HYDRO-AIRE

FLUIDIZED BED-TYPE COOLERS, FOR COOLING GRANULAR AND PARTICULATE MATERIALS, EACH SUCH COOLER COMPRISING A VESSEL HAVING A SERIES OF BAFFLES THEREWITHIN AND A GAS PERMEABLE FLOOR, AND SAID MATERIAL BEING AERATED BY REASON OF A GAS PASSING THROUGH THE FLOOR AND THEREBY CAUSED TO FLOW PAST A PLURALITY OF COOLING TUBES LOCATED BETWEEN THE BAFFLES