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众所周知,我省在砂金矿生产中,一般都使用常规的溜槽回收黄金,收率仅40％—50％,效果很不理想。笔者认为,对此推行塑料毛毡是提高回收率的一种简便而有效的方法。
As we all know, our province in the production of sand and gold, the general use of conventional chute recovery of gold, the yield was only 40% -50%, the effect is not satisfactory. The author believes that the implementation of plastic felts is to improve the recovery rate of a simple and effective method.