WO2011028132A1 - Structure d'enveloppe de cathode - Google Patents
Structure d'enveloppe de cathode Download PDFInfo
- Publication number
- WO2011028132A1 WO2011028132A1 PCT/NO2010/000327 NO2010000327W WO2011028132A1 WO 2011028132 A1 WO2011028132 A1 WO 2011028132A1 NO 2010000327 W NO2010000327 W NO 2010000327W WO 2011028132 A1 WO2011028132 A1 WO 2011028132A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accordance
- cathode structure
- shell
- web
- horizontal
- Prior art date
Links
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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
-
- 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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/085—Cell construction, e.g. bottoms, walls, cathodes characterised by its non electrically conducting heat insulating parts
Definitions
- the present invention relates to a cathode structure for an aluminium electrolysis cell.
- Electrolysis cells for aluminium production based upon the Hall-Heroult principle commonly have prebaked anodes in its upper part and a cathode structure in its lower part.
- the cathode structure comprises mainly an outer steel shell provided with vertical stiffeners and horizontal beams at its outside which are made out of steel too, the cathode structure further being provided with layers of protective and insulating material at its inside.
- In the mainly horizontal bottom part of the cathode structure there is commonly arranged electronic conducting carbon blocks.
- the cathode structure when in operation, contains a molten aluminium metal pad and above that molten bath material having temperatures that can be approximately 970° or even higher.
- the main feature of the outer steel shell including its stiffeners and beams is to maintain the geometric and dimensional configuration of the cathode structure during its lifetime of operation. Due to continuous chemical swelling of the cathode and lining as well the high temperatures involved and the effect this has on the properties of lining and steel components involved, several attempts have been carried out to make the steel shell structure and the configuration of stiffeners able to withstand this influence in a long lasting manner.
- appropriate cooling may relieve some of the harmful effects of the temperature in the steel shell to prevent aging of the steel and collapsing of mechanical properties like strength, elasticity, etc.
- stiffening structure in a manner that allows surrounding air to pass close to the shell structure.
- US 4087345 disclose a cathode structure designed to be cooled by natural cooling and where there are arranged ducts or passages between vertical stiffeners outside the cathode shell for allowing an upward draught of air.
- Horizontal beams arranged as a part of the stiffening structure are arranged onto the outside of the vertical stiffeners.
- US 4,322,282 disclose a tank for an electrolytic cell provided with horizontal movable hollow sections secured to the sidewalls of the metal tank. The sections bend inwards as a result of the temperature gradient across them such that they counter a pressure on the sidewalls due to the dilation of the cell contents, thus acting as a thermo-spring. There is provided holes in opposing horizontal walls of the hollow section so as to reduce thermal conduction within the sections and thereby maintain the temperature gradient therein. The circulation of air which results, helps further to achieve and maintain the temperature difference.
- At least one horizontal web is arranged in contact with the steel shell without intermediate vertical members that may, as a result of thermal loads, alter their geometric configuration.
- the web has apertures facing the shell.
- Fig. 1 discloses a three dimensional view of a quart pot shell structure without the inner walls for better visibility
- Fig. 2 discloses a three dimensional view of an end structure of the pot shell shown in Figure 1 without end wall and deck plate,
- Fig. 3 discloses air flow inside one hollow section of prior art type
- Fig. 4 discloses air flow in accordance with the present invention, through a lower and upper web.
- a quart of a pot shell structure 1 where the steel plates are not shown.
- One half of an end wall 2 and correspondingly one half of a side wall 3 as well as a quart of a bottom 4 haven been disclosed.
- the end wall comprises as its main constituents a deck plate 7, vertical stiffeners 8, 8', 8", 8"', one horizontal web 9 and a reinforcing bracing flange 10.
- the side wall 3 comprises a deck plate 11 , vertical structural elements 6, 6', 6", 6"', 6"", 6""', 6""" which in fact is a part of a cradle structure 12, together with corresponding horizontal beams 5, 5', 5", 5"', 5"", 5""', 5"”” that are fixedly interconnected with the said vertical structural elements. Further, the side wall 3 comprises a plurality of vertical stiffeners 13, 14, 15 which additionally acts as cooling fins.
- Figure 2 discloses in a 3 D view the end wall structure 2 as partly shown in Fig. 1 , here in its full extension and where the deck plate has been removed.
