EP0700234B1 - Dispositif de montage d'une électrode composite à autocuisson pour four électrique à arc - Google Patents
Dispositif de montage d'une électrode composite à autocuisson pour four électrique à arc Download PDFInfo
- 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
Links
- 239000002131 composite material Substances 0.000 title claims description 4
- 238000010891 electric arc Methods 0.000 title claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 210000002445 nipple Anatomy 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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)
- Discharge Heating (AREA)
- Ceramic Products (AREA)
Description
Claims (3)
- Dispositif de montage d'une électrode composite (1) à autocuisson pour four électrique à arc, comprenant une virole métallique (2), une colonne centrale(3) en graphite ou en carbone précuit constituée d'éléments assemblés par des nipples (4) et une pâte carbonée entre la virole (2) et la colonne (3), caractérisé en ce que la colonne (3) est suspendue à un support (6) qui est mobile dans le sens vertical par rapport à la virole (2) sur une longueur supérieure à celle de chacun des éléments.
- Dispositif selon la revendication 1, caractérisé en ce que le mouvement relatif du support (6) par rapport à la colonne (3) est obtenu à l'aide de vérins (8).
- Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que la colonne (3) est fixée au support (6) à l'aide d'une pièce filetée (5) dont le filetage est identique à celui des nipples (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9410774A FR2724219B1 (fr) | 1994-09-05 | 1994-09-05 | Dispositif de montage d'une electrode composite a autocuisson pour four electrique a arc |
| FR9410774 | 1994-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0700234A1 EP0700234A1 (fr) | 1996-03-06 |
| EP0700234B1 true EP0700234B1 (fr) | 1999-10-13 |
Family
ID=9466795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95420249A Expired - Lifetime EP0700234B1 (fr) | 1994-09-05 | 1995-09-04 | Dispositif de montage d'une électrode composite à autocuisson pour four électrique à arc |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5577065A (fr) |
| EP (1) | EP0700234B1 (fr) |
| DE (1) | DE69512732T2 (fr) |
| ES (1) | ES2139165T3 (fr) |
| FR (1) | FR2724219B1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL189321B1 (pl) * | 1997-05-02 | 2005-07-29 | Silicium Becancour Inc | Elektroda samo-spiekająca się na miejscu, do wytwarzania krzemu i stopów z krzemem w elektrycznym piecu łukowym |
| CA2204425A1 (fr) * | 1997-05-02 | 1998-11-02 | Skw Canada Inc. | Electrode pour alliages de silicone et de metal de silicone |
| 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 (fr) * | 2018-06-04 | 2019-12-12 | Rheinfelden Carbon Gmbh & Co. Kg | Électrode à auto-cuisson |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT606568A (fr) * | ||||
| 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. |
-
1994
- 1994-09-05 FR FR9410774A patent/FR2724219B1/fr not_active Expired - Lifetime
-
1995
- 1995-08-14 US US08/514,735 patent/US5577065A/en not_active Expired - Lifetime
- 1995-09-04 EP EP95420249A patent/EP0700234B1/fr not_active Expired - Lifetime
- 1995-09-04 ES ES95420249T patent/ES2139165T3/es not_active Expired - Lifetime
- 1995-09-04 DE DE69512732T patent/DE69512732T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69512732D1 (de) | 1999-11-18 |
| FR2724219B1 (fr) | 1996-10-25 |
| US5577065A (en) | 1996-11-19 |
| EP0700234A1 (fr) | 1996-03-06 |
| ES2139165T3 (es) | 2000-02-01 |
| DE69512732T2 (de) | 2000-03-02 |
| FR2724219A1 (fr) | 1996-03-08 |
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