EP4071254A4 - Integrated tuyere for converter - Google Patents

Integrated tuyere for converter

Info

Publication number
EP4071254A4
EP4071254A4 EP21765036.5A EP21765036A EP4071254A4 EP 4071254 A4 EP4071254 A4 EP 4071254A4 EP 21765036 A EP21765036 A EP 21765036A EP 4071254 A4 EP4071254 A4 EP 4071254A4
Authority
EP
European Patent Office
Prior art keywords
converter
integrated tuyere
tuyere
integrated
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
EP21765036.5A
Other languages
German (de)
French (fr)
Other versions
EP4071254A1 (en
Inventor
Kazuhiko Takeuchi
Taiji Edamoto
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.)
Krosaki Harima Corp
Original Assignee
Krosaki Harima 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 Krosaki Harima Corp filed Critical Krosaki Harima Corp
Publication of EP4071254A1 publication Critical patent/EP4071254A1/en
Publication of EP4071254A4 publication Critical patent/EP4071254A4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/48—Bottoms or tuyéres of converters
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/072—Treatment with gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP21765036.5A 2020-03-04 2021-02-24 Integrated tuyere for converter Pending EP4071254A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020037083A JP6691643B1 (en) 2020-03-04 2020-03-04 Integrated tuyere for converter
PCT/JP2021/006825 WO2021177101A1 (en) 2020-03-04 2021-02-24 Integrated tuyere for converter

Publications (2)

Publication Number Publication Date
EP4071254A1 EP4071254A1 (en) 2022-10-12
EP4071254A4 true EP4071254A4 (en) 2024-01-24

Family

ID=70413888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21765036.5A Pending EP4071254A4 (en) 2020-03-04 2021-02-24 Integrated tuyere for converter

Country Status (6)

Country Link
EP (1) EP4071254A4 (en)
JP (1) JP6691643B1 (en)
CN (1) CN114502749A (en)
BR (1) BR112022011368A2 (en)
TW (1) TWI773163B (en)
WO (1) WO2021177101A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449701A (en) * 1982-08-23 1984-05-22 Pennsylvania Engineering Corporation Tuyere for the injection of gases into a metallurgical vessel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853048B2 (en) * 1980-06-20 1983-11-26 住友金属工業株式会社 Tuyeres for molten metal smelting
JPS6013405B2 (en) * 1980-11-14 1985-04-06 住友金属工業株式会社 Tuyeres for molten metal smelting
JPS57121668U (en) * 1981-01-19 1982-07-28
JP4765372B2 (en) 2005-03-31 2011-09-07 Ｊｆｅスチール株式会社 Gas blown tuyere
JP2006283065A (en) * 2005-03-31 2006-10-19 Jfe Steel Kk Gas-blowing tuyere
JP2009068099A (en) * 2007-09-18 2009-04-02 Jfe Steel Kk Structure for gas-blowing tuyere in refining vessel
JP6011808B2 (en) 2013-11-21 2016-10-19 Ｊｆｅスチール株式会社 Annular tuyere for gas injection
JP6892063B2 (en) * 2018-03-29 2021-06-18 東京窯業株式会社 Gas blowing plug
CN109628687A (en) * 2018-12-30 2019-04-16 钢铁研究总院 A method of preventing converter bottom blowing gas-feeding element tuyere position bleed-out

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449701A (en) * 1982-08-23 1984-05-22 Pennsylvania Engineering Corporation Tuyere for the injection of gases into a metallurgical vessel

Also Published As

Publication number Publication date
JP2021138997A (en) 2021-09-16
JP6691643B1 (en) 2020-04-28
TWI773163B (en) 2022-08-01
CN114502749A (en) 2022-05-13
BR112022011368A2 (en) 2022-09-13
TW202202630A (en) 2022-01-16
WO2021177101A1 (en) 2021-09-10
EP4071254A1 (en) 2022-10-12

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Legal Events

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A4 Supplementary search report drawn up and despatched

Effective date: 20231221

RIC1 Information provided on ipc code assigned before grant

Ipc: C21C 7/072 20060101ALI20231215BHEP

Ipc: C21C 5/48 20060101AFI20231215BHEP