WO2010063071A1 - Procédé et dispositif pour séparer un métal d’une cathode - Google Patents

Procédé et dispositif pour séparer un métal d’une cathode Download PDF

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Publication number
WO2010063071A1
WO2010063071A1 PCT/AU2009/001574 AU2009001574W WO2010063071A1 WO 2010063071 A1 WO2010063071 A1 WO 2010063071A1 AU 2009001574 W AU2009001574 W AU 2009001574W WO 2010063071 A1 WO2010063071 A1 WO 2010063071A1
Authority
WO
WIPO (PCT)
Prior art keywords
separator
cathode
deposited metal
cathode member
generally cylindrical
Prior art date
Application number
PCT/AU2009/001574
Other languages
English (en)
Inventor
John Bosscher
Original Assignee
Electrometals Technologies Limited
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
Priority claimed from AU2008906271A external-priority patent/AU2008906271A0/en
Application filed by Electrometals Technologies Limited filed Critical Electrometals Technologies Limited
Publication of WO2010063071A1 publication Critical patent/WO2010063071A1/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
    • 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 relates to a method and an apparatus for separating a deposit of metal from a cathode.
  • an electrochemical apparatus in which an electric current flows between and anode and a cathode. This results in the deposition of metal onto the cathode. As the electrowinning or electrorefining continues, the thickness of the deposited metal on the cathode increases. After the thickness of the deposited metal on the cathode has increased to a desired amount, the cathode is removed from the electrochemical cell and the deposited metal is stripped from the cathode. In processes that use reusable cathodes, the stripped cathodes are then returned to the electrochemical cell.
  • the cell includes a central anode, which typically takes the form of a cylindrical anode extending along the majority of the length of the cell.
  • the central anode is made from a metal that does not take part in the electrochemical reaction.
  • the anode is surrounded by a cathode.
  • the cathode is in the form of a hollow cylinder having an inner wall that is spaced from the anode.
  • the cathode is positioned in close proximity or in abutment with the inner wall of the housing.
  • the cathode may comprise a split sleeve cathode.
  • the solution is fed to the electrochemical cell in a tangential direction so that the solution flows in a spiral pattern through the cell. Passage of electrical current through the cell causes metal to be deposited on the inner wall of the cathode. A solution containing a depleted concentration of metal leaves the cell through the outlet.
  • the flow of solution and electric current to the cell is stopped.
  • An end cap is removed from the cell and the cathode removed via the open end. Normally, it is the upper end cap that is removed.
  • the deposited metal is then stripped from the generally cylindrical cathode
  • the present invention provides an apparatus for separating a deposit of metal deposited on an inside of a generally cylindrical cathode member, the apparatus comprising a separator adapted to be positioned such that an edge thereof is positioned adjacent a junction between the deposited metal and the generally cylindrical cathode member, an axial drive means for causing relative axial movement between the separator and the generally cylindrical cathode member and a rotator for causing relative rotation between the separator and the deposited metal or the generally cylindrical cathode means.
  • the separator is positioned such that an edge of the separator is positioned adjacent to a junction between the deposited metal and the cathode member. Relative axial movement between the separator and the cathode member and relative rotational movement between the separator and either the cathode member or the deposited metal results in the separator physically separating the deposited metal from the cathode member.
  • the axial drive means causes the separator to move in an axial direction.
  • the separator may move from a non-engaged position in which the separator is located above the cathode member in a direction that is axially downwardly to thereby bring the separator into contact with the cathode member and the deposited metal.
  • Continued downward axial movement of the separator causes the separator to move downwardly between the cathode member and the deposited metal to thereby force the deposited metal and cathode member apart from each other.
  • Relative rotation of either the cathode member or the deposited metal relative to the separator further separates the deposited metal from the cathode member.
  • the axial drive means may cause axial movement of the separator.
  • the axial drive means may move the separator in a downwards direction and in a direction to remove the separator from the cathode once the deposited metal has been separated from the cathode member.
