A device and method for purifying wastewater of washed phosphogypsum

By setting up collection components and motor drive structure on the aeration tank, combined with the cooperation of limiting groove and scraper, continuous skimming and directional flow of foam are achieved. Solid-liquid separation is carried out by using stirring needle and filter plate, which solves the problem of low foam collection efficiency, realizes the recycling of water resources and stable compliance of effluent quality, and reduces operating costs.

CN121361916BActive Publication Date: 2026-07-10HUBEI LIUGUO CHEM IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUBEI LIUGUO CHEM IND
Filing Date
2025-10-27
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In the existing technology for treating wastewater from phosphogypsum washing, the foam collection efficiency is low and it is difficult to transport in a specific direction, which leads to difficulties in foam treatment, increases the solid waste treatment load and wastes wastewater resources.

Method used

A collection component is installed on the aeration tank, combined with a motor and belt pulley drive structure. The foam is continuously scraped and directed through the cooperation of the limiting groove and the scraper. Solid-liquid separation is carried out by the stirring needle and the filter plate, and deep purification is carried out with the activated carbon filter layer to realize the recycling of water resources.

Benefits of technology

It improves the efficiency of foam collection, reduces labor intensity, ensures no foam retention or overflow, realizes the recycling of water resources and the stable compliance of effluent quality, and reduces operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of wastewater treatment technology, specifically disclosing a device and method for purifying and treating wastewater from washed phosphogypsum. The device includes an aeration tank with a collection component at its upper end for collecting scum wastewater. The collection component includes a base fixedly installed at the center of the aeration tank, with a first drive shaft rotatably connected to the upper end of the base. A first pulley is fixedly installed on the upper end of the first drive shaft. By setting the collection component at the upper end of the aeration tank, and cooperating with the transmission structure of the motor and pulley, continuous scraping of scum is achieved. Simultaneously, the two-section limiting groove formed by the first and second limiting plates, in conjunction with the extrusion shaft, drives the scraper to tilt, guiding the scum to a separation chamber in a directional manner. This solves the problems of low scum collection efficiency and difficulty in directional transport in existing processes, replacing manual operation, reducing labor intensity, and ensuring no scum retention or overflow, providing a foundation for subsequent scum treatment.
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