Water treatment sedimentation filter device

By setting up partition plates and small-volume chambers in the sedimentation tank to mix the flocculant, the problem of uneven flocculant diffusion is solved, achieving efficient flocculation and low-energy water treatment sedimentation and filtration, and reducing equipment maintenance difficulty and operating costs.

CN224677883UActive Publication Date: 2026-08-25CHENGDU CHANGJIANG WATER TREATMENT EQUIP CO LTD
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Patent Information

Application Number
CN202522147096.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-11
Publication Date
2026-08-25
Estimated Expiration
2035-10-11

AI Technical Summary

Technical Problem

In traditional sedimentation tanks, flocculants are difficult to diffuse evenly in a short time, leading to local aggregation or insufficient concentration, which affects the sedimentation effect. In addition, high-power stirring equipment has high energy consumption and is difficult to maintain.

Method used

The sedimentation tank is divided into multiple sedimentation spaces by a partition plate. Flocculant and water are mixed in a small volume chamber, and uniform mixing is achieved by natural flow, avoiding high-powered stirring equipment. The mixture is guided to the inner chamber through a flat pipe to ensure that the agent and wastewater are fully combined.

Benefits of technology

It improves the mixing uniformity of flocculants, enhances floc formation efficiency, shortens the sedimentation cycle, and reduces energy consumption and operation and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of water treatment sedimentation filtration equipment, including sedimentation tank, inner chamber is installed in sedimentation chamber, and the upper end of inner chamber is equipped with the barrier portion connected with the fixed barrier portion of inner chamber, and the barrier portion is connected with the fixed barrier portion of sedimentation chamber, and drainage device is installed in the side surface of sedimentation chamber, and buffer chamber is installed in the upper portion position of one side of sedimentation chamber, and buffer chamber is installed in the buffer chamber inside space and is divided into first chamber and second chamber by partition, and the upper end of partition is lower than the upper end of buffer chamber, and second chamber is communicated with inner chamber, and water lifting device is used to improve the water in sedimentation chamber to first chamber, and dosing device is used to add flocculating agent to first chamber, and the utility model has the beneficial effects as follows: solve the problem of flocculating agent local aggregation in traditional process, edge concentration is insufficient, ensure that reagent and sewage are fully combined, improve the efficiency of flocculation formation, avoid uneven condition of excessive flocculation or flocculation deficiency.
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Description

Technical Field

[0001] This utility model is a water treatment sedimentation and filtration device, belonging to the field of water treatment technology. Background Technology

[0002] In the sedimentation and filtration stage of water treatment, the sedimentation tank is the core equipment. It achieves the separation of fine particulate matter through wastewater settling and the assistance of flocculants. After the wastewater to be treated is introduced into the sedimentation tank, flocculants are added to the water. These chemical agents can adsorb suspended particles in the wastewater, forming denser flocs, accelerating particle settling, shortening the sedimentation cycle, and improving water treatment efficiency. This process is widely used in municipal wastewater treatment, industrial wastewater purification, and other scenarios, and is a key step in ensuring the quality of effluent.

