WO2000076275A1 - Schmelzgefässe versehen mit einer gekühlten bodenelektrode - Google Patents
Schmelzgefässe versehen mit einer gekühlten bodenelektrode Download PDFInfo
- Publication number
- WO2000076275A1 WO2000076275A1 PCT/EP2000/005068 EP0005068W WO0076275A1 WO 2000076275 A1 WO2000076275 A1 WO 2000076275A1 EP 0005068 W EP0005068 W EP 0005068W WO 0076275 A1 WO0076275 A1 WO 0076275A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling
- plate
- carrier plate
- bottom electrode
- melting
- Prior art date
Links
- 238000002844 melting Methods 0.000 title claims abstract description 10
- 230000008018 melting Effects 0.000 title claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 55
- 239000002826 coolant Substances 0.000 claims abstract description 11
- 239000000155 melt Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000009847 ladle furnace Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 description 4
- 210000003739 neck Anatomy 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/24—Cooling arrangements
-
- 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; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/03—Electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/12—Arrangements for cooling, sealing or protecting electrodes
-
- 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; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
Definitions
- the invention relates to a bottom lect for metallurgical melting vessels such as arc smelting furnaces,
- Resistance melting furnaces or ladle furnaces, with contact elements which ensure the electrical power supply through the refractory lining of the melting vessel into the melt and which are firmly connected at their lower end to a carrier plate.
- EP 0 058 817 B1 describes a base electrode with a support plate (base plate) arranged below and at a distance from the furnace bottom, with which the electrode necks are connected directly.
- the space between the support plate and the furnace floor has a central air inlet opening around which star-shaped curved air guide plates are arranged. In this way, a Heilz rkulat on is brought about for cooling.
- a bottom electrode in which a support plate connecting the electrodes is also arranged at a distance from the furnace bottom, the cooling air by means of two fans via controllable valves into the cavity between the furnace bottom and the Blown in the carrier plate, temperature sensors located in the bores of the contact points (electrodes) record the current operating conditions (temperatures) and control the amount of cooling air by means of a control and regulating device by regulating the valves and switching the fans on or off these operating conditions are adjusted. In this way, in particular during longer breaks in operation, the speed of the temperature change of the base electrode does not exceed predetermined maximum values.
- the measure of the invention to arrange a cooling space below the carrier plate, through which a preferably fluid cooling medium flows, and to arrange cooling fins in this cooling chamber, which are preferably welded to the carrier plate, ensures that a larger area to be cooled is available . This results in greater heat dissipation combined with a longer service life for the electrodes than in known cooling devices according to the prior art.
- the cooling fins are also attached to the cooling plate, for example by welding, so that in addition to the improved heat dissipation there is also the advantage of already installing the St Romansch Luss on the cooling plate.
- the cooling fins then take over the electricity transport - 4 -
- the contact elements are formed in two parts from commercially available profiled iron with a thicker lower part, the length of which can be adapted to the respective operating conditions and is preferably 200 to 400 mm, and a thinner upper part serving as a wear part, which is immersed in the melt and which is the actual electrical part Connects to the melt.
- This thin upper part is welded onto the thicker lower part.
- the length of the upper part depends on the lining thickness and is selected so that the upper end dips into the melt and thus creates the electrical connection to the melt. After the refractory material and the upper part have worn out, the old weld seam is separated and a new upper part is welded on.
- the increased thickness of the contact element Unterteili advantageously improves the heat input into the carrier plate and simplifies the separation between this reinforced lower part and the wearing upper part and its renewal.
- a gaseous or a liquid medium can be used as the cooling medium that flows through the cooling chamber. It is possible according to the invention, in particular when using a liquid as the cooling medium, to use the cooling medium at the same time for cooling the furnace vessel, as a result of which, for example, necessary funding can advantageously be shared; However, the prerequisite is that the furnace vessel is designed with a double jacket.
- the figure shows a bottom electrode 1 with a cooling space 4 according to the invention.
- contacts 3 are welded with their lower part 3 '(only one contact element 3 is shown) and then the thinner upper part 3 1 ' is fastened, the fastening preferably also being carried out by welding.
- a cooling plate 5 is arranged at a distance below the carrier plate 2, as a result of which the cooling space 4 is formed between the carrier plate 2 and the cooling plate 5, through which a preferably fluid cooling medium can flow.
- cooling fins 6 are welded to the carrier plate 2, by means of which the cooling surface is significantly enlarged and the cooling effect is correspondingly increased.
