矿产保护与利用
礦產保護與利用
광산보호여이용
CONSERVATION AND UTILIZATION OF MINERAL RESOURCES
2014年
2期
44-48
,共5页
袁致涛%马玉新%毛卫东%李丽匣
袁緻濤%馬玉新%毛衛東%李麗匣
원치도%마옥신%모위동%리려갑
铁尾矿%磁铁矿%预富集%弱磁选
鐵尾礦%磁鐵礦%預富集%弱磁選
철미광%자철광%예부집%약자선
iron tailings%magnetite%preconcentration%low intensity magnetic separation
本钢集团马耳岭选矿厂尾矿的TFe品位为8.87%,以硅酸铁、赤褐铁矿和磁铁矿三种矿物形式存在的铁含量分别为5.37%、1.30%、1.10%,磁铁矿为主要回收对象。经过系统试验研究,确定了强磁预富集抛尾-细磨-三次弱磁选的尾矿再选工艺,最终获得了精矿铁品位51.39%,磁性铁回收率81.89%的尾矿再选指标,为马耳岭选矿厂尾矿中磁性铁的回收提供了再选方案。
本鋼集糰馬耳嶺選礦廠尾礦的TFe品位為8.87%,以硅痠鐵、赤褐鐵礦和磁鐵礦三種礦物形式存在的鐵含量分彆為5.37%、1.30%、1.10%,磁鐵礦為主要迴收對象。經過繫統試驗研究,確定瞭彊磁預富集拋尾-細磨-三次弱磁選的尾礦再選工藝,最終穫得瞭精礦鐵品位51.39%,磁性鐵迴收率81.89%的尾礦再選指標,為馬耳嶺選礦廠尾礦中磁性鐵的迴收提供瞭再選方案。
본강집단마이령선광엄미광적TFe품위위8.87%,이규산철、적갈철광화자철광삼충광물형식존재적철함량분별위5.37%、1.30%、1.10%,자철광위주요회수대상。경과계통시험연구,학정료강자예부집포미-세마-삼차약자선적미광재선공예,최종획득료정광철품위51.39%,자성철회수솔81.89%적미광재선지표,위마이령선광엄미광중자성철적회수제공료재선방안。
The grade of TFe in tailings of the Maerling dressing plant of Benxi steel group was 8.87%,and the content of iron silicate,hematite (limonite) and magnetite was 5.37%、1.30%and 1.10%respectively,and magnetite was the main mineral to be recovered .The flow of strong magnetic pre-enrichment tail -fine grinding -three stage weak magnetic separation was deter-mined through tests,the final grade of concentrate was 51.39%,and the recovery of magnetic iron was 81 .89%,providing a reprocessing method for the recovery of magnetic iron in the tailings of Maerling dressing plant .