A sedimentation tank for sewage treatment

Abstract

This utility model relates to a sewage sedimentation tank, specifically a sedimentation tank for sewage treatment, including a tank body, an inlet, an outlet, a sludge collection hopper, and a sludge discharge pipe. The tank body is equipped with a fixed frame and multiple inclined plates fixedly arranged on the fixed frame at an angle. Each inclined plate has a limiting groove and a telescopic mechanism that slides on the limiting groove. This utility model can adjust the length of the inclined plate in real time according to the sewage flow velocity, ensuring that the inclined plate always maintains the optimal angle with the water flow direction, optimizing the water flow path, reducing short-circuiting, and improving sedimentation efficiency. When the sewage flow velocity is high, the inclined plate extends, prolonging the contact time between the sewage and the inclined plate, enhancing the floc settling effect; when the flow velocity is slow, the inclined plate retracts to prevent excessive sludge accumulation on the inclined plate, maintaining the cleanliness and efficiency of the inclined plate. Compared with traditional inclined plate sedimentation tanks, the inclined plates in this design can be flexibly adjusted according to actual working conditions, adapting to changes in different water qualities and quantities, and have stronger versatility and adaptability.

Description

Technical Field

[0001] This utility model relates to a sewage sedimentation tank, specifically a sedimentation tank for sewage treatment. Background Technology

[0002] Sedimentation tanks for wastewater treatment are a type of solid-liquid separation structure commonly used in wastewater treatment. Their main function is to settle suspended solid particles in wastewater by gravity, thereby removing suspended solids, reducing turbidity and organic matter content, and thus achieving preliminary purification of wastewater.

[0003] Currently, sedimentation tanks are mainly divided into four types: horizontal flow type; rectangular type, horizontal flow, suitable for large water volume, vertical flow type; circular or square design, upward flow, small footprint but large depth, radial flow type; circular type, radial flow, suitable for large water volume and mechanical sludge removal, inclined plate (tube) type; containing inclined plates or inclined tubes, utilizing the principle of shallow sedimentation, the water flow is in a laminar state between the inclined plates, the water flow stability is good, which is conducive to the sedimentation process.

[0004] Current inclined plate sedimentation tanks use a fixed design for the inclined plates. Because the length of the inclined plates is fixed and their layout is uniform, when sewage is introduced, it directly impacts the sludge collection hopper at the bottom, creating violent turbulence that spreads upwards to the inclined plate area. This causes the deposited sludge to be stirred up and floated to the surface, blurring the interface between the sludge zone and the clear water zone. This severely interferes with the stable settling of suspended particles and reduces separation efficiency. At the same time, the fixed length of the inclined plates cannot respond to changes in water flow velocity: at high flow velocities, the water does not travel far enough between the inclined plates, easily forming short-circuit flows and resulting in insufficient interception; at low flow velocities, the water stagnates between the inclined plates for too long, leading to local water quality deterioration, and the ineffective resistance generated by the fixed structure increases energy consumption. Utility Model Content

[0005] The purpose of this invention is to provide a sedimentation tank for wastewater treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sedimentation tank for wastewater treatment includes a tank body, an inlet, an outlet, a sludge collection hopper, and a sludge discharge pipe. The tank body is provided with a fixed frame and a plurality of inclined plates that are fixedly arranged on the fixed frame at an angle. Each inclined plate has a limit groove and a telescopic mechanism that slides on the limit groove. One end of the telescopic mechanism is engaged with a drive mechanism for driving the telescopic mechanism to perform telescopic movement. The drive mechanism is fixed to one end of the fixed frame.

[0008] The driving mechanism includes a limiting support mechanism that slides with the telescopic mechanism and an execution mechanism for driving the limiting support mechanism to move obliquely. The execution mechanism is fixed to one end of the fixed frame.

[0009] As described above, the sedimentation tank for wastewater treatment includes a sliding plate disposed on one side of an inclined plate and a groove formed on the sliding plate, with a limit slider provided at the top of the groove.

[0010] As described above, the sedimentation tank for wastewater treatment includes a telescopic mechanism that also includes a fastening connector fixed to one side of the sliding plate. The sliding plate slides on a limiting groove on one side of the inclined plate via a limiting slider, and the total length of each sliding plate gradually decreases.

