Heat transfer apparatus

Claim 1

APPARATUS FOR TRANSFERRING HEAT BETWEEN PULVERULENT MATERIALS WHICH ARE TO BE MAINTAINED OUT OF CONTACT, SAID APPARATUS COMPRISING ENCLOSURE MEANS; THERMALLY CONDUCTIVE FLUID-TIGHT PARTITION MEANS PROVIDED IN AND SUBDIVIDING THE INTERIOR OF SAID ENCLOSURE MEANS INTO AT LEAST TWO ADJACENT COMPARTMENTS; FEED MEANS COMMUNICATING WITH SAID ENCLOSURE MEANS FOR INTRODUCING PULVERULENT MATERIALS INTO SAID COMPARTMENTS; WITHDRAWING MEANS COMMUNICATING WITH THE INDIVIDUAL COMPARTMENTS SPACED FROM SAID FEED MEANS FOR RECEIVING FLUIDIZED MATERIAL THEREFROM; AND FLUIDIZING MEANS OPERATIVELY CONNECTED WITH SAID ENCLOSURE MEANS AND INCLUDING MEANS FOR PASSING A GAS THROUGH THE PULVERULENT MATERIAL IN AT LEAST ONE OF SAID COMPARTMENTS FOR FLUIDIZING SAID MATERIAL THEREIN AND FOR CAUSING THE THUS FLUIDIZED MATERIAL TO FLOW IN SAID ONE COMPARTMENT TOWARD THE RESPECTIVE WITHDRAWING MEANS ALONG SAID PARTITION MEANS, AND MEANS FOR PASSING A GAS THROUGH THE PULVERULENT MATERIAL IN THE OTHER COMPARTMENT FOR FLUIDIZING THE MATERIAL THEREIN AND CAUSING THE THUS FLUIDIZED MATERIAL TO FLOW TOWARD THE RESPECTIVE WITHDRAWING MEANS AND ALONG SAID PARTITION MEANS IN COUNTERFLOW TO THE MATERIAL IN SAID ONE COMPARTMENT, WHEREBY SAID THUS FLUIDIZED MATERIALS EXCHANGE HEAT WITH ONE ANOTHER THROUGH THE INTERMEDIARY OF SAID THERMALLY CONDUCTIVE PARTITION MEANS WHEN THE TWO FLUIDIZED MATERIALS IN SAID COMPARTMENTS ARE AT DIFFERENT TEMPERATURES.