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LU90182B1 - Method for producing directly reduced iron in a multi-tier furnace - Google Patents

Method for producing directly reduced iron in a multi-tier furnace

Info

Publication number
LU90182B1
LU90182B1 LU90182A LU90182A LU90182B1 LU 90182 B1 LU90182 B1 LU 90182B1 LU 90182 A LU90182 A LU 90182A LU 90182 A LU90182 A LU 90182A LU 90182 B1 LU90182 B1 LU 90182B1
Authority
LU
Luxembourg
Prior art keywords
reduced iron
directly reduced
tier
furnace
producing directly
Prior art date
Application number
LU90182A
Other languages
German (de)
Inventor
Thomas Hansmann
Romain Frieden
Original Assignee
Wurth Paul Sa
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 Wurth Paul Sa filed Critical Wurth Paul Sa
Priority to LU90182A priority Critical patent/LU90182B1/en
Priority to TW87105417A priority patent/TW426741B/en
Priority to ZA9811232A priority patent/ZA9811232B/en
Priority to CN98812926A priority patent/CN1128231C/en
Priority to SK867-2000A priority patent/SK8672000A3/en
Priority to DE59804094T priority patent/DE59804094D1/en
Priority to CA 2312465 priority patent/CA2312465A1/en
Priority to US09/581,158 priority patent/US6395057B1/en
Priority to AT98962432T priority patent/ATE217350T1/en
Priority to KR1020007006289A priority patent/KR20010032944A/en
Priority to JP2000524480A priority patent/JP2001526318A/en
Priority to RU2000118782A priority patent/RU2205229C2/en
Priority to EP98962432A priority patent/EP1038038B1/en
Priority to PCT/EP1998/008005 priority patent/WO1999029910A1/en
Priority to BR9815167A priority patent/BR9815167A/en
Priority to AU17601/99A priority patent/AU756767B2/en
Priority to TR200001639T priority patent/TR200001639T2/en
Application granted granted Critical
Publication of LU90182B1 publication Critical patent/LU90182B1/en

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
    • C21B13/06—Making spongy iron or liquid steel, by direct processes in multi-storied 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • F27B9/18—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path under the action of scrapers or pushers
    • F27B9/185—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path under the action of scrapers or pushers multiple hearth type furnaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Iron ore continuously supplied to a multi-tier furnace is placed onto the top tier, from which it is transferred in succession to the lower tiers. A reduction agent is placed onto the top and/or lower tiers where it reacts with the ore to form directly reduced iron. Directly reduced iron together with residues of the reduction agent are extracted from the furnace in the zone of the bottom tier.
LU90182A 1997-12-10 1997-12-10 Method for producing directly reduced iron in a multi-tier furnace LU90182B1 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
LU90182A LU90182B1 (en) 1997-12-10 1997-12-10 Method for producing directly reduced iron in a multi-tier furnace
TW87105417A TW426741B (en) 1997-12-10 1998-04-10 Process for production of directly reduced iron in a multi-stage furnace and the multi-stage furnace
ZA9811232A ZA9811232B (en) 1997-12-10 1998-12-08 Process for production of directly reduced iron in a multi-stage furnace
JP2000524480A JP2001526318A (en) 1997-12-10 1998-12-09 Method for producing direct reduced iron in multistage furnaces
DE59804094T DE59804094D1 (en) 1997-12-10 1998-12-09 METHOD FOR PRODUCING DIRECTLY REDUCED IRON IN A FLOOR STOVE
CA 2312465 CA2312465A1 (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in a layered furnace
US09/581,158 US6395057B1 (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in a layered furnace
AT98962432T ATE217350T1 (en) 1997-12-10 1998-12-09 METHOD FOR PRODUCING DIRECT REDUCED IRON IN A STACK OVEN
CN98812926A CN1128231C (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in layered furnace
SK867-2000A SK8672000A3 (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in a layered furnace
RU2000118782A RU2205229C2 (en) 1997-12-10 1998-12-09 Method for producing direct-process iron in multiple-hearth furnace
EP98962432A EP1038038B1 (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in a multiple hearth furnace
PCT/EP1998/008005 WO1999029910A1 (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in a layered furnace
BR9815167A BR9815167A (en) 1997-12-10 1998-12-09 Process for making directly reduced iron in a multistory oven
AU17601/99A AU756767B2 (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in a layered furnace
TR200001639T TR200001639T2 (en) 1997-12-10 1998-12-09 Method for the production of direct reduced iron in a multi-layered furnace.
KR1020007006289A KR20010032944A (en) 1997-12-10 1998-12-09 Method for producing directly reduced iron in a layered furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU90182A LU90182B1 (en) 1997-12-10 1997-12-10 Method for producing directly reduced iron in a multi-tier furnace

Publications (1)

Publication Number Publication Date
LU90182B1 true LU90182B1 (en) 1999-06-11

Family

ID=19731724

Family Applications (1)

Application Number Title Priority Date Filing Date
LU90182A LU90182B1 (en) 1997-12-10 1997-12-10 Method for producing directly reduced iron in a multi-tier furnace

Country Status (2)

Country Link
LU (1) LU90182B1 (en)
ZA (1) ZA9811232B (en)

Also Published As

Publication number Publication date
ZA9811232B (en) 1999-06-08

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