- the reinforcing bracing flange 10 represents the outermost element of the end wall structure.
- the bracing flange is further attached to the side walls and the vertical structural element 6""" of the cradle structure closest to this end.
- the mainly horizontal web 9 which outer periphery fits the shape of the bracing web,
- the end wall structure further comprises vertical stiffeners 8, 8', 8", 8"', 8"", 8"'", 8""".
- the number of stiffeners is a function of the shell width and anticipating inner forces.
- These stiffeners are integrated in the horizontal web 9 by any appropriate manufacturing method.
- the web 9 can have slots adapted to the stiffeners that are subsequently fixed to the web, for instance by welding.
- One other method can be to manufacture the web 9 in appropriate pieces or plates that abut the stiffeners and which subsequently are fixed to the stiffeners.
- the vertical stiffeners are provided with a flange at their outer side. A part of such a flange is indicated at 8a' in stiffener 8', One purpose of this flange is to enhance bending and torsion stiffness in the stiffener with regard to occurring loads.
- the inner side of the stiffener is fixed to the steel plate(s) of the pot shell by appropriate means, for instance welding.
- the stiffeners are connected to an extension of the bottom plate of the shell (not shown), to enhance stiffness in the end wall.
- the horizontal web 9 is provided with several holes or apertures 16, 16', 16", 16"', 16"", 16 , 16 , 16"""'.
- apertures are made sufficiently wide and deep to reduce the presence of the horizontal web with regard to ventilation.
- the apertures are made semi-circular or semi-elliptical or polygonal and are represented by discrete cutouts at the side edge of the web.
- the bridging or protruding parts of the web between neighbouring recesses are connected to the pot shell by appropriate means, for instance welding.
- FIG 2 there can be seen vertical fins 17, 17', 17", 17"', 17"", 17""', 17""", 17'””” passing through corresponding apertures.
- the purpose of the fins is primary to enhance cooling of the pot shell by conductance, but additional effects are guiding the flow of air as well as additional stiffening of the pot shell plates.
- the fins are advantageously fixed to the pot shell by appropriate means such as welding.
- the end wall structure may have two horizontal webs of the type 9 that are spaced apart (not shown).
- FIG. 3 An air flow pattern in accordance with such arrangement is shown in Fig. 3. It can clearly be seen that the air flow is directed upwards along the shell wall and through the ventilation holes or apertures of type 16.
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)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN1944DEN2012 IN2012DN01944A (fr) | 2009-09-07 | 2010-09-03 | |
CA2773127A CA2773127C (fr) | 2009-09-07 | 2010-09-03 | Structure d'enveloppe de cathode |
EA201200453A EA021620B1 (ru) | 2009-09-07 | 2010-09-03 | Конструкция катодного кожуха |
EP10814008.8A EP2475807B1 (fr) | 2009-09-07 | 2010-09-03 | Structure d'enveloppe de cathode |
NO10814008A NO2475807T3 (fr) | 2009-09-07 | 2010-09-03 | |
AU2010290196A AU2010290196B2 (en) | 2009-09-07 | 2010-09-03 | Cathode shell structure |
CN201080039921.9A CN102549198B (zh) | 2009-09-07 | 2010-09-03 | 阴极外壳结构 |
NZ598998A NZ598998A (en) | 2009-09-07 | 2010-09-03 | Cathode shell structure |
BR112012005051-6A BR112012005051B1 (pt) | 2009-09-07 | 2010-09-03 | Estrutura de catodo para uma célula de eletrólise |
