation layers of different thicknesses.
[0008] Preferably, the guide rail has an "I"-shaped vertical cross-section. The driving unit includes a support box, a first rotating shaft, rotating wheels, and a first drive motor. A first receiving groove is formed at the upper end of the support box, and the width of the first receiving groove is greater than the width of the guide rail. There are four first rotating shafts, with two first rotating shafts forming a group. The number of rotating wheels is the same as the number of first rotating shafts. Both groups of first rotating shafts are located within the first receiving groove, and the two groups of first rotating shafts are located on opposite side walls of the first receiving groove. One end of the first rotating shaft is rotatably connected to the support box, and the other end of the first rotating shaft is connected to the rotating wheel. The first drive motor is fixedly connected to the shaft of the rotating wheel. The first drive motor is located on the support box, and the output end of the first drive motor passes through the support box and is fixedly connected to one of the first rotating shafts. The lifting component is located at the bottom of the support box. The bottom of the guide rail passes through the bottom surface of the first receiving groove and between the two sets of rotating wheels. The middle part of the guide rail is located between the two sets of rotating wheels. The first drive motor and the support box are detachably connected by bolts. The lifting component is connected to the support box. The first drive motor drives one of the first rotating shafts to rotate, so that the four rotating wheels move on the guide rail.
[0009] Preferably, the bottom of the support box has a second receiving groove, and the side end of the first submersible pump has a guide hole. The lifting component includes a second rotating shaft, a second drive motor, a lifting wire, and a guide rod. The guide rod is adapted to the guide hole of the first submersible pump. The second rotating shaft is located in the second receiving groove, and its two ends are rotatably connected to the opposite side walls of the second receiving groove. The second drive motor is located on the support box, and its output end passes through the support box and is fixedly connected to the axis of the second rotating shaft. One end of the lifting wire is fixedly connected to the second rotating shaft, and the other end of the lifting wire is connected to the top of the first submersible pump. The guide rod is located on one side of the second receiving groove, and its fixed end is detachably connected to the bottom of the support box by bolts. The free end of the guide rod extends into the pre-sedimentation tank through the guide hole of the first submersible pump. The second drive motor drives the second rotating shaft to rotate, and the lifting wire loops around the second rotating shaft to tighten or loosen, so that the lifting wire pulls the first submersible pump up or down on the guide rod.
[0010] Preferably, the sludge discharge assembly includes a second submersible pump, a clear water main pipe, a U-shaped guide pipe, a siphon pipe, sludge discharge branch pipes, and a sludge discharge main pipe. There are several siphon pipes, and the number of U-shaped guide pipes and sludge discharge branch pipes is the same as the number of siphon pipes. The clear water main pipe is installed in the clear water layer of the pre-sedimentation tank. The second submersible pump is mounted on the clear water main pipe. Several siphon pipes are spaced apart at the bottom of the traveling truss. One end of each of the several U-shaped guide pipes is connected to the clear water main pipe, and the other end of each U-shaped guide pipe is connected to several... The bottom inlet of each of the siphon pipes is connected, and one end of each of the sludge discharge branch pipes is connected to the top sludge discharge port of each of the siphon pipes. The other end of each of the sludge discharge branch pipes is connected to the main sludge discharge pipe. The sludge suction port of the siphon pipe extends into the bottom of the pre-sedimentation tank. The second submersible pump pumps water from the clear water layer into the siphon pipe through the U-shaped guide pipe. The water in the siphon pipe is discharged from the sludge discharge port to create a negative pressure at the sludge suction port, thereby drawing the coal sludge into the siphon pipe and discharging it from the sludge discharge port with the water flow.
[0011] Preferably, the siphon pipe includes a first pipe and a second pipe. The first pipe is arranged longitudinally, and the inner diameter of the first pipe gradually increases from bottom to top. The bottom end of the first pipe is the water inlet, and the top end of the first pipe is the sludge discharge outlet. The fixed end of the second pipe is connected to the bottom side wall of the first pipe, and the free end of the second pipe extends into the bottom of the pre-sedimentation tank so that the free end of the second pipe serves as the sludge suction outlet.
