EP3438329B1 - Kathodenabisoliermaschine - Google Patents

Kathodenabisoliermaschine Download PDF

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Publication number
EP3438329B1
EP3438329B1 EP16891324.2A EP16891324A EP3438329B1 EP 3438329 B1 EP3438329 B1 EP 3438329B1 EP 16891324 A EP16891324 A EP 16891324A EP 3438329 B1 EP3438329 B1 EP 3438329B1
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Prior art keywords
cathode
stripping
cathodes
level
machine
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EP16891324.2A
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English (en)
French (fr)
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EP3438329A4 (de
EP3438329A1 (de
Inventor
Yves Lefevre
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing
    • C25C7/08—Separating of deposited metals from the cathode

Definitions

  • the present invention corresponds to the technical field of cathode stripping machines, which are necessary for separating the metal sheets obtained by electrolysis on said cathodes.
  • the first reference document ES0372891 relates to a hydraulic method for stripping the zinc deposited on the cathodes for the electrolytically obtaining the same, wherein once the cathodes are removed from the tank, each one of the faces thereof is subjected to a high-pressure water jet directed such that it impacts on the separation line between the aluminum sheet and the zinc deposited thereon, with a specific angle to cause the zinc to detach.
  • This method offers an alternative mode that prevents the surfaces of the cathodes from being damaged, but it is still slow since the separation is carried out on each cathode individually, and the cathodes and the pressurized water injectors must be accurately levelled so that the water accurately impacts on the waterline thereof and not elsewhere, since any small variation, due to the evaporation in the electrolysis tanks for example, would mean that the application of the water jet would not fulfil its purpose.
  • the reference document ES2005673 relates to a method for stripping electrolytically deposited copper from a cathode, wherein said cathode is subjected to bending stress at a magnitude greater than the adhesion strength between the deposited copper and the cathode, but without exceeding the yield strength thereof, thus making at least part of the copper deposited separate from the cathode, and the deposited copper can then be stripped, by means of a wedge or gas jet.
  • each cathode must be treated individually with the gas jet or with a wedge and the cathodes must also be previously bent, which increases the time used and over time, the cathodes can break due to fatigue.
  • the cathode stripping machine which has a sheet-shaped metal deposit on each one of the two opposite faces thereof shown here, comprises a first operating level and a second reception level located below the first level.
  • the first operating level comprises an infeed mechanism of the cathodes, a first transfer mechanism for transferring said cathodes inside the machine, a treatment mechanism with a stripping head having two stripping frames, each acting on one cathode simultaneously, a second transfer mechanism for transferring the cathodes, and an outfeed mechanism of the cathodes without sheets.
  • the second level comprises for each of the resulting sheets, a sheet reception system, a conveyor belt, and a sheet removal station, as well as a shared collection and weighing table with rollers for both sheets.
  • the cathode reception mechanism of the first level comprises a parallel beam system, where a first beam is fixed and second beam is walking, the movement of which in a vertical direction is caused by a hydraulically actuated pivoting pusher assembly and the movement in a horizontal direction is caused by a synchronized double hydraulic cylinder assembly between them by means of a hydromechanical flow divider.
  • the first transfer mechanism for transferring the cathodes to the stripping mechanism is formed by an aerial chain conveyor and the second transfer mechanism for transferring the cathodes is formed by an aerial twin cable conveyor.
  • each one of the two stripping frames of the treatment mechanism of the first level comprises cathode washing means, formed by a series of water manifolds with spray nozzles fastened to the stripping head.
  • each stripping frame of the treatment mechanism of the first level comprises first advance means of the cathodes along the stripping head, formed in each case by a walking beam mechanism actuated hydraulically that has an anti-sway system.
  • the treatment mechanism comprises a guided blade system for each one of the stripping frames of the cathodes, wherein said blade system is secured to the stripping head.
  • the treatment mechanism comprises pre-stripping means for each stripping frame formed by a robot with a blade for each cathode.
  • the treatment mechanism comprises pre-stripping starting means that have a frame with movable cutting means.
  • said pre-stripping starting means are suitable for checking the level of adhesion between the cathode and the sheet thereon.
  • the first operation level of this cathode stripping machine comprises a scrubbing frame located downstream from the second transfer mechanism and is formed by two scrubbing mechanisms, one for each one of the cathodes processed simultaneously.
  • Each one of said scrubbing mechanisms supports a scrubbing device and second advance means responsible for taking each cathode from the second transfer mechanism through the scrubbing frame and to the outfeed mechanism, wherein said second advance means are formed by a walking beam.
  • the scrubbing device comprises a lifting mechanism formed by a mobile trolley guided by means of vertical rails, a sub-assembly of brushes fixed to connecting rods and, an irrigation system formed by a series of manifolds provided with spray nozzles.
