EP1853751A1 - Current busbar - Google Patents
Current busbarInfo
- Publication number
- EP1853751A1 EP1853751A1 EP05710952A EP05710952A EP1853751A1 EP 1853751 A1 EP1853751 A1 EP 1853751A1 EP 05710952 A EP05710952 A EP 05710952A EP 05710952 A EP05710952 A EP 05710952A EP 1853751 A1 EP1853751 A1 EP 1853751A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode body
- conical
- bodies
- current busbar
- during operation
- 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.)
- Withdrawn
Links
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004411 aluminium Substances 0.000 claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 239000000126 substance Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 239000004035 construction material Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 210000002445 nipple Anatomy 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000009626 Hall-Héroult process Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/16—Electric current supply devices, e.g. bus bars
Definitions
- the present invention relates to current bus bars for anodes or cathodes for use in production of aluminium by electrolysis of alumina in an electrolysis bath in an electrolysis cell.
- the function of the current busbars are to deliver current to or from the electrode body, to conduct heat away from the electrolysis bath, and to contribute to the mechanical strength and connection.
- the current busbars are connected directly or via further means to an outer current circuit.
- patent publication WO ,02/42525 various embodiments of current busbars for anodes and cathodes are illustrated, with associated description of essential features for current busbars.
- current busbars having large heat conduction away from the electrolysis bath.
- the current busbar is distinguished by comprising both or one of the features as follows: ends or sections that during operation shall be within the electrode body are formed as one or more in substance horizontally oriented conical bodies with largest horizontal cross section diameter within the electrode body, such that by sliding said bodies axially into one ore more adapted conical holes in the electrode body said bodies will be embedded and kept into the electrode body, and said conical bodies or elements connected thereto are manufactured from steel or steel over a copper core, and are provided with one or more in substance horizontally formed cylindrical or conical grooves with largest horizontal cross section dimension within said grooves, such that by sliding in correspondingly formed copper rails on the external parts of the busbar, said bodies and rails are releasably joined.
- conical body it is meant an elongated body having increasing or decreasing cross section dimensions over a substantial part of its length, preferably the full length. The corresponding is true for conical holes.
- a cylindrical groove or body it is meant an even cross section over a substantial part of the length, preferably all the length except from optional tapering or grounding off at the ends. Cylindrical does not necessarily mean round cross section, the only requirement is that the cross section is the same along the length.
- the cross section therefore can be triangular, four-sided, five-sided, round, elliptical, T-formed or take any other form, which also is true for conical bodies, provided that the further distinguishing features are maintained. It is also important to be aware of that the cylindrical body can extend in vertical direction, such that a part of the cylinder body, along the full or parts of its length, can extend out for example from the electrode body.
- the cross section of the parts that are to be built into the electrode body has form of a circle, triangle or quadrangle under or below a high and narrow rectangle, such that the largest horizontal dimension of the circle, triangle or quadrangle is at least four times larger than the horizontal dimension of the rectangle.
- the current busbar according to the invention is preferably formed such that different materials in the longitudinal direction of the busbar are welded together by linear friction welding, surfacing friction welding, rotation friction welding, induction welding, laser welding or electron beam welding, because of good electrical, thermal and mechanical contact.
- the current busbar according to the invention can preferably be manufactured with pure aluminium, aluminium alloy, copper or copper alloy used as construction material in the parts furthest away from the electrode body and in a distance close to or within the electrode body, with a protective lining of steel for parts within or close to the electrode body. Thereby the heat conduction is maximized while the electrical resistance is minimized and the electrolysis cell can be operated at high amperage.
- the current busbar according to the invention is preferably either an anode hanger or a cathode steel.
- the current busbars according to the invention is preferably surface treated with wolfram, for increased life.
- the embodiment of the current busbar with only the distinguishing feature with the copper rails can include traditional nipples as the ends or sections that during operation are within the electrode body.
- an electrode body is provided, distinguished in that it in substance consists of carbon and has adapted grooves for mounting of the current busbars according to the present invention.
- the conical holes in the electrode body are preferably slightly longer than the conical bodies, such that said conical bodies will fit into said conical holes even after some wearing out.
- an electrode is provided, distinguished in that it comprises current busbars according to the present invention joined with electrode body according to the present invention.