ZA2012/01656A ZA201201656B (en) | 2009-09-07 | 2012-03-06 | Cathode shell structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20092968 | 2009-09-07 | ||
NO20092968 | 2009-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011028132A1 true WO2011028132A1 (fr) | 2011-03-10 |
Family
ID=43649496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2010/000327 WO2011028132A1 (fr) | 2009-09-07 | 2010-09-03 | Structure d'enveloppe de cathode |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP2475807B1 (fr) |
CN (1) | CN102549198B (fr) |
AR (1) | AR078338A1 (fr) |
AU (1) | AU2010290196B2 (fr) |
BR (1) | BR112012005051B1 (fr) |
CA (1) | CA2773127C (fr) |
EA (1) | EA021620B1 (fr) |
IN (1) | IN2012DN01944A (fr) |
NO (1) | NO2475807T3 (fr) |
NZ (1) | NZ598998A (fr) |
WO (1) | WO2011028132A1 (fr) |
ZA (1) | ZA201201656B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019193436A1 (fr) * | 2018-04-03 | 2019-10-10 | Dubai Aluminium Pjsc | Conception de caisson renforcé d'une cellule électrolytique appropriée pour le processus de type hall-héroult |
RU2703758C2 (ru) * | 2014-11-21 | 2019-10-22 | Хэтч Лтд. | Низкопрофильный катодный кожух алюминиевого электролиза и способ повышения производительности линии алюминиевых электролизеров |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO20141572A1 (no) * | 2014-12-23 | 2016-06-24 | Norsk Hydro As | En modifisert elektrolysecelle og en fremgangsmåte for modifisering av samme |
CA2985653C (fr) * | 2015-05-13 | 2022-10-25 | Pultrusion Technique Inc. | Cuve d'electrolyse comprenant des elements de renforcement |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU549513A1 (ru) * | 1975-06-03 | 1977-03-05 | Всесоюзный научно-исследовательский и проектный институт алюминиевой, магниевой и электродной промышленности | Катодный кожух электролизера дл получени алюмини |
US4087345A (en) * | 1977-07-19 | 1978-05-02 | Ardal Og Sunndal Verk A.S. | Potshell for electrolytic aluminum reduction cell |
SU1560634A1 (ru) * | 1987-10-21 | 1990-04-30 | В.Г.Жучков, А.В.Степень, В.Е.Жучкова и О.Г.Шадрина | Катодный кожух алюминиевого электролизера |
SU1669997A2 (ru) * | 1988-02-18 | 1991-08-15 | Государственный Ремонтно-Строительный Специализированный Трест По Ремонту, Монтажу Технологического Оборудования "Сибцветметремонт" | Катодный кожух алюминиевого электролизера |
CN1442513A (zh) * | 2003-04-10 | 2003-09-17 | 沈阳铝镁设计研究院 | 一种加强大型铝电解槽槽壳散热的方法 |
CN2644436Y (zh) * | 2003-07-18 | 2004-09-29 | 中国铝业股份有限公司 | 铝电解槽端头槽壳新型通风结构 |
RU2294404C1 (ru) * | 2005-09-20 | 2007-02-27 | Открытое акционерное общество "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" (ОАО "СибВАМИ") | Катодное устройство алюминиевого электролизера |
RU2308547C1 (ru) * | 2005-12-22 | 2007-10-20 | Общество с ограниченной ответственностью "Русская инжиниринговая компания" | Катодный кожух алюминиевого электролизера |
CN201010697Y (zh) * | 2007-04-06 | 2008-01-23 | 东北大学设计研究院(有限公司) | 一种大型铝电解槽通风散热装置 |
-
2010
- 2010-09-03 AU AU2010290196A patent/AU2010290196B2/en active Active
- 2010-09-03 CN CN201080039921.9A patent/CN102549198B/zh active Active
- 2010-09-03 BR BR112012005051-6A patent/BR112012005051B1/pt active IP Right Grant
- 2010-09-03 IN IN1944DEN2012 patent/IN2012DN01944A/en unknown
- 2010-09-03 NZ NZ598998A patent/NZ598998A/en unknown
- 2010-09-03 NO NO10814008A patent/NO2475807T3/no unknown
- 2010-09-03 WO PCT/NO2010/000327 patent/WO2011028132A1/fr active Application Filing
- 2010-09-03 EA EA201200453A patent/EA021620B1/ru not_active IP Right Cessation
- 2010-09-03 EP EP10814008.8A patent/EP2475807B1/fr active Active
- 2010-09-03 CA CA2773127A patent/CA2773127C/fr active Active
- 2010-09-06 AR ARP100103263 patent/AR078338A1/es active IP Right Grant
-
2012
- 2012-03-06 ZA ZA2012/01656A patent/ZA201201656B/en unknown
Patent Citations (9)
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SU549513A1 (ru) * | 1975-06-03 | 1977-03-05 | Всесоюзный научно-исследовательский и проектный институт алюминиевой, магниевой и электродной промышленности | Катодный кожух электролизера дл получени алюмини |
US4087345A (en) * | 1977-07-19 | 1978-05-02 | Ardal Og Sunndal Verk A.S. | Potshell for electrolytic aluminum reduction cell |
SU1560634A1 (ru) * | 1987-10-21 | 1990-04-30 | В.Г.Жучков, А.В.Степень, В.Е.Жучкова и О.Г.Шадрина | Катодный кожух алюминиевого электролизера |
SU1669997A2 (ru) * | 1988-02-18 | 1991-08-15 | Государственный Ремонтно-Строительный Специализированный Трест По Ремонту, Монтажу Технологического Оборудования "Сибцветметремонт" | Катодный кожух алюминиевого электролизера |
CN1442513A (zh) * | 2003-04-10 | 2003-09-17 | 沈阳铝镁设计研究院 | 一种加强大型铝电解槽槽壳散热的方法 |
CN2644436Y (zh) * | 2003-07-18 | 2004-09-29 | 中国铝业股份有限公司 | 铝电解槽端头槽壳新型通风结构 |
RU2294404C1 (ru) * | 2005-09-20 | 2007-02-27 | Открытое акционерное общество "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" (ОАО "СибВАМИ") | Катодное устройство алюминиевого электролизера |
RU2308547C1 (ru) * | 2005-12-22 | 2007-10-20 | Общество с ограниченной ответственностью "Русская инжиниринговая компания" | Катодный кожух алюминиевого электролизера |
CN201010697Y (zh) * | 2007-04-06 | 2008-01-23 | 东北大学设计研究院(有限公司) | 一种大型铝电解槽通风散热装置 |
Non-Patent Citations (5)
Title |
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DATABASE WPI Week 197801, Derwent World Patents Index; AN 1978-01579A, XP003027918 * |
DATABASE WPI Week 199050, Derwent World Patents Index; AN 1990-374561, XP003027915 * |
DATABASE WPI Week 199229, Derwent World Patents Index; AN 1992-240410, XP003027916 * |
DATABASE WPI Week 200819, Derwent World Patents Index; AN 2008-C52501, XP003027917 * |
I. EICK ET AL: "Dimensioning of Cooling Fins for High-Amperage Reduction Cells", TMS LIGHT METALS, 1999, pages 339 - 345, XP008161515 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2703758C2 (ru) * | 2014-11-21 | 2019-10-22 | Хэтч Лтд. | Низкопрофильный катодный кожух алюминиевого электролиза и способ повышения производительности линии алюминиевых электролизеров |
AU2015349579B2 (en) * | 2014-11-21 | 2020-10-01 | Hatch Ltd. | Low-profile aluminum cell potshell and method for increasing the production capacity of an aluminum cell potline |
US10889906B2 (en) | 2014-11-21 | 2021-01-12 | Hatch Ltd. | Low-profile aluminum cell potshell and method for increasing the production capacity of an aluminum cell potline |
WO2019193436A1 (fr) * | 2018-04-03 | 2019-10-10 | Dubai Aluminium Pjsc | Conception de caisson renforcé d'une cellule électrolytique appropriée pour le processus de type hall-héroult |
Also Published As
Publication number | Publication date |
---|---|
CA2773127C (fr) | 2016-11-22 |
AU2010290196B2 (en) | 2015-12-17 |
BR112012005051B1 (pt) | 2019-05-21 |
CN102549198B (zh) | 2015-12-09 |
NO2475807T3 (fr) | 2018-07-28 |
AU2010290196A1 (en) | 2012-03-29 |
IN2012DN01944A (fr) | 2015-08-21 |
ZA201201656B (en) | 2012-11-28 |
EP2475807B1 (fr) | 2018-02-28 |
CA2773127A1 (fr) | 2011-03-10 |
AR078338A1 (es) | 2011-11-02 |
CN102549198A (zh) | 2012-07-04 |
EP2475807A1 (fr) | 2012-07-18 |
NZ598998A (en) | 2014-01-31 |
BR112012005051A2 (pt) | 2016-05-03 |
EA021620B1 (ru) | 2015-07-30 |
EP2475807A4 (fr) | 2016-04-13 |
EA201200453A1 (ru) | 2012-09-28 |
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