SE470387B - Smältugn i synnerhet en likströmsljusbågsugn för behandling av finfördelat material samt förfarande för tillförsel av finfördelat material i nämnda smältugn - Google Patents

Smältugn i synnerhet en likströmsljusbågsugn för behandling av finfördelat material samt förfarande för tillförsel av finfördelat material i nämnda smältugn

Info

Publication number: SE470387B
Authority: SE; Sweden
Prior art keywords: furnace; melting; solid material; finely divided; melting furnace
Prior art date: 1988-02-22

Application number

SE8900415A

Other languages

English (en)

Swedish (sv)

Other versions

SE8900415D0 (sv

SE8900415L (sv

Inventor

N H Hakulin

R M Heikkilae

M E Honkaniemi

H J Krogerus

L L Lilja

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.)

1988-02-22

Filing date

1989-02-07

Publication date

1994-02-07

1989-02-07 Application filed by Outokumpu Oy filed Critical Outokumpu Oy

1989-02-07 Publication of SE8900415D0 publication Critical patent/SE8900415D0/xx

1989-08-23 Publication of SE8900415L publication Critical patent/SE8900415L/xx

1994-02-07 Publication of SE470387B publication Critical patent/SE470387B/sv

Links

238000002844 melting Methods 0.000 title claims description 50
230000008018 melting Effects 0.000 title claims description 50
239000000463 material Substances 0.000 title claims description 29
238000000034 method Methods 0.000 title claims description 20
239000007789 gas Substances 0.000 claims description 37
239000011343 solid material Substances 0.000 claims description 16
239000000725 suspension Substances 0.000 claims description 11
239000010802 sludge Substances 0.000 claims description 3
238000007599 discharging Methods 0.000 claims 1
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
239000002245 particle Substances 0.000 description 8
239000002893 slag Substances 0.000 description 8
238000010438 heat treatment Methods 0.000 description 7
239000000155 melt Substances 0.000 description 7
239000003638 chemical reducing agent Substances 0.000 description 6
238000003723 Smelting Methods 0.000 description 5
229910052742 iron Inorganic materials 0.000 description 5
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
229910052804 chromium Inorganic materials 0.000 description 4
239000011651 chromium Substances 0.000 description 4
230000004907 flux Effects 0.000 description 4
229910044991 metal oxide Inorganic materials 0.000 description 4
150000004706 metal oxides Chemical class 0.000 description 4
229910052760 oxygen Inorganic materials 0.000 description 4
239000001301 oxygen Substances 0.000 description 4
ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
229910000604 Ferrochrome Inorganic materials 0.000 description 3
239000000203 mixture Substances 0.000 description 3
230000005855 radiation Effects 0.000 description 3
239000002994 raw material Substances 0.000 description 3
239000007787 solid Substances 0.000 description 3
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
239000000292 calcium oxide Substances 0.000 description 2
238000002485 combustion reaction Methods 0.000 description 2
AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
238000010309 melting process Methods 0.000 description 2
229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
229910001021 Ferroalloy Inorganic materials 0.000 description 1
229910004298 SiO 2 Inorganic materials 0.000 description 1
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
238000005452 bending Methods 0.000 description 1
BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
239000000571 coke Substances 0.000 description 1
239000000567 combustion gas Substances 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
229910000514 dolomite Inorganic materials 0.000 description 1
239000010459 dolomite Substances 0.000 description 1
238000010891 electric arc Methods 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
229910052976 metal sulfide Inorganic materials 0.000 description 1
239000011044 quartzite Substances 0.000 description 1
238000007670 refining Methods 0.000 description 1
238000000926 separation method Methods 0.000 description 1
229910052710 silicon Inorganic materials 0.000 description 1
239000010703 silicon Substances 0.000 description 1
239000000377 silicon dioxide Substances 0.000 description 1
239000002002 slurry Substances 0.000 description 1
238000009628 steelmaking Methods 0.000 description 1

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)
Vertical, Hearth, Or Arc Furnaces (AREA)
Furnace Details (AREA)
Processing Of Solid Wastes (AREA)

SE8900415A 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 SE470387B (sv)

Applications Claiming Priority (1)

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.

