EP0275384A1 - Récipient métallurgique en particulier four électrique avec ou plusieurs électrodes de fond - Google Patents

Récipient métallurgique en particulier four électrique avec ou plusieurs électrodes de fond Download PDF

Info

Publication number
EP0275384A1
EP0275384A1 EP87116369A EP87116369A EP0275384A1 EP 0275384 A1 EP0275384 A1 EP 0275384A1 EP 87116369 A EP87116369 A EP 87116369A EP 87116369 A EP87116369 A EP 87116369A EP 0275384 A1 EP0275384 A1 EP 0275384A1
Authority
EP
European Patent Office
Prior art keywords
contact
tabs
vessel
clamping frame
electric furnace
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.)
Granted
Application number
EP87116369A
Other languages
German (de)
English (en)
Other versions
EP0275384B1 (fr
Inventor
Heinz Guido
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.)
MAN Gutehoffnungshutte GmbH
Original Assignee
MAN Gutehoffnungshutte GmbH
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 MAN Gutehoffnungshutte GmbH filed Critical MAN Gutehoffnungshutte GmbH
Priority to AT87116369T priority Critical patent/ATE64513T1/de
Publication of EP0275384A1 publication Critical patent/EP0275384A1/fr
Application granted granted Critical
Publication of EP0275384B1 publication Critical patent/EP0275384B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • Electric furnaces in particular direct-current arc furnaces, have a contact device in their base, which makes the necessary electrical contact with the scrap or melt during the melting process.
  • Such a contact device is e.g. in EP-PS 0 058 817.
  • This replacement is preferably done by removing the bottom electrode in one piece from the furnace vessel and replacing it with a new one.
  • the power cables remain suspended from the bottom of the furnace.
  • the object of the invention is to provide a suspension for the power cable, which at the same time also easily and reliably establishes the necessary contact for the power line to the bottom electrode and adjusts itself without displacement and misalignment of the mating contact on the bottom electrode.
  • the embodiment of the The suspension device is also characterized in that the contact devices can be reused even after the bottom electrode has been changed several times.
  • Fig. 1 shows the furnace vessel (1) with the refractory lining (2) located inside.
  • the bottom electrode consisting of a support plate (3), base plate (4), contact bars (5) and refractory stamping (6) can be seen.
  • the power cables (7) are attached to the tabs (8).
  • the straps are suspended in a clamping frame (10) by means of supporting bolts (9).
  • the tenter frame (10) is fastened in an insulated manner to two supports (11), which in turn are anchored to the furnace vessel.
  • Fig. 2 shows the details of the arrangement described.
  • the connection between the support bolts (9) and the bracket (8) is angularly movable, for example, a spherical plain bearing. Because of the angular mobility it is of the tab possible to fit exactly against the counter contact (14) of the base electrode without squeezing.
  • a spring (13) which is installed in the clamping frame (10), presses the tab (8) against the mating contact (14) by means of displaceable support bolts (9) and articulated bearings (12).
  • the opening of the contact device necessary for replacing the base electrode takes place in such a way that the supporting bolts (9) are withdrawn from outside the clamping frame. This also pulls the tabs (8) back and opens the contact.
  • FIG. 3 shows the device in a sectional view rotated by 90. It can be seen that the clamping frame (10) is fastened to the insulators (16) by means of a sliding connection (15). By means of this sliding connection, the clamping frame (10) can automatically align itself with the mating contact (14) when the tabs (8) are pressed on. This freedom from torsion of the tabs (8) achieved by the sliding connection and the angular mobility of the spherical bearings ensures that the tabs (8) are correctly seated against the mating contact (14) and that the pressure is distributed evenly over the entire contact surface.
  • the insulators (16) are attached to supports (11).
  • the carriers (11) are attached to the furnace vessel (1). This arrangement ensures that the current flows into the melt exclusively via the tabs and the bottom electrode.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Furnace Details (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Discharge Heating (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP87116369A 1987-01-22 1987-11-06 Récipient métallurgique en particulier four électrique avec ou plusieurs électrodes de fond Expired - Lifetime EP0275384B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116369T ATE64513T1 (de) 1987-01-22 1987-11-06 Metallurgisches gefaess, insbesondere elektroofen mit einer oder mehreren bodenelektroden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3701678 1986-01-22
DE19873701678 DE3701678A1 (de) 1987-01-22 1987-01-22 Metallurgisches gefaess, insbesondere elektroofen mit einer oder mehreren bodenelektroden