- FIG. 1 The Figures la and lb illustrate an anode hanger according to the present invention.
- Figure 2 illustrates another embodiment of an anode hanger according to the present invention.
- Figure 3 illustrates a third embodiment of an anode hanger according to the present invention.
- Figures 1 A and IB illustrate an anode hanger according to the present invention, viewed orthogonal to the conical body 1, for Figure 1A, and along the longitudinal axis of the conical body, for Figure IB, respectively.
- the conical body is joined with an electrode body 2 by being slided into a conical groove 3 with form corresponding to the conical body.
- the largest horizontal cross section dimension for the conical body is within the electrode body, such that the conical body as joined with the electrode body during operation is fastened and kept in place into the electrode body.
- the conical body is on the upper side fastened into a narrower element, with cross section form as a rectangle with far smaller horizontal dimension than the conical body, such that even though the groove in the electrode body is upwardly open along all or parts of the length of the conical body, said conical body cannot escape from the electrode body during operation.
- an inner core of copper 4 is provided in the conical body, the rectangle and an above positioned connecting beam. Outside the copper is a steel lining 5.
- the upper part of the anode hanger is formed by an aluminium part 6, joined with the copper by friction welding.
- copper and aluminium is used in a large extent, which is preferable with respect to thermal and electrical conductivity.
- the whole anode hanger could be prepared by steel, but out of consideration to thermal and electrical conductivity preferably copper and optionally aluminium are used extensively.
- ribs can be provided in addition to using increased dimension for the different parts of the anode hanger.
- Figure 2 illustrates another embodiment of an anode hanger according to the invention, more specifically an anode hanger where a copper rail 7 is arranged to be slided into a correspondingly formed groove in a cylindrical steel body 8 that is to be embedded into the electrode body.
- the copper rail and the groove are formed with tolerances such that the copper rail relatively easy can be slided into the groove in the steel body at room temperature.
- FIG. 3 where a further embodiment of an anode hanger according to the invention is illustrated, more specifically a steel nipple 9 with groove for sliding in of a copper rail 7 is illustrated. A number of steel nipples can be passed into the. copper rail 7.
- the cylindrical steel body 8 and steel nipples 9 could be replaced with respect to a conical body of massive steel or with steel lining around a copper core, with grooves for fastening of the copper rail, with the groove either directly into the conical body or above, for example in a connecting beam.
- the most preferred embodiment of the invention (not illustrated) comprises both a conical body and fastening to the above part of the anode hanger by use of a copper rail, because said embodiment includes all the advantages of the invention.
- Example An anode hanger with a conical section embedded into the electrode body illustrates some of the advantages of the invention.
- the cylinder section has length
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Electroplating Methods And Accessories (AREA)
- Discharge Heating (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20040762A NO321709B1 (no) | 2004-02-20 | 2004-02-20 | Stromskinne, elektrodemasse og elektrode |
| PCT/NO2005/000056 WO2005080641A1 (en) | 2004-02-20 | 2005-02-16 | Current busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1853751A1 true EP1853751A1 (en) | 2007-11-14 |
Family
ID=34793442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05710952A Withdrawn EP1853751A1 (en) | 2004-02-20 | 2005-02-16 | Current busbar |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20090127126A1 (ru) |
| EP (1) | EP1853751A1 (ru) |
