EP0121954B1 - Apparatus for the positioning and filling of protective sleeves on an anode block - Google Patents

Apparatus for the positioning and filling of protective sleeves on an anode block Download PDF

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Publication number
EP0121954B1
EP0121954B1 EP19840200262 EP84200262A EP0121954B1 EP 0121954 B1 EP0121954 B1 EP 0121954B1 EP 19840200262 EP19840200262 EP 19840200262 EP 84200262 A EP84200262 A EP 84200262A EP 0121954 B1 EP0121954 B1 EP 0121954B1
Authority
EP
European Patent Office
Prior art keywords
filling
sleeves
anode
anode block
positioning
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
EP19840200262
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0121954A1 (en
Inventor
Hendrik Mekkering
Cornelis Johan De Boer
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.)
Aluminium Delfzijl BV
Original Assignee
Aluminium Delfzijl BV
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 Aluminium Delfzijl BV filed Critical Aluminium Delfzijl BV
Publication of EP0121954A1 publication Critical patent/EP0121954A1/en
Application granted granted Critical
Publication of EP0121954B1 publication Critical patent/EP0121954B1/en
Expired legal-status Critical Current

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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 relates to an apparatus for the positioning and filling of protective sleeves around the attachment of an anode rod to an anode block.
  • anode blocks which, suspended on an anode rod, are immersed in the fluid salt.
  • the attachment of the anode block to an anode rod is achieved with a steel fork piece.
  • the anode block is provided on its upper side with two rectangular cavities about 8.5 cm deep into which fit the two stubs or extremities of the fork piece.
  • the cavities are filled with an electrically conductive, e.g. tar-containing, tamping mass, and in order to increase adhesion the bottoms of the extremities of the fork piece have a horizontal weld bead.
  • a sleeve In order during operation to protect the steel fork piece above the anode block against attack by the hot salt because of its dissolving power, two protective sleeves of aluminium are fixed around it.
  • a sleeve consists for example of a strip of aluminium about 10 cm high with four right-angled bends, which is fixed around the end of the fork piece.
  • the sleeve is then filled with the granular tar-containing mass.
  • This aluminium sleeve is by itself just a temporary protection, since during operation the aluminium melts away very rapidly and the granular tar-containing mass which it surrounded remains as a sintered protection for the fork piece.
  • the invention has the object of providing an apparatus for the positioning and filling of the two protective sleeves.
  • the invention is set out in claim 1.
  • outlets of the hoppers are preferably provided with a measuring device capable of delivering the desired amount.
  • the filling means take the form of vibratory troughs.
  • control means can be provided which activates the vibratory troughs for a certain time in order to shake the desired quantity of material down into the protective sleeves.
  • Fresh carbon anode blocks are supplied in the anode shop, having already on their upper surface two rectangular cavities of about 8.5 cm depth.
  • An anode rod is fixed into each anode using a steel fork piece.
  • the two extremities of the legs of the fork piece have a weld bead along the lower edge of one side.
  • the legs of the fork piece (with the anode rod above) are placed in the cavities of the anode block, and alongside the weld bead a a tar-containing mass is tamped in using an L-shaped knife, for the purpose of ensuring a good electrically conductive connection between anode rod and anode block.
  • the anode consisting of anode block and anode rod is transported to the apparatus according to the invention by means of an intermittently stepping horizontal conveyor, as shown in the drawing.
  • the horizontal conveyor is indicated by the reference number 1.
  • the anode block 2 is situated on it together with the attached fork piece 3 of the anode rod.
  • the aluminium protection sleeves 4 have been fixed around the two extremities of the fork piece. It is necessary to position these protective sleeves relative to the fork piece and to fill the space between fork piece and protective sleeve with a granular tar-containing mass.
  • the horizontal section of the fork piece is shown hatched by reference number 3, and the mass tamped into the aforementioned rectangular cavities is indicated by 5 and 6.
  • the two sleeves 4 are also visible.
  • the space between the extremities of the fork piece and the sleeves must be filled with a granular tar-containing mass which is introduced at both sides via two pairs of vibratory troughs 7 and 8.
  • These vibratory troughs are filled from hoppers 9 and 10 respectively, and the outlets of these have a measuring gate 11 which is arranged to deliver a predetermined quantity of the filling material from the hopper.
  • a cylinder 12 on each of the hoppers 9, 10 operates this dosing gate.
  • pushing means 13 and 14 For the purpose of positioning the sleeves 4 (see Fig. 3) on the upper surface of the anode block 2, there are pushing means 13 and 14.
  • the generally W-shaped pushing face of these has straight sections of the same length as the sleeve (see Fig. 3).
  • These pushing means 13 and 14 can each pivot on a horizontal shaft 15 and 16 and are moved towards and away from the anode rod 3 by means of cylinders 17 and 18 (see Fig. 1).
  • the sleeves are well positioned by the oblique sections of the W-shaped faces of the pushing means 13 and 14 when these pushing means are lowered.
  • these pushing means 13 and 14 remain with their edges resting against the sleeves 4.
  • Any spilled material which may fall over the edge of the sleeves 4 is collected in the pushing tools which are shaped as collecting troughs.
  • the spilled material can then return via a chute 19 and 20 into a horizontal screw conveyor 21 which is driven by an electric-motor 22 via a right angled gear drive 23.
  • the spilled material can be collected in a tray 24 and from there be returned to hoppers 9, 10 by a vertical conveyor which is indicated schematically at 25 in Fig. 3.
  • the pushing means 13 and 14 which are designed as centering pieces and collecting troughs are connected to the chutes 19 and 20 by dustproof flexible connecting hoses 26, 27.
  • the granular tar-containing mass is heated on the upper surface with a burner, so that a crust forms to prevent spillage from the mass during further transport of the anode and at the same time to fix the position of the sleeves 4 on the anode block.

