矿产综合利用Issue(6)：10-12,4,4.DOI:10.3969/j.issn.1000-6532.2017.06.003
炼焦中煤磨矿再选研究现状
Research Status on Grinding and Re-separation of Coking Middlings
摘要
Abstract
The storage and use status of coking coal resources in China were described,the trend of recycling the qualified coking coal from coking middlings and making full use of the existing resources is imperative.The research status on grinding and re-separation status of coking middlings were introduced from the coal quality analysis,the grinding exploring(including the pretreatment)and the separation method.The advantages and disadvantages of different separation methods were compared.Clay minerals are mainly minerals in coal,distributing in the organic components at the particle size of 5 ～ 30 μm mostly.Suitable grinding pretreatment not only promotes dissociation between minerals and organic components in coal,but also is conducive to reduce the ash content.On the condition of low cleaned coal yield relatively,the rough grinding has lots of advantages,including low grinding energy consumption,low reagent consumption,avoiding over grinding effectively,simple process etc.Although the recovery rate of clean coal is little higher by the deep grinding,but it usually leads to huge energy consumption,huge reagent consumption,and other shortcomings.All factors taken into account,the sheet of pretreatment-coarse grinding-coarse flotation and cleaning flotation is considered as one of effective and feasible ways to recycle the coking middlings.关键词
炼焦中煤/磨矿/浮选Key words
Coking middlings/Grinding/Flotation分类
矿业与冶金引用本文复制引用
朱张磊,张成安..炼焦中煤磨矿再选研究现状[J].矿产综合利用,2017,(6):10-12,4,4.基金项目
煤科学与技术省部共建国家重点实验室培养基地开放基金资助项目(MKX201402) （MKX201402）
