A backwash inclined plate sedimentation structure
By designing a backwashing mechanism that utilizes bidirectional nozzles and scrapers in conjunction with high-pressure water flow, the problem of incomplete cleaning of stubborn sludge on the inclined plate surface is solved, achieving efficient operation and convenient handling of the inclined plate sedimentation tank.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI YUANSHEN ENVIRONMENTAL PROTECTION EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-08-16
- Publication Date
- 2026-07-21
Smart Images

Figure CN224524050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inclined plate sedimentation technology, and in particular to a backwashing inclined plate sedimentation structure. Background Technology
[0002] The backwashing inclined plate sedimentation structure is a water treatment equipment structure that combines the high-efficiency separation characteristics of inclined plate sedimentation with the backwashing function. It is mainly used to solve the problems of easy sludge accumulation and frequent manual cleaning required by traditional inclined plate sedimentation tanks. Through automated or semi-automated backwashing, sludge on the surface of the inclined plate and the bottom of the tank is removed, maintaining sedimentation efficiency.
[0003] Inclined plate (tube) sedimentation tanks have obvious drawbacks. Activated sludge is easy to adhere to the inclined plates (tubes), affecting the sedimentation effect and even clogging the inclined plates (tubes). At the same time, under anaerobic conditions, the gas produced by anaerobic digestion will interfere with the sedimentation of sludge when it rises, and will carry the sludge that falls off the plate to the water surface to form a floating mud layer. After a long period of use, the sedimentation effect of the inclined plate sedimentation tank will be poor.
[0004] The existing patent (publication number: CN216986421U) describes an inclined plate sedimentation tank with backwashing. This utility model uses high-pressure flushing to solve the problem of activated sludge adhering to the inclined plate, and the sludge scraper can remove the floating sludge on the water surface in time during anaerobic conditions. It can effectively solve the problem of poor sedimentation effect after the inclined plate sedimentation tank has been used for a long time.
[0005] To address the aforementioned issues, existing patents have provided solutions. However, these patents suggest that the sludge adhering to the surface of the inclined plate in the inclined plate unit is only rinsed by a high-pressure rotating backwash water pipe. As the high-pressure water flows along the inclined plate, it will experience frictional loss with the inclined plate surface, causing the impact force of the high-pressure water to gradually decrease. This is especially true for stubborn sludge that is firmly attached to the inclined plate surface, which can easily lead to the inclined plate not being thoroughly cleaned, thus affecting the backwashing effect of the inclined plate.
[0006] To address this, a backwashing inclined plate sedimentation structure is proposed. Utility Model Content
[0007] The purpose of this invention is to provide a backwashing inclined plate sedimentation structure that can solve the problem in existing patents where sludge adhering to the inclined plate surface is washed only by a high-pressure rotating backwashing water pipe. As the high-pressure water flows along the inclined plate, friction loss occurs between the high-pressure water source and the inclined plate surface, causing the impact force of the high-pressure water source to gradually decrease. This is especially true for stubborn sludge firmly attached to the inclined plate surface, which can easily lead to the inclined plate not being thoroughly cleaned, thus affecting the backwashing effect of the inclined plate.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a backwashing inclined plate sedimentation structure, comprising an inclined plate sedimentation tank and a plurality of inclined plate bodies, wherein a backwashing mechanism is provided inside the inclined plate sedimentation tank, and the number of backwashing mechanisms is plurality of them, and a water conveying mechanism is provided on the top of the backwashing mechanism;
[0009] The backwashing mechanism includes several bidirectional nozzles, several drain pipes, and two scrapers. The right side of the bidirectional nozzles is fixedly connected to the left side of the drain pipes, and the right side of the scrapers is fixedly connected to the left side of the drain pipes. The surface of the scrapers is in contact with the surface of the inclined plate body.
[0010] Preferably, the water conveying mechanism includes an inlet pipe, two sliders, and a water delivery pipe. The bottom of the inlet pipe is fixedly connected to the top of the water delivery pipe. The side of the slider closest to the water delivery pipe is fixedly connected to the water delivery pipe. The top of the drain pipe is fixedly connected to the bottom of the water delivery pipe.
[0011] Preferably, the front and rear sides of the inclined plate sedimentation tank are fixedly connected to a slide, and the inner wall of the slide is in contact with the surface of the slide.
[0012] Preferably, handles are fixedly connected to both the front and rear sides of the top of the water pipe.