  • the axial drive means may include an electric motor, an internal combustion motor, a hydraulic motor, a pneumatic motor, an extendable and retractable ram, such as a hydraulic or pneumatic ram, a linear drive, a rack and pinion drive, a worm gear drive and the like.
  • the relative axial movement and the relative rotation may comprise the following:
  • the apparatus further comprises a gripper for gripping the interior of the deposited metal.
  • the gripper may extend into the deposited metal.
  • the gripper may include one or more gripping surfaces movable between a first position in which the gripping surfaces do not engage the inner surface of the deposited metal and a second position in which the one or more gripping surfaces contact or engage the inner surface of the deposited metal to thereby grip an inner surface of the deposited metal.
  • the gripper may comprise a plug for inserting into the deposited.
  • the plug may be made from a high friction material, such as rubber or the like. The plug may taper.
  • the gripper may be mounted to a rotatable member. In this fashion, operation of the rotatable member causes the gripper to rotate which, in turn, causes the deposited metal that has been gripped by the gripper to rotate together with the gripper. In this fashion, relative rotational movement between the deposited metal and the separator can be achieved.
  • the rotatable member may comprise a rotating table that is driven by a drive motor.
  • the rotating table may comprise a rotating slewing ring bearing.
  • the rotating member may f fnorrmm p naarrtt n off t thhpe r rnottaattnorr.
  • the rotator may cause rotation of the cathode member.
  • the rotator may include a gripper for gripping the cathode.
  • the rotator may include a drive for causing rotation of the rotator.
  • the drive may comprise an electric motor, an internal combustion motor, a hydraulic motor or a pneumatic motor.
  • the separator may comprise a generally vertically mounted elongate member having a semi circular profile when viewed from above.
  • a separating knife may be formed on or mounted to the lower end of the separator.
  • the separating knife may have a sharp leading edge to facilitate positioning of that edge at the junction between the generally cylindrical cathode member and the deposited metal.
  • the sharp leading edge also facilitates passage of the separator between the deposited metal and the cathode member as the separator is moved axially relative to the cathode member. This also facilitates separation of the deposited metal from the cathode member.
  • the separator may have a length that it is similar to the length of the cathode member. Desirably, the separator may be longer than the length of the cathode member.
  • the separator may comprise a knife blade, a thin plate, a curved plate, a tapered member, a rod having a tapered end or a sharp edge, or indeed any other device that can be inserted between the deposited metal and the cathode.
  • the generally cylindrical cathode members comprise split sleeves. In these embodiments, separation of the deposited metal from the split sleeve may result in the split sleeve been forced to a more open orientation.
  • the apparatus may further comprise closing means for closing the split sleeve.
  • the closing means may comprise bearing elements that bear upon an outer surface of the split sleeve to thereby close the split sleeve.
  • the bearing elements may comprise one or more rollers.
  • the one or more rollers may be moved from a first position in which the one or more rollers do not contact the split sleeve to a second position at which the one or more rollers contact the split sleeve to thereby close the split sleeve.
  • the one more rollers may rotate at least partly around an outer periphery of the split sleeve.
  • the split sleeve may be caused to rotate against the bearing elements.
  • the closing means comprises a surface that comes into contact with the outer surface of the split sleeve.
  • the contact surface may be caused to rotate relatively to the split sleeve or be caused to move axially relative to the split sleeve.
  • the closing means may comprise a contact surface that contacts the outer surface of the split sleeve.
  • the contact surface may comprise a generally flat surface or a curved surface.
  • the closing means and the cathode may rotate relative to each other.
  • the closing means may comprise a truncated cone that moves axially relative to the split sleeve and closes the split sleeve as a result of contact and relative axial movement.
  • the apparatus may further comprise a contactor for contacting an upper part of the cathode sleeve prior to insertion of the separator.
  • the contactor suitably contacts part of the cathode sleeve and slightly moves that part of the cathode away from the separator. In this fashion, when the separator is inserted, the risk of the separator causing bending of the top corner of the cathode sleeve is minimised.
