Partic. vol. 25 pp. 143-150 (April 2016)
doi: 10.1016/j.partic.2015.07.002

Experimental measurements of gas–solid flow and splitting mechanisms of a coal pipe splitter with a perpendicularly arranged upstream elbow

Hao Zhou^*, Yan Huang, Yu Yang, Guiyuan Mo, Jianzhong Li, Kefa Cen

zhouhao@cmee.zju.edu.cn

Abstract

The effect of the vertical pipe length on the performance of a coal pipe splitter with a perpendicularly arranged upstream elbow was investigated experimentally employing a fiber optic measuring system. The upstream elbow and coal pipe splitter were installed in two perpendicular planes. Contours of distributions of the particle concentration and size were obtained in different transverse sections. The experimental data show that the maximum/minimum concentration ratio in transverse sections A, B, and C decreased rapidly as the length of the vertical pipe increased. The left/right-leg average concentration ratio remained about 1, and a balanced split was thus achieved. With a perpendicularly arranged upstream elbow, the vertical pipe length had little effect on the splitter performance, which is beneficial for engineering design and convenient for industrial application.

Graphical abstract

Keywords

Gas–solid flow; Concentration measurement; Coal pipe splitter; Fiber optic sensor