Fluidized bed heat exchanger having an insulated fluid cooled air distributor plate assembly

Abstract From the Canadian patent

A fluidized bed heat exchanger in which an air distributor plate assembly is disposed within an enclosure for supporting a bed of particulate material. The plate assembly includes a plurality of horizontal, spaced tubes through which water is passed to cool the assembly . Air is passed from an air plenum through openings formed in the plate assembly to fluidize the particulate material. Insulation is disposed on the lower surface of the plate assembly to insulate the latter from the heat of the fluidizing air and, the upper surface of the plate assembly is insulated from the high temperatures occurring in the bed.