摘要
为高效开发利用淮北某铁矿资源,在矿石性质研究的基础上进行了选矿试验研究及选矿厂设计。选矿试验推荐采用阶段磨矿—弱磁选工艺流程,可得到铁品位65.79%、回收率93.55%的铁精矿;选矿厂设计采用两段一闭路破碎、湿式预选—两段磨矿、阶段磨选流程,在一段磨矿细度-0.074 mm55%,二段磨矿细度-0.074 mm90%的情况下,通过三段磁选作业,可获得铁品位65.00%、回收率93.55%的铁精矿,并对干选废石及尾砂进行综合利用,提高了选矿厂综合效益。
In order to efficiently develop and utilize an iron ore resource in Huaibei,based on the study of ore properties,beneficiation test and concentrator design were carried out.The stage grinding-low intensity magnetic separation process is recommended in the beneficiation test,and the iron concentrate with iron grade of 65.79%and recovery of 93.55%can be obtained.The design of the concentrator for the iron mine adopts two stage closed circuit crushing,wet preconcentration-two stage grinding,stage grinding and separation process.Under the condition of one stage grinding fineness-0.074 mm 55%and two stage grinding fineness-0.074 mm 90%,the iron concentrate with iron grade of 65.00%and recovery rate of 93.55%can be obtained through three stage magnetic separation operation.The comprehensive utilization of dry separation waste rock and tailings improves the comprehensive benefits of the concentrator.
作者
薛晨
XUE Chen(Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.;National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co.,Ltd.;State Key Laboratory of Safety and Health for Metal Mine)
出处
《现代矿业》
CAS
2023年第1期191-194,共4页
Modern Mining
关键词
铁矿
选矿厂设计
磁选
综合利用
iron ore
concentrator design
magnetic concentration
comprehensive utilization
