ATA30097A - Schachtofen zum direkten reduzieren von oxiden und verfahren dazu - Google Patents

Schachtofen zum direkten reduzieren von oxiden und verfahren dazu

Info

Publication number
ATA30097A
ATA30097A AT30097A AT30097A ATA30097A AT A30097 A ATA30097 A AT A30097A AT 30097 A AT30097 A AT 30097A AT 30097 A AT30097 A AT 30097A AT A30097 A ATA30097 A AT A30097A
Authority
AT
Austria
Prior art keywords
method therefor
directly reducing
reducing oxides
shaft oven
oven
Prior art date
Application number
AT30097A
Other languages
English (en)
Other versions
AT408101B (de
Inventor
Oscar G Dam
Original Assignee
Internat Briquettes Holding
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 Internat Briquettes Holding filed Critical Internat Briquettes Holding
Publication of ATA30097A publication Critical patent/ATA30097A/de
Application granted granted Critical
Publication of AT408101B publication Critical patent/AT408101B/de

Links

Classifications

    • 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
    • F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering 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
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft 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
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/029—Introducing coolant gas in the shaft 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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
    • F27B1/24—Cooling arrangements
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

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 Of Iron (AREA)
  • Hydrogen, Water And Hydrids (AREA)
AT0030097A 1996-02-22 1997-02-24 Schachtofen zum direkten reduzieren von oxiden und verfahren dazu AT408101B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/603,922 US5702246A (en) 1996-02-22 1996-02-22 Shaft furnace for direct reduction of oxides

Publications (2)

Publication Number Publication Date
ATA30097A true ATA30097A (de) 2001-01-15
AT408101B AT408101B (de) 2001-09-25

Family

ID=24417458

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0030097A AT408101B (de) 1996-02-22 1997-02-24 Schachtofen zum direkten reduzieren von oxiden und verfahren dazu

Country Status (5)

Country Link
US (2) US5702246A (de)
AT (1) AT408101B (de)
AU (1) AU692727B2 (de)
DE (1) DE19707047C2 (de)
MX (1) MX9701288A (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702246A (en) * 1996-02-22 1997-12-30 Xera Technologies Ltd. Shaft furnace for direct reduction of oxides
US6039916A (en) * 1996-09-25 2000-03-21 Hylsa S.A. De C.V. Apparatus for producing direct reduced iron with a controlled amount of carbon
AT407192B (de) * 1998-08-13 2001-01-25 Voest Alpine Ind Anlagen Schachtofen
AT409971B (de) * 1998-11-19 2002-12-27 Internat Briquettes Holding Verfahren und schachtofen zur direktreduktion von oxiden
IT1302811B1 (it) * 1998-12-11 2000-09-29 Danieli & C Ohg Sp Procedimento e relativo apparato per la riduzione direttadi ossidi di ferro
ATE201011T1 (de) * 1999-02-27 2001-05-15 Zeisel Peter Dipl Ing Verfahren zum brennen von stückigem brenngut, insbesondere von kalkstein, dolomit und magnesit, und regenerativschachtofen zur durchführung des verfahrens
US6478841B1 (en) 2001-09-12 2002-11-12 Techint Technologies Inc. Integrated mini-mill for iron and steel making
WO2013013295A1 (en) * 2011-07-26 2013-01-31 Hatch Ltd. Improved process for direct reduction of iron oxide
UA111685C2 (uk) * 2012-10-01 2016-05-25 Мідрекс Текнолоджиз, Інк. Пристрій та спосіб для поліпшення однорідності шихти в шахтній печі для комбінованого риформінгу/відновлення
US10260117B2 (en) 2013-07-22 2019-04-16 Saudi Basic Industries Corporation Use of top gas in direct reduction processes
US9494364B2 (en) * 2014-02-28 2016-11-15 Process Control Corporation Dryer hopper
CN108359762B (zh) * 2018-02-23 2019-10-22 攀枝花正德环保新材料科技开发有限公司 钒钛磁铁矿还原装置以及钒钛磁铁矿加工装置
US12084730B2 (en) 2020-03-24 2024-09-10 Midrex Technologies, Inc. Methods and systems for increasing the carbon content of direct reduced iron in a reduction furnace
US20250369061A1 (en) * 2024-05-29 2025-12-04 Midrex Technologies, Inc. Direct reduction system and method to mitigate the disintegration of iron oxide during a reduction reaction

