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PH12012500625A1 - Top lance for refining and method for refining molten iron using same - Google Patents

Top lance for refining and method for refining molten iron using same

Info

Publication number
PH12012500625A1
PH12012500625A1 PH1/2012/500625A PH12012500625A PH12012500625A1 PH 12012500625 A1 PH12012500625 A1 PH 12012500625A1 PH 12012500625 A PH12012500625 A PH 12012500625A PH 12012500625 A1 PH12012500625 A1 PH 12012500625A1
Authority
PH
Philippines
Prior art keywords
refining
top lance
supplying
lance
nozzles
Prior art date
Application number
PH1/2012/500625A
Other languages
English (en)
Inventor
Yuma Igarashi
Noriyasu Kato
Masayuki Koge
Futoshi Ogasawara
Yuichi Uchida
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 PH12012500625A1 publication Critical patent/PH12012500625A1/en

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
    • C21C5/4606—Lances or injectors
    • C21C5/4613—Refractory coated lances; Immersion lances
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • 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
    • C21C5/36—Processes yielding slags of special composition
    • 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
    • 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
    • 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
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • 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
    • C21C5/305—Afterburning

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
PH1/2012/500625A 2009-10-22 2010-10-21 Top lance for refining and method for refining molten iron using same PH12012500625A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009243268 2009-10-22
JP2010233357A JP5644355B2 (ja) 2009-10-22 2010-10-18 溶銑の精錬方法
PCT/JP2010/069118 WO2011049240A1 (ja) 2009-10-22 2010-10-21 精錬用上吹きランス及びそれを用いた溶銑の精錬方法

Publications (1)

Publication Number Publication Date
PH12012500625A1 true PH12012500625A1 (en) 2022-10-03

Family

ID=43900460

Family Applications (1)

Application Number Title Priority Date Filing Date
PH1/2012/500625A PH12012500625A1 (en) 2009-10-22 2010-10-21 Top lance for refining and method for refining molten iron using same

Country Status (7)

Country Link
JP (1) JP5644355B2 (zh)
KR (1) KR101346726B1 (zh)
CN (1) CN102575306B (zh)
BR (1) BR112012009231B1 (zh)
PH (1) PH12012500625A1 (zh)
TW (1) TWI448555B (zh)
WO (1) WO2011049240A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9493854B2 (en) 2011-12-20 2016-11-15 Jfe Steel Corporation Converter steelmaking method
JP5915568B2 (ja) * 2012-03-01 2016-05-11 Ｊｆｅスチール株式会社 転炉型精錬炉における溶銑の精錬方法
CN104508152B (zh) * 2012-07-10 2016-10-26 卢马金属有限公司 用于制备金属和维持装载及吹制操作条件的吹制枪
KR102100875B1 (ko) * 2013-05-06 2020-04-16 테크놀라지칼 리소시스 피티와이. 리미티드. 고형물 주입 랜스
JP2017002331A (ja) * 2015-06-04 2017-01-05 株式会社神戸製鋼所 溶銑の脱りん処理における固体酸素源の供給方法
CN106086289B (zh) * 2016-08-01 2018-05-29 朱荣 一种采用顶吹氧枪喷粉冶炼不锈钢母液的炼钢方法及装置
KR101798844B1 (ko) * 2016-09-02 2017-11-17 주식회사 포스코 랜스 및 이를 이용한 조업 방법
JP6702369B2 (ja) * 2017-09-15 2020-06-03 Ｊｆｅスチール株式会社 脱燐処理方法
US11293069B2 (en) 2017-12-22 2022-04-05 Jfe Steel Corporation Method for oxygen-blowing refining of molten iron and top-blowing lance
US11976340B2 (en) 2019-04-05 2024-05-07 Jfe Steel Corporation Refining vessel for high-temperature melt
WO2021229263A1 (en) * 2020-05-11 2021-11-18 Arcelormittal Stirring method of liquid metal and associated device
CN114369728B (zh) * 2021-12-07 2023-09-01 广西金川有色金属有限公司 一种精炼炉顶吹氧化还原的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866712A (ja) * 1981-10-16 1983-04-21 Nippon Zeon Co Ltd 流動焼却炉付帯設備の腐食防止法
US7600489B2 (en) * 2004-03-04 2009-10-13 H2Gen Innovations, Inc. Heat exchanger having plural tubular arrays
JP4853326B2 (ja) * 2007-02-26 2012-01-11 Ｊｆｅスチール株式会社 精錬用上吹きランス及び精錬用上吹きランスの破孔検知方法
JP5298543B2 (ja) * 2008-01-28 2013-09-25 Ｊｆｅスチール株式会社 転炉操業方法

Also Published As

Publication number Publication date
CN102575306A (zh) 2012-07-11
WO2011049240A1 (ja) 2011-04-28
CN102575306B (zh) 2014-10-01
BR112012009231A2 (pt) 2016-08-23
BR112012009231B1 (pt) 2021-06-01
KR20120064710A (ko) 2012-06-19
TW201130989A (en) 2011-09-16
TWI448555B (zh) 2014-08-11
JP2011106028A (ja) 2011-06-02
KR101346726B1 (ko) 2014-01-02
JP5644355B2 (ja) 2014-12-24

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