Wang Yuanyang，L i Yongx in，Sun Yuhan，L i Baoqing

（ State Key Laboratory of Coal Conversion，Institute of Coal

Chemistry，Chinese Academy of Sciences，T aiyuan030001）

Abstract

A new M onte Carlo approach （ M CA ） is developed for the simulation of colloid particlesʾsubsidence simulation method are synthesized as one unite model．Based on the simulation of the particlesʾaggregation in colloid system，gravity factor is introduced into M CA to investigate the aggregation and subsidence of intermediate system，and then those of coarse distribution system such as w ater-coal slurry is studied at three aspects of particle size，cluster size and particle density，the essence of these parametres on the stability of w ater-coal slurry is initially clarified．

Keywords：ultrasonic radiation；w ater-coal slurry；stability；M onte Carlo simulation

DOI：10.13732/j.issn.1008-5548.1999.04.001