摘要
攀西地区钛铁矿资源丰富,但在细磨选别过程中易产生过粉碎现象,导致大量超细粒级钛铁矿以矿泥形式损失。为提高资源利用率,采用CZ100型旋流器对-38μm超细粒级钛铁矿进行浓缩脱泥试验,系统研究了旋流器直径、沉砂口直径、溢流管直径、插入深度、锥角、给矿压力及浓度等参数对分级效果的影响。实验室试验确定了最优结构参数组合,并进一步开展工业试验验证。结果表明:在沉砂口直径8 mm、溢流管直径32 mm、给矿压力大于0.35 MPa条件下,工业连续72 h运行可获得沉砂浓度34.99%、产率63.13%、TiO_(2)回收率68%的稳定指标,沉砂+0.005 mm粒级占比达95.24%,有效实现了超细粒级钛铁矿的高效浓缩脱泥。研究结果为攀西地区超细粒级钛铁矿的回收利用提供了可行的技术路径。
Ilmenite resources is rich in western Panzhihua area,but it is easy to produce over crushing phenomenon in the process of fine grinding and separation,which leads to the loss of a large number of ultra-fine ilmenite in the form of slime.In order to improve the utilization rate of resources,the concentration and desliming test of-38µm ultra-fine ilmenite was carried out by using CZ100 cyclone.The effects of cyclone diameter,grit diameter,overflow pipe diameter,insertion depth,cone angle,feeding pressure and concentration on the classification effect were systematically studied.The optimal combination of structural parameters was determined by laboratory test,and further industrial test verification was carried out.The results show that under the conditions of 8 mm grit mouth diameter,32 mm overflow pipe diameter and ore feeding pressure over 0.35 MPa,the industrial continuous operation for 72 h can obtain the stability index of 34.99%grit concentration,63.13%yield and 68%Ti0_(2)recovery rate.The proportion of grit+0.005 mm particle size reaches 95.24%,which effectively realizes the efficient concentration and desliming of ultra-fine ilmenite.The research results provide a feasible technical path for the recovery and utilization of ultra-fine ilmenite in western Panzhihua area.
作者
姜克冰
JIANG Kebing(Sichuan Vanadium and Titanium Industry Investment and Development Co.,Ltd.)
出处
《现代矿业》
2025年第12期188-192,共5页
Modern Mining