[0003] The large volume of sedimentation tanks presents a significant challenge to the efficient action of flocculants: limited by the tank's space, the added flocculant cannot naturally diffuse throughout the entire water body in a short time. If relying solely on the water's own convection or gravity diffusion, the flocculant tends to accumulate locally near the injection point, forming a high-concentration area, while the concentration is insufficient in areas such as the tank edges and corners. This results in some fine particles failing to effectively bind with the flocculant, significantly reducing the settling effect and causing an imbalance between localized over-flocculation and localized under-flocculation, affecting the overall water treatment quality. To improve this situation, traditional solutions rely on high-powered mixing equipment: the high-speed rotation of the agitator breaks the static state of the water, forcibly mixing the flocculant with the wastewater. However, high-power agitation not only consumes a lot of energy and increases operating costs, but may also damage the already formed flocs due to excessive agitation intensity. The flocs are easily broken into small particles under violent disturbance and resuspended in the water, which in turn prolongs the settling time. At the same time, the installation and maintenance of agitation equipment need to go deep into the sedimentation tank, which is difficult to operate. Furthermore, long-term immersion in sewage can easily lead to component corrosion and failure, further increasing the burden of equipment operation and maintenance. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a water treatment sedimentation and filtration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water treatment sedimentation and filtration device, comprising: Sedimentation tank; A sedimentation chamber has an inner chamber installed inside. The upper end of the inner chamber is lower than the upper end of the sedimentation chamber. A barrier part is fitted on the upper end of the inner chamber and is fixedly connected to the inner chamber. The barrier part is fixedly connected to the sedimentation chamber. A drainage component is installed on one side of the sedimentation chamber. A buffer chamber is installed on the upper part of one side of the sedimentation chamber. The buffer chamber is equipped with a partition plate that divides the internal space of the buffer chamber into a first chamber and a second chamber. The upper end of the partition plate is lower than the upper end of the buffer chamber. The second chamber communicates with the inner chamber. Water lifting device, used to lift water from the sedimentation chamber to the first chamber; The dosing device is used to add flocculant into the first chamber.

[0006] Furthermore, the water lifting device includes a first water pump, which is installed on the upper surface of the sedimentation tank. A suction pipe is installed at the inlet end of the first water pump, and a first shut-off valve is installed at the outlet end of the first water pump. A water delivery pipe is installed at the end of the first shut-off valve away from the first water pump, and the end of the water delivery pipe away from the first shut-off valve extends into the first chamber.

[0007] Furthermore, the dosing device includes a mixing tank, which is provided on one side of the sedimentation chamber. A support platform is provided on the upper side of the mixing tank. A second water pump is installed on the upper surface of the support platform. A suction pipe is installed at the inlet end of the second water pump. The lower end of the suction pipe extends to the lower part of the mixing tank. A delivery pipe is installed at the outlet end of the second water pump. The end of the delivery pipe away from the second water pump extends into the first chamber.

[0008] Furthermore, a motor is installed on the upper surface of the support platform, and an agitator is installed on the output shaft of the motor. The lower end of the agitator extends into the mixing tank, and a feeding port is provided at the top of the mixing tank.

[0009] Furthermore, a flat tube is installed on one side of the second chamber, and the end of the flat tube away from the second chamber passes through the inner chamber and is connected and fixed to the inner chamber.

[0010] Furthermore, a bracket is installed on the outer surface of the sedimentation chamber, the buffer chamber is connected and fixed to the bracket, a drain pipe connected to the inner chamber is installed at the bottom of the sedimentation chamber, and a drain valve is installed at the end of the drain pipe away from the sedimentation chamber.

[0011] Furthermore, the drainage component includes a water storage container. A water storage container is provided on one side of the sedimentation tank. A drain pipe is installed on the top of the water storage container. A second shut-off valve is installed at the end of the drain pipe away from the water storage container. A connecting pipe is installed at the end of the second shut-off valve away from the drain pipe. The upper surface of the blocking part is recessed downward to form a groove. The end of the connecting pipe away from the second shut-off valve is connected to the groove. A drain valve is installed at the lower part of one side of the water storage container.

[0012] Furthermore, the sedimentation tank is equipped with a first partition and a second partition that divide the internal space of the sedimentation tank into three sedimentation spaces. The upper end of the first partition is lower than the upper end of the sedimentation chamber, and an overflow outlet is provided at the upper part of one side of the first partition. The upper end of the second partition is lower than the height of the overflow outlet.

