Desilting device for sedimentation tank

By using a walking frame-driven sludge removal device and a V-shaped scraper design, combined with the siphon principle, the problem of difficult sludge removal at the bottom of the sedimentation tank is solved, achieving a highly efficient sludge cleaning effect.

CN223490474UActive Publication Date: 2025-10-31NANJING TAP WATER GENERAL CO
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Patent Information

Application Number
CN202422910793.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-31
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing sedimentation tank sludge removal devices are ineffective at removing firmly adsorbed sludge from the bottom of the sedimentation tank, thus affecting the sludge removal effect.

Method used

The sludge removal device, driven by a walking frame, combined with a V-shaped scraper and a suction pipe, uses the siphon principle and the design of the scraper to automatically remove and scrape up the sludge at the bottom of the pool, thus improving the removal efficiency.

Benefits of technology

It improves the efficiency of removing sludge from the bottom of the sedimentation tank, avoids sludge accumulation, reduces energy consumption, and enhances the cleaning capacity of the sludge removal device.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a sedimentation tank desilting device, and relates to the field of desilting equipment, the sedimentation tank desilting device comprises a walking frame, the walking frame is provided with a driving mechanism, the driving mechanism is used for driving the walking frame to move, the walking frame is provided with a desilting mechanism, and the desilting mechanism is used for driving the driving mechanism to move. The mud removal mechanism comprises a communicating pipe, a mud suction pipe and a mud removal pump, the communicating pipe is installed on the walking frame, one end of the mud suction pipe is connected with the communicating pipe, the other end of the mud suction pipe extends to the bottom of the sedimentation tank, the mud removal pump is installed on the communicating pipe, a mud outlet pipe is arranged on the communicating pipe, and the mud outlet pipe is connected with the mud suction pipe. The walking frame is provided with a silt removing mechanism used for scraping up silt deposited at the bottom of the pond bottom. The sedimentation tank has the effect of improving the desilting effect of the sedimentation tank.
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Description

Technical Field

[0001] This application relates to the field of sludge removal equipment, and in particular to a sludge removal device for sedimentation tanks. Background Technology

[0002] Sludge removal devices in sedimentation tanks are crucial equipment in wastewater treatment systems for removing sludge from sedimentation tanks. These devices utilize different principles and technologies to effectively remove sludge from sedimentation tanks, ensuring further purification and treatment efficiency of the water.

[0003] Existing sedimentation tank sludge removal devices typically include a sludge discharge pipe and a sludge suction pipe. By setting up sludge tanks on both sides of the sedimentation tank, one end of the sludge discharge pipe is installed in the sludge tank, and the inlet end of the sludge suction pipe is installed at the bottom of the sedimentation tank. The sludge at the bottom of the sedimentation tank is sucked into the sludge discharge pipe through the sludge suction pipe using the siphon principle, and then discharged into the sludge tank. However, because some sludge is firmly adsorbed at the bottom of the tank, the suction force of the sludge suction pipe is limited, making it difficult to remove this part of the sludge, thus affecting the sludge removal effect of the sedimentation tank. Utility Model Content

[0004] In order to improve the sludge removal effect in sedimentation tanks, this application provides a sedimentation tank sludge removal device.

[0005] The sludge removal device for sedimentation tanks provided in this application adopts the following technical solution:

[0006] A sludge removal device for a sedimentation tank includes a walking frame with a drive mechanism for moving the frame. A sludge removal mechanism is also mounted on the walking frame, comprising a connecting pipe, a suction pipe, and a sludge pump. The connecting pipe is mounted on the walking frame, one end of the suction pipe is connected to the connecting pipe, and the other end extends to the bottom of the sedimentation tank. The sludge pump is mounted on the connecting pipe, which has a sludge outlet pipe. The walking frame is equipped with a sludge removal mechanism for scraping up sludge settled at the bottom of the tank.

[0007] By adopting the above technical solution, the driving mechanism moves the walking frame and starts the sludge pump. The sludge and sand at the bottom of the pool are sucked into the connecting pipe through the suction pipe, and then discharged from the connecting pipe through the discharge pipe. The sludge pump is then turned off, and the sludge and sand are automatically removed by the siphon principle. During the movement of the walking frame, the sludge and sand at the bottom of the pool are scraped up by the sludge removal mechanism, thereby improving the suction effect of the suction pipe on the bottom of the pool.

[0008] In one specific implementation, the sludge scraping mechanism includes a sludge scraper frame and a sludge scraper blade, the sludge scraper frame being mounted on the traveling frame and the sludge scraper blade being mounted on the sludge scraper frame.