  • the sheet reception system of the second level comprises a damping system of said sheets formed by a hatch actuated by means of pneumatic bellows and a sheet accompanying system.
  • the sheet reception system comprises two pairs of wheels downstream of the damping system actuated by means of electric geared motors in order to control the drop speed of the sheets.
  • the sheet removal station comprises a fixed reception frame, a reception robot and a guide device.
  • the shape in which the machine is designed has a perfect control over the steps to be carried out, both for each pair of cathodes and for the sheets that detach therefrom. This is controlled through two, perfectly synchronized, levels of the machines that reduce the time used in stripping the cathodes and significantly increases the productivity of the machine.
  • the stripping is carried out with blades and a pre-stripping is carried out beforehand and a pre-stripping initiator, such that the sheets of the surfaces of the cathodes are separated without causing any damage or scratches thereon.
  • the cathode 5 stripping machine 3 which cathodes have a metal deposit in the form of a sheet on each one of the two opposite faces thereof that is presented herein, comprises a first operating level 1 and a second reception level 2 located below said first level 1.
  • a machine with aluminum cathodes on which a sheet of zinc accumulates due to electrolysis is considered.
  • the first operating level 1 comprising an infeed mechanism 4 of the cathodes 5 to the machine, a first transfer mechanism 8.1 for transferring said cathodes inside the machine, a treatment mechanism with a stripping head having two stripping frames 7, each acting on one cathode simultaneously, a second transfer mechanism 8.2 for transferring the cathodes, and an outfeed mechanism 9 of the cathodes without zinc sheets.
  • the second level 2 comprises for each of the resulting sheets, a sheet reception system 10, a conveyor belt 11, and a sheet removal station 12, as well as a shared collection and weighing table 13 with rollers for both sheets.
  • a crane is responsible for depositing the cathodes 5 in the infeed mechanism 4 thereof in the machine.
  • said infeed mechanism 4 of the cathodes of the first level 1 comprises a parallel beam system, with a first fixed beam and a second walking beam.
  • the movement of this second walking beam is caused in a vertical direction by a hydraulically actuated pivoting pusher assembly, while in a horizontal direction it is caused by a synchronized double hydraulic cylinder assembly between them by means of a hydromechanical flow divider.
  • This first transfer mechanism 8.1 Downstream of the infeed mechanism 4 of the cathodes, in this preferred embodiment of the invention, there is the first transfer mechanism 8.1 for transferring the same to the treatment mechanism.
  • This first transfer mechanism 8.1 is formed by an aerial cable conveyor. Its purpose is to move the cathodes 5 from the alignment of the infeed mechanism 4 to the alignment of the stripping head.
  • the treatment mechanism of the first level which is shown in figure 1 , in this preferred embodiment of the invention, has on each one of the two stripping frames 7, cathode washing means, formed by a series of water manifolds with spray nozzles fastened to the stripping head.
  • both stripping frames 7 of the treatment mechanism respectively comprise first advance means of the cathodes 5 along the stripping head, formed in each case by a walking beam mechanism actuated hydraulically that has an anti-sway system.
  • the treatment mechanism comprises a guided blade system 6 for each one of the stripping frames 7 of the cathodes, wherein said blade system is secured to the stripping head.
  • the purpose of the stripping frames 7 is to house the mechanisms responsible for completely separating the aluminum cathode and the zinc sheet, causing the latter to fall towards the lower level of the machine.
  • the treatment mechanism before the stripping frames 7, the treatment mechanism comprises pre-stripping means 14 for each stripping frame 7 formed by a robot with a blade for each side of the cathode.
  • the aim of these pre-stripping means 14 is to achieve an initial detachment of a small area of zinc throughout the upper portion of the cathode, without breaking the zinc sheet or damaging the surface of the cathode.
  • the robot equipped with the blade in addition to being capable of carrying out the pre-stripping by means of said blades each acting on each face of the cathode, in the event that it detects difficulties in the pre-stripping, a rejection order is generated for said cathode and the robot is able to remove it.
  • the cathodes After the cathodes have passed through the treatment mechanism, they are deposited on the second transfer mechanism 8.2, which in this preferred embodiment of the invention is formed by an aerial twin cable conveyor.
  • the cathodes are transferred by means of said second transfer means 8.2 to a cathode scrubbing frame 15.
  • Said scrubbing frame 15 is formed by two scrubbing mechanisms, one for each one of the simultaneously processed cathodes.
  • Each scrubbing mechanism fastens a scrubbing device and second advance means responsible for taking each cathode from the second transfer mechanism 8.2 through the scrubbing frame and to the outfeed mechanism 9, wherein said second advance means are formed by a walking beam.
  • said scrubbing device comprises a lifting mechanism formed by a mobile trolley guided by means of vertical rails, a sub-assembly of brushes fixed to connecting rods and, an irrigation system formed by a series of manifolds provided with spray nozzles.
  • the sheet reception system 10 of the second level 2 comprises a damping system of said sheets formed by a hatch actuated by means of pneumatic bellows and a sheet accompanying system.
  • the sheet removal station 12 comprises a fixed reception frame, a reception robot and a guide device.

