对邦铺钼铜矿石进行高压辊磨(HPGR)和颚式破碎(JC),然后对两种产品进行磨矿—浮选试验,采用扫描电镜(SEM)研究矿石的高压辊粉碎特性,采用单体解离度分析仪(MLA)研究磨矿产品的解离特性,并从药剂用量等方面研究矿石的最佳磨矿细度和浮选工艺条件.结果表明:高压辊磨—球磨—浮选工艺适宜的磨矿细度为粒度小于0.074 mm的颗粒含量为65%,颚式破碎—球磨—浮选工艺适宜的磨矿细度为粒度小于0.074 mm的颗粒含量为75%;在适宜磨矿细度和药剂制度下,高压辊磨—球磨较颚式破碎—球磨浮选效果好,钼粗精矿钼品位提高0.83%,钼回收率提高1.05%;铜粗精矿铜品位提高0.23%,铜回收率提高2.66%;高压辊磨对邦铺钼铜矿石发生选择性粉碎现象.球磨对高压辊磨产品发生选择性解离现象,提出“矿石高压辊选择性粉碎—球磨选择性解离—浮选”技术方案.
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