- the cooling fins 6 are also firmly connected to the cooling plate 5, as a result of which an additional cooling effect is achieved. Since there is thus a direct metallic contact between the cooling plate 5 and the carrier plate 2, this contact can also be used for power conduction.
- the current is supplied to the base electrode 1 via a power supply line 9 via a contact jaw 7 arranged on the tube 8.
- the current flows from the contact jaw 7 via the tube 8 to the cooling plate 5 About the cooling fins 6 to the carrier plate 2, from which the contact elements 3 produce the St romzuf flow to the melt.
- the cooling medium can be fed centrally from below through the pipe 8 to the cooling space 4 and then discharged again through side openings 10; however, it is also possible to use the lateral openings 10 for supplying and removing the cooling medium.
- the cooling fins 6 are shaped and aligned accordingly in order to achieve the greatest possible cooling effect with the lowest possible flow resistance.
- the invention is not only limited to the exemplary embodiment shown, but can also be applied to other exemplary embodiments of floor electrodes, insofar as there is the constructive possibility of creating a cooling space by arranging a cooling plate.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
- Discharge Heating (AREA)
- Processing Of Solid Wastes (AREA)
- Resistance Heating (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/980,159 US6728291B1 (en) | 1999-06-04 | 2000-06-03 | Melting vessels provided with a cooled bottom electrode |
KR1020017015604A KR20020016819A (ko) | 1999-06-04 | 2000-06-03 | 냉각식 바닥 전극을 구비한 용융용기 |
EP00935164A EP1183914B1 (de) | 1999-06-04 | 2000-06-03 | Mit einer gekühlten bodenelektrode versehene schmelzgefässe |
CA002376150A CA2376150A1 (en) | 1999-06-04 | 2000-06-03 | Melting vessels provided with a cooled bottom electrode |
PL00352313A PL352313A1 (en) | 1999-06-04 | 2000-06-03 | Bottom electrode for metallurgical melting tanks |
BR0011242-9A BR0011242A (pt) | 1999-06-04 | 2000-06-03 | Eletrodo de fundo para recipientes de fundição metalúrgicos |
MXPA01012412A MXPA01012412A (es) | 1999-06-04 | 2000-06-03 | Recipientes de fundido provistos con un electrodo de fondo enfriado. |
DE50014089T DE50014089D1 (de) | 1999-06-04 | 2000-06-03 | Mit einer gekühlten bodenelektrode versehene schmelzgefässe |
JP2001501612A JP2003501791A (ja) | 1999-06-04 | 2000-06-03 | 冷却された底部電極を備えた熔解装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925554A DE19925554A1 (de) | 1999-06-04 | 1999-06-04 | Bodenelektrode für metallurgische Schmelzgefäße |
DE19925554.7 | 1999-06-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000076275A1 true WO2000076275A1 (de) | 2000-12-14 |
Family
ID=7910202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/005068 WO2000076275A1 (de) | 1999-06-04 | 2000-06-03 | Schmelzgefässe versehen mit einer gekühlten bodenelektrode |
Country Status (15)
Country | Link |
---|---|
US (1) | US6728291B1 (de) |
EP (1) | EP1183914B1 (de) |
JP (1) | JP2003501791A (de) |
KR (1) | KR20020016819A (de) |
CN (1) | CN1175712C (de) |
AT (1) | ATE354929T1 (de) |
BR (1) | BR0011242A (de) |
CA (1) | CA2376150A1 (de) |
DE (2) | DE19925554A1 (de) |
EG (1) | EG22333A (de) |
ES (1) | ES2281345T3 (de) |
MX (1) | MXPA01012412A (de) |
PL (1) | PL352313A1 (de) |
TR (1) | TR200103501T2 (de) |
WO (1) | WO2000076275A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004052054A1 (de) | 2002-12-03 | 2004-06-17 | Schott Ag | Verfahren und vorrichtung zur beheizung von schmelzen |
CN100505953C (zh) * | 2002-12-03 | 2009-06-24 | 肖特股份公司 | 有用于导电地加热熔体的电极的加热设备 |
DE202005012571U1 (de) * | 2005-08-10 | 2005-10-27 | Sms Demag Ag | Kühlvorrichtung für Elektroden eines metallurgischen Ofens |
