Study on fractal characteristics of particle size distribution function for modifiedbrown coal
Particle size distributions (PSDs) are often rendered as cumulative functions, either as number of particles larger than a certain diameter, or as mass smaller than a certain diameter. According to the application status of low rank brown coals of Inner Mongolia, the fractal characteristics of particle size distribution function of raw brown coals and modified-brown coals were analyzed in the paper. The grain size analysis and microstructure analysis of coal samples were measured by the Euro-American gram LS-C (1) type laser Particle analytical instrument, Fourier infrared spectrum (FRIT) and scanning electron microscope (SEM), respectively. The results of the study indicate that raw brown coals and modified-brown coals have fractal feature by using the mathematical model of fractal characteristics of particle size distribution function based on fractal theory. The paper provides the fractal dimensions of modified-brown coals increased with the rank of coal. Thus fractal dimensions can be used as an evaluation index of coal rank providing theoretical basis and distinguish basis for a further study on properties of modified-brown coals.
Zhi-fang Gao Xing-mei Shen Shi-huai Su Liao-sha Li Shu-quan Zhu Yong-hui Liu
Anhui Provincial Key Lab of Metallurgy Engineering & Resources Recycling, Anhui University of Techno Maanshan Iron and Steel Co.,Ltd., Maanshan, Anhui, China School of Chemical and EnvironmentalEngineering, China University of Mining and Technology Beijing, Department of Chemical Engineering, Tsinghua University, Beijing, China
国际会议
2010国际混沌、分形理论与应用研讨会(IWCFTA 2010)
昆明
英文
449-452
2010-10-29（万方平台首次上网日期，不代表论文的发表时间）