A vertical flow and inclined plate combined folding type sedimentation tank device

Abstract

This utility model relates to the technical field of sedimentation tank equipment, specifically to a folded sedimentation tank equipment combining vertical flow and inclined plates. It includes a tank body, a first baffle plate, a second baffle plate, and several sludge collection pipes disposed inside the tank body, and an inlet and an outlet disposed on the side wall of the tank body. The first and second baffle plates are parallel and spaced apart, dividing the interior of the tank body into three areas: an inlet area near the inlet, a sedimentation area in the middle, and an outlet area near the outlet. Inclined plate units are disposed within the sedimentation area. Through the combined design of vertical flow and inclined plates, the residence time of sewage in the tank body is effectively extended, increasing the sedimentation area and improving the sewage treatment effect of the folded sedimentation tank equipment. Simultaneously, combined with the unique folded structure, the footprint of the folded sedimentation tank equipment can be reduced, increasing its sewage treatment capacity and enabling it to meet the needs of large-scale sewage treatment.

Description

Technical Field

[0001] This utility model relates to the technical field of sedimentation tank equipment, and in particular to a folded sedimentation tank equipment that combines vertical flow and inclined plates. Background Technology

[0002] Currently, municipal sewage often contains a large amount of suspended solids such as sand, sludge, and various types of garbage. If these suspended solids are not effectively removed in a timely manner, it will adversely affect the treatment effect of subsequent sewage treatment processes, making it difficult for the treated water to meet discharge standards. Sedimentation tanks are important infrastructure in the sewage treatment industry; existing sedimentation tanks are classified according to the direction of sewage flow, such as horizontal flow, radial flow, vertical flow, and inclined plate types; among them, vertical flow sedimentation tanks, also known as vertical sedimentation tanks, are sedimentation tanks where wastewater flows vertically. Water enters the tank from top to bottom through an inlet pipe located in the center of the tank. An umbrella-shaped baffle below the pipe ensures that the wastewater is evenly distributed in the tank and then slowly rises along the entire cross-section. Suspended solids settle into the conical sludge hopper at the bottom of the tank, and clarified water flows out from the perimeter of the tank along the overflow weir. Common vertical flow sedimentation tanks have significant advantages such as small footprint, convenient sludge removal, and simple management. However, due to the limitations of the tank structure design, the diameter of vertical flow sedimentation tanks should not be too large, which directly leads to relatively low wastewater treatment efficiency and capacity. Furthermore, since vertical flow sedimentation tanks are less adaptable to water volume fluctuations and water temperature changes, their operational stability will be greatly affected in actual operation when faced with water volume fluctuations or abnormal water temperature, which further limits the application of vertical flow sedimentation tanks in complex working conditions.

[0003] Patent application number CN202122664084.7 discloses a high-efficiency corrugated inclined plate rectifying vertical flow composite sedimentation tank. This sedimentation tank can reduce the sedimentation height and increase the sedimentation area through corrugated inclined plates, thereby enhancing the sedimentation effect and reducing the amount of suspended solids in the effluent. Furthermore, the central guide tube evenly distributes water, and the laminar flow effect of the corrugated inclined plates ensures uniform and steady laminar flow of wastewater, achieving a good static sedimentation effect and thus improving the treatment effect and efficiency of the sedimentation tank. However, the structure of this sedimentation tank is relatively complex, which increases its construction and subsequent maintenance costs. Moreover, the sedimentation tank's adaptability to shock loads and temperature changes is insufficient, making it difficult to meet the operational needs under complex conditions such as large fluctuations in water volume and quality, and abnormal temperatures.

[0004] This invention provides a folded sedimentation tank device combining vertical flow and inclined plates to solve the problems of low treatment efficiency and capacity, and insufficient adaptability to different water volumes and qualities in existing vertical flow sedimentation tanks. Utility Model Content

[0005] The purpose of this invention is to provide a folded sedimentation tank device that combines vertical flow and inclined plates, in order to solve the problems of low treatment efficiency and capacity of existing vertical flow sedimentation tanks, and insufficient adaptability to different water volumes and qualities.

[0006] The technical solution of this utility model is: a folded sedimentation tank device combining vertical flow and inclined plate, including a tank body, a first water-blocking baffle, a second water-blocking baffle, and a number of sludge collection pipes arranged inside the tank body, and an inlet and an outlet arranged on the side wall of the tank body.

[0007] The first water-blocking baffle is parallel to the second water-blocking baffle and is spaced apart, dividing the interior of the pool into three areas: the inlet area near the inlet, the middle sedimentation area, and the outlet area near the outlet.

[0008] The first water-blocking baffle is connected to the top of the pool body, and the second water-blocking baffle is connected to the bottom of the pool body, so that the bottom of the water inlet area is connected to the bottom of the sedimentation area, and the upper part of the sedimentation area is connected to the upper part of the water outlet area.

