A multi-stage filtration and circulation device for micro-etching fluid processing

Abstract

This utility model discloses a multi-stage filtration and circulation device for micro-etching fluid processing, including a filter box. The top of the filter box is fixed with a top cover by bolts and nuts. A first rotating shaft is rotatably mounted in the middle of the top cover through a sealed bearing. In this multi-stage filtration and circulation device for micro-etching fluid processing, the stainless steel filter screen is designed with a "W"-shaped structure in a frontal half-section. This structure makes it easier for impurities to flow to the bottom of the stainless steel filter screen and be collected under the action of gravity and liquid flow, reducing the probability of clogging of the stainless steel filter screen, extending the service life of the filter screen, reducing the frequency of cleaning and replacing the filter screen, and improving filtration efficiency. The stainless steel filter screen can be rotated by a drive mechanism. During the rotation, impurities can be thrown to the bottom of the stainless steel filter screen, further enhancing the concentrated collection effect of impurities. At the same time, it also allows the micro-etching fluid to come into more full contact with the filter screen during the filtration process, improving the filtration effect.

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