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本文研究了203块-60+30毫米粒级硫氧混合锑矿石的四种预选特征。在测定矿块磁性、漫反射光性、密度和在~(241)Am照射下的X射线荧光(XRF)强度的基础上,计算了预选特征与品位的相关系数,矿石品位分布的显明度,预选标志指标和预选标志效率,列出了按密度和按X射线荧光强度预选的可选性指标,指出按XRF预选可以获得最好的预选效果,并通过对射线作用深度的计算,分析了XRF拣选含锑矿石的优点。
In this paper, four kinds of preselected features of 203 -60 + 30mm grain-size sulfur-oxygen mixed antimony ores are studied. Based on the determination of magnetism, diffuse reflectance, density and x-ray fluorescence (XRF) intensity under ~ (241) Am irradiation, the correlation coefficients of preselected characteristics and grade, the degree of apparent degree of ore grade distribution, Preselection indicators and preselection efficiency, listed by density and according to X-ray fluorescence intensity preselected optional indicators, pointed out that by XRF preselection can get the best preselection effect, and through the calculation of the depth of the ray effects, analysis of the XRF Select the advantages of antimony ore.