| 煤变质程度对煤泥水沉降性能的影响 |
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| 引用本文： | 张明青,刘炯天,王永田. 煤变质程度对煤泥水沉降性能的影响[J]. 煤炭科学技术, 2008, 36(11) |
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| 作者姓名： | 张明青 刘炯天 王永田 |
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| 作者单位： | 中国矿业大学环境与测绘学院;中国矿业大学化工学院; |
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| 基金项目： | 国家杰出青年科学基金资助项目，中国矿业大学科技基金资助项目 |
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| 摘 要： | 利用扩展的DLVO理论计算了长焰煤、气煤和贫瘦煤3种不同变质程度的煤颗粒在水中的相互作用能,分析了变质程度对煤泥水沉降性能的影响.结果表明,煤变质程度越高,颗粒之间静电排斥能越小,疏水吸引能越大,所以贫瘦煤颗粒之间最易凝聚,气煤次之,长焰煤最不易凝聚,即煤泥水所含煤颗粒变质程度越高,越易澄清.
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| 关 键 词： | 煤泥水 变质程度 沉降性能 扩展的DLVO理论 |
Coalification ranking affected to settling performance of slurry water |
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| ZHANG Ming-qing,LIU Jiong-tian,WANG Yong-tian. Coalification ranking affected to settling performance of slurry water[J]. Coal Science and Technology, 2008, 36(11) |
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| Authors: | ZHANG Ming-qing LIU Jiong-tian WANG Yong-tian |
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| Affiliation: | ZHANG Ming-qing1,LIU Jiong-tian2,WANG Yong-tian2(1.School of Environment Science , Spatial Informatics,China University of Mining , Technology,Xuzhou 221008,China,2.School of Chemical Engineering , Technology,China) |
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| Abstract: | The interaction energy between the particles of three different coalification ranking coal,such as long flame coal,gas coal and meager coal were calculated with the extended DLVO theory.The paper analyzed the coalification ranking affected to the settling performance of the slurry water.The results showed that the higher coalification ranking is,the electrostatic exclusive energy between the particles will be smaller and the water attractive energy will be higher.Therefore,there would be easy coagulation be... |
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| Keywords: | slurry water coalification ranking settling performance extended DLVO theory |
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