[go: up one dir, main page]

MX9701288A - Horno de cuba para la reduccion directa de oxidos. - Google Patents

Horno de cuba para la reduccion directa de oxidos.

Info

Publication number
MX9701288A
MX9701288A MX9701288A MX9701288A MX9701288A MX 9701288 A MX9701288 A MX 9701288A MX 9701288 A MX9701288 A MX 9701288A MX 9701288 A MX9701288 A MX 9701288A MX 9701288 A MX9701288 A MX 9701288A
Authority
MX
Mexico
Prior art keywords
zone
oxides
shaft furnace
reducing zone
direct reduction
Prior art date
Application number
MX9701288A
Other languages
English (en)
Other versions
MXPA97001288A (es
Inventor
Oscar G Dam
Original Assignee
Xera Technologies 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 Xera Technologies Ltd filed Critical Xera Technologies Ltd
Publication of MXPA97001288A publication Critical patent/MXPA97001288A/es
Publication of MX9701288A publication Critical patent/MX9701288A/es

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)

Abstract

Un horno de cuba para la reduccion de oxidos incluye un miembro de eje que tiene una entrada de oxido y que define una zona de pre-calentamiento y pre-reduccion, hacia abajo de la entrada de oxido, una zona de reduccion hacia abajo de la zona de pre-calentamiento y pre-reduccion, una zona de transicion hacia abajo de la zona de reduccion y una zona de descarga hacia abajo de la zona de transicion; y una zona de reformacion del gas asociada con el miembro de eje para formar un gas que contiene metano en un gas reformado y para la introduccion del gas reformado dentro de la zona de reduccion por lo que los oxidos en la zona de reduccion son reducidos por el gas reformado.
MX9701288A 1996-02-22 1997-02-20 Horno de cuba para la reduccion directa de oxidos. MX9701288A (es)

Applications Claiming Priority (2)

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
US08603922 1996-02-22

Publications (2)

Publication Number Publication Date
MXPA97001288A MXPA97001288A (es) 1998-04-01
MX9701288A true MX9701288A (es) 1998-04-30

Family

ID=24417458

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9701288A MX9701288A (es) 1996-02-22 1997-02-20 Horno de cuba para la reduccion directa de oxidos.

Country Status (5)

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

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
DK1038851T3 (da) * 1999-02-27 2001-08-27 Zeisel Peter Dipl Ing Fremgangsmåde til brænding af stykkeformet brændingsråstof, navnlig af kalksten, dolomit og magnesit, og regenerativskaktovn til gennemførelse af fremgangsmåden
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
CN105492376A (zh) 2013-07-22 2016-04-13 沙特基础工业公司 炉顶气在直接还原工艺中的使用
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
AT408101B (de) 2001-09-25
DE19707047A1 (de) 1997-11-06
AU1473697A (en) 1997-10-02
AU692727B2 (en) 1998-06-11
US5702246A (en) 1997-12-30
DE19707047C2 (de) 2000-04-06
ATA30097A (de) 2001-01-15
US5840097A (en) 1998-11-24

Similar Documents

Publication Publication Date Title
MX9701288A (es) Horno de cuba para la reduccion directa de oxidos.
AU3158997A (en) Process for producing puzzolanes, synthetic blast furnace slags, belite or alite clinkers as well as pig iron alloys from oxidic slags and arrangement for carrying out said process
ES2099026B1 (es) Procedimiento para la produccion de carburo de hierro.
ZA96246B (en) Catalytic composition based on cerium oxide and on manganese iron or praseodymium oxide process for its preparation and its use automobile afterburning catalysis
CA2184008A1 (en) Fluidized Bed Type Reduction Apparatus for Iron Ores and Method for Reducing Iron Ores Using the Apparatus
AU7452794A (en) Process for making steel and hydraulically active binders
CA2251548A1 (en) Hot oxygen blast furnace injection system
CA2240706A1 (en) Production of direct reduced iron with reduced fuel consumption and emission of carbon monoxide
AU1763997A (en) Process for melting of metal materials in a shaft furnace
AU2796395A (en) Process for melting a metal charge in a rotary kiln, and rotary kiln for implementing such process
MY115029A (en) Method for an improved energy input into a scrap bulk
ZA986036B (en) Method for controlling a smelting reduction process
PL343489A1 (en) Method for reducing metal oxides and device for implementing said method
TW200503312A (en) Fuel cell assembly
AUPQ297699A0 (en) Solid state reduction of oxides
MY118458A (en) Method for reforming reducing gas in a fluidized bed process for reduction of ore
TW348186B (en) Method and device for injection of reducing agents into a shaft furnace
MY123031A (en) Shaft furnace
AU8207198A (en) Method and device for extracting iron by direct reduction
Zhou et al. Granular coal injection technology for blast furnace
Greis Prereduced products and their utilization in Europe
AU6718400A (en) Device for the direct reduction of iron oxides
CA2224716A1 (en) Method for an improved energy input into a scrap bulk
AU3043200A (en) Method for optimising the operation of a tank furnace
AU2001291880A1 (en) Method for cooling a blast furnace with cooling plates