METHOD OF TESTING DISTRIBUTION OF CHARGE MATERIALS ALONG SECTION OF BLAST FURNACE Russian patent published in 1997 - IPC

FIELD: ferrous metallurgy, namely pig iron production, especially in blast furnaces with cone charging apparatuses and different type profilometers for testing charge distribution along section of furnace. SUBSTANCE: method comprises steps of measuring rate of charge descending in points along radius of furnace mouth in boundaries of equal-area annular zones; determining root-mean-square deviations of rate values in said points and mean values of root-mean-square deviations of charge descending rate in each zones and along the whole section of furnace mouth; determining ore load in each zone according to relation: PH_3m= σw3mn

/σwkn•PH^t, t/t of coke, where σw3mn - mean value of root-mean-square deviations of charge descending rate in annular zone, cm/min; σwkn- mean value of root-mean-square deviation of charge descending rate along section of furnace mouth, cm/min; PH^t- total ore load (quantity of iron containing materials for ton of coke), t/t of coke. EFFECT: enhanced accuracy. 1 tbl