攀西某钒钛磁铁矿石铁品位对铁精矿品质的影响研究  

Study on Influence of Iron Grade of a Vanadium-titanium Magnetite Ore in Western Panzhihua on Iron Concentrate Quality

作　　者：吴雪红 王建平 张愚 WU Xuehong;WANG Jianping;ZHANG Yu(Pangang Group Mining Company Design Research Institute;State Key Laboratory of Comprehensive Utilization of Vanadium and Titanium Resources)

机构地区：[1]攀钢集团矿业有限公司设计研究院,四川省攀枝花市617063 [2]钒钛资源综合利用国家重点实验室

出　　处：《现代矿业》2024年第2期167-169,172,共4页Modern Mining

摘　　要：为提高攀枝花矿区不同品质矿石资源开发的科学性,对现场4种不同品位梯度的有代表性矿样进行了原矿铁品位与铁精矿品质关系研究。结果表明:①原矿铁品位降低,钛磁铁矿、钛铁矿的嵌布粒度均变细;②Fe品位较高的原矿,TiO_(2)和V_(2)O_(5)品位也较高,有害成分S含量也较高、但P含量较低,其他杂质CaO、MgO、Al_(2)O_(3)、SiO_(2)含量总体呈下降趋势;③Fe品位较高的原矿,钛磁铁矿中铁含量及分布率均较高,即钒钛磁铁矿品位较高,铁精矿理论回收率也较高;④Fe品位较高的原矿,钛磁铁矿、钛铁矿和硫化矿含量均较高,钛铁矿与钛磁铁矿含量之比下降;⑤原矿Fe品位越低,矿石越易磨;⑥TFe品位较高的原矿,铁精矿产率也较高,精矿TiO_(2)品位、S含量也较高,表明原矿品位较低的矿石所生产的铁精矿,其品质更有利于后续冶炼。In order to improve the scientific development of different quality ore resources in Panzhi-hua mining area,the relationship between raw ore iron grade and iron concentrate quality of on-site four rep-resentative ore samples with different grade gradients was studied.The results show that:①The iron grade of the raw ore decreases,and the disseminated particle size of titanium magnetite and ilmenite becomes finer;②The raw ore with higher Fe grade has higher TiO_(2) and V_(2)O_(5) grade,higher harmful component S content,lower P content.The content of other impurities CaO,MgO,Al_(2)O_(3) and SiO_(2) shows a downward trend;③The raw ore with higher Fe grade has higher iron content and distribution rate in titanium magnetite,that is,the grade of vanadium-titanium magnetite is higher and the theoretical recovery rate of iron concentrate is high-er;④For the raw ore with high Fe grade,the contents of titanium magnetite,ilmenite and sulfide ore are high,and the content ratio of ilmenite to titanium magnetite decreases;⑤The lower the Fe grade of the raw ore is,the easier the ore is to grind;⑥The raw ore with higher TFe grade has higher yield of iron concentrate,higher TiO_(2) grade and S content of concentrate,which indicates that the quality of iron concentrate produced by raw ore with lower grade is more conducive to subsequent smelting.

关 键 词：钒钛磁铁矿 钛铁矿 弱磁选 铁精矿 

分 类 号：TD951[矿业工程—选矿]