EP4502185A4 - Gas reduction blast furnace and method for operating a gas reduction blast furnace - Google Patents

Gas reduction blast furnace and method for operating a gas reduction blast furnace

Info

Publication number
EP4502185A4
EP4502185A4 EP23780848.0A EP23780848A EP4502185A4 EP 4502185 A4 EP4502185 A4 EP 4502185A4 EP 23780848 A EP23780848 A EP 23780848A EP 4502185 A4 EP4502185 A4 EP 4502185A4
Authority
EP
European Patent Office
Prior art keywords
blast furnace
gas reduction
reduction blast
operating
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23780848.0A
Other languages
German (de)
French (fr)
Other versions
EP4502185A1 (en
Inventor
Takeshi Sekiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Simple Labo CoLtd
Simple Labo Co Ltd
Original Assignee
Simple Labo CoLtd
Simple Labo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Simple Labo CoLtd, Simple Labo Co Ltd filed Critical Simple Labo CoLtd
Publication of EP4502185A1 publication Critical patent/EP4502185A1/en
Publication of EP4502185A4 publication Critical patent/EP4502185A4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/007—Conditions of the cokes or characterised by the cokes used
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B2005/005—Selection or treatment of the reducing gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
EP23780848.0A 2022-03-31 2023-03-30 Gas reduction blast furnace and method for operating a gas reduction blast furnace Pending EP4502185A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022068527 2022-03-31
PCT/JP2023/013118 WO2023190840A1 (en) 2022-03-31 2023-03-30 Gas reduction blast furnace and method for operating same

Publications (2)

Publication Number Publication Date
EP4502185A1 EP4502185A1 (en) 2025-02-05
EP4502185A4 true EP4502185A4 (en) 2025-07-23

Family

ID=88202829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23780848.0A Pending EP4502185A4 (en) 2022-03-31 2023-03-30 Gas reduction blast furnace and method for operating a gas reduction blast furnace

Country Status (6)

Country Link
EP (1) EP4502185A4 (en)
JP (1) JP7445842B2 (en)
KR (1) KR20240169087A (en)
CN (1) CN119677877A (en)
TW (1) TW202409298A (en)
WO (1) WO2023190840A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025047735A1 (en) 2023-08-28 2025-03-06 株式会社ＳｉｍｐＬＥ研 Method for pretreating feed material
DE102024121592A1 (en) * 2024-07-30 2026-02-05 Hatch Ltd. REACTOR FOR GAS-BASED DIRECT REDUCTION IN A PRESSURED COUNTERFLOW SHAFT KERNEL

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1114190B1 (en) * 1998-07-24 2003-07-23 Improved Converters, Inc. Blast furnace with narrowed top section and method of using
US10106863B2 (en) * 2014-01-07 2018-10-23 Nippon Steel & Sumitomo Metal Corporation Method for operation of blast furnace

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722867U (en) 1980-07-12 1982-02-05
JP2881840B2 (en) * 1989-09-05 1999-04-12 住友金属工業株式会社 Blast furnace tuyere powder injection method
JPH0790034A (en) 1994-04-28 1995-04-04 Shiro Kobayashi Graft polymer having polyethyleneimine derivative chain as grafted chain and its production
JP2016168281A (en) 2015-03-13 2016-09-23 オムロン株式会社 Control device, control method of control device, control program, and recording medium
JP6538636B2 (en) * 2016-10-28 2019-07-03 Ｊｆｅスチール株式会社 Blast furnace operation method and blast furnace equipment
JP2022068527A (en) 2020-10-22 2022-05-10 株式会社Cureapp System, electronic device, method, and program for adjusting amount of medication intake

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1114190B1 (en) * 1998-07-24 2003-07-23 Improved Converters, Inc. Blast furnace with narrowed top section and method of using
US10106863B2 (en) * 2014-01-07 2018-10-23 Nippon Steel & Sumitomo Metal Corporation Method for operation of blast furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023190840A1 *

Also Published As

Publication number Publication date
TW202409298A (en) 2024-03-01
EP4502185A1 (en) 2025-02-05
KR20240169087A (en) 2024-12-02
WO2023190840A1 (en) 2023-10-05
JP7445842B2 (en) 2024-03-08
CN119677877A (en) 2025-03-21
JPWO2023190840A1 (en) 2023-10-05

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