| 高岭石对煤泥沉降影响的研究 |
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| 引用本文： | 王辉锋,赵龙,徐志强,裴大牛. 高岭石对煤泥沉降影响的研究[J]. 选煤技术, 2012, 0(3): 8-10,18 |
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| 作者姓名： | 王辉锋 赵龙 徐志强 裴大牛 |
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| 作者单位： | 1. 中国矿业大学(北京),北京,100083
2. 中国煤炭科工集团唐山研究院,河北唐山,063012 |
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| 摘 要： | 煤泥水难以沉降的主要原因是其中粘土矿物含量多、粒度细,易形成胶体悬浮液。高岭石是最主要的粘土矿物之一,文章从高岭石的粒度和含量两方面,研究了高岭石对纯煤沉降的影响,研究结果表明:高岭石的粒度对其沉降影响较小;阳离子PAM适合于含有高岭石的煤泥沉降,随着高岭石含量的增加,阳离子PAM加入量以2‰～3‰为宜。
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| 关 键 词： | 高岭石 超纯煤 沉降试验 沉降速度 透光率 沉降效果 |
The influence of kaolinite on settlement of coal slime and countermeasures |
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| WANG Hui-feng , ZHAO Long , XU Zhi-qiang , PEI Da-niu. The influence of kaolinite on settlement of coal slime and countermeasures[J]. Coal Preparation Technology, 2012, 0(3): 8-10,18 |
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| Authors: | WANG Hui-feng ZHAO Long XU Zhi-qiang PEI Da-niu |
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| Affiliation: | 1(1.China University of Mining Technology(Beijing),Beijing 100083,China; 2.Tangshan Research Institute of China Coal Technology & Engineering Group,Tangshan,Hebei 063012,China) |
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| Abstract: | The main reason of difficult to settling of coal slime is high content of clay minerals,finer particle size and formed into colloidal suspension,in which,the kaolinite is the main ingredients.The paper researched the influence of kaolinite on settlement of coal form two aspects of particle size and content of kaolinite in slime.The research result shows that the particle size of kaolinite has little effect on settlement of slime;the cation PAM is appropriate for settling of coal slime containing kaolinite,and with the increase of content of kaolinite,the adding amount of cation PAM is 2‰ to 3‰ is suitable. |
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| Keywords: | kaolinite pure coal settling test settling velocity transmittand settling result |
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