  • the contactor may comprise a roller mounted on a multi-axis retractable arm.
  • the contactor may comprise a pair of rollers mounted on a multi-axis retractable arm. One roller may contact an inner top edge of the cathode sleeve to "push" it away from the deposited metal. The second roller will counteract this force by providing a reaction portion against the inside of the deposited metal.
  • the present invention provides a method for separating a deposit of metal deposited inside a generally cylindrical cathode member, the method comprising positioning a separator between the generally cylindrical cathode member and the deposited metal, moving the separator in an axial direction relative to the cathode member and causing relative rotation between the separator and the generally cylindrical cathode member or the deposited metal to thereby separate the deposited metal from the generally cylindrical cathode member.
  • the method further comprises the step of positioning a gripper inside the deposited metal and cathode member and gripping an interior surface of the deposited metal prior to separating the deposited metal from the cathode member.
  • Figure 1 shows a perspective view of an apparatus in accordance with an embodiment of the present invention
  • Figure 2 shows a side view of the apparatus shown in figure 1 ;
  • Figure 3 shows a plan view of the apparatus shown in figure 1 ;
  • Figure 4 shows a perspective view of the apparatus shown in figure 1 with the safety guard and some panelling removed for clarity purposes;
  • Figure 5 shows a side cross sectional view of the apparatus shown in figure 4.
  • Figure 6 shows a perspective view of the separator used in the apparatus shown in figures 1 to 5;
  • Figure 7 shows a front view of the separator shown in figure 6
  • Figure 8 shows a perspective view of the knife portion of the separator shown in figures 6 and 7;
  • Figure 9 shows a perspective view of the gripper and rotating table of the apparatus shown in figure 1 ;
  • Figure 10 shows a front view of the apparatus shown in figure 9;
  • Figure 1 1 shows a cross-sectional side view of the apparatus shown in figure 9;
  • Figure 12 shows a side view of the split sleeve rollers used in the apparatus shown in figure 1 ;
  • Figure 13 shows a perspective view of the pre-opening rollers used in the apparatus shown in figure 1 ;
  • Figure 14 shows a side view of the apparatus shown in figure 13;
  • Figure 15 shows a plan view of the apparatus shown in figure 13;
  • Figure 16 shows a perspective view of the machinery guard used in the apparatus shown in figure 1.
  • the apparatus 10 shown in figures 1, 2 and 3 comprises an apparatus for harvesting deposited metal from a split sleeve cylindrical cathode.
  • the split sleeve cylindrical cathode may be as described in our US patent no 5529672.
  • the apparatus 10 includes a separator 12.
  • the separator 12 is connected to an axial drive means 14.
  • the axial drive means 14 is in the form of a linear drive and can move the separator 12 in a generally vertical direction, both upwardly and downwardly.
  • the separator 12 and axial drive means 14 are mounted to a frame 16, which for convenience will hereinafter referred to as separator frame 16.
  • the apparatus also includes a rotator 18.
  • a gripper 20 (see figure 5) for gripping the interior of the deposited metal is mounted to the rotator.
  • the gripper can be actuated such that it selectively contacts or engages with the deposited metal and releases the deposited metal.
  • the apparatus also includes a contactor 22, in the form of a pair of rollers mounted on a multi-axis retractable arm.
  • the contactor 22 assists in minimising the likelihood of causing bending over of an upper corner of the split sleeve cathode during insertion of the separator between the cathode and the deposited metal.
  • the various drives for driving the movement of the separator and the rotator may comprise electric motor drives, hydraulic drives, pneumatic drives, or indeed any other suitable drives known to be useful to the person skilled in the art.
  • the apparatus 10 is mounted to a frame 24.
  • the frame 24 may include apertures 26 for receiving the tines of a forklift to facilitate transport of the apparatus.
  • the frame 24 may be provided with adjustable feet 28 to enable easy levelling of the apparatus.
  • the frame may also carry a cabinet 30 for storing or housing drives, electrics, control equipment (such as solenoids, etc) and the like.
  • a control panel 32 may be provided at a convenient height to facilitate easy control and operation of the apparatus.
  • a safety frame 34 is provided to lower the risk of operators becoming caught in the apparatus and to meet occupational health and safety guidelines.
