| 摘要 |
PROBLEM TO BE SOLVED: To provide an operating method for a blast furnace in which raising of the temperature in the side wall on a furnace bottom can easily be restrained. SOLUTION: The side wall temperatures at the furnace bottom are measured with a plurality of thermometers set in the side wall on the furnace bottom of the blast furnace, and a synthetic resin material having the calorie less than that of pulverized fine coal and the decomposition heat larger than that of the pulverized fine coal, is injected from a nozzle positioned at the upper part of the side wall on the furnace bottom in the direction where the measured temperature exceeds a preset control value.
|
