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BR9914460A - Process for making directly reduced metal in a shelf oven - Google Patents

Process for making directly reduced metal in a shelf oven

Info

Publication number
BR9914460A
BR9914460A BR9914460-3A BR9914460A BR9914460A BR 9914460 A BR9914460 A BR 9914460A BR 9914460 A BR9914460 A BR 9914460A BR 9914460 A BR9914460 A BR 9914460A
Authority
BR
Brazil
Prior art keywords
directly reduced
oven
reduced metal
shelf
making directly
Prior art date
Application number
BR9914460-3A
Other languages
Portuguese (pt)
Inventor
Jean-Luc Roth
Thomas Hansmann
Romain Frieden
Marc Solvi
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
Publication of BR9914460A publication Critical patent/BR9914460A/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
    • C21B13/10—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
    • 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
    • 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

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)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Details (AREA)

Abstract

"PROCESSO PARA FABRICAR METAL DIRETAMENTE REDUZIDO EM UM FORNO DE PRATELEIRAS", em que são introduzidos óxidos metálicos e redutores no forno de prateleiras, sendo produzido o calor de processo necessário para reduzir os óxidos metálicos mediante o aquecimento indireto de cada uma das prateleiras do forno."PROCESS FOR MANUFACTURING METAL DIRECTLY REDUCED IN A SHELF OVEN", in which metal oxides and reducers are introduced into the shelf oven, producing the process heat necessary to reduce metal oxides by indirect heating of each of the oven shelves .

BR9914460-3A 1998-09-23 1999-08-30 Process for making directly reduced metal in a shelf oven BR9914460A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU90291A LU90291B1 (en) 1998-09-23 1998-09-23 Process for producing directly reduced metal in a deck oven
PCT/EP1999/006381 WO2000017404A1 (en) 1998-09-23 1999-08-30 Method for producing directly reduced metal in a multi-tiered furnace

Publications (1)

Publication Number Publication Date
BR9914460A true BR9914460A (en) 2001-05-22

Family

ID=19731769

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9914460-3A BR9914460A (en) 1998-09-23 1999-08-30 Process for making directly reduced metal in a shelf oven

Country Status (15)

Country Link
EP (1) EP1115890A1 (en)
JP (1) JP2002526652A (en)
KR (1) KR20010075318A (en)
CN (1) CN1319143A (en)
AU (1) AU6079499A (en)
BR (1) BR9914460A (en)
CA (1) CA2343212A1 (en)
CZ (1) CZ20011042A3 (en)
LU (1) LU90291B1 (en)
PL (1) PL346835A1 (en)
SK (1) SK3942001A3 (en)
TR (1) TR200101480T2 (en)
TW (1) TW459049B (en)
WO (1) WO2000017404A1 (en)
ZA (1) ZA200102128B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003289518B2 (en) 2002-12-23 2007-09-06 Posco An apparatus for manufacturing moltens irons to improve operation of fluidized bed type reduction apparatus and manufacturing method using the same
EP1905853A1 (en) * 2006-09-29 2008-04-02 Paul Wurth S.A. Heat treatment method of metal-containing waste materials contaminated with organics and apparatus therefor
LU91312B1 (en) * 2007-02-16 2008-08-18 Wurth Paul Sa Multiple hearth furnace
JP5601138B2 (en) * 2010-10-14 2014-10-08 新日鐵住金株式会社 Heating method for agglomerates
DE102016120833A1 (en) * 2016-11-02 2018-05-03 Thyssenkrupp Ag Multi-level oven and method for operating a multi-level oven

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE552837C (en) * 1927-06-21 1932-06-18 Paul Gredt Device and method for shredding oolite grains obtained from minette
FR717429A (en) * 1930-12-03 1932-01-08 Trent Process Corp Direct reduction process for iron ore
US2089782A (en) * 1934-12-14 1937-08-10 Industrimetoder Ab Process of producing sponge iron
DE1225673B (en) * 1959-07-23 1966-09-29 Kloeckner Humboldt Deutz Ag Process for the dry reduction of iron ore
US3650830A (en) * 1969-06-30 1972-03-21 Nichols Eng & Res Corp Recovery system
DE2134977A1 (en) * 1971-07-13 1973-01-25 Atsukawa Masami Solid state iron prodn from powder or granule ore - by high intensity alternating current resistance heating
FR2250422A7 (en) * 1973-11-07 1975-05-30 Leur Ryan Indirect heater for basalt dust - has superimposed heater plates with spoked wheels revolving above them
GB2140141B (en) * 1983-05-20 1986-10-01 British Petroleum Co Plc Process and vacuum sublimation furnace for treatment of ores
DE3734892A1 (en) * 1987-10-15 1989-04-27 Egon Evertz Process for dressing metallurgical dusts
LU87890A1 (en) * 1991-02-20 1992-11-16 Arbed METHOD AND DEVICE FOR WINNING METALS FROM INDUSTRIAL RESIDUES

Also Published As

Publication number Publication date
TW459049B (en) 2001-10-11
JP2002526652A (en) 2002-08-20
EP1115890A1 (en) 2001-07-18
CN1319143A (en) 2001-10-24
PL346835A1 (en) 2002-02-25
KR20010075318A (en) 2001-08-09
LU90291B1 (en) 2000-03-24
CZ20011042A3 (en) 2001-10-17
AU6079499A (en) 2000-04-10
WO2000017404A1 (en) 2000-03-30
ZA200102128B (en) 2002-06-14
TR200101480T2 (en) 2001-09-21
SK3942001A3 (en) 2001-12-03
CA2343212A1 (en) 2000-03-30

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]