[0012] Preferably, the vertical cross-section of the first pipe is cross-shaped, and the two openings of the first pipe are fitted together to bend downward in a figure-eight shape. There are two second pipes, and the fixed ends of the two second pipes are respectively connected to the two openings of the first pipe, and the free ends of the two second pipes extend into the bottom of the pre-sedimentation tank.
[0013] As can be seen from the above technical solution, the pre-settling tank sludge removal device with flushing function provided by this utility model includes a traveling truss, a guide rail, a sludge removal component, and a sludge removal component. The traveling truss is horizontally arranged above the pre-settling tank, the guide rail is installed at the upper end of the traveling truss, the sludge removal component is located on the guide rail, and the sludge removal component is installed on the traveling truss. The sludge removal component includes a driving part and a flushing part. The driving part is located on the guide rail, and the flushing part is located on the driving part. The flushing part is connected to the driving part. When cleaning the pre-settling tank, the traveling truss drives the sludge removal component and the sludge removal component to move laterally on the pre-settling tank to the pre-cleaning point of the pre-settling tank. The driving part drives the flushing part to move along the length direction of the traveling truss on the guide rail. At the same time, the flushing part flushes the coal sludge in the sedimentation layer of the pre-settling tank into coal slurry to loosen the coal sludge, thereby facilitating the sludge removal component to absorb the coal slurry for sludge removal. Attached Figure Description
[0014] 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.
[0015] Figure 1 This is a schematic diagram of a sludge removal device for a pre-sedimentation tank with flushing function.
[0016] Figure 2 This is an isometric view of the dredging component.
[0017] Figure 3 Left view of the dredging component.
[0018] Figure 4 This is an isometric view of the scouring section.
[0019] Figure 5 This is a schematic diagram of the sludge removal assembly.
[0020] Figure 6 for Figure 5 Enlarged view of the siphon pipe in section A.
[0021] The diagram shows: a pre-sedimentation tank sludge removal device 10 with flushing function, a traveling truss 110, a guide rail 120, a sludge removal component 130, a drive unit 131, a support box 1311, a first receiving tank 13111, a second receiving tank 13112, a first rotating shaft 1312, a rotating wheel 1313, a first drive motor 1314, a flushing unit 132, a lifting component 1321, a second rotating shaft 13211, a second drive motor 13212, a lifting steel wire 13213, a guide rod 13214, a first submersible pump 1322, a flushing pipe 1323, a sludge removal component 140, a second submersible pump 141, a clear water main pipe 142, a U-shaped guide pipe 143, a siphon pipe 144, a water inlet 1441, a sludge discharge port 1442, a sludge suction port 1443, a first pipe 1444, a second pipe 1445, a sludge discharge branch pipe 145, and a sludge discharge main pipe 146. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] 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.
[0024] Please refer to Figures 1 to 6 The present invention provides a sludge discharge device 10 for a pre-sedimentation tank with flushing function, including a traveling truss 110, a guide rail 120, a sludge removal component 130, and a sludge discharge component 140. The traveling truss 110 is arranged horizontally above the pre-sedimentation tank. The guide rail 120 is installed at the upper end of the traveling truss 110. The sludge removal component 130 is located on the guide rail 120. The sludge discharge component 140 is installed on the traveling truss 110. The traveling truss 110 drives the sludge removal component 130 and the sludge discharge component 140 to move laterally on the pre-sedimentation tank. The sludge discharge component 140 sucks up coal slurry for sludge discharge.
[0025] The dredging component 130 includes a drive unit 131 and a flushing unit 132. The drive unit 131 is located on the guide rail 120, and the flushing unit 132 is located on the drive unit 131. The flushing unit 132 is connected to the drive unit 131 so that the drive unit 131 drives the flushing unit 132 to move along the length direction of the traveling truss 110 on the guide rail 120. At the same time, the flushing unit 132 flushes the coal slime in the sedimentation tank into coal slime slurry to loosen the coal slime.
