鞍千贫赤铁矿石预富集试验
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摘要
鞍千贫赤铁矿石铁品位为16.67%,铁主要以赤铁矿的形式存在,铁在赤铁矿中分布率为72.77%,主要脉石矿物为石英。为了开发利用该低品位铁矿石,进行了预富集试验。结果表明:采用湿式强磁预选—磨矿—弱磁选—强磁选工艺预富集,矿石在给料粒度-3 mm、背景磁感应强度为0.8 T、立环转速2.0 r/min、冲次频率200次/min条件下强磁预选,预选精矿在磨矿细度-200目占95%,磁场强度为120 k A/m条件下弱磁选,背景磁感应强度为0.8T条件下强磁选,可获得TFe品位47.04%、回收率为80.25%的预富集精矿。试验结果可以为我国贫赤铁矿石的强磁预选提供参考。
The iron grade of Anqian lean hematite ore is 16.67%. Iron mainly exists in the form of hematite,which ac?counts for 72.77% of the total iron. Main gangue mineral is quartz. In order to develop and utilize the iron ore,preconcentra?tion experiment was conducted. Results indicated that,by iron enrich process of wet high-intensity magnetic pre-separationgrinding-low intensity magnetic separation-high intensity magnetic separation. At the feeding particle size-3 mm,back?ground magnetic field intensity is 0.8 T,vertical ring speed 2.0 r/min,stroke frequency 200 times/min;grinding particle size-200 mesh 95%,intensity of low intensity magnetic separation is 120 kA/m,intensity of high intensity magnetic separa?tion is 0.8 T,the preconcentration concentrate with TFe grade of 47.04% and recovery of 80.25% was obtained. The results can provide reference for the high intensity pre-separation of poor hematite ore in China.
The iron grade of Anqian lean hematite ore is 16.67%. Iron mainly exists in the form of hematite,which ac?counts for 72.77% of the total iron. Main gangue mineral is quartz. In order to develop and utilize the iron ore,preconcentra?tion experiment was conducted. Results indicated that,by iron enrich process of wet high-intensity magnetic pre-separationgrinding-low intensity magnetic separation-high intensity magnetic separation. At the feeding particle size-3 mm,back?ground magnetic field intensity is 0.8 T,vertical ring speed 2.0 r/min,stroke frequency 200 times/min;grinding particle size-200 mesh 95%,intensity of low intensity magnetic separation is 120 kA/m,intensity of high intensity magnetic separa?tion is 0.8 T,the preconcentration concentrate with TFe grade of 47.04% and recovery of 80.25% was obtained. The results can provide reference for the high intensity pre-separation of poor hematite ore in China.
引文
[1]韩跃新,孙永升,李艳军,等.我国铁矿选矿技术最新进展[J].金属矿山,2015(2):1-11.Han Yuexin,Sun Yongsheng,Li Yanjun,et al.New development on mineral processing technology of iron ore resources in China[J].Metal Mine,2015(2):1-11.
[2]邵安林.鞍山式铁矿石选矿理论与实践[M].北京:科学出版社,2013.Shao Anlin.Theory and Practice of Anshan Iron Mineral Processing[M].Beijing:Science Press,2013.
[3]马建明.积极开发国内铁矿资源,保障我国钢铁工业健康发展[J].地质与勘探,2013(11):16-19.Ma Jianming.Actively develop domestic iron ore resources,protect the healthy development of steel industry in China[J].Gedogy and Exploration,2013(11):16-19.
[4]唐雪峰.难处理赤铁矿选矿技术研究现状和发展趋势[J].现代矿业,2014(3):14-19.Tang Xuefeng.Research status and development trend of beneficiation technology on complex hematite[J].Modern Mining,2014(3):14-19.
[5]祝昕冉.鞍千极贫赤铁矿石强磁预选试验[J].金属矿山,2016(12):82-85.Zhu Xinran.High-intensity magnetic pre-separation experiment on extremely lean hematite ore from Anqian[J].Metal Mine,2016(12):82-85.
[6]孙炳泉.近年我国复杂难选铁矿石选矿技术进展[J].金属矿山,2006(3):11-13.Sun Bingquan.Progress in China's complex refractory iron ore beneficiation technology in recent years[J].Metal Mine,2006(3):12-13.
