AR021610A1 - METHOD AND APPARATUS FOR DIRECT REDUCTION OF MINERAL IRON WITH AN OPTIMIZED INJECTION OF REDUCTION GAS - Google Patents

METHOD AND APPARATUS FOR DIRECT REDUCTION OF MINERAL IRON WITH AN OPTIMIZED INJECTION OF REDUCTION GAS

Info

Publication number
AR021610A1
AR021610A1 ARP990106285A ARP990106285A AR021610A1 AR 021610 A1 AR021610 A1 AR 021610A1 AR P990106285 A ARP990106285 A AR P990106285A AR P990106285 A ARP990106285 A AR P990106285A AR 021610 A1 AR021610 A1 AR 021610A1
Authority
AR
Argentina
Prior art keywords
oven
furnace
reduction
mineral
iron
Prior art date
Application number
ARP990106285A
Other languages
Spanish (es)
Original Assignee
Danieli Off Mecc
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 Danieli Off Mecc filed Critical Danieli Off Mecc
Publication of AR021610A1 publication Critical patent/AR021610A1/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
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in 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
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/006—Equipment for treating dispersed material falling under gravity with ascending gases
    • 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)
  • Dispersion Chemistry (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

Método para la reduccion directa de hierro mineral dentro de un horno de reduccion vertical (10) del tipo con una carga gravitacional, en donde el gas dereduccion fluye contra el material introducido dentro del horno, que comprende las etapas de: elhierro mineral es alimentado dentro de dicho horno (10) desdearriba, se inyecta una mezcla de gas a alta temperatura y se remueve el material reducido de dicho horno (10), dicha mezcla de gas es introducida dentro delhorno (10) por medio de primerosmedios de inyeccion (20a) ubicados sobre la porcion exterior de dicho horno (10) y al mismo tiempo dicha mezcla de gas esintroducida dentro de dicho horno (10) por medio de segundos medios de inyeccion (20b, 20c y 25) ubicados dentro de dicho horno( 10). Un aparato para lareduccion directa de hierro mineral que comprende un horno de reduccion vertical (10) del tipo con carga gravitacional, para lograr en el mismo reacciones parareducir el hierro mineral, medios (11) para alimentar el hierromine ral desde arriba dentro de dicho horno (10), medios (20) para inyectar una mezcla de gas aalta temperatura dentro de dicho horno (10) y medios (15) para remover el mineral reducido desde la parte inferior de dicho horno (10), dichos mediosdeinyeccio n (20) comprenden primeros medios de inyeccion (20a) dispuestos sobre la circunferencia de la pared exterior de dicho horno (10) y segundos medios deinyeccion (20b, 20c y 25) ubicados dentro de dicho horno (10).Method for direct reduction of mineral iron inside a vertical reduction furnace (10) of the type with a gravitational load, where the reducing gas flows against the material introduced into the oven, which comprises the steps of: the mineral iron is fed into from said furnace (10) from above, a high temperature gas mixture is injected and the reduced material of said furnace (10) is removed, said gas mixture is introduced into the oven (10) by means of first injection means (20a) located on the outer portion of said oven (10) and at the same time said gas mixture is introduced into said oven (10) by means of second injection means (20b, 20c and 25) located inside said oven (10). An apparatus for direct reduction of mineral iron comprising a vertical reduction furnace (10) of the type with gravitational load, to achieve in the same reactions to reduce the mineral iron, means (11) for feeding the iron hieromine from above into said furnace (10), means (20) for injecting a high temperature gas mixture into said furnace (10) and means (15) for removing the reduced mineral from the bottom of said furnace (10), said injection means (20) they comprise first injection means (20a) disposed on the circumference of the outer wall of said oven (10) and second injection means (20b, 20c and 25) located inside said oven (10).

ARP990106285A 1998-12-11 1999-12-09 METHOD AND APPARATUS FOR DIRECT REDUCTION OF MINERAL IRON WITH AN OPTIMIZED INJECTION OF REDUCTION GAS AR021610A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1998UD000216A IT1302815B1 (en) 1998-12-11 1998-12-11 PROCEDURE AND APPARATUS FOR DIRECT REDUCTION OF MINERAL DIFERRO WITH OPTIMIZED INJECTION OF REDUCING GAS

Publications (1)

Publication Number Publication Date
AR021610A1 true AR021610A1 (en) 2002-07-31

Family

ID=11422799

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990106285A AR021610A1 (en) 1998-12-11 1999-12-09 METHOD AND APPARATUS FOR DIRECT REDUCTION OF MINERAL IRON WITH AN OPTIMIZED INJECTION OF REDUCTION GAS

Country Status (4)

Country Link
AR (1) AR021610A1 (en)
AU (1) AU1292200A (en)
IT (1) IT1302815B1 (en)
WO (1) WO2000036159A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2386464T3 (en) * 2006-12-11 2012-08-21 Mines And Metals Engineering Gmbh (M.M.E.) Blast furnace
AT505490B1 (en) 2007-06-28 2009-12-15 Siemens Vai Metals Tech Gmbh METHOD AND DEVICE FOR PRODUCING IRON SPONGE
EP2653568A1 (en) * 2012-04-18 2013-10-23 Siemens VAI Metals Technologies GmbH Device and method for gassing areas in a reduction reactor shaft
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118017A (en) * 1976-01-02 1978-10-03 United States Steel Corporation Shaft furnace design
GB2016124B (en) * 1978-03-11 1982-06-09 Hamburger Stahlwerke Gmbh Rocess and apparatus for the direct reduction of iron ores
US4270739A (en) * 1979-10-22 1981-06-02 Midrex Corporation Apparatus for direct reduction of iron using high sulfur gas
JPH05302107A (en) * 1992-04-27 1993-11-16 Nkk Corp Method for activating furnace core in blast furnace
US5387274A (en) * 1993-11-15 1995-02-07 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of iron carbide

Also Published As

Publication number Publication date
WO2000036159A1 (en) 2000-06-22
ITUD980216A1 (en) 2000-06-11
IT1302815B1 (en) 2000-09-29
AU1292200A (en) 2000-07-03

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