EP0700234B1 - Vorrichtung zum Halten einer selbstbackenden Verbundelektrode eines Lichtbogenofens - Google Patents

Vorrichtung zum Halten einer selbstbackenden Verbundelektrode eines Lichtbogenofens Download PDF

Info

Publication number
EP0700234B1
EP0700234B1 EP95420249A EP95420249A EP0700234B1 EP 0700234 B1 EP0700234 B1 EP 0700234B1 EP 95420249 A EP95420249 A EP 95420249A EP 95420249 A EP95420249 A EP 95420249A EP 0700234 B1 EP0700234 B1 EP 0700234B1
Authority
EP
European Patent Office
Prior art keywords
column
electrode
ferrule
support
electric arc
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.)
Expired - Lifetime
Application number
EP95420249A
Other languages
English (en)
French (fr)
Other versions
EP0700234A1 (de
Inventor
Maurice Sales
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.)
Ferroglobe France SAS
Original Assignee
Pechiney Electrometallurgie SAS
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 Pechiney Electrometallurgie SAS filed Critical Pechiney Electrometallurgie SAS
Publication of EP0700234A1 publication Critical patent/EP0700234A1/de
Application granted granted Critical
Publication of EP0700234B1 publication Critical patent/EP0700234B1/de
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
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H05B7/107—Mountings, supports, terminals or arrangements for feeding or guiding electrodes specially adapted for self-baking 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
    • H05B7/08—Electrodes non-consumable
    • H05B7/085—Electrodes non-consumable mainly consisting of carbon
    • H05B7/09—Self-baking electrodes, e.g. Söderberg type electrodes

Definitions

  • the invention relates to the field of oven electrodes electric arc and, more specifically, electrodes self-cooking, called SODERBERG electrodes, for carbothermal reduction, such as production furnaces metallurgical silicon.
  • this support piece is a column forming a pre-baked carbon or graphite electrode, consisting elements assembled by means of nipples, i.e. double conical thread fittings, made in the same material, and screwed onto the two elements to be assembled.
  • the positioning of the collets of the column does not allow large amplitude displacements. he must therefore frequently reposition the clamps on the column as the electrode is consumed, which contributes to worsening the damage caused to the spine by pliers.
  • the subject of the invention is a device for mounting a self-cooking electrode, fitted with a metal ferrule cylindrical and a central column in graphite or precooked carbon consisting of elements assembled by nipples, not having the disadvantages mentioned above.
  • the central column is suspended from a support which is movable vertically with respect to the ferrule over a length greater than that of the elements.
  • the displacement of the support can be obtained using jacks.
  • the column can be fixed to the mobile support using a piece threaded, integral with the support and the thread of which is identical to that of the assembly nipples of the elements of the column.
  • the composite electrode (1) consists of a ferrule cylindrical metal (2) used to contain the carbonaceous paste introduced at its top and which will gradually cook in going down into the oven.
  • a central column (3) cylindrical of the same axis as the ferrule, is made up of elements identical in pre-baked carbon or graphite, provided at their two ends of tapered and threaded conical holes above the others by nipples (4).
  • Column (3) is retained at its top by a metal part (5) reproducing at its end the thread of the nipples (4).
  • the part (5) is directly screwed onto the upper element of the column (3).
  • This part (5) is supported by a frame (6), the relative position with respect to the shell (2) and the frame (7) of which it is integral, is controlled by two jacks (8) whose stroke is greater than the length of the elements forming the column (3).
  • This assembly allows the electrode (1) to be slid a length equal to or greater than that of an element in column (3) without having to resume fixing between the column (3) and the piece (5).
  • the stroke of the cylinders (8) is sufficient to allow the length of the column to be extended by one element (3) by having to make only one takeover operation on column (3). So the surface of the carbon elements or graphite is not damaged by any kind of tightening and the tensile strength of the column (3) is fully preserved.
  • the upper element of the column (3) is fixed to a part (5) steel finished with a shape identical to that of a nipple (4).
  • Mobile equipment consisting of a chassis (6) supporting the part (5) and jacks (8) allows to support and position the electrode over a length of 1850 mm in acting only on the volume of oil injected into the cylinders.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Furnace Details (AREA)
  • Ceramic Products (AREA)
  • Discharge Heating (AREA)

