Multilayer bevel-plate sedimentation device with variable interval and variable flow direction

Abstract

The invention relates to a multilayer bevel-plate sedimentation device with a variable interval and a variable flow direction, belonging to the field of water treatment. In the multilayer bevel-plate sedimentation device, bevel-plate components with different intervals are arranged in layers; the number of layers is three or more than three; the intervals of the bevel-plate components at a bottom layer are maximum; the intervals of the bevel-plate components at middle layers are gradually reduced from bottom to top; the intervals of the bevel-plate components at a top layer are minimum; an included angle between each layer of the bevel-plate components and a horizontal plane is 60-degree; the bevel-plate components at two adjacent layers are arranged along opposite directions; and the bevel-plate components at each layer are same in height within a scope of 300-500mm. The multilayer bevel-plate sedimentation device is excellent in draining effect, is capable of smoothly disposing spoil and avoiding blocking and is high in adaptability for various water qualities of surface water. A draining effect is below 2NTU. The multilayer bevel-plate sedimentation device is suitable for the field of water treatment.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a multi-layer, variable-pitch, variable-flow, and direction inclined-plate settling equipment. Background technique [0002] At present, in the field of water treatment, inclined plate (or inclined tube) sedimentation tanks are widely used, and they are all developed based on shallow pond theory. The spacing shortens the precipitation distance and increases the precipitation area, which can improve the particle removal efficiency. However, in the actual operation process, there are often some problems. The tiny floc particles are easy to leak from the top of the inclined plate with the water flow, which is mainly caused by the buoyancy of the water and the inertia of the tiny floc particles. When the distance between the inclined plates is small, the sedimentation efficiency is improved, but when the turbidity of the raw water is high, it is easy to cause the inclined pl...

AI Technical Summary

Problems solved by technology

However, in the actual operation process, there are often some problems. The tiny floc particles are easy to leak from the top of the inclined plate with the water flow, which is mainly caused by the buoyancy of the water and the inertia of the tiny floc particles.

When the distance between inclined plates is small, the sedimentation efficiency is improved, but when the turbidity of raw water is high, it is easy to cause blockage of inclined plates (inclined pipes)

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