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  • 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)

Claims (13)

  1. Kathodenenabisoliermaschine (3) mit einer Metallablagerung in Form einer Schicht auf jeder der beiden gegenüberliegenden Flächen davon, dadurch gekennzeichnet, dass sie umfasst
    - eine erste Betriebsebene (1) und eine zweite Aufnahmeebene (2) unterhalb der ersten Ebene;
    - wobei die erste Ebene (1) einen Einspeisemechanismus (4) der Kathoden in der Maschine umfasst, einen ersten Übertragungsmechanismus (8.1) zum Übertragen der Kathoden (5) innerhalb der Maschine, einen Behandlungsmechanismus mit einem Abisolierkopf mit zwei Abisolierrahmen (7), die jeweils gleichzeitig auf eine Kathode (5) wirken, einen zweiten Übertragungsmechanismus (8.2) zum Übertragen der Kathoden und einen Auslaufmechanismus (9) der Kathoden ohne Schichten und;
    - wobei die zweite Ebene (2) für jede der beiden resultierenden Schichten ein Schichtaufnahmesystem (10), ein Förderband (11) und eine Schichtentfernungsstation (12) sowie einen gemeinsamen Sammel- und Wiegetisch (13) mit Rollen für beide Schichten umfasst.
  2. Kathodenenabisoliermaschine (3), nach Anspruch 1, dadurch gekennzeichnet, dass der Einspeisemechanismus (4) der Kathode (5) der ersten Ebene (1) ein Parallelbalkensystem umfasst, wobei ein erster Balken feststehend ist und ein zweiter Balken schwingt, dessen Bewegung in vertikaler Richtung durch eine hydraulisch betätigte schwenkbare Schubanordnung verursacht wird und dessen Bewegung in horizontaler Richtung durch eine synchronisierte Doppelhydraulikzylinderanordnung zwischen ihnen mittels eines hydromechanischen Strömungsteilers erzeugt wird.
  3. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der erste Übertragungsmechanismus (8.1) zum Übertragen der Kathoden zum Behandlungsmechanismus durch einen Luftkettenförderer gebildet ist und der zweite Übertragungsmechanismus (8.2) zum Übertragen der Kathoden durch einen Luft-Doppelkabelförderer gebildet ist.
  4. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder Abisolierrahmen (7) des Behandlungsmechanismus der ersten Ebene (1) Kathodenwaschmittel umfasst, die durch eine Reihe von Wasserverteilern mit am Abisolierkopf befestigten Sprühdüsen gebildet sind.
  5. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder Abisolierrahmen (7) des Behandlungsmechanismus der ersten Ebene (1) erste Vorschubmittel der Kathoden (5) entlang des Abisolierkopfes umfasst, die in beiden Fällen durch einen hydraulisch betätigten Schwingbalkenmechanismus gebildet sind, der ein Pendelschutzsystem aufweist.
  6. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Behandlungsmechanismus ein geführtes Schaufelsystem (6) für jeden der Abisolierrahmen (7) der Kathoden umfasst, wobei das Schaufelsystem (6) an dem Abisolierkopf befestigt ist.
  7. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Behandlungsmechanismus Vorabisoliermittel (14) für jeden Abisolierrahmen (7) umfasst, die von einem Roboter mit einer Schaufel für jede Seite der Kathode gebildet sind.
  8. Kathodenenabisoliermaschine (3), nach Anspruch 7, dadurch gekennzeichnet, dass der Behandlungsmechanismus Vorabisolier-Startmittel umfasst, die einen Rahmen mit beweglichen Schneidmitteln aufweisen, die zum Überprüfen des Adhäsionsgrades zwischen der Kathode (5) und der Schicht darauf geeignet ist.
  9. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Betriebsebene (1) einen Waschrahmen (15) umfasst, der stromabwärts des zweiten Übertragungsmechanismus (8.2) angeordnet und durch zwei Waschmechanismen, einen für jede der gleichzeitig verarbeiteten Kathoden (5), gebildet ist,
    wobei jeder Waschmechanismus eine Waschvorrichtung und zweite Vorschubmittel befestigt, die für den Transport jeder Kathode (5) vom zweiten Übertragungsmechanismus (8.2) durch den Waschrahmen (15) und zum Ausgabemechanismus (9) zuständig sind, wobei diese zweiten Vorschubmittel durch einen Schwingbalken gebildet sind.
  10. Kathodenenabisoliermaschine (3), nach Anspruch 9, dadurch gekennzeichnet, dass, die Waschvorrichtung einen Hebemechanismus, der durch einen mobilen Wagen gebildet ist, der mittels vertikaler Schienen geführt wird, eine Unterbaugruppe von Bürsten, die an Pleueln befestigt sind, und ein Bewässerungssystem umfasst, das durch eine Reihe von Verteilern gebildet ist, die mit Sprühdüsen versehen sind.
  11. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Schichtaufnahmesystem (10) der zweiten Ebene (2) ein Dämpfungssystem der Schichten umfasst, das durch eine mittels eines pneumatischen Balgs betätigte Luke und ein Schichtbegleitungssystem gebildet ist.
  12. Kathodenenabisoliermaschine (3), nach Anspruch 11, dadurch gekennzeichnet, dass das Schichtaufnahmesystem (10) zwei Radpaare stromabwärts des Dämpfungssystems umfasst, die mittels elektrischer Getriebemotoren betätigt werden, um die Fallgeschwindigkeit der Schichten zu steuern.
  13. Kathodenenabisoliermaschine (3), nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet die Schichtentfernungsstation (12) einen feststehenden Aufnahmerahmen, einen Aufnahmeroboter und eine Führungsvorrichtung umfasst.
EP16891324.2A 2016-02-25 2016-02-25 Kathodenabisoliermaschine Active EP3438329B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2016/070125 WO2017144740A1 (es) 2016-02-25 2016-02-25 Máquina de arrancado de cátodos