[0026] When cleaning the pre-settling tank, the traveling truss 110 drives the sludge removal component 130 and the sludge discharge component 140 to move laterally on the pre-settling tank to the pre-cleaning point. The drive unit 131 drives the flushing unit 132 to move along the length of the traveling truss 110 on the guide rail 120. At the same time, the flushing unit 132 flushes the coal sludge in the sedimentation layer of the pre-settling tank into coal sludge slurry to loosen the coal sludge, which in turn facilitates the sludge discharge component 140 to absorb the coal sludge slurry for sludge discharge.
[0027] Furthermore, the flushing unit 132 includes a lifting component 1321, a first submersible pump 1322, and a flushing pipe 1323. The fixed end of the lifting component 1321 is connected to the drive unit 131, and the free end of the lifting component 1321 extends into the pre-settling tank. The first submersible pump 1322 is located on the lifting component 1321 and is located in the clear water layer of the pre-settling tank. One end of the flushing pipe 1323 is connected to the outlet of the first submersible pump 1322, and the other end of the flushing pipe 1323 extends into the bottom of the pre-settling tank. The first submersible pump 1322 and the lifting component 1321... The first submersible pump 1322 pumps water from the clear water layer into the flushing pipe 1323, so that the clear water is discharged from the other end of the flushing pipe 1323 to flush the coal sludge in the pre-sedimentation tank into coal sludge slurry. The lifting component 1321 drives the first submersible pump 1322 to rise or fall, so that the flushing pipe 1323 can adapt to sediment layers of different thicknesses, so that the distance between the bottom end of the flushing pipe 1323 and the surface of the sediment layer is a preset distance. The preset distance can be determined by experiments to ensure that the flushing pipe 1323 can completely flush the sediment layer into coal sludge slurry at the preset distance.
[0028] Furthermore, the vertical cross-section of the guide rail 120 is "I" shaped. The drive unit 131 includes a support box 1311, a first rotating shaft 1312, rotating wheels 1313, and a first drive motor 1314. A first receiving groove 13111 is formed at the upper end of the support box 1311. The width of the first receiving groove 13111 is greater than the width of the guide rail 120. There are four first rotating shafts 1312, with two shafts forming a group. The number of rotating wheels 1313 is the same as the number of first rotating shafts 1312. Both groups of first rotating shafts 1312 are located within the first receiving groove 13111, and are located on opposite side walls of the first receiving groove 13111. One end of each first rotating shaft 1312 is rotatably connected to the support box 1311. The other end is fixedly connected to the axis of the rotating wheel 1313. The first drive motor 1314 is located on the support box 1311, and the output end of the first drive motor 1314 passes through the support box 1311 and is fixedly connected to one of the first rotating shafts 1312. The lifting component 1321 is located at the bottom of the support box 1311. The bottom of the guide rail 120 passes through the bottom surface of the first receiving groove 13111 and between the two sets of rotating wheels 1313, and the middle part of the guide rail 120 is located between the two sets of rotating wheels 1313. The first drive motor 1314 is detachably connected to the support box 1311 by bolts. The lifting component 1321 is connected to the support box 1311. The first drive motor 1314 drives one of the first rotating shafts 1312 to rotate, so that the four rotating wheels 1313 move on the guide rail 120.
[0029] Furthermore, a second receiving groove 13112 is provided at the bottom of the support box 1311, and a guide hole is provided at the side end of the first submersible pump 1322. The lifting component 1321 includes a second rotating shaft 13211, a second drive motor 13212, a lifting steel wire 13213, and a guide rod 13214. The guide rod 13214 is adapted to the guide hole of the first submersible pump 1322. The second rotating shaft 13211 is located in the second receiving groove 13112, and the two ends of the second rotating shaft 13211 are... The second drive motor 13212 is rotatably connected to the opposite side wall of the second receiving groove 13112. The output end of the second drive motor 13212 passes through the support box 1311 and is fixedly connected to the axis of the second rotating shaft 13211. One end of the lifting steel wire 13213 is fixedly connected to the second rotating shaft 13211, and the other end of the lifting steel wire 13213 is connected to the top of the first submersible pump 1322. The guide rod 13214 is located in the second receiving groove 13112. On one side of 3112, the fixed end of the guide rod 13214 is detachably connected to the bottom of the support box 1311 by bolts. The free end of the guide rod 13214 extends into the pre-sedimentation tank through the guide hole of the first submersible pump 1322. The second drive motor 13212 drives the second rotating shaft 13211 to rotate clockwise. The lifting steel wire 13213 is wound and tightened around the second rotating shaft 13211, so that the lifting steel wire 13213 pulls the first submersible pump 1322 on the guide rod 13214. The second drive motor 13212 drives the second rotating shaft 13211 to reverse, and the lifting steel wire 13213 loosens by looping around the second rotating shaft 13211, so that the lifting steel wire 13213 pulls the first submersible pump 1322 down on the guide rod 13214. In order to prevent the first submersible pump 1322 from rising along the guide rod 13214 under the action of downward force, the operator can add appropriate counterweight to the first submersible pump 1322.
[0030] Furthermore, the sludge discharge assembly 140 includes a second submersible pump 141, a clear water main pipe 142, a U-shaped guide pipe 143, a siphon pipe 144, sludge discharge branch pipes 145, and a sludge discharge main pipe 146. There are several siphon pipes 144, and the number of U-shaped guide pipes 143 and sludge discharge branch pipes 145 is the same as the number of siphon pipes 144. The clear water main pipe 142 is installed in the clear water layer of the pre-sedimentation tank. The second submersible pump 141 is installed on the clear water main pipe 142. Several siphon pipes 144 are spaced apart at the bottom of the traveling truss 110. One end of several U-shaped guide pipes 143 is connected to the clear water main pipe 142, and the other end of several U-shaped guide pipes 143 is connected to the bottom inlet 1441 of several siphon pipes 144 respectively. One end of each sludge discharge branch pipe 145 is connected to the top sludge discharge port 1442 of several siphon pipes 144, and the other end of each sludge discharge branch pipe 145 is connected to the sludge discharge main pipe 146. The sludge suction port 1443 of the siphon pipe 144 extends into the bottom of the pre-sedimentation tank. The second submersible pump 141 pumps water from the clear water layer into the siphon pipe 144 through the U-shaped guide pipe 143. The water in the siphon pipe 144 is discharged from the sludge discharge port 1442, so that a negative pressure is formed at the sludge suction port 1443, thereby sucking the coal sludge into the siphon pipe 144, and with the water flow, it enters the sludge discharge branch pipe 145 from the sludge discharge port 1442. The coal sludge in the sludge discharge branch pipe 145 enters the sludge discharge main pipe 146 and is discharged into the sludge discharge trough from the sludge discharge main pipe 146.
[0031] The U-shaped guide pipe 143 connects the main water pipe 142 to the bottom inlet 1441 of the siphon pipe 144. The advantage of this design is that the smooth bending structure of the U-shaped guide pipe 143 can gradually change the direction of the water flow, reduce 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 144 is sufficient to flush the coal sludge in the sediment layer into coal sludge slurry. At the same time, the sludge discharge branch pipe 145 can also be a "U" shaped pipe, so that the smooth bending structure of the sludge discharge branch pipe 145 can gradually change the direction of the water flow, reduce the impact force of coal sludge slurry particles on the pipe wall, and extend the service life of the sludge discharge branch pipe 145.
[0032] In a preferred embodiment, there are ten siphon pipes 144, and the number of U-shaped guide pipes 143 and sludge discharge branch pipes 145 are the same as the number of siphon pipes 144. The ten siphon pipes 144 are equidistantly distributed at the bottom of the traveling truss 110. Correspondingly, the ten U-shaped guide pipes 143 are respectively connected to the clean water main pipe 142 and the water inlet 1441 of the ten siphon pipes 144 through flanges, and the ten sludge discharge branch pipes 145 are respectively connected to the sludge discharge main pipe 146 and the sludge discharge outlet 1442 of the ten siphon pipes 144 through flanges.
[0033] Furthermore, the siphon pipe 144 includes a first pipe 1444 and a second pipe 1445. The first pipe 1444 is arranged longitudinally, and the inner diameter of the first pipe 1444 gradually increases from bottom to top. The bottom end of the first pipe 1444 is the water inlet 1441, and the top end of the first pipe 1444 is the sludge discharge port 1442. The fixed end of the second pipe 1445 is connected to the bottom side wall of the first pipe 1444, and the free end of the second pipe 1445 extends into the bottom of the pre-sedimentation tank so that the free end of the second pipe 1445 serves as the sludge suction port 1443.
[0034] Furthermore, the vertical cross-section of the first pipe 1444 is cross-shaped, and the two openings of the first pipe 1444 are matched to form a figure-eight shape that bends downward. There are two second pipes 1445, and the fixed ends of the two second pipes 1445 are respectively connected to the two openings of the first pipe 1444. The free ends of the two second pipes 1445 extend into the bottom of the pre-sedimentation tank, so that the two second pipes 1445 cooperate to cover a wider area and jointly absorb the coal slurry around the first pipe 1444, reducing the blind spot of absorption. When absorbing the coal slurry, the two suction flows from the free ends of the two second pipes 1445 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 port 1443 from being blocked.
[0035] 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 device for a pre-sedimentation tank with flushing function, characterized in that: The system includes a traveling truss, guide rails, a dredging assembly, and a sludge discharge assembly. The traveling truss is positioned across the top of the pre-settling tank. The guide rails are installed at the upper end of the traveling truss. The dredging assembly is located on the guide rails. The sludge discharge assembly is installed on the traveling truss. The traveling truss drives the dredging assembly and the sludge discharge assembly to move laterally on the pre-settling tank. The sludge discharge assembly sucks up coal slurry and discharges it. The dredging assembly includes a drive unit and a flushing unit. The drive unit is located on the guide rail, and the flushing unit is located on the drive unit. The flushing unit is connected to the drive unit so that the drive unit drives the flushing unit to move along the length direction of the traveling truss on the guide rail. At the same time, the flushing unit flushes the coal slime in the sedimentation tank into coal slime slurry to loosen the coal slime.
2. The sludge removal device for a pre-sedimentation tank with flushing function according to claim 1, characterized in that: The flushing unit includes a lifting component, a first submersible pump, and a flushing pipe. The fixed end of the lifting component is connected to the driving unit, and the free end of the lifting component extends into the pre-sedimentation tank. The first submersible pump is located on the lifting component and in the clear water layer of the pre-sedimentation tank. One end of the flushing pipe is connected to the outlet of the first submersible pump, and the other end of the flushing pipe extends into the bottom of the pre-sedimentation tank. The first submersible pump is connected to the lifting component. The first submersible pump pumps water from the clear water layer into the flushing pipe so that the clear water is discharged from the other end of the flushing pipe to flush the coal slime in the sedimentation layer of the pre-sedimentation tank into coal slime slurry. The lifting component drives the first submersible pump to rise or fall, so that the flushing pipe can adapt to sedimentation layers of different thicknesses.
3. The sludge removal device for a pre-sedimentation tank with flushing function according to claim 2, characterized in that: The guide rail has an "I"-shaped vertical cross-section. The driving unit includes a support box, a first rotating shaft, rotating wheels, and a first drive motor. A first receiving groove is formed at the upper end of the support box, and the width of the first receiving groove is greater than the width of the guide rail. There are four first rotating shafts, arranged in groups of two. The number of rotating wheels is the same as the number of first rotating shafts. Both groups of first rotating shafts are located within the first receiving groove, and are situated on opposite sidewalls of the first receiving groove. One end of each first rotating shaft is rotatably connected to the support box, and the other end is connected to the rotating wheel. The shaft is fixedly connected at the center. The first drive motor is located on the support box, and the output end of the first drive motor passes through the support box and is fixedly connected to one of the first rotating shafts. The lifting component is located at the bottom of the support box. The bottom of the guide rail passes through the bottom surface of the first receiving groove and between the two sets of rotating wheels, and the middle part of the guide rail is located between the two sets of rotating wheels. The first drive motor and the support box are detachably connected by bolts. The lifting component is connected to the support box. The first drive motor drives one of the first rotating shafts to rotate, so that the four rotating wheels move on the guide rail.