Publications (2)

Publication Number Publication Date
EP0275384A1 true EP0275384A1 (fr) 1988-07-27
EP0275384B1 EP0275384B1 (fr) 1991-06-12

Family

ID=6319236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116369A Expired - Lifetime EP0275384B1 (fr) 1987-01-22 1987-11-06 Récipient métallurgique en particulier four électrique avec ou plusieurs électrodes de fond

Country Status (9)

Country Link
US (1) US4843614A (fr)
EP (1) EP0275384B1 (fr)
JP (1) JPH076741B2 (fr)
AT (1) ATE64513T1 (fr)
BR (1) BR8800212A (fr)
DE (2) DE3701678A1 (fr)
ES (1) ES2022862B3 (fr)
MX (1) MX168377B (fr)
NO (1) NO171760C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428150A1 (fr) * 1989-11-14 1991-05-22 Asahi Glass Company Ltd. Electrode de fond pour four à arc à courant continu
EP0474883A1 (fr) * 1990-03-19 1992-03-18 Kawasaki Steel Corporation Four electrique de fonte de metal a courant continu
DE4108583A1 (de) * 1991-03-14 1992-09-17 Mannesmann Ag Vorrichtung zum kuppeln der stromzufuehrung zu einem metallurgischen gefaess

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817379C1 (fr) * 1988-05-18 1989-06-22 Mannesmann Ag, 4000 Duesseldorf, De
DE4236510C2 (de) * 1992-10-26 1996-05-30 Mannesmann Ag Vorrichtung zum Einschmelzen von Schrott
FR2750537B1 (fr) * 1996-06-27 1998-08-28 Action Finances Ind Dispositif de connexion electrique d'une electrode en particulier d'un four metallurgique, a moyens de rappel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058817A1 (fr) * 1981-02-24 1982-09-01 Man Gutehoffnungshütte Gmbh Arrangement d'électrode de contact pour four à arc ou four de fusion par résistance
EP0133925A1 (fr) * 1983-07-28 1985-03-13 BBC Aktiengesellschaft Brown, Boveri & Cie. Electrode de fond pour un four à arc à courant continu

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH478465A (de) * 1967-11-20 1969-09-15 Boehler & Co Ag Geb Vorrichtung zum Anschliessen elektrischer Leitungen an Elektroden und/oder Bodenplatten, insbesondere in Anlagen zum Elektroschlackenumschmelzen von Metallen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058817A1 (fr) * 1981-02-24 1982-09-01 Man Gutehoffnungshütte Gmbh Arrangement d'électrode de contact pour four à arc ou four de fusion par résistance
EP0133925A1 (fr) * 1983-07-28 1985-03-13 BBC Aktiengesellschaft Brown, Boveri & Cie. Electrode de fond pour un four à arc à courant continu

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428150A1 (fr) * 1989-11-14 1991-05-22 Asahi Glass Company Ltd. Electrode de fond pour four à arc à courant continu
US5142650A (en) * 1989-11-14 1992-08-25 Asahi Glass Company Ltd. Bottom electrode for a direct current arc furnace
EP0474883A1 (fr) * 1990-03-19 1992-03-18 Kawasaki Steel Corporation Four electrique de fonte de metal a courant continu
EP0474883A4 (en) * 1990-03-19 1992-09-23 Kawasaki Steel Corporation Dc electric furnace for melting metal
US5410564A (en) * 1990-03-19 1995-04-25 Kawasaki Steel Corporation Direct current electric furnace for melting metal
DE4108583A1 (de) * 1991-03-14 1992-09-17 Mannesmann Ag Vorrichtung zum kuppeln der stromzufuehrung zu einem metallurgischen gefaess
EP0512657A2 (fr) * 1991-03-14 1992-11-11 MANNESMANN Aktiengesellschaft Dispositif pour accoupler l'alimentation de courant à un récipient métallurgique
EP0512657A3 (en) * 1991-03-14 1993-02-17 Mannesmann Aktiengesellschaft Device for coupling the current feed to a metallurgical vessel

