EP0159091B1 - Verfahren und Vorrichtung zum Stapeln verbrauchter Anoden - Google Patents

Verfahren und Vorrichtung zum Stapeln verbrauchter Anoden Download PDF

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Publication number
EP0159091B1
EP0159091B1 EP85200553A EP85200553A EP0159091B1 EP 0159091 B1 EP0159091 B1 EP 0159091B1 EP 85200553 A EP85200553 A EP 85200553A EP 85200553 A EP85200553 A EP 85200553A EP 0159091 B1 EP0159091 B1 EP 0159091B1
Authority
EP
European Patent Office
Prior art keywords
anodes
anode
hooks
lugs
spent
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
EP85200553A
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English (en)
French (fr)
Other versions
EP0159091A1 (de
Inventor
Constant Theresia Verhoeven
Carolus M-Th. L. Hens
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.)
Metallurgie Hoboken-Overpelt SA
Original Assignee
Metallurgie Hoboken-Overpelt SA
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Filing date
Publication date
Application filed by Metallurgie Hoboken-Overpelt SA filed Critical Metallurgie Hoboken-Overpelt SA
Publication of EP0159091A1 publication Critical patent/EP0159091A1/de
Application granted granted Critical
Publication of EP0159091B1 publication Critical patent/EP0159091B1/de
Expired legal-status Critical Current

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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

