晋南选铁尾矿的综合回收利用

COMPREHENSIVE RECOVERY AND UTILIZATION OF MILLTAILINGS FROM IRON-BENEFICATION IN SOUTHERN SHANXI

山西省南部有比较丰富的夕卡岩型铁矿资源，经过大量开采选铁后，形成的尾矿总量达数千万吨。金含量一般在０．３×１０－６～０．７×１０－６，并且大部分为中粗粒金，单体解离度可达７１．５％，可以用重选方法予以回收。为此，开发制造了集金盘重选设备，经生产验证取得了满意的效果，达到了在搅拌的同时富集金的目的，与摇床配套使用，形成了一套较完善的选矿流程，最终可获得１８．１７×１０－６的金精矿产品。

Abundant skarn iron resource hosts in southern Shanxi and the milltailing from the exploration and benefication of iron amounts to millions of tons In the milltailings the content of gold ranges from 0.3×10^-6to 0.7×10^-6 The particle size of gold mainly varies between middle and coarse and the dissocation degree is up to 71.5% To recover gold by means of gravitybenefication method, a new equipment, named goldenriched disc, is invented It has been proved to be satisfactory to enrich the gold in milltailings during stirring A gold fineore product, which contains 18.17×10^-6 gold, can be obtained by combining with the oscillating table