一种磷酸的回收提纯系统

By combining bag filters, ball filters, and membrane filters, the problem of high impurities in phosphoric acid wastewater during aluminum foil production was solved, enabling the recovery and reuse of phosphoric acid and reducing the company's operating costs.

CN115650368BActive Publication Date: 2026-07-17SICHUAN ZHONGYA TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN ZHONGYA TECH
Filing Date
2022-11-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The phosphoric acid wastewater discharged during the aluminum foil production process has a high impurity content, which increases the company's operating costs. Existing technologies have not been able to effectively recycle and utilize the wastewater, which has increased the company's capital expenditure.

Method used

A combined system of bag filters, ball filters, and membrane filters is used to remove impurities from wastewater through multiple filtration stages, thereby achieving the recovery and purification of phosphoric acid.

Benefits of technology

Filtering wastewater into a reusable phosphoric acid solution reduces the cost for companies to purchase phosphoric acid and treat wastewater, thus achieving resource recycling.

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Abstract

本发明提供了一种磷酸的回收提纯系统,目的是解决现有技术中化成铝箔的生产工艺中,排放的废水增加企业运营成本的技术问题。该系统包括:袋式过滤器,其入料端与车间的排水连通;球式过滤组件,其一端与所述袋式过滤器的出水端连通,其具有一个污水端并连接于污水站;中间水箱,与所述球式过滤组件的另一端连通,反洗后将污水通入所述球式过滤组件内;膜过滤组件,与所述中间水箱反洗后的清水端连通。将车间内产生的废水经过多重过滤,使废水变为磷酸溶液,然后只需要对该磷酸溶液的浓度进行调整即可再次进入车间内使用,从而实现了,磷酸的重复使用,极大的降低了企业购买磷酸的成本和对污水的成本。
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