[7]陈雯.贫细杂难选铁矿石选矿技术进展[J].金属矿山,2010(5):55-59.Chen Wen.Advances in the technology of poor ore-difficult iron ore beneficiation[J].Metal Mine,2010(5):55-59
[8]韩跃新,袁致涛,李艳军,等.我国金属矿山选矿技术进展及发展方向[J].金属矿山,2006(1):34-40.Han Yuexin,Yuan Zhitao,Li Yanjun,et al.Progress and development direction of metal ore dressing technology in China[J].Metal Mine,2006(1):34-40.
[9]鲁荣林.东鞍山铁矿矿石工艺矿物学特征研究[J].金属矿山,2004(9):40-41.Lu Ronglin.Study on mineralogical characteristics of ore in Donganshan iron ore[J].Metal Mine,2004(9):40-41.
[10]杨永革,张明,薛敏.东鞍山贫赤铁矿石选矿技术研究[J].金属矿山,2009(3):46-49.Yang Yongge,Zhang Ming,Xue Min.Study on beneficiation technology of lean chi iron ore in Donganshan[J].Metal Mine,2009(3):46-49.
[11]陈占金,李维兵,孙胜义,等.鞍山地区难选铁矿石选矿技术研究[J].金属矿山,2007(1):30-34.Chen Zhanjin,Li Weibing,Sun Shengyi,et al.Study on blasting technology of refractory iron ore in Anshan area[J].Metal Mine,2007(1):30-34.
[12]于克旭.鞍山式贫赤铁矿选别工艺研究[N].世界金属导报,2012-04-17(B02).Yu Kexu.Study on the selection process of Anshan-type lean hematite ore[N].World Metal Guide,2012-04-17(B02).
[2]邵安林.鞍山式铁矿石选矿理论与实践[M].北京:科学出版社,2013.Shao Anlin.Theory and Practice of Anshan Iron Mineral Processing[M].Beijing:Science Press,2013.
[3]马建明.积极开发国内铁矿资源,保障我国钢铁工业健康发展[J].地质与勘探,2013(11):16-19.Ma Jianming.Actively develop domestic iron ore resources,protect the healthy development of steel industry in China[J].Gedogy and Exploration,2013(11):16-19.
[4]唐雪峰.难处理赤铁矿选矿技术研究现状和发展趋势[J].现代矿业,2014(3):14-19.Tang Xuefeng.Research status and development trend of beneficiation technology on complex hematite[J].Modern Mining,2014(3):14-19.
[5]祝昕冉.鞍千极贫赤铁矿石强磁预选试验[J].金属矿山,2016(12):82-85.Zhu Xinran.High-intensity magnetic pre-separation experiment on extremely lean hematite ore from Anqian[J].Metal Mine,2016(12):82-85.
[6]孙炳泉.近年我国复杂难选铁矿石选矿技术进展[J].金属矿山,2006(3):11-13.Sun Bingquan.Progress in China's complex refractory iron ore beneficiation technology in recent years[J].Metal Mine,2006(3):12-13.
[7]陈雯.贫细杂难选铁矿石选矿技术进展[J].金属矿山,2010(5):55-59.Chen Wen.Advances in the technology of poor ore-difficult iron ore beneficiation[J].Metal Mine,2010(5):55-59
[8]韩跃新,袁致涛,李艳军,等.我国金属矿山选矿技术进展及发展方向[J].金属矿山,2006(1):34-40.Han Yuexin,Yuan Zhitao,Li Yanjun,et al.Progress and development direction of metal ore dressing technology in China[J].Metal Mine,2006(1):34-40.
[9]鲁荣林.东鞍山铁矿矿石工艺矿物学特征研究[J].金属矿山,2004(9):40-41.Lu Ronglin.Study on mineralogical characteristics of ore in Donganshan iron ore[J].Metal Mine,2004(9):40-41.
[10]杨永革,张明,薛敏.东鞍山贫赤铁矿石选矿技术研究[J].金属矿山,2009(3):46-49.Yang Yongge,Zhang Ming,Xue Min.Study on beneficiation technology of lean chi iron ore in Donganshan[J].Metal Mine,2009(3):46-49.
[11]陈占金,李维兵,孙胜义,等.鞍山地区难选铁矿石选矿技术研究[J].金属矿山,2007(1):30-34.Chen Zhanjin,Li Weibing,Sun Shengyi,et al.Study on blasting technology of refractory iron ore in Anshan area[J].Metal Mine,2007(1):30-34.
[12]于克旭.鞍山式贫赤铁矿选别工艺研究[N].世界金属导报,2012-04-17(B02).Yu Kexu.Study on the selection process of Anshan-type lean hematite ore[N].World Metal Guide,2012-04-17(B02).