Hochofenbetriebsverfahren

Details

Veröffentlichungs-Nr.

EP4807020

Anmeldetag

13. November 2024

Veröffentlichung

17. Juli 2025

Rechtsraum

EP

IPC

C21B5/00, C21B7/18

Abstract

A method for operating a blast furnace according to an aspect of the present disclosure is a method for operating a blast furnace in which an iron raw material containing reduced iron is charged into the blast furnace, the method including: an acquisition process of acquiring in advance an ηCO distribution in a reference operation in which no reduced iron is contained in the iron raw material to be charged; a high ηCO region identification process of defining, as an average ηCO, an average value of ηCO in the ηCO distribution or an ηCO calculated from a top gas, and identifying in advance a high ηCO region in which a relative ηCO, obtained by dividing the ηCO in the ηCO distribution by the average ηCO, is 1.0 or more; and a charging process of charging 75% by mass or more of the reduced iron into the high ηCO region.

Anmelder

Firma

Nippon Steel Corporation

Land

🇯🇵 Japan

Fachgebiete