  • Figures 4 and 5 show the apparatus 10 with the safety frame 34 removed. Some of the features shown in figures 1, 2 and 3 have also been removed from figures 4 and 5 for clarity.
  • the frame 24 comprises frame members 40, 42 (which also define the forklift apertures 26). Frame members 40, 42 are interconnected by cross members 44, 46.
  • the frame also includes uprights 50, 52 and 54. It will be appreciated that another upright is positioned opposite upright 54, but this upright is hidden in figures 4 and 5.
  • the uprights support another rectangular frame at their upper ends.
  • Frame member 55 which is shown in figure 5, is one of the frame members that forms this upper rectangular frame.
  • the upper rectangular frame supports a support plate 56.
  • the various frame members may be joined together by welding, bolting or by any other method known to be suitable to the person skilled in the art.
  • the support plate 56 carries the separator frame 16.
  • the separator frame 16 includes a bottom plate 60 that is mounted to the support plate 56.
  • Bottom plate 60 is mounted to the support plate 56 via runners 62.
  • the bottom plate 60 can move backwards and forwards along runners 62 so that the horizontal position of the separator frame 16 can be adjusted.
  • the separator frame 16 is moved rearwardly (in the direction of arrow 63 shown in figure 5) so that the separator 12 is positioned away from the cathode. This enables removal of the cathode and loading of a fresh cathode.
  • the separator frame 16 is moved forwardly (in the direction opposite to arrow 63 shown in figure 5) so that the separator is correctly positioned to enable the separator to be inserted between the deposited metal and the cathode.
  • a drive motor or a pneumatic cylinder 64 is used to move the separator frame 16 forwardly and rearwardly.
  • the drive motor or pneumatic cylinder may engage with a rack and pinion drive, a worm screw drive or similar drive to cause the forwardly and rearwardly movement of the separator frame 16.
  • the separator frame 16 also includes vertical plate 66 that has upright member 68, which may be a rodless cylinder, mounted thereto.
  • Upright member 68 carries a linear bearing 70.
  • the linear bearing 70 has a separator support 72 mounted thereto.
  • the separator support 72 engages with an axial drive to enable the separator support 72 to move upwardly and downwardly.
  • the axial drive may comprise a ball screw and drive package.
  • the ball screw and drive package may include an electric motor, a hydraulic motor or a pneumatic motor.
  • the separator support 72 may be mounted on a hydraulic ram or a pneumatic ram, with extension and retraction of the ram causing movement of the separator support upwardly and downwardly.
  • the separator support 72 carries the separator 16.
  • the separator 16 is shown in greater detail in figure 6, 7 and 8.
  • the separator 16 includes a separator body 74.
  • the separator body 74 takes the form of a semi-cylindrical member.
  • the semi cylindrical member is shaped such that its shape is generally similar to the shape of the inner surface of the cathode sleeve.
  • the separator body 74 has a flange 76 at its upper end.. Flange 76 enables the separator body 74 to be mounted to the separator support 72.
  • the separator body 74 is provided at its lower part with a separator knife 78.
  • separator knife 78 has a profile that is generally coincident with the profile of separator body 74.
  • the separator knife 78 is provided with a number of apertures 80 at its upper part. These apertures can be brought into register with similar apertures formed in the lower part of separator body 74 and fasteners, such as rivets, screws, bolts or the like, can then be used to join the separator knife 78 to the separator body 74.
  • the separator knife 78 includes a sharpened lower edge 82.
  • the separator knife 78 also includes tapering side walls 84, 86 that extend into the generally vertical side walls of the remainder of the separator knife (and the separator body).
  • the sharpened edge 82 and the tapering side walls 84, 86 of separator knife 78 facilitate insertion of the separator knife between the sleeve and the deposited metal.
  • the separator knife may be formed integrally with the separator body 74.
  • provision of a separate separator knife is desirable as replacement of worn separator knives becomes possible.
  • the frame 24 also carries a table 90.
  • Table 90 may be in the form of a plate that is welded to the underside of frame the members 40, 42.
  • Table 90 carries rotator 18.
  • Rotator 18 may include vertical support legs 92 that carry a stationary plate 94.
  • Stationery plate 94 mounts a rotating slew bearing 96.
  • Rotating slew bearing is able to rotate. It can also accommodate a degree of wobble during harvesting of the metal from the cathode.
  • a servo motor 98 (that is also mounted to frame 24) drives a gearbox 100 which, in turn, causes a toothed wheel, cog or pulley 102 to rotate.