FR2891981B1 (fr) * | 2005-10-10 | 2008-12-05 | Fai Production Soc Par Actions | Plaque de contact pour electrode de four d'electrometallurgie et procede pour la fabrication d'une telle plaque |
DE102006027648A1 (de) * | 2006-06-13 | 2007-12-20 | Arndt Dung | Wandungselemente für einen wassergekühlten, stromführenden Elektrodentragarm und aus solchen Wandungselementen bestehende Elektrodentragarme |
CN106065424A (zh) * | 2016-08-25 | 2016-11-02 | 陈学红 | 一种高炉冷却壁 |
CN112902674B (zh) * | 2021-01-26 | 2024-04-30 | 中冶赛迪工程技术股份有限公司 | 风冷触针式底电极 |
CN115127353B (zh) * | 2022-06-15 | 2024-09-13 | 中冶赛迪工程技术股份有限公司 | 一种长寿命横向风冷直流电弧炉底结构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4435812A (en) * | 1981-02-24 | 1984-03-06 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Electric furnace construction |
EP0422406A2 (de) * | 1989-10-12 | 1991-04-17 | Deutsche Voest-Alpine Industrieanlagenbau Gmbh | Anode für einen Gleichstromlichtbogenofen |
DE4424009A1 (de) * | 1994-07-08 | 1996-01-11 | Gutehoffnungshuette Man | Bodenelektrode für einen Gleichstrom-Lichtbogenofen |
DE19543374A1 (de) * | 1995-11-21 | 1997-05-22 | Gutehoffnungshuette Man | Bodenelektrode für einen Gleichstrom-Lichtbogenofen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE410654B (sv) * | 1978-02-28 | 1979-10-22 | Asea Ab | Likstromsljusbagsugn med minst en katodiskt ansluten elektrod och minst en bottnkontakt |
SE450857B (sv) * | 1985-02-21 | 1987-08-03 | Asea Ab | Forfarande for uppbyggnad av ljusbagslikstromsugnar eller -skenkar |
DE4130397A1 (de) * | 1991-09-12 | 1993-03-18 | Kortec Ag | Gleichstromofen mit einer herdelektrode, herdelektrode und elektrodenblock sowie betriebsverfahren fuer diesen ofen |
-
1999
- 1999-06-04 DE DE19925554A patent/DE19925554A1/de not_active Ceased
-
2000
- 2000-06-03 PL PL00352313A patent/PL352313A1/xx not_active Application Discontinuation
- 2000-06-03 TR TR2001/03501T patent/TR200103501T2/xx unknown
- 2000-06-03 CA CA002376150A patent/CA2376150A1/en not_active Abandoned
- 2000-06-03 MX MXPA01012412A patent/MXPA01012412A/es unknown
- 2000-06-03 CN CNB008084041A patent/CN1175712C/zh not_active Expired - Fee Related
- 2000-06-03 KR KR1020017015604A patent/KR20020016819A/ko not_active Application Discontinuation
- 2000-06-03 US US09/980,159 patent/US6728291B1/en not_active Expired - Lifetime
- 2000-06-03 JP JP2001501612A patent/JP2003501791A/ja not_active Withdrawn
- 2000-06-03 EG EG20000728A patent/EG22333A/xx active
- 2000-06-03 AT AT00935164T patent/ATE354929T1/de active
- 2000-06-03 WO PCT/EP2000/005068 patent/WO2000076275A1/de active IP Right Grant
- 2000-06-03 BR BR0011242-9A patent/BR0011242A/pt not_active Application Discontinuation
- 2000-06-03 DE DE50014089T patent/DE50014089D1/de not_active Expired - Lifetime
- 2000-06-03 ES ES00935164T patent/ES2281345T3/es not_active Expired - Lifetime
- 2000-06-03 EP EP00935164A patent/EP1183914B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4435812A (en) * | 1981-02-24 | 1984-03-06 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Electric furnace construction |
EP0422406A2 (de) * | 1989-10-12 | 1991-04-17 | Deutsche Voest-Alpine Industrieanlagenbau Gmbh | Anode für einen Gleichstromlichtbogenofen |
DE4424009A1 (de) * | 1994-07-08 | 1996-01-11 | Gutehoffnungshuette Man | Bodenelektrode für einen Gleichstrom-Lichtbogenofen |
DE19543374A1 (de) * | 1995-11-21 | 1997-05-22 | Gutehoffnungshuette Man | Bodenelektrode für einen Gleichstrom-Lichtbogenofen |
Also Published As
Publication number | Publication date |
---|---|
DE19925554A1 (de) | 2000-12-07 |
EP1183914A1 (de) | 2002-03-06 |
PL352313A1 (en) | 2003-08-11 |
JP2003501791A (ja) | 2003-01-14 |
DE50014089D1 (de) | 2007-04-05 |
