CN209917455U - High-efficient vertical flow sedimentation tank with filtering capability - Google Patents

Abstract

The utility model discloses a high-efficiency vertical flow sedimentation tank with filtering function, comprising a tank body, a water inlet pipe, a central water distribution pipe, a conical reflector, a filter layer for filtering particles in clarified water after sedimentation, a central water distribution pipe and The conical reflectors are installed in the pool body and are located in the horizontal center. The upper end of the central water distribution pipe is connected to the outlet of the water inlet pipe, and the lower end of the central water distribution pipe is located above the conical reflector. The horizontal filter layer is installed in the tank body and located between the overflow weir and the conical reflector, and the central water distribution pipe passes through the vertical central through hole of the filter layer. The utility model adds a filter layer on the basis of the original vertical flow sedimentation tank, so that the particle flocculation and sedimentation effect is better, the possibility of the suspended solids in the sewage flowing out with the water is reduced, the impact load resistance of the sedimentation tank body is improved, and the It improves the sedimentation effect of suspended solids in water and optimizes the function of vertical flow sedimentation tank.

Description

Efficient vertical flow sedimentation tank with filtration function

technical field

The utility model relates to a vertical flow sedimentation tank for sewage treatment, in particular to a high-efficiency vertical flow sedimentation tank with a filtering function.

Background technique

In the sewage treatment process, the sedimentation tank is divided into three types: advection, radial and vertical flow according to the direction of water flow. Among them, the vertical flow sedimentation tank has a small footprint, easy sludge discharge, and high sludge sedimentation efficiency. It is often used in small sewage treatment plant. The plane of the vertical flow sedimentation tank can be square, circular or polygonal. The sewage enters from top to bottom from the center pipe located in the center of the tank, and is slowly and evenly distributed in the tank after being reflected by the conical reflector from the lower end of the center pipe. On the cross section of the pond, it rises slowly, the suspended matter settles into the conical sedimentation bucket at the bottom of the pond, and the clarified water flows out from the overflow weir around the pond. One side of the pool body is provided with a mud discharge pipe against the wall of the pool. According to the engineering situation, static pressure mud discharge or dynamic mud discharge can be considered.

The sedimentation effect of the above-mentioned traditional vertical flow sedimentation tank is acceptable, but the anti-shock load capacity is poor. Since the direction of water flow is opposite to the direction of particle sedimentation, if the sedimentary particles are extremely small, the sedimentation velocity of the particles is lower than the rising velocity of the water flow, and the particles are easily moved with the water flow. The direction of direct flow out, and the vertical flow sedimentation method is not strong enough to adapt to the impact of water volume, so the sedimentation effect is not good.

Utility model content

The purpose of the present utility model is to provide a high-efficiency vertical flow sedimentation tank with filtering function in which the sedimented particles will not overflow in order to solve the above-mentioned problems.

The utility model realizes the above-mentioned purpose through the following technical solutions:

A high-efficiency vertical flow sedimentation tank with filtering function, including a tank body, a water inlet pipe, a central water distribution pipe and a conical reflection plate, the central water distribution pipe and the conical reflection plate are both installed in the tank body and located in the tank body. At the horizontal center position, the upper end of the central water distribution pipe is connected to the outlet of the water inlet pipe, the lower end of the central water distribution pipe is located above the conical reflector, and the upper part of the pool body is provided with an overflow weir, so the The high-efficiency vertical flow sedimentation tank also includes a filter layer for filtering particles in the clarified water after precipitation, and the lateral filter layer is installed in the tank body and located between the overflow weir and the conical reflector, The central water distribution pipe passes through the vertical central through hole of the filter layer.

In the above structure, the tank body, the water inlet pipe, the central water distribution pipe, the conical reflector and the overflow weir are all conventional components of the traditional vertical flow sedimentation tank; the filter layer is used to filter the particles in the water after sedimentation. The size can be made of conventional filter materials. For example, multiple layers of filter gauze or filter screen plates are used together, and the gap and thickness are determined according to the needs; effect of effect.

In order to facilitate quick disassembly and assembly of the filter layer, the top of the filter layer is connected with a movable bead, and the movable bead is installed on the inner wall of the pool body and can be quickly disassembled.

