Treatment device for iron phosphate wastewater evaporation mother liquor

By optimizing the structure and operating parameters of the iron phosphate wastewater evaporation mother liquor treatment device, the problems of low resource conversion efficiency and high energy consumption in the existing technology have been solved, and efficient resource recovery and utilization have been achieved, especially the crystallization and separation of NH4+, SO42+, and PO33+, and the products can be used as fertilizer base fertilizer.

CN224377704UActive Publication Date: 2026-06-19BEIJING MINGZEYUAN ENVIRONMENTAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING MINGZEYUAN ENVIRONMENTAL ENG CO LTD
Filing Date
2025-06-04
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing technologies for treating ferric phosphate wastewater suffer from problems such as low resource conversion efficiency, high energy consumption, and small crystal salt particle size, making separation difficult and resulting in the failure to effectively recover and utilize valuable components.

Method used

A treatment device for ferric phosphate wastewater evaporation mother liquor was designed. It adopts a shell with a specific structure, a stirring mechanism and a heat exchange mechanism. By optimizing the flow rate and temperature control, the crystallization separation efficiency is improved and resource utilization is realized.

Benefits of technology

It improves the crystallization separation efficiency of NH4+, SO42+, and PO33+, and the crystallized products can be used as base fertilizer. The resource recovery rate is not less than 99%, realizing high-value utilization and reducing energy consumption and separation difficulty.

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Abstract

This application relates to a treatment device for ferric phosphate wastewater evaporation mother liquor, with a height-to-inner-diameter ratio ≥2.5, comprising: a shell; the shell including a cylindrical section and a conical bottom; a cap at the top of the cylindrical section; a stirring mechanism on the cap; an overflow port on the upper side wall of the cylindrical section; an overflow ring corresponding to the overflow port inside the cylindrical section; one end of a feed pipe communicating with the cap; the conical bottom communicating with the cylindrical section; a discharge port on the side wall of the conical bottom; and a volume ≥0.5 m³. 3 A heat exchange mechanism is fitted onto the outer surface of the cylindrical section and the conical bottom; the heat exchange mechanism is located between the overflow port and the discharge port; the height difference between the overflow port and the discharge port is ≥800mm. This device improves crystallization efficiency and crystallization effect by optimizing the shell structure.
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