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WO2003002775A3 - Procede permettant de traiter les poussieres de gueulard de fours electriques de fonte de fer d'acieries - Google Patents

Procede permettant de traiter les poussieres de gueulard de fours electriques de fonte de fer d'acieries Download PDF

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Publication number
WO2003002775A3
WO2003002775A3 PCT/EP2002/007052 EP0207052W WO03002775A3 WO 2003002775 A3 WO2003002775 A3 WO 2003002775A3 EP 0207052 W EP0207052 W EP 0207052W WO 03002775 A3 WO03002775 A3 WO 03002775A3
Authority
WO
WIPO (PCT)
Prior art keywords
product
sintering
unload
flue gas
phases
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2002/007052
Other languages
English (en)
Other versions
WO2003002775A2 (fr
Inventor
Dario Bodino
Guglielmo Bodino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECOAER SpA
Original Assignee
TECOAER SpA
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 TECOAER SpA filed Critical TECOAER SpA
Priority to AU2002317847A priority Critical patent/AU2002317847A1/en
Publication of WO2003002775A2 publication Critical patent/WO2003002775A2/fr
Publication of WO2003002775A3 publication Critical patent/WO2003002775A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/006—Starting from ores containing non ferrous metallic oxides
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/02—Working-up flue dust
    • 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
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Procédé permettant de traiter les poussières de gueulard de fours électriques lors de la production de fonte brute, qui consiste à stocker les poussières obtenues par filtrage des gaz de fumées d'aciéries électriques avec les poussières d'un produit riche en oxydes de fer et un composé carboné, à mélanger le produit stocké, à transformer la masse ainsi obtenue en boulettes, à fritter le produit en boulettes, et à décharger le produit en boulettes dans un four à coke produisant une fonte brute. La phase de frittage est effectuée en au moins trois sous-phases séparées et indépendantes, à savoir le chargement du produit en boulettes, le déclenchement du frittage et la réduction des oxydes dans des conditions contrôlées d'air et de température, le produit en boulettes étant à l'état statique pendant toute la phase. L'installation destinée à la mise en oeuvre dudit procédé comporte trois silos (2, 3, 4) pour le stockage. Ces trois silos sont raccordés à au moins un mélangeur (5) adapté pour décharger le composé obtenu dans un dispositif de transformation (6) en boulettes. Ce dispositif de transformation en boulettes est équipé d'un moyen adapté pour décharger le produit en boulettes dans un dispositif de frittage (16) équipé d'un moyen permettant de décharger directement ou indirectement le produit fritté dans un four (8). Le dispositif de frittage (16) comporte un ensemble de trois postes (9, 10, 11), indépendants les uns des autres, qui sont capables d'effectuer les sous-phases séparées consistant à charger la masse, à déclencher le frittage de la masse et à fritter ladite masse. Au moins deux desdits postes (10, 11) situés après le premier (9) maintiennent la masse immobile dans des conditions contrôlées d'air et de température.
PCT/EP2002/007052 2001-06-29 2002-06-25 Procede permettant de traiter les poussieres de gueulard de fours electriques de fonte de fer d'acieries Ceased WO2003002775A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002317847A AU2002317847A1 (en) 2001-06-29 2002-06-25 Method and plant for treating flue gas dust of electric steelmaking furnaces and steel mills using pelletization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2001A001381 2001-06-29
IT2001MI001381A ITMI20011381A1 (it) 2001-06-29 2001-06-29 Procedimento di trattamento delle polveri contenute nei fumi di acciaieria con produzione di ghisa

Publications (2)

Publication Number Publication Date
WO2003002775A2 WO2003002775A2 (fr) 2003-01-09
WO2003002775A3 true WO2003002775A3 (fr) 2003-11-20

Family

ID=11447969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/007052 Ceased WO2003002775A2 (fr) 2001-06-29 2002-06-25 Procede permettant de traiter les poussieres de gueulard de fours electriques de fonte de fer d'acieries

Country Status (3)

Country Link
AU (1) AU2002317847A1 (fr)
IT (1) ITMI20011381A1 (fr)
WO (1) WO2003002775A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134725A2 (fr) * 2006-05-24 2007-11-29 Saudi Basic Industries Corporation Procédé de recyclage de sous-produits à base de fer dans l'industrie sidérurgique, boulette obtenue au moyen de ce procédé et son utilisation
CN110055361B (zh) * 2019-06-10 2020-12-01 成渝钒钛科技有限公司 焦丁高炉应用技术方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262771A (en) * 1963-06-20 1966-07-26 Mcdowell Wellman Eng Co Recovery of steel and zinc from waste materials
US3313617A (en) * 1964-02-06 1967-04-11 Mcdowell Wellman Eng Co Iron-containing flux material for steel-making process
US3770416A (en) * 1972-04-17 1973-11-06 Univ Michigan Tech Treatment of zinc rich steel mill dusts for reuse in steel making processes
US3836353A (en) * 1968-10-18 1974-09-17 C Holley Pellet reclamation process
JPS5022702A (fr) * 1973-07-02 1975-03-11
GB1422232A (en) * 1973-01-10 1976-01-21 Harsco Corp Process and system for producing metalized agglomerates and recovery of non-ferrous values from waste materials
JPS52111811A (en) * 1976-03-17 1977-09-19 Kobe Steel Ltd Preparation of sintered ore of low zinc content
GB2087856A (en) * 1980-11-14 1982-06-03 Kloeckner Humboldt Deutz Ag A method of separating non-ferrous materials
US4595574A (en) * 1984-01-26 1986-06-17 Sumitomo Heavy Industries, Ltd. Method for recovering zinc from substances containing a zinc compound
JPH10330852A (ja) * 1997-06-05 1998-12-15 Nippon Steel Corp 含亜鉛製鉄ダストの脱亜鉛塊成化方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262771A (en) * 1963-06-20 1966-07-26 Mcdowell Wellman Eng Co Recovery of steel and zinc from waste materials
US3313617A (en) * 1964-02-06 1967-04-11 Mcdowell Wellman Eng Co Iron-containing flux material for steel-making process
US3836353A (en) * 1968-10-18 1974-09-17 C Holley Pellet reclamation process
US3770416A (en) * 1972-04-17 1973-11-06 Univ Michigan Tech Treatment of zinc rich steel mill dusts for reuse in steel making processes
GB1422232A (en) * 1973-01-10 1976-01-21 Harsco Corp Process and system for producing metalized agglomerates and recovery of non-ferrous values from waste materials
JPS5022702A (fr) * 1973-07-02 1975-03-11
JPS52111811A (en) * 1976-03-17 1977-09-19 Kobe Steel Ltd Preparation of sintered ore of low zinc content
GB2087856A (en) * 1980-11-14 1982-06-03 Kloeckner Humboldt Deutz Ag A method of separating non-ferrous materials
US4595574A (en) * 1984-01-26 1986-06-17 Sumitomo Heavy Industries, Ltd. Method for recovering zinc from substances containing a zinc compound
JPH10330852A (ja) * 1997-06-05 1998-12-15 Nippon Steel Corp 含亜鉛製鉄ダストの脱亜鉛塊成化方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197524, Derwent World Patents Index; Class M24, AN 1975-40157W, XP002230127 *
DATABASE WPI Section Ch Week 197744, Derwent World Patents Index; Class M24, AN 1977-78316Y, XP002230128 *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 03 31 March 1999 (1999-03-31) *

Also Published As

Publication number Publication date
ITMI20011381A1 (it) 2002-12-29
WO2003002775A2 (fr) 2003-01-09
AU2002317847A1 (en) 2003-03-03
ITMI20011381A0 (it) 2001-06-29

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