新型添加剂与超声辐照联用对水煤浆性能的改善
Improvement in properties of coal water slurry by combined use of new additive and ultrasonic irradiation.
作者信息
Guo Zhaobing, Feng Ruo, Zheng Youfei, Fu Xiaoru
机构信息
College of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, PR China.
State Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, PR China.
出版信息
Ultrason Sonochem. 2007 Jul;14(5):583-588. doi: 10.1016/j.ultsonch.2006.12.001. Epub 2007 Jan 22.
Coal water slurry (CWS) was prepared with a newly developed additive from naphthalene oil. The effects of ultrasonic irradiation on coal particle size distribution (PSD), adsorption behavior of additive in coal particles and the characteristics of CWS were investigated. Results showed that ultrasonic irradiation led to a higher proportion of fine coal in CWS and increased the saturated adsorption amount of additive in coal particles. In addition, the rheological behavior and static stability of CWS irradiated by ultrasonic wave were remarkably improved. The changes on viscosity of CWS containing 1% and 2% additive are qualitatively different with the increasing sonication time studied. The reason for the different effect of sonication time on CWS viscosity is presented in this study.
采用一种新开发的萘油添加剂制备了水煤浆（CWS）。研究了超声辐照对水煤浆中煤颗粒粒度分布（PSD）、添加剂在煤颗粒中的吸附行为以及水煤浆特性的影响。结果表明，超声辐照使水煤浆中细煤比例更高，并增加了添加剂在煤颗粒中的饱和吸附量。此外，超声辐照的水煤浆的流变行为和静态稳定性得到显著改善。在研究的超声处理时间增加时，含1%和2%添加剂的水煤浆粘度变化在性质上有所不同。本研究给出了超声处理时间对水煤浆粘度产生不同影响的原因。
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