摘要
运用分形理论分析了伯方煤矿3号煤层煤样冲击产尘的粒径分布特性,得出:冲击煤尘粒径-质量之间存在明显的分形特性.随着冲击高度和冲击次数的增加,产生微细粉尘的总量也在增多,反映在lnd-lnW曲线上即为直线的斜率变小,分形维数D在不断增大.从而为定量地描述煤尘粒径分布特性规律提供了一种新的方法.
Using the fractal theory to analyse the impacting dust particle-size distribution characteristics of Bofang Mine No. 3 coal seam＇ s coal sample, then it comes to the conclusion that it exists obviously fractal characteristics between the particle-size of impacting coal dust and its weight. And with the increase of impact height and impact times, the total of the tiny dust is increased too. Reflected on the In d - In W curves means the slope decreasing and the fractal dimension D increasing. It offered a new method to describe coal dust particle-size distribution characteristics quantificationally.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2007年第6期596-599,共4页
Journal of China Coal Society
关键词
无烟煤
冲击
粉尘粒径
分形
anthracite
impact
dust particle-size
fractal
