不同煤化程度煤的分形特征与其流动性关系研究  

Study on Relationship between Fractal Characteri-stics with Fluidity of Coals of Different Rank

作　　者：沈宏武[1] 丰芸[1] 赵东升[1] 石旵东[2] 邓业新 陶然[1] 李寒旭[1] 

机构地区：[1]安徽理工大学,安徽淮南232001 [2]中国石化安庆分公司,安徽安庆246002

出　　处：《煤炭技术》2017年第4期311-313,共3页Coal Technology

基　　金：中国石油化工股份有限公司研究项目(20150520110306981)

摘　　要：利用分形维测试法数学模型,并对比Carr指数法测量的流动参数,探讨不同煤化程度煤的分形特征与其流动性间的关系。结果表明:煤化程度是影响粉煤流动性能的因素之一,且不同煤化程度煤之间的分形维数与其流动参数具有显著的线性关系。因此,可以采用分形维数作为粉煤流动性能的评价指标。Mathematical model of fractal testing method was used, and the flow parameters of Carr index measurement was compared, the relationship between fractal characteristics and fluidity of coals of different rank was discussed. The results show that the coal rank is one of the influencing factors of coal powder fluidity, and between coals of different rank,there is a significant linear relationship between fractal dimensions and flow parameters. Therefore, the fractal dimensions as the evaluation index of pulverized coal flow performance can be used.

关 键 词：煤化程度 分形维数 流动性 Carr指数 

分 类 号：TQ531[化学工程—煤化学工程]