HYDRODYNAMIC STUDIES IN SLURRY TRANSPORT

Abstract

Suspended solids flow in pipelines is of interest because it is applicable to problems relating to the hand-ling and transportation of solid raw materials. The present investigation pertains to the pressure drop studies of coal-water slurries and Fly Ash-water slurries in a 22 mm internal diameter Poly-Vinyl Chloride pipeline. The experimental set-up consisted of a slurry pre-paration tank having 630 mm inside diameter and 900 mm height with air sparger for agitation. The systems studied were 2%, 5% and V. by weight coal-water slurries having particle size range from 0.135 mm to 2.300 mm; and 2;:, 5;4 and 7./ by weight Fly Ash-Water slurries having particle size range from 0.045 mm to 1.000 mm. The velocity of coal-water slurries in the pipeline varied from 0.075 m/s to 1.382 m/s and that of Fly Ash-Water slurries varied from 0.140 m/s to 1.513 m/s. Based on experimental data the following two correl-ations have been proposed....