Device for circularly cleaning and dissolving chemicals and method for circularly cleaning and dissolving chemicals

Abstract

The invention provides a device for circularly cleaning and dissolving chemicals and a method for circularly cleaning and dissolving chemicals. The device comprises a chemicals dissolving unit, a cleaning fluid primary processing unit, a cleaning fluid storage unit and a cleaning fluid secondary processing unit which are connected in sequence, the cleaning fluid secondary processing unit is further connected with the chemicals dissolving units, and the chemicals dissolving unit comprises an ultrasonic dispersing tank. The method comprises the steps that 1) cleaning fluid produced by the cleaning fluid secondary processing unit is introduced into tank bodies, and ultrasounds are started; 2) cleaning fluid in the tank bodies is introduced into the cleaning fluid primary processing unit and introduced into the cleaning fluid storage unit; 3), the cleaning fluid in the cleaning fluid storage unit is introduced into the cleaning fluid secondary processing unit to be processed and recycled;and 4) the chemicals is placed in the ultrasonic dispersing tank, ultrasounds are started for accelerating dissolving. By means of the method, pollutants can be effectively removed, recycling of waterresource is realized, meanwhile, the dissolving speed of raw materials can be accelerated, and dispersing is homogenized.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a device for circulating cleaning and dissolving chemicals and a method for circulating cleaning and dissolving chemicals. Background technique [0002] Lithium-ion batteries have the advantages of high energy density, high working voltage, no memory response, small self-discharge, and long cycle life. They have been widely used in many fields such as mobile phones, notebook computers, pure electric vehicles, mobile base stations, and energy storage power stations. As the key material for the production of ternary cathodes for lithium-ion batteries, ternary precursors are mixed and sintered with lithium sources to form ternary cathodes, and their properties directly determine the core physical and chemical properties of ternary cathode materials. [0003] The synthesis method of the ternary material precursor is mainly the chemical co-precipitation method. Generally, the synthetic ...

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Problems solved by technology

[0006] The above schemes all adopt the filtration and washing process for the ternary material reaction slurry, which causes a lot of waste of water resources and increases the difficulty of product debugging in the early stage

[0007] The raw material nickel cobalt manganese salt of the ternary material precursor needs a lot of time in the dissolution section. At present, stirring is usually used for dissolution, and the long time will affect the production efficiency.

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