[go: up one dir, main page]

WO2003002775A3 - Method and plant for treating flue gas dust of electric steelmaking furnaces and steel mills using pelletization - Google Patents

Method and plant for treating flue gas dust of electric steelmaking furnaces and steel mills using pelletization Download PDF

Info

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
French (fr)
Other versions
WO2003002775A2 (en
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/en
Publication of WO2003002775A3 publication Critical patent/WO2003002775A3/en
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

A method for the flue gas dust treatment with pig iron production is described comprising the phases of storing (2, 3, 4) the dusts obtained from the filtering of the electric steel mills' flue gas together with dusts of a product rich in iron oxides and a carbonaceous compound; mixing (5) the storaged product; pelletizing (6) the mass thus obtained; sintering the pelletized product; and unload the pelletized product into a pig iron producing coke furnace (8). The pellet sintering is carried out in at least three separate and independent sub-phases of loading the pelletized product, carrying out its ignition and reducing the oxides in controlled air and temperature conditions, the pelletized product being in static conditions during the whole phase. The plant for the carrying out of the method comprising at least three silos (2, 3, 4) for the storing, said three silos being connected to at least a mixer (5) fit to unload the obtained compound into a pelletizing device (6), said pelletizing device being equipped with means fit to unload the pelletized product into a sintering device (16), equipped with means to directly or indirectly unload the sintered product into a furnace (8). Said sintering device (16) is made of a set of containers (18) fixed to a closed loop carrier belt (17) and comprises a set of three stations (9, 10, 11), one independent from the other, able to carry out the separate sub-phases of loading of the mass, its ignition and sintering, and wherein at least two of said stations (10, 11) subsequent to the first one (9) keep the mass still in controlled air and temperature conditions.
PCT/EP2002/007052 2001-06-29 2002-06-25 Method and plant for treating flue gas dust of electric steelmaking furnaces and steel mills using pelletization Ceased WO2003002775A2 (en)

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 (en) 2001-06-29 2001-06-29 PROCESS OF TREATMENT OF DUST CONTAINED IN STEEL FUMES WITH CAST IRON PRODUCTION

Publications (2)

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

Family

ID=11447969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/007052 Ceased WO2003002775A2 (en) 2001-06-29 2002-06-25 Method and plant for treating flue gas dust of electric steelmaking furnaces and steel mills using pelletization

Country Status (3)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134725A2 (en) * 2006-05-24 2007-11-29 Saudi Basic Industries Corporation Process for recycling of steel industry iron-bearing by-products by treating pellets in direct reduction furnaces
CN110055361B (en) * 2019-06-10 2020-12-01 成渝钒钛科技有限公司 Coke oven blast furnace application technique

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 (en) * 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 (en) * 1997-06-05 1998-12-15 Nippon Steel Corp Dezincification and agglomeration of zinc-containing iron dust

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 (en) * 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 (en) * 1997-06-05 1998-12-15 Nippon Steel Corp Dezincification and agglomeration of zinc-containing iron dust

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 (en) 2002-12-29
WO2003002775A2 (en) 2003-01-09
AU2002317847A1 (en) 2003-03-03
ITMI20011381A0 (en) 2001-06-29

Similar Documents

Publication Publication Date Title
US7806959B2 (en) Metallic iron nuggets
US6258149B1 (en) Method of producing reduced iron agglomerates
CA2346977C (en) Method of producing molten iron in duplex furnaces
EP1160336A1 (en) Method of and apparatus for manufacturing metallic iron
RU2240354C2 (en) Method for producing of liquid metal iron
JP3635256B2 (en) Reduction method of iron oxide
AU2003201918B2 (en) Process for producing molten iron
WO2013011521A1 (en) A method for direct reduction of oxidized chromite ore fines composite agglomerates in a tunnel kiln using carbonaceous reductant for production of reduced chromite product/ agglomerates applicable in ferrochrome or charge chrome production.
WO2003002775A3 (en) Method and plant for treating flue gas dust of electric steelmaking furnaces and steel mills using pelletization
JP4859268B2 (en) Hot metal manufacturing method and hot metal manufacturing apparatus
US6241804B1 (en) Process for producing iron briquettes and/or cold iron sponge
JP2000034526A (en) Method for producing reduced iron pellets
US5516358A (en) Method for the production of iron carbide
JP7067532B2 (en) A method for dephosphorizing a manganese oxide-containing substance, a method for producing a low-phosphorus-containing manganese oxide-containing substance, and a method for producing steel using the manganese oxide-containing substance.
YOSHIKOSHI et al. Development of composite cold pellet for silico-manganese production
JP7043994B2 (en) Sintered ore manufacturing method
CA1204943A (en) Process of producing sponge iron by a direct reduction of iron oxide-containing material
JPS5970704A (en) Desulfurization method in iron making process by direct reduction
JP2000119722A (en) Method for producing reduced iron pellets
KR0119553B1 (en) Sintering method of dust
JP2000054034A (en) Operating method of reduction furnace in the production of reduced iron pellets
JPH09310111A (en) Pellet for producing sponge iron and production of sponge iron
JPS62283847A (en) Manufacture of quick lime for reactive refiner
CN1236817A (en) Process for making acidic spheroidized ore
JPH0466625A (en) Treatment of metal containing dust, sludge or the like in by-product in iron-making plant

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP