| 高炉喷吹煤粉质量分布和组分特性关系的研究 |
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| 引用本文： | 焦红光,刘鹏,陈清如. 高炉喷吹煤粉质量分布和组分特性关系的研究[J]. 钢铁, 2009, 44(8): 20-0 |
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| 作者姓名： | 焦红光 刘鹏 陈清如 |
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| 作者单位： | 1. 河南理工大学材料科学与工程学院， 河南 焦作 454003；2. 中国矿业大学化工学院， 江苏 徐州 221116 |
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| 基金项目： | 河南省重点科技攻关资助项目(117309);;河南理工大学引进人才基金项目(Y2006-1) |
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| 摘 要： | 为了解磨制高炉喷吹煤粉的质量分布和组分特性间的关系，以洛阳某矿生产的原煤为样品磨矿制粉，采用X射线衍射仪和振动样品磁强计分别考察了不同粒度级煤粉的质量状况（灰分、硫分和比磁化率等指标），进而研究了不同粒度级煤粉的组分特性。发现磨制高炉喷吹煤粉的灰分、硫分和比磁化率均随煤粉颗粒粒径减小而递减；而这种规律是由于煤系矿物质同煤基质之间可磨性和磁性的差异造成的，在此基础上结合煤粉制备系统提出了回粉干式磁选新工艺。
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| 关 键 词： | 高炉喷吹煤粉 粒度 硫分 灰分 比磁化率 磁选 X射线衍射 |
Study on Quality Distribution and Maceral Properties of Pulverized Coal for Blast Furnace Injection |
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| JIAO Hong-guang,LIU Peng,CHEN Qing-ru. Study on Quality Distribution and Maceral Properties of Pulverized Coal for Blast Furnace Injection[J]. Iron & Steel, 2009, 44(8): 20-0 |
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| Authors: | JIAO Hong-guang LIU Peng CHEN Qing-ru |
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| Affiliation: | 1. School of Material Science and Engineer, Henan Polytechnic University, Jiaozuo 454003, Henan, China; 2. China University of Mining and Technology, School of Chemical Engineering and Technology, Xuzhou 221116, Jiangsu, China |
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| Abstract: | To find out the quality distribution and maceral properties of fine coal for blast furnace injection,a sample produced by a colliery in Luoyang was used.Take advantage of X-ray diffractometer and vibrating sample magnetometer,three quality specifications as ash,sulfur and magnetic susceptibility of different size of pulversized fine coal were inspected respectively;the maceral properties of different size ranges of milling fine coal were also studied.The results show that these three quality indexes all pro... |
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| Keywords: | pulverized coal for blast furnace injection size sulfur ash magnetic susceptibility magnetic separation X-ray diffractometer |
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