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2048112A (en) * 1933-07-31 1936-07-21 Gahl Rudolf Process for reduction of metaloxygen compounds
US3260514A (en) * 1963-03-06 1966-07-12 Onoda Cement Co Ltd Vertical kiln and a method for the preparation of calcined products
US3375099A (en) * 1964-06-30 1968-03-26 Armco Steel Corp Production of iron from pelletized iron ores
DE2364626A1 (de) * 1973-12-24 1975-06-26 Kloeckner Humboldt Deutz Ag Verfahren zur waermebehandlung von koernigem und/oder stueckigem gut, insbesondere zum brennen von kalk, dolomit, magnesit o.dgl.
US3836131A (en) * 1973-12-26 1974-09-17 Mildrex Corp Apparatus for cooling a moving bed of solid, gas permeable particles
IT1028156B (it) * 1974-01-24 1979-01-30 Kohn G Procedimento e dispositivo per il riscaldamento periferico di forni a tino
US4031183A (en) * 1975-03-17 1977-06-21 Terence Arthur Rourke Process for calcining limestone
US4178151A (en) * 1978-03-02 1979-12-11 Midrex Corporation Apparatus for monitoring the feeding of particulate materials to a packed bed furnace
US4338123A (en) * 1981-02-23 1982-07-06 Hylsa, S.A. Method and apparatus for the reduction of metal ores
US4880458A (en) * 1983-05-16 1989-11-14 Hylsa, S.A. De C.V. Start-up method for a direct reduction process without an external reformer
AT382166B (de) * 1985-05-13 1987-01-26 Voest Alpine Ag Verfahren zur direktreduktion von teilchenf¯rmigem eisenoxidhaeltigem material
US4747773A (en) * 1986-03-21 1988-05-31 Predescu Lucian A Shaft kiln utilized for lime production
US4805881A (en) * 1987-05-28 1989-02-21 Gas Research Institute Internal gas generator for heat treating furnace
US5078788A (en) * 1989-12-22 1992-01-07 C.V.G. Siderurgica Del Orinoco, C.A. Method for the direct reduction of iron
DE4041689C2 (de) * 1990-04-20 1995-11-09 Orinoco Siderurgica Verfahren und Anlage zum Herstellen von flüssigem Stahl aus Eisenoxiden
US5118288A (en) * 1991-08-06 1992-06-02 Gas Research Institute Cement advanced furnace and process
CH686459A5 (de) * 1992-03-07 1996-03-29 Maerz Ofenbau Schachtofen zum Brennen von stuckigem, mineralischem Fuellgut.
US5423676A (en) * 1992-03-30 1995-06-13 Osaka Gas Co., Ltd. Waste melting furnace
US5387274A (en) * 1993-11-15 1995-02-07 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of iron carbide
US5702246A (en) * 1996-02-22 1997-12-30 Xera Technologies Ltd. Shaft furnace for direct reduction of oxides

Also Published As

Publication number Publication date
DE19707047A1 (de) 1997-11-06
US5840097A (en) 1998-11-24
DE19707047C2 (de) 2000-04-06
AT408101B (de) 2001-09-25
AU692727B2 (en) 1998-06-11
MX9701288A (es) 1998-04-30
AU1473697A (en) 1997-10-02
US5702246A (en) 1997-12-30

Similar Documents

Publication Publication Date Title
DE59807962D1 (de) Verfahren und einrichtung zum betreiben von magnetronentladungen
DE69801854D1 (de) Antriebsanordnung und Verfahren zur Leistungssteuerung
DE69822021D1 (de) Eiserzeugungsmaschine und Steuerungsverfahren dazu
DE69709456D1 (de) Verfahren und Gerät zur Steuerung von Wechselrichter
DE59711259D1 (de) Verfahren zum drahtlosen Übertragen von Energie und Daten
DE59703453D1 (de) Verfahren zur reduktion von stickoxiden
DE69523415D1 (de) Positionsbestimmungsvorrichtung und Verfahren dazu
DE69435286D1 (de) Verfahren und zusammensetzungen zum hervorrufen von schlaf
DE69518099D1 (de) Leistungsverstärker und Verfahren dazu
DE69728402D1 (de) Verfahren und zusammensetzung für einbauen von strahlungs absorbierende mittel in polymere
DE69717754D1 (de) Synchrones Antriebsverfahren für induktive Belastung und synchrone Steuereinrichtung für H-Brückenschaltung
DE69716853D1 (de) Antriebsvorrichtung und Verfahren zur Steuerung desselben
DE69713003D1 (de) Vorrichtung und Verfahren zum Steuern von Auslassventilen
DE69736827D1 (de) Sperrschnitt-feldeffektreferenzpotentiale und herstellungsverfahren dazu
DE69520987D1 (de) Erhöhte Leerlaufdrehzahlregelung und Verfahren zum Betrieb derselben
DE69722044D1 (de) Verfahren und Gerät zum Zusammenkleben von Scheibenelementen
DE69621428D1 (de) Verfahren zum biegen und härten von flachglas und biegeform dazu
DE69815328D1 (de) Verfahren und enzymhaltige formulierung zum abbau von speiseresten
DE59607456D1 (de) Mittel und verfahren zur bekämpfung von schadpilzen
DE69500499D1 (de) Verfahren und Montagevorrichtung zum Befestigen von Komponenten in spezifischen Positionen
DE59703960D1 (de) Mittel und verfahren zur bekämpfung von schadpilzen
DE59704725D1 (de) Mittel und verfahren zur bekämpfung von schadpilzen
DE69830559D1 (de) Motorregelvorrichtung und Verfahren
DE69716290D1 (de) Schaltung und verfahren zum betreiben von lampen
DE69824570D1 (de) Verfahren zur bedienung eines drehherdofens zum reduzieren von oxiden

Legal Events

Date Code Title Description
MM01 Lapse because of not paying annual fees

Effective date: 20140115