Definitions

  • the present invention relates to a method for stacking spent anodes, which comprises a spent electrolytic plate and a pair of suspension ears and which are suspended vertically by their ears from hooks, according to which method the spent anodes are, the one after the other, first lifted from the hooks by their ears and then brought from their vertical position to a substantially horizontal position.
  • the object of the present invention is to provide a method as defined above, which avoids the drawbacks of the known method.
  • the present invention also relates to an apparatus for stacking spent anodes, which comprises a spent electrolytic plate and a pair of suspension ears and which are suspended vertically by their ears from hooks, this apparatus comprising means for unhooking and rotation adapted to lift the exhausted anodes from the hooks by their ears, to rotate the raised anodes so as to bring them from their vertical position to a substantially horizontal position, and to release the turned anodes.
  • This known device comprises, in addition to the above-mentioned detachment and rotation means, a pair of conveyor chains, a rotary table and a stacking device.
  • the detachment and rotation means deposit the anodes on the conveyor chains, bringing them into the above-mentioned substantially horizontal position.
  • the conveyor chains move the deposited anodes to the top of the turntable.
  • the turntable lifts the anodes and rotates them alternately 90 ° and - 90 °.
  • the stacking device lifts the anodes from the turntable, moves them and deposits them on top of each other to form a stable stack.
  • An essential component of the release and rotation means is formed by elements for supporting the anode plate while the latter is brought into the substantially horizontal position. These support elements can range from a rest position to a work position and vice versa. These support elements must pass, in the working position, between the two conveyor chains at the moment when the release and rotation means deposit an anode on these chains, and they must pass between the chains, in the rest position, at the moment when the detachment and rotation means are raised to detach the next anode. Since the distance between the two chains is limited by the dimensions of the anodes, the support elements necessarily have reduced dimensions and, consequently, a limited field of action.
  • this known device is unable to process anodes, the plate of which is exhausted to such an extent that its surface is appreciably smaller than the surface of the new plate from which it originates, since such anodes do not exhibit support points for the aforementioned support elements. Such anodes could also not be carried by the conveyor chains.
  • This known device also has the drawback of being complicated and bulky and of requiring a large investment.
  • the object of the present invention is to provide an apparatus as defined above, which avoids the drawbacks of the known apparatus.
  • the anode stacks 9 formed at the stacking station 7 are removed at 10, and the stacks 11 formed at the station 8 at 12.
  • a spent anode 13 consists of a spent metal plate 14 provided with two suspension lugs 15.
  • the upper edge of the plate 14 and the suspension lugs 15, which have not been immersed in the electrolyte during the electrorefining of the original anode (see dotted lines) of which the spent anode 13 constitutes the waste, are naturally much thicker than the rest of the spent plate 14.
  • the plate 14 of a spent anode 13 may be as large as the plate of the original anode, but it may also be smaller, as shown in Figure 3, or even much smaller than that of the original anode.
  • the plates 14 of the spent anodes 13 can therefore have very different dimensions.
  • the median horizontal axis of an original anode or a new anode is considered to be the axis 16 which is located in the plane of the new anode at an equal distance D from the top of its ears and from the lower edge of its electrolytic plate (see Figure 3).
  • the loading station 3 shown in FIG. 2 comprises a pair of conveyor chains 17 provided with a motor not shown advancing the chains step by step in the direction of the arrow 18.
  • the spent anodes 13 to be washed coming from the electrolysis room are deposited in groups by a spreader 19 on the pair of chains 17, which brings the anodes 13 to a balance beam device ("walking beam") 20.
  • the latter lifts the anodes 13 one by one chains 17 and suspends them from the hooks 21 (see FIGS. 3 and 4) of the carriages 2, which bring them individually to the washing station 4.
  • the washing station 4 is analogous to the washing station for pairs of cathodes, which is described in the aforementioned patent application WO 83/02289 and which must simply be split to arrive at the present washing station 4.
  • This washing station 4 therefore comprises a washing compartment 22 and a rinsing compartment 23 provided with nozzles 24.
  • the control station 5 comprises means 25, for example opto-electronic means, for checking whether the plate 14 of the anode 13 includes the support points necessary for its subsequent processing at the stacking station 7 or 8.
  • the unloading station 6 includes means, for example a walking beam device 26, for. unhook the anodes 3 from the carriages 2, the plate 14 lacking the support points necessary for their subsequent processing at the stacking station 7 or 8.
  • the transport means 28 comprise a frame 31 mounted on a leg 32.
  • the frame 31 comprises two uprights 33 having an I-shaped profile and constituting a vertical raceway 34 for the wheels 35 of a carriage 36.
  • the carriage 36 is actuated by the rod 37 of the cylinder 38.
  • a fork 39 is attached to the carriage 36, the legs 40 and 40 ′ of which carry the release and rotation means 27.
  • the offset and rotation means 27 comprise a sheet 41 formed by two beams 42 and 42 ′ having a U-shaped profile and by a cross member 43.
  • a beam 44 is fixed a pivot 44 which extends through the end of the leg 40 of the fork 39.
  • the pivot 44 can be coupled to and decoupled from a coupling device 45, for example an electromagnetic coupling device.
  • the coupling device 45 is connected to the rod of a cylinder 46.
  • This cylinder 46 is mounted on the leg 40 of the fork 39. When the pivot 44 is decoupled from the coupling device 45, it can rotate freely.
  • the pivot 44 is coupled to the coupling device 45 and that the rod of the cylinder 46 is brought out, the pivot 44 performs, together with the pile 41, a rotation of 90 ° clockwise .
  • the pivot 44 When the cylinder rod 46 is then retracted, the pivot 44 performs, together with the pile 41, a rotation of 90 ° in the opposite direction.
  • a pivot 44' To the beam 42 'is fixed a pivot 44', which is in line with the pivot 44 and which extends through the end of the leg 40 'of the fork 39.
  • the pivot 44' can be coupled to and decoupled of a coupling device 45 '.
  • the coupling device 45 ' is connected to the rod of a cylinder 46'.
  • This cylinder 46 ' is mounted on the leg 40' of the fork 39.
  • a hook 47 and a movable fork 48 In the beam 42 of the hoist 41 are mounted a hook 47 and a movable fork 48.
  • This hook 47 and this fork 48 can be brought from a rest position, shown in dotted lines in Figure 8 and in solid lines in Figure 9, in a working position, shown in solid lines in Figure 8 and in dashed lines in Figure 9.