  • a belt drive (not shown) within drives another toothed wheel, cog or pulley 104 to thereby cause rotation of rotating drive shaft 106.
  • Rotating drive shaft 106 is connected to rotating Ring 108.
  • Rotating ring 108 has disc 1 10 mounted there too.
  • Disc 1 10 carries cathode guides 1 12 that locate the split sleeve in position.
  • Disc 1 10 also carries gripper 20.
  • Gripper 20 is in the form of an upright cylindrical projection having a main shaft 1 14 having an expanding rubber sleeve 1 16 mounted on upper part thereof.
  • An upper cap 118 is mounted above the expanding rubber sleeve 1 16.
  • Upper cap 1 18 has an internal recess 120 (see figure 1 1) that is connected to a pneumatic cylinder 122 that is mounted inside main shaft 1 14 of gripper 12.
  • Pneumatic cylinder 122 may be replaced by a hydraulic cylinder or by a mechanical drive.
  • the upper part of the pneumatic cylinder 122 is connected via boss 124 to a connecting shaft 126 that, in turn, is connected to bearing member 128.
  • Bearing member 128 is fixed vertically relative to end cap 1 18, but can rotate within recess 120 of end cap 1 18.
  • the lower end of pneumatic cylinder 122 is mounted so that it can rotate relative to rotating ring 108.
  • a cathode having metal deposited thereon is placed over the gripper 20.
  • the cathode guides 112 contact the lower end of the cathode sleeve and guide the lower end of the cathode sleeve to the correct position.
  • the pneumatic cylinder 122 is then actuated to decrease the overall height of the gripper 20.
  • the pneumatic cylinder may be operated such that its upper end moves from a position shown at line 130 in figure 11 to position as shown at line 132 in figure 1 1.
  • This causes the expanding rubber sleeve 1 16 to be shortened in height and to expand outwardly and come into firm contact with the inner surface of the metal deposited on the cathode.
  • This acts to tightly grip onto the inner surface of the metal on the cathode and effectively hold the deposited metal in a fixed position relative to the gripper 20.
  • the gripper 20 is caused to rotate which also causes the deposited metal to rotate.
  • a pneumatic hose connector 134 is provided to enable a pneumatic hose to be placed into fluid communication with pneumatic cylinder 122.
  • the apparatus 10 is also provided with a plurality of rollers 140 that bear upon the outer surface of the cathode sleeve.
  • these rollers are rubber, with three rollers 140 being mounted vertically on a common shaft 142.
  • This shaft 142 is mounted via shaft supports 144 to an upright angle member 146.
  • the shaft supports 144 may be pivotally mounted to the angle member 146 so that the rollers 140 can be selectively brought into contact with the outer surface of the cathode sleeve and moved away from the outer surface of the cathode sleeve.
  • the rollers 140 are used to close the cathode sleeve to a desired closed configuration after the deposited metal has been separated from the cathode so that the cathode is placed in an orientation that allows for re-insertion into an electrochemical cell.
  • the apparatus 10 also includes a contactor 22.
  • Figures 13, 14 and 15 show the contactor 22 in greater detail.
  • the contactor 22 is arranged such that it effectively holds and protects the upper end of the cathode sleeve prior to insertion of the separator between the cathode sleeve and the deposited metal. In this fashion, the contactor 22 provides support to the upper end of the cathode sleeve and minimises the likelihood of a corner of the cathode sleeve being bent over by operation of the separator.
  • the contactor may also act to pop out the edge of the split sleeve so that the separator can slide down the edge of the sleeve.
  • Upright support 150 may take the form of an upright angle member which is mounted to frame member 42.
  • the contactor 22 includes a body 152 that is mounted via a member 153 to housing 154.
  • Housing 154 includes pneumatic connectors 156, 158 that enable the housing to be connected to a pneumatic air supply. Actuation of the pneumatic air supply allows the body 152 to move vertically upwardly and downwardly under the control of the operator. In some embodiments, the body 152 may move upwardly and downwardly to a total extent of approximately 2 cm.
  • the contactor 22 also includes a rotatable arm 160.
  • rotatable arm 160 is movable between a first position (as shown in solid outline) and a second position (as shown in phantom outline).
  • the rotatable arm can move through an arc of approximately 120 to 150°.
  • the rotatable arm 160 is pivotally mounted about point 162.
  • the arm 160 may be rotated using pneumatic means, hydraulic means or a mechanical drive means.
  • the arm 160 carries two rollers 164, 166.
  • the rollers 164, 166 are mounted to a U- bracket 168 that is, in turn, mounted to the arm 160.
