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本文分析了湖南砂金矿床及砂金的开采情况。根据国内砂金矿开采经验和参考国外资料,对砂金矿开采的发展方向,提出了见解,即优先发展现代河床及沙洲砂金矿的开发,重点发展钢绳——桩桩式链斗采金船的开采方法。对于河谷冲积等类型的砂金矿,则以发展拖拉铲运机,推土机为主进行剥离,采用拖拉铲运机、前端装运机以及小型挖掘机进行采矿,配以移动式粗选厂。对如何正确地规划开采矿点也进行了论述,并提出了控制砂矿开采所允许的金属最低品位及最大剥采比的分析式。
This paper analyzes the gold and gold deposits in Hunan and gold mining situation. According to the experience of domestic gold and gold mining and reference to foreign materials, the author puts forward some opinions on the development direction of gold and gold mining, that is, give priority to the development of modern riverbed and Shazhou sand gold deposit, and focus on the development of steel rope-pile-pile chain bucket mining Gold ship mining methods. For river alluvial gold deposits and other types of gold, the development of the main scraper scraper, bulldozer stripping, the use of tractor scraper, front loader and small excavators for mining, supported by mobile roughing plant. How to correctly plan the mining sites is also discussed, and the analytical method of controlling the minimum grade of metal and the maximum stripping ratio allowed by the exploitation of the placer ore is put forward.