Also Published As

Publication number Publication date
NO880239D0 (no) 1988-01-21
ES2022862B3 (es) 1991-12-16
JPS63259378A (ja) 1988-10-26
BR8800212A (pt) 1988-08-30
NO880239L (no) 1988-07-25
DE3770798D1 (de) 1991-07-18
JPH076741B2 (ja) 1995-01-30
MX168377B (es) 1993-05-20
NO171760B (no) 1993-01-18
ATE64513T1 (de) 1991-06-15
EP0275384B1 (fr) 1991-06-12
US4843614A (en) 1989-06-27
NO171760C (no) 1993-04-28
DE3701678A1 (de) 1988-08-04

Similar Documents

Publication Publication Date Title
DE3245070C2 (de) Vorrichtung zur genauen Einstellung der Anodenebene einer Zelle zur Herstellung von Aluminium durch Schmelzflußelektrolyse
DE4035233C2 (de) Gleichstrom-Lichtbogenofen
EP0275384B1 (fr) Récipient métallurgique en particulier four électrique avec ou plusieurs électrodes de fond
EP0203339B1 (fr) Dispositif pour soulever et faire pivoter le couvercle d'un four à arc
EP0219649B1 (fr) Disposition d'électrodes de contact pour fours à arc à courant continu ou fours de fusion à résistance
EP3002534A1 (fr) Four de refusion avec une cellule de pesage
DE2659762A1 (de) Vorrichtung zum biegen von glasscheiben in relativ scharfen winkeln
EP0036473B1 (fr) Dispositif de desserrage pour support d'électrodes dans des fours à fusion électrique
EP0221270B1 (fr) Connexion pour l'électrode de contact d'un four à arc à courant continu ou d'un four de fusion à résistance
DE2819836A1 (de) Lichtbogenofen
DE1293360B (de) Einrichtung zur Halterung und Stromversorgung einer Abschmelzelektrode in einem Lichtbogenofen
EP1629699B1 (fr) Four a arc a courant continu
US3909576A (en) Chain link and joiner heater
DE2263237C3 (de) Einrichtung zur Befestigung und zur Stromversorgung mehrerer Elektroden
DE3342900A1 (de) Elektrodenfassungssystem fuer elektrothermische schmelzoefen
DE19839432C2 (de) Elektro-Schmelzanlage
EP0384178A2 (fr) Chariot collecteur de courant
AT520702B1 (de) Vorrichtung zur Stromversorgung von Schmelzöfen
DE142600C (fr)
DE2336565C3 (de) Anlage zum Elektroschlacke-Umschmelzen von Metallen
DE317407C (fr)
EP0344092A2 (fr) Installation pour le traitement thermique d'un bain métallique
DE1927778C (de) Gerät zur Zuleitung eines elektrischen Stromes zu einem auf Glas aufgebrachten leitenden Streifen bei der Herstellung von Doppelglasscheiben-Einheiten
AT334554B (de) Vorrichtung zum elektroschlacken-umschmelzen von verzehrbaren elektroden zu blocken
DE2930353A1 (de) Elektroschlacke-umschmelzanlage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI LU SE

17P Request for examination filed

Effective date: 19890114

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MAN GUTEHOFFNUNGSHUETTE AKTIENGESELLSCHAFT

17Q First examination report despatched

Effective date: 19900807

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU SE

REF Corresponds to:

Ref document number: 64513

Country of ref document: AT

Date of ref document: 19910615

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3770798

Country of ref document: DE

Date of ref document: 19910718

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 87116369.7

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: MAN GUTEHOFFNUNGSHUETTE AKTIENGESELLSCHAFT TRANSFER- MAN GUTEHOFFNUNGSHUETTE AKTIENGESELLSCHAFT

Ref country code: CH

Ref legal event code: PUE

Owner name: MAN GUTEHOFFNUNGSHUETTE AKTIENGESELLSCHAFT -DANN A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19981022

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19981023

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19981030

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19981117

Year of fee payment: 12

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991107

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

BERE Be: lapsed

Owner name: SMS SCHLOEMANN-SIEMAG A.G.

Effective date: 19991130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 87116369.7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021104

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20021105

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031106

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20001214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040730

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20061113

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20061124

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20061127

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061130

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20071105