  • the rear of the fork 48 is rigidly fixed to a fin 49, which pivots on a fixed pivot 50 and which is connected at 51 to the rod of a cylinder 52.
  • the upper part of the hook 47 which ends in a pair of teeth 53, is connected at 54 by an articulated coupling to a fixed pivot 55, while its lower part is connected by a pivot 56 to the fin 49.
  • the hook 47 and the fork 48 are in the rest position, when the cylinder rod 52 is retracted (see FIG. 9), and in the working position, when the. cylinder rod 52 is extended (see Figure 8).
  • the beam 42 'of the hoist 41 also carries a hook 47', ending in a pair of teeth 53 '(see Figure 6), and a fork 48' as well as the elements necessary for their actuation, the assembly being the reflected image of what has just been described about the hook 47 and the fork 48.
  • the hoist 41 and its rotation system are designed so that, when a new anode is suspended by its ears from the hooks 47-47 'in the working position, the axis of rotation 80 of the beam substantially coincides with the median horizontal axis of the new anode.
  • the stacking means 29 comprise a frame 57 having two pairs of uprights 58 and 58 '.
  • the pair of uprights 58 is provided with a raceway for the wheels 59 of a carriage 60.
  • the pair of uprights 58 ' is provided with a raceway for the wheels 59' with a carriage 60 '.
  • the carriages 60 and 60 ' are interconnected by a first pair of chains 61 and a second pair of chains 62.
  • the chains 61 run from the carriage 60' to the carriage 60 passing around the rollers 63, 64 and 65, while the chains 62 do this by passing around rollers 66, 63 and 64 (see Figures 6 and 7).
  • the length of the chains 61 and 62 is such that the carriages 60 and 60 'are always at the same level.
  • the carriage 60 ' is actuated by a telescopic cylinder 67. Thanks to the system of chains and rollers described above, movement of the carriage 60' goes hand in hand with an identical movement of the carriage 60.
  • the carriage 60 is provided with two fins 68 , to which a support element 69 is fixed.
  • the carriage 60 ′ is also provided with two fins 68 ′, to which a support element 69 ′ is fixed.
  • the support elements 69 and 69 ′ are intended to carry the anodes 13 released by the offset and rotation means 27.
  • the discharge means 30 comprise a pair of endless chains 71 mounted on two pairs of sprockets, not shown. One of these pairs of pinions is driven by a motor, not shown.
  • Chains 71 are hollow axle chains with rollers, which are commercially available.
  • On the chains 71 are mounted pairs 72 of support elements 73, a pair 72 of support elements 73 being intended to receive a stack of anodes of the stacking means 29.
  • Each support element 73 is mounted on two successive axes of the chains 71 and is provided on its two sides with two wheels 74, for which the two beams 75 form an upper raceway and the two beams 76 a lower raceway.
  • the entire weight of the upper strand of the pair of chains 71 and its load is therefore carried by the beams 75, while the entire weight of the lower strand of the pair of chains 71 is carried by the beams 76.
  • the beams 75 and 76 are mounted on crosspieces 77, which together with two longitudinal members 78 form the frame of the evacuation means 30.
  • FIG. 1 further comprises detection devices known per se and not shown for detecting the arrival of an empty carriage 2 at the loading station 3 and the arrival of a carriage 2 loaded at the washing compartment 22, to the rinsing compartment 23, to the control station 5, to the unloading station 6, to the first stacking station 7 and to the second stacking station 8.
  • the detection device associated with the unloading station 6 does not enter in action only when the control station 5 has detected an exhausted anode which cannot be processed at station 7 or 8.
  • the detection device associated with the second stacking station 8 does not come into effect until the first station stack 7 is broken.
  • its motor 79 stops for a predetermined time T, for example for 5 seconds.
  • the installation works as follows. When an empty carriage 2 is detected at the loading station 3, it stops and the transporter device 20 comes into action and suspends an exhausted anode 13 in the carriage 2. After a time T, the loaded carriage 2 leaves the loading station 3 to go to the washing station 4. When the loaded cart 2 is detected in the washing compartment 22, it stops and the nozzles 24 of this compartment come into action. After a time T, these nozzles cease their action and the carriage 2 passes to the rinsing compartment 23. When the carriage 2 is detected in the rinsing compartment 23, it stops and the nozzles 24 from this compartment come into action. After a time T, these nozzles cease their action and the carriage 2 passes to the control station 5.
  • the control means 25 When the carriage 2 is detected at the control station 5, it stops and the control means 25 come into action and check whether the plate 14 of the spent anode 13 suspended from the carriage 2 comprises a fulcrum for at least one of the forks 48 and 48 'in the working position. If the control means 25 do not detect this fulcrum, that is to say when the plate 14 of the anode 13 is so exhausted that it would not be supported by at least one of the forks 48 and 48 ', if the anode 13 was suspended by its ears 15 from the hooks 47 and 47' and if the hoist 41 was in a position other than vertical, the anode 13 cannot be processed at the stacking station 7 or 8.
  • the detection device associated with the unloading station 6 comes into action and the carriage 2 leaves the control station 5 after a time T.
  • the carriage 2 is then detected at the unloading station 6, it stops and the balance beam transporter 26 detaches the anode 13 from the carriage 2 and drops it into a basket, not shown.
  • the unloaded carriage 2 leaves the unloading station 6 and returns, passing through the stacking stations 7 and 8, the loading station 3.
  • the rod 37 of the cylinder 38 retracts, the sheet 41 returns to its lower release position, shown in dotted lines in FIG. 6, the ears 15 of the anode 13 carried by the sheet now being located in the guide elements 70.
  • the rods cylinders 52-52 'retract and the anode 13 falls on the previous anode. The cycle described above can start again.
  • the telescopic cylinder 67 retracts so that the upper anode remains a few centimeters below the release position of the hoist 41.
  • the telescopic cylinder 67 retracts completely and the stack of anodes is thus deposited on a pair 72 of support elements 73 of the evacuation means 30.
  • the chains 71 of the evacuation means 30 move while evacuating thus the stack of anodes, the telescopic cylinder 67 comes out and the formation of a stack of anodes on the supports 69-69 'can start again.
  • the monorail 1 and the carriages 2 can be replaced by a transport chain provided with pairs of hooks, but this modification would also reduce the flexibility of the installation.
  • the telescopic cylinder 67 can be replaced by a conventional cylinder, but the latter would be more bulky than the telescopic cylinder.
  • the unloading station 6 can be placed downstream of the stacking stations 7 and 8 by means of an ad hoc modification of the installation control system.