[0013] The beneficial effects of this utility model are: Water from the sedimentation chamber is transported to the first chamber, and flocculant is added simultaneously. The two mix naturally in the small-volume first chamber without the need for high-power stirring, forming a uniformly concentrated solution. The upper part of the partition plate is lower than the buffer chamber, allowing the mixed solution to overflow smoothly into the second chamber and then be transported to the inner chamber through a flat pipe. This small-space premixing + directional flow design solves the problems of localized flocculant aggregation and insufficient edge concentration in traditional processes, ensuring that the agent and wastewater are fully combined, improving floc formation efficiency, and avoiding uneven conditions of over-flocculation or under-flocculation. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a water treatment sedimentation and filtration device according to the present invention; Figure 2 This is a perspective view of a water treatment sedimentation and filtration device according to the present invention; Figure 3 This is another perspective view of a water treatment sedimentation and filtration device according to the present invention; Figure 4 This is an assembly diagram of the inner chamber, buffer chamber, and sedimentation chamber in a water treatment sedimentation and filtration device according to the present invention. In the picture: 1. Sedimentation tank; 11. First baffle; 12. Overflow outlet; 13. Second baffle; 2. Sedimentation chamber; 21. Inner chamber; 22. Support frame; 23. Drain pipe; 24. Drain valve; 25. Barrier section; 26. Groove section; 3. First water pump; 31. Suction pipe; 32. First shut-off valve; 33. Water delivery pipe; 4. Water storage container; 41. Drain valve; 42. Drain pipe; 43. Second shut-off valve; 44. Connecting pipe; 5. Buffer chamber; 51. Divider plate; 52. Flat tube; 6. Mixing tank; 61. Drug delivery pipe; 62. Second water pump; 63. Motor; 64. Support platform. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figures 1-3 This utility model provides a technical solution: a water treatment sedimentation and filtration device, including a sedimentation tank 1. The sedimentation tank 1 is equipped with a first partition 11 and a second partition 13 that divides the internal space of the sedimentation tank 1 into three sedimentation spaces. The upper end of the first partition 11 is lower than the upper end of the sedimentation chamber 2. An overflow outlet 12 is provided on the upper part of one side of the first partition 11. The upper end of the second partition 13 is lower than the height of the overflow outlet 12. The sedimentation tank 1 is divided into three sedimentation spaces by the first partition 11 and the second partition 13, forming a stepped sedimentation process: wastewater first enters the first sedimentation space, where larger particles initially settle; the remaining wastewater enters the second space through the overflow outlet 12 of the first partition 11, further removing medium-sized particles; finally, it enters the space near the sedimentation chamber 2 through the second partition 13, completing the deep sedimentation of fine particles. This graded design avoids interference between particles of different sizes, improves sedimentation efficiency, reduces subsequent filtration pressure, and ensures that the water treated in the inner chamber 21 has a lower impurity content, laying a good foundation for the flocculation process.

[0017] See Figures 1-4 The sedimentation chamber 2 contains an inner chamber 21, the upper end of which is lower than the upper end of the sedimentation chamber 2. A barrier 25, fixed to and connected to the upper end of the inner chamber 21, is fitted onto the upper end of the inner chamber 21. A water storage container 4 is located on one side of the sedimentation tank 1. A drain pipe 42 is installed on the top of the water storage container 4. A second shut-off valve 43 is installed at the end of the drain pipe 42 away from the water storage container 4, and a connecting pipe 44 is installed at the end of the second shut-off valve 43 away from the drain pipe 42. The upper surface of the barrier 25 is recessed downwards to form a groove 26. The end of the connecting pipe 44 away from the second shut-off valve 43 is connected to the groove 26. A drain valve 41 is installed on the lower part of one side of the water storage container 4. When the drain valve 41 is opened, the water overflowing from the inner chamber 21 first enters the space formed by the inner chamber 21, the barrier 25, and the sedimentation chamber 2, and then flows into the water storage container 4 through the channel formed by the groove 26, the connecting pipe 44, and the drain pipe 42, thus collecting the clarified water.

