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FI79560B - Smaeltugn och foerfarande foer chargering av det material, som behandlas, in i den. - Google Patents

Smaeltugn och foerfarande foer chargering av det material, som behandlas, in i den. Download PDF

Info

Publication number
FI79560B
FI79560B FI880819A FI880819A FI79560B FI 79560 B FI79560 B FI 79560B FI 880819 A FI880819 A FI 880819A FI 880819 A FI880819 A FI 880819A FI 79560 B FI79560 B FI 79560B
Authority
FI
Finland
Prior art keywords
furnace
charging
electrodes
melting
melting furnace
Prior art date
Application number
FI880819A
Other languages
English (en)
Finnish (fi)
Other versions
FI880819A0 (fi
Inventor
Launo Leo Lilja
Matti Elias Honkaniemi
Risto Markus Heikkilae
Nils Haokan Hakulin
Helge Johannes Krogerus
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Priority to FI880819A priority Critical patent/FI79560B/fi
Publication of FI880819A0 publication Critical patent/FI880819A0/fi
Priority to SE8900415A priority patent/SE470387B/sv
Priority to ZA891206A priority patent/ZA891206B/xx
Priority to FR8902163A priority patent/FR2627578A1/fr
Priority to US07/313,960 priority patent/US4995051A/en
Priority to AT0039289A priority patent/AT395478B/de
Priority to NO890729A priority patent/NO173957C/no
Priority to DE3905486A priority patent/DE3905486B4/de
Application granted granted Critical
Publication of FI79560B publication Critical patent/FI79560B/fi

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • F27B3/183—Charging of arc furnaces vertically through the roof, e.g. in three points
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/30—Arrangements for extraction or collection of waste gases; Hoods therefor
    • F27D17/304—Arrangements for extraction or collection of waste gases; Hoods therefor specially adapted for electric arc furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/10—Arrangements for using waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/20—Arrangements for treatment or cleaning of waste gases
    • F27D17/22—Arrangements for treatment or cleaning of waste gases for removing solid constituents
    • F27D17/25—Arrangements for treatment or cleaning of waste gases for removing solid constituents using cyclones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0021—Arc heating
    • F27D2099/0023—DC arc heating
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (12)

1. Snältugn, särskilt likströmsljusbägsugn för behandling av finför-delat material, vilken ugn är försedd med minst tre genom ugnsvalvet nedstickande elektroder för bildande av en ljusbäge och i vilken ugnsvalvet uppvisar öppningar för chargering av fast material och avlags-nande av processgaser kännetecknad avatt för chargering av materialet son skall behandlas i smältugnen (5,8,25) finns innanför den cirkelperiferi som bildas av de genom valvet nedstickande elektroderna (4,16,26) ätminstone en chargeringsöppning (30) vartill anslutits organ för jämn chargering av material i smältugnen och att utanför den av elektroderna (4,16,26) bildade cirkelperiferin finns ätminstone en utloppsöppning (20) för avledning av gaserna som bildats under behandlir.gen.
2. Smältugn enligt patentkravet 1, kännetecknad av att de tili chargeringsöppningen (30) anslutna organen för jämn chargering bildar ett väsentligen slutet system med smältugnens (5,8,25) gas-utrymme.
3. Smältugn enligt patentkravet 1 eller 2, kännetecknad av att tili chargeringsöppningen (30) anslutits säväl en koncentrat-spridare (3,24) för materialet som skall behandlas som en förvärm-ningsenhet (2,11).
4. Smältugn enligt patentkravet 1, 2 eller 3, känneteck nad av att tili chargeringsöppningen (30) anslutits en förvärmn-ingsenhet (2, 11) för materialet som skall behandlas.
5. Smältugn enligt nägot av de föregäende patentkraven, kän netecknad av att förvärmningsenheten (2,11) är nedät avsmal-nande.
6. Smältugn enligt patentkravet 1, 2 eller 3, känneteck nad av att tili chargeringsöppningen (30) anslutits en koncentrat-spridare (24) för materialet som skall behandlas.
FI880819A 1988-02-22 1988-02-22 Smaeltugn och foerfarande foer chargering av det material, som behandlas, in i den. FI79560B (fi)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI880819A FI79560B (fi) 1988-02-22 1988-02-22 Smaeltugn och foerfarande foer chargering av det material, som behandlas, in i den.
SE8900415A SE470387B (sv) 1988-02-22 1989-02-07 Smältugn i synnerhet en likströmsljusbågsugn för behandling av finfördelat material samt förfarande för tillförsel av finfördelat material i nämnda smältugn
ZA891206A ZA891206B (en) 1988-02-22 1989-02-16 Smelting furnace and method for feeding material to be processed therein
FR8902163A FR2627578A1 (fr) 1988-02-22 1989-02-20 Four a fusion et procede pour introduire dans celui-ci le materiau a traiter
US07/313,960 US4995051A (en) 1988-02-22 1989-02-21 Smelting furnace and method for feeding material to be processed therein
AT0039289A AT395478B (de) 1988-02-22 1989-02-21 Schmelzofen und verfahren zum zufuehren von darin zu verarbeitendem material
NO890729A NO173957C (no) 1988-02-22 1989-02-21 Smeltwovn og fremgangsmaate for unnmating av materiale som skal behandles deri
DE3905486A DE3905486B4 (de) 1988-02-22 1989-02-22 Schmelzofen und Beschickungsverfahren für denselben

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI880819A FI79560B (fi) 1988-02-22 1988-02-22 Smaeltugn och foerfarande foer chargering av det material, som behandlas, in i den.
FI880819 1988-02-22

Publications (2)

Publication Number Publication Date
FI880819A0 FI880819A0 (fi) 1988-02-22
FI79560B true FI79560B (fi) 1989-09-29

Family

ID=8525965

Family Applications (1)

Application Number Title Priority Date Filing Date
FI880819A FI79560B (fi) 1988-02-22 1988-02-22 Smaeltugn och foerfarande foer chargering av det material, som behandlas, in i den.