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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 (9)

1. Verfahren zum Stapeln verbrauchter Anoden (13), die eine verbrauchte elektrolytische Platte (14) und ein Paar Aufhängeohren (15) aufweisen und mit ihren Aufhängeohren vertikal an Haken (21) aufgehängt sind, wobei gemäss diesem Verfahren die verbrauchten Anoden eine nach der anderen zunächst mittels ihrer Aufhängeohren aus den Haken angehoben werden und dann aus ihrer vertikalen Stellung in eine wesentlich horizontale Stellung übergeführt werden, dadurch gekennzeichnet,
dass man die angehobenen Anoden abwechselnd um 90° und - 90° um eine horizontale Achse (80) dreht, die beim Ersetzen der verbrauchten Anoden durch neue Anoden, aus welchen sie stammen, wesentlich zusammenfallen würde mit der mittleren horizontalen Achse der neuen Anoden, die gelegen ist in der Ebene der neuen Anoden in einem gleichen Abstand von der Spitze ihrer Aufhängeohren und dem unteren Rand ihrer elektrolytischen Platte,
dass man die gedrehten Anoden bis zu einer unteren Stellung absenkt,
dass man die Anoden in der unteren Stellung loslässt,
dass man eine Auflage (69, 69') unter dieser unteren Stellung vorsieht, auf der sich die losgelassenen Anoden stapeln,
und dass man diese Auflage in der Weise absenkt, dass die Spitze des gebildeten Anodenstapels unterhalb der genannten unteren Stellung bleibt.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man die Aufhängeohren der Anode während des Loslassens daran hindert, sich wesentlich zu verschieben.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass man die Aufhängeohren der Anoden, die gerade losgelassen wurden, während ihres Falls zu der genannten unteren Stellung zur Spitze des genannten Anodenstapels führt.
4. Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass man vor dem Anheben der verbrauchten Anoden aus den Haken prüft, ob sie tauglich sind für die Behandlung durch die Mittel, die zum Drehen der angehobenen Anoden vorgesehen sind.
5. Vorrichtung (5, 7) zum Stapeln verbrauchter Anoden (13), die eine verbrauchte elektrolytische Platte (14) und ein Paar Aufhängeohren (15) aufweisen und mit ihren Aufhängeohren vertikal an den Haken (21) aufgehängt sind, wobei diese Vorrichtung Mittel. (27) umfasst zum Aushaken und zum Drehen, die eingerichtet sind, die verbrauchten Anoden (13) mittels der Aufhängeohren (15) aus den Haken (21) anzuheben, die angehobenen Anoden so zu drehen, dass sie aus ihrer vertikalen Stellung in eine wesentlich horizontale Stellung übergeführt werden und die gedrehten Anoden loszulassen, gekennzeichnet durch folgende Merkmale :
die Mittel zum Aushaken und Drehen (27) sind ausgebildet zum Drehen der angehobenen Anoden abwechselnd um 90° und um - 90° um eine horizontale Achse (80), die beim Ersetzen der verbrauchten Anoden durch neue Anoden, aus welchen sie stammen, wesentlich zusammenfallen würde mit der mittleren horizontalen Achse (16) der neuen Anoden, die gelegen ist in der Ebene der neuen Anoden in einem gleichen Abstand von der Spitze ihrer Aufhängeohren und dem unteren Rand ihrer elektrolytischen Platte ;
erste Transportmittel (28, 31-40, 40'), ausgebildet zur vertikalen Verschiebung der Mittel zum Aushaken und zum Drehen (27) zwischen einer oberen Aushakstellung der aufgehängten Anode und einer unteren Stellung zum Loslassen der gedrehten Anode ;
Mittel zur Auflage (69, 69') unterhalb der genannten unteren Stellung und
zweite Transportmittel (58-68, 58'-60', 68'), ausgebildet zur vertikalen Verschiebung der Transportmittel.
6. Vorrichtung nach Anspruch 5, gekennzeichnet durch Führungselemente (70, 70'), die so ausgebildet sind, dass sie die Aufhängeohren (15) der Anode (13), die sich in der unteren Stellung des Loslassens befindet, daran hindern, eine wesentlich horizontale Bewegung auszuführen.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass sich die Führungselemente (70, 70') nach unten erstrecken.
8. Vorrichtung nach Anspruch 5, 6 oder 7, gekennzeichnet durch Mittel (5, 25) zur Prüfung der an den Haken (21) aufgehängten verbrauchten Anoden (13), ob sie in geeignetem Zustand sind für die Handhabung durch die Mittel zum Aushaken und Drehen (27).
9. Vorrichtung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass die Mittel zum Aushaken und Drehen folgende Merkmale aufweisen :
ein Joch (41, 42, 42', 43),
eine erste am Joch (41) befestigte Schwenkachse (44),
erste Antriebsmittel (46) zum Drehen der ersten Schwenkachse (44) zunächst um 90° im Uhrzeigersinn und dann um 90° im entgegengesetzten Sinn, oder umgekeht,
erste Kupplungsmittel (45) zur Verbindung der ersten Schwenkachse (44) mit den ersten Antriebsmitteln (46), sowie zur Entkupplung dieser Mittel,
eine zweite am Joch (41) befestigte Schwenkachse (44'), in Linie mit der ersten Schwenkachse (44),
zweite Antriebsmittel (46') zum Drehen der zweiten Schwenkachse (44'), zunächst um 90° im Uhrzeigersinn und dann um 90° im umgekehrten Sinn, oder umgekehrt,
zweite Kupplungsmittel (45') zur Verbindung der zweiten Schwenkachse (44') mit dem zweiten Antriebsmittel (46'), sowie zur Entkupplung dieser Mittel,
ein Paar von Haken (47, 47', 53, 53'),
ein Paar von Gabeln (48, 48') und
auf dem Joch (41) montierte Mittel (49, 50, 51, 52, 52', 54, 55) zum Heranführen der Haken und Gabeln von einer Ruhestellung in eine Arbeitsstellung und umgekehrt.
EP85200553A 1984-04-17 1985-04-10 Verfahren und Vorrichtung zum Stapeln verbrauchter Anoden Expired EP0159091B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU85321 1984-04-17
LU85321A LU85321A1 (fr) 1984-04-17 1984-04-17 Procede et appareil pour empiler des anodes epuisees

