EP1672099A2 - Dispositif de séparation des anodes de leur barre d'anode - Google Patents

Dispositif de séparation des anodes de leur barre d'anode Download PDF

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Publication number
EP1672099A2
EP1672099A2 EP05027331A EP05027331A EP1672099A2 EP 1672099 A2 EP1672099 A2 EP 1672099A2 EP 05027331 A EP05027331 A EP 05027331A EP 05027331 A EP05027331 A EP 05027331A EP 1672099 A2 EP1672099 A2 EP 1672099A2
Authority
EP
European Patent Office
Prior art keywords
anode
impact
fork
yoke
impact fork
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
EP05027331A
Other languages
German (de)
English (en)
Other versions
EP1672099B1 (fr
EP1672099A3 (fr
Inventor
Hardy Nagel
Roland Anklam
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.)
Metso Outotec Oyj
Original Assignee
Outotec Oyj
Outokumpu Oyj
Outokumpu Technology Oyj
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 Outotec Oyj, Outokumpu Oyj, Outokumpu Technology Oyj filed Critical Outotec Oyj
Publication of EP1672099A2 publication Critical patent/EP1672099A2/fr
Publication of EP1672099A3 publication Critical patent/EP1672099A3/fr
Application granted granted Critical
Publication of EP1672099B1 publication Critical patent/EP1672099B1/fr
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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
    • C25C3/12—Anodes
    • C25C3/125—Anodes based on carbon

Definitions

  • the invention is directed to a device for the careful separation of anode blocks from their anode rods in the line of molten phase electrolysis for the production of aluminium.
  • the anode blocks are suspended with their fastening holes formed in the upper side by means of annular gap filling metal bushes to their bottom stub-like anode rod ends that have been formed to a yoke.
  • anode blocks for their use in molten phase electrolysis for the production of aluminium the anode blocks have to be firmly joined to power supply rods and/or the so-called anode rods.
  • the bottom ends of the anode rods which mostly have the form of a yoke with two, three or four adjacently arranged rod ends are introduced from above into correspondingly pre-shaped recesses of the anode block and the remaining gaps and/or cavities in the recesses are then filled with molten iron.
  • bushes are formed around the anode rod ends - also known as stubs - which ensure not only mechanical stability of the connection between anode rod/anode block but also a good electric conductivity from the anode rod to the anode block. After solidification of the cast metal a firm bonding is established between the bush and the anode rod end as well as between the bush and the anode block.
  • the problem to be solved by the invention is to create a device by which not yet consumed anode blocks can be mechanically separated from the yoke ends of their anode rods after the occurrence of imperfect bushes, i.e. by such careful manner that both the anode block and the anode rod each remain undamaged and can be used again.
  • the careful separation of anode blocks from their anode rod yoke end is achieved according to the invention by means of a device with an impact fork featuring bottom prongs which can be introduced into the gaps between the anode rod yoke and the upper side of the anode block suspended from the yoke.
  • the fork prongs have been arranged at the bottom side of at least one impact fork mass body which can be moved vertically upward and downward with a certain stroke above the anode rod yoke.
  • This impact stroke of the impact fork corresponds to the distance between the fork prongs and the yoke bottom side (bottom position of the impact fork) and/or the distance between the upper side of the yoke and the bottom side of the impact fork mass body (top position of the impact fork).
  • the impact stroke length has been adjusted such that upon the downward stroke the fork prongs just do not touch the upper side of the anode block suspended from the anode rod yoke.
  • the impact fork is periodically lifted by the impact stroke length mentioned above with the aid of a lifting cylinder of the device according to the invention and dropped by the effect of gravity.
  • the impact fork strikes the anode rod yoke from below and during the downward movement from above while the anode block remains positioned on the base formed as support of the device according to the invention.
  • the stubs of the anode rod yoke are loosened in the fastening holes of the anode block.
  • Fig. 1 shows an anode block 10 with three fastening holes formed in its upper side in which correspondingly three stubs 11, 12, 13 of the bottom end of an anode rod 15 formed to a yoke 14 have been introduced.
  • the annular-shaped gaps between the stubs and the fastening holes have been filled with molten iron to obtain metal bushes 16.
  • the device according to the invention offers the possibility to have the anode block 10 carefully separated from the anode rod yoke 14.
  • the device according to the invention features a frame 17 with a lower base 18 and an upper cross beam 19.
  • Anode 10 with its anode rod 15 is placed on base 18.
  • An impact fork that can be moved upward and downward in the device engages with its two bottom prongs 20, 21 shown in the typical configuration in the gaps between yoke 14 and the upper side of anode block 10.
  • the fork prongs 20, 21 have been arranged at the bottom side of an impact fork mass body 22 which can be moved upward and downward above the anode rod yoke 14 by a lifting cylinder 23 engaging the upper side of the impact fork mass body 22 which cylinder has been linked with its upper end to the top cross beam 19 of machine frame 17. This means that the impact fork can be periodically lifted by means of the lifting cylinder and the impact fork dropped simply by gravity after every lifting cycle.
  • impact stroke 24 of the impact fork corresponds to the distance between fork prongs 20, 21 and the underside of yoke 14 (bottom position of the impact fork) and/or the distance between the upper side of yoke 14 and the bottom side of the impact fork mass body 22 (top position of the impact fork as shown in Figs. 1 to 3).
  • the impact fork strikes anode rod yoke 14 during the upward stroke from below and during the downward stroke from above.
  • the impact intensity of lifting cylinder 23 can even be adjusted such that the impact intensity of the impact fork is greater during the upward stroke than during the downward stroke.
  • yoke 14 projects more and more from anode block 10 until as shown in Fig. 3 anode rod 15 with yoke 14 and bushes 16 have been completely separated from the anode block that remained undamaged.
  • the anode block 10 placed on base 18 is not lifted during that operation.
  • Fig. 1 shows in addition that the impact fork mass body 22 is vertically guided in machine frame 17, e.g. along roller guides 25, 26.
  • the impact fork mass body 22 features a central passage by which it encompasses anode rod 15.
  • swiveling clamps 27 for loosely enclosing, i.e. for loosely retaining anode rod 15, have been linked to upper cross-beam 19 of machine frame 17.