Publications (3)

Publication Number Publication Date
EP3438329A1 EP3438329A1 (de) 2019-02-06
EP3438329A4 EP3438329A4 (de) 2020-04-01
EP3438329B1 true EP3438329B1 (de) 2020-12-16

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EP16891324.2A Active EP3438329B1 (de) 2016-02-25 2016-02-25 Kathodenabisoliermaschine

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EP (1) EP3438329B1 (de)
ES (1) ES2863596T3 (de)
MX (1) MX2017000941A (de)
RU (1) RU2708280C1 (de)
WO (1) WO2017144740A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113969416B (zh) * 2021-10-18 2023-02-21 广东先导稀材股份有限公司 一种阴极板自动化处理生产线

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
SU102841A1 (ru) * 1955-05-03 1955-11-30 П.Н. Быков Машина дл сдирки осадка цинка с катодного листа
US3807020A (en) * 1973-01-22 1974-04-30 Metallo Chimique Sa Apparatus for stripping cathode starting plates
SU1017744A1 (ru) * 1981-08-10 1983-05-15 Северо-Кавказский горно-металлургический институт Устройство дл сдирки катодных осадков
ES2112713B1 (es) * 1994-05-31 1998-10-16 Asturiana De Zinc Sa Instalacion para desprender las capas electrodepositadas sobre catodos.
CA2349394C (en) * 2001-05-30 2009-09-01 Aisco Systems Inc. Mobile zinc cathode stripping system
CA2553004C (en) * 2004-01-21 2011-05-03 Falconbridge Limited Method and apparatus for stripping electrodeposited metal sheets from permanent cathodes
EP2141265A1 (de) * 2008-07-04 2010-01-06 Technic One S.A. Ablösevorrichtung und Verfahren zur Entfernung einer elektrolytisch abgelagerten Metallschicht von einer Kathodenplatte
CN101717973A (zh) * 2009-12-23 2010-06-02 江西瑞林装备技术有限公司 不锈钢阴极剥片装置
WO2014019070A1 (en) * 2012-08-01 2014-02-06 Stephan Frank Matusch Method and apparatus for starter sheet stripping
WO2014072540A1 (es) * 2012-11-06 2014-05-15 Zincobre Ingeniería, S.L.U Dispositivo y método para el pre-arrancado de láminas metálicas depositadas sobre cátodos

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
MX2017000941A (es) 2018-02-09
EP3438329A4 (de) 2020-04-01
RU2708280C1 (ru) 2019-12-05
EP3438329A1 (de) 2019-02-06
ES2863596T3 (es) 2021-10-11
WO2017144740A1 (es) 2017-08-31

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