Experimental investigation on magnetic-gravity combined beneficiation of low-grade iron ore

被引:0
作者
Ye, Fangping [1 ]
Duan, Yaojie [1 ]
Guo, Zhiqiang [2 ]
机构
[1] Hubei Univ Technol, Key Lab Modern Manufacture Qual Engn, Wuhan 430068, Peoples R China
[2] SLon Magnet Separator Co Ltd, Ganzhou 341000, Peoples R China
来源
PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING | 2024年 / 60卷 / 05期
关键词
low-grade iron ore; magnetic-gravity combined beneficiation method; continuous expansion semi-industrial tests;
D O I
10.37190/ppmp/192832
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Iron ore is an important raw material for manufacturing steel, while the grade of domestic iron ore is relatively low in China, thus it is difficult to concentrate. The low-grade iron ore with a total iron content of only 33.51% is innovatively upgraded by the magnetic-gravity combined beneficiation method. The effects of three key operating parameters of magnetic induction, grinding concentration, and centrifuge speed on magnetic-gravity combined beneficiation are investigated. These results show that the magnetic-gravity combined beneficiation method significantly improves the iron grade of the concentrates at high recovery. The feasibility is further confirmed through continuous expansion semi- industrial tests with the optimized parameters. The grade of the iron ore concentrate is increased from 33.51% to 63.58% with an iron recovery of 71.01% and a productivity of 37.43%. It is thus concluded that the magnetic-gravity combined beneficiation method has provided a technical reference for the recovery of iron resources from low-grade ores.
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收藏
页数:11
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