CA2696872C - Tuyere for manufacturing molten iron and method for injecting gas using the same - Google Patents

Tuyere for manufacturing molten iron and method for injecting gas using the same Download PDF

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Publication number
CA2696872C
CA2696872C CA2696872A CA2696872A CA2696872C CA 2696872 C CA2696872 C CA 2696872C CA 2696872 A CA2696872 A CA 2696872A CA 2696872 A CA2696872 A CA 2696872A CA 2696872 C CA2696872 C CA 2696872C
Authority
CA
Canada
Prior art keywords
tuyere
oxygen
sealing gas
gas
injection opening
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.)
Expired - Fee Related
Application number
CA2696872A
Other languages
English (en)
French (fr)
Other versions
CA2696872A1 (en
Inventor
Il-Hyun Cho
Do-Seung Kim
Jin-Chan Bae
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of CA2696872A1 publication Critical patent/CA2696872A1/en
Application granted granted Critical
Publication of CA2696872C publication Critical patent/CA2696872C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/16—Arrangements of tuyeres
    • 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
    • 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)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture Of Iron (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
CA2696872A 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same Expired - Fee Related CA2696872C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR20070087315 2007-08-29
KR10-2007-0087315 2007-08-29
KR1020070136401A KR100948927B1 (ko) 2007-08-29 2007-12-24 용철 제조용 풍구 및 이를 이용한 가스 취입 방법
KR10-2007-0136401 2007-12-24
PCT/KR2008/005097 WO2009028909A2 (en) 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same

Publications (2)

Publication Number Publication Date
CA2696872A1 CA2696872A1 (en) 2009-03-05
CA2696872C true CA2696872C (en) 2014-02-25

Family

ID=40692777

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2696872A Expired - Fee Related CA2696872C (en) 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same

Country Status (12)

Country Link
US (1) US20110101576A1 (pt)
EP (1) EP2193212B1 (pt)
JP (1) JP5470251B2 (pt)
KR (1) KR100948927B1 (pt)
CN (1) CN101790589A (pt)
AU (1) AU2008293166B2 (pt)
BR (1) BRPI0815742B1 (pt)
CA (1) CA2696872C (pt)
RU (1) RU2478121C2 (pt)
UA (1) UA93635C2 (pt)
WO (1) WO2009028909A2 (pt)
ZA (1) ZA201001047B (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008050599B3 (de) * 2008-10-09 2010-07-29 Uhde Gmbh Vorrichtung und Verfahren zur Verteilung von Primärluft in Koksöfen
KR20130072684A (ko) * 2011-12-22 2013-07-02 주식회사 포스코 풍구 조립체 및 이를 이용한 용철제조장치
WO2014010660A1 (ja) * 2012-07-13 2014-01-16 Ｊｆｅスチール株式会社 高炉操業方法及び管束型ランス
CA2907833C (en) * 2013-04-03 2017-01-24 Jfe Steel Corporation Blast furnace operation method and lance
US9938593B2 (en) 2013-04-03 2018-04-10 Jfe Steel Corporation Blast furnace operation method
CN104697320B (zh) * 2015-02-15 2016-12-07 德清县众合保温材料厂（普通合伙） 冲天炉
JP6493744B2 (ja) * 2015-03-24 2019-04-03 Ｊｆｅエンジニアリング株式会社 廃棄物ガス化溶融装置及び廃棄物ガス化溶融方法
JP7396319B2 (ja) * 2021-03-23 2023-12-12 Ｊｆｅスチール株式会社 気体還元材の吹込み方法
CN114807480B (zh) * 2022-05-31 2023-07-07 昌黎县兴国精密机件有限公司 喷氢风口小套装置

Family Cites Families (26)

