Research on Technology Optimization of Fine Grinding and Magnetic Separation for a Fine-grained Iron Ore in Qinhuangdao

LONG Yuan; LIU Yu; XIAO Xiao; ZHANG Guowang; ZHAO Xiang; SHI Li

doi:10.13779/j.cnki.issn1001-0076.2021.05.017

2021 Vol. 41, No. 5

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Article navigation > Conservation and Utilization of Mineral Resources > 2021 > 41(5): 123-126

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LONG Yuan, LIU Yu, XIAO Xiao, ZHANG Guowang, ZHAO Xiang, SHI Li. Research on Technology Optimization of Fine Grinding and Magnetic Separation for a Fine-grained Iron Ore in Qinhuangdao[J]. Conservation and Utilization of Mineral Resources, 2021, 41(5): 123-126. doi: 10.13779/j.cnki.issn1001-0076.2021.05.017

Citation:

LONG Yuan, LIU Yu, XIAO Xiao, ZHANG Guowang, ZHAO Xiang, SHI Li. Research on Technology Optimization of Fine Grinding and Magnetic Separation for a Fine-grained Iron Ore in Qinhuangdao[J]. Conservation and Utilization of Mineral Resources, 2021, 41(5): 123-126. doi: 10.13779/j.cnki.issn1001-0076.2021.05.017

Research on Technology Optimization of Fine Grinding and Magnetic Separation for a Fine-grained Iron Ore in Qinhuangdao

1.
Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
2.
Hunan JinMill Technology Co., Ltd., Changsha 410012, Hunan, China

Received Date: 15 October 2021

Publish Date: 25 October 2021

Abstract

Abstract

A vertical stirring mill is used as the regrinding equipment for fine-grained minerals.The fine-grained iron ore in the Qinhuangdao area is used as the test sample to conduct a test study on grinding and magnetic separation conditions.The results show that the particle size of the ground product reaches -0.038 mm It accounts for 95.43%.Highquality iron powder with a yield of 66.12%, a magnetic iron grade of 64.06%, a recovery rate of 97.16%, and a total iron grade of 65.94% can be obtained after one rough selection and two selections.The grinding power consumption test of the mill shows that when the particle size of the grinding product reaches -0.038 mm, which accounts for about 95.00%, the grinding power consumption is 15.20 kW·h/t.The test shows that the iron ore in the Qinhuangdao area can obtain good beneficiation indexes through fine grinding and dissociation.The vertical mixing mill is an efficient fine grinding equipment.
- fine-grained iron ore /
- fine grinding /
- vertical stirring mill /
- magnetic separation

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References

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