DE69423630T2 - Stahlherstellung im konverter mit entphosphorungsstufe - Google Patents

Stahlherstellung im konverter mit entphosphorungsstufe

Info

Publication number
DE69423630T2
DE69423630T2 DE69423630T DE69423630T DE69423630T2 DE 69423630 T2 DE69423630 T2 DE 69423630T2 DE 69423630 T DE69423630 T DE 69423630T DE 69423630 T DE69423630 T DE 69423630T DE 69423630 T2 DE69423630 T2 DE 69423630T2
Authority
DE
Germany
Prior art keywords
dephosphorus
converter
level
steel manufacturing
steel
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.)
Revoked
Application number
DE69423630T
Other languages
English (en)
Other versions
DE69423630D1 (de
Inventor
Masataka Yano
Yuji Ogawa
Masayuki Arai
Fumio Koizumi
Noriyuki Masumitsu
Hideaki Sasaki
Hiroshi Hirata
Yoshiaki Kusano
Hirobumi Maede
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.)
Nippon Steel Corp
Original Assignee
Nippon 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27519242&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69423630(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP16256493A external-priority patent/JP2958842B2/ja
Priority claimed from JP32908693A external-priority patent/JP2896838B2/ja
Priority claimed from JP32908893A external-priority patent/JP2958848B2/ja
Priority claimed from JP01102794A external-priority patent/JP3239197B2/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Application granted granted Critical
Publication of DE69423630D1 publication Critical patent/DE69423630D1/de
Publication of DE69423630T2 publication Critical patent/DE69423630T2/de
Anticipated expiration legal-status Critical
Revoked 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing 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
    • C21C5/30—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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/567—Manufacture of steel by other methods operating in a continuous way
    • 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
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C21C7/068—Decarburising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0075—Regulation of the charge quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0078—Regulation of the speed of the gas through the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • F27D2027/002—Gas stirring
DE69423630T 1993-06-30 1994-06-30 Stahlherstellung im konverter mit entphosphorungsstufe Revoked DE69423630T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP16256493A JP2958842B2 (ja) 1993-06-30 1993-06-30 転炉精錬方法
JP16579093 1993-07-05
JP32908693A JP2896838B2 (ja) 1993-12-24 1993-12-24 溶鋼製造法
JP32908893A JP2958848B2 (ja) 1993-12-24 1993-12-24 溶銑の脱りん方法
JP01102794A JP3239197B2 (ja) 1993-07-05 1994-02-02 転炉製鋼法
PCT/JP1994/001070 WO1995001458A1 (fr) 1993-06-30 1994-06-30 Procede de production et d'acier au moyen d'un convertisseur

Publications (2)

Publication Number Publication Date
DE69423630D1 DE69423630D1 (de) 2000-04-27
DE69423630T2 true DE69423630T2 (de) 2000-11-09

Family

ID=27519242

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69423630T Revoked DE69423630T2 (de) 1993-06-30 1994-06-30 Stahlherstellung im konverter mit entphosphorungsstufe

Country Status (9)

