Overall utilization and treating process of iron ore mine

A technology for iron ore tailings and processes, applied in the field of overall utilization and disposal of iron ore tailings, can solve the problems of dehydration, difficult filtration, low economic benefits, and different comprehensive utilization methods, so as to reduce the amount of tailings and reduce costs. Treatment costs, elimination of potential safety hazards, and significant reduction in emissions
CN101513625AInactive Publication Date: 2009-08-26SINOSTEEL MAANSHAN INST OF MINING RES
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SINOSTEEL MAANSHAN INST OF MINING RES
Publication Date
2009-08-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an overall utilization and treating process of iron ore mine, which comprises the following steps: (1) according to a grading process, separating coarse grain ore mine from the iron ore mine, in which SiO2 is not less than 40%, wherein, the content of 0.16mm grade in the coarse grain ore mine is not more than 10%; (2) according to a magnetic separation method, recovering the iron mine from the fine grain ore mine separated by the grading process, thus obtaining a rough concentrate and a fine new ore mine; (3) performing the dehydration onto the fine grain ore mine or the fine new ore mine via a densifier and a filter to obtain a fine dry ore mine, wherein, the water content is not more than 20%; (4) discharging the fine dry ore mine to a dry ore mine storage yard or using the fine dry ore mine as industrial raw material. The invention has advantages that: valuable component can be overall recovered, the ore mine can be greatly utilized, meanwhile, zero ore discharge in the ore mine base can be achieved. Accordingly, the invention is widely used for overall utilization and safety treatment of magnetic iron ore and hematite ore mine.
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Description

technical field

[0001] The invention relates to a tailings utilization and disposal technology, in particular to an overall utilization and disposal process of iron ore tailings, which can be widely used in the comprehensive utilization and safe disposal of magnetite and hematite ore dressing tailings, and is especially suitable It is mainly concerned with the overall utilization and safe disposal of magnetite ore and hematite ore dressing tailings whose gangue minerals are mainly quartz. Background technique

[0002] Tailings are the wastes discharged by the concentrator after grinding the ore and selecting "useful components" under specific economic and technical conditions, that is, the remaining solid waste after the ore has been separated into concentrate. Generally, it is a solid mining waste formed by natural dehydration of tailings pulp discharged from a concentrator. It is the main component of solid industrial waste. It contains a certain amount of useful metals an...

Claims

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