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干式磁滑轮用来剔除磁铁矿中夹杂的废石、提高矿石质量、减少矿石入磨量已有十几年的历史,它是磁铁矿选厂节能、提高经济效益的一种有效设备。但目前国内制造的永磁磁滑轮的磁场强度较低,磁力较弱,分选矿石的粒度较小,因而不能满足生产的需要。为此,冶金部矿冶研究总院在小型磁系试验的基础上,于1981年研制出全部以锶铁氧体磁块为磁
Dry magnetic pulley used to remove inclusions in magnetite waste rock to improve ore quality, reduce the amount of ore into the mill has more than 10 years of history, it is magnetite ore dressing plant, improve economic efficiency of an effective device . At present, however, the magnetic field intensity of the PM magnetic pulley made in China is relatively low, the magnetic force is weak, and the particle size of the sorted ore is small, which can not meet the production needs. To this end, the Ministry of Metallurgical Research Institute of Mining and Metallurgy in small magnetic system based on the test, developed in 1981 to all the strontium ferrite magnet