Specifically, the inner wall of the pool is provided with a groove, and the movable bead has elasticity and its two ends are placed in the groove.

The beneficial effects of the present utility model are:

The utility model adds a filter layer on the basis of the original vertical flow sedimentation tank, so that the sedimentation area of the tank body is increased, and the water flow speed is reduced, thereby improving the fluid state of the water body in the tank body, making the particle flocculation and sedimentation effect better, and reducing the amount of sewage in the sewage. The possibility of the suspended solids flowing out with the water improves the shock load resistance of the sedimentation tank body, enhances the sedimentation effect of the suspended solids in the water, and optimizes the function of the vertical flow sedimentation tank.

Description of drawings

FIG. 1 is a schematic front view of the structure of the high-efficiency vertical flow sedimentation tank with filtering function according to the present invention, and the internal structure is shown in the figure.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1, the high-efficiency vertical flow sedimentation tank with filtering function of the present invention includes a tank body 3, a water inlet pipe 1, a central water distribution pipe 4, a filter layer 6 and a conical reflector 7, and the central water distribution pipe 4 and The conical reflectors 7 are installed in the pool body 3 and located at the horizontal center position. The upper end port or the upper end pipe wall of the central water distribution pipe 4 is connected to the outlet of the water inlet pipe 1, and the lower end of the central water distribution pipe 4 is located at the bottom of the conical reflector 7. Above, the upper part of the pool body 3 is provided with an overflow weir 5, and the overflow weir 5 is a conventional water outlet part, and the lateral filter layer 6 used to filter the particles in the clarified water after precipitation is installed in the pool body 3 and is located in the overflow weir. 5 and the conical reflector 7, the central water distribution pipe 4 passes through the vertical central through hole of the filter layer 6, the top of the filter layer 6 is connected with the movable bead 2, and the movable bead 2 is installed on the inner wall of the pool body 3 and can be connected. For quick disassembly and assembly, specifically, the inner wall of the pool body 3 is provided with a groove, and the movable bead 2 has elasticity and its two ends are placed in the groove.

Fig. 1 also shows the conical sedimentation bucket 9 and the sludge discharge pipe 8 at the inner bottom of the tank body 7, which are conventional structures of a traditional vertical flow sedimentation tank.

As shown in Figure 1, during operation, sewage enters the pool body 3 from the water inlet pipe 1 and flows out to the conical reflector 7 through the central water distribution pipe 4, and is slowly and evenly distributed in the pool body 3 after being reflected by the conical reflector 7. The cross section rises slowly, the filter layer 6 realizes the filtering function, the particles in the clarified water after the precipitation are filtered out, and finally the clarification level flows to the overflow weir 5 and then discharged to the outside of the pool 3, and the suspended matter settles into the pool 3 In the conical sedimentation bucket 9 at the inner bottom, the sewage precipitation and purification process is completed.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and are not intended to limit the technical solutions of the present utility model. As long as the technical solutions that can be realized on the basis of the above-mentioned embodiments without creative work, all should be regarded as falling within the scope of the present invention. within the scope of protection of utility model patents.

Claims (3)

1. A high-efficiency vertical flow sedimentation tank with a filtering function, comprising a tank body, a water inlet pipe, a central water distribution pipe and a conical reflection plate, and the central water distribution pipe and the conical reflection plate are all installed in the tank body and is located in the horizontal center position, the upper end of the central water distribution pipe is connected to the outlet of the water inlet pipe, the lower end of the central water distribution pipe is located above the conical reflector, and the upper part of the pool body is provided with an overflow weir It is characterized in that: the high-efficiency vertical flow sedimentation tank also includes a filter layer for filtering particles in the clarified water after precipitation, and the horizontal filter layer is installed in the tank body and located in the overflow weir and the cone. Between the shaped reflectors, the central water distribution pipe passes through the vertical central through hole of the filter layer. 2. the high-efficiency vertical flow sedimentation tank with filtering function according to claim 1, is characterized in that: the top of described filter layer is connected with movable bead, and described movable bead is installed on the inner wall of described tank body and can Quick disassembly. 3. the high-efficiency vertical flow sedimentation tank with filtering function according to claim 2, is characterized in that: the inner wall of the tank is provided with a groove, and the movable bar has elasticity and its two ends are placed in the groove Inside.

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