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Iron ore powder mineral dressing process

A technology of iron ore powder and process, which is applied in the field of iron ore powder beneficiation process, can solve the problems of insufficient classification operation, waste economy, wide particle size of grinding operation, etc., and achieve significant economic and social benefits, magnetic separation Efficiency improvement and productivity improvement effect

Inactive Publication Date: 2009-11-18
包头市石宝铁矿集团有限责任公司
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Problems solved by technology

Even so, there are still some problems, such as backward beneficiation technology, too wide feed size for grinding operations, and imperfect classification operations, resulting in low concentrate output, while the iron content of tailings is above 6%. Some are even more than 20%, causing a large amount of mineral resources to be discarded with the tailings. Such a serious waste has brought huge economic losses to the country and mines

Method used

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  • Iron ore powder mineral dressing process

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Embodiment Construction

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0026] As shown in the figure, the present invention comprises the following steps:

[0027] 1) Primary crushing: Feed by feeding truck, crushed by the primary crusher, the primary crusher adopts jaw crusher, and the particle size of the iron ore crushed by the primary crusher is 7-15cm;

[0028] 2) Secondary crushing: The iron ore after the primary crushing is sent to the vibrating screen for primary selection, and the coarse iron ore on the screen is sent to the secondary crusher for secondary crushing. The secondary crusher adopts a cone crusher , the iron ore after the secondary crushing is sent back to the vibrating screen through the belt conveyor I for re-scree...

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Abstract

The invention discloses an iron ore powder mineral dressing process which comprises steps of primary cracking, secondary cracking, magnetization wheel magnetic separation, ball milling and classification, magnetic extractor roughing, high frequency screening, magnetic extractor cleaning and the like. Dressing equipment comprises a jaw breaker, a globe mill, a magnetic extractor, a high frequency sieve and the like. The mineral dressing process can increase the productivity, reduce the cost and have obvious economic and social effects.

Description

technical field [0001] The invention relates to an iron ore powder beneficiation process. Background technique [0002] Magnetite accounts for a large proportion of my country's iron ore reserves, reaching 48.8%. Finding out a reasonable process and equipment to process magnetite is of great significance to the development of mines in our country and the development of the entire iron and steel industry. In recent years, the mineral processing workers in our country have made unremitting efforts to make the magnetite mineral processing technology and equipment have been greatly developed, and the grade of iron concentrate has been greatly improved compared with before. Even so, there are still some problems, such as backward beneficiation technology, too wide feed size for grinding operations, and imperfect classification operations, resulting in low concentrate output, while the iron content of tailings is above 6%. Some are even more than 20%, causing a large amount of m...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B9/00B03B1/00
Inventor 刘永茂
Owner 包头市石宝铁矿集团有限责任公司
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