摘要
全尾砂膏体料浆的水力坡度是浆体管道输送的关键参数之一。采用自制的L管,结合全尾砂膏体料浆的流态特性来测定其水力坡度,根据水力坡度来计算其流变参数,并用数据证明了膏体料浆的均质流特性。试验结果表明:全尾砂膏体料浆不沉粒径d0>dmax,属均质流;雷诺数Re<2 100,属柱塞流;流变参数为膏体料浆的固有属性,不同管径、不同流速下的水力坡度可根据其流变参数进行计算。
The hydraulic gradient of full-tailings paste slurry is one of the key parameters of pipeline transportation.In this paper,using self-made L-pipe,the hydraulic gradient was measured through the combination of the flow characteristics of full-tailings paste slurry,then slurry rheological parameters was calculated on the basis of hydraulic gradient,and slurry＇s homogeneous property was proved through data.The results showed that： the full-tailings paste slurry belongs to homogeneous flow because of unsinkable diameter d0dmax,plug flow because of Reynolds number Re2 100;The rheological parameters are intrinsic properties of slurry.The hydraulic gradient with various diameters and various velocities can be calculated in accordance with the rheological parameters.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2011年第1期108-112,共5页
Journal of Wuhan University of Technology
基金
云南省科技强省计划(2007AD001)
十一五国家科技支撑计划(2006BAB02A01)
新世纪优秀人才支持计划(NECT-07-0070)
关键词
L管
流变参数
水力坡度
均质流
柱塞流
L-pipe
rheological parameter
hydraulic gradient
homogeneous flow
plug flow
