화학공학소재연구정보센터
Canadian Journal of Chemical Engineering, Vol.94, No.6, 1032-1039, 2016
Effect of pipe inclination on the deposition velocity of settling slurries
Experiments were conducted using a 100mm diameter pipe loop to investigate the deposition velocity (V-c) of settling slurries in inclined pipe flows up to 20 degrees (36.4 %). Slurries which comprised silica sand or gravel (0.1-8mm) and water were tested at solids concentrations between 6-40 % by volume (0.06-0.4L/L). For the fine (d approximate to 0.1mm) and intermediate solids (d approximate to 0.19mm, 0.3mm), increases in V-c with pipe inclination were marginal. For the coarsest solids (2 and 8mm gravel), the deposition velocity increased significantly with pipe inclination. A comparison is made with the results of Wilson and Tse. The effect of inclination is correlated with the efficiency of turbulent suspension of the particles.