[0011] As described above, the sedimentation tank for wastewater treatment includes a plurality of guide columns fixed on the fixed frame and a sliding member that slides on the plurality of guide columns simultaneously. The sliding member has a plurality of slots.

[0012] As described above, in a sedimentation tank for wastewater treatment: multiple fastening connectors slide on multiple slots respectively, and the total length of the multiple slots opened on the sliding connectors gradually increases, complementing the length of the sliding plate.

[0013] The sedimentation tank for wastewater treatment described above includes a limiting support mechanism with an opening on one side of the sliding member, and an internally threaded cylinder is fixedly connected to the inner wall of the opening on one side of the sliding member.

[0014] The sedimentation tank for wastewater treatment as described above:

[0015] Compared with existing technologies, the advantages of this invention are: the length of the inclined plate can be adjusted in real time according to the sewage flow rate, so that the inclined plate always maintains the optimal angle with the water flow direction, optimizes the water flow path, reduces short-circuiting, and improves sedimentation efficiency; when the sewage flow rate is fast, the inclined plate is extended to prolong the contact time between the sewage and the inclined plate, enhancing the floc settling effect; when the flow rate is slow, the inclined plate is contracted to avoid excessive accumulation of sludge on the inclined plate, keeping the inclined plate clean and efficient; compared with traditional inclined plate sedimentation tanks, the inclined plate of this design can be flexibly adjusted according to actual working conditions, adapting to changes in different water quality and quantity, and has stronger versatility and adaptability.

[0016] In this utility model, the length of multiple inclined plates gradually decreases after extension, forming a gradient layout, which makes the flow of sewage in the sedimentation tank more uniform. This layout helps to reduce the water flow impact force in the bottom sludge collection hopper area, avoid sludge re-suspension, and improve the sludge concentration effect. At the same time, the gradient inclined plate layout can make the division between the clear water zone and the sludge zone clearer, which is conducive to improving the effluent quality. After the telescopic plates are retracted, their lengths are even, forming a regular sedimentation area. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a sedimentation tank for wastewater treatment.

[0018] Figure 2 This is a schematic diagram of the internal structure of a sedimentation tank used for wastewater treatment.

[0019] Figure 3 This is a schematic diagram of the internal structure of an inclined plate in a sedimentation tank for wastewater treatment after it has been extended.

[0020] Figure 4 This is a schematic diagram of the fixed frame and inclined plate structure in a sedimentation tank for wastewater treatment.

[0021] Figure 5 This is a schematic diagram of the inclined plate, telescopic mechanism, and drive mechanism in a sedimentation tank for wastewater treatment.

[0022] Figure 6 This is a schematic diagram of the inclined plate, telescopic mechanism, and drive mechanism in a sedimentation tank for wastewater treatment from another angle.

[0023] Figure 7 This is a schematic diagram of the inclined plate, telescopic mechanism, and drive mechanism in a sedimentation tank for wastewater treatment after the inclined plate has been extended.

[0024] Figure 8 This is a schematic diagram of the inclined plate, telescopic mechanism, and drive mechanism in a sedimentation tank for wastewater treatment, showing the structure at another angle after the inclined plate is extended.

[0025] Figure 9 This is a disassembled structural diagram of the inclined plate, telescopic mechanism, and drive mechanism in a sedimentation tank for wastewater treatment.

[0026] Figure 10 This is a schematic diagram showing the disassembled structure of the inclined plate and sliding plate in a sedimentation tank for wastewater treatment.

[0027] In the diagram: 1. Pool body; 2. Inlet; 3. Outlet; 4. Sludge hopper; 5. Sludge discharge pipe; 6. Fixed frame; 7. Inclined plate; 8. Limiting groove; 9. Sliding plate; 10. Groove; 11. Limiting slider; 12. Fastening connector; 13. Guide column; 14. Sliding component; 15. Slot; 16. Drive motor; 17. Screw; 18. Internal threaded cylinder. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Please see Figures 1-10As an embodiment of the present utility model, the sedimentation tank for sewage treatment includes a tank body 1, an inlet 2, an outlet 3, a sludge collection hopper 4, and a sludge discharge pipe 5. A fixed frame 6 and a plurality of inclined plates 7 are arranged obliquely on the fixed frame 6. Each inclined plate 7 is provided with a limiting groove 8 and a telescopic mechanism that slides on the limiting groove 8. One end of the telescopic mechanism is equipped with a driving mechanism for driving the telescopic mechanism to perform telescopic movement. The driving mechanism is fixed to one end of the fixed frame 6.

