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出矿品位是铝土矿露天开采中的重要技术经济指标,它直接影响资源利用率、氧化铝生产的稳定性和采选的经济效益。根据氧化铝的生产要求、有无选矿工艺、所用采矿方法、进行配矿与否等因素考虑出矿品位,既能满足氧化铝生产的需要,又可充分利用铝土矿资源,使矿山获得更高的经济效益,为国家节省更多的资源与资金。笔者提出与推荐了有关计算公式及具体确定出矿品位的方法,供生产和设计中采用。
The ore grade is an important technical and economic indicator in opencasting of bauxite. It directly affects resource utilization, the stability of alumina production and the economic benefits of mining and dressing. According to the alumina production requirements, whether the beneficiation process, the mining methods used, with or without the ore and other factors to consider the ore grade, both to meet the needs of alumina production, but also make full use of bauxite resources, so that mine more High economic benefits for the country to save more resources and funds. The author proposed and recommended the relevant formula and a specific method to determine the ore grade for production and design.