| 高泥化煤泥水的性质及其沉降特性 |
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| 引用本文： | 林喆,杨超,沈正义,亓欣.高泥化煤泥水的性质及其沉降特性[J].煤炭学报,2010,35(2):312-315. |
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| 作者姓名： | 林喆 杨超 沈正义 亓欣 |
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| 作者单位： | 中国矿业大学化工学院; |
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| 摘 要： | 采用X射线衍射和筛分试验对某选煤厂的煤泥水进行了性质分析，并通过试验确定其自然沉降和絮凝沉降的特性，探讨煤泥水性质和絮凝剂对沉降特性的影响机制。结果表明：试验样品含有大量黏土类矿物，这些矿物在水中分解为极细的颗粒，使煤泥水系统形成复杂的多分散悬浮体系--高泥化煤泥水；受黏土矿物的影响，煤泥水的浓度越高，沉降速度越慢，压实层密度越小；絮凝剂的表面性质对悬浮颗粒具有选择性，淀粉改性的聚丙烯酰胺对黏土矿物无效，但可以使煤颗粒聚沉形成较为密实的沉淀层，而PAM-ASG903可同时聚沉黏土矿物和煤，但压实层密度较小。
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| 关 键 词： | 高泥化煤泥水 沉降特性 絮凝剂 |
The properties and sedimentation characteristics of extremely sliming coal slime water |
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| LIN Zhe,YANG Chao,SHEN Zheng-yi,QI Xin.The properties and sedimentation characteristics of extremely sliming coal slime water[J].Journal of China Coal Society,2010,35(2):312-315. |
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| Authors: | LIN Zhe YANG Chao SHEN Zheng-yi QI Xin |
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| Affiliation: | School of Chemical Engineering and Technology/a>;China University of Mining and Technology/a>;Xuzhou 221008/a>;China |
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| Abstract: | The properties of coal slime water from one coal preparation plant were analyzed through X-ray diffraction and screening experiment,and the characteristics of natural sedimentation and flocculation were also tested to investigate the relation between slime water properties,flocculation and sedimentation characteristic. The results show that a large number of clay minerals which can break down into fine particles when encountering water are in the sample,and they make slurry water into complex polydisperse s... |
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| Keywords: | extremely sliming coal slime water sedimentation characteristics flocculation |
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