某大鳞片石墨实验室选矿试验及中试验证  

The lab test research and pilot testvalidation of mineral processing technology for a large flake graphite ore

作　　者：刘海营 余悦 刘伟鹏 钱志博 王金玲 LIU Hai-ying;YU Yue;LIU Wei-peng;QIAN Zhi-bo;WANG Jin-ling(BGRIMM Tec hnology Group,Beijing 102628,China;BGRIMM Machinery&Automation Technology Ca.Ltd.,Beijing 100160,China)

机构地区：[1]矿冶科技集团有限公司,北京102628 [2]北矿机电科技有限责任公司,北京100160

出　　处：《矿冶》2023年第1期27-31,37,共6页Mining And Metallurgy

基　　金：“十三五”固废资源化专项课题(2020YFC1909603)。

摘　　要：某天然鳞片石墨矿固定碳含量高,鳞片粒度大。为保护石墨大鳞片,进行了不同搅拌磨转速和再磨介质的开路试验,确定了选矿工艺流程和关键参数,最佳工艺参数下石墨精矿固定碳含量96.61%、固定碳回收率85.72%、精矿中+0.15 mm粒级产率62.76%。应用连续型XCF/KYF浮选机、GMJ立式搅拌磨,在1 t/d的中试线实现了选矿工艺的放大,并带矿连续运行,优化后中试试验的指标为:精矿固定碳含量96.84%、固定碳回收率80.53%、精矿中+0.15 mm粒级产率59.78%。研究为同类型大鳞片石墨选矿厂的工程化实施提供了借鉴和指导,有助于大鳞片石墨矿的系统性、科学化开发。A natural flake graphite ore has high fixed carbon content and coarse flake particle size.Focusing on the graphite flake protection, the open-circuit tests were carried out with different rotation speed(RPM)and regrinding medium of stirred mill, and the mineral process flowsheet and key parameters were determined.The results of lab test are obtained as following: the fixed carbon content reaches 96.61% and fixed carbon recovery is 85.72% and the yield of +0.15 mm size fraction is 62.76%.XCF/KYF flotation machine and GMJ vertical stirred mill were used to enlarge the mineral processing technology of the lab on the 1 t/d pilot-scale line and run continuously, the graphite concentrate was obtained by optimized pilot tests with the fixed carbon content 96.11% and fixed carbon recovery 80.53%,the yield of +0.15 mm size fraction 59.78%.This study provides technical support for the engineering practice and contributes to the systematic and scientific development for the same type large flake graphite ores.

关 键 词：大鳞片石墨 KYF/XCF浮选机 GJM搅拌磨 中试 再磨 

分 类 号：TD97[矿业工程—选矿]