EP2193212A4 - 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

Info

Publication number
EP2193212A4
EP2193212A4 EP08828480A EP08828480A EP2193212A4 EP 2193212 A4 EP2193212 A4 EP 2193212A4 EP 08828480 A EP08828480 A EP 08828480A EP 08828480 A EP08828480 A EP 08828480A EP 2193212 A4 EP2193212 A4 EP 2193212A4
Authority
EP
European Patent Office
Prior art keywords
tuyere
same
molten iron
injecting gas
manufacturing molten
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
EP08828480A
Other languages
German (de)
French (fr)
Other versions
EP2193212A2 (en
EP2193212B1 (en
Inventor
Il-Hyun Cho
Do-Seueng 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 EP2193212A2 publication Critical patent/EP2193212A2/en
Publication of EP2193212A4 publication Critical patent/EP2193212A4/en
Application granted granted Critical
Publication of EP2193212B1 publication Critical patent/EP2193212B1/en
Active 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 peculiar to 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)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture Of Iron (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Feeding And Controlling Fuel (AREA)
EP08828480.7A 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same Active EP2193212B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20070087315 2007-08-29
KR1020070136401A KR100948927B1 (en) 2007-08-29 2007-12-24 Tuyere for manufacturing molten iron and method for injecting gas using the same
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 (3)

Publication Number Publication Date
EP2193212A2 EP2193212A2 (en) 2010-06-09
EP2193212A4 true EP2193212A4 (en) 2012-06-13
EP2193212B1 EP2193212B1 (en) 2019-04-17

Family

ID=40692777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08828480.7A Active EP2193212B1 (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 (en)
EP (1) EP2193212B1 (en)
JP (1) JP5470251B2 (en)
KR (1) KR100948927B1 (en)
CN (1) CN101790589A (en)
AU (1) AU2008293166B2 (en)
BR (1) BRPI0815742B1 (en)
CA (1) CA2696872C (en)
RU (1) RU2478121C2 (en)
UA (1) UA93635C2 (en)
WO (1) WO2009028909A2 (en)
ZA (1) ZA201001047B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008050599B3 (en) * 2008-10-09 2010-07-29 Uhde Gmbh Apparatus and method for distributing primary air in coke ovens
KR20130072684A (en) * 2011-12-22 2013-07-02 주식회사 포스코 Tuyere assembly for injecting oxygen and pulverized coal into furnace and apparatus for manufacturing molten iron using the same
WO2014010660A1 (en) * 2012-07-13 2014-01-16 Ｊｆｅスチール株式会社 Blast furnace operating method and tube bundle-type lance
WO2014162965A1 (en) * 2013-04-03 2014-10-09 Ｊｆｅスチール株式会社 Blast furnace operation method and lance
JP5610109B1 (en) * 2013-04-03 2014-10-22 Ｊｆｅスチール株式会社 Blast furnace operation method
CN104697320B (en) * 2015-02-15 2016-12-07 德清县众合保温材料厂（普通合伙） Furnace cupola
JP6493744B2 (en) * 2015-03-24 2019-04-03 Ｊｆｅエンジニアリング株式会社 Waste gasification and melting apparatus and waste gasification and melting method
JP7396319B2 (en) * 2021-03-23 2023-12-12 Ｊｆｅスチール株式会社 How to blow gaseous reducing agent
CN114807480B (en) * 2022-05-31 2023-07-07 昌黎县兴国精密机件有限公司 Small cover device for hydrogen spraying tuyere

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1534788A (en) * 1975-08-14 1978-12-06 Creusot Loire Tuyeres for smelting shaft furnaces
JPS58113307A (en) * 1981-12-28 1983-07-06 Sumitomo Metal Ind Ltd Production of pig iron
US5403378A (en) * 1991-11-04 1995-04-04 Kortec Ag Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace
EP0710726A1 (en) * 1994-11-02 1996-05-08 Nkk Corporation Scrap melting method
US20030090044A1 (en) * 2001-11-14 2003-05-15 Xueping Li Method and apparatus for melting metal in a shaft furnace

Family Cites Families (26)