[0009] By adopting the above technical solution, the sludge scraper is installed on the traveling frame, and the sludge scraper is installed on the sludge scraper. The sludge scraper moves with the traveling frame and drives the sludge scraper to move. The sludge scraper is set at the bottom of the sedimentation tank, thereby scraping up the sludge that has settled and been adsorbed at the bottom of the tank, thus facilitating the removal of sludge by the suction pipe.

[0010] In one specific implementation scheme, the scraper blade is configured as a V-shaped blade, with the height of the scraper blade gradually decreasing from both ends to the middle. One end of the suction pipe inlet is located at the middle part of the scraper blade.

[0011] By adopting the above technical solution, the scraper is set as a V-shaped plate, with the height of the scraper gradually decreasing from both ends to the middle. The inlet of the suction pipe is located in the middle of the scraper, which can scrape up the mud and sand at the bottom and gather the mud and sand towards the middle of the scraper, thereby improving the suction effect of the suction pipe on the mud and sand.

[0012] In one specific implementation, the surface of the scraper plate is set as an inclined surface from high to low along the moving direction of the walking frame.

[0013] By adopting the above technical solution, the surface of the scraper plate is set as an inclined surface from high to low along the moving direction of the walking frame. This allows the mud and sand to be scraped up and moved along the surface of the scraper plate, thereby preventing the mud and sand from accumulating and being continuously pushed forward by the scraper plate.

[0014] In one specific implementation, the drive mechanism is provided in two sets, and the two sets of drive mechanisms are respectively installed on both sides of the walking frame.

[0015] By adopting the above technical solution, and by setting up two sets of drive mechanisms and installing the two sets of drive mechanisms on both sides of the walking frame, the stability of the walking frame movement is improved.

[0016] In one specific implementation, the drive mechanism includes a drive motor, rollers, and a guide rail. The rollers are rotatably connected to the walking frame, the guide rails are mounted on the ground, the drive motor is mounted on the walking frame, and the output shaft of the drive motor is fixedly connected to the rollers. The rollers are rotatably connected to the guide rails.

[0017] By adopting the above technical solution, the drive motor drives the roller to rotate. The roller is connected to the walking frame and a guide rail is installed on the ground. Through the friction between the roller and the guide rail, the roller rolls and drives the walking frame to move along the guide rail, thereby realizing the sludge removal work in different parts of the sedimentation tank.

[0018] In one specific implementation, multiple suction pipes are provided, and the multiple suction pipes are arranged sequentially along the length of the connecting pipe. Multiple sets of scraping mechanisms are provided corresponding to the suction pipes, and the positions of the multiple sets of mechanisms are corresponding to the suction pipes.

[0019] By adopting the above technical solution, multiple sludge suction pipes are set up, and these multiple sludge suction pipes are arranged sequentially along the length of the connecting pipe. Correspondingly, multiple sets of sludge scraping mechanisms are set up, thereby further improving the sludge removal effect at the bottom of the pool.

[0020] In one specific implementation, a vent valve is installed on the connecting pipe.

[0021] By adopting the above technical solution, after the bottom of the pool is cleaned, the siphon effect between the sludge suction pipe, the connecting pipe and the sludge discharge pipe can be relieved by opening the vent valve.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The walking frame is moved by the drive mechanism and the sludge pump is started. The sludge and sand at the bottom of the pool are sucked into the connecting pipe through the suction pipe and then discharged through the discharge pipe. The sludge pump is then turned off. The sludge and sand are automatically removed by the siphon principle. During the movement of the walking frame, the sludge and sand at the bottom of the pool are scraped up by the sludge removal mechanism, thereby improving the suction effect of the suction pipe on the bottom of the pool.

[0024] 2. The scraper is set as a V-shaped plate, with the height of the scraper gradually decreasing from both ends to the middle. The inlet of the suction pipe is located in the middle of the scraper. This allows the scraper to scrape up the mud and sand at the bottom and gather it towards the middle of the scraper, thereby improving the suction effect of the suction pipe.

[0025] 3. The surface of the scraper plate is set at an angle from high to low along the direction of movement of the walking frame. This allows the mud and sand to be scraped up and moved along the surface of the scraper plate, thus preventing the mud and sand from accumulating and being continuously pushed forward by the scraper plate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure installed in the sedimentation tank according to an embodiment of this application.

[0027] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0028] Figure 3 This is a structural schematic diagram of an embodiment of this application.

[0029] Figure 4 for Figure 3 Enlarged view of section B.

