摘要:
针对矿山极薄矿脉开采后,矿石与废石全部进入后期处理时会造成能源极大浪费的问题.本文分别采用视觉检测法、激光诱导击穿光谱法、X射线荧光法对金矿石和废石进行分析,通过颜色差别、特征元素含量差异等拣选特征,区分金矿石和废石,并拣选出混杂在金矿石中的废石.通过三种拣选方法的试验与分析,确定了X射线荧光法在线拣选的可行性,使矿石预选阶段即可丢弃大量的废石,提高了入选原矿的品位,具有很大的工程应用价值.
Abstract:
DAiming at the extra narrow veins of mine, the mining of ore and waste rock all into the post-processing, which will cause a great waste of energy, in this paper, visual inspection, laser induced breakdown spectroscopy, X-ray fluorescence method were adopted to analyze the gold ore and waste rock, distinguish the gold ore and waste rock by the characteristics of color difference, characteristic element content difference and so on, and pick out the waste rock that mixed in the gold ore. Through the test analysis of the three sorting methods, the feasibility of X-ray fluorescence online sorting was determined, which made a large number of waste rock can be discarded in the ore pre-selection phase. It not only improves the grade of raw ore, but also has great engineering application value.
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