[0009] Inclined plate units are provided in the sedimentation zone.

[0010] Preferably, several sludge collection pipes are arranged at the bottom of the pool, and at least one sludge collection pipe is arranged in both the sedimentation zone and the effluent zone.

[0011] Preferably, an inclined plate purge pipe is provided in the sedimentation zone; the inclined plate purge pipe is located below the inclined plate unit.

[0012] Preferably, the bottom of the pool is designed in a cone shape.

[0013] Preferably, a sewage distribution pipe is also provided inside the water inlet area; the input end of the sewage distribution pipe is connected to the water inlet.

[0014] Preferably, a weir plate is provided in the water outlet area; one end of the weir plate is connected to the side wall of the pool body and is located below the water outlet; the other end of the weir plate is higher than the water outlet.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] (1) The present invention provides a folded sedimentation tank device combining vertical flow and inclined plates. The folded sedimentation tank device effectively extends the residence time of sewage in the tank body and increases the sedimentation area by combining vertical flow and inclined plates, thereby improving the sewage treatment effect of the folded sedimentation tank device. At the same time, combined with the unique folded structure, it can further reduce the footprint of the folded sedimentation tank device while ensuring the excellent treatment effect of the folded sedimentation tank device, thereby improving the sewage treatment capacity of the folded sedimentation tank device and enabling it to meet the needs of large-scale sewage treatment. The inclined plate purge pipe can clean the sludge on the inclined plate unit in time, ensuring the sedimentation effect of the inclined plate unit, so that the folded sedimentation tank device can still maintain good sedimentation performance when facing large impact loads. The sewage distribution pipe can evenly distribute sewage, further enhancing the adaptability of the folded sedimentation tank device to different water quality and quantity, and improving the operational stability of the folded sedimentation tank device. It solves the problems of low treatment efficiency and treatment capacity of existing vertical flow sedimentation tanks and insufficient adaptability to different water quantities and qualities in the prior art. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a structural schematic diagram of the folded sedimentation tank equipment combining vertical flow and inclined plate as described in this utility model;

[0019] Figure 2 This is a structural schematic diagram of the folded sedimentation tank equipment combining vertical flow and inclined plate as described in this utility model;

[0020] Figure 3 This is a structural schematic diagram of the folded sedimentation tank equipment combining vertical flow and inclined plate as described in this utility model;

[0021] The components are: 1. Pool body; 2. Water baffle; 21. First water baffle; 22. Second water baffle; 3. Inlet; 31. Sewage distribution pipe; 4. Outlet; 41. Outlet weir; 5. Inlet zone; 6. Sedimentation zone; 7. Outlet zone; 8. Sludge collection pipe; 9. Inclined plate unit; 10. Inclined plate purging pipe. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to specific embodiments:

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "side", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] A folded sedimentation tank device combining vertical flow and inclined plates includes a tank body 1 formed by side walls, a bottom wall, and a tank top; the tank body 1 can be manufactured as a reinforced concrete structure; alternatively, the tank body 1 can also be manufactured from materials such as corrosion-resistant carbon steel and stainless steel, depending on different requirements. Figure 1As shown, the side wall of the tank 1 is provided with an inlet 3 and an outlet 4. Inside the tank 1, there are several sludge collection pipes 8 and two baffles 2, namely the first baffle 21 and the second baffle 22. The first baffle 21 is located near the inlet 3, and the second baffle 22 is spaced apart from and parallel to the first baffle 21. The first baffle 21 and the second baffle 22 divide the interior of the tank 1 into three areas: an inlet area 5 near the inlet 3, a sedimentation area 6 in the middle, and an outlet area 7 near the outlet 4. This partitioned design allows sewage to flow along a specific path within the tank 1, helping to reduce the tank's structure and volume, and decrease its floor space, while improving the sedimentation effect. The first baffle... Plate 21 is connected to the top of tank body 1, i.e., connected to the top of the tank. The second baffle plate 22 is connected to the bottom of tank body 1, i.e. connected to the bottom wall of tank body 1. This connects the bottom of the inlet zone 5 with the bottom of the sedimentation zone 6, and the upper part of the sedimentation zone 6 with the upper part of the outlet zone 7, forming a unique water flow channel combining vertical flow and inclined plate. This allows the sewage entering the tank body 1 from the inlet 3 to first flow into the inlet zone 5, and then from the bottom of the inlet zone 5 into the sedimentation zone 6, where sedimentation is carried out. The treated supernatant flows from the upper part of the sedimentation zone 6 into the outlet zone 7, where further sedimentation takes place. Finally, when the water level in the outlet zone 7 reaches a certain height, the supernatant in the outlet zone 7 is discharged from the outlet 4. The sludge settled at the bottom of the tank body 1 flows into the sludge collection pipe under suction and is discharged. An inclined plate unit 9 is also provided in the sedimentation zone 6 to increase the sedimentation area and improve the sedimentation efficiency in the sedimentation zone 6. Several sludge collection pipes 8 are installed at the bottom of the tank 1 to collect the settled sludge and other suspended matter; and at least one sludge collection pipe 8 is required in both the sedimentation zone 6 and the effluent zone 7 to discharge the deposited sludge and other suspended matter. In actual operation, the sedimentation and sludge collection effect in the tank can be controlled by adjusting the number and height of the sludge collection pipes 8, as well as the height and angle of the inclined plate unit 9, to achieve the best sedimentation effect. In other embodiments, the bottom of the tank 1 can also be designed in a cone shape; such as... Figure 2 , Figure 3 As shown, the cone-shaped bottom of the pool 1 is more conducive to the concentration and discharge of suspended matter such as sludge, allowing the sludge to enter the sludge collection pipe 8 more smoothly and improving the sludge collection efficiency.

