Online monitoring device and method for mechanical acceleration clarification tank

Abstract

The invention discloses an online monitoring device and method for a mechanical acceleration clarification tank, and the device comprises a flowmeter and a turbidity meter which are arranged at the inlet of the clarification tank, a turbidity meter is arranged at the outlet of the clarification tank, a high-definition camera and a sludge level meter are arranged in a clear water area, a sludge concentration meter is arranged in a primary mixing and reaction area, and a high-definition camera and a sludge concentration meter are arranged in a secondary mixing and reaction area. On-line data and information are accessed to a pretreatment on-line monitoring system to guide and adjust the dosage at the inlet of the clarification tank and the sludge discharge period at the bottom, so that the effluent turbidity of the clarification tank is stabilized in a standard range. After the device is applied, the problems that the effluent quality cannot reach the standard and fluctuates due to hysteresis, blindness and randomness of operation control of the clarification equipment can be solved, normal operation of subsequent equipment is ensured, the operation economy and stability of the equipment can be greatly improved, and the device has good economic and environmental protection benefits.

Description

technical field [0001] The invention relates to coagulation and clarification equipment for water treatment in a thermal power plant, in particular to an on-line monitoring device and method for a mechanical acceleration clarification tank. Background technique [0002] Coagulation and clarification treatment is the first treatment process of the power plant boiler feed water treatment system. Its purpose is to remove hardness, alkalinity, organic matter, microorganisms, colloids, suspended solids, and sand in raw water through coagulation, flocculation, and clarification processes. and other substances. At present, coagulation and clarification equipment generally have poor operation results, and the effluent water quality is poor or up to standard but still affects the normal operation of subsequent equipment, and there is no effective monitoring method. [0003] Most thermal power plants in China are equipped with mechanically accelerated clarifiers, and most of the clar...

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Problems solved by technology

[0004] In order to overcome the problems existing in the operation of the above-mentioned existing coagulation and clarification equipment, the purpose of the present invention is to provide a mechanically accelerated clarifier online monitoring device and method to solve the hysteresis, blindness and randomness of the clarifier operation control. Timely control of the amount of dosing and sludge discharge caused by the long-term operation of the clarifier, the water quality of the effluent is not up to standard

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