Drainage water diffluence method for dry red mud disposal and drainage water diffluence structure thereof
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUIYANG AL-MG DESIGN & RES INST
- Publication Date
- 2009-01-28
- Estimated Expiration
- Not applicable ยท inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a drainage diversion utilization method and a drainage diversion structure of a dry-process red mud storage yard, and belongs to the technical field of red mud dry disposal. Background technique
[0002] Red mud is a waste residue produced in the production of alumina. Except for a small amount of red mud that can be comprehensively utilized, each alumina plant needs to build a special red mud storage yard to store red mud. There are two main methods of red mud storage: dry method and wet method. It is generally believed that the red mud entering the storage yard has a moisture content of more than 47% as a wet method, and a moisture content lower than 47% as a dry method. Red mud with alkali is generally 3~5g / L. Therefore, the pH value of the red mud attached liquid is usually above 12. The storage condition of the wet storage yard is similar to that of a reservoir, and has the disadvantages of high soaking line, high safe...