EP3279340A4 - Method for operating top-blown converter - Google Patents

Method for operating top-blown converter Download PDF

Info

Publication number
EP3279340A4
EP3279340A4 EP16772595.1A EP16772595A EP3279340A4 EP 3279340 A4 EP3279340 A4 EP 3279340A4 EP 16772595 A EP16772595 A EP 16772595A EP 3279340 A4 EP3279340 A4 EP 3279340A4
Authority
EP
European Patent Office
Prior art keywords
blown converter
operating top
operating
blown
converter
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.)
Granted
Application number
EP16772595.1A
Other languages
German (de)
French (fr)
Other versions
EP3279340A1 (en
EP3279340B1 (en
Inventor
Yukio Takahashi
Shota Amano
Toshinori Tawa
Yuichi Uchida
Yuji Miki
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 EP3279340A1 publication Critical patent/EP3279340A1/en
Publication of EP3279340A4 publication Critical patent/EP3279340A4/en
Application granted granted Critical
Publication of EP3279340B1 publication Critical patent/EP3279340B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • 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
    • C21C5/4606—Lances or injectors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
EP16772595.1A 2015-03-30 2016-03-25 Method of operating top and bottom blowing converter Active EP3279340B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015068542 2015-03-30
PCT/JP2016/059541 WO2016158714A1 (en) 2015-03-30 2016-03-25 Method for operating top-blown converter

Publications (3)

Publication Number Publication Date
EP3279340A1 EP3279340A1 (en) 2018-02-07
EP3279340A4 true EP3279340A4 (en) 2018-02-07
EP3279340B1 EP3279340B1 (en) 2020-11-18

Family

ID=57004303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16772595.1A Active EP3279340B1 (en) 2015-03-30 2016-03-25 Method of operating top and bottom blowing converter

Country Status (7)

Country Link
EP (1) EP3279340B1 (en)
JP (1) JP6358454B2 (en)
KR (1) KR102026765B1 (en)
CN (1) CN107429303B (en)
BR (1) BR112017021087B1 (en)
TW (1) TWI585208B (en)
WO (1) WO2016158714A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112021019932A2 (en) * 2019-04-05 2021-12-07 Jfe Steel Corp Refining Vessel for High Temperature Melting
CN113234884A (en) * 2021-04-23 2021-08-10 甘肃酒钢集团宏兴钢铁股份有限公司 Method for solving interference between positions of top-blown gas and bottom-blown lance of converter
CN115466814B (en) * 2022-08-30 2023-09-15 北京科技大学 Converter and method for improving dynamic characteristics of molten pool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001012A1 (en) * 1980-09-19 1982-04-01 Kato Y Method for smelting using top-and bottom-blown converter
JP2000309816A (en) * 1999-04-23 2000-11-07 Sumitomo Metal Ind Ltd METHOD FOR DECARBURIZE-REFINING MOLTEN Cr-CONTAINING STEEL
JP2013142189A (en) * 2012-01-12 2013-07-22 Nippon Steel & Sumitomo Metal Corp Method for reducing spitting in decarburize-refining in converter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816013A (en) * 1981-07-17 1983-01-29 Kawasaki Steel Corp Operating method for top and bottom blown converter and top blowing lance for operation of top and bottom blown converter
JPS60165313A (en) 1984-02-07 1985-08-28 Nippon Steel Corp Top blow lance for refining molten metal
JP3167888B2 (en) * 1995-07-27 2001-05-21 川崎製鉄株式会社 Decarburization refining method of chromium-containing molten steel and upper blowing lance for refining gas
JP4120161B2 (en) * 2000-01-24 2008-07-16 Ｊｆｅスチール株式会社 Operation method of iron bath smelting reduction furnace
JP2002105525A (en) * 2000-09-26 2002-04-10 Kawasaki Steel Corp Top-blown converter
JP2002285224A (en) 2001-03-23 2002-10-03 Nippon Steel Corp Blowing method into converter and blowing lance for converter
DE102004016681A1 (en) * 2004-04-05 2005-12-22 Ispat Industries Ltd., Taluka-Pen Processes and equipment for producing and increasing the annual production volume of bulk steel or high grade steel grades in a two-vessel plant
JP5724761B2 (en) * 2011-08-31 2015-05-27 Ｊｆｅスチール株式会社 Converter blowing method
US9580764B2 (en) * 2011-10-17 2017-02-28 Jfe Steel Corporation Top-blowing lance and method for refining molten iron using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001012A1 (en) * 1980-09-19 1982-04-01 Kato Y Method for smelting using top-and bottom-blown converter
JP2000309816A (en) * 1999-04-23 2000-11-07 Sumitomo Metal Ind Ltd METHOD FOR DECARBURIZE-REFINING MOLTEN Cr-CONTAINING STEEL
JP2013142189A (en) * 2012-01-12 2013-07-22 Nippon Steel & Sumitomo Metal Corp Method for reducing spitting in decarburize-refining in converter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2016158714A1 *

Also Published As

Publication number Publication date
EP3279340A1 (en) 2018-02-07
CN107429303B (en) 2019-12-31
WO2016158714A1 (en) 2016-10-06
CN107429303A (en) 2017-12-01
TW201641696A (en) 2016-12-01
BR112017021087A2 (en) 2018-07-03
TWI585208B (en) 2017-06-01
BR112017021087B1 (en) 2021-08-31
JPWO2016158714A1 (en) 2017-05-25
KR102026765B1 (en) 2019-09-30
KR20170117168A (en) 2017-10-20
JP6358454B2 (en) 2018-07-18
EP3279340B1 (en) 2020-11-18

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