Samples of the rough concentrate of low intensity magnetic separation, the products under high frequency fine sieve and the final concentrate from Concentration Plant of Batai Iron Mine of Wuyang Mining Company are taken to make laboratory experiment on magnetic field screening. The results showed that qualified iron concentrate with iron grade, productivity and iron recovery of above 66% , 82% and 94% was directly obtained by the process of one cleaning separation with magnetic field screening after removing + 0. 3 mm rough particles of rough concentrate and the products under high frequency fine sieve. For the primary final concentrate, iron grade can be improved from 65. 5% to about 68% through the method above. This indicated that the application of the magnetic field screening into Concentration Plant of Batai Iron Mine can reach remarkable effects on simplifying the process, increasing output and saving consumption, and improving the iron concentrate quality.%分别采取舞阳矿业有限责任公司八台铁矿选矿厂弱磁粗选精矿、高频细筛筛下产物及最终精矿样品进行实验室磁筛精选试验,结果显示:弱磁选粗精矿或高频细筛筛下产物隔除+0.3 mm粗颗粒后用磁筛进行1次精选,可直接获得铁品位、作业产率、铁作业回收率分别在66％、82％、94％以上的合格铁精矿；原最终精矿隔除+0.3 mm粗颗粒后用磁筛进行1次精选,铁品位可由65.5％左右提高到近68％.这说明磁筛若应用于八台铁矿选矿厂,将在简化流程、增产节能、提高铁精矿质量等方面取得显著成效.
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