Sloping plate device for removing suspended particles in rainwater storage tank and application thereof

Abstract

The invention relates to a sloping plate device for removing suspended particles in a rainwater storage tank and application thereof. The sloping plate device comprises a measuring unit, a sloping plate, a power unit and an automatic control unit, wherein the measuring unit is arranged in the rainwater storage tank and used for measuring the average particle size, the volume concentration and the mass concentration of the suspended particles in initial rainwater stored in the rainwater storage tank; the sloping plate is arranged in the rainwater storage tank, can rotate around the horizontal axis to adjust the inclination angle and is used for improving the sedimentation and removal efficiency of the suspended particles in the initial rainwater; the power unit is connected with the sloping plate and used for driving the sloping plate to rotate; the automatic control unit is connected with the power unit and the measuring unit and used for adjusting the inclination angle of the sloping plate through the power unit according to the measuring result of the measuring unit. Compared with the prior art, the sloping plate device is compact in structure and capable of effectively removing the suspended particles in the initial rainwater or mixed waste water, and the maximum removal rate of the suspended particles and chemical oxygen demand both exceed 80 percent.

Description

technical field [0001] The invention relates to a pollution removal technology in the field of municipal drainage, in particular to a slant plate device for removing suspended particles in a rainwater storage tank and an application thereof. Background technique [0002] Initial rainwater pollution is an important pollution source for the decline of urban surface water environment quality, and it is also a common problem in cities at home and abroad. For this reason, a large number of studies on initial rainwater pollution control have been carried out at home and abroad. Among them, rainwater storage tanks are an effective engineering measure to reduce the problem of initial rainwater overflow pollution. It has been widely used abroad. The first rainwater storage tank was put into use in Shanghai, and by the end of 2014 there were about 30 in China. The construction of the existing rainwater storage tank is limited by many factors such as project cost, municipal land, geol...

AI Technical Summary

Problems solved by technology

However, this hydraulic particle separator has the following disadvantages: First, it is designed for rainwater pretreatment and lacks flow control at the water inlet. It leads to unbalanced water flow, which affects the use effect; second, it lacks an automatic control unit, and the operation is manual; third, the rotation control of the swash plate lacks an effective and precise control method, and the effect is not ideal

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