Sewage sedimentation tank convenient for sludge cleaning
By employing a scraper structure and lifting components driven by bidirectional telescopic rods in the sewage sedimentation tank, the problems of sludge accumulation and jamming during unidirectional scraper cleaning are solved, achieving efficient sludge cleaning and discharge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGRUIHE CONSTR GRP CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
In existing sewage sedimentation tanks, unidirectional scrapers are prone to sludge accumulation and scraper jamming when cleaning sludge, especially under high-concentration sludge conditions, where resistance increases and efficient cleaning becomes difficult.
The scraper structure is driven by a two-way telescopic rod. The scrapers move in opposite directions to squeeze and push the sludge in a concentrated manner. Combined with the lifting component, the sludge is lifted to the guide plate for discharge, reducing the load on a single scraper and avoiding jamming.
It achieves efficient centralized cleaning of sludge, reduces the working resistance of the scraper, avoids jamming, and has a simple structure and is easy to use.
Smart Images

Figure CN224156416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater sedimentation technology, specifically a wastewater sedimentation tank that facilitates sludge removal. Background Technology
[0002] Wastewater sedimentation tanks are the core equipment of wastewater treatment systems, mainly used to settle and remove solid particles and suspended matter from wastewater.
[0003] In existing technologies, sedimentation tanks generally use unidirectional moving flat scrapers for sludge cleaning. The working principle is that the scraper moves in a straight line in one direction, pushing the sludge to the designated area. This unidirectional scraping will cause the sludge to accumulate continuously in front of the scraper, resulting in the pushing resistance increasing with the stroke. Especially when the sludge concentration is high, the scraper is prone to jamming. Utility Model Content
[0004] The purpose of this invention is to provide a wastewater sedimentation tank that facilitates sludge cleaning, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a sewage sedimentation tank for easy sludge cleaning, comprising a sedimentation tank, a cleaning component provided on one side of the sedimentation tank, and a lifting component provided at the upper end of the sedimentation tank;
[0006] The cleaning assembly includes a bidirectional telescopic rod fixedly connected to one side of the sedimentation tank. Two extrusion plates are fixedly connected to the output end of the bidirectional telescopic rod. A round shaft is movably inserted into the hollow part of each of the two extrusion plates. A scraper is fixedly connected to one side of the round shaft. A limit groove is opened at the upper end of the scraper. A guide plate is fixedly connected to one side of the upper end of the sedimentation tank.
[0007] The lifting assembly includes a support frame fixedly connected to the upper end of the sedimentation tank, a telescopic rod fixedly connected to the lower end of the support frame, and a limit block fixedly connected to the output end of the telescopic rod, with the limit block corresponding to a limit groove.
[0008] Preferably, it includes a sedimentation tank, a cleaning component is provided on one side of the sedimentation tank, and a lifting component is provided at the upper end of the sedimentation tank;
[0009] The cleaning assembly includes a bidirectional telescopic rod fixedly connected to one side of the sedimentation tank. Two extrusion plates are fixedly connected to the output end of the bidirectional telescopic rod. A round shaft is slidably connected to the hollow part of each of the two extrusion plates. A scraper is fixedly connected to one side of the round shaft. A limit groove is opened at the upper end of the scraper. A guide plate is fixedly connected to one side of the upper end of the sedimentation tank.
[0010] The lifting assembly includes a support frame fixedly connected to the upper end of the sedimentation tank, a telescopic rod fixedly connected to the lower end of the support frame, and a limit block fixedly connected to the output end of the telescopic rod, with the limit block corresponding to a limit groove.
[0011] Preferably, the scraper consists of three surfaces, with the bottom surface of the scraper fitting against the bottom of the sedimentation tank and one side of the bottom surface being inclined, and the two sides of the scraper fitting against the side wall of the sedimentation tank.
[0012] Preferably, both the bidirectional telescopic rod and the telescopic rod are electrically powered telescopic rods.
[0013] Preferably, the guide plate has a concave structure, and the width of the guide plate is greater than the width of the scraper.
[0014] Compared with existing technologies, the advantages of this invention are as follows: Two scrapers are driven to move in opposite directions by a bidirectional telescopic rod, forming opposing scraping. When the scrapers move towards each other, the sludge is squeezed bidirectionally and pushed towards the central area. Compared with unidirectional scraping, each scraper only needs to bear half of the pushing resistance, reducing the load on the scrapers and avoiding scraper jamming due to excessive resistance. Simultaneously, when the two scrapers are in contact, the telescopic rod can lift the sludge to the guide plate area for sludge discharge. The structure is simple and easy to use. Attached Figure Description
[0015] Figure 1 This is a front view of the structure of this utility model;
[0016] Figure 2 This is a side view of the structure of this utility model;
[0017] Figure 3 This is a first-state structural diagram of the present invention;
[0018] Figure 4 This is the second structural state diagram of this utility model.
[0019] In the diagram: 1. Sedimentation tank; 2. Bidirectional telescopic rod; 3. Extrusion plate; 4. Round shaft; 5. Scraper; 6. Limiting groove; 7. Guide plate; 8. Support frame; 9. Telescopic rod; 10. Limiting block. Detailed Implementation
[0020] 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 protection scope of the present utility model.
