煤泥水沉降特性的影响因素分析

被引:117
作者
冯莉
刘炯天
张明青
宋玲玲
机构
[1] 中国矿业大学化工学院煤炭加工与高效洁净利用教育部重点实验室
关键词
煤泥水; 沉降特性; 黏土; ζ电位; 水质硬度;
D O I
暂无
中图分类号
TD94 [选煤];
学科分类号
081902 ;
摘要
基于煤泥水组成及性质,分析了悬浮颗粒大小、矿物泥化性质、ζ电位、颗粒间势能、水质硬度和系统特点对煤泥水沉降特性的影响.研究结果表明:<0.010mm的颗粒沉降速度很小,是造成选煤厂"细泥"积聚的主要原因;在煤泥水中,不易泥化的矿物较易沉降,而黏土极易泥化,导致煤泥水难以沉降;矿物ζ电位越小,煤泥水越易沉降;黏土颗粒间始终为斥力作用,颗粒处于分散状态.水质硬度决定了煤泥水的沉降性能,水质硬度越低,煤泥水越难沉降.
引用
收藏
页码:671 / 675
页数:5
相关论文
共 7 条
[1]  
Process mineralogy of copper-nickel sulphide flotation by a cyclonic-static micro-bubble flotation column[J]. CAO Yi-jun1, GUI Xia-hui1, MA Zi-long1, YU Xiao-xia2, CHEN Xiao-dong2, ZHANG Xiu-pin2 1School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China 2Jinchuan Group Ltd., Jinchang, Gansu 737100, China.Mining Science and Technology. 2009(06)
[2]   水质硬度对煤和蒙脱石颗粒分散行为的影响 [J].
张明青 ;
刘炯天 ;
刘汉湖 ;
王永田 .
中国矿业大学学报, 2009, 38 (01) :114-118
[3]   Particle characteristics and rheological constitutive relations of high concentration red mud [J].
WANG Xing QU Yuanyuan HU Weiwei CHEN Jie ZHAO Xueyi WU Miao School of Electromechanical and Information EngineeringChina University of MiningTechnologyBeijing China Electromechanical Engineering and Technology InstituteChina University of MiningTechnologyBeijing China .
JournalofChinaUniversityofMining&Technology, 2008, (02) :266-270
[4]   煤泥水处理方法的研究 [J].
马永梅 .
煤炭科学技术, 2007, (05) :80-83
[5]  
Quantitative Study on Polymer Flocculation Mechanism Based on Mathematical Morphology[J]. GUO Ling-xiang 1, WANG Chen-yi 2 1 Department of chemistry and chemical engineering, Southeast University, Nanjing, Jiangsu 210096, China 2 Department of Chemistry, Huzhou Teachers College, Huzhou, Zhejiang 313000, China.Journal of China University of Mining & Technology(English Edition). 2006(02)
[6]  
Research on Kaolinite in Coal Measures of West Beijing by Mossbauer Spectroscopy[J]. YANG Xiao-jie1, CHU Li-kong1, LIU Dong-ming1, CHEN Kai-hui2 1 School of Mechanics, Architecture and Civil Engineering, China University of Mining & Technology, Beijing 100083,China 2 Institute of Geosciences of China Academy of Sciences,Beijing 100029,China.Journal of China University of Mining & Technology(English Edition). 2006(01)
[7]   煤泥水处理中絮凝剂的应用现状及发展展望 [J].
张东晨 ;
张明旭 ;
陈清如 .
选煤技术, 2004, (02) :1-3+5