摘要
为了探索黏度测定方法、粒度级配、质量分数以及温度4个因素对管输煤浆黏度值的影响,以陕西神南矿区煤样制备浆体为样本,通过试验研究来探索上述因素对黏度测定的影响规律。试验结果表明:旋转黏度计黏度测定值比毛细管黏度计黏度测定值高约30%;黏度测定值随着Ⅳ粒度区间占比、质量分数的增加呈增加趋势,且随温度的降低而增加;管道煤浆黏度值测定的试验,均需进行黏度测定方法、粒度级配、质量分数以及温度4个影响因子的试验设计。
In order to investigate the effect of measurement method,particle size distribution,mass concentration and temperature on the viscosity of coal slurry for pipeline transportation,coal slurry samples from Shaanxi Shennan mining area were systematically studied. Results show that the viscosity measured using rotary viscometer is 30% higher than that measured by capillary viscometer.The apparent viscosity increases with increase of proportion of Ⅳ-grain size range and mass concentration,while decreases with increase of temperature.The viscosity measurement concerning on the piping transportation of coal slurry should comprehensively consider the impacts from the measurement method,particle size distribution,mass concentration and temperature.
作者
涂照妹
Tu Zhaomei(CCTEG Wuhan Engineering Co. ,Ltd. , Wuhan 430064, Chin)
出处
《洁净煤技术》
CAS
2017年第2期65-68,共4页
Clean Coal Technology
基金
中国煤炭科工集团科技创新基金青年基金资助项目(2014QN039)
关键词
煤浆
黏度
影响因素
粒度级配
coal slurry
viscosity
influence factor
particle size distribution
