灵武煤制水煤浆颗粒级配研究  

Study of particle gradation on CWM preparation by Lingwu coal

作　　者：李和平[1] 马亚楠[1] 胡奇林[1] 刘万毅[1] 

机构地区：[1]宁夏大学化学化工学院,宁夏银川750021

出　　处：《宁夏工程技术》2011年第4期306-308,共3页Ningxia Engineering Technology

基　　金：宁夏自然科学基金资助项目(NZ1021)

摘　　要：根据颗粒堆积模型,探讨了粒度分布对水煤浆成浆性能的影响.用GZS-1型标准振筛机将煤样筛分成60～140目、140～200目及200目以上3种.采用干法制浆,配制了理论质量分数为65%的浆体,分别考查了各区间粒度组分数对浆体成浆性能的影响规律.结果表明,200目以上颗粒质量分数为30%,140～200目颗粒质量分数为30%,60～140目颗粒质量分数为40%时制得的水煤浆黏度最低,为497.0 mPa.s.On the base of particle accumulation model,the influence of particle size distribution of coal to slurry performance was discussed.With GZS-1 standard vibrating sieving machine in experiment,coal sample was divided into 3 classes,such as 60—140 mesh,140—200 mesh and more than 200 meshes.Using dry particle gradation method,65% slurry concentration in theory was prepared,and influence law of particle size in every class to slurry properties was examined.The experimental results show that particles weight is 30% in more than 200 meshes,30% in 140—200 mesh,40% in 60—140 mesh,which coal-water mixture viscosity is the lowest,497.0 mPa·s.

关 键 词：水煤浆 粒度分布 级配 黏度 

分 类 号：TQ53[化学工程—煤化学工程]