Publications (2)

Publication Number Publication Date
EP0159091A1 EP0159091A1 (de) 1985-10-23
EP0159091B1 true EP0159091B1 (de) 1987-05-27

Family

ID=19730250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85200553A Expired EP0159091B1 (de) 1984-04-17 1985-04-10 Verfahren und Vorrichtung zum Stapeln verbrauchter Anoden

Country Status (6)

Country Link
US (1) US4657464A (de)
EP (1) EP0159091B1 (de)
JP (1) JPS60234990A (de)
CA (1) CA1234844A (de)
DE (1) DE3560201D1 (de)
LU (1) LU85321A1 (de)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944655A (en) * 1955-09-13 1960-07-12 Smith Corp A O Apparatus for unloading articles from a moving conveyor
SE315418B (de) * 1966-02-08 1969-09-29 Wennbergs C Mekaniska Verkstad
US3770144A (en) * 1971-12-06 1973-11-06 Owens Illinois Inc Corrugated board bundle stacker
AT321075B (de) * 1972-08-18 1975-03-10 Evg Entwicklung Verwert Ges Vorrichtung zum Wenden und Stapeln von aus einer Gitterproduktionsmaschine austretenden Gittermatten
GB1449545A (en) * 1974-01-15 1976-09-15 Bicc Ltd Electrolytic refining of metal
US4020944A (en) * 1974-02-14 1977-05-03 Mitsui Mining & Smelting Co., Ltd. Transporting apparatus
GB1523983A (en) * 1976-04-29 1978-09-06 Onahama Seiren Kk Conveying electrodes for electrolytic cells in electrorefining
DE2752372A1 (de) * 1977-11-24 1979-06-07 Womako Masch Konstr Vorrichtung zum ansammeln von gebundenen bloecken aus papier
JPS5675323A (en) * 1979-11-20 1981-06-22 Mitsui Kinzoku Eng Kk Method and device for piling scrap of anode plate
LU83857A1 (fr) * 1981-12-24 1983-09-02 Metallurgie Hoboken Appareil pour laver et empiler des electrodes

Also Published As

Publication number Publication date
CA1234844A (en) 1988-04-05
LU85321A1 (fr) 1985-11-27
EP0159091A1 (de) 1985-10-23
DE3560201D1 (en) 1987-07-02
US4657464A (en) 1987-04-14
JPH041077B2 (de) 1992-01-09
JPS60234990A (ja) 1985-11-21

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