[0013] Preferably, a limiting plate is fixedly connected to the top of the water supply pipe, a positioning plate is fixedly connected to the right side of the inclined plate sedimentation tank, a limiting button is provided on the top of the limiting plate, the bottom of the limiting button passes through the limiting plate and extends into the interior of the positioning plate, and the surface of the limiting button is threadedly connected to the interior of the limiting plate.
[0014] Preferably, the surfaces of the water pipe, bidirectional nozzle, and scraper are all coated with silicone coating.
[0015] Preferably, both the slider and the carriage are smoothed by polishing.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This application sets up a backwashing mechanism, which sprays high-pressure water through bidirectional nozzles to wash the sludge on the surface of the inclined plate body. At the same time, a scraper is used to remove stubborn residues. The back-and-forth movement of the scraper achieves thorough cleaning of the sludge on the surface of the inclined plate body. The water pipe, bidirectional nozzles and scraper surfaces are coated with organosilicon coating to reduce sludge adhesion and ensure efficient operation. This solves the problem of incomplete cleaning caused by the weakening of the impact force of high-pressure water in the prior art.
[0018] 2. This application achieves stable high-pressure water delivery by setting up a water conveying mechanism, which connects the inlet pipe, the water delivery pipe and the drain pipe. The slider and the carriage cooperate to guide the movement of the water delivery pipe, the handle facilitates operation and control of movement, the limiting structure ensures the stability of the water delivery pipe in the non-working state, and the whole provides movement support for backwashing, improving the convenience and stability of operation. Attached Figure Description
[0019] Figure 1 This is an overall structural diagram of the backwashing inclined plate sedimentation structure of this utility model;
[0020] Figure 2 This is a three-dimensional diagram showing the connection between the drainage pipe and the water supply pipe in this utility model.
[0021] Figure 3 This is a three-dimensional connection diagram of the backwashing mechanism in this utility model;
[0022] Figure 4 This is a three-dimensional connection diagram of the inclined plate sedimentation tank and the slide frame in this utility model;
[0023] Figure 5 This is a three-dimensional exploded view of the limiting plate and the limiting button in this utility model;
[0024] Figure 6 This is a three-dimensional connection diagram of the water conveying mechanism in this utility model.
[0025] In the diagram, 1 is the inclined plate sedimentation tank; 2 is the inclined plate body; 3 is the water conveying mechanism; 301 is the water inlet pipe; 302 is the slider; 303 is the water conveying pipe; 4 is the limiting plate; 5 is the handle; 6 is the backwashing mechanism; 601 is the bidirectional nozzle; 602 is the drain pipe; 603 is the scraper; 7 is the slide; 8 is the positioning plate; and 9 is the limiting button. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-6 The present invention provides the following technical solution:
[0028] A backwashing inclined plate sedimentation structure includes an inclined plate sedimentation tank 1 and several inclined plate bodies 2. The inclined plate sedimentation tank 1 is provided with a backwashing mechanism 6. The number of backwashing mechanisms 6 is several. A water conveying mechanism 3 is provided on the top of the backwashing mechanism 6.
[0029] The backwashing mechanism 6 includes several bidirectional nozzles 601, several drain pipes 602 and two scrapers 603. The right side of the bidirectional nozzles 601 is fixedly connected to the left side of the drain pipes 602, and the right side of the scrapers 603 is fixedly connected to the left side of the drain pipes 602. The surface of the scrapers 603 is in contact with the surface of the inclined plate body 2.
[0030] In this embodiment: when it is necessary to backwash the sludge attached to the surface of the inclined plate body 2, the external high-pressure water source is connected to the water inlet pipe 301 in the water conveying mechanism 3. The high-pressure water enters the water conveying pipe 303 through the water inlet pipe 301. Turn the limit button 9 to move it upward and disengage it from the positioning plate 8, releasing the limit on the limit plate 4. Then, hold the handle 5 and pull it to the left. The water conveying pipe 303 drives the slider 302 to slide on the slide frame 7, so that the water conveying pipe 303 drives the drain pipe 602 to move. The bidirectional nozzle 601 on the drain pipe 602 moves with it, spraying high-pressure water onto the surface of the inclined plate body 2 to wash away the sludge. At the same time, the scraper 603 moves synchronously to scrape off the remaining stubborn sludge. Pulling the handle 5 back and forth thoroughly cleans the inclined plate body 2, preventing stubborn stains from adhering. The surfaces of the water pipe 303, bidirectional nozzle 601, and scraper 603 are coated with silicone paint, which prevents sludge from adhering to themselves and ensures the efficient operation of the backwashing mechanism 6. This solves the problem in existing patents where sludge adhering to the inclined plate surface is only rinsed by high-pressure rotating backwashing water pipes. As the high-pressure water flows along the inclined plate, friction loss occurs between the high-pressure water source and the inclined plate surface, causing the impact force of the high-pressure water source to gradually decrease. This is especially true for stubborn sludge firmly attached to the inclined plate surface, which can easily lead to the inclined plate not being thoroughly cleaned, affecting the backwashing effect of the inclined plate.
