EP0137131B1 - Verfahren und Vorrichtung zum Reinigen von bei der Schmelzflusselektrolyse verwendeten Restanoden - Google Patents

Verfahren und Vorrichtung zum Reinigen von bei der Schmelzflusselektrolyse verwendeten Restanoden Download PDF

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Publication number
EP0137131B1
EP0137131B1 EP84107841A EP84107841A EP0137131B1 EP 0137131 B1 EP0137131 B1 EP 0137131B1 EP 84107841 A EP84107841 A EP 84107841A EP 84107841 A EP84107841 A EP 84107841A EP 0137131 B1 EP0137131 B1 EP 0137131B1
Authority
EP
European Patent Office
Prior art keywords
bath material
anode
cleaning
anode residue
residue
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
Application number
EP84107841A
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German (de)
English (en)
French (fr)
Other versions
EP0137131A1 (de
Inventor
Helmut Bachmann
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.)
Novelis Koblenz GmbH
Original Assignee
Kaiser Aluminium Europe Inc
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 Kaiser Aluminium Europe Inc filed Critical Kaiser Aluminium Europe Inc
Priority to AT84107841T priority Critical patent/ATE27189T1/de
Publication of EP0137131A1 publication Critical patent/EP0137131A1/de
Application granted granted Critical
Publication of EP0137131B1 publication Critical patent/EP0137131B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • 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 relates to a method and a device for cleaning residual anodes, which are used in particular in the melt flow electrolysis of aluminum.
  • a weld pool is generated by electric current; the electrolysis cells are provided with anodes and cathodes.
  • the anodes must be replaced from time to time due to their wear. It is known to roughly pre-clean the residual anodes directly above the electrolysis cell or the furnace by baking the essentially still glowing bath material with lances, rods and the like on the residual anode. The like. Tools are released manually and pushed back into the weld pool. Understandably, this work is very difficult and uncomfortable even in view of the great heat. In addition, the insertion of new anodes is made difficult by the coarse pieces of bath material left behind and pushed back during the rough cleaning.
  • the residual anodes which have been pre-cleaned in this way are first stored in racks and, after cooling, are fed to a cleaning station, to which the fine cleaning is in turn connected manually with the aid of cleaning tools and compressed air. This work is also not very comfortable because of the dust development.
  • the invention has for its object to make the method and the device used more comfortable and yet economical.
  • the invention consists in that the residual anode rotates in the cleaning station and is exposed as a baffle to a stream of impact bodies which knock off the bath material from the residual anode.
  • the impact bodies in particular balls made of ferromagnetic material, such as steel, strike all parts of the rotating residual anode, as a result of which the previously usual process steps of pre-cleaning and main cleaning are combined into a single process step and a manual or mechanical but cumbersome one Editing becomes unnecessary.
  • This automation of cleaning therefore makes the cleaning process much more convenient and, above all, more economical when the removed bath material is recycled.
  • This embodiment of the invention is particularly advantageous when the residual anode in the cleaning station is pivoted from a hanging position suspended in a cleaning chamber into an inclined position, so that the cleaning anode with the baffle surfaces to be cleaned emerges from the cleaning chamber, in particular through a window or another opening protrudes through the chamber wall, where it can hit or hit the impact body in free fall.
  • the flow of the impact bodies and the chopped off pieces of the bath material is then separated, in particular in a separating device, so that bath material of a sufficiently small grain size can be fed back to the electrolysis cell, while the impact bodies are separated from the coarser bath material pieces after being separated and fed back to the falling stream of impact bodies can; the coarser pieces of bath material are in turn crushed to a grain size of less than 50 mm and recycled.
  • a rotary drive for the residual anode which rotates the residual anode in the cleaning station, while a pivoting unit pivots the residual anode through a window of a cleaning chamber of the cleaning station into the falling stream of the impact bodies.
  • FIG. 1 shows schematically the course of the method when using a device for cleaning a residual anode in the processing station.
  • the suspension device for the residual anode 1 is conveyed into the hanging position in the cleaning chamber 16 by means of a chain conveyor 17 serving as a transport device.
  • a swivel unit 13 ensures that the residual anode 1 with its suspension and its rotary drive 2 reaches the inclined position shown in solid lines; the swivel angle a relative to the vertical is approximately 45 °.
  • the residual anode 1 is located outside the cleaning chamber 16, since it is swung out through the window 16a of the cleaning chamber 16 into the falling stream 14 of impact bodies 11.
  • the rotary drive 2 allows the residual anode 1 to rotate, so that its surface serves as an impact surface for the free-falling impact bodies 11, which consist of ferromagnetic steel balls.
  • a guide device 6 designed as a guide chute is arranged approximately 4 m above the residual anode 1 in its inclined position, so that the striking bodies 11 have sufficient kinetic energy to knock off building material from the residual anode 1 when it hits it.
  • the rotation does not have to be done at high speed; one speed is sufficient from 12 rpm.
  • the drop bodies have a diameter of about 6 cm.
  • the knocked off bath material with the impact bodies 11 slide down onto a sieve 7 with a mesh size such that the impact body 11 and pieces of coarser bath material 12 do not slip through the sieve, but only smaller-grained bath material 1 2a .
  • This more granular bath material 12a reaches a collecting bunker 15 via a bucket elevator 8; From there it can be re-fed to electrolysis cells.
  • the coarser bath material 12 with the impact bodies 11 passes through an intermediate bunker to a bucket elevator 9 and is pulled up by this to the feed bunker 4, from which the mixture of the impact bodies 11 and the coarser bath material 12 reaches the magnetic separator 5 via a conveying trough 3, which directs the impact bodies 11 to the guide device 6, while the coarser pieces of the bath material 12 reach a roller crusher 10, which breaks them into smaller-grain bath material 12a, which then slide downwards along the inclined wall and, after meeting the impact bodies 11 and newly chopped off Slide bath material 12 through sieve 7 into bucket elevator 8.
  • This particularly preferred embodiment of the invention shows that the method and the device can not only be carried out practically fully automatically, but also work extremely economically, since practically no materials are lost, so that the invention ensures considerable technical progress in this special field of technology. This can prevent health problems caused by working in excessive heat during pre-cleaning and when there is a lot of dust.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
EP84107841A 1983-08-17 1984-07-05 Verfahren und Vorrichtung zum Reinigen von bei der Schmelzflusselektrolyse verwendeten Restanoden Expired EP0137131B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84107841T ATE27189T1 (de) 1983-08-17 1984-07-05 Verfahren und vorrichtung zum reinigen von bei der schmelzflusselektrolyse verwendeten restanoden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3329736 1983-08-17
DE3329736A DE3329736C2 (de) 1983-08-17 1983-08-17 Verfahren und Vorrichtung zum Reinigen von bei der Schmelzflußelektrolyse verwendeten Restanoden

