METHOD FOR CONTROLLING FURNACE HEAT IN BLAST FURNACE

PROBLEM TO BE SOLVED: To provide a method for performing effective furnace heat control in a blast furnace by performing decision in which the long term transition and short term transition of furnace heat are combined while using relatively few sensor data.SOLUTION: Provided is a method for controlling furnace heat in a blast furnace in which a furnace heat level is decided from the temperature of a hot pig iron tapped from a blast furnace, based on sensor data obtained from a sensor fitted to the blast furnace or the time change amount of a furnace heat index obtained from the sensor data, a furnace heat transition level is decided, and next, an operation action in accordance with the furnace heat level and the furnace heat transition level is performed.