| AU (1) | AU2005215562B2 (ru) |
| CA (1) | CA2586786A1 (ru) |
| DE (1) | DE112005003212T5 (ru) |
| IS (1) | IS8641A (ru) |
| NO (1) | NO321709B1 (ru) |
| RU (1) | RU2394116C2 (ru) |
| WO (1) | WO2005080641A1 (ru) |
| ZA (1) | ZA200703577B (ru) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6444471A (en) * | 1987-08-11 | 1989-02-16 | Fujitsu Ltd | Toner supply mechanism |
| US8514476B2 (en) | 2008-06-25 | 2013-08-20 | View, Inc. | Multi-pane dynamic window and method for making same |
| US8313622B2 (en) * | 2010-07-09 | 2012-11-20 | Rsr Technologies, Inc. | Electrochemical anodes having friction stir welded joints and methods of manufacturing such anodes |
| US11635666B2 (en) | 2012-03-13 | 2023-04-25 | View, Inc | Methods of controlling multi-zone tintable windows |
| US9341912B2 (en) | 2012-03-13 | 2016-05-17 | View, Inc. | Multi-zone EC windows |
| FR3016897B1 (fr) * | 2014-01-27 | 2017-08-04 | Rio Tinto Alcan Int Ltd | Ensemble anodique et procede de fabrication associe. |
| NO341533B1 (no) * | 2014-12-30 | 2017-12-04 | Storvik As | Anodeåk |
| RU2636545C1 (ru) * | 2017-01-09 | 2017-11-23 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Ошиновка анодная алюминиевого электролизера с обожженными анодами |
| CN110029362B (zh) * | 2019-04-22 | 2020-05-19 | 贵州铝城铝业原材料研究发展有限公司 | 一种分体式填充块连续预焙阳极炭块 |
| CN110029363B (zh) * | 2019-04-22 | 2020-05-19 | 贵州铝城铝业原材料研究发展有限公司 | 一种分体式独立炭碗、超长填充块结构连续预焙阳极炭块 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE757944A (fr) * | 1969-10-24 | 1971-04-01 | Alusuisse | Assemblage de tiges avec des pattes d'electrode par soudage |
| DE2349151A1 (de) * | 1973-09-29 | 1975-04-10 | Vaw Ver Aluminium Werke Ag | Vorrichtung zum verbinden von stromschienen aus aluminium oder kupfer mit stromleitern aus stahl bei vorzugsweise aluminiumelektrolyseoefen |
| AU2322284A (en) * | 1983-01-31 | 1984-08-02 | Swiss Aluminium Ltd. | Means of anchorage of anode joins in a carbon anode |
| NO832769L (no) * | 1983-07-23 | 1985-02-25 | Ardal Og Sunndal Verk | Fremgangsmaate og anordning for aa redusere karbon-tap fra anoder ved fremstilling av aluminium ved elektrolytisk smelting |
| AUPQ218899A0 (en) * | 1999-08-13 | 1999-09-02 | Jakovac, Vjekoslav | Anode assembly comprising separation of electrical and mechanical functions of the assembly |
| GB2371055A (en) * | 2001-01-15 | 2002-07-17 | Innovation And Technology Alum | Anode for electrolysis of aluminium |
-
2004
- 2004-02-20 NO NO20040762A patent/NO321709B1/no not_active IP Right Cessation
-
2005
- 2005-02-16 RU RU2007121270/02A patent/RU2394116C2/ru not_active IP Right Cessation
- 2005-02-16 ZA ZA200703577A patent/ZA200703577B/xx unknown
- 2005-02-16 CA CA002586786A patent/CA2586786A1/en not_active Abandoned
- 2005-02-16 DE DE112005003212T patent/DE112005003212T5/de not_active Withdrawn
- 2005-02-16 AU AU2005215562A patent/AU2005215562B2/en not_active Ceased
- 2005-02-16 WO PCT/NO2005/000056 patent/WO2005080641A1/en active Application Filing
- 2005-02-16 US US11/791,423 patent/US20090127126A1/en not_active Abandoned
- 2005-02-16 EP EP05710952A patent/EP1853751A1/en not_active Withdrawn
-
2007
- 2007-05-03 IS IS8641A patent/IS8641A/is unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005080641A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2586786A1 (en) | 2005-09-01 |
| NO321709B1 (no) | 2006-06-26 |
| RU2007121270A (ru) | 2008-12-20 |
| NO20040762L (no) | 2005-08-22 |
| RU2394116C2 (ru) | 2010-07-10 |
| NO20040762D0 (no) | 2004-02-20 |
| DE112005003212T5 (de) | 2008-04-10 |
| AU2005215562A1 (en) | 2005-09-01 |
| ZA200703577B (en) | 2008-08-27 |
| AU2005215562B2 (en) | 2010-05-27 |
| WO2005080641A1 (en) | 2005-09-01 |
| US20090127126A1 (en) | 2009-05-21 |
| IS8641A (is) | 2007-05-03 |
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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 |
|
| 17P | Request for examination filed |
Effective date: 20070516 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE IS |
|
| D18D | Application deemed to be withdrawn (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20090901 |