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南非帕拉博拉铜矿于60年代中期投产。过去几年,该铜矿在采用新技术方面取得了很好的经济效果。二十年前的最初开采规划需日采剥矿岩7.5万吨(其中4万吨矿石的含铜量为0.78％),使用30台59吨汽车和斗容4.6米~3电铲。今天,日采剥量超过30.7万吨(含铜0.5％的矿石9.3万吨),使用78台154吨架线辅助汽车与斗容19.2米~3和9.1米~3的电铲。目前该矿的综合数据见下表。
The South Africa’s Palabora Copper Mine was put into operation in the mid-1960s. Over the past few years, the copper mine has achieved very good economic results in adopting new technologies. Twenty years ago, the initial mining plan required the exploitation of 75,000 tonnes of ore per day (of which 0.40% for 40,000 tonnes of ore), 30 units of 59 tonnes and a bucket capacity of 4.6-3. Today, Zhalyou strikes more than 307,000 tons of ore (93,000 tons of 0.5% copper ore) and uses 78 154-ton overhead cables to assist motor vehicles and power shovels 19.2-3.3 and 9.1-3. The current consolidated data of the mine is shown in the following table.