WO2009028909A3 - 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
WO2009028909A3
WO2009028909A3 PCT/KR2008/005097 KR2008005097W WO2009028909A3 WO 2009028909 A3 WO2009028909 A3 WO 2009028909A3 KR 2008005097 W KR2008005097 W KR 2008005097W WO 2009028909 A3 WO2009028909 A3 WO 2009028909A3
Authority
WO
WIPO (PCT)
Prior art keywords
tuyere
molten iron
same
manufacturing molten
injecting gas
Prior art date
Application number
PCT/KR2008/005097
Other languages
French (fr)
Other versions
WO2009028909A2 (en
Inventor
Il-Hyun Cho
Do-Seueng Kim
Jin-Chan Bae
Original Assignee
Posco
Il-Hyun Cho
Do-Seueng Kim
Jin-Chan Bae
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, Il-Hyun Cho, Do-Seueng Kim, Jin-Chan Bae filed Critical Posco
Priority to CA2696872A priority Critical patent/CA2696872C/en
Priority to US12/674,077 priority patent/US20110101576A1/en
Priority to RU2010111234/02A priority patent/RU2478121C2/en
Priority to CN200880104856A priority patent/CN101790589A/en
Priority to JP2010522815A priority patent/JP5470251B2/en
Priority to AU2008293166A priority patent/AU2008293166B2/en
Priority to BRPI0815742-1A priority patent/BRPI0815742B1/en
Priority to EP08828480.7A priority patent/EP2193212B1/en
Publication of WO2009028909A2 publication Critical patent/WO2009028909A2/en
Publication of WO2009028909A3 publication Critical patent/WO2009028909A3/en
Priority to ZA2010/01047A priority patent/ZA201001047B/en

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)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Manufacture Of Iron (AREA)

Abstract

A tuyere for manufacturing molten iron is provided. The tuyere includes i) an oxygen injection opening that is configured to inject oxygen therethrough, and ii) a sealing gas injection opening that is located to be spaced apart from the oxygen injection opening and is configured to inject a sealing gas surrounding the oxygen.
PCT/KR2008/005097 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same WO2009028909A2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CA2696872A CA2696872C (en) 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same
US12/674,077 US20110101576A1 (en) 2007-08-29 2008-08-29 Tuyere for Manufacturing Molten Iron and Method for Injecting Gas Using the Same
RU2010111234/02A RU2478121C2 (en) 2007-08-29 2008-08-29 Cast iron tuyere and method of tuyere gas injection
CN200880104856A CN101790589A (en) 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same
JP2010522815A JP5470251B2 (en) 2007-08-29 2008-08-29 Feather for producing molten iron and gas injection method using the same
AU2008293166A AU2008293166B2 (en) 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same
BRPI0815742-1A BRPI0815742B1 (en) 2007-08-29 2008-08-29 GARLIC AND GAS INJECTION METHOD
EP08828480.7A EP2193212B1 (en) 2007-08-29 2008-08-29 Tuyere for manufacturing molten iron and method for injecting gas using the same
ZA2010/01047A ZA201001047B (en) 2007-08-29 2010-02-12 Tuyere for manufacturing molten iron and method for injecting gas using the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2007-0087315 2007-08-29
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
KR10-2007-0136401 2007-12-24

Publications (2)

Publication Number Publication Date
WO2009028909A2 WO2009028909A2 (en) 2009-03-05
WO2009028909A3 true WO2009028909A3 (en) 2009-05-07

Family

ID=40692777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/005097 WO2009028909A2 (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
IN2015DN00025A (en) * 2012-07-13 2015-05-22 Jfe Steel Corp
AU2014250568B2 (en) * 2013-04-03 2016-09-15 Jfe Steel Corporation Blast furnace operation method and lance
WO2014162964A1 (en) * 2013-04-03 2014-10-09 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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417723A (en) * 1981-10-22 1983-11-29 Kabushiki Kaisha Kobe Seiko Sho Tuyere for blowing gases into molten metal bath container
US4555266A (en) * 1981-10-05 1985-11-26 Korf Technologies, Inc. Method and apparatus for treating liquid metal in a vessel
US5522916A (en) * 1993-03-03 1996-06-04 L'air Liquids, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and apparatus for injecting liquid oxygen
JPH09272907A (en) * 1996-04-05 1997-10-21 Nippon Steel Corp Furnace structure in smelting reduction plant

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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 (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
DE2633061C3 (en) * 1975-08-14 1980-02-14 Creusot-Loire, Paris Blowing process for furnaces with a melting shaft, in particular blast furnaces and blow molds for carrying out the process
GB1564738A (en) * 1976-11-25 1980-04-10 British Steel Corp Tuyeres
JPS574137Y2 (en) * 1979-03-30 1982-01-26
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US4754951A (en) * 1987-08-14 1988-07-05 Union Carbide Corporation Tuyere assembly and positioning method
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DE4136274A1 (en) * 1991-11-04 1993-05-06 Kortec Ag, Zug, Ch METHOD AND DEVICE FOR PROTECTING A BLOWING DEVICE ARRANGED IN A HOT WIND LINE OF A BLAST FURNACE
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4555266A (en) * 1981-10-05 1985-11-26 Korf Technologies, Inc. Method and apparatus for treating liquid metal in a vessel
US4417723A (en) * 1981-10-22 1983-11-29 Kabushiki Kaisha Kobe Seiko Sho Tuyere for blowing gases into molten metal bath container
US5522916A (en) * 1993-03-03 1996-06-04 L'air Liquids, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and apparatus for injecting liquid oxygen
JPH09272907A (en) * 1996-04-05 1997-10-21 Nippon Steel Corp Furnace structure in smelting reduction plant

Non-Patent Citations (1)

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Title
See also references of EP2193212A4 *

Also Published As

Publication number Publication date
US20110101576A1 (en) 2011-05-05
EP2193212B1 (en) 2019-04-17
CN101790589A (en) 2010-07-28
AU2008293166B2 (en) 2011-09-08
KR20090023002A (en) 2009-03-04
EP2193212A2 (en) 2010-06-09
EP2193212A4 (en) 2012-06-13
JP5470251B2 (en) 2014-04-16
ZA201001047B (en) 2011-04-28
RU2010111234A (en) 2011-10-10
AU2008293166A1 (en) 2009-03-05
KR100948927B1 (en) 2010-03-23
BRPI0815742A2 (en) 2015-02-18
UA93635C2 (en) 2011-02-25
CA2696872A1 (en) 2009-03-05
BRPI0815742B1 (en) 2019-10-08
JP2010537153A (en) 2010-12-02
WO2009028909A2 (en) 2009-03-05
RU2478121C2 (en) 2013-03-27
CA2696872C (en) 2014-02-25

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