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用一台直径 0 .6m的磨机进行分批试验 ,模拟了 1次和 2次全自磨磨矿。在试验中 ,通过将小砾石破碎至 12 mm并将破碎的物料返回到 1次磨机中 ,可以显著地提高 1次磨机的处理能力。将砾石尺寸降低到 2 0 /2 8mm,可以显著提高 2次磨机的磨矿效率 (以 k Wh/t-75 um产品或功指数测定
A batch test with a 0.6m diameter mill simulated 1 and 2 full-scale grinding. In the test, the capacity of a mill can be significantly increased by crushing small gravels to 12 mm and returning the crushed material to a mill. Reducing the size of the gravel to 20/28 mm can significantly improve the grinding efficiency of the 2-shot mill (measured in k Wh / t-75 um product or work index