[0030] Explanation of reference numerals in the attached drawings: 1. Walking frame; 2. Drive mechanism; 21. Drive motor; 22. Roller; 23. Guide rail; 3. Sludge removal mechanism; 31. Connecting pipe; 32. Suction pipe; 33. Sludge pump; 34. Sludge discharge pipe; 35. Vent valve; 4. Sludge scraping mechanism; 41. Sludge scraper frame; 42. Sludge scraper. Detailed Implementation

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] This application discloses a sludge removal device for sedimentation tanks.

[0033] like Figure 1 and Figure 3 As shown, the sedimentation tank sludge removal device includes a walking frame 1, a drive mechanism 2, a sludge removal mechanism 3, and a sludge scraping mechanism 4. The drive mechanism 2 is provided in two sets, which are respectively installed on both sides of the walking frame 1. The two sides of the walking frame 1 are respectively installed on the ground on both sides of the sedimentation tank, so that it can move along the sedimentation tank by means of the drive mechanism 2. The sludge removal mechanism 3 is installed on the walking frame 1 and can suck up the sludge and sand at the bottom of the tank. The sludge scraping mechanism 4 is installed corresponding to the sludge removal mechanism 3 and can scrape up the sludge and sand adsorbed at the bottom of the tank, so as to facilitate the suction of the sludge removal mechanism 3.

[0034] like Figure 2 As shown, the drive mechanism 2 includes a drive motor 21, rollers 22, and a guide rail 23. The drive motor 21 is mounted on the walking frame 1. There are several rollers 22, which are rotatably connected to the walking frame 1. The output shaft of the drive motor 21 is fixedly connected to one of the rollers 22. The guide rail 23 is mounted on the ground on one side of the sedimentation tank. The rollers 22 are rotatably connected to the guide rail 23, so that the drive motor 21 can drive the rollers 22 to rotate. The rollers 22 are rotatably connected to the walking frame 1. The guide rail 23 is mounted on the ground. Through the friction between the rollers 22 and the guide rail 23, the walking frame 1 is driven to move along the guide rail 23.

[0035] like Figure 3 and 4As shown, the sludge removal mechanism 3 includes a connecting pipe 31, a suction pipe 32, a sludge removal pump 33, and a discharge pipe 34. The connecting pipe 31 is installed on the walking frame 1, and the length of the connecting pipe 31 corresponds to the length of the walking frame 1. Several suction pipes 32 are provided, with one end connected to the connecting pipe 31 and the other end extending to the bottom of the sedimentation tank. Several suction pipes 32 are evenly installed along the length of the connecting pipe 31. The sludge removal pump 33 is installed on the connecting pipe 31. The discharge pipe 34 is installed at one end of the connecting pipe 31. A sludge pool is provided on the ground on one side of the discharge pipe 34. The discharge pipe 34 extends into the sludge pool. The highest liquid level in the sludge pool is higher than the highest liquid level in the sedimentation tank, which facilitates the generation of a siphon effect between the connecting pipe 31, the suction pipe 32, and the discharge pipe 34, thereby reducing the energy consumption of using the mechanism. A vent valve 35 is provided on the connecting pipe 31.

[0036] Start the sludge pump 33 to suck the sludge from the bottom of the pool into the connecting pipe 31 through the sludge suction pipe 32, and then discharge the sludge from the connecting pipe 31 through the sludge discharge pipe 34. Then turn off the sludge pump 33. The sludge is automatically removed by the siphon principle. After the bottom of the pool is cleaned, the siphon effect between the sludge suction pipe 32, the connecting pipe 31 and the sludge discharge pipe 34 can be released by opening the vent valve 35.

[0037] like Figure 4 As shown, the sludge scraping mechanism 4 is provided with several sets corresponding to the sludge suction pipe 32. The sludge scraping mechanism 4 includes a sludge scraping frame 41 and a sludge scraping plate 42. The sludge scraping frame 41 is composed of two support rods. One end of the two support rods is fixedly connected to the walking frame 1, and the other end of the support rods extends to the bottom of the sedimentation tank. The two ends of the sludge scraping plate 42 are fixedly connected to the support rods on both sides respectively. The inlet of the sludge suction pipe 32 extends to the middle part of the sludge scraping plate 42. The sludge scraping plate 42 is preferably set as a V-shaped plate. The V-shaped plate is recessed inward along the moving direction of the walking frame 1. The height of the plate body at both ends of the sludge scraping plate 42 gradually decreases from the middle plate body. The upper surface of the sludge scraping plate 42 is set as an inclined surface from high to low along the moving direction of the walking frame 1.

