论文部分内容阅读
计算一个生产矿山的年、季、月份的出矿品位一般是依着公式C_出=C_地(1—η)计算的。式中C_出为出矿品位,C_地为实际投产矿块的矿石地质品位,η为贫化率。由于实际计算和统计贫化率的幅度小,代表性不强,计算的贫化率波动又较大,从而导致依上式计算的出矿品位不准确,以此作为计划指标往往与实际完成情况相差较大。我们对某钼矿二十二年(1956～1977年)间各年投产矿块的地质品位与出矿品位之间的关系进行了分析,发现它们之间存在着较
Calculation of a production mine in the ore season, the month of the month is generally based on the formula C_ out = C_ (1-η) calculated. Where C_ out of ore grade, C_ for the actual production ore ore geological grade, η for the depletion rate. Due to the fact that the actual calculation and statistical rates of depletion are small in magnitude and not representative in nature, the calculated dilution rate of volatility is relatively large, resulting in inaccuracies in the ore-dressing grade calculated according to the above formula, which is often used as a plan indicator in comparison with the actual completion A big difference. We analyzed the relationship between the geological grade and ore grade of ore blocks put into operation in each year during the twenty-two years (1956 ~ 1977) of a molybdenum mine and found that there is a