鞍千选矿厂弱磁选精矿制备高品质铁精矿试验研究  

Experimental Study on the Preparation of High-quality Iron Concentrate from Weak Magnetic Separation Concentrate of Anqian Concentrator

作　　者：郑宏斌 侯英 吕虹序 谢冬冬 ZHENG Hongbin;HOU Ying;LV Hongxu;XIE Dongdong(School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]辽宁科技大学矿业工程学院,辽宁鞍山114051

出　　处：《矿业工程》2025年第2期38-41,共4页Mining Engineering

基　　金：辽宁省教育厅项目(编号:LJKFZ20220195)。

摘　　要：为提升鞍千选矿厂的选矿效率,对弱磁选精矿开展了磁选试验研究,重点分析了磁感应强度和再磨细度等关键参数对磁选性能的影响。结果表明,弱磁选精矿中的磁铁矿和石英连生关系紧密,弱磁选精矿直接磁选最高可得62.81%的铁精矿品位;当细筛再磨细度达-0.038 mm占73.74%时,在160 mT的磁感应强度下,铁精矿品位可达70.41%,回收率高达93.90%。鞍千选矿厂的弱磁选精矿具有显著的可选性优势,为鞍千选矿厂工艺流程的优化提供了理论依据和技术指导。To improve the mineral processing efficiency of Anqian concentrator,magnetic separation tests were carried out on the weak magnetic concentrate,with a focus on analyzing the influence of key parameters such as magnetic induction intensity and regrinding fineness on the magnetic separation performance.The results indicate that there is a close intergrowth relationship between magnetite and quartz in the weak magnetic concentrate.Direct magnetic separation of this concentrate can achieve a maximum iron concentrate grade of 62.81%.When the fine screening regrinding fineness reaches 73.74%passing-0.038 mm,under a magnetic induction intensity of 160 mT,the iron concentrate grade can reach 70.41%,with a recovery rate as high as 93.90%.The weak magnetic concentrate from the Anqian concentrator exhibits significant advantages in separability,providing theoretical basis and technical guidance for the optimization of the process flow at the Anqian concentrator.

关 键 词：弱磁选精矿 磁选 磁铁矿 可选性 

分 类 号：TD951[矿业工程—选矿]