PURPOSE: To control surely the distribution of blast furnace charge with high accuracy by measuring continuously the max. temp. on the surface of the charge at the top of the blast furnace with an IR television camera and controlling the operation by the control values of an influx rate and max. temp.
CONSTITUTION: The max. temp. on the surface of the charge at the top of a blast furnace is continuously measured with an IR television camera provided in the mouth of the blast furnace. The case when the measured value in the late period is relatively lower than the measured value with all the measured values of each charge unit is regarded as an influx phenomenon and the influx ratio is defined as (influx ratio) = (the number of influx generated)/(the number of measurement to be changed over). Control values are adequately made respectively with such reflux ratio and max. temp. The operation is controlled in accordance with said control values, by which the distribution of the charge in the blast furnace is surely controlled with high accuracy in correct timing.
ONO SOU
TSUDA AKIHIRO
NAKAGOME TOMOMICHI
