SLon磁选机分选超细粒级钛铁矿的试验的研究.pdf

摘 要 攀枝花矿业公司选矿厂选铁尾矿中富含钛铁矿，现有回收工艺对其中细粒级钛铁矿回 收效果不好。这部份钛铁矿作为尾矿排放造成金属钛资源的巨大浪费。不管从经济上还是 可持续发展战略上，回收这部份钛金属势在必行、刻不容缓、意义重大。 本文综述了国内外钛资源分布情况以及国内外选钛发展现状，对攀钢细粒级钛铁矿做 了工艺矿物学研究并采用新型高效选矿设备-SLon 立环脉动高梯度磁选机（简称 SLon 磁选 机）做了强磁选矿试验研究。 该细粒级钛铁矿品位低、粒度分布不均匀，并且钛铁矿和脉石中的普通辉石磁性和比 重相差不大。由此可见，该细粒级钛铁矿实属难选钛铁矿。试验中磁介质采用 Φ2mm （加 密）磁介质、大冲程大冲次（冲程为 35mm，冲次为 370rpm ）以及选别流程为一粗一扫一 精一精扫试验流程。在入选原矿粒度为-0.074mm，原矿品位 8.05% TiO2 的情况下获得最终 精矿品位为 20.03 %TiO ，回收率为 50.49% TiO ，达到了预期效果。 2 2 试验结果表明采用新型高效选矿设备-SLon 立环脉动高梯度磁选机对攀钢细粒级钛铁 矿的回收是行之有效的，并起了关键和主导作用。本次试验研究立足攀钢选钛厂长远利益， 在试验研究中取得了优异成果；填补了攀钢选钛厂超细粒级钛铁矿的选矿空白。为攀钢选 钛厂对细粒级钛铁矿实现工业上的回收应用提供依据。 关键词:细粒级，钛铁矿，SLon 立环脉动高梯度磁选机 II Abstract According to the current situation, Pangang Ilmenite concentration plant can get effective recycling on the +0.019mm Ilmenite ore, while it still under technology study on the -0.019mm Ilmenite ore recycle. This is part of the ilmenite tailings discharge as a result titanium enormous waste of resources.Whether from the economic or the strategy of sustainable development, recycling of this part of the titanium metal is imperative, urgent, of great significance. This paper summarized the titaniferous resources distribution situation and choose titanium development situation of at home and aboard, did Mineralogical study process ultra-fine grain of PZH steel grade titanium iron and adopt a new highly efficient mineral processing equipment-SLon vertical ring pulsating high gradient magnetic separator (hereinafter referred to SLon magnetic machine) has done a magnetic mineral was studied. The ultrafine grained titanium iron ore grade is low, particle size distribution and The Ilmenite ore and