Title:
OPERATION METHOD OF BLAST FURNACE
Document Type and Number:
Japanese Patent JP2022152721
Kind Code:
A
Abstract:
To provide an operation method of a blast furnace that enables proper furnace heat management at start-up after banking of the blast furnace.SOLUTION: An operation method of a blast furnace sets in advance a target numerical condition of a volume evaluation value to evaluate a volume of a SiO gas generation area formed around a raceway, and at least one of a hot metal Si concentration or a hot metal extraction ratio is adjusted so that the volume evaluation value satisfies the target numerical condition.SELECTED DRAWING: Figure 3
Inventors:
ORIMOTO TAKASHI
Application Number:
JP2021055591A
Publication Date:
October 12, 2022
Filing Date:
March 29, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
C21B5/00
Attorney, Agent or Firm:
Katsufumi Mizuno
Makoto Ide
Hiroshi Suzawa
Makoto Ide
Hiroshi Suzawa