A red mud pressure settling separation apparatus

By using pressurized rotary extrusion and self-cleaning technology in pressurized sedimentation separation equipment, the problems of low red mud separation efficiency and equipment scaling have been solved, achieving efficient and stable red mud separation and low-cost operation.

CN122127041APending Publication Date: 2026-06-02SHANDONG INST OF ECOLOGICAL ENVIRONMENT PLANNING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG INST OF ECOLOGICAL ENVIRONMENT PLANNING
Filing Date
2026-04-08
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing red mud filtration and separation equipment is inefficient and does not separate completely, resulting in slow solid-liquid separation speed, large concentration fluctuations, easy scaling of equipment, high operation and maintenance costs, and extended pressure filtration cycle.

Method used

The pressurized sedimentation separation equipment includes a frame assembly, a stirring assembly, a pressurized separation assembly, a sedimentation assembly, and a return filter assembly. Through pressurized rotation and squeezing, static filtration, and return filtration, combined with impact separation rings and spring-loaded elements, it achieves rapid separation and self-cleaning.

Benefits of technology

It significantly improves the efficiency of red mud separation, reduces the filter press cycle, lowers energy consumption, ensures stable filter cake moisture content, prevents equipment scaling, and reduces operation and maintenance costs.

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Abstract

This invention relates to the field of sedimentation separation technology, and in particular to a pressurized sedimentation separation device for red mud. The pressurized sedimentation separation device for red mud includes a frame assembly, three stirring assemblies, three pressurized separation assemblies, a sedimentation assembly, and a return filter assembly. This invention utilizes the pressurized separation assemblies for pressurized rotary extrusion, which, in conjunction with the sedimentation and return filter assemblies, performs static filtration and re-filtration, rapidly removing a large amount of free water from the red mud in advance. This significantly increases the concentration of the material entering the filter press, improving the pressing efficiency of the filter press. It also makes it easier to thoroughly remove capillary water and bound water during the filtration stage, resulting in a lower and more stable moisture content in the final filter cake. Furthermore, the pressurized rotary extrusion process prevents slurry agglomeration and clogging of the flow channels, while removing attached solid particles and preventing long-term adhesion and scaling of fine red mud particles. It also increases the intensity of the rotary extrusion, enhancing the solid-liquid separation effect.
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