Before analyzing the application and characteristics of multi-stage countercurrent rinsing, let’s learn about Riyi Motor Co., Ltd., Riyi Motor (Kunshan) Co., Ltd., which mainly produces chemical pharmaceutical filters, chemical pumps, acid-resistant pumps, and vertical Chemical filtration equipment such as pump, horizontal pump, PVDF material, bag filter, etc.
acid and alkali resistant pump The increasing editor understands that the cleaning methods used by electroplating companies earlier are mostly single tank cleaning, and the multi-level segmented cleaning can save a lot of water than single tank cleaning. However, the number of tanks occupies a large area and the operation is complicated, so the application of multi-stage countercurrent rinsing has changed the shortcomings of the former, which can save more than 95% of water compared to a single tank.
generally adopts 3. level countercurrent cleaning, which not only facilitates the circulation and reuse of pure water , reduces emissions, but also achieves the purpose of closed loop, which is beneficial to the recovery of electrolyte and environmental protection.
At the same time, in order to overcome the poor cleaning effect caused by the uneven density in the tank due to the small amount of water, generally oil-free air compressors or ultrasonic devices can be used to assist. The cleaning adopts the joint tank, and the design adopts the flowing water supply. The water inlet enters from the bottom and the upper part is suitable for stirring. A partition should be added between the tank and the tank to prevent the water quality from overflowing into the adjacent tank due to the rising water level during cleaning. The cleaning requirement is not to affect the quality of the next process as a benchmark. The cleaning before chrome plating needs to prevent excessive chromium ions. And sulfate ions are brought into the chrome plating tank.
There are still many knowledge points about the application of multi-stage countercurrent rinsing. Increasingly, motor acid and alkali resistant pump manufacturers will not explain them one by one. Those who are interested can visit some electroplating industry platforms to understand.
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