Red mud iron extraction microwave roasting equipment and technological process

By using microwave roasting equipment and process flow for iron extraction from red mud, the roasting process of red mud is optimized by utilizing preheating and retention components, which solves the problem of low energy consumption in the physical iron separation of red mud in the existing technology and realizes high-efficiency and low-energy production of iron extraction from red mud.

CN121346499AActive Publication Date: 2026-01-16HUNAN ZHONGSHENG THERMAL ENERGY TECH CO LTD
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Patent Information

Application Number
CN202511481029.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-01-16
Estimated Expiration
2045-10-16

AI Technical Summary

Technical Problem

Existing red mud physical iron beneficiation technology suffers from low iron concentrate grade and high energy consumption, making it difficult to achieve large-scale industrial application.

Method used

The red mud iron extraction microwave roasting equipment and process flow adopts the method of preheating red mud particles by setting up preheating components, improving the uniformity of red mud in furnace tubes by combining retention components, and using microwave heating to achieve roasting, thereby reducing energy consumption.

Benefits of technology

This improved the efficiency of red mud roasting and the grade of iron concentrate, reduced the overall power consumption of the equipment, and achieved efficient and low-energy production of iron extraction from red mud.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention provides red mud iron extraction microwave roasting equipment and a technological process, and relates to the technical field of red mud iron extraction, the red mud iron extraction microwave roasting equipment comprises a fixed underframe, the top of the fixed underframe is provided with a rotary kiln, and the rotary kiln comprises a furnace shell, a furnace tube, a discharging end tube, a feeding assembly, a preheating assembly, a retention assembly and a driving assembly. By arranging the preheating assembly and the retention assembly, red mud particles can be effectively preheated, energy consumption needed by roasting can be reduced, meanwhile, the retention assembly can achieve the uniform effect of microwaves on the red mud particles, the heating and roasting efficiency of the red mud particles is effectively improved, the energy consumption in the red mud roasting process is greatly reduced through combination of the preheating assembly and the retention assembly, and the energy consumption is reduced. Through the novel red mud iron extraction process, the iron grade of the obtained iron ore concentrate is greatly improved.
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