宜春钽铌矿选矿厂二段磨矿球磨机磨矿产品粒度设计要求-0.2毫米达到85％。几年来,产品-0.2毫米产率为60～70％。由于给矿中有28％左右是锂云母(其余为长石、石英及少量黄玉),导致矿石难以磨碎,我们进行了不同球径配比的磨矿试验,得到比较满意磨矿效果。φ2100×2200毫米球磨机的操作条件是: Yichun tantalum and niobium ore dressing plant two section mill ball mill grinding product size design requirements of -0.2 mm to 85%. In recent years, the yield of the product -0.2 mm is 60 to 70%. Since about 28% of the ore is lepidolite mica (the rest is feldspar, quartz and a small amount of topaz), the ore is hard to be ground. We conducted the grinding tests with different ball diameters to get more satisfactory grinding results. φ2100 × 2200 mm ball mill operating conditions are: