论文部分内容阅读
从废石的粒度组成、显明度特性以及所选定的分选标志和废石中有用元素含量的相关程度3个方面,对陕西洛南地区钼矿废石和丹凤地区铜矿废石的可选性进行了研究。结果表明:上述2种矿山废石的粒度组成符合荧光入选要求;品位变异系数分别为475.0%和313.2%,莫氏指数分别为1.245和1.41,均显示这两类矿山废石不同矿块之间品位分布差距较大,适合采用荧光预选工艺进行预先富集;矿石特散比值与其中有价元素的含量有较好的相关关系,可作为矿石品位高低的判别标志。
From the granularity of waste rock, the degree of explicitness, the correlation between the selected sorting marker and the content of useful elements in waste rock, Selectivity was studied. The results show that the granularity and composition of the two kinds of mines meet the requirements of fluorescence selection; the coefficient of variation of grade are 475.0% and 313.2% respectively, and the Mohs indices are 1.245 and 1.41 respectively, respectively. The difference of grade distribution is large, which is suitable for pre-enrichment by fluorescence pre-selection process. The ratio of ore-specific dispersion has a good correlation with the content of the valuable elements, which can be used as the discriminant mark of ore grade.