The Flow Properties of a Gas-solid Contactor with Inclined Baffle Plates

Abstract

The behavior of particles in a gas-solid contactor with inclined baffle plates to form a zig-zag path has been experimentally studied. In this contactor, solid particles trickle down over the baffles and are spouted into the opening between the wall and the plate edge by upflowing gas. The pitch, open spacing fraction and inclination of the baffles are chosen as parameters of the experimental condition. The loading and flooding points are observed at critical gas velocities in using this apparatus. A definite increase in the solid holdup and residence time of solid particles is also observed at the loading point, and particles choked the column at the flooding point. To investigate these properties thoroughly, trajectories of a single partcle are calculated in a two-dimensional field of the gas velocity measured with a hot wire anemometer.