粒度级配对粉煤流动特性的影响研究  

Study on Effects of Particle Size Gradation on Fluidity of Coal Powder

作　　者：赵东升[1] 李寒旭[1] 丰芸[1] 沈宏武[1] 武成利[1] 石旵东[2] ZHAO Dong-sheng LI Han-xu FENG Yun SHEN Hong-wu WU Cheng-li SHI Chan-dong(Anhui University of Science and Technology, Huainan 232001, China Sinopec Anqing Branch, Anqing 246002, China)

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5期289-290,共2页Coal Technology

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

摘　　要：以YA煤为研究对象,制备3种不同粒度级别煤样,采用正交试验探究粒度级配对YA粉煤流动特性的影响,并利用激光粒度分析仪,Rosin-Rammler分布表征不同粒度级配粉煤粒度分布特性。结果表明:对于中位径在20~60μm的粉煤,分布系数影响粉煤流动特性,分布系数较小、粒度分布较广的粉煤可以在中位径较小时达到更佳的流动性。YA coal was used as the research object, and three kinds of YA coal samples in different particle size gradation were prepared to study the influence of particle size gradation on powder flowability by using orthogonal experiment method. The different particle size gradation characteristics were characterized by laser particle size analyzer, Rosin-Rammler distribution. The results show that powder flowability of YA coal was influenced by distribution coefficient for the median diameter in 20- 60 μm coal powder. The YA coal in wide size distribution could have a better flowability in small median diameter.

关 键 词：粒度级配 流动性指数 分布系数 

分 类 号：TQ531[化学工程—煤化学工程]