Study on the ultrasonic irradiation of coal water slurry

被引：82

作者：

Li, YX

Li, BQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China

[2] Ningxia Univ, Dept Chem, Ningxia 750021, Peoples R China

来源：

FUEL | 2000年 / 79卷 / 3-4期

关键词：

coal water slurry; ultrasonic irradiation; rheoligical behavior; static stability;

D O I：

10.1016/S0016-2361(99)00157-X

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 [动力工程及工程热物理]; 0820 [石油与天然气工程];

摘要：

The effects of ultrasonic irradiation on the properties of coal water slurry (CWS), such as apparent viscosity, rheological behavior and static stability, were investigated. The ultrasonic intensity was varied from 40 to 80 W cm(-2) and irradiation time from 2 to 10 min. Ultrasonic irradiation distinctly improves both rheological behavior and static stability of CWS with a slight increase in the apparent viscosity of CWS containing 1% additive. The mechanisms having a remarkable improvement on the properties of CWS were proposed by measuring the changes of coal particle size distribution and dissolved ions in CWS before and after ultrasonic irradiation. The ultrasonic irradiation may provide a new technology for CWS preparation. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：235 / 241

页数：7

共 19 条

[1]

ASAYUKI N, Patent No. 067338081

[2]

COLLAPSE OF CAVITATION BUBBLES AND PRESSURES THEREBY PRODUCED AGAINST SOLID BOUNDARIES [J].