Influence of coal slurry particle composition on pipeline hydraulic transportation behavior

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Li-An, Zhao^1 ; Ronghuan, Cai^1 ; Tieli, Wang^2

Department of Mining Engineering, Mining Institute, Liaoning Technical University, Fuxin

123000, China^1

Department of Pipeline Coal Transporting, Wuhan Design and Research Institute of China, Coal Technology and Engineering Group, Wuhan, Hubei

430064, China^2

关键词: Critical velocities;    Energy transportation;    Hydraulic conveying;    Hydraulic transportation;    Particle composition;    Sedimentation velocities;    Slurry particles;    Slurry viscosity;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012163/pdf
DOI  :  10.1088/1755-1315/113/1/012163

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Acting as a new type of energy transportation mode, the coal pipeline hydraulic transmission can reduce the energy transportation cost and the fly ash pollution of the conventional coal transportation. In this study, the effect of average velocity, particle size and pumping time on particle composition of coal particles during hydraulic conveying was investigated by ring tube test. Meanwhile, the effects of particle composition change on slurry viscosity, transmission resistance and critical sedimentation velocity were studied based on the experimental data. The experimental and theoretical analysis indicate that the alter of slurry particle composition can lead to the change of viscosity, resistance and critical velocity of slurry. Moreover, based on the previous studies, the critical velocity calculation model of coal slurry is proposed.