Method and apparatus for cooling burned materials discharged by a furnace for burning cement, magnesite, lime or the like

Claim 1

METHOD FOR COOLING THE BURNED MATERIAL DISCHARGED BY A FURNACE, KILN OR THE LIKE FOR BURNING SHCH MATERIALS AS CEMENT, MAGNESITE AND LIME, COMPRISING THE STEPS OF FEEDING THE BURNED MATERIAL OVER A SLOTTED SLIDE INTO THE FIRST CHAMBER OF A COOLER AND ONTO A PERMEABLE CONVEYOR, BLOWING FRESH AIR UPWARDLY THROUGH SAID SLIDE AND THROUGH SAID CONVEYOR AND THROUGH THE MATERIAL ON SAID SLIDE AND ON THE CONVEYOR, CONTINUOUSLY MOVING SAID CONVEYOR AND THE BURNED MATERIAL THEREON, CONDUCTING AIR FROM THE DISCHARGE OPENING OF THE COOLER INTO THE THIRD CHAMBER OF SAID COOLER DOWNWARDLY THROUGH THE LAYER OF MATERIAL ON THE CONVEYOR PORTION THEREIN AND THROUGH SAID CONVEYOR PORTION, CONDUCTING SAID AIR FROM SAID THIRD CHAMBER TO THE SECOND CHAMBER OF SAID COOLER, DOWNWARDLY ONTO THE BURNED MATERIAL ON AND THROUGH THE CONVEYOR PORTION THEREIN AND THENCE INTO AND THROUGH AN AIR DISCHARGE DUCT FOR USE OTHER THAN AS SECONDARY AIR IN THE BURNING OR CALCINATING PROCESS.