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南非脉金和其它贵金属(如铂)脉状矿床的开采,长期以来一直是一种劳动最密集和劳动强度最大的开采方式。近几年来,为了提高金矿开采技术效率,南非试验几种研究项目耗费了数百万美元资金。目前正在试验的最有希望的三个项目是:液压冲击式连续采矿机采矿、采场机械化配套设备和地下磨矿及浮选。去年每吨矿石的平均选矿成本为49.12美元,前年为40.42美元,因此生产成本一年提高了21.5％。哈特比斯特方丁采金公司
The extraction of vein gold and other precious metal (such as platinum) vein deposits in South Africa has long been one of the most labor-intensive and labor-intensive methods of exploitation. In recent years, in order to improve the technical efficiency of gold mining, South Africa has spent several millions of dollars on several pilot projects. The three most promising projects currently under test are: hydraulic impact continuous mining machine mining, stope mechanization equipment and underground grinding and flotation. The average beneficiation cost per ton of ore last year was $ 49.12, compared with $ 40.42 the previous year, so production costs increased 21.5% year on year. Hart Bester Party D gold mining company