[0021] Please see Figure 1-4The present invention provides the following technical solution:
[0022] Example 1: A sewage sedimentation tank for easy sludge cleaning includes a sedimentation tank 1, a cleaning component on one side of the sedimentation tank 1, and a lifting component at the upper end of the sedimentation tank 1. The cleaning component includes a bidirectional telescopic rod 2 fixedly connected to one side of the sedimentation tank 1. Two extrusion plates 3 are fixedly connected to the output end of the bidirectional telescopic rod 2. A round shaft 4 is movably inserted into the hollow part of each of the two extrusion plates 3. A scraper 5 is fixedly connected to one side of the round shaft 4. A limiting groove 6 is opened at the upper end of the scraper 5. A guide plate 7 is fixedly connected to one side of the upper end of the sedimentation tank 1. The lifting component includes a support frame 8 fixedly connected to the upper end of the sedimentation tank 1. A telescopic rod 9 is fixedly connected to the lower end of the support frame 8. A limiting block 10 is fixedly connected to the output end of the telescopic rod 9. The limiting block 10 corresponds to the limiting groove 6.
[0023] Both the limiting block 10 and the limiting groove 6 are designed with a T-shaped structure. The limiting block 10 and the limiting groove 6 are slidably connected. The scraper 5 consists of three surfaces. The bottom surface of the scraper 5 is in contact with the bottom of the sedimentation tank 1, and one side of the bottom surface is inclined. The two sides of the scraper 5 are in contact with the side wall of the sedimentation tank 1. Both the bidirectional telescopic rod 2 and the telescopic rod 9 are electric telescopic rods. The guide plate 7 has a concave structure, and the width of the guide plate 7 is greater than the width of the scraper 5.
[0024] In use, the bidirectional telescopic rod 2 of the cleaning component is activated. The bidirectional telescopic rod 2 drives two squeezing plates 3 to move towards each other through the output end. The two squeezing plates 3 moving towards each other squeeze the round shaft 4. The squeezed round shaft 4 drives the scraper 5 to move. The bottom surface and two sides of the scraper 5 form a three-sided sludge scraping structure. The inclined bottom surface cuts into the sludge layer at an acute angle, and the sides simultaneously adhere to the tank wall, gradually scraping up the sludge at the bottom and side walls of the sedimentation tank 1 and pushing it towards the middle. When the two scrapers 5 move towards each other with the squeezing plates 3 and adhere to each other, the limiting grooves 6 opened at the upper end of the two scrapers 5 are completely fitted onto the outer wall of the limiting block 10. Then, the telescopic rod 9 is activated, and its output end drives the limiting block 10 to move upward. The limiting block 10, through the limiting cooperation of the T-shaped structure, lifts the scraper 5 to the upper surface of the sedimentation tank 1. At this time, the scraped sludge is discharged along the sludge discharge port of the guide plate 7 under the guidance of the guide plate 7.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wastewater sedimentation tank for easy sludge removal, comprising a sedimentation tank (1), characterized in that: A cleaning component is provided on one side of the sedimentation tank (1), and a lifting component is provided at the upper end of the sedimentation tank (1); The cleaning assembly includes a bidirectional telescopic rod (2) fixedly connected to one side of the sedimentation tank (1). Two extrusion plates (3) are fixedly connected to the output end of the bidirectional telescopic rod (2). A round shaft (4) is movably inserted into the hollow part of each of the two extrusion plates (3). A scraper (5) is fixedly connected to one side of the round shaft (4). A limit groove (6) is opened at the upper end of the scraper (5). A guide plate (7) is fixedly connected to one side of the upper end of the sedimentation tank (1). The lifting assembly includes a support frame (8) fixedly connected to the upper end of the sedimentation tank (1), and a telescopic rod (9) fixedly connected to the lower end of the support frame (8). A limit block (10) is fixedly connected to the output end of the telescopic rod (9), and the limit block (10) corresponds to the limit groove (6).
2. The wastewater sedimentation tank for easy sludge cleaning according to claim 1, characterized in that: Both the limiting block (10) and the limiting groove (6) are T-shaped structures, and the limiting block (10) and the limiting groove (6) are slidably connected.
3. A wastewater sedimentation tank for easy sludge cleaning according to claim 1, characterized in that: The scraper (5) consists of three surfaces. The bottom surface of the scraper (5) is attached to the bottom of the sedimentation tank (1), and one side of the bottom surface is inclined. The two sides of the scraper (5) are attached to the side wall of the sedimentation tank (1).
4. A wastewater sedimentation tank for easy sludge cleaning according to claim 1, characterized in that: Both the bidirectional telescopic rod (2) and the telescopic rod (9) are electric telescopic rods.
5. A wastewater sedimentation tank for easy sludge cleaning according to claim 1, characterized in that: The guide plate (7) has a concave structure, and the width of the guide plate (7) is greater than the width of the scraper (5).