Publications (2)

Publication Number Publication Date
EP0137131A1 EP0137131A1 (de) 1985-04-17
EP0137131B1 true EP0137131B1 (de) 1987-05-13

Family

ID=6206789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107841A Expired EP0137131B1 (de) 1983-08-17 1984-07-05 Verfahren und Vorrichtung zum Reinigen von bei der Schmelzflusselektrolyse verwendeten Restanoden

Country Status (10)

Country Link
US (1) US4585538A (enrdf_load_stackoverflow)
EP (1) EP0137131B1 (enrdf_load_stackoverflow)
JP (1) JPS61117296A (enrdf_load_stackoverflow)
AT (1) ATE27189T1 (enrdf_load_stackoverflow)
AU (1) AU563213B2 (enrdf_load_stackoverflow)
BR (1) BR8404158A (enrdf_load_stackoverflow)
CA (1) CA1239899A (enrdf_load_stackoverflow)
DE (1) DE3329736C2 (enrdf_load_stackoverflow)
ES (1) ES8504274A1 (enrdf_load_stackoverflow)
NO (1) NO161331C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105018968A (zh) * 2015-08-07 2015-11-04 广西百色银海铝业有限责任公司 一种铝电解槽阴极钢棒除锈砂铣装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439078A1 (de) * 1984-10-25 1986-04-30 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und vorrichtung zur reinigung von losen anodenbruchstuecken
US4701249A (en) * 1985-08-31 1987-10-20 Gewerkschaft Eisenhutte Westfalia Gmbh Mobile apparatus for cleaning remnants of carbon anode blocks
AU634375B2 (en) * 1991-01-22 1993-02-18 Kenneth Allan Jones A method and apparatus for reconditioning electrical bus bars
KR100408660B1 (ko) * 1999-09-14 2003-12-11 주식회사 포스코 덩어리 산화철 분리 파쇄 회수장치
CN101275243B (zh) * 2008-01-07 2010-09-01 贵州莱利斯机械设计制造有限责任公司 一种残余阳极电解质清理方法及装置
RU2385973C1 (ru) * 2008-11-21 2010-04-10 ЮНАЙТЕД КОМПАНИ РУСАЛ АйПи ЛИМИТЕД Контейнер для герметизации анодных огарков
WO2012106748A1 (en) * 2011-02-07 2012-08-16 Empire Technology Development Llc Cell sorting apparatus and method
CN102430561A (zh) * 2011-11-24 2012-05-02 山东魏桥铝电有限公司 电解铝残极清理破碎系统及回收方法
CN103849892B (zh) * 2013-06-03 2016-08-10 洛阳宇航重工机械有限公司 一种残阳极电解质清理设备
CN103317448A (zh) * 2013-06-19 2013-09-25 贵阳新高铝炭技术有限公司 一种残极组在线旋转抛丸清理机
CN106513092B (zh) * 2016-09-29 2018-11-23 张家港长力机械有限公司 残极破碎机
CN115256244A (zh) * 2022-08-12 2022-11-01 宁波江丰电子材料股份有限公司 一种针对电解镍板的物理清洗方法