[0018] The buffer chamber 5 is installed on the upper part of one side of the sedimentation chamber 2. A bracket 22 is installed on the outer surface of the sedimentation chamber 2. The buffer chamber 5 is connected and fixed to the bracket 22. The bracket 22 supports the sedimentation chamber 2 and the buffer chamber 5. A drain pipe 23 connected to the inner chamber 21 is installed at the bottom of the sedimentation chamber 2. A drain valve 24 is installed at the end of the drain pipe 23 away from the sedimentation chamber 2. After the drain valve 24 is opened, it is convenient to discharge the flocculent mixed with water that has settled in the inner chamber 21.

[0019] A partition plate 51 is installed inside the buffer chamber 5, dividing the internal space of the buffer chamber 5 into a first chamber and a second chamber. The upper end of the partition plate 51 is lower than the upper end of the buffer chamber 5. A flat tube 52 is installed on one side of the second chamber. The end of the flat tube 52 away from the second chamber passes through the inner chamber 21 and is connected and fixed to the inner chamber 21, thus enabling communication between the second chamber and the inner chamber 21. A first water pump 3 is installed on the upper surface of the sedimentation tank 1. A suction pipe 31 is installed at the inlet end of the first water pump 3, and a first shut-off valve 32 is installed at the outlet end of the first water pump 3. A water delivery pipe 33 is installed at the end of the first shut-off valve 32 away from the first water pump 3, and the end of the water delivery pipe 33 away from the first shut-off valve 32 extends into the first chamber. When the first water pump 3 is working, the water that has undergone multi-stage sedimentation enters the first chamber through the water delivery pipe 33.

[0020] See Figures 1-4 A mixing tank 6 is located on one side of the sedimentation chamber 2. A support platform 64 is located on the upper side of the mixing tank 6. A second water pump 62 is mounted on the upper surface of the support platform 64. A suction pipe is installed at the inlet end of the second water pump 62, and the lower end of the suction pipe extends into the lower part of the mixing tank 6. A delivery pipe 61 is installed at the outlet end of the second water pump 62, and the end of the delivery pipe 61 away from the second water pump 62 extends into the first chamber. A motor 63 is mounted on the upper surface of the support platform 64. An agitator is mounted on the output shaft of the motor 63, and the lower end of the agitator extends into the mixing tank 6. A feeding port is located at the top of the mixing tank 6. Flocculant and water are added into the mixing tank 6 through the feeding port. The motor 63 drives the agitator to rotate, thus achieving the purpose of preparing the medicine. When the second water pump 62 is working, it delivers the medicine to the first chamber through the delivery pipe 61.

[0021] Water from sedimentation chamber 2 is transferred to the first chamber, and flocculant is added simultaneously. The two mix naturally in the small-volume first chamber without the need for high-power agitation, forming a uniformly concentrated solution. The upper part of the partition plate 51 is lower than that of the buffer chamber 5, allowing the mixed solution to smoothly overflow into the second chamber, and then be transported to the inner chamber 21 through the flat pipe 52. This small-space premixing + directional flow design solves the problems of localized flocculant aggregation and insufficient edge concentration in traditional processes, ensuring that the agent and wastewater are fully combined, improving floc formation efficiency, and avoiding uneven conditions of over-flocculation or under-flocculation. The entire mixing process relies on the natural flow of water and convection within the small space, eliminating the need for traditional high-power agitation equipment. There is no mechanical disturbance in the buffer chamber 5, preventing violent agitation from damaging the already formed flocs, ensuring stable floc density, and preventing floc breakage, accelerating particle settling, shortening the sedimentation cycle, and reducing the energy consumption and maintenance costs of agitation equipment.

