BR0111363A - Iron ore reduction process and installation for its implementation - Google Patents

Iron ore reduction process and installation for its implementation

Info

Publication number
BR0111363A
BR0111363A BR0111363-1A BR0111363A BR0111363A BR 0111363 A BR0111363 A BR 0111363A BR 0111363 A BR0111363 A BR 0111363A BR 0111363 A BR0111363 A BR 0111363A
Authority
BR
Brazil
Prior art keywords
iron ore
feed
gases
grate
grid
Prior art date
Application number
BR0111363-1A
Other languages
Portuguese (pt)
Inventor
Bernard Van Derheyden
Rene Munnix
Original Assignee
Ct De Rech S Metallurg A S B L
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 Ct De Rech S Metallurg A S B L filed Critical Ct De Rech S Metallurg A S B L
Publication of BR0111363A publication Critical patent/BR0111363A/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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C21B13/0053—On a massing grate
    • 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)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

"PROCESSO DE REDUçãO DE MINéRIO DE FERRO E INSTALAçãO PARA SUA IMPLEMENTAçãO". A invenção está relacionada com um método para redução de ferro para produzir esponja o qual consiste em: depositar uma alimentação de minério de ferro sobre uma grelha e mover a grelha de modo a fazer a alimentação passar em pelo menos três zonas diferentes; alimentar gases, chamados gases de admissão dentro de uma ou várias zonas, incluindo um agente redutor carbonáceo gasoso quente, e forçar os citados gases de admissão através do minério localizado sobre a grelha; e capturar os gases resultantes da citada passagem forçada, chamados gases de saída. A passagem dos gases de admissão traz o minério a uma temperatura variando entre 850<198>C e 1300<198>C; manter a citada alimentação na citada temperatura até que uma taxa de metalização de minério de ferro variando entre 60% e 100% seja obtida. A alimentação depositada sobre a grelha consiste de quer minério de ferro calibrado entre 5 mm e 40 mm, ou pellets de minério de ferro tendo um diâmetro variando entre 5 mm e 20 mm, ou grânulos de minério de ferro de tamanho entre 2 mm e 10 mm, e a espessura da camada depositada varia entre 150 mm e 600 mm. O fluxo de gases de admissão através da alimentação depositada sobre a grelha, é dirigido de cima para baixo e geralmente obtido gerando por baixo da grelha uma sub-pressão variando entre 500 e 2000 mm de coluna de água. O fluxo forçado de gases de admissão através da alimentação em pelo menos uma zona de processamento consiste pelo menos parcialmente do gás de saída capturado sob a grelha, o citado gás de saída capturado sob a grelha tendo sido pelo menos submetido a um tratamento tal como depuração, dessulfuração, secagem, extração de poeira, reaquecimento e remoção de carbonato."IRON ORE REDUCTION AND INSTALLATION PROCESS FOR IMPLEMENTATION". The invention relates to a method of reducing iron to produce sponge which consists of: depositing an iron ore feed on a grid and moving the grid to pass the feed in at least three different zones; feeding gases, called inlet gases within one or more zones, including a hot gaseous carbonaceous reducing agent, and forcing said inlet gases through ore located on the grid; and capturing the gases resulting from said forced passage, called outlet gases. The passage of the inlet gases brings the ore to a temperature ranging from 850 <198> C to 1300 <198> C; maintain said feed at said temperature until an iron ore metallization rate ranging from 60% to 100% is obtained. The feed deposited on the grid consists of either iron ore sized between 5 mm and 40 mm, or iron ore pellets having a diameter ranging between 5 mm and 20 mm, or iron ore granules sized between 2 mm and 10 mm. mm, and the thickness of the deposited layer ranges from 150 mm to 600 mm. The flow of inlet gases through the feed deposited on the grate is directed from top to bottom and generally obtained by generating under the grate a sub-pressure ranging from 500 to 2000 mm of water column. The forced flow of inlet gases through the feed in at least one processing zone consists at least partially of the outlet gas captured under the grate, said outlet gas captured under the grate having at least undergone treatment such as purification. , desulphurization, drying, dust extraction, reheating and carbonate removal.

BR0111363-1A 2000-05-22 2001-05-17 Iron ore reduction process and installation for its implementation BR0111363A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2000/0340A BE1013448A3 (en) 2000-05-22 2000-05-22 Ore reduction process of iron and installation for the implementation thereof.
PCT/BE2001/000088 WO2001090424A1 (en) 2000-05-22 2001-05-17 Iron ore reduction method and installation therefor

Publications (1)

Publication Number Publication Date
BR0111363A true BR0111363A (en) 2003-05-20

Family

ID=3896537

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0111363-1A BR0111363A (en) 2000-05-22 2001-05-17 Iron ore reduction process and installation for its implementation

Country Status (9)

Country Link
US (1) US20030110891A1 (en)
EP (1) EP1287168A1 (en)
JP (1) JP2003534453A (en)
KR (1) KR20020091264A (en)
AU (1) AU2001259967A1 (en)
BE (1) BE1013448A3 (en)
BR (1) BR0111363A (en)
CA (1) CA2407401A1 (en)
WO (1) WO2001090424A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8287621B2 (en) 2010-12-22 2012-10-16 Nu-Iron Technology, Llc Use of bimodal carbon distribution in compacts for producing metallic iron nodules
JP5789883B2 (en) * 2011-12-05 2015-10-07 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Partially reduced iron manufacturing method and partially reduced iron manufacturing apparatus
EP2905345A1 (en) * 2014-02-10 2015-08-12 Primetals Technologies Austria GmbH Pneumatic ore charging
KR101712829B1 (en) * 2014-09-24 2017-03-08 주식회사 포스코 Burning furnace and method of manufacturing partially-reduced iron using the same
CN113091453B (en) * 2020-01-09 2022-03-04 中南大学 Energy-carrying composite gas medium sintering cooperative emission reduction method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR704106A (en) * 1929-10-14 1931-05-13 Gutehoffnungshuette Oberhausen Method and device for the manufacture of metal sponges
FR1239066A (en) * 1958-10-29 1960-08-19 Huettenwerk Oberhausen Ag Process for the treatment of metal oxides, in particular iron oxide, finely granular
US3264091A (en) * 1963-06-20 1966-08-02 Mcdowell Wellman Eng Co Process for producing highly metallized pellets
DE1194884B (en) * 1964-04-30 1965-06-16 Beteiligungs & Patentverw Gmbh Process for the pre-reduction of sinter and pellets
DE1962417B1 (en) * 1969-12-12 1971-12-30 Huettenwerk Oberhausen Ag Process and device for pre-reduction of iron ores
FR2181558A1 (en) * 1972-04-28 1973-12-07 Creusot Loire Sponge iron prodn - by hydrogen redn of iron ore
FR2197071A2 (en) * 1972-08-24 1974-03-22 Creusot Loire Sponge iron prodn - by hydrogen redn of iron ore
FR2278777A1 (en) * 1974-05-10 1976-02-13 Creusot Loire DIRECT MINERAL REDUCTION PROCESS ON A CONTINUOUS GRID
DE3421878A1 (en) * 1984-06-13 1985-12-19 Klöckner-Humboldt-Deutz AG, 5000 Köln Process and plant for the continuous production of pig iron

Also Published As

Publication number Publication date
BE1013448A3 (en) 2002-02-05
JP2003534453A (en) 2003-11-18
US20030110891A1 (en) 2003-06-19
CA2407401A1 (en) 2001-11-29
KR20020091264A (en) 2002-12-05
EP1287168A1 (en) 2003-03-05
AU2001259967A1 (en) 2001-12-03
WO2001090424A1 (en) 2001-11-29

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]