FLUIDIZED BED COMPRESSION GRANULATOR

摘要

PROBLEM TO BE SOLVED: To perform excellent fluidized bed compression granulation by preventing excessive compacting in granulation. SOLUTION: In the apparatus for performing fluidization and compacting by switching a gas from a blower to a closed circuit for fluidization and a closed circuit for compacting from each other, a by-pass circuit for returning to the blower directly from the mid-way of the closed circuit for compacting is provided. When the pressure in a granulating vessel is increased, part of the gas is lead to the by-pass circuit.