某难选低品位铁矿石“磁浮联合”选矿工艺研究  

Experimental Study on the"Magnetic Separation-flotation"Combined Process for a Refractory Low-grade Iron Ore

作　　者：万鹏 解志锋 丁利 何丽平 卓儒明 WAN Peng;XIE Zhifeng;DING Li;HE Liping;ZHUO Ruming(SLon Magnetic Separator Co.,Ltd.,Ganzhou Jiangxi 341000,China)

机构地区：[1]赣州金环磁选科技装备股份有限公司,江西赣州341000

出　　处：《佳木斯大学学报（自然科学版）》2024年第11期139-142,共4页Journal of Jiamusi University：Natural Science Edition

摘　　要：针对某难选低品位铁矿石的矿物学特征,采用“高压辊磨—SLon大颗粒强磁预先抛废—磨矿—SLon强磁除杂—反浮选脱硅提精”的联合工艺进行选矿实验,结果表明,在原矿含Fe 35.75%、含SiO_(2)36.14%的基础上,可获得TFe品位66.12%、SiO_(2)品位为2.06%、Fe回收率为62.48%的高品质铁精矿,大颗粒预选抛废获得的尾料可作为建筑用材,实现了该难选低品位铁矿石的综合利用。Based on the mineralogical characteristics of a difficult to select low-grade iron ore,a mineral processing experiment was conducted using the"high-pressure roller milling-SLon large particle strong magnetic pre disposal-grinding-SLon strong magnetic impurity removal-reverse flotation desilication and refinement"process.The results show that under the optimal conditions,high-quality iron concentrate with TFe grade of 66.12%,SiO_(2) grade of 2.06%,and Fe recovery rate of 62.48%can be obtained on the basis of Fe content of 35.75%and SiO_(2) content of 36.14%in the original ore.The tailings obtained from large particle pre selection and disposal can be used as building materials.The comprehensive utilization of difficult to select low-grade iron ore has been achieved.

关 键 词：铁矿石 预选抛废 SLon高梯度磁选机 反浮选脱硅 磁浮联合 

分 类 号：TD951[矿业工程—选矿]