Claims (3)

  1. Vorrichtung zum Halten einer selbstbackenden Verbundelektrode (1) eines Lichtbogenofens, mit einem Metallrohr (2), einer mittleren Säule (3) aus Graphit oder vorgebranntem Kohlenstoff, die aus durch Nippel (4) miteinander verbundenen Elementen besteht, und einer kohlenstoffhaltigen Paste zwischen Rohr (2) und Säule (3), dadurch gekennzeichnet, daß die Säule (3) an einem Träger (6) hängt, der vertikal zum Rohr auf einer Länge beweglich ist, die größer ist als die Länge jedes Elements.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Relativbewegung des Trägers (6) zur Säule (3) durch Zylinder (8) erfolgt.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Säule (3) am Träger (6) mit einem Gewindeteil (5) befestigt ist, dessen Gewinde dem der Nippel (4) entspricht.
EP95420249A 1994-09-05 1995-09-04 Vorrichtung zum Halten einer selbstbackenden Verbundelektrode eines Lichtbogenofens Expired - Lifetime EP0700234B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9410774 1994-09-05
FR9410774A FR2724219B1 (fr) 1994-09-05 1994-09-05 Dispositif de montage d'une electrode composite a autocuisson pour four electrique a arc

Publications (2)

Publication Number Publication Date
EP0700234A1 EP0700234A1 (de) 1996-03-06
EP0700234B1 true EP0700234B1 (de) 1999-10-13

Family

ID=9466795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95420249A Expired - Lifetime EP0700234B1 (de) 1994-09-05 1995-09-04 Vorrichtung zum Halten einer selbstbackenden Verbundelektrode eines Lichtbogenofens

Country Status (5)

Country Link
US (1) US5577065A (de)
EP (1) EP0700234B1 (de)
DE (1) DE69512732T2 (de)
ES (1) ES2139165T3 (de)
FR (1) FR2724219B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2204425A1 (en) * 1997-05-02 1998-11-02 Skw Canada Inc. Electrode for silicon alloys and silicon metal
SK286447B6 (sk) * 1997-05-02 2008-10-07 Silicium Becancour Inc. Samovypaľujúca elektróda na výrobu silikónových zliatin a silikónového kovu, elektrická oblúková pec a spôsob výroby samovypaľujúcej elektródy
FR2770079B1 (fr) * 1997-10-22 2000-01-28 Action Finances Ind Electrode composite de four electrique de metallurgie
BR9900253A (pt) 1999-02-02 2000-08-29 Companhia Brasileira Carbureto Recipiente de alumìnio e aço inoxidável a formação de eletrodos de autocozimento para a utilização em baixos-fornos elétricos de redução
BR9900252A (pt) 1999-02-02 2000-08-29 Companhia Brasileira Carbureto Recipiente de aço inoxidável para a formação de eletrodos de autocozimento para a utilização em baixos-fornos elétricos de redução
FR2797739B1 (fr) * 1999-08-19 2001-09-21 Invensil Dispositif de montage d'electrode composite a auto-cuisson pour four electrique a arc
WO2019233549A1 (de) * 2018-06-04 2019-12-12 Rheinfelden Carbon Gmbh & Co. Kg Selbstbackende elektrode

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT606568A (de) *
FR488778A (fr) * 1917-02-05 1918-11-14 Det Norske Aktieselskab For Elektrokemisk Industri Procédé de cuisson d'électrodes de charbon
US1579824A (en) * 1924-07-12 1926-04-06 Laurell Axel Hugo Electrode consisting of lengths that can be joined together in a continuous manner
US3524004A (en) * 1968-12-03 1970-08-11 Ohio Ferro Alloys Corp Non-metal reinforced self-baking electrode for electric furnaces
US3819841A (en) * 1973-08-06 1974-06-25 Pennsylvania Engineering Corp Iron-free self-braking electrode
US4349910A (en) * 1979-09-28 1982-09-14 Union Carbide Corporation Method and apparatus for orientation of electrode joint threads
DE3324692A1 (de) * 1983-07-08 1985-01-17 Sigri Elektrographit Gmbh, 8901 Meitingen Verbindung zwischen den abschnitten einer kohlenstoff- oder graphitelektrode
US4575856A (en) * 1984-05-18 1986-03-11 Pennsylvania Engineering Corporation Iron free self baking electrode
US4736384A (en) * 1985-12-23 1988-04-05 Kyoei Steel Ltd. Electrode adding apparatus
US4725161A (en) * 1986-09-05 1988-02-16 Union Carbide Corporation Electrode joint
DE4010353A1 (de) * 1990-03-28 1991-10-02 Mannesmann Ag Verfahren und vorrichtung zum betreiben eines metallurgischen ofens mit selbstbackender elektrode
ES2046098B1 (es) * 1991-10-30 1994-08-01 Espa Ola De Carburos Metalicos Mejoras sobre el proceso de fabricacion en continuo de electrodos libres de impurezas y hierro para hornos de arco electrico.