4. The sludge removal device for a pre-sedimentation tank with flushing function according to claim 3, characterized in that: The support box has a second receiving groove at its bottom, and the first submersible pump has a guide hole at its side. The lifting component includes a second rotating shaft, a second drive motor, a lifting wire, and a guide rod. The guide rod is adapted to the guide hole of the first submersible pump. The second rotating shaft is located in the second receiving groove, and its two ends are rotatably connected to the opposite sidewalls of the second receiving groove. The second drive motor is located on the support box, and its output end passes through the support box and is fixedly connected to the axis of the second rotating shaft. One end of the lifting wire is fixedly connected to the second rotating shaft, and the other end of the lifting wire is connected to the top of the first submersible pump. The guide rod is located on one side of the second receiving groove, and its fixed end is detachably connected to the bottom of the support box by bolts. The free end of the guide rod extends into the pre-sedimentation tank through the guide hole of the first submersible pump. The second drive motor drives the second rotating shaft to rotate, and the lifting wire loops around the second rotating shaft to tighten or loosen, so that the lifting wire pulls the first submersible pump up or down along the guide rod.
5. The sludge removal device for a pre-sedimentation tank with flushing function according to claim 1, characterized in that: The sludge removal assembly includes a second submersible pump, a main clear water pipe, a U-shaped guide pipe, a siphon pipe, sludge removal branch pipes, and a sludge removal main pipe. There are several siphon pipes, and the number of U-shaped guide pipes and sludge removal branch pipes is the same as the number of siphon pipes. The main clear water pipe is installed in the clear water layer of the pre-sedimentation tank. The second submersible pump is mounted on the main clear water pipe. Several siphon pipes are spaced apart at the bottom of the traveling truss. One end of each of the several U-shaped guide pipes is connected to the main clear water pipe, and the other end of each U-shaped guide pipe is connected to one of the several siphon pipes. The bottom inlet of the siphon pipe is connected, and one end of each of the several sludge discharge branch pipes is connected to the top sludge discharge port of the several siphon pipes respectively. The other end of each of the several sludge discharge branch pipes is connected to the sludge discharge main pipe. The sludge suction port of the siphon pipe extends into the bottom of the pre-sedimentation tank. The second submersible pump pumps water from the clear water layer into the siphon pipe through the U-shaped guide pipe. The water in the siphon pipe is discharged from the sludge discharge port to create a negative pressure at the sludge suction port, thereby drawing the coal sludge into the siphon pipe and discharging it from the sludge discharge port with the water flow.
6. The sludge removal device for a pre-sedimentation tank with flushing function according to claim 5, characterized in that: The siphon pipe includes a first pipe and a second pipe. The first pipe is arranged longitudinally, and its inner diameter gradually increases from bottom to top. The bottom end of the first pipe is the water inlet, and the top end of the first pipe is the sludge discharge outlet. The fixed end of the second pipe is connected to the bottom side wall of the first pipe, and the free end of the second pipe extends into the bottom of the pre-sedimentation tank so that the free end of the second pipe serves as the sludge suction outlet.
7. The sludge removal device for a pre-sedimentation tank with flushing function according to claim 6, characterized in that: The first pipe has a cross-shaped vertical section, and the two openings of the first pipe are joined together to bend downwards in a figure-eight shape. There are two second pipes, and the fixed ends of the two second pipes are respectively connected to the two openings of the first pipe, and the free ends of the two second pipes extend into the bottom of the pre-sedimentation tank.