Electro-galvanizing liquid automatic allocating and updating system

Abstract

The invention provides an automatic configuration-updating system of electrogalvanizing solution, comprising a dissolving / configuration system of the electrogalvanizing solution, a filtering system, a vacuum concentration separation system, a circulating system and an electroplating solution collecting tank. Impurities of a filter are taken out regularly by the reasonable and optimized configuration of all the systems; and the diluted electroplating solution is separated into water and the concentrated electroplating solution by the vacuum concentration separation system so as to realize clean production and recover the activity of the electroplating solution, therefore, the electroplating solution can be used circularly without regular updating and waste water discharging, and the environment is effectively protected. The system supplies the electrogalvanizing solution to an electroplating bath and a rinse-system, the electrogalvanizing solution works stably and continuously in the processes of electroplating, filtering, concentration, dissolving and the like, simultaneously, SO4<2-> is relatively stable, and the activity of the solution is easy to be recovered, thus being favorable to the repeated use of the solution and ensuring the stable quality of the electroplating solution.

Description

technical field [0001] The invention relates to an automatic configuration-renewal system of an electrogalvanizing solution, which is applied to a strip steel continuous electrogalvanizing production unit. Background technique [0002] In the strip steel continuous electrogalvanizing unit, the waste water generated during the electrogalvanizing production process and the elimination of the electroplating solution have always been the main problems that plague the traditional production. The traditional electrogalvanizing (using alkaline cyanide plating solution, alkaline phosphate plating solution, Chloride system, fluoroborate system, etc.) produce a large amount of wastewater, which is difficult to treat and high in cost. In recent years, the sulfate system-zinc sulfate solution has been adopted in the world, that is, sulfuric acid dissolves zinc or dissolves zinc sulfate to obtain electroplating solution (zinc sulfate) to realize electro-galvanizing. Although the waste li...

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Problems solved by technology

[0002] In the strip steel continuous electrogalvanizing unit, the waste water generated during the electrogalvanizing production process and the elimination of the electroplating solution have always been the main problems that plague the traditional production. The traditional electrogalvanizing (using alkaline cyanide plating solution, alkaline phosphate plating solution, Chloride system, fluoroborate system, etc.) produce a large amount of wastewater, which is difficult to treat and high in cost

In recent years, the sulfate system-zinc sulfate solution has been adopted in the world, that is, sulfuric acid dissolves zinc or dissolves zinc sulfate to obtain electroplating solution (zinc sulfate) to realize electrogalvanizing. Although the waste liquid of sulfate is easy to handle, due to equipment or configuration The reason is that such a production unit still produces a large amount of waste water

[0003] In the current electroplating production, there are insoluble anodes and soluble anodes. Insoluble anodes have the advantages of good quality, stability and easy control, and high speed. Disadvantages: more waste water and complex systems

Insoluble anodic electroplating production does not realize the infinite cycle of electroplating production. For the sake of electroplating quality, only a large amount of water containing useful substances can be discharged or even the electroplating solution is discharged regularly

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