EG22333A (en) | 2002-12-31 |
ATE354929T1 (de) | 2007-03-15 |
EP1183914B1 (de) | 2007-02-21 |
CA2376150A1 (en) | 2000-12-14 |
ES2281345T3 (es) | 2007-10-01 |
CN1175712C (zh) | 2004-11-10 |
US6728291B1 (en) | 2004-04-27 |
MXPA01012412A (es) | 2002-07-30 |
TR200103501T2 (tr) | 2002-04-22 |
KR20020016819A (ko) | 2002-03-06 |
CN1365593A (zh) | 2002-08-21 |
BR0011242A (pt) | 2004-11-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3106741C2 (de) | Kontaktelektroden-Anordnung für Lichtbogen- oder Widerstandsschmelzofen | |
EP1183914B1 (de) | Mit einer gekühlten bodenelektrode versehene schmelzgefässe | |
DE2621380A1 (de) | Primaerelektrodenanordnung fuer hochtemperatur-schmelzoefen | |
DE69111720T2 (de) | Mit gleichstrom betriebener ofen zum schmelzen von metall. | |
DE19614182C1 (de) | Wassergekühlte Kokille zum Herstellen von Blöcken oder Strängen sowie deren Verwendung | |
EP0133925A1 (de) | Bodenelektrodenanordnung für einen Gleichstromlichtbogenofen | |
EP0422406B1 (de) | Anode für einen Gleichstromlichtbogenofen | |
DE69414965T2 (de) | Gleichstromlichtbogenofen | |
EP0133652B1 (de) | Schutzanordnung für eine Bodenelektrode eines Gleichstromlichtbogenofens | |
EP0541044B1 (de) | Gleichstrom-Lichtbogenofen | |
EP1613131A1 (de) | Elektrodensystem für Glas-Schmelzöfen | |
EP0219649B1 (de) | Kontaktelektrodenanordnung für Gleichstrom-Lichtbogen- oder Widerstands-Schmelzofen | |
EP0133931B1 (de) | Kühlanordnung einer Bodenelektrode für einen Gleichstromlichtbogenofen | |
CH653201A5 (en) | Hollow electrode for feeding arc furnaces | |
EP0085461A1 (de) | Flüssigkeitsgekühlte Gefässwände für Lichtbogenöfen | |
DE4129756C2 (de) | Metallurgisches Gefäß für eine Gleichstromlichtbogeneinrichtung | |
EP0133926A1 (de) | Bodenelektrode für einen Gleichstromlichtbogenofen | |
DE10005821A1 (de) | Gekühlte Edelmetallelektrode zum Einstellen einer bestimmten Elektrodenoberfläche | |
EP3052881B1 (de) | Gefässunterteil, ein damit ausgebildetes metallurgisches gefäss sowie elektrolichtbogenofen und verfahren zu dessen betrieb | |
DE2336565C3 (de) | Anlage zum Elektroschlacke-Umschmelzen von Metallen | |
DE19540641C2 (de) | Verfahren zum Betrieb einer Induktionsvorrichtung beim Ausfluß nichtmetallischer Schmelzen | |
DE102005042864A1 (de) | Drainagevorrichtung für einen Glasschmelzofen sowie Glasschmelzofen mit einer solchen Drainagevorrichtung | |
DE2424805C3 (de) | Feststehender Induktionsofen | |
DE4214539C1 (de) | ||
EP1436561A1 (de) | Kühlplatte mit verstärkungsteil |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 00808404.1 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): BR CA CN ID IN JP KR MX PL RU TR UA US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2001 501612 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000935164 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2376150 Country of ref document: CA Ref document number: 2376150 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2001/012412 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020017015604 Country of ref document: KR Ref document number: 2001/03501 Country of ref document: TR |
|
WWE | Wipo information: entry into national phase |
Ref document number: IN/PCT/2002/12/CHE Country of ref document: IN |
|
ENP | Entry into the national phase |
Ref document number: 2002 2002100079 Country of ref document: RU Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09980159 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2000935164 Country of ref document: EP Ref document number: 1020017015604 Country of ref document: KR |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1020017015604 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 2000935164 Country of ref document: EP |