BR0013796A - Dispositivo para redução direta de óxidos de ferro - Google Patents

Dispositivo para redução direta de óxidos de ferro

Info

Publication number
BR0013796A
BR0013796A BR0013796-0A BR0013796A BR0013796A BR 0013796 A BR0013796 A BR 0013796A BR 0013796 A BR0013796 A BR 0013796A BR 0013796 A BR0013796 A BR 0013796A
Authority
BR
Brazil
Prior art keywords
reactor
reduction
iron oxides
zone
direct reduction
Prior art date
Application number
BR0013796-0A
Other languages
English (en)
Inventor
Milorad Pavlicevic
Alfredo Poloni
Ljuban Milic
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 BR0013796A publication Critical patent/BR0013796A/pt

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
    • 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
    • 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 peculiar to furnaces of these types

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Compounds Of Iron (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Patente de Invenção: "DISPOSITIVO PARA REDUçãO DIRETA DE óXIDOS DE FERRO". Dispositivo para a redução direta de óxidos de ferro do tipo com carga gravitacional, compreendendo um reator que define, em sua parte superior, pelo menos uma zona dentro da qual ocorre a reação de redução, meios (14,15) para introduzir a carga através de uma boca (12) do reator, meios (18,17,19) para introduzir uma corrente de gás em pelo menos uma seção do reator em correspondência com a zona de redução, meios de saída (13) do material reduzido do fundo do reator, e meios (20) para descarregar os gases de exaustão, o mencionado reator (10) incluindo pelo menos uma primeira zona superior (10a) de aquecimento, pré-redução e redução final, com uma conicidade divergindo na direção para baixo, e uma segunda zona inferior (10b) de carburização e resfriamento com uma conicidade convergindo no sentido para baixo.
BR0013796-0A 1999-09-06 2000-09-05 Dispositivo para redução direta de óxidos de ferro BR0013796A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999UD000156A IT1310769B1 (it) 1999-09-06 1999-09-06 Dispositivo per la riduzione diretta di ossidi di ferro
PCT/IB2000/001255 WO2001018258A1 (en) 1999-09-06 2000-09-05 Device for the direct reduction of iron oxides

Publications (1)

Publication Number Publication Date
BR0013796A true BR0013796A (pt) 2002-05-14

Family

ID=11423025

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0013796-0A BR0013796A (pt) 1999-09-06 2000-09-05 Dispositivo para redução direta de óxidos de ferro

Country Status (10)

Country Link
US (1) US6403022B1 (pt)
EP (1) EP1214455B1 (pt)
AT (1) ATE243765T1 (pt)
AU (1) AU6718400A (pt)
BR (1) BR0013796A (pt)
DE (1) DE60003570T2 (pt)
IT (1) IT1310769B1 (pt)
MX (1) MXPA02002414A (pt)
RU (1) RU2247154C2 (pt)
WO (1) WO2001018258A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7441794B2 (en) * 2005-09-26 2008-10-28 Red Lan Foldable stroller
DE102006062689B4 (de) * 2006-12-21 2009-01-22 Mines And Metals Engineering Gmbh (M.M.E.) Schachtofen für die direkte Reduktion von Eisenoxid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2016124B (en) 1978-03-11 1982-06-09 Hamburger Stahlwerke Gmbh Rocess and apparatus for the direct reduction of iron ores
US4725309A (en) 1986-03-17 1988-02-16 Hylsa, S.A. Method and apparatus for producing hot direct reduced iron
US5387274A (en) * 1993-11-15 1995-02-07 C.V.G. Siderurgica Del Orinoco, C.A. Process for the production of iron carbide
US5618032A (en) * 1994-05-04 1997-04-08 Midrex International B.V. Rotterdam, Zurich Branch Shaft furnace for production of iron carbide
DE19838368C1 (de) * 1998-08-24 1999-08-12 Ferrostaal Ag Verfahren und Vorrichtung zum Betreiben eines Reaktors zur Reduktion von Eisenerzen
US6146442A (en) * 1999-01-08 2000-11-14 Midrex International B.V. Rotterdam, Zurich Branch Apparatus and method for introducing gas into a shaft furnace without disturbing burden flow

Also Published As

Publication number Publication date
ATE243765T1 (de) 2003-07-15
DE60003570T2 (de) 2004-04-29
DE60003570D1 (de) 2003-07-31
IT1310769B1 (it) 2002-02-22
AU6718400A (en) 2001-04-10
RU2247154C2 (ru) 2005-02-27
WO2001018258A1 (en) 2001-03-15
EP1214455A1 (en) 2002-06-19
ITUD990156A0 (it) 1999-09-06
MXPA02002414A (es) 2005-06-20
EP1214455B1 (en) 2003-06-25
US6403022B1 (en) 2002-06-11
ITUD990156A1 (it) 2001-03-06

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/09/2000, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 16A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.