A method for high-value utilization of ordinary high-silicon iron concentrate

Abstract

The invention discloses a method for high-value utilization of ordinary high-silicon iron ore concentrate, and relates to the technical field of ore dressing. The method for high-value utilization of ordinary high-silicon iron ore concentrate includes the following steps: S1, collect ordinary iron ore, and add it to a ball mill for ball milling operation; S2, add the iron ore obtained in step S1 to a tower mill Inside the tower mill operation. The high-value utilization method of ordinary high-silicon iron concentrate adopts the technological process of ball mill, tower mill combined grinding, coarse and fine classification, combined magnetic separation of drum magnetic separator and electromagnetic elutriation machine, and cationic reverse flotation desiliconization. Three products of super iron concentrate, high-grade iron concentrate and high-silicon building material raw materials are produced, with strong process adaptability, good sorting effect, low production energy consumption, no tail emissions, and can be used for large-scale industrial production of ordinary The method of high-value utilization of high-silicon iron concentrate solves the problems of low added value of ordinary iron concentrate products, high energy consumption and poor indicators of super iron concentrate production.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for high-value utilization of ordinary high-silicon iron ore concentrate. Background technique [0002] Super iron concentrate generally refers to the magnetite concentrate with a grade higher than 71.5% and a SiO2 content of less than 0.2%-0.3%. It is a new type of functional material with great development potential and market prospects. It can be widely used in powder metallurgy, magnetic materials , electronics, chemical, environmental protection, fresh-keeping and medical industries, the demand is also increasing with the development of social economy and technology. Compared with ordinary iron concentrates, super iron concentrates have higher technical content and added value, and their selling price is 3 to 5 times that of ordinary iron concentrates. The value of mineral resources and the advancement of mineral processing technology and product upgrade...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a method for high-value utilization of ordinary high-silicon iron concentrate, which solves the problem that ball mills are mostly used for grinding, and the grinding method is single, resulting in low grinding efficiency and high energy consumption. Most of them use drum-type magnetic separators as magnetic separation equipment. The magnetic separation method is single and the magnetic separation index is poor. Although some technologies also use electromagnetic elutriation machines, they usually enter the elutriation at the full-grain level, resulting in electromagnetic elutriation. The number of equipment is too large and the water consumption is large. Most reverse flotation operations only add amine reagents, resulting in poor flotation indicators and high SiO2 impurity content in concentrates. Some technologies use chemical leaching, resulting in complicated processes and high production costs. , and it is easy to cause environmental pollution, and the existing technology does not specifically target high-silicon iron concentrate, so the tailings produced cannot be effectively utilized, resulting in a waste of resources

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