  • the U-bracket 168 carries a sleeve 170, with roller 164 being connected to sleeve 170.
  • a sliding arm 172 is slidably received in sleeve 170.
  • Sliding arm 172 carries roller 166.
  • a worm drive 174 (or a rack and pinion drive) can control the position of roller 166. In particular, the roller 166 can move towards and away from roller 164.
  • the contactor 22 When a cathode is first positioned on the apparatus 10, the contactor 22 is operated so that body 152 is raised to its highest extent. The arm 160 is then rotated such that roller 166 is positioned to the inside of the cathode sleeve and the roller 164 is positioned to the outside of the cathode sleeve. During this operation, the roller 166 is positioned in a position where sliding arm 172 is extended. The pneumatic means is operated to lower the contactor 22 so that the lower end of rollers 164, 166 are positioned slightly below the upper end of the cathode sleeve.
  • the worm drive 174 is then operated to retract roller 166 until roller 166 comes into contact with the inner wall of the upper edge of the cathode sleeve.
  • roller 164 contracts the outer wall of the cathode sleeve to provide a reaction force against the force supplied by roller 166.
  • the rollers contact the cathode sleeve and hold the upper edge of the cathode sleeve in position. In this manner, the likelihood of the upper edge of the cathode sleeve and, particularly a corner of the cathode sleeve, being bent over by operation of the separator, is minimised.
  • the contactor may be operated to extend sliding arm 172 to thereby remove the roller 166 from contact with the inner edge of the cathode sleeve.
  • the contactor 22 may then be raised and the arm 160 rotated to move the arm 160 away from the cathode sleeve. This will enable the cathode to be removed from the apparatus once the metal has been separated therefrom.
  • the apparatus of the present invention also includes a safety frame 34.
  • Figure 16 shows the safety frame 34 removed from the apparatus 10.
  • the safety frame 34 may carry the control panel 32.
  • the safety frame may be made from a plurality of separate frame members that are joined together, for example, by welding.
  • the safety frame may include an opening front door 170 having a handle 172.
  • the opening front door may be made from a transparent material so that an operator can view the cathode harvesting operation.
  • the operator may operate the control panel 32 from outside the safety frame 34.
  • the safety frame 34 is arranged so that may be mounted to the frame 24 of the apparatus 10.
  • a cathode having metal deposited there on is lowered, typically from a crane, so that the cathode is positioned inside the guides and over the gripper 20.
  • Gripper 20 extends upwardly into the cathode and deposited metal;
  • the gripper 20 is operated so that the expanding rubber sleeve 116 firmly contacts and grips the interior surface of the deposited metal;
  • the contactor 22 is moved so that the rollers 164, 166 contact the upper edge of the cathode sleeve.
  • the contactor moves outwardly to release the edge of the split sleeve to allow the separator 12 to slide between the edges and the sleeve.
  • the separator 12 is actuated by driving it downwardly to push between the deposited metal and the cathode sleeve. This separates part of the deposited metal from the cathode sleeve;
  • - Drive motor 98 is operated to rotate the gripper 20 which, in turn, rotates the deposited metal.
  • the gripper may rotate by between 180° and 360°. This causes the deposited metal to rotate relative to the long side edges of the separator 20. Consequently, the long side edges of the separator 20 break the joint between the deposited metal and the cathode sleeve;
  • the separator 20 is raised to a position where it is clear of the cathode sleeve;
  • rollers 140 are brought into contact with the outer surface of the cathode and the cathode is rotated to thereby close up to cathode sleeve;
  • - lifting apparatus lifts the cathode sleeve out the apparatus.
  • the gripper is still gripping the deposited metal, the deposited metal remains on the gripper; - further lifting apparatus lifts of the deposited metal out of the unit.
  • the gripper is operated such that the expandable rubber sleeve no longer engages with the inner surface of the deposited metal in order to enable the deposited metal to be lifted; and
  • the gripper is released and the deposited metal removed. Due to the proximity of the gripper inside the cathode and the cathode guides, the cathode is unlikely to fall over. The cathode may then be removed.
  • the present invention provides an apparatus that will enhance harvesting of deposited metal from cylindrical cathodes and cylindrical cathode sleeves.
  • the invention permits far greater automation of cathode harvesting from cylindrical cathodes or cylindrical cathode sleeves then has previously been possible.

