EP1411135A4 - Method for accelerating separation of granular metallic iron from slag - Google Patents

Method for accelerating separation of granular metallic iron from slag

Info

Publication number
EP1411135A4
EP1411135A4 EP02736124A EP02736124A EP1411135A4 EP 1411135 A4 EP1411135 A4 EP 1411135A4 EP 02736124 A EP02736124 A EP 02736124A EP 02736124 A EP02736124 A EP 02736124A EP 1411135 A4 EP1411135 A4 EP 1411135A4
Authority
EP
European Patent Office
Prior art keywords
slag
metallic iron
granular metallic
accelerating separation
accelerating
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.)
Withdrawn
Application number
EP02736124A
Other languages
German (de)
French (fr)
Other versions
EP1411135A1 (en
Inventor
Osamu Tsuge
Shohei Yoshida
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP1411135A1 publication Critical patent/EP1411135A1/en
Publication of EP1411135A4 publication Critical patent/EP1411135A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • 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
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C21B13/105—Rotary hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/06—Conveyors on which slag is cooled
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/068—Receptacle features where the slag is treated with a sealed or controlled environment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/072—Tanks to collect the slag, e.g. water tank

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
EP02736124A 2001-07-24 2002-06-17 Method for accelerating separation of granular metallic iron from slag Withdrawn EP1411135A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001223266A JP2003034813A (en) 2001-07-24 2001-07-24 Method for promoting separation between granular metal iron and slag
JP2001223266 2001-07-24
PCT/JP2002/005996 WO2003010342A1 (en) 2001-07-24 2002-06-17 Method for accelerating separation of granular metallic iron from slag

Publications (2)

Publication Number Publication Date
EP1411135A1 EP1411135A1 (en) 2004-04-21
EP1411135A4 true EP1411135A4 (en) 2007-08-22

Family

ID=19056630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02736124A Withdrawn EP1411135A4 (en) 2001-07-24 2002-06-17 Method for accelerating separation of granular metallic iron from slag

Country Status (10)

Country Link
US (1) US20040168550A1 (en)
EP (1) EP1411135A4 (en)
JP (1) JP2003034813A (en)
KR (1) KR100660658B1 (en)
CN (1) CN1533443A (en)
AU (1) AU2002311297B2 (en)
CA (1) CA2448383A1 (en)
RU (1) RU2312899C2 (en)
TW (1) TW533239B (en)
WO (1) WO2003010342A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445335A4 (en) * 2001-09-19 2008-06-18 Nippon Steel Corp Reduced iron mass cooling method and cooling device
JP3679084B2 (en) * 2002-10-09 2005-08-03 株式会社神戸製鋼所 Method for producing molten metal raw material and method for producing molten metal
KR100768562B1 (en) * 2006-09-15 2007-10-19 주식회사 대진디엠피 Light emitting diode device and control method thereof
US8518146B2 (en) 2009-06-29 2013-08-27 Gb Group Holdings Limited Metal reduction processes, metallurgical processes and products and apparatus
JP2013227605A (en) * 2012-04-24 2013-11-07 Kobe Steel Ltd Metallic iron-containing sintered body
KR101404440B1 (en) * 2013-10-25 2014-06-19 주식회사 세라메탈 Apparatus for recycling waste raw materials
JP6273891B2 (en) * 2014-02-20 2018-02-07 新日鐵住金株式会社 Method and apparatus for reducing metal oxide by moving hearth furnace

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06316718A (en) * 1993-03-08 1994-11-15 Kobe Steel Ltd Manufacture of reduced iron briquette
WO1996023081A1 (en) * 1995-01-23 1996-08-01 Voest-Alpine Industrieanlagenbau Gmbh Method and device for cooling hot briquetted spongy iron

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515498B1 (en) * 1990-02-13 1995-08-23 Illawarra Technology Corporation Ltd. Cotreatment of sewage and steelworks wastes
JPH10158710A (en) * 1996-12-02 1998-06-16 Sumitomo Metal Mining Co Ltd Production of reduced iron pellet
US6383251B1 (en) * 1997-08-22 2002-05-07 William Lyon Sherwood Direct iron and steelmaking
JP4159634B2 (en) * 1997-10-23 2008-10-01 株式会社神戸製鋼所 Metallic iron manufacturing method and equipment
US6413295B2 (en) * 1998-11-12 2002-07-02 Midrex International B.V. Rotterdam, Zurich Branch Iron production method of operation in a rotary hearth furnace and improved furnace apparatus
JP3009661B1 (en) * 1999-01-20 2000-02-14 株式会社神戸製鋼所 Method for producing reduced iron pellets
US6214087B1 (en) * 1999-03-19 2001-04-10 Midrex International B.V. Rotterdam, Zurich Branch Treatment of iron oxide agglomerates before introduction into furnace
PL201389B1 (en) * 2000-03-30 2009-04-30 Kobe Seiko Sho Kobe Steel Kk Method of producing metallic iron and raw material feed device
JP3735004B2 (en) * 2000-03-31 2006-01-11 住友重機械工業株式会社 Method and apparatus for recovering melt discharged from rotary kiln
TW562860B (en) * 2000-04-10 2003-11-21 Kobe Steel Ltd Method for producing reduced iron
US20020053307A1 (en) * 2000-10-31 2002-05-09 Natsuo Ishiwata Method for discharging reduced product from a moveable-hearth furnace and a discharging device
US6648942B2 (en) * 2001-01-26 2003-11-18 Midrex International B.V. Rotterdam, Zurich Branch Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus
JP4669189B2 (en) * 2001-06-18 2011-04-13 株式会社神戸製鋼所 Production of granular metallic iron
JP4266284B2 (en) * 2001-07-12 2009-05-20 株式会社神戸製鋼所 Metal iron manufacturing method
TWI282818B (en) * 2003-01-16 2007-06-21 Kobe Steel Ltd A rotary hearth furnace and iron production method thereby
JP4167101B2 (en) * 2003-03-20 2008-10-15 株式会社神戸製鋼所 Production of granular metallic iron
JP4167113B2 (en) * 2003-04-17 2008-10-15 株式会社神戸製鋼所 Method and apparatus for producing reduced iron

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06316718A (en) * 1993-03-08 1994-11-15 Kobe Steel Ltd Manufacture of reduced iron briquette
WO1996023081A1 (en) * 1995-01-23 1996-08-01 Voest-Alpine Industrieanlagenbau Gmbh Method and device for cooling hot briquetted spongy iron

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03010342A1 *

Also Published As

Publication number Publication date
CN1533443A (en) 2004-09-29
AU2002311297B2 (en) 2008-07-10
JP2003034813A (en) 2003-02-07
RU2312899C2 (en) 2007-12-20
KR100660658B1 (en) 2006-12-21
US20040168550A1 (en) 2004-09-02
EP1411135A1 (en) 2004-04-21
CA2448383A1 (en) 2003-02-06
WO2003010342A1 (en) 2003-02-06
TW533239B (en) 2003-05-21
KR20040013155A (en) 2004-02-11
RU2004105153A (en) 2005-06-10

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