An inclined plate advection sedimentation tank for backwashing and dredging

Abstract

The invention discloses an inclined plate advection sedimentation tank for backwashing and dredging, comprising: a water inlet area, a water outlet area, a sedimentation area between the water inlet area and the water outlet area, and a slant plate installed in the sedimentation area, wherein : The bottom of the water inlet area is provided with a water inlet channel connected to the sedimentation area; an overflow port is provided between the sedimentation area and the water outlet area; the bottom of the sedimentation area is provided with a filter head and connected with the filter head for An air supply pipeline for delivering high-pressure air to the filter head and a water delivery pipeline for delivering high-pressure water flow to the filter head; the inclined plate is located above the filter head, and several through holes are arranged on the inclined plate. The invention combines the characteristics of higher processing load and stable operation of the advection sedimentation tank with the advantages of small footprint and good suspension separation effect of the inclined plate sedimentation tank, effectively improves the settlement effect of the sedimentation area, and reduces the adhesion of sludge The degree increases the service life of the inclined plate.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an inclined plate advection sedimentation tank for backwashing and dredging. Background technique [0002] As a common structure for separating suspended solids, sedimentation tanks can generally be divided into four types: advection type, inclined plate (tube) type, vertical flow type and radial flow type. The advection sedimentation tank has a simple structure, a large amount of treated water, strong adaptability to water volume and temperature changes, convenient construction, low cost, and is applicable to large, medium, and small sewage treatment projects, but it occupies a large area and encounters suspended solids. Wastewater with higher content has limited separation effect. The inclined plate sedimentation tank is to place a number of inclined plates at a certain angle with the water surface in the sedimentation tank. When the water flows through, the solid sus...

AI Technical Summary

Problems solved by technology

The inclined plate sedimentation tank has the advantages of large sedimentation area, good sedimentation effect, short residence time, and small footprint, but the inclined plate is difficult to clean and difficult to maintain and manage.

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