SUPPLIED HEAT QUANTITY ESTIMATION METHOD, SUPPLIED HEAT QUANTITY ESTIMATION DEVICE, SUPPLIED HEAT QUANTITY ESTIMATION PROGRAM, AND BLAST FURNACE OPERATION METHOD
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United States of America Patent
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Issued Date -
Jul 4, 2024
app pub date -
Mar 25, 2022
filing date -
Jun 28, 2021
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Abstract
A supplied heat quantity estimation method estimates a quantity of heat supplied to pig iron in a blast furnace from a quantity of heat supplied into the blast furnace and a production speed of molten iron in the blast furnace, and includes estimating a change in carried out sensible heat by in-furnace passing gas and a change in carried in sensible heat supplied by a raw material preheated by the in-furnace passing gas, and estimating the quantity of heat supplied to pig iron in the blast furnace in consideration of the estimated changes of the carried out sensible heat and the carried in sensible heat. The estimating includes estimating the changes of the carried out sensible heat and the carried in sensible heat, and estimating a quantity of heat held in deadman coke present in the blast furnace to estimate the quantity of heat supplied to pig iron.
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