捕收剂HYSIC强化某磁铁矿制备超纯铁精矿试验研究  

Test study on preparation of ultra-pure iron concentrate strengthened by using collector HYSIC in a magnetite ore

作　　者：于慧梅 侯英 陈中航 李‧晨 YU Huimei;HOU Ying;CHEN Zhonghang;LI Chen(Journal Editorial Department,Guizhou University,Guiyang 550025,Guizhou,China;School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114051,Liaoning,China)

机构地区：[1]贵州大学学报编辑部,贵州贵阳550025 [2]辽宁科技大学矿业工程学院,辽宁鞍山114051

出　　处：《矿山机械》2025年第3期39-45,共7页Mining & Processing Equipment

基　　金：辽宁省自然科学基金项目(20180550198);辽宁省教育厅项目(LJKFZ20220195,2019LNQN09,2016TSPY12)

摘　　要：为了优化超纯铁精矿制备工艺,降低铁精矿中的二氧化硅含量,以获得可利用的超纯铁精矿,分析了磁铁矿和石英的赋存特点,讨论了磨矿细度、磁感应强度、浮选药剂用量等因素对二氧化硅迁移过程的影响。结果表明,超纯铁精矿最优制备工艺为“一段塔磨机磨矿—磁选—捕收剂HYSIC反浮选”。当磨矿细度-0.045 mm含量为95%以上,磁选磁感应强度为80 mT,捕收剂HYSIC粗选用量为60 g/t,一次扫选用量为30 g/t,二次扫选用量为15 g/t时,TFe品位由67.68%提高至72.18%,二氧化硅含量由4.26%降至0.18%,得到了回收率为80.94%的超纯铁精矿。In order to optimize the preparation process of the ultra-pure iron concentrate and reduce the content of silicon dioxide in the iron concentrate to obtain available ultra-pure iron concentrate,the occurrence characteristics of magnetite and quartz were analyzed,and the effects of grinding fineness,magnetic induction intensity and flotation reagent dosage on the migration process of silicon dioxide were discused.The results showed that the optimal preparation process of the ultra-pure iron concentrate was using tower mill for one-stage grinding,followed by the magnetic separation,and then using collector HYSIC for the reverse flotakion.When the grinding finenes of-0.045 mm was more than 95%,the magnetic induction intensity of magnetic separation was 80 mT,the dosage of collector HYSIC for coarse selection was 60 g/t,the dosage for primary scavenging was 30 g/t,and the dosage for secondary scavenging was 15 g/t,the TFe grade was increased from 67.68%to 72.18%o,the silicon dioxide content was reduced from 4.26%to 0.18%,and an ultra-pure iron concentrate with recovery of 80.94%was obtained.

关 键 词：超纯铁精矿 磨矿细度 磁选 塔磨机 反浮选 

分 类 号：TD951[矿业工程—选矿]