[0038] The scraper blade 42 is set as a V-shaped plate, with the height of the scraper blade 42 gradually decreasing from both ends to the middle. The inlet of the suction pipe 32 is set at the middle part of the scraper blade 42, so that the scraper blade 42 can scrape up the mud and sand at the bottom and gather the mud and sand towards the middle part of the scraper blade 42. The upper surface of the scraper blade 42 is set as an inclined surface from high to low along the moving direction of the walking frame 1, so that after the mud and sand are scraped up, the mud and sand can move along the upper surface of the scraper blade 42, thereby avoiding the accumulation of mud and sand and continuously pushing it forward by the scraper blade 42, so that the mud and sand can be sucked away by the suction pipe 32.

[0039] The implementation principle of the sedimentation tank sludge removal device in this embodiment is as follows: A drive motor 21 drives a roller 22 to rotate. The roller 22 is rotatably connected to a traveling frame 1. A guide rail 23 is installed on the ground. Through the friction between the roller 22 and the guide rail 23, the traveling frame 1 moves along the guide rail 23. The scraper 42 is set as a V-shaped plate, with the height of the scraper 42 gradually decreasing from both ends to the middle. One end of the suction pipe 32 inlet is located in the middle of the scraper 42, thereby enabling the scraper 42 to scrape up the sludge at the bottom and gather it towards the middle of the scraper 42. The upper surface of the scraper 42 moves along the traveling frame... 1. The moving direction is set from high to low as an inclined plane, so that the mud and sand can be scraped up and moved along the upper surface of the scraper 42, thereby avoiding the accumulation of mud and sand and being continuously pushed forward by the scraper 42. Then the sludge pump 33 is started, and the mud and sand at the bottom of the pool are sucked into the connecting pipe 31 through the suction pipe 32, and then the mud and sand in the connecting pipe 31 are discharged through the discharge pipe 34. Then the sludge pump 33 is turned off. The mud and sand are automatically removed by the siphon principle, which improves the sludge removal effect of the sedimentation tank. After the bottom of the pool is cleaned, the siphon effect between the suction pipe 32, the connecting pipe 31 and the discharge pipe 34 can be released by opening the vent valve 35.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sludge removal device for a sedimentation tank, comprising a walking frame (1), wherein a driving mechanism (2) is mounted on the walking frame (1), the driving mechanism (2) being used to drive the walking frame (1) to move, characterized in that: The walking frame (1) is equipped with a sludge removal mechanism (3), which includes a connecting pipe (31), a sludge suction pipe (32), and a sludge removal pump (33). The connecting pipe (31) is installed on the walking frame (1). One end of the sludge suction pipe (32) is connected to the connecting pipe (31), and the other end of the sludge suction pipe (32) extends to the bottom of the sedimentation tank. The sludge removal pump (33) is installed on the connecting pipe (31), and a sludge discharge pipe (34) is provided on the connecting pipe (31). The walking frame (1) is equipped with a sludge scraping mechanism (4) for scraping up the sludge and sand settled at the bottom of the tank.

2. The sedimentation tank sludge removal device according to claim 1, characterized in that: The sludge scraping mechanism (4) includes a sludge scraper (41) and a sludge scraper (42). The sludge scraper (41) is mounted on the walking frame (1), and the sludge scraper (42) is mounted on the sludge scraper (41).

3. The sedimentation tank sludge removal device according to claim 2, characterized in that: The scraper (42) is configured as a V-shaped plate, and the height of the scraper (42) gradually decreases from both ends to the middle. The inlet of the suction pipe (32) is located at the middle part of the scraper (42).

4. The sedimentation tank sludge removal device according to claim 3, characterized in that: The upper surface of the scraper blade (42) is set as an inclined surface from high to low along the moving direction of the walking frame (1).

5. The sedimentation tank sludge removal device according to claim 1, characterized in that: The drive mechanism (2) is provided in two sets, and the two sets of drive mechanisms (2) are respectively installed on both sides of the walking frame (1).

6. The sedimentation tank sludge removal device according to claim 5, characterized in that: The drive mechanism (2) includes a drive motor (21), a roller (22) and a guide rail (23). The roller (22) is rotatably connected to the walking frame (1). The guide rail (23) is installed on the ground. The drive motor (21) is installed on the walking frame (1), and the output shaft of the drive motor (21) is fixedly connected to the roller (22). The roller (22) is tumbled on the guide rail (23).

7. The sedimentation tank sludge removal device according to claim 1, characterized in that: Multiple suction pipes (32) are provided, and the multiple suction pipes (32) are arranged sequentially along the length direction of the connecting pipe (31). Multiple sets of scraping mechanisms (4) are provided corresponding to the suction pipes (32), and the positions of the multiple sets of scraping mechanisms (4) are arranged corresponding to the suction pipes (32).

8. The sedimentation tank sludge removal device according to claim 1, characterized in that: A vent valve (35) is installed on the connecting pipe (31).