FULLER 4.5 M DIA MIXED BECKY KILN

THE FULLER 4.5 M DIA MIXED FEED KILN IS DESIGNED FOR THE CONTINUOUS CALCINATION OF LIMESTONE USING SOLID CARBON FUEL. IT FEATURES A VERTICAL SHAFT CONFIGURATION OPERATING UNDER PRESSURE TO MAINTAIN OUTWARD GAS FLOW AND STABLE COMBUSTION CONDITIONS. THE KILN HAS AN INTERNAL DIAMETER OF 4.5 METERS (177 INCHES) AND INCLUDES WEIGH HOPPERS FOR LIMESTONE AND CARBON FUEL (COKE), A SKIP HOIST, SURGE HOPPER, AND ROTATING CHARGE HOPPER EQUIPPED WITH A CONE VALVE AND STONE DISTRIBUTION MECHANISM TO ENSURE EVEN FEED AND MATERIAL FLOW. COMBUSTION AIR IS INTRODUCED THROUGH MULTIPLE PERIPHERAL DISCHARGE FEEDERS AND A CENTRAL MUSHROOM-TYPE DISTRIBUTOR TO ACHIEVE UNIFORM TEMPERATURE DISTRIBUTION. THE REFRACTORY LINING IS APPROXIMATELY 16 INCHES THICK AND INSTALLED IN THREE LAYERS WITH PROGRESSIVE INSULATING VALUE TO MINIMIZE HEAT LOSS. TYPICAL OPERATING RATIOS INCLUDE 6 TO 7 PERCENT COKE BY WEIGHT OF FEED AND FUEL CONSUMPTION OF 3.1 TO 3.4 MILLION BTU PER SHORT TON OF LIME. THE UNIT PRODUCES LIME WITH 91 TO 93 PERCENT AVAILABLE CAO AND 1.3 TO 2.0 PERCENT LOSS ON IGNITION, PROVIDING UNIFORM CALCINATION AND REDUCED CLINKERING COMPARED TO CONVENTIONAL MIXED FEED KILNS.