Reverse osmosis recycling device of electrophoresis phosphating wastewater

Abstract

The invention discloses a reverse osmosis recycling device of electrophoresis phosphating wastewater. The reverse osmosis recycling device of the electrophoresis phosphating wastewater comprises an assembly line area and a processing area, wherein the assembly line area includes a first soaking pool, a second soaking pool, a third soaking pool, a first phosphating water washing pool, a fourth soaking pool, a pure water prewash pool and a shack body workpiece outlet; the processing area includes a pure water washing and soaking pool, a second phosphating water washing pool, a phosphating pool,a meter adjusting pool and a degreasing washing pool; the first soaking pool, the second soaking pool, the third soaking pool and the fourth soaking pool are in through connection, and the first phosphating water washing pool is positioned between the third soaking pool and the fourth soaking pool; and the fourth soaking pool is arranged between the first phosphating water washing pool and the pure water prewash pool. According to the reverse osmosis recycling device of the electrophoresis phosphating wastewater, a cleaning tank communicates with a pipeline, and a circulating water pump is added to make clear water flow at a plurality of stations for multiple use, the water consumption is reduced, and the cleaning process of soaking, spraying, soaking and spraying is used, the extremely low water consumption is realized, and meanwhile, the cleaning effect of a workpiece is controlled, and the quality of electrophoretic coating of the workpiece and the stability of electrophoretic bathare guaranteed.

Description

technical field [0001] The invention relates to the technical field of phosphating process, in particular to a reverse osmosis recovery device for electrophoretic phosphating wastewater. Background technique [0002] Phosphating is a very important process in the pre-treatment of coating. The main purpose is to form a phosphating film and make the coated product more corrosion-resistant. The phosphating water washing process is two washings of dipping and spraying. This process is prone to unclean cleaning of the surface and inner cavity of the workpiece, which will affect the conductivity and pollute the electrophoretic bath, affecting the quality of the electrophoretic coating and the quality of the electrophoretic bath. stability. The conventional phosphating cleaning tank is designed as an independent tank. The water in the tank needs to be discharged directly after being polluted by impurities such as phosphating solution and phosphating slag, which consumes a lot of w...

AI Technical Summary

Problems solved by technology

The phosphating water washing process is two times of dipping and spraying. This process is prone to unclean cleaning of the surface and inner cavity of the workpiece, which will affect the conductivity and pollute the electrophoretic bath, which will affect the quality of the electrophoretic coating and the electrophoretic bath. stability

The conventional phosphating cleaning tank is designed as an independent tank. The water in the tank needs to be discharged directly after being polluted by impurities such as phosphating solution and phosphating slag, which consumes a lot of water and increases the treatment cost of phosphating sewage.

[0003] Disadvantages of the existing technology: the existing phosphating water washing process does not clean the workpiece cleanly, affects the conductivity of the workpiece, and is easy to pollute the electrophoresis bath, which directly affects the quality of the electrophoretic coating

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