云南某低品位难选鲕状赤铁矿选矿工艺研究  

Study on Beneficiation Process of a Low-Grade Refractory Oolitic Hematite Ore in Yunnan

作　　者：王普蓉 徐国印 WANG Purong;XU Guoyin(Public Experimental Teaching Center,Panzhihua University,Panzhihua,Sichuan 617000,China;College of Vanadium and Titanium,Panzhihua University,Panzhihua,Sichuan 617000,China)

机构地区：[1]攀枝花学院公共实验教学中心,四川攀枝花市617000 [2]攀枝花学院钒钛学院,四川攀枝花市617000

出　　处：《矿业研究与开发》2023年第6期197-201,共5页Mining Research and Development

摘　　要：针对云南某低品位鲕状赤铁矿较难磨矿、铁矿物易过粉碎,矿样难以通过选矿方法获得合格铁精矿的问题,开展了选矿初步富集铁的研究,对比了几种选矿回收工艺,得出阶段磨矿阶段选别的单一强磁选工艺和强磁选摇床重选工艺的分选指标最优的结论。试验结果表明:两种优选工艺分别获得了可市销的TFe品位为47.24%、TFe回收率为69.74%的铁精矿和TFe品位为48.71%、TFe回收率为62.70%的铁精矿;所得铁精矿在铁精矿冶炼等工业应用中可与高品位赤铁精矿配矿利用。In view of the problems that a low-grade oolitic hematite ore in Yunnan is difficult to be grinded,the iron ore is easy to be crushed,and it is difficult to obtain qualified iron concentrate through beneficiation methods,a study was carried out on the preliminary enrichment of iron by beneficiation,and several beneficiation recovery processes were compared.It was concluded that both the single high-intensity magnetic separation with stage grinding and stage separation as well as the highintensity magnetic and gravity separation process had the best separation index.The results show that the above two optimized processes have respectively obtained commercially available iron concentrates with a TFe grade of 47.24%and a TFe recovery rate of 69.74%,as well as iron concentrates with a TFe grade of 48.71%and a TFe recovery rate of 62.70%.The obtained iron concentrates can be used in industrial applications such as iron concentrate smelting by blending with high-grade hematite concentrates.

关 键 词：鲕状赤铁矿 单一强磁选 强磁重选 铁精矿 

分 类 号：TD951[矿业工程—选矿]