Country Link
EP (1) EP0714989B1 (de)
KR (1) KR0159180B1 (de)
CN (1) CN1041843C (de)
AU (1) AU680268B2 (de)
BR (1) BR9406985A (de)
CA (1) CA2166097C (de)
DE (1) DE69423630T2 (de)
ES (1) ES2143547T3 (de)
WO (1) WO1995001458A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3854482B2 (ja) * 2001-09-27 2006-12-06 新日本製鐵株式会社 溶銑の予備処理方法及び精錬方法
JP3940280B2 (ja) * 2001-09-27 2007-07-04 新日本製鐵株式会社 溶銑の脱りん方法
DE10215839A1 (de) * 2002-04-10 2003-11-06 Sms Demag Ag Verfahren und Einrichtung zum Erzeugen von C-Stählen oder nichtrostenden Stählen durch Frischen von phosphorreichem Roheisen im Elektrolichtbogen-Ofen oder im Konverter-Gefäß
DE10215828B4 (de) * 2002-04-10 2007-08-02 Sms Demag Ag Verfahren und Einrichtung zum Erzeugen von nichtrostendem Stahl, insbesondere von chrom- oder chromnickelhaltigem Edelstahl
EP1608652A1 (de) * 2003-03-31 2005-12-28 Vernalis (Cambridge) Limited Pyrazolopyrimidinverbindungen und deren verwendung in der medizin
EP1524322A3 (de) * 2003-10-15 2006-08-02 Milan Adelt Verfahren zur Herstellung von geschmolzenem Stahl mit Recycling von Schlacken im Konverter, sowie Vorrichtung zum Einsatz dieser Methode
KR100749023B1 (ko) * 2006-05-26 2007-08-14 주식회사 포스코 극저린강의 전로 정련 방법
CN101864508B (zh) * 2010-07-02 2012-10-24 张觉灵 小渣量转炉炼钢方法
CN102071277B (zh) * 2010-12-23 2012-10-24 攀钢集团钢铁钒钛股份有限公司 一种转炉脱磷炼钢方法
CN102168160B (zh) * 2011-03-08 2013-04-17 武汉钢铁(集团)公司 使锰矿直接还原合金化的转炉炼钢工艺
JP5979017B2 (ja) * 2012-01-19 2016-08-24 Ｊｆｅスチール株式会社 溶銑の精錬方法
WO2014112521A1 (ja) * 2013-01-18 2014-07-24 Ｊｆｅスチール株式会社 溶銑の予備処理方法
CN104451022B (zh) * 2014-12-19 2016-03-16 山东钢铁股份有限公司 一种降低脱磷炉终渣全铁含量的方法
KR101660774B1 (ko) 2015-07-09 2016-09-28 주식회사 포스코 전로 조업 방법
JP6589998B2 (ja) * 2016-01-28 2019-10-16 日本製鉄株式会社 排滓方法、スラグの製造方法及び流下スラグのエネルギー減衰構造
WO2018012257A1 (ja) * 2016-07-14 2018-01-18 新日鐵住金株式会社 溶鋼中りん濃度推定方法及び転炉吹錬制御装置
CN106282487B (zh) * 2016-09-13 2019-03-29 北京北科中钢工程技术有限公司 一种铁水预脱磷方法
EP3633051B1 (de) * 2017-05-25 2021-11-17 JFE Steel Corporation Verfahren zur herstellung von stahlblöcken mit hohem mangangehalt
CN109097523B (zh) * 2018-08-31 2019-12-24 钢铁研究总院 一种双渣法冶炼工艺
CN114438276B (zh) * 2022-02-11 2022-08-09 山东钢铁集团永锋临港有限公司 一种缩短转炉冶炼周期的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6823981A (en) * 1980-03-21 1981-10-15 Nippon Steel Corporation Multi-stage steel making
JPS58207314A (ja) * 1982-05-28 1983-12-02 Sumitomo Metal Ind Ltd 鋼の精錬方法
DE3316367A1 (de) * 1983-05-05 1984-11-08 Mannesmann AG, 4000 Düsseldorf Verfahren und einrichtung zum erzeugen von stahl
FR2558482B1 (fr) * 1984-01-25 1989-10-27 Siderurgie Fse Inst Rech Procede d'elaboration de l'acier par preaffinage de la fonte
JPH0472007A (ja) * 1990-07-10 1992-03-06 Nippon Steel Corp 溶鋼製造法
JP2607328B2 (ja) * 1992-03-04 1997-05-07 新日本製鐵株式会社 溶銑の脱りん方法
JP2607329B2 (ja) * 1992-03-04 1997-05-07 新日本製鐵株式会社 溶銑の脱りん方法

Also Published As

Publication number Publication date
WO1995001458A1 (fr) 1995-01-12
EP0714989A1 (de) 1996-06-05
CN1041843C (zh) 1999-01-27
CA2166097A1 (en) 1995-01-12
EP0714989B1 (de) 2000-03-22
CN1128050A (zh) 1996-07-31
EP0714989A4 (de) 1997-06-25
AU7083194A (en) 1995-01-24
DE69423630D1 (de) 2000-04-27
KR960703440A (ko) 1996-08-17
KR0159180B1 (ko) 1999-01-15
AU680268B2 (en) 1997-07-24
CA2166097C (en) 2002-01-15
BR9406985A (pt) 1996-03-05
ES2143547T3 (es) 2000-05-16

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation