从磨矿性能角度解决大鳞片石墨的保护问题  

Protection of Large-scale Graphite by Optimizing Grinding Performance

作　　者：康健[1,2] 黄鹏 刘爽[1,2] 白丁 李健[1,2] 林璠 林楠[1,2] KANG Jian;HUANG Peng;LIU Shuang;BAI Ding;LI Jian;LIN Fan;LIN Nan(Key Laboratory of Rare and Rare Earth Mineral Exploration and Comprehensive Utilization of Ministry of Land and Resources,Wuhan 430034,Hubei,China;Hubei Geological Research Laboratory,Wuhan 430034,Hubei,China)

机构地区：[1]国土资源部稀土稀有稀散矿产勘查及综合利用重点实验室,湖北武汉430034 [2]湖北省地质实验测试中心,湖北武汉430034

出　　处：《矿冶工程》2020年第2期55-59,共5页Mining and Metallurgical Engineering

摘　　要：针对国外某大鳞片石墨矿,结合磨矿细度与浮选精矿筛析数据,在保护矿石中大鳞片石墨的同时,简化了工艺流程,最终采取阶段磨矿、一粗两精一扫-筛分分级的浮选工艺流程,获得了产率4.37%、品位92.81%、回收率79.59%的大鳞片石墨精矿,以及产率0.80%、品位91.23%、回收率14.29%的细鳞片石墨精矿。Aiming at an overseas graphite ore,the process was simplified based on the analyses of the grinding fineness and the particle size of flotation concentrate by screening,while protecting the large-scale graphite sheets therein.A flowsheet,consisting of a staged grinding process,a flotation process with one stage of roughing,one stage of scavenging and two stages of cleaning,and a screening process,was adopted in the experiment,resulting in the obtained concentrate of large-scale graphite sheets with yield,grade and recovery of 4.37%,92.81%and 79.59%respectively,and the obtained concentrate of fine sheets with yield,grade and recovery of 0.80%,91.23%and 14.29%,respectively.

关 键 词：石墨 大鳞片石墨 阶磨阶选 磨矿 浮选 筛分 

分 类 号：TD92[矿业工程—选矿]