Experimental Study on Dry Magnetic Separation Pre-separation Process of a Low Grade Vanadium Titanium Magnetite in Western Panzhihua
The grade of TFe,mFe and TiO2 of a low-grade vanadium-titanium magnetite in Western Panzhihua area is 13.98%,4.99%and 6.09%,respectively.The conventional crushing-dry magnetic sepa-ration pre-separation tailings disposal process experiments are conducted based on the properties of the ore.The results show that under the conditions of feeding particle size of-10 mm,low intensity magnetic separa-tion belt line speed of 2.5 m/s and separation plate distance of 440 mm,and high intensity magnetic separa-tion belt line speed of 2.38 m/s and separation plate distance of 440 mm,a pre-separation concentrate with yield of 77.57%,TFe,mFe and TiO2 grade of 15.58%,6.34%and 7.10%,and TFe,mFe and TiO2 recov-ery rate of 86.46%,98.61%and 90.46%,respectively is obtained.The research results can provide a tech-nical basis for improving the grade of the milled ore and reducing the ore processing capacity of the subse-quent grinding and separation system.
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