[0025] An inclined plate purge pipe 10 is also provided in the sedimentation zone 6; the inclined plate purge pipe 10 is located below the inclined plate unit 9; the inclined plate purge pipe 10 is used to purge the inclined plate unit 9 when necessary to prevent sludge from accumulating on the inclined plate unit 9 and to ensure the sedimentation effect of the inclined plate unit 9.

[0026] The inlet zone 5 is also equipped with a sewage distribution pipe 31. The inlet end of the sewage distribution pipe 31 is connected to the inlet 3, which is used to evenly distribute the sewage entering from the inlet 3 into the inlet zone 5, so as to avoid the local concentration of sewage being too high or too low in the inlet zone 5. This is beneficial to the subsequent sedimentation treatment and can effectively reduce the requirements of the folded sedimentation tank equipment on the sewage quality, and improve the adaptability of the folded sedimentation tank equipment to different water volumes and qualities.

[0027] The water outlet zone 7 is equipped with a water outlet weir plate 41. One end of the water outlet weir plate 41 is connected to the side wall of the pool body 1 and is located below the water outlet 4. The other end of the water outlet weir plate 41 is higher than the water outlet 4. The water outlet weir plate 41 can keep the water level in the water outlet zone 7 stable, ensuring uniform and stable water output. It also helps to further intercept a small amount of suspended matter that may be carried out with the water flow, thereby improving the quality of the water output.

[0028] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A folded sedimentation tank device combining vertical flow and inclined plates, characterized in that, Includes a pool body (1), a first water-blocking baffle (21), a second water-blocking baffle (22) set inside the pool body (1), several sludge collection pipes (8), and an inlet (3) and an outlet (4) set on the side wall of the pool body (1). The first water baffle (21) is parallel to the second water baffle (22) and is spaced apart, dividing the interior of the pool (1) into three areas: the inlet area (5) near the inlet (3), the sedimentation area (6) in the middle, and the outlet area (7) near the outlet (4). The first water-blocking baffle (21) is connected to the top of the pool body (1), and the second water-blocking baffle (22) is connected to the bottom of the pool body (1), so that the bottom of the water inlet area (5) is connected to the bottom of the sedimentation area (6), and the upper part of the sedimentation area (6) is connected to the upper part of the water outlet area (7). An inclined plate unit (9) is provided in the sedimentation zone (6).

2. The folded sedimentation tank equipment combining vertical flow and inclined plates according to claim 1, characterized in that: Several sludge collection pipes (8) are provided at the bottom of the pool body (1), and at least one sludge collection pipe (8) is provided in both the sedimentation zone (6) and the effluent zone (7).

3. The folded sedimentation tank equipment combining vertical flow and inclined plates according to claim 2, characterized in that: An inclined plate purge pipe (10) is provided in the sedimentation zone (6); the inclined plate purge pipe (10) is located below the inclined plate unit (9).

4. The folded sedimentation tank equipment combining vertical flow and inclined plates according to claim 2, characterized in that: The bottom of the pool (1) is designed in a cone shape.

5. The folded sedimentation tank equipment combining vertical flow and inclined plates according to claim 2, characterized in that: The water inlet area (5) is also equipped with a sewage distribution pipe (31); the input end of the sewage distribution pipe (31) is connected to the water inlet (3).

6. The folded sedimentation tank equipment combining vertical flow and inclined plates according to claim 2, characterized in that: A weir plate (41) is provided in the water outlet area (7); one end of the weir plate (41) is connected to the side wall of the pool body (1) and is located below the water outlet (4); the other end of the weir plate (41) is higher than the water outlet (4).

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