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)
EP19840200262 1983-02-25 1984-02-24 Apparatus for the positioning and filling of protective sleeves on an anode block Expired EP0121954B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8300711A NL182740C (nl) 1983-02-25 1983-02-25 Inrichting voor het positioneren, vullen, en het op de juiste plaats houden tijdens het vullen van de beide beschermkragen op een anodeblok.
NL8300711 1983-02-25

Publications (2)

Publication Number Publication Date
EP0121954A1 EP0121954A1 (en) 1984-10-17
EP0121954B1 true EP0121954B1 (en) 1986-09-03

Family

ID=19841476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840200262 Expired EP0121954B1 (en) 1983-02-25 1984-02-24 Apparatus for the positioning and filling of protective sleeves on an anode block

Country Status (5)

Country Link
EP (1) EP0121954B1 (no)
DE (1) DE3460591D1 (no)
IS (1) IS1282B6 (no)
NL (1) NL182740C (no)
NO (1) NO161330C (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605608A1 (de) * 1986-02-21 1987-08-27 Gewerk Eisenhuette Westfalia Verfahren und einrichtung zum anbringen von kragen aus aluminiumblech od.dgl. an den aus anodenbloecken herausragenden nippeln von anodenstangen
NO885787D0 (no) * 1988-04-29 1988-12-28 Robotec Eng As Fremgangsmaate og anordning for stoeping av krage paa anodenipler.
DE4036485A1 (de) * 1990-11-16 1992-05-21 Westfalia Becorit Ind Tech Einrichtung zum paarweisen zusammenstellen und ausrichten von anodenbloecken
DE4414271B8 (de) * 1994-04-23 2008-10-02 Outotec Oyj Vorrichtung zum Ablösen von Gußhülsen von Anodenstangen
EP0764728B1 (de) * 1995-09-25 2000-01-19 DEUTZ Aktiengesellschaft Vorrichtung zur Bearbeitung der an der Oberseite einer Blockanode vorhandenen Zapfenlöcher

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002131B (de) * 1954-04-09 1957-02-07 Aluminium Ind Ag Gebrannte Kohleanode fuer die Aluminium-Schmelzflusselektrolyse
DE2547061B2 (de) * 1975-10-21 1978-06-08 Kaiser-Preussag Aluminium Gmbh & Co, Voerde, 4223 Voerde Vorrichtung zum Schutz von Stromzuführungszapfen an Anodenkohlen für die Schmelzflußelektrolyse von Aluminium
JPS5397914A (en) * 1977-02-07 1978-08-26 Sumitomo Aluminium Smelting Co Positive paste filling appratus of aluminum electrolytic furnace
CH625560A5 (no) * 1977-12-16 1981-09-30 Alusuisse
NO144641C (no) * 1979-05-23 1981-10-07 Norsk Hydro As Apparat for fylling av anodemasse i et boltehull som oppstaar under trekking av anodebolter

Also Published As

Publication number Publication date
NL182740C (nl) 1988-05-02
NL182740B (nl) 1987-12-01
NO840719L (no) 1984-08-27
IS2882A7 (is) 1984-04-13
DE3460591D1 (en) 1986-10-09
NO161330B (no) 1989-04-24
EP0121954A1 (en) 1984-10-17
NO161330C (no) 1989-08-02
NL8300711A (nl) 1984-09-17
IS1282B6 (is) 1987-07-07

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