SUPPLIED HEAT QUANTITY ESTIMATION METHOD, SUPPLIED HEAT QUANTITY ESTIMATION DEVICE, AND OPERATION METHOD FOR BLAST FURNACE

WIPO Patent Application WO/2022/168396

A1

A supplied heat quantity estimation method according to the present invention uses a heat quantity to be supplied into a blast furnace and a manufacturing speed for molten iron in the blast furnace to estimate the heat quantity to be supplied to pig iron in the blast furnace. Said method includes an estimation step for estimating a change in sensible heat removed due to gas which passes through the inside of the furnace and a change in sensible heat added which is supplied by a raw material preheated by means of the gas which passes through the inside of the furnace, and estimating the heat quantity to be supplied to the pig iron in the blast furnace, taking into account the estimated changes in the sensible heat removed and the sensible heat added.

ICHIKAWA KAZUHIRA (JP)
YAMAMOTO TETSUYA (JP)
SATO TAKESHI (JP)
KAWASHIRI YUKI (JP)

PCT/JP2021/042183

August 11, 2022

November 17, 2021

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JFE STEEL CORP (JP)

C21B5/00

JP2018145520A	2018-09-20
JPH10140218A	1998-05-26
KR101572388B1	2015-11-26
JPH02115311A	1990-04-27
JPS4920693B1	1974-05-27
JPH10144265A	1998-05-29
JP2008144265A	2008-06-26
JP2018145520A	2018-09-20

HATANO MICHIHARU, MISAKA YOSHISUKE, MATOBA YOSHIYUKI, OTSUKA KOICHI: "A Mathematical Model of Blast Furnace for Control of Hot Metal Temperature", TRANSACTIONS OF THE IRON AND STEEL INSTITUTE OF JAPAN, IRON AND STEEL INSTITUTE OF JAPAN, JP, vol. 22, no. 7, 1 January 1982 (1982-01-01), JP , pages 524 - 533, XP055955443, ISSN: 0021-1583, DOI: 10.2355/isijinternational1966.22.524

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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