论文部分内容阅读
在瑞典基努纳矿山中 ,除了某些矿体的某些矿段矿石磷含量超标外 ,其它铁矿石均具有非常优异的质量。因此 ,防止磷含量较高矿石与磷含量较低矿石混合具有非常大的经济意义。由自卸装岩机进行的远程采矿和运输的应用 ,使得有经验的采矿工人和井下实验室助理人员不再参与其中 ,因此需要采用新的手段在井下对矿石进行质量控制。 1998年 ,LKAB公司用LIF分析仪样机对自卸装岩机中的原矿磷含量进行非接触、实时分析试验。根据矿石磷含量的不同 ,将不同质量的矿石由采场运输到各自矿堆中。本文描述了激光诱导荧光 (LIF)分析法的原理、不同试验阶段的情况和试验结果 ,并由此做出了一些结论。采矿工程师支持选矿厂选矿专家对矿石进行井下批量拣选的意见。
At the Kilnuni mine in Sweden, all other iron ores are of exceptionally good quality, except for the phosphorus content of certain ore bodies in certain ore bodies that exceeds the phosphorus content. Therefore, it is of great economic significance to prevent the higher phosphorus content ore from mixing with the lower phosphorus content ore. The use of remote mining and transportation by dump rock machines no longer involves experienced miners and downhole laboratory assistants and therefore requires new means of quality control of the ore downhole. In 1998, LKAB used a LIF analyzer prototype to conduct a non-contact, real-time analysis of the ore’s phosphorus content in a dump rock loader. According to the different phosphorus content of ore, ore of different quality is transported from the stope to the respective ore heap. This article describes the principle of laser-induced fluorescence (LIF) analysis, the different stages of the test and test results, and draws some conclusions. Mining engineers support the beneficiation beneficiation ore dressing plant ore batch sorting opinions.