摘要
江苏某地石墨矿为低品位大鳞片晶质石墨,对其开展选矿试验研究,完成粗选条件试验、精细分质试验、开路和闭路选矿试验。原矿经“高压辊磨机粉碎,一次粗选,一次扫选,粗精矿经过一次精选后进行分质,分质产品区别再磨再选,中矿集中返回”的闭路选矿后,可获得石墨精矿固定碳品位96.61%,回收率85.52%的选别指标。结果表明该石墨矿具有一定的可选性和利用价值,可为同类石墨矿选矿提供依据和参考。
A graphite mine in a certain area of Jiangsu province is a low-grade large scale crystalline graphite.Mineral processing experiments were conducted on it,including rough selection condition experiments,fine classification experiments,and open and closed circuit mineral processing experiments.After the closed circuit beneficiation of the raw ore,which is crushed by a high-pressure roller mill,undergoes one rough selection,one sweeping selection,and the coarse concentrate is separated after one selection.The separated products are further ground and separated,and the intermediate ore is returned centrally,a fixed carbon grade of 96.61%can be obtained for graphite concentrate,with a recovery rate of 85.52%.The results indicate that the graphite ore has certain selectivity and utilization value,which can provide a basis and reference for the beneficiation of similar graphite ores.
作者
姚维军
刘峰
张洋洋
石林
YAO Wei-jun;LIU Feng;ZHANG Yang-yang;SHI Lin(Geological Exploration Technology Institute of Jiangsu Province,Nanjing 210049,China)
出处
《中国非金属矿工业导刊》
2024年第2期69-72,共4页
China Non-Metallic Minerals industry
基金
江苏省自然资源发展专项资金项目“江苏省新沂市城岗晶质石墨矿普查”(编号:苏财资环〔2022〕27号)
“江苏省东海县双湖晶质石墨矿普查”(编号:苏财资环〔2021〕46号)。
关键词
选矿试验
晶质石墨
石墨精矿
回收率
beneficiation test
crystalline graphite
graphite concentrate
rate of recovery
