某难选铁矿磁—重—浮联合选矿试验研究
Study on Magnetic Separation-Gravity Separation-Flotation Combined Beneficiation Test for a Refractory Iron Mine
张斌 1陈雪 1张凛 2赛明雨 2陈洲2
作者信息
- 1. 中钢设备有限公司,北京 100000
- 2. 中钢集团马鞍山矿山研究总院股份有限公司,安徽 马鞍山 243000
- 折叠
摘要
为确定某难选铁矿石的更高效开发利用工艺,基于矿石性质研究开展了详细的选矿工艺试验.结果表明:① 矿石中主要有用成分铁品位为 47.26%,铁主要分布于赤褐铁矿中,其次分布于磁铁矿中;主要杂质SiO2 含量为 28.69%,有害成分S、P含量很低.② 矿石采用一段磨矿—弱磁选—强磁选—螺旋溜槽重选—二段磨矿—阳离子反浮选流程处理,获得了产率 55.26%、铁品位 65.32%、铁回收率 76.86%的铁精矿,精矿品质达到了业主要求,可作为选厂技术改造的依据.
Abstract
In order to determine the development and utilization process of a certain refractory iron ore,detailed benefici-ation process test was carried out based on the ore property study.The results showed that:① The grade of iron,the main use-ful component in the ore,is 47.26%,and iron is mainly distributed in hematite,followed by magnetite.The main impurity SiO2 content is 28.69%,the harmful elements S and P content are very low.② The ores were treated with first stage grinding,low intensity magnetic separation,strong magnetic separation,spiral chute gravity separation,second stage grinding and cationic re-verse flotation.Iron concentrate with yield of 55.26%,iron grade of 65.32%and iron recovery rate of 76.86%was obtained.The quality of the concentrate meets the requirements of the owner and can be used as the basis for the technical transformation of plant selection.
关键词
赤铁矿/褐铁矿/细粒级/阶段磨矿/反浮选Key words
hematite/limonite/fine grain fraction/stage grinding/reverse flotation引用本文复制引用
基金项目
"十四五"国家重点研发计划资助项目(2021YFC2902400)
出版年
2024
NETL
NSTL
万方数据