[0031] Specifically, such as Figure 6 As shown, the water conveying mechanism 3 includes an inlet pipe 301, two sliders 302 and a water conveying pipe 303. The bottom of the inlet pipe 301 is fixedly connected to the top of the water conveying pipe 303. The side of the slider 302 near the water conveying pipe 303 is fixedly connected to the water conveying pipe 303. The top of the drain pipe 602 is fixedly connected to the bottom of the water conveying pipe 303.
[0032] Specifically, such as Figure 4 and Figure 6 As shown, the front and rear sides of the inclined plate sedimentation tank 1 are fixedly connected to the slide 7, and the inner wall of the slider 302 is in contact with the surface of the slide 7.
[0033] Specifically, such as Figure 2 As shown, handles 5 are fixedly connected to the front and rear sides of the top of the water pipe 303.
[0034] In this embodiment, the interconnected design of the inlet pipe 301, the delivery pipe 303, and the drain pipe 602 ensures that the external high-pressure water source can be stably delivered to the backwashing part. The cooperation between the slider 302 and the slide 7 provides guidance for the movement of the delivery pipe 303, ensuring that the backwashing mechanism 6 moves smoothly. The handle 5 facilitates manual operation and can flexibly control the movement direction and range of the backwashing mechanism 6, improving the ease of operation.
[0035] Specifically, such as Figure 2 , Figure 4 and Figure 5 As shown, a limiting plate 4 is fixedly connected to the top of the water supply pipe 303, a positioning plate 8 is fixedly connected to the right side of the inclined plate sedimentation tank 1, a limiting button 9 is provided on the top of the limiting plate 4, the bottom of the limiting button 9 passes through the limiting plate 4 and extends into the interior of the positioning plate 8, and the surface of the limiting button 9 is threadedly connected to the interior of the limiting plate 4.
[0036] Specifically, such as Figure 3 As shown, the surfaces of the water pipe 303, the bidirectional nozzle 601, and the scraper 603 are all coated with silicone paint.
[0037] In this embodiment: the cooperation of the limiting plate 4, the positioning plate 8 and the limiting button 9 can fix the position of the water pipe 303 and prevent accidental movement when not in operation. The silicone coating treatment reduces the adhesion of sludge on the surface of the water pipe 303, the bidirectional nozzle 601 and the scraper 603, reduces the difficulty of cleaning the components and maintains the backwashing effect.
[0038] Specifically, such as Figure 4 and Figure 6 As shown, both slider 302 and carriage 7 have undergone smooth polishing.
[0039] In this embodiment, the slider 302 and the carriage 7 are smoothed by polishing, which effectively reduces the friction when they move relative to each other, making the water pipe 303 drive the backwashing mechanism 6 to move more smoothly and effortlessly, reducing the intensity of operation and extending the service life of the components.
