Patent ID: 7241425

Claim:
A fluidized bed apparatus for batch-by-batch or continuous process control, comprising: an air inlet chamber, a fluidization region, and a gas outlet, at least two processing regions ( 6 ), each including two gas flow devices in a region between the air inlet chamber and the fluidization region for supplying fluidization means, and each of the processing regions ( 6 ) having corresponding pairs of jet inlet walls and jet return flow walls, as well as the side walls, the corresponding pairs of jet inlet walls and the jet return flow walls are inclined relative to vertical such that they each form a cone, an expanded cross section of the fluidized bed apparatus located above the jet inlet walls and jet return flow walls, where the outlet for outgoing air is arranged, the processing regions ( 6 ) are connected to each other by at least one overflow channel ( 5 ) and a first of the processing regions ( 6 ) is provided with a solids inlet ( 13 ) and a last of the processing regions ( 6 ) is provided with a solids outlet ( 7 ).