Circulatory solution filtering device and method

Abstract

The invention provides a circulatory solution filtering device used for filtering a to-be-filtered solution. The device comprises a reaction tank, a circulating system and a filtering system. The circulatory solution filtering method adopting the device comprises the steps that acid liquor in the reaction tank is circulated and filtered through the circulating system and the filtering system, accordingly the cleanliness of the solution in the reaction tank is guaranteed, and cleaning is convenient; and harm of gas generated in the reaction tank to the human body is reduced, the structure is simple, the production cost is lowered to a certain extent, and production process requirements are met.

Description

technical field [0001] The invention relates to the technical field of metal material surface treatment, in particular to a solution circulation filtering device and method. Background technique [0002] On the metal material pickling unit, especially the tube rod type wire pickling unit, intermittent pickling is adopted, and a bundle / coil is placed in the tank for pickling, and a large amount of insoluble matter will be deposited at the bottom of the tank during the pickling process Or suspended in the acid solution, if it is not removed in time, it will affect the pickling quality of the metal material surface, and some precipitates will react with the acid solution again, wasting the acid solution, therefore, the reaction tank needs to be cleaned regularly. Under normal circumstances, the acid mist in the tank is very heavy and the environment is poor, which seriously affects the health of workers; on the other hand, the sediment cleaning work is carried out after the equ...

AI Technical Summary

Problems solved by technology

[0002] On the metal material pickling unit, especially the tube rod type wire pickling unit, intermittent pickling is adopted, and a bundle / coil is placed in the tank for pickling, and a large amount of insoluble matter will be deposited at the bottom of the tank during the pickling process Or suspended in the acid solution, if it is not removed in time, it will affect the pickling quality of the metal material surface, and some precipitates will react with the acid solution again, wasting the acid solution, therefore, the reaction tank needs to be cleaned regularly

Under normal circumstances, the acid mist in the tank is very heavy and the environment is poor, which seriously affects the health of workers; on the other hand, the sediment cleaning work is carried out after the equipment stops working, which reduces the working efficiency of the unit and affects the production capacity of the unit

[0003] At present, some domestic iron and steel enterprises use plate and frame filter presses, and some use imported systems for swirling and membrane filtration. The above methods require large investment, complex systems, high maintenance and operation costs, and the operation of equipment is unstable, and the pipeline is easy to block.

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