AU2023230580A1 - Method for producing molten pig iron - Google Patents

Method for producing molten pig iron Download PDF

Info

Publication number
AU2023230580A1
AU2023230580A1 AU2023230580A AU2023230580A AU2023230580A1 AU 2023230580 A1 AU2023230580 A1 AU 2023230580A1 AU 2023230580 A AU2023230580 A AU 2023230580A AU 2023230580 A AU2023230580 A AU 2023230580A AU 2023230580 A1 AU2023230580 A1 AU 2023230580A1
Authority
AU
Australia
Prior art keywords
carbon
iron
gas
molten pig
pig iron
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
AU2023230580A
Other languages
English (en)
Inventor
Takahide Higuchi
Yuji Iwami
Taichi Murakami
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of AU2023230580A1 publication Critical patent/AU2023230580A1/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
    • 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
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • 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
    • C21B7/002—Evacuating and treating of exhaust gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
AU2023230580A 2022-03-07 2023-02-28 Method for producing molten pig iron Pending AU2023230580A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022-034616 2022-03-07
JP2022034616 2022-03-07
PCT/JP2023/007389 WO2023171467A1 (ja) 2022-03-07 2023-02-28 溶銑の製造方法

Publications (1)

Publication Number Publication Date
AU2023230580A1 true AU2023230580A1 (en) 2024-09-19

Family

ID=87935235

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2023230580A Pending AU2023230580A1 (en) 2022-03-07 2023-02-28 Method for producing molten pig iron

Country Status (8)

Country Link
US (1) US20250179594A1 (enrdf_load_stackoverflow)
EP (1) EP4464799A1 (enrdf_load_stackoverflow)
JP (1) JP7416340B1 (enrdf_load_stackoverflow)
KR (1) KR20240137632A (enrdf_load_stackoverflow)
CN (1) CN118696134A (enrdf_load_stackoverflow)
AU (1) AU2023230580A1 (enrdf_load_stackoverflow)
TW (1) TWI853480B (enrdf_load_stackoverflow)
WO (1) WO2023171467A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250137080A1 (en) * 2022-03-07 2025-05-01 Jfe Steel Corporation Method for manufacturing carbonaceous material-containing agglomerate ore, and method for manufacturing molten pig iron

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4996105B2 (ja) * 2006-02-09 2012-08-08 株式会社神戸製鋼所 竪型炉用炭材内装塊成鉱
JP2012036029A (ja) * 2010-08-04 2012-02-23 Mitsui Mining & Smelting Co Ltd 製鉄所における二酸化炭素からの一酸化炭素への変換システム
JP2012067332A (ja) * 2010-09-21 2012-04-05 Jfe Steel Corp 製鉄用非焼成炭材内装塊成鉱
CN110184405B (zh) * 2019-06-04 2024-05-14 甘肃酒钢集团宏兴钢铁股份有限公司 一种采用酸性含碳金属化球团生产铁水的方法及其装置
CN111690786B (zh) * 2020-07-07 2021-08-13 新疆八一钢铁股份有限公司 一种三段式冶炼铁水的欧冶炉炼铁方法
CN111926133B (zh) * 2020-10-10 2021-01-08 中国恩菲工程技术有限公司 铁基矿物的熔炼方法及熔炼装置

Also Published As

Publication number Publication date
US20250179594A1 (en) 2025-06-05
KR20240137632A (ko) 2024-09-20
WO2023171467A1 (ja) 2023-09-14
JP7416340B1 (ja) 2024-01-17
EP4464799A1 (en) 2024-11-20
JPWO2023171467A1 (enrdf_load_stackoverflow) 2023-09-14
CN118696134A (zh) 2024-09-24
TW202336238A (zh) 2023-09-16
TWI853480B (zh) 2024-08-21

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Legal Events

Date Code Title Description
DA3 Amendments made section 104

Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE INVENTION TITLE TO READ METHOD FOR PRODUCING MOLTEN PIG IRON