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)
  • Manufacture And Refinement Of Metals (AREA)
EP20050027331 2004-12-17 2005-12-14 Dispositif de séparation des anodes de leur barre d'anode Active EP1672099B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410060823 DE102004060823B4 (de) 2004-12-17 2004-12-17 Vorrichtung zur schonenden Trennung von Blockanoden von ihren Anodenstangen

Publications (3)

Publication Number Publication Date
EP1672099A2 true EP1672099A2 (fr) 2006-06-21
EP1672099A3 EP1672099A3 (fr) 2008-07-09
EP1672099B1 EP1672099B1 (fr) 2013-05-01

Family

ID=36128624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050027331 Active EP1672099B1 (fr) 2004-12-17 2005-12-14 Dispositif de séparation des anodes de leur barre d'anode

Country Status (3)

Country Link
EP (1) EP1672099B1 (fr)
AU (1) AU2005244546B8 (fr)
DE (1) DE102004060823B4 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101370967B (zh) * 2005-12-16 2010-10-27 E.C.L.公司 去除火法电解的耗尽阳极上的残余物的方法及所用机器
CN103691639A (zh) * 2013-12-26 2014-04-02 湖南创元新材料有限公司 阳极导杆钢爪蘸石墨的方法
CN104988539A (zh) * 2015-07-20 2015-10-21 太原三众科技有限公司 使电流分布均衡的侧焊接工字梁式不内勾双阳极钢爪
CN108070879A (zh) * 2017-11-29 2018-05-25 石文科 一种铝电解槽的夹持框
CN111453608A (zh) * 2019-10-30 2020-07-28 国家电投集团黄河上游水电开发有限责任公司 一种铝用阳极钢爪体竖立吊具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2569382A (en) * 2017-12-18 2019-06-19 Dubai Aluminium Pjsc Anode yoke, anode hanger and anode assembly for a Hall-Heroult cell
EP4206362A1 (fr) * 2021-12-29 2023-07-05 Dubai Aluminium PJSC Procédé et installation pour la maintenance d'une culasse d'anode d'une cellule de hall-héroult

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2832520A1 (de) 1978-07-25 1980-02-07 Gewerk Eisenhuette Westfalia Vorrichtung zum entfernen der restanoden von anodenstangen
DE4128522A1 (de) 1991-08-28 1993-03-04 Westfalia Becorit Ind Tech Einrichtung zum entfernen der restanoden von anodenstangen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604071A (en) * 1950-04-07 1952-07-22 Chambersburg Eng Co Drop hammer of the gravity type
NL134536C (fr) * 1968-09-19
US4007533A (en) * 1975-11-24 1977-02-15 Jervis B. Webb Company Apparatus for stripping an anode block from an anode assembly
DE4410599A1 (de) * 1994-03-26 1995-09-28 Scharf Westfalia Maschinenfabr Vorrichtung zum Entfernen von Restanoden und/oder Gußhülsen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2832520A1 (de) 1978-07-25 1980-02-07 Gewerk Eisenhuette Westfalia Vorrichtung zum entfernen der restanoden von anodenstangen
DE4128522A1 (de) 1991-08-28 1993-03-04 Westfalia Becorit Ind Tech Einrichtung zum entfernen der restanoden von anodenstangen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101370967B (zh) * 2005-12-16 2010-10-27 E.C.L.公司 去除火法电解的耗尽阳极上的残余物的方法及所用机器
CN103691639A (zh) * 2013-12-26 2014-04-02 湖南创元新材料有限公司 阳极导杆钢爪蘸石墨的方法
CN104988539A (zh) * 2015-07-20 2015-10-21 太原三众科技有限公司 使电流分布均衡的侧焊接工字梁式不内勾双阳极钢爪
CN108070879A (zh) * 2017-11-29 2018-05-25 石文科 一种铝电解槽的夹持框
WO2019105184A1 (fr) * 2017-11-29 2019-06-06 石文科 Cadre de serrage pour cellule électrolytique à l'aluminium
CN108070879B (zh) * 2017-11-29 2019-08-02 石文科 一种铝电解槽的夹持框
CN111453608A (zh) * 2019-10-30 2020-07-28 国家电投集团黄河上游水电开发有限责任公司 一种铝用阳极钢爪体竖立吊具
CN111453608B (zh) * 2019-10-30 2022-07-12 国家电投集团黄河上游水电开发有限责任公司 一种铝用阳极钢爪体竖立吊具

Also Published As

Publication number Publication date
EP1672099B1 (fr) 2013-05-01
DE102004060823B4 (de) 2007-10-04
EP1672099A3 (fr) 2008-07-09
AU2005244546B2 (en) 2010-10-28
AU2005244546B8 (en) 2011-02-17
DE102004060823A1 (de) 2006-06-29
AU2005244546A1 (en) 2006-07-06

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