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不同水煤浆添加剂与煤之间的相互作用规律研究--分散剂用量对水煤浆流变特性的影响(Ⅳ)
引用本文:邹立壮,朱书全,支献华,崔广文.不同水煤浆添加剂与煤之间的相互作用规律研究--分散剂用量对水煤浆流变特性的影响(Ⅳ)[J].中国矿业大学学报,2004,33(4):370-374.
作者姓名:邹立壮  朱书全  支献华  崔广文
作者单位:中国矿业大学,化学与环境工程学院,北京,100083
基金项目:国家自然科学基金项目(50074033)
摘    要:用6种分散剂和6种不同变质程度的煤进行了成浆实验以研究分散剂的用量对水煤浆(CWS)流变特性的影响.结果表明,分散剂的种类和用量不仅影响CWS的表观黏度而且还影响其流变特性.分散剂用量过多或过少都会增加CWS的表观黏度,但不同分散剂的最佳用量范围不同,这主要取决于分散剂的结构、性质及其与煤粒间的相互作用特征.分散剂用量主要关系到煤粒表面改性的程度;分散剂的种类主要影响到改性煤粒表面的结构特征.

关 键 词:水煤浆  分散剂用量  流变特性  CWS
文章编号:1000-1964(2004)04-0370-05
修稿时间:2003年9月16日

Study of Interaction Features Between Different CWS Dispersants and Coals--Effect of Dispersant Dosage on CWS Rheological Behavior(Ⅳ)
ZOU Li-zhuang,ZHU Shu-quan,ZHI Xian-hua,CUI Guan-gwen.Study of Interaction Features Between Different CWS Dispersants and Coals--Effect of Dispersant Dosage on CWS Rheological Behavior(Ⅳ)[J].Journal of China University of Mining & Technology,2004,33(4):370-374.
Authors:ZOU Li-zhuang  ZHU Shu-quan  ZHI Xian-hua  CUI Guan-gwen
Abstract:Influence of dispersant dosage on CWS rheological behavior was studied using 6 Chinese coals and 6 dispersants. The results show that the dispersant and its dosage not only influence the apparent viscosity but also the rheological behavior of CWS. Surplus or scanty dispersant dosage will increase the apparent viscosity of CWS. But the optimal dosage is different for different dispersants mainly because their structures, properties, and interaction characteristic between coal particles and dispersants are different. The usage of dispersant has much to do with the extent of dispersant-modified property of coal particles. The type of dispersant mainly influence the surface structure characteristic of coal particle.
Keywords:CWS  dispersant dosage  rheological behavior
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