Application of the fractal theory for evaluating effects of coal comminution by waterjet

作     者：Yaqing Li Greg Galecki Gul Akar Sezai Sen Yutao Zhang 

作者机构：Key Lab of Mining and Disaster Prevention and Control in Western MineMinistry of EducationXi’an710054China School of Energy Science and EngineeringXi’an University of Science and TechnologyXi’an 710054China Department of Mining and Nuclear EngineeringMissouri University of Science and TechnologyRollaMO 65401USA Department of Mining EngineeringDokuz Eylul UniversityIzmirTurkey 

出 版 物：《International Journal of Coal Science & Technology》 (国际煤炭科学技术学报（英文）)

年 卷 期：2014年第1卷第4期

页      面：450-455页

学科分类：1002[医学-临床医学] 10[医学] 

基　　金：supported by the Missouri University of Science and Technology/Waterjet Laboratory and funded by the China Postdoctoral Science Foundation(Grant No.2014M552555XB) Doctoral Program in Xi’an University of Science and Technology(Grant No.2013QDJ039) 

主　　题：Coal comminution Fractal theory Particle size distribution Waterjet 

摘      要：Comminution of coal to ultrafine sizes by high-pressure waterjet provides a novel method for preparation of coal-water fuels for next generation,near-zero emission electric power *** particle size distribution(PSD)of ground coal is a key parameter in the preparation of slurries as it determines the settling behavior of the particles and viscosity of the coal-water *** are several methods available for representation and evaluation of particle size analysis ***,fractal theory provides a means by which the entire PSD of comminuted materials can be quantified by using of a specific and exact *** this paper,a volume-based fractal model was deduced to characterize the PSD of the coal which is ground in a specially designed comminution *** the size reduction process,the inlet pressures up to 276 MPa were used.