四道沟Ⅷ矿体铁矿石磁化焙烧-磁选试验研究  

Experimental Study on Magnetization Roasting and Magnetic Separation of Iron Ore from SidaogouⅧOrebody

作　　者：白刚刚 张红军 雷鹏飞[1] 蔡斌 张小兵 BAI Ganggang;ZHANG Hongjun;LEI Pengfei;CAI Bin;ZHANG Xiaobing(Jiuquan Iron&Steel(Group)Co.Ltd.,Hydrogen Metallurgy Research Institute,Jiayuguan 735100,China)

机构地区：[1]酒泉钢铁(集团)有限责任公司氢冶金研究院,甘肃嘉峪关735100

出　　处：《甘肃冶金》2024年第1期6-10,共5页Gansu Metallurgy

基　　金：甘肃省科技计划(20ZD7GB013);嘉峪关市科技计划(20-01)。

摘　　要：目前四道沟选矿厂选矿工艺为干选-磨矿-湿式磁选,因矿石中赤铁矿、菱铁矿、褐铁矿等弱磁性矿含量较高,精矿回收率仅为34.87%,金属流失较为严重。为提高精矿回收率,增加经济效益,对四道沟Ⅷ矿体原矿进行磁化焙烧-磁选试验研究,原矿经焙烧后,精矿回收率可达64.07%,较原矿直接磨选回收率提高29.2个百分点,该工艺产业化后有望大幅提高选矿厂经济效益。At present,the beneficiation process of Sidaogou Concentrator is dry separation-grinding wet magnetic separation.Due to the high content of hematite,siderite,limonite and other weak magnetic minerals in the ore,the recovery rate of concentrate is only 34.87%,and the metal loss is relatively serious.In order to improve the recovery rate of concentrate and increase economic benefits,the magnetic roasting and magnetic separation test study was conducted on the raw ore of SidaogouⅧorebody.After the raw ore is roasted,the recovery rate of concentrate can reach 64.07%,which is 29.2 percentage points higher than the recovery rate of direct grinding of raw ore.The industrialization of this process is expected to greatly improve the economic benefits of the concentrator.

关 键 词：难选铁矿 磁化焙烧 分层布料 磁选 

分 类 号：TD951[矿业工程—选矿]