[0030] The driving mechanism includes a limiting support mechanism that slides with the telescopic mechanism and an execution mechanism for driving the limiting support mechanism to move obliquely. The execution mechanism is fixed to one end of the fixed frame 6.

[0031] In this embodiment, sewage is directly discharged into one end of the sludge collection hopper 4 through the inlet 2. The sewage then impacts the inclined side of the sludge collection hopper 4, causing it to flow upwards turbulently between multiple inclined plates 7. At this time, the length of the inclined plate 7 can be extended or retracted by the telescopic mechanism on the inclined plate 7 through the drive mechanism. The length of the inclined plate 7 can be adjusted in real time according to the sewage flow rate, so that the inclined plate 7 always maintains the optimal angle with the water flow direction, optimizes the water flow path, reduces short-circuiting, and improves sedimentation efficiency. When the sewage flow rate is fast, the inclined plate 7 is extended to prolong the contact time between the sewage and the inclined plate 7, enhancing the floc settling effect. When the flow rate is slow, the inclined plate 7 is retracted to prevent excessive accumulation of sludge on the inclined plate 7, keeping the inclined plate 7 clean and efficient.

[0032] In addition, the length of the multiple inclined plates 7 in this sedimentation tank gradually decreases after extension, forming a gradient layout, which makes the flow of sewage in the sedimentation tank more uniform. This layout helps to reduce the water flow impact force in the bottom sludge hopper 4 area, avoid sludge re-suspension, and improve the sludge concentration effect. At the same time, the gradient inclined plate layout 7 can make the division between the clear water zone and the sludge zone clearer, which is conducive to improving the effluent quality. After the telescopic plates are contracted, their lengths are even, forming a regular sedimentation area.

[0033] As a further embodiment of this utility model, the telescopic mechanism includes a sliding plate 9 disposed on one side of the inclined plate 7 and a groove 10 formed on the sliding plate 9, wherein a limit slider 11 is provided at the top of the groove 10.

[0034] In this embodiment, the sliding plate 9 is an extension of the inclined plate 7, and the sliding plate 9 slides on one end of the sliding plate 9 through the groove 10.

[0035] As a further embodiment of this utility model, the telescopic mechanism also includes a fastening connector 12 fixed to one side of the sliding plate 9. The sliding plate 9 slides on the limiting groove 8 on one side of the inclined plate 7 through the limiting slider 11, and the total length of each sliding plate 9 gradually decreases.

[0036] In this embodiment, the length of each sliding plate 9 is different. The length of multiple sliding plates 9 gradually decreases from the direction of the inlet 2 to the direction of the outlet 3, forming a gradient layout. One side of the inclined plate 7 is fixed with a limit slider 11 by bolts, and the limit slider 11 is stably slidably installed on the inclined plate 7.

[0037] As a further embodiment of this utility model, the limiting support mechanism includes a plurality of guide posts 13 fixed on the fixed frame 6 and a sliding member 14 that slides on the plurality of guide posts 13. The sliding member 14 is provided with a plurality of slots 15.

[0038] In this embodiment, multiple guide posts 13 are designed, and multiple grooves are provided on the slider 14. The guide posts 13 pass through the grooves of the slider 14 to support the slider 14.

[0039] As a further embodiment of this utility model, multiple fastening connectors 12 slide on multiple slots 15 respectively, and the total length of the multiple slots 15 opened on the sliding member 14 gradually increases, which is complementary to the length of the sliding plate 9.

[0040] In this embodiment, the total length of the plurality of slots 15 provided on the slider 14 gradually increases, which is complementary to the length of the slider plate 9.