[0040] Working principle: When backwashing of sludge adhering to the surface of the inclined plate is required, connect the external high-pressure water source to the inlet pipe 301 in the water conveying mechanism 3. The high-pressure water will then enter the water conveying pipe 303 through the inlet pipe 301. At this time, turn the limit button 9. Since the surface of the limit button 9 is connected to the internal thread of the limit plate 4, the limit button 9 will move upward and disengage from the positioning plate 8 when it is turned, thereby releasing the limit plate 4. Then, hold the handles 5 on the front and rear sides of the top of the water conveying pipe 303 and pull it to the left. The water conveying pipe 303 will drive the sliders 302 on both sides to slide on the surface of the slide frame 7 fixedly connected to the front and rear sides inside the inclined plate sedimentation tank 1. Because both the sliders 302 and the slide frame 7 have been smoothly polished. This design reduces friction during sliding, facilitating smooth movement of the water pipe 303. As the water pipe 303 moves, it also drives the drain pipe 602, which is fixedly connected to its bottom, to move synchronously. The surface of the drain pipe 602 contacts the surface of the inclined plate body 2 and is at the same angle to it. Therefore, during the movement of the drain pipe 602, the bidirectional nozzle 601, fixedly connected to its left side, also moves accordingly. The bidirectional nozzle 601, also at the same angle to the inclined plate body 2, accurately sprays the high-pressure water from the water pipe 303 onto the surface of the inclined plate body 2, washing away the attached sludge. Simultaneously, the scraper 603, fixedly connected to the left side of the drain pipe 602, also moves with the drain pipe 602, scraping... The scraper 603 contacts the surface of the inclined plate body 2 at the same angle, allowing it to scrape away stubborn sludge remaining on the surface of the inclined plate body 2 after water rinsing. By pulling the handle 5 back and forth, the water pipe 303 drives the drain pipe 602, the bidirectional nozzle 601, and the scraper 603 to move repeatedly across the surface of the inclined plate body 2, achieving thorough cleaning of the sludge on the surface of the inclined plate body 2 and preventing stubborn sludge from adhering. In addition, since the surfaces of the water pipe 303, the bidirectional nozzle 601, and the scraper 603 are all coated with silicone paint, which has good anti-adhesion properties, it can prevent sludge from adhering to the surface of these components during operation, ensuring the efficient operation of the backwashing mechanism 6 and solving the problem of inclined plate sludge in existing patents. The sludge adhering to the surface of the inclined plate in the unit is only washed by the high-pressure rotating backwash water pipe. As the high-pressure water flows along the inclined plate, it will generate friction loss with the surface of the inclined plate, causing the impact force of the high-pressure water to gradually decrease. Especially for stubborn sludge that is firmly attached to the surface of the inclined plate, it is easy to cause the inclined plate to not be thoroughly cleaned, which affects the backwashing effect of the inclined plate. It should be noted that even if sludge causes blockage of the bidirectional nozzle 601, when the external high-pressure water source is connected to the inlet pipe 301, the external high-pressure water source can clear the bidirectional nozzle 601 without affecting the normal use of the bidirectional nozzle 601. Furthermore, the inclined plate sedimentation tank 1 is a mature technology that has been published, and its basic mechanism will not be elaborated here.
[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A backwashing inclined plate sedimentation structure, comprising an inclined plate sedimentation tank (1) and a plurality of inclined plate bodies (2), characterized in that: The inclined plate sedimentation tank (1) is equipped with a backwashing mechanism (6), and there are several backwashing mechanisms (6). A water conveying mechanism (3) is provided on the top of the backwashing mechanism (6). The backwashing mechanism (6) includes several bidirectional nozzles (601), several drain pipes (602) and two scrapers (603). The right side of the bidirectional nozzles (601) is fixedly connected to the left side of the drain pipes (602), and the right side of the scrapers (603) is fixedly connected to the left side of the drain pipes (602). The surface of the scrapers (603) is in contact with the surface of the inclined plate body (2).
2. The backwashing inclined plate sedimentation structure according to claim 1, characterized in that: The water conveying mechanism (3) includes an inlet pipe (301), two sliders (302) and a water conveying pipe (303). The bottom of the inlet pipe (301) is fixedly connected to the top of the water conveying pipe (303). The side of the slider (302) near the water conveying pipe (303) is fixedly connected to the water conveying pipe (303). The top of the drain pipe (602) is fixedly connected to the bottom of the water conveying pipe (303).
3. The backwashing inclined plate sedimentation structure according to claim 2, characterized in that: The inclined plate sedimentation tank (1) is fixedly connected to the front and rear sides of the slide (7), and the inner wall of the slider (302) is in contact with the surface of the slide (7).
4. The backwashing inclined plate sedimentation structure according to claim 2, characterized in that: Handles (5) are fixedly connected to the front and rear sides of the top of the water pipe (303).
5. The backwashing inclined plate sedimentation structure according to claim 2, characterized in that: The top of the water supply pipe (303) is fixedly connected to a limiting plate (4), and the right side of the inclined plate sedimentation tank (1) is fixedly connected to a positioning plate (8). The top of the limiting plate (4) is provided with a limiting button (9). The bottom of the limiting button (9) passes through the limiting plate (4) and extends into the interior of the positioning plate (8). The surface of the limiting button (9) is threadedly connected to the interior of the limiting plate (4).
6. The backwashing inclined plate sedimentation structure according to claim 2, characterized in that: The surfaces of the water pipe (303), bidirectional nozzle (601), and scraper (603) are all coated with silicone paint.
7. The backwashing inclined plate sedimentation structure according to claim 3, characterized in that: Both the slider (302) and the carriage (7) are smooth and polished.