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Mineral dressing technique for low ore grade iron ore and mineral dressing equipment thereof

A kind of mineral processing equipment and iron ore technology, which is applied in the field of low-grade iron ore mineral processing technology and its mineral processing equipment, can solve the problems of low productivity, high cost, and inability to obtain economic benefits, etc., and achieve long service life, reduce load, and maintain The effect of simple and easy work

Inactive Publication Date: 2008-02-27
王林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is suitable for lean ore with a grade of about 20%, but when using iron ore with a grade of less than 15% for beneficiation, the productivity is too low and the cost is too high, especially when the grade is 4-8%. When th

Method used

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  • Mineral dressing technique for low ore grade iron ore and mineral dressing equipment thereof
  • Mineral dressing technique for low ore grade iron ore and mineral dressing equipment thereof
  • Mineral dressing technique for low ore grade iron ore and mineral dressing equipment thereof

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Embodiment Construction

[0033] The specific embodiments of the present invention will be described below in conjunction with the drawings.

[0034] As shown in Figure 1, the low-grade iron ore beneficiation process according to the present invention includes coarse crushing, primary fine crushing, dry separation and screening, ball milling, material distribution machine, magnetic separation, high-frequency screening, and filtration. It is characterized by including the following steps:

[0035] 1) The mineral material sieved by the coarse crushing, primary fine crushing, and dry separation screening machine 3 is sent from the storage bin 4 to the secondary screening machine 5 through the conveyor belt for secondary screening.

[0036] 2) The coarse ore screened by the secondary screening machine 5 is sent to the wet fine crusher 6 for secondary fine crushing, and the fine material screened out is sent to the wet coarse classifier 8 for wet roughing.

[0037] 3) The secondary finely crushed mineral materi...

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PUM

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Abstract

The invention discloses a low-grade iron ore dressing technique and equipment in the ore dressing technical domain, which comprises the following steps: doing rough breaking and once fine breaking; proceeding dry cleaning and sieving; milling; separating; doing magnetic cobbing and high-frequency sieving; filtering; sieving twice for ore material; obtaining the product. The ore dressing equipment comprises the following parts: rough breaking machine, fine breaking machine, dry cleaning bolter, storage bin, ball mill, separatory machine, magnetic cobber, high-frequency sieve, filter, a set of wet rougher unit between the storage bin and the separatory machine, wherein the wet rougher unit contains band conveyer, twice bolter, wet fine grinder, wet bolter and wet rougher. The invention improves the production by 1-2 times under the same energy consumption condition in comparison with the present technique and equipment, which utilizes the low-grade iron ore resource sufficiently.

Description

Technical field [0001] The invention relates to the technical field of beneficiation, in particular to a low-grade iron ore beneficiation process and beneficiation equipment. Background technique [0002] With the development of the iron and steel industry, the demand for iron ore, especially the demand for iron ore concentrates, is increasing. Due to the limited reserves of rich iron ore resources, how to use the rich reserves of lean ore resources has become a top priority. The current process of developing and utilizing lean ore resources includes the following steps: coarse crushing, fine crushing, dry separation and screening, ball milling, material separation, magnetic separation, high-frequency screening, secondary magnetic separation, dry separation and screening of iron ore The separated waste slag is transported away, the tailings selected by the magnetic separation are sent to the tailing dam, and the concentrate powder is sent to the concentrate pool. This process is ...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B1/00B03B11/00B07B1/00B07B1/28B03C1/02
Inventor 王林
Owner 王林
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