METHOD AND APPARATUS FOR DRYING FINE PARTICLES WITH POWDER PARTICLE FLUIDIZED BED

摘要

PURPOSE: To provide a method and an apparatus for continuously drying fine particles to be swelled from submicron to several μm or slurry containing fine particles from submicron to several μm and solution in which fine particles of submicron to several μm are generated when evaporated. ;CONSTITUTION: A fluidized bed dryer has a cylindrical body 7 having no dispersing plate. The dryer fills medium particles of about 300-2500μm in the lower part of its body, supplies a predetermined temperature gas of 80-300°C from the conical gas introducing unit 15 of the lower part of the body, vigorously fluidizes the particles, supplies slurry of the particles or swelled fine particles, and efficiently continuously dries the particles.;COPYRIGHT: (C)1995,JPO