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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)

Abstract

L’invention concerne un dispositif (10) pour séparer un dépôt de métal déposé sur un côté intérieur d’un élément de cathode essentiellement cylindrique, comprenant un séparateur (12) adapté pour être positionné de telle sorte qu’un bord du séparateur soit positionné à proximité d’une jonction entre le métal déposé et l’élément de cathode essentiellement cylindrique, des moyens de commande axiaux (14) pour entraîner un déplacement axial entre le séparateur (12) et l’élément de cathode essentiellement cylindrique et un mécanisme de rotation (18) pour entraîner une rotation relative entre le séparateur et le métal déposé ou l’élément de cathode essentiellement cylindrique.
PCT/AU2009/001574 2008-12-03 2009-12-02 Procédé et dispositif pour séparer un métal d’une cathode WO2010063071A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2008906271 2008-12-03
AU2008906271A AU2008906271A0 (en) 2008-12-03 Cathode Harvesting

Publications (1)

Publication Number Publication Date
WO2010063071A1 true WO2010063071A1 (fr) 2010-06-10

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Cited By (1)

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CN107699924A (zh) * 2017-11-13 2018-02-16 温岭市忠盛金属材料有限公司 一种碱性电解金属锌粉中的阴极板剥离金属锌粉设备

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GB2093067A (en) * 1981-02-13 1982-08-25 Nat Res Dev Removing electro-deposit from rotating cylindrical electrode
US4406753A (en) * 1982-01-19 1983-09-27 Ciba-Geigy Ag Electrolytic metal recovery cell and operation thereof
WO1996038602A1 (fr) * 1995-06-01 1996-12-05 Electrometals Mining Limited Appareil d'extraction de minerai
JP2006213972A (ja) * 2005-02-04 2006-08-17 Central Res Inst Of Electric Power Ind 析出物掻き取り式電解装置における掻き取り刃
US7097747B1 (en) * 2003-08-05 2006-08-29 Herceg Joseph E Continuous process electrorefiner

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Publication number Priority date Publication date Assignee Title
SU899730A1 (ru) * 1978-09-26 1982-01-23 Всесоюзный научно-исследовательский и проектный институт титана Устройство дл срезани осадка с цилиндрического катода
GB2093067A (en) * 1981-02-13 1982-08-25 Nat Res Dev Removing electro-deposit from rotating cylindrical electrode
US4406753A (en) * 1982-01-19 1983-09-27 Ciba-Geigy Ag Electrolytic metal recovery cell and operation thereof
WO1996038602A1 (fr) * 1995-06-01 1996-12-05 Electrometals Mining Limited Appareil d'extraction de minerai
US7097747B1 (en) * 2003-08-05 2006-08-29 Herceg Joseph E Continuous process electrorefiner
JP2006213972A (ja) * 2005-02-04 2006-08-17 Central Res Inst Of Electric Power Ind 析出物掻き取り式電解装置における掻き取り刃

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107699924A (zh) * 2017-11-13 2018-02-16 温岭市忠盛金属材料有限公司 一种碱性电解金属锌粉中的阴极板剥离金属锌粉设备
CN107699924B (zh) * 2017-11-13 2024-04-02 温岭市忠盛金属材料有限公司 一种碱性电解金属锌粉中的阴极板剥离金属锌粉设备

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