MANUFACTURING APPARATUS OF MOLTEN IRON AND MANUFACTURING METHOD OF MOLTEN IRON

Provided is a manufacturing method of molten iron, which comprises the following steps of: mixing first coke with second coke having lower reactivity and higher hot strength than the first coke; charging the mixed coke into a blast furnace and charging iron ore into the blast furnace; and manufactur...

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Bibliographic Details
Main Authors BAEK, CHAN YEONG, PARK, JI OOK, KIM, JUN GYU
Format Patent
LanguageEnglish
Korean
Published 10.06.2019
Subjects
CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
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Summary:Provided is a manufacturing method of molten iron, which comprises the following steps of: mixing first coke with second coke having lower reactivity and higher hot strength than the first coke; charging the mixed coke into a blast furnace and charging iron ore into the blast furnace; and manufacturing molten iron in the blast furnace, wherein difference in hot strength between the first coke and the second coke is 10 to 32 CSR. 제1코크스 및 상기 제1코크스보다 반응성이 낮고, 열간강도가 높은 제2코크스를 혼합하는 단계; 상기 혼합된 코크스를 고로에 장입시키고, 철광석을 상기 고로에 장입시키는 단계; 및 상기 고로에서 용선을 제조하는 단계;를 포함하며, 상기 제1코크스 및 제2코크스의 열간강도 차이는 10 내지 32CSR인 용선 제조방법이 소개된다.
Bibliography:Application Number: KR20170163542