哈密超贫钒钛磁铁矿高效磁选预选抛尾技术研究

现代矿业 ›› 2026, Vol. 42 ›› Issue (02): 70-73.

哈密超贫钒钛磁铁矿高效磁选预选抛尾技术研究

李嘉¹赵刘闯²郭小飞³

1. 中科聚智（大连）科技有限公司；2. 新疆工程学院矿业工程与地质学院； 3. 辽宁科技大学矿业工程学院

出版日期:2026-02-25 发布日期:2026-03-10

Research on High Efficiency Magnetic Separation and Pre-concentration Tailings Discarding Technology for Ultra Lean Vanadium Titanium Magnetite in Hami

1. Zhongke Juzhi（Dalian）Technology Co.，Ltd.；2. College of Mining Engineering and Geology，Xinjiang Institute of Technology；3. School of Mining Engineering，University of Science and Technology Liaoning

Online:2026-02-25 Published:2026-03-10

摘要/Abstract

摘要： 哈密某钒钛磁铁矿 TFe、mFe 和 TiO2含量分别为 12.07%、5.99% 和 2.06%，属于超贫钒钛磁铁矿。ZKGC 型粉矿磁选机采用高性能复合稀土永磁材料和聚磁磁系设计，筒体表面磁感应强度为 560 mT，筒体转速最高可达 6.2 m/s。采用新型粉矿干选机对高压辊磨超细碎后的超贫钒钛磁铁矿进行预选抛尾试验。结果表明，在给料粒度为 P80=1.97 mm、干选机磁偏角为 11°、筒体转速为 4.6 m/s 时，单台粉矿干选机处理能力为 279.82 t/h，抛尾产率可达 39.03%，预选精矿 TFe、mFe 和 TiO2的回收率分别可达 71.35%、94.36% 和 71.02%。研究结果能够大幅降低超贫钒钛磁铁矿的选矿成本，为同类资源的高效利用提供新的技术路径。

关键词: 超贫钒钛磁铁矿, 干式磁选预选, 高场强, 高转速

Abstract: A vanadium-titanium magnetite deposit in Hami contains 12.07% Total Iron（TFe）， 5.99% Magnetic Iron（mFe），and 2.06% Titanium Dioxide（TiO₂），classifying it as an ultra-poor vanadi⁃ um-titanium magnetite ore. The ZKGC-type fine ore magnetic separator employs high-performance com⁃ posite rare-earth permanent magnetic materials and magnetic concentrating design，achieving a magnetic induction intensity of 560 mT on the drum surface with a maximum drum rotational speed of 6.2 m/s. Pre�concentration and tailings discarding tests were conducted on the ultra-fine crushed ore（via high-pressure grinding roll）using this novel dry magnetic separator. The results indicate that under the conditions of a feed particle size of P80=1.97 mm，a magnetic deflector angle of 11°，and a drum speed of 4.6 m/s，the sin⁃ gle-unit processing capacity reaches 279.82 t/ h，with a tailings discarding rate of 39.03%. The recovery rates of TFe，mFe，and TiO₂ in the pre-concentrate reached 71.35%，94.36%，and 71.02%，respective⁃ ly. The study demonstrates a significant reduction in mineral processing costs for ultra-poor vanadium-tita⁃ nium magnetite ores，providing a new technological pathway for the efficient utilization of similar resources.

Key words: ultra-low vanadium titanium magnetite, dry magnetic separation pre-concentration, high field strength, high drum speed

李嘉, 赵刘闯, 郭小飞. 哈密超贫钒钛磁铁矿高效磁选预选抛尾技术研究[J]. 现代矿业, 2026, 42(02): 70-73.

LI Jia ZHAO Liuchuang GUO Xiaofei. Research on High Efficiency Magnetic Separation and Pre-concentration Tailings Discarding Technology for Ultra Lean Vanadium Titanium Magnetite in Hami[J]. Modern Mining, 2026, 42(02): 70-73.

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