贫赤铁矿高压辊磨产品磨矿特性及解离特性研究

来源 :2013第四届中国矿业科技大会 | 被引量 : 0次 | 上传用户:koala01250708
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本文对鞍钢齐大山铁矿贫赤铁矿高压辊磨机粉碎产品磨矿特性及解离特性进行了研究,结果表明:分别以0.074mm和0.28mm为控制筛孔尺寸,辊压产品的球磨功指数分别为13.76(kW·h/t)和5.48(kW·h/t);对-3.2mm和-3.2+0.074mm粒级的粉碎产品进行可磨度试验,当再磨细度为-0.074mm占80%时,辊压产品与颚破产品的相对可磨度系数分别为0.83和0.86;辊压产品-0.5mm中有用矿物的单体解离度为77.15%;当磨矿细度-0.074mm含量由40%提高到95%时,辊压后磨矿产品的有用矿物单体解离度73.27%提高到95.11%,但提高的幅度有所减小;辊压后磨矿产品连生体颗粒中多以毗邻状、斑点状和脉状连生体为主,属于2次磨矿时组成矿物易于解离的连生体.
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