Method and device for controlling intermittent operation of stirring device of sludge storage pool

Abstract

The invention provides a method and a device for controlling intermittent operation of a stirring device of a sludge storage pool. A plurality of stress sensors are arranged at different positions at the bottom of the sludge storage pool, each tress sensor is arranged in a waterproof jacket and connected with a data acquiring device, and the data acquiring device and the stirring device in the sludge storage pool are both connected with a programmable logic controller. The stress sensors detect stress at the different positions of the bottom of the sludge storage pool in real time and inputs detected stress data into the data acquiring device for processing, the data acquiring device inputs processed stress data into the programmable logic controller, if a detected largest stress value islarger than a preset value, the stirring device is controlled to be started and operate automatically, and if the detected largest stress value is smaller than the preset value, the stirring device is controlled to stop operating automatically. By means of the method and the device for controlling the intermittent operation of the stirring device of the sludge storage pool, the operation of the stirring device in the sludge storage pool is controlled according to stress changes, and the intermittent operation of the stirring device is achieved according to the sludge accumulation state.

Description

technical field [0001] The invention relates to a method and a device for controlling intermittent operation of stirring equipment in a sludge storage tank during sewage treatment, and belongs to the technical field of sewage treatment equipment control. Background technique [0002] In the sewage treatment industry, various stirring equipment are commonly used, such as mixing and stirring equipment for the dissolution and mixing of various coagulants and disinfectants, and chemical mixing or flocculation reaction mixing equipment for deep tanks. In addition, stirring equipment will also be installed in the sludge storage tank, one of the commonly used structures in the sewage treatment industry, to prevent the continuous accumulation of sludge and reduce the effective volume of the tank. [0003] At present, the commonly used control method for the above-mentioned stirring equipment is the time control method, that is, the running time of the motor is set through the PLC (p...

AI Technical Summary

Problems solved by technology

This method is more suitable for mixing and stirring equipment and flocculation reaction stirring equipment, etc., but it is still not practical for stirring equipment in sludge storage tanks, which is due to the instability of sewage treatment systems, especially the instability of industrial wastewater volume and water quality , The time variation coefficient of sludge output and composition is also large, and the method of using time to control the mixing equipment in the sludge storage tank will cause unnecessary operation of the mixing equipment and waste of power resources

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