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WO2009082122A3 - Tuyere assembly - Google Patents

Tuyere assembly Download PDF

Info

Publication number
WO2009082122A3
WO2009082122A3 PCT/KR2008/007478 KR2008007478W WO2009082122A3 WO 2009082122 A3 WO2009082122 A3 WO 2009082122A3 KR 2008007478 W KR2008007478 W KR 2008007478W WO 2009082122 A3 WO2009082122 A3 WO 2009082122A3
Authority
WO
WIPO (PCT)
Prior art keywords
tuyere
melter
gasifier
injection lines
tuyere assembly
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.)
Ceased
Application number
PCT/KR2008/007478
Other languages
French (fr)
Other versions
WO2009082122A2 (en
Inventor
Eung-Soo Choi
Weon-Seog Seo
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
Priority to CN2008801224515A priority Critical patent/CN101910419B/en
Priority to BRPI0821527A priority patent/BRPI0821527B8/en
Publication of WO2009082122A2 publication Critical patent/WO2009082122A2/en
Publication of WO2009082122A3 publication Critical patent/WO2009082122A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • 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
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • 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
    • C21B7/00—Blast furnaces
    • 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

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)
  • Gasification And Melting Of Waste (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

A tuyere assembly that is capable of improving the combustion rate of an auxiliary fuel is provided. The tuyere assembly that is installed at a melter-gasifier for forming melted iron includes a tuyere where a gas passage used for injecting an oxygen-containing gas into the melter-gasifier and a pair of fuel injection lines spaced apart from each other. The injection lines are spaced apart from the gas passage to pass through the tuyere. The injection lines inject an auxiliary fuel into the melter-gasifier.
PCT/KR2008/007478 2007-12-24 2008-12-17 Tuyere assembly Ceased WO2009082122A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008801224515A CN101910419B (en) 2007-12-24 2008-12-17 Tuyere assembly
BRPI0821527A BRPI0821527B8 (en) 2007-12-24 2008-12-17 mortar assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070135976A KR100930677B1 (en) 2007-12-24 2007-12-24 Tuyere assembly
KR10-2007-0135976 2007-12-24

Publications (2)

Publication Number Publication Date
WO2009082122A2 WO2009082122A2 (en) 2009-07-02
WO2009082122A3 true WO2009082122A3 (en) 2009-09-17

Family

ID=40801665

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/007478 Ceased WO2009082122A2 (en) 2007-12-24 2008-12-17 Tuyere assembly

Country Status (4)

Country Link
KR (1) KR100930677B1 (en)
CN (1) CN101910419B (en)
BR (1) BRPI0821527B8 (en)
WO (1) WO2009082122A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU91543B1 (en) * 2009-03-24 2010-09-27 Wurth Paul Sa Tuyere stock arrangement for a blast furnace and method for operating a blast furnace
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
US9309578B2 (en) 2012-07-13 2016-04-12 Jfe Steel Corporation Blast furnace operating method and tube bundle-type lance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62263906A (en) * 1986-05-12 1987-11-16 Sumitomo Metal Ind Ltd Pulverized coal injection method from blast furnace tuyeres
JPH0356610A (en) * 1989-07-24 1991-03-12 Kawasaki Steel Corp Method for injecting fine powdered coal into blast furnace
JPH05125411A (en) * 1991-11-05 1993-05-21 Kawasaki Steel Corp Vertical furnace tuyere powder injection method and device
KR20020032674A (en) * 2000-10-26 2002-05-04 이구택 tuyere for injecting fine ore and liquid fuel into meltergasifier
KR20030005779A (en) * 2001-07-10 2003-01-23 주식회사 포스코 A pulverized solid fuel injecting apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320987A1 (en) * 1975-08-13 1977-03-11 Sprunck Emile TOP FURNACE TUBE
EP1580283A1 (en) * 2004-03-26 2005-09-28 Paul Wurth S.A. Method for protecting a tuyere assembly and a refractory lining of a furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62263906A (en) * 1986-05-12 1987-11-16 Sumitomo Metal Ind Ltd Pulverized coal injection method from blast furnace tuyeres
JPH0356610A (en) * 1989-07-24 1991-03-12 Kawasaki Steel Corp Method for injecting fine powdered coal into blast furnace
JPH05125411A (en) * 1991-11-05 1993-05-21 Kawasaki Steel Corp Vertical furnace tuyere powder injection method and device
KR20020032674A (en) * 2000-10-26 2002-05-04 이구택 tuyere for injecting fine ore and liquid fuel into meltergasifier
KR20030005779A (en) * 2001-07-10 2003-01-23 주식회사 포스코 A pulverized solid fuel injecting apparatus

Also Published As

Publication number Publication date
KR100930677B1 (en) 2009-12-09
CN101910419A (en) 2010-12-08
CN101910419B (en) 2012-09-05
BRPI0821527B1 (en) 2017-04-11
KR20090068394A (en) 2009-06-29
WO2009082122A2 (en) 2009-07-02
BRPI0821527A2 (en) 2015-06-16
BRPI0821527B8 (en) 2017-11-07

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