液相流動床における混合粒子の特性

抄録

Behaviour of particle mixtures was investigated in a liquid-fluidized bed experimentally. In the experiment, two kinds of particles of different diameter, and of the same or different materials, were charged in a fluidization column and fluidized by water. Based on the observation of fluidization, a flow pattern map was proposed using the Archimedes number ratio and the terminal velocity ratio, which classifies the two patterns, i.e. separation and homogeneous mix. Measured mean void fractions of particle mixtures were agreed well with the values calculated from those for each particle independently.