[0022] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water treatment sedimentation and filtration device, characterized in that, include: Sedimentation tank (1); The sedimentation chamber (2) has an inner chamber (21) installed inside. The upper end of the inner chamber (21) is lower than the upper end of the sedimentation chamber (2). The upper end of the inner chamber (21) is fitted with a barrier part (25) that is connected and fixed to the inner chamber (21). The barrier part (25) is connected and fixed to the sedimentation chamber (2). A drainage component is installed on one side of the sedimentation chamber (2). A buffer chamber (5) is installed on the upper part of one side of the sedimentation chamber (2). A partition plate (51) is installed in the buffer chamber (5) to divide the internal space of the buffer chamber (5) into a first chamber and a second chamber. The upper end of the partition plate (51) is lower than the upper end of the buffer chamber (5). The second chamber is connected to the inner chamber (21). Water lifting device, used to lift water in sedimentation chamber (2) to the first chamber; The dosing device is used to add flocculant into the first chamber.

2. The water treatment sedimentation and filtration device according to claim 1, characterized in that: The water lifting device includes a first water pump (3). The first water pump (3) is installed on the upper surface of the sedimentation tank (1). A suction pipe (31) is installed at the inlet end of the first water pump (3). A first shut-off valve (32) is installed at the outlet end of the first water pump (3). A water delivery pipe (33) is installed at the end of the first shut-off valve (32) away from the first water pump (3). The end of the water delivery pipe (33) away from the first shut-off valve (32) extends into the first chamber.

3. The water treatment sedimentation and filtration device according to claim 1, characterized in that: The dosing device includes a mixing tank (6), and a mixing tank (6) is provided on one side of the sedimentation chamber (2). A support platform (64) is provided on the upper side of the mixing tank (6). A second water pump (62) is installed on the upper surface of the support platform (64). A suction pipe is installed at the inlet end of the second water pump (62). The lower end of the suction pipe extends to the lower part of the mixing tank (6). A delivery pipe (61) is installed at the outlet end of the second water pump (62). The end of the delivery pipe (61) away from the second water pump (62) extends into the first chamber.

4. The water treatment sedimentation and filtration device according to claim 3, characterized in that: A motor (63) is installed on the upper surface of the support platform (64), and an agitator is installed on the output shaft of the motor (63). The lower end of the agitator extends into the mixing tank (6), and a feeding port is provided on the top of the mixing tank (6).

5. A water treatment sedimentation and filtration device according to claim 1, characterized in that: A flat tube (52) is installed on one side of the second chamber. The end of the flat tube (52) away from the second chamber passes through the inner chamber (21) and is connected and fixed to the inner chamber (21).

6. The water treatment sedimentation and filtration device according to claim 1, characterized in that: A bracket (22) is installed on the outer surface of the sedimentation chamber (2). The buffer chamber (5) is connected and fixed to the bracket (22). A drain pipe (23) connected to the inner chamber (21) is installed at the bottom of the sedimentation chamber (2). A drain valve (24) is installed at the end of the drain pipe (23) away from the sedimentation chamber (2).

7. A water treatment sedimentation and filtration device according to claim 1, characterized in that: The drainage component includes a water storage container (4). The sedimentation tank (1) is provided with a water storage container (4) on one side. A drain pipe (42) is installed on the top of the water storage container (4). A second shut-off valve (43) is installed at the end of the drain pipe (42) away from the water storage container (4). A connecting pipe (44) is installed at the end of the second shut-off valve (43) away from the drain pipe (42). The upper surface of the barrier part (25) is recessed downward to form a groove part (26). The end of the connecting pipe (44) away from the second shut-off valve (43) is connected to the groove part (26). A drain valve (41) is installed at the lower part of one side of the water storage container (4).

8. The water treatment sedimentation and filtration device according to claim 1, characterized in that: The sedimentation tank (1) is equipped with a first partition (11) and a second partition (13) that divide the internal space of the sedimentation tank (1) into three sedimentation spaces. The upper end of the first partition (11) is lower than the upper end of the sedimentation chamber (2). An overflow outlet (12) is provided at the upper part of one side of the first partition (11). The upper end of the second partition (13) is lower than the height of the overflow outlet (12).