Abstract:

In order to efficiently develop and utilize an iron ore resource in Inner Mongolia，on the ba⁃

sis of the study of the mineralogical properties of ore technology，the whole process of high-pressure roller

grinding，wet magnetic separation，tail throwing，tower mill and magnetic separation was carried out. The

results show that the - 1 mm particle size fine ore was obtained by the high-pressure roller grinding ma⁃

chine，and the wet pre-separation concentrate with a total iron grade of 36.63% and a magnetic iron grade of

31.31% was obtained under the condition of 400 mT，and the wet pre-separation concentrate tower was

ground to -0.030 mm accounting for 95%，and the iron concentrate with an iron grade of 65.78% and a re⁃

covery rate of 66.22% was obtained by one roughing and one cleaning magnetic separation，and the test re⁃

sults could provide a feasible process for the iron ore separation.

Key words:

iron ore, dry throwing of powder ore, high pressure roller mill, tower mill, wet magnetic

separation