细粒煤炭的分形特征对透筛过程的影响  

Effect of Fractal Feature of Fine Coal on Screening Process

作　　者：朱红[1] 陈惜明[1] 赵跃民[1] 

机构地区：[1]中国矿业大学能源化工系,江苏徐州221008

出　　处：《中国矿业大学学报》2000年第3期258-261,共4页Journal of China University of Mining & Technology

基　　金：国家自然科学基金!(59774009);江苏省青年科技基金!(BQ96001);煤炭科学基金资助!(96加10103)

摘　　要：用压汞法测量了细粒煤炭的表面分维，证实了细粒煤具有分形特征的事实，认为中国大部分矿区的煤其分维值在2~3之间;提出了内在水分和表面分维的线性关系及筛上产物的预测公式，得出了表面分维较大时有利于筛分过程的结论.Surface fractal dimension of fine coal was measured by means of MIP. The fact that fine coal has fractal features was proved. And the surf ace fractal dimensions of Chinese coal were thought to be 2.0~3.0 . A linearequation reflecting the surface fractal dimension and internal water and being used to forecast the products on the upside of the screen was establ ished. I t can be concluded that the greater the fractal value is，the more efficient the screening will be.

关 键 词：筛分 分形 细粒煤 表面分维 透筛过程 

分 类 号：TD942.13[矿业工程—选矿]