Publications (3)

Publication Number	Publication Date
SE8900415D0 SE8900415D0 (sv)	1989-02-07
SE8900415L SE8900415L (sv)	1989-08-23
SE470387B true SE470387B (sv)	1994-02-07

Family

ID=8525965

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
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

Country Status (8)

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

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 (no) *	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
FI66434C (fi) *	1975-07-04	1984-10-10	Boliden Ab	Foerfarande foer framstaellning av smaelt metall ur finfoerdelade material
US4087274A (en) *	1975-07-04	1978-05-02	Boliden Aktiebolag	Method of producing a partially reduced product from finely-divided metal sulphides
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

1988
- 1988-02-22 FI FI880819A patent/FI79560B/fi not_active Application Discontinuation
1989
- 1989-02-07 SE SE8900415A patent/SE470387B/sv not_active IP Right Cessation
- 1989-02-16 ZA ZA891206A patent/ZA891206B/xx unknown
- 1989-02-20 FR FR8902163A patent/FR2627578A1/fr active Granted
- 1989-02-21 US US07/313,960 patent/US4995051A/en not_active Expired - Lifetime
- 1989-02-21 NO NO890729A patent/NO173957C/no not_active IP Right Cessation
- 1989-02-21 AT AT0039289A patent/AT395478B/de not_active IP Right Cessation
- 1989-02-22 DE DE3905486A patent/DE3905486B4/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
ZA891206B (en)	1989-11-29
NO173957B (no)	1993-11-15
SE8900415D0 (sv)	1989-02-07
FI880819A0 (fi)	1988-02-22
SE8900415L (sv)	1989-08-23
FR2627578B1 (no)	1994-12-16
DE3905486B4 (de)	2005-07-07
DE3905486A1 (de)	1989-08-31
FI79560B (fi)	1989-09-29
AT395478B (de)	1993-01-25
NO173957C (no)	1994-02-23
ATA39289A (de)	1992-05-15
FR2627578A1 (fr)	1989-08-25
US4995051A (en)	1991-02-19
NO890729L (no)	1989-08-23
NO890729D0 (no)	1989-02-21

Publication	Publication Date	Title
CA1320526C (en)	1993-07-20	Process for increasing the energy input in electric arc furnaces
SE470387B (sv)	1994-02-07	Smältugn i synnerhet en likströmsljusbågsugn för behandling av finfördelat material samt förfarande för tillförsel av finfördelat material i nämnda smältugn
EP0693561A1 (en)	1996-01-24	Electric arc furnace post-combustion method
US5882374A (en)	1999-03-16	Process for producing foundry iron with an insulated electrode
EP0864658B1 (en)	2002-04-17	Refining iron ore
Mac Rae	1989	Plasma arc process systems, reactors, and applications
US5431710A (en)	1995-07-11	Method for continuously producing iron, steel or semi-steel and energy
US5912916A (en)	1999-06-15	Electric furnace with insulated electrodes and process for producing molten metals
CA1224336A (en)	1987-07-21	Process of producing liquid carbon-containing iron
US4521890A (en)	1985-06-04	Plasma arc furnaces
US6685761B1 (en)	2004-02-03	Method for producing beneficiated titanium oxides
EP2689041B1 (en)	2021-04-28	Direct smelting process for high sulphur feed
EP0976840B1 (en)	2004-06-16	Method of operating rotary hearth furnace for reducing oxides
US4644557A (en)	1987-02-17	Process for the production of calcium carbide and a shaft furnace for carrying out the process
AU673049B2 (en)	1996-10-24	Method and apparatus for producing iron
WO2016120529A1 (en)	2016-08-04	Method for producing titanium oxide-containing slag and pig iron from ilmenite and a plant
US4406008A (en)	1983-09-20	Three phase arc melting and reduction furnace
US4851039A (en)	1989-07-25	Process for the production of pig iron using cyclone
CN2399691Y (zh)	2000-10-04	熔炼高熔点物质的电弧炉
EP3220083A1 (en)	2017-09-20	Treatment of particulate waste
US4772318A (en)	1988-09-20	Process for the production of steel from scrap
CA2372809A1 (en)	2000-11-23	Method and installation with smelting and reduction cyclone and a coupled lower furnace for utilising residual material containing iron and heavy metals and optionally iron ore
US20240026476A1 (en)	2024-01-25	Method and apparatus for metals, alloys, mattes, or enriched and cleaned slags production from predominantly oxide feeds
Jones et al.	1993	Developments in plasma furnace technology
RU2115753C1 (ru)	1998-07-20	Способ переработки сульфидных медных концентратов

Legal Events

Date	Code	Title	Description
1995-01-31	NAL	Patent in force	Ref document number: 8900415-4 Format of ref document f/p: F
2009-04-14	NUG	Patent has lapsed

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