Country Status (8)

Country Link
US (1) US4995051A (sv)
AT (1) AT395478B (sv)
DE (1) DE3905486B4 (sv)
FI (1) FI79560B (sv)
FR (1) FR2627578A1 (sv)
NO (1) NO173957C (sv)
SE (1) SE470387B (sv)
ZA (1) ZA891206B (sv)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4209765C2 (de) * 1992-03-23 1994-11-03 Mannesmann Ag Verfahren und Vorrichtung zur Behandlung der Abgase eines Lichtbogenofens
JPH06300449A (ja) * 1993-04-15 1994-10-28 Ishikawajima Harima Heavy Ind Co Ltd 直流アーク炉
JP3424259B2 (ja) * 1993-04-15 2003-07-07 石川島播磨重工業株式会社 直流アーク炉
AT403846B (de) * 1994-06-28 1998-05-25 Voest Alpine Ind Anlagen Schrotteinschmelz-elektro-lichtbogenofen
US5588982A (en) * 1995-05-01 1996-12-31 Alabama Power Company Process for producing foudry iron
US5912916A (en) * 1995-05-01 1999-06-15 Alabama Power Company Electric furnace with insulated electrodes and process for producing molten metals
DE19846100C2 (de) 1998-10-07 2000-08-03 Sms Demag Ag Gleichstromlichtbogenofen zur Herstellung von Stahl sowie Verfahren hierzu
GB9922542D0 (en) * 1999-09-24 1999-11-24 Rhs Paneltech Ltd Metallurgical ladle/furnace roof
DE10312841B3 (de) * 2003-03-21 2004-07-01 Corus Aluminium Voerde Gmbh Verwendung von kohlenstoffhaltigem Abfallmaterial sowie dafür vorgesehener Anodenbrennofen
US7704443B2 (en) * 2007-12-04 2010-04-27 Alcoa, Inc. Carbothermic aluminum production apparatus, systems and methods
DE102010008839B4 (de) * 2010-02-22 2016-04-21 Spectro Analytical Instruments Gmbh Verfahren zur Bestimmung von Kohlenstoff in Gusseisen
RU2476599C2 (ru) * 2011-03-16 2013-02-27 Учреждение Российской академии наук Институт металлургии и материаловедения им. А.А. Байкова РАН Способ электродугового жидкофазного углетермического восстановления железа из оксидного сырья и устройство для его осуществления
RU2486259C1 (ru) * 2011-12-21 2013-06-27 Учреждение Российской академии наук Институт металлургии и материаловедения им. А.А. Байкова РАН Способ бестигельного электродугового жидкофазного восстановления железа из оксидного сырья и устройство для его осуществления

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1427436A (en) * 1918-07-17 1922-08-29 Walter E F Bradley Electric-furnace construction
US2159286A (en) * 1935-09-25 1939-05-23 Pittsburgh Res Corp Reduction furnace
DE1099744B (de) * 1959-05-23 1961-02-16 Demag Elektrometallurgie Gmbh Elektrischer Reduktionsofen mit zentral angeordneter Beschickungseinrichtung
US3462538A (en) * 1967-05-19 1969-08-19 Tubos De Acero De Mexico Sa Method and apparatus for the continuous charging of sponge iron granules into an electric furnace
JPS4817403B1 (sv) * 1968-10-03 1973-05-29
US4082914A (en) * 1973-05-14 1978-04-04 Nikolai Iosifovich Bortnichuk Method of stabilizing arc voltage in plasma arc furnace and apparatus for effecting same
US4076954A (en) * 1973-05-17 1978-02-28 Rolf Linder Method and an electrically heated device for producing molten metal from powders or lumps of metal oxides
SE7503782L (sv) * 1975-04-02 1976-10-03 Asea Ab Sett och anordning for smeltreduktion av finkornigt jernoxidhaltigt material
US4087274A (en) * 1975-07-04 1978-05-02 Boliden Aktiebolag Method of producing a partially reduced product from finely-divided metal sulphides
FI66434C (fi) * 1975-07-04 1984-10-10 Boliden Ab Foerfarande foer framstaellning av smaelt metall ur finfoerdelade material
DE3017939C2 (de) * 1980-05-10 1983-01-27 Mannesmann AG, 4000 Düsseldorf Teilgeschlossener Elektro-Reduktionsofen
US4385918A (en) * 1982-01-26 1983-05-31 Owens-Corning Fiberglas Corporation Method and apparatus for feeding raw material to an arc furnace
DE3603948A1 (de) * 1986-02-06 1987-08-13 Mannesmann Ag Lichtbogenreduktions- oder lichtbogen-restreduktionsofen, insbesondere fuer das inred-verfahren

Also Published As

Publication number Publication date
DE3905486B4 (de) 2005-07-07
DE3905486A1 (de) 1989-08-31
SE8900415D0 (sv) 1989-02-07
FI880819A0 (fi) 1988-02-22
US4995051A (en) 1991-02-19
AT395478B (de) 1993-01-25
ZA891206B (en) 1989-11-29
SE8900415L (sv) 1989-08-23
ATA39289A (de) 1992-05-15
NO890729D0 (no) 1989-02-21
NO890729L (no) 1989-08-23
SE470387B (sv) 1994-02-07
FR2627578A1 (fr) 1989-08-25
NO173957B (no) 1993-11-15
FR2627578B1 (sv) 1994-12-16
NO173957C (no) 1994-02-23

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CD Patent refused following opposition
FC Application refused

Owner name: OUTOKUMPU OY