摘要
讨论了当次放矿收支平衡法确定截止品位的几种主要计算方法。分析了按平均选矿回收率计算截止品位时，计算结果偏低的原因。提出了按平均选矿回收率或按截止品位对应的回收率计算截止品位的计算公式，同时指出了计算上的困难。建立了按尾矿品位确定截止品位的计算方法，并推荐该简便、可靠的方法。
Some main calcutating methods to ditermining cut-off grade were discussed by tbe way of this the drawing incoming and outgoing balance. The causes of the lower results to calculate cut-off grade according to the averaga recovery of mieral procesing was analyzed. The calculating formula of cut-off grade was proposed by the average recovery or the recovery corresponding to cut-off grade.While there are some difficulties in this calculation. The calculating method to ditermining cut-off grade according to the tailing grade was given out. This method is recommened because it is simple,convenient and dependable.
出处
《中国钼业》
1995年第2期41-44,共4页
China Molybdenum Industry
关键词
当次放矿
截止品位
选矿
回收率
崩落采矿法
This time drawing, Incoming and outgoing balance method, Cut-off grade, Recovery of mineral processing, Tailing grade
