我国贫铁矿石磁选预选现状及发展趋势

金属矿山 ›› 2016, Vol. 45 ›› Issue (04): 91-94.

我国贫铁矿石磁选预选现状及发展趋势

郭小飞，赵通林

辽宁科技大学矿业工程学院，辽宁鞍山 114051

出版日期:2016-04-15 发布日期:2016-08-16
基金资助:
基金项目国家自然科学基金项目（编号：51574146）。

Application and Development Tendency of Magnetic Separation for Pre-concentration of Lean Iron Ore in China

Guo Xiaofei，Zhao Tonglin

School of Mining Engineering，University of Science and Technology Liaoning，Anshan 114051，China

Online:2016-04-15 Published:2016-08-16

摘要/Abstract

摘要： 介绍了磁选预选技术在贫铁矿石选矿中的应用情况。以高效圆锥破碎机、自磨/半自磨机和高压辊磨机为代表的新型碎磨设备使贫铁矿石的预选粒度有效降低，为预选抛尾提供了有利条件。磁选技术既可以实现贫磁铁矿石粗碎产品（约350~400 mm）的预选抛尾，也可以实现超细碎产品（小于3 mm）的预选抛尾，并可根据矿石性质及现场生产实际采用干式或湿式预选工艺。永磁辊式强磁选机可对中碎或细碎后的弱磁性贫赤铁矿石进行预选，电磁立环脉动高梯度磁选机对细粒级（小于3 mm）贫赤铁矿石的预选效果较好。指出了未来贫铁矿石磁选预选的主要发展趋势为高效碎磨设备和工艺的基础性研究，磁选设备对贫铁矿石性质和生产工艺适应性的研究，弱磁性贫赤铁矿石永磁强磁预选技术的深入研究与推广应用。

关键词: 磁选预选, 预选粒度, 贫磁铁矿石, 贫赤铁矿石

Abstract: The application of pre-concentration technology on beneficiation of lean iron ore was described.Sufficient conditions of pre-concentration for lean iron ore were provided by the effective reduction of the feeding size as the result of the application of new types crushing and grinding machines of which high efficiency cone crusher，AG/SAG and high-pressure grinding roller were the chief representative.Pre-concentration for products of 350~400 mm from coarse crushing and -3 mm from ultra-finely crushing of lean magnetite could be realized by magnetic separation.And dry or wet process of pre-concentration could be determined according to the different processes.High-intensity permanent magnetic separator provides a new way for pre-concentration of lean hematite after middle crushing.Vertical ring pulsating high gradient magnetic separator has a better effect on the pre-concentration for -3 mm lean hematite.The development tendencies in pre-concentration of lean iron ore are investigation of efficient crushing equipment and process，research on adaptability of magnetic separator to the characteristics of lean iron ore and production environment，further research and application of permanent high-intensity magnetic pre-concentration for lean hematite.

Key words: Magnetic pre-concentration, Size of pre-concentration, Lean magnetite ore, Lean hematite ore

郭小飞, 赵通林. 我国贫铁矿石磁选预选现状及发展趋势[J]. 金属矿山, 2016, 45(04): 91-94.

GUO Xiao-Fei, ZHAO Tong-Lin. Application and Development Tendency of Magnetic Separation for Pre-concentration of Lean Iron Ore in China[J]. Metal Mine, 2016, 45(04): 91-94.

[1]	吴俊杰, 刘恩建, 郭小飞, 代淑娟. 我国典型贫铁矿石预选技术研究新进展[J]. 金属矿山, 2023, 52(04): 124-130.
[2]	卜显忠 , 陈彤 , 薛季玮, 宛鹤, 张崇辉. 新疆某铁矿降锌脱硫工艺研究[J]. 金属矿山, 2021, 50(02): 77-84.
[3]	田艳红, 周咏. 研山铁矿超贫赤铁矿石选矿工艺优化研究[J]. 金属矿山, 2019, 48(11): 68-72.
[4]	徐冬林, 安亚雄, 高鹏, 韩跃新. 鞍千贫赤铁矿石预富集试验[J]. 金属矿山, 2019, 48(02): 145-149.
[5]	于泽龙, 朱巨建, 郭小飞, 李博琦. 极贫赤铁矿石分粒级预选抛尾试验[J]. 金属矿山, 2018, 47(12): 80-83.
[6]	高春庆. 某微细粒铁矿石选矿新工艺研究[J]. 金属矿山, 2016, 45(12): 94-99.
[7]	祝昕冉, 徐冬林, 高鹏, 李艳军, 韩跃新. 鞍千极贫赤铁矿石强磁预选试验[J]. 金属矿山, 2016, 45(12): 82-85.
[8]	刘秉裕, 徐银全, 薛凤琦, 邱实. 悬磁干选机及其应用[J]. 金属矿山, 2015, 44(09): 135-138.
[9]	马艺闻. 内蒙古大坝沟超贫磁铁矿石选矿试验[J]. 金属矿山, 2014, 43(06): 65-68.
[10]	常鲁平, 孙放, 杨任新. CCTS型粗粒磁选机对贫磁铁矿石的预选效果[J]. 金属矿山, 2013, 42(10): 120-123.
[11]	纪莹华, 王德志, 王艳玲, 孙翠芳, 于峰. 悬浮式干选机在柏泉铁矿的工业试验[J]. 金属矿山, 2012, 41(12): 54-56+74.
[12]	何洋, 王化军, 孙体昌, 李宏静. 内蒙古某微细嵌布贫赤铁矿石选矿工艺研究[J]. 金属矿山, 2011, 40(12): 56-59.
[13]	高淑玲, 魏德洲, 崔宝玉, 刘文刚, 张瑞洋. 某鞍山式贫赤铁矿石选矿试验[J]. 金属矿山, 2011, 40(08): 72-75+85.
[14]	许洪刚, 刘桂云. HD202捕收剂在鞍山式贫赤铁矿酸性正浮选工艺中的试验研究[J]. 金属矿山, 2009, 39(01): 74-77.
[15]	杨晓峰, 梁嵩. 某选矿厂工艺流程现状分析及优化工艺研究[J]. 金属矿山, 2007, 37(09): 71-73+96.

扫码分享