| 原煤密度对泥化及煤泥颗粒表面电位的影响 |
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| 引用本文： | 赵晴,闵凡飞,刘令云,李宏亮. 原煤密度对泥化及煤泥颗粒表面电位的影响[J]. 煤炭科学技术, 2011, 39(6): 115-118 |
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| 作者姓名： | 赵晴 闵凡飞 刘令云 李宏亮 |
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| 作者单位： | 安徽理工大学材料科学与工程学院,安徽淮南,232001 |
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| 基金项目： | 安徽省教育厅自然科学基金重点资助项目(KJ2009A016); 安徽省自然科学基金资助项目(11040606M121); 淮南市科技计划资助项目(2010A03103) |
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| 摘 要： | 对淮南矿区丁集选煤厂50~0.5 mm不同密度级原煤进行了泥化试验,采用X-射线衍射仪和电泳试验分别对原煤矿物组成和煤泥微细颗粒表面电位进行了测定。结果表明:入选原煤中主要矿物成分有石英、高岭石、绿泥石等;高密度和中间密度级原煤泥化率大,+1.60 g/cm3原煤泥化煤泥中-0.045 mm颗粒最多,其中约90%以上为-0.025 mm的微细颗粒;随着原煤密度的增大和煤泥粒度的减小,泥化煤泥微细颗粒表面电位呈减小趋势,水的硬度、原煤中可溶性盐及颗粒表面性质对煤泥微细颗粒电位产生重要影响,微细煤泥颗粒表面电位增大会导致其在煤泥水中处于更加稳定的分散状态。
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| 关 键 词： | 原煤密度 泥化 微细颗粒 电位 煤泥水 |
Raw Coal Density Affected to Surface Zeta Potential of Muddy and Slime Particle |
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| ZHAO Qing,MIN Fan-fei,LIU Ling-yun,LI Hong-liang. Raw Coal Density Affected to Surface Zeta Potential of Muddy and Slime Particle[J]. Coal Science and Technology, 2011, 39(6): 115-118 |
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| Authors: | ZHAO Qing MIN Fan-fei LIU Ling-yun LI Hong-liang |
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| Affiliation: | ZHAO Qing,MIN Fan-fei,LIU Ling-yun,LI Hong-liang(School of Material Sciences and Engineering,Anhui University of Science and Technology,Huainan 232001,China) |
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| Abstract: | The muddy experiment on 50~0.5 mm different density raw coal from Dingji Coal Preparation Plant of Huainan Mining Area was conducted.The X-ray diffractor and the electrophoresis experiment was individually applied to measure the raw coal mineral composition and the zeta potential on the micro particle surface of the slime.The results showed that the main mineral composition of the raw coal to be prepared would be including quartz,kaolinite,green mudstone and others.The muddy rate of the high density and med... |
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| Keywords: | raw coal density muddy micro-particle zeta potential coal slime water |
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