Blast Furnace Operation Method And Blast Furnace Operation Apparatus

Abstract: The present invention relates to a blast furnace operation method and a blast furnace operation apparatus applied thereto, the method comprising the steps of: preparing an iron-containing material (M) and coke (C) as charging materials to be charged in a blast furnace; determining the charging amounts of (M) and (C) according to the amount of reduced iron-containing material contained in (M), the charging ratio (M/C) of (M) to (C) being greater than a predetermined standard charging ratio (MS/CS); charging the charging materials in the blast furnace according to the determined charging amounts; and manufacturing molten iron from the charging materials. The disclosed the blast furnace operation method and blast furnace operation apparatus can improve operation efficiency.

Patent Information

Application #

Filing Date

10 March 2026

Publication Number

14/2026

Publication Type

INA

Invention Field

METALLURGY

Status

Email

Parent Application

Applicants

POSCO CO., LTD

(Goedong-dong), 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Inventors

1. LEE, Sung Hee

108-1502, 66, Duho-ro, Buk-gu, Pohang-si, Gyeongsangbuk-do 37623

2. LEE, Dong Jo

210-1004, 294, Jigok-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37669

Specification

Documents

Application Documents

#	Name	Date
1	202617028074-TRANSLATION OF PRIORITY DOCUMENTS ETC. [10-03-2026(online)].pdf	2026-03-10
2	202617028074-STATEMENT OF UNDERTAKING (FORM 3) [10-03-2026(online)].pdf	2026-03-10
3	202617028074-PROOF OF RIGHT [10-03-2026(online)].pdf	2026-03-10
4	202617028074-PRIORITY DOCUMENTS [10-03-2026(online)].pdf	2026-03-10
5	202617028074-FORM 18 [10-03-2026(online)].pdf	2026-03-10
6	202617028074-FORM 1 [10-03-2026(online)].pdf	2026-03-10
7	202617028074-DRAWINGS [10-03-2026(online)].pdf	2026-03-10
8	202617028074-DECLARATION OF INVENTORSHIP (FORM 5) [10-03-2026(online)].pdf	2026-03-10
9	202617028074-COMPLETE SPECIFICATION [10-03-2026(online)].pdf	2026-03-10
10	202617028074 -Correspondence- 10-03-2026.pdf	2026-03-10
11	202617028074 -Correspondence - 2 - 10-03-2026.pdf	2026-03-10
12	202617028074 - OTHERS - 10-03-2026.pdf	2026-03-10
13	202617028074 - GPA - 10-03-2026.pdf	2026-03-10
14	202617028074-FORM-26 [13-03-2026(online)].pdf	2026-03-13
15	202617028074 -Correspondence- 19-03-2026.pdf	2026-03-19
16	202617028074 -Correspondence - 2 - 19-03-2026.pdf	2026-03-19
17	202617028074 - OTHERS - 19-03-2026.pdf	2026-03-19