Patent ID: 6245300
Filing Date: 2001-06-12
Classification: B04C,F23C,F23J

Abstract:
In a fluidized bed reactor having a vessel for receiving a fluidized bed of solid particles including fuel, and a cyclone separator formed in the upper portion of the vessel by extending the walls of the vessel in a manner to form two end walls and two opposed walls, at least one of the opposed walls having a curved portion defining a generally cylindrical vortex chamber, an inlet opening connecting the vessel to the vortex chamber for introducing a mixture of the particles and gases from the vessel into the vortex chamber where the fuel particles are separated from the gases by centrifugal forces, an outlet opening formed through one of the walls in communication with the vortex chamber for discharging the gases from the vortex chamber, and a passage connecting the vortex chamber to the fluidized bed to pass the separated particles back to the fluidized bed; wherein the improvement comprises:a block disposed adjacent the inlet opening for defining an inlet passage for directing the mixture in into the vortex chamber in a tangential direction thereto.