[0041] As a further embodiment of this utility model, the limiting support mechanism also includes an opening on one side of the sliding member 14, and an internally threaded cylinder 18 is fixedly connected to the inner wall of the opening on one side of the sliding member 14.

[0042] In this embodiment, the opening at one end of the slider 14 is a circular groove, and an internally threaded cylinder 18 is fixedly installed on the circular groove.

[0043] As a further embodiment of this utility model, the actuator includes a drive motor 16 fixed on the fixed frame 6 and a screw 17 fixedly connected to the drive motor 16, and the internal threaded cylinder 18 is threadedly connected to the screw 17.

[0044] In this embodiment, when it is necessary to adjust the extension and retraction of the inclined plate 7, the drive motor 16 is started to drive the screw 17 to rotate. The screw 17 drives the internal threaded cylinder 18 to rotate, and then the internal threaded cylinder 18 drives the sliding member 14 to slide. The sliding member 14 serves as a support for multiple sliding plates 9. When the sliding member 14 slides, the position of the sliding plates 9 also changes. When the sliding member 14 descends, the multiple sliding plates 9 slide downwards. Since there is a deviation in the amount of sliding between each sliding plate 9, the multiple sliding plates 9 will eventually slide downwards to different horizontal lines, which can form a gradual layout in the sedimentation tank, making the flow of sewage in the sedimentation tank more uniform. When controlling the sliding member 14 to slide upwards, since the length of the slots 15 on the sliding member 14 is different, the sliding member 14 will first drive the longest sliding plate 9 to move upwards, and gradually drive the longest to the shortest sliding plate 9 to move upwards, so that the lengths of the multiple inclined plates 7 after contraction are even, forming a regular sedimentation area.

[0045] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A sedimentation tank for sewage treatment comprising a tank body (1), a water inlet (2), a water outlet (3), a sludge collector (4) and a sludge discharge pipe (5), characterized in that, The pool body (1) is provided with a fixed frame (6) and a number of inclined plates (7) arranged obliquely on the fixed frame (6). Each inclined plate (7) has a limit groove (8) and a telescopic mechanism that slides on the limit groove (8). One end of the telescopic mechanism is equipped with a drive mechanism for driving the telescopic mechanism to perform telescopic movement. The drive mechanism is fixed to one end of the fixed frame (6). The driving mechanism includes a limiting support mechanism that slides with the telescopic mechanism and an execution mechanism for driving the limiting support mechanism to move obliquely. The execution mechanism is fixed to one end of the fixed frame (6).

2. A sedimentation tank for wastewater treatment according to claim 1, characterized in that, The telescopic mechanism includes a sliding plate (9) disposed on one side of the inclined plate (7) and a groove (10) formed on the sliding plate (9), wherein a limit slider (11) is provided at the top of the groove (10).

3. A sedimentation tank for wastewater treatment according to claim 2, characterized in that, The telescopic mechanism also includes a fastening connector (12) fixed to one side of the sliding plate (9). The sliding plate (9) slides on the limiting groove (8) on one side of the inclined plate (7) via a limiting slider (11). The total length of each sliding plate (9) gradually decreases.

4. The sedimentation basin for sewage treatment according to claim 3, characterized in that The limiting support mechanism includes multiple guide posts (13) fixed on the fixed frame (6) and sliding members (14) that slide on the multiple guide posts (13) at the same time. Multiple slots (15) are provided on the sliding members (14).

5. The sedimentation basin for sewage treatment according to claim 4, characterized in that Multiple fastening connectors (12) slide on multiple slots (15), and the total length of the multiple slots (15) opened on the sliding member (14) gradually increases, which is complementary to the length of the sliding plate (9).

6. The sedimentation tank for sewage treatment according to claim 5, wherein The limiting support mechanism also includes an opening on one side of the sliding member (14), and an internally threaded cylinder (18) is fixedly connected to the inner wall of the opening on one side of the sliding member (14).

7. The sedimentation basin according to claim 6, characterized in that The actuator includes a drive motor (16) fixed on the fixed frame (6) and a screw (17) fixedly connected to the drive motor (16), and the internal threaded cylinder (18) is threadedly connected to the screw (17).

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