Movement and dispersion of large fuel particles in fluidized beds. measuremdent of trajectory by electromagnetic fields and by acoustical methods

摘要

The mixing and segregatio behavior of spherical solids between 30 mm and 80 mm in diameter in a bubbling fluidized bed on quartz sand has been investigated. The experimental system used is a cold-air fluidized bed of 0.45 m x 0.45 m bed area and up to 0.6 m bed height. Binary systems particle/sand have been studied using three different sizes of sand (Geldart B-D) and varying the fluidization velocity and the size, density and volumetric fraction of the large solids.