Also Published As

Publication number Publication date
DE69512732D1 (de) 1999-11-18
US5577065A (en) 1996-11-19
FR2724219A1 (fr) 1996-03-08
EP0700234A1 (de) 1996-03-06
FR2724219B1 (fr) 1996-10-25
ES2139165T3 (es) 2000-02-01
DE69512732T2 (de) 2000-03-02

Similar Documents

Publication Publication Date Title
EP0700234B1 (de) Vorrichtung zum Halten einer selbstbackenden Verbundelektrode eines Lichtbogenofens
FR2464839A1 (fr) Stabilisateur creux pour vehicules
CN108521099A (zh) 一种高压输电线路断股修复捋线装置
CA2165392C (fr) Dispositif de montage d'une electrode composite a autocuisson pour four electrique a arc
FR2445006A1 (fr) Procede pour la fabrication d'une bobine supraconductrice et bobine fabriquee selon ce procede
CN209562041U (zh) 一种信号线缆排布固定装置
EP2665069B1 (de) Hochspannungsstromkabel
JPS60501879A (ja) ア−ク炉複合電極
AU702610B2 (en) Device for mounting a self-baking composite electrode for an electric arc furnace
CN2333479Y (zh) 一种方框链式管道焊接夹具
AU683182B2 (en) Self-baking carbon electrode
FR2519588A1 (fr) Jambe de suspension du type macpherson pour roue menee directrice de vehicules a moteur
DE60033408D1 (de) Elektrische leiter mit eingebauten optischen fasern
EP1077588B1 (de) Selbstbackende Verbundelektroden-Anordnung bestimmt für Lichtbogenofen
CN106567909B (zh) 便于使用的拉线线夹
CN111564802B (zh) 一种抗压防变形的电力金具及其生产方法
CN114992283B (zh) 钢丝绳固定套环
CN219937782U (zh) 一种快速更换绝缘子的装置
CN115411684A (zh) 一种架空输电线路悬垂线夹
EP2687399A1 (de) Aufhängevorrichtung für ein Oberleitungstragseil
CN112821332A (zh) 一种预绞式间隔棒
CN213705672U (zh) 一种新型自行车车架
CN220399190U (zh) 一种铝箔润湿性检测实验装置
JPH07336853A (ja) ねじれ防止ダンパ
CN209830564U (zh) 一种氩弧焊防缺陷装置

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): DE ES GB

17P Request for examination filed

Effective date: 19960422

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19990209

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB

REF Corresponds to:

Ref document number: 69512732

Country of ref document: DE

Date of ref document: 19991118

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19991202

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2139165

Country of ref document: ES

Kind code of ref document: T3

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69512732

Country of ref document: DE

Representative=s name: WITTE, WELLER & PARTNER, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69512732

Country of ref document: DE

Representative=s name: WITTE, WELLER & PARTNER PATENTANWAELTE MBB, DE

Effective date: 20111118

Ref country code: DE

Ref legal event code: R081

Ref document number: 69512732

Country of ref document: DE

Owner name: FERROPEM, FR

Free format text: FORMER OWNER: PECHINEY ELECTROMETALLURGIE, COURBEVOIE, FR

Effective date: 20111118

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: FERROPEM

Effective date: 20120808

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

Ref country code: DE

Payment date: 20140728

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: 20140724

Year of fee payment: 20

Ref country code: ES

Payment date: 20140919

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69512732

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20150903

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: 20150903

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20151229

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150905