矿产综合利用Issue(3)：26-30,5.DOI:10.3969/j.issn.1000-6532.2013.03.006
氧硫混合铅锌矿的选择性磨矿研究与实践
Research and Practice of Selective Grinding of Oxide-sulphide Mixed Lead-zinc Ore
摘要
Abstract
The two-stage closed-circuit grinding was adopted by Huize mining plant.The mineral processing indexes are not ideal for the high content of intergrown lead and zinc.According to the mechanical properties of ore resistance crushing and size characteristic of the feed from mill,combined with laboratory research on the grinding media size,installation scheme and media shape which influences selective grinding of lead-zinc mine,the appropriate installation scheme was determined and applied in mining plant.The research showed that the line contact crushing was realized by using cast iron segment instead of steel balls in the two stage grinding process of primary grinding and regrinding rough concentrate.Through the gradual adjustment of grinding process,the selective grinding requirement of the lead-zinc ore was and the content of over crushing-0.025 was reduced.The mineral processing indexes has been improved month by month and the content of the ore intergrowth was reduced.Meanwhile,the lead grade in zinc concentrate was declined to10％,and in sulfur concentrate to 30％.the grade of the tailings was decreased obviously and the loss of the metal in tailing was reduced.关键词
氧硫混合铅锌矿/选择性磨矿/粗磨/粗精矿再磨/铅锌精矿互含Key words
Oxide-sulphide mixed lead-zinc mine/Selective grinding/ Primary grinding/ Regrinding rough concentrate/ Intergrowth of Pb-Zn cncentrate分类
矿业与冶金引用本文复制引用
罗春梅,肖庆飞,段希祥..氧硫混合铅锌矿的选择性磨矿研究与实践[J].矿产综合利用,2013,(3):26-30,5.基金项目
云南省教育厅科学研究(2011Y115) （2011Y115）
云南大学校人才培养(2011YB46) （2011YB46）