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Publication number Priority date Publication date Assignee Title
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 (en) * 1971-05-28 1972-07-17 Creusot Loire REFINING PROCESS FOR ALLIED STEELS CONTAINING CHROME AND MORE SPECIFICALLY STAINLESS STEELS
SU544680A1 (en) * 1973-07-05 1977-01-30 Lance for purging metal
AR207871A1 (en) * 1974-08-08 1976-11-08 Maximilianshuette Eisenwerk REACTIVE GAS INJECTION NOZZLE IN FUSION OR REFINING VESSELS FOR METALS
SU513085A1 (en) * 1975-01-03 1976-05-05 Институт черной металлургии Lance for purging metal
US3985550A (en) * 1975-01-23 1976-10-12 United States Steel Corporation Method of producing low sulfur steel
GB1564738A (en) * 1976-11-25 1980-04-10 British Steel Corp Tuyeres
JPS574137Y2 (en) * 1979-03-30 1982-01-26
SU854991A1 (en) * 1979-12-07 1981-08-25 Институт черной металлургии Method of reagent supply to blast furnace tuyere
JPS6027723B2 (en) * 1980-09-26 1985-07-01 新日本製鐵株式会社 How to protect tuyeres for blowing oxygen into molten iron
JPS5871343A (en) * 1981-10-22 1983-04-28 Kobe Steel Ltd Nozzle for blowing of gas provided in molten metal vessel
US4555266A (en) * 1981-10-05 1985-11-26 Korf Technologies, Inc. Method and apparatus for treating liquid metal in a vessel
JPS63171818A (en) * 1987-01-09 1988-07-15 Nkk Corp Tuyere for oxygen blast furnace
US4754951A (en) * 1987-08-14 1988-07-05 Union Carbide Corporation Tuyere assembly and positioning method
JPH01116022A (en) * 1987-10-29 1989-05-09 Nkk Corp Bottom blowing nozzle for melting furnace
CA2035542C (en) * 1991-02-01 1996-02-20 David Eric Hall Tuyere injector
PL170853B1 (en) * 1991-09-20 1997-01-31 Ausmelt Ltd Method of obtaining sponge or pig iron
US5263425A (en) * 1992-02-05 1993-11-23 Koenig Larry E Waste processing system door assembly
FR2702221B1 (en) * 1993-03-03 1995-04-28 Air Liquide Process for obtaining metal from the blast furnace or cupola.
KR970009084B1 (en) * 1994-12-29 1997-06-05 김만제 Apparatus for melting fine coals and method of melting the same using the apparatus
JPH09272907A (en) * 1996-04-05 1997-10-21 Nippon Steel Corp Furnace structure in smelting reduction plant
JP4341131B2 (en) * 2000-01-19 2009-10-07 Ｊｆｅスチール株式会社 Pulverized coal blowing burner
JP3798322B2 (en) * 2001-02-19 2006-07-19 新日本製鐵株式会社 Oxygen-containing powder blowing method from blast furnace tuyere
US20060223967A1 (en) * 2005-03-29 2006-10-05 Conner Mark D Novel polyurea isocyanates
CA2618411C (en) * 2007-01-16 2013-12-03 U.S. Steel Canada Inc. Apparatus and method for injection of fluid hydrocarbons into a blast furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1534788A (en) * 1975-08-14 1978-12-06 Creusot Loire Tuyeres for smelting shaft furnaces
JPS58113307A (en) * 1981-12-28 1983-07-06 Sumitomo Metal Ind Ltd Production of pig iron
US5403378A (en) * 1991-11-04 1995-04-04 Kortec Ag Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace
EP0710726A1 (en) * 1994-11-02 1996-05-08 Nkk Corporation Scrap melting method
US20030090044A1 (en) * 2001-11-14 2003-05-15 Xueping Li Method and apparatus for melting metal in a shaft furnace

Also Published As

Publication number Publication date
AU2008293166B2 (en) 2011-09-08
RU2478121C2 (en) 2013-03-27
JP2010537153A (en) 2010-12-02
BRPI0815742A2 (en) 2015-02-18
EP2193212A2 (en) 2010-06-09
AU2008293166A1 (en) 2009-03-05
US20110101576A1 (en) 2011-05-05
KR20090023002A (en) 2009-03-04
WO2009028909A3 (en) 2009-05-07
ZA201001047B (en) 2011-04-28
JP5470251B2 (en) 2014-04-16
CA2696872A1 (en) 2009-03-05
UA93635C2 (en) 2011-02-25
WO2009028909A2 (en) 2009-03-05
RU2010111234A (en) 2011-10-10
EP2193212B1 (en) 2019-04-17
CA2696872C (en) 2014-02-25
CN101790589A (en) 2010-07-28
KR100948927B1 (en) 2010-03-23
BRPI0815742B1 (en) 2019-10-08

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