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
NL6802261A (enrdf_load_stackoverflow) * 1967-02-18 1968-08-19
CH545171A (de) * 1972-08-31 1974-01-31 Fischer Ag Georg Anlage zur Oberflächenbehandlung von Werkstücken mit einer Schleuderstrahlmaschine sowie Verfahren zum Betrieb der Anlage
JPS5145529A (enrdf_load_stackoverflow) * 1974-10-17 1976-04-19 Canon Kk
FR2350407A1 (fr) * 1976-05-04 1977-12-02 Pechiney Aluminium Procede et dispositif pour le nettoyage des megots d'anodes usees provenant de cuve d'electrolyse ignee
DE2846737A1 (de) * 1978-10-24 1980-04-30 Zschimmer Gero Verfahren zum bearbeiten einer flaeche und vorrichtung zur durchfuehrung dieses verfahrens
DE3032525C2 (de) * 1980-08-29 1982-11-18 Hamburger Aluminium-Werk GmbH, 2103 Hamburg Vorrichtung zur Reinigung von Anodenresten
FR2510144A1 (fr) * 1981-07-23 1983-01-28 Pechiney Aluminium Procede et appareillage pour la separation des residus de bain d'electrolyse sur les anodes precuites
NO149004C (no) * 1981-10-06 1984-01-25 Norsk Hydro As Fremgangsmaate og anordning for oppdeling av stoerknet badmateriale paa rester av forbakte anoder fra aluminium-elektrolyseceller
DE3142849A1 (de) * 1981-10-29 1983-05-11 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Einrichtung zum reinigen der anodenstangen fuer elektrolytische aluminiumschmelzbaeder
ZA833464B (en) * 1982-06-25 1984-02-29 Kennecott Corp Method and apparatus for cleaning workpieces
US4510033A (en) * 1984-06-18 1985-04-09 Aluminum Company Of America Frozen electrolyte bath removal apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105018968A (zh) * 2015-08-07 2015-11-04 广西百色银海铝业有限责任公司 一种铝电解槽阴极钢棒除锈砂铣装置
CN105018968B (zh) * 2015-08-07 2018-01-09 广西百色银海铝业有限责任公司 一种铝电解槽阴极钢棒除锈砂铣装置

Also Published As

Publication number Publication date
AU3197084A (en) 1985-02-21
JPS6334235B2 (enrdf_load_stackoverflow) 1988-07-08
ES535189A0 (es) 1985-05-01
NO843263L (no) 1985-02-18
BR8404158A (pt) 1985-07-16
DE3329736C2 (de) 1986-05-22
DE3329736A1 (de) 1985-03-07
JPS61117296A (ja) 1986-06-04
NO161331C (no) 1989-08-02
CA1239899A (en) 1988-08-02
AU563213B2 (en) 1987-07-02
ES8504274A1 (es) 1985-05-01
NO161331B (no) 1989-04-24
US4585538A (en) 1986-04-29
ATE27189T1 (de) 1987-05-15
EP0137131A1 (de) 1985-04-17

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