High-efficiency feedwater coagulating sedimentation pool

Abstract

The invention relates to a high effective water supplying coagulation sedimentation tank. The invention consists of a cylindrical mixing device with adjustable speed and amount, a coagulation device with an adjustable grid space and a sedimentation device of a close-distance slant plate with an adjustable obliquity. An adjusting gate is arranged on a water inlet and a water outlet of the cylindrical mixing device with adjustable speed and amount and an adjusting and controlling device is arranged above the adjusting gate to be used for adjusting the water amount and flow of the water inlet and the water outlet to gain the best water-drug mixing effect. The space of coagulation grids and the obliquity of the close-distance slant plate are both adjustable. The invention solves the inadaptive problem that due to the unchange of parameters of the mixing device, the coagulation device and the sedimentation device, water amount of the coagulation sedimentation tank is changed, therefore the coagulation sedimentation tank of a water supply treatment plant can adjust the parameters of the mixing device, the coagulation device and the sedimentation device according to the change of water amount during water-supply working status.

Description

technical field [0001] The patent of the invention belongs to the technical field of surface water supply treatment and is applicable to all surface water supply treatment plants. Background technique [0002] In the prior art, there are various forms of mixing, flocculation, and sedimentation processes in the coagulation-sedimentation tanks of surface water supply plants, but the processing parameters in the three-part process equipment of mixing, flocculation, and sedimentation in the coagulation-sedimentation tanks of surface water plants in the past They are all designed to be fixed at full load. If the operating load changes, the three parts of the process equipment, such as the flow rate of the inflow and outflow of the drum mixing device, the distance between the grids of the flocculation grid device, and the dense pitch inclined plate The sedimentation inclination of the device cannot be adjusted with the change of the operating load. Once the coagulation and sedimen...

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Problems solved by technology

[0002] In the prior art, the mixing, flocculation, and sedimentation processes in the coagulation-sedimentation tank of the surface water supply plant have various forms, but the processing parameters in the three-part process equipment of the mixing, flocculation, and sedimentation process in the coagulation-settling tank of the surface water plant in the past They are all designed to be fixed at full load. If the operating load changes, the three parts of the process equipment, such as the flow rate of the inflow and outflow of the drum mixing device, the distance between the grids of the flocculation grid device, and the dense pitch inclined plate The sedimentation inclination of the device cannot be adjusted with the change of operating load. Once the coagulation and sedimentation tank cannot process water at full capacity, the treated water quality will not meet the required standards; out of control phenomenon

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