采用常规颚式破碎机和高压辊磨机破碎设备,开展两种不同破碎方式下金矿石柱浸试验,研究不同破碎方式对较粗粒级金矿石堆浸效果的影响,并结合破碎产品特性及显微分析技术,进一步探究高压辊磨方式在金矿石处理中的作用机理.结果表明:高压辊磨机较常规颚式破碎机产品粒度略细,颗粒表面裂纹更加丰富、堆浸体系饱和含水率较高,高压辊磨机对改善堆浸体系渗透效果和提高浸出率的效果明显;在相同条件下,试验金矿石浸出率提高约3.5%~6.8%,浸出剂耗量减少3.2%~l1.3%.
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