摘要
以吉林省大石河钼矿为例,论述了露天矿山开采每吨矿石的(吨矿价值)盈利能力最大,或者矿山在生产服务年限内的盈利最大化两种情况下,计算露天采矿"最低开采品位指标"的方法,并对其应用的前提、产生的效果和应用过程中存在的问题进行了讨论和说明。这两种方法联合使用,在时间上,可以使资金成本极大的降低,从而使资金效益得到极大的提高。特别是采用"开采每吨矿石的(吨矿价值)盈利能力最大"方法开采完成后,再处理该方法中已开采出堆存的矿石,其经济效益更佳。
Taking Dashihe molybdenum deposit in Jilin as an example,the authors discussed the calculation methods for cut-off grade index under two conditions,including the maximum profit of each ton of open-pit mining ore and the maximum profit over production and service years.In addition,the conditions of its application,effects produced and problems in application process are discussed and explained.The combination of the two methods can reduce the cost greatly in terms of time,which will greatly increase the efficiency of financial resources.In particular,when using the first method,processing the mined ore after the completion of mining can achieve better economic benefit.
作者
卢大超
LU Da-chao(Changchun Gold Design Institute Co.,Ltd.,Changchun 130012,China)
出处
《世界地质》
CAS
2019年第4期1125-1131,共7页
World Geology
基金
吉林省金山投资有限公司小石河钼矿可行性研究(775-2019)
关键词
露天开采
品位指标
矿山经济效益最大化
钼矿
大石河
open-pit mining
cut-off grade
maximum economic benefit of mine
molybdenum deposit
Dashihe
