METHOD FOR OPERATING BLAST FURNACE
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United States of America Patent
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Issued Date -
Dec 1, 2022
app pub date -
Oct 19, 2020
filing date -
Oct 19, 2020
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Abstract
A method for operating a blast furnace with which, even in the case where there is an increase in the powder ratio of coke to be charged into the blast furnace, it is possible to achieve the stabilization of blast furnace operation. The method includes blowing air through a tuyere disposed in a lower part of the blast furnace, successively measuring a particle size distribution of coke transported to the blast furnace, and adjusting at least one of a blast volume and a coke ratio in accordance with an index derived from the particle size distribution.
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