* Cited by examiner, † Cited by third party
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US3397878A (en) * 1965-11-19 1968-08-20 Union Carbide Corp Under-bath tuyere
US3724830A (en) * 1969-08-15 1973-04-03 Joslyn Mfg & Supply Co Molten metal reactor vessel
BE781241A (fr) * 1971-05-28 1972-07-17 Creusot Loire Procede d'affinage des aciers allies contenant du chrome et plus specialement des aciers inoxydables
US3985550A (en) * 1975-01-23 1976-10-12 United States Steel Corporation Method of producing low sulfur steel
DE2633061C3 (de) * 1975-08-14 1980-02-14 Creusot-Loire, Paris Blasverfahren für öfen mit Schmelzschacht, insbesondere Hochöfen und Blasform zur Durchführung des Verfahrens
GB1564738A (en) * 1976-11-25 1980-04-10 British Steel Corp Tuyeres
JPS574137Y2 (pt) * 1979-03-30 1982-01-26
JPS6027723B2 (ja) * 1980-09-26 1985-07-01 新日本製鐵株式会社 溶融鉄中への酸素吹込み羽口の保護方法
JPS5871343A (ja) * 1981-10-22 1983-04-28 Kobe Steel Ltd 溶融金属容器に設けるガス吹込み用ノズル
JPS58113307A (ja) * 1981-12-28 1983-07-06 Sumitomo Metal Ind Ltd 銑鉄の製造方法
US4555266A (en) * 1981-10-05 1985-11-26 Korf Technologies, Inc. Method and apparatus for treating liquid metal in a vessel
JPS63171818A (ja) * 1987-01-09 1988-07-15 Nkk Corp 酸素高炉の羽口
US4754951A (en) * 1987-08-14 1988-07-05 Union Carbide Corporation Tuyere assembly and positioning method
JPH01116022A (ja) * 1987-10-29 1989-05-09 Nkk Corp 溶融炉の底吹きノズル
CA2035542C (en) * 1991-02-01 1996-02-20 David Eric Hall Tuyere injector
DE4136274A1 (de) * 1991-11-04 1993-05-06 Kortec Ag, Zug, Ch Verfahren und vorrichtung zum schutz einer in einer heisswindleitung eines hochofens angeordneten einblasvorrichtung
US5263425A (en) * 1992-02-05 1993-11-23 Koenig Larry E Waste processing system door assembly
FR2702221B1 (fr) * 1993-03-03 1995-04-28 Air Liquide Procédé d'obtention de métal au haut-fourneau ou au cubilot.
JP3523716B2 (ja) * 1994-11-02 2004-04-26 Ｊｆｅスチール株式会社 スクラップ溶解法
KR970009084B1 (ko) * 1994-12-29 1997-06-05 김만제 탄소성분을 포함한 미분체 용융장치 및 이를 이용한 미분체 용융방법
JPH09272907A (ja) * 1996-04-05 1997-10-21 Nippon Steel Corp 溶融還元設備の炉体構造
JP4341131B2 (ja) * 2000-01-19 2009-10-07 Ｊｆｅスチール株式会社 微粉炭吹込みバーナー
JP3798322B2 (ja) * 2001-02-19 2006-07-19 新日本製鐵株式会社 高炉羽口からの含酸素粉体吹き込み方法
US20030090044A1 (en) * 2001-11-14 2003-05-15 Xueping Li Method and apparatus for melting metal in a shaft furnace
US20060223967A1 (en) * 2005-03-29 2006-10-05 Conner Mark D Novel polyurea isocyanates
US7837928B2 (en) * 2007-01-16 2010-11-23 U.S. Steel Canada Inc. Apparatus and method for injection of fluid hydrocarbons into a blast furnace

Also Published As

Publication number Publication date
AU2008293166B2 (en) 2011-09-08
EP2193212A4 (en) 2012-06-13
BRPI0815742B1 (pt) 2019-10-08
CN101790589A (zh) 2010-07-28
BRPI0815742A2 (pt) 2015-02-18
JP2010537153A (ja) 2010-12-02
RU2478121C2 (ru) 2013-03-27
JP5470251B2 (ja) 2014-04-16
RU2010111234A (ru) 2011-10-10
WO2009028909A2 (en) 2009-03-05
ZA201001047B (en) 2011-04-28
CA2696872A1 (en) 2009-03-05
AU2008293166A1 (en) 2009-03-05
EP2193212A2 (en) 2010-06-09
KR100948927B1 (ko) 2010-03-23
UA93635C2 (ru) 2011-02-25
EP2193212B1 (en) 2019-04-17
US20110101576A1 (en) 2011-05-05
KR20090023002A (ko) 2009-03-04
WO2009028909A3 (en) 2009-05-07

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Effective date: 20160829