WO2016075366A1 - Method and arrangement for collecting samples of cathode metal deposit sheets - Google Patents

Method and arrangement for collecting samples of cathode metal deposit sheets Download PDF

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Publication number
WO2016075366A1
WO2016075366A1 PCT/FI2015/050776 FI2015050776W WO2016075366A1 WO 2016075366 A1 WO2016075366 A1 WO 2016075366A1 FI 2015050776 W FI2015050776 W FI 2015050776W WO 2016075366 A1 WO2016075366 A1 WO 2016075366A1
Authority
WO
WIPO (PCT)
Prior art keywords
cathode
station
permanent
metal deposit
stripping
Prior art date
Application number
PCT/FI2015/050776
Other languages
French (fr)
Inventor
Jan Edvardsson
Per Andersson
Original Assignee
Outotec (Finland) Oy
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 Outotec (Finland) Oy filed Critical Outotec (Finland) Oy
Priority to CA2966705A priority Critical patent/CA2966705A1/en
Priority to CN201580060921.XA priority patent/CN107076769A/en
Publication of WO2016075366A1 publication Critical patent/WO2016075366A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/12—Dippers; Dredgers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/00722—Communications; Identification
    • G01N35/00732—Identification of carriers, materials or components in automatic analysers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/00584—Control arrangements for automatic analysers
    • G01N35/00722—Communications; Identification
    • G01N35/00732—Identification of carriers, materials or components in automatic analysers
    • G01N2035/00821—Identification of carriers, materials or components in automatic analysers nature of coded information
    • G01N2035/00831—Identification of carriers, materials or components in automatic analysers nature of coded information identification of the sample, e.g. patient identity, place of sampling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the invention relates to method for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells as defined in the preamble of independent claim 1.
  • the invention also relates to an arrangement for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells as defined in the preamble of independent claim 12.
  • Application AU 2007237233 Al presents an apparatus and a method for conveying electrodeposited metal sheets.
  • Publication JP 5076241 B2 presets a sample device of deposited metal plate.
  • Publication US 7,721,897 B2 presents an apparatus and a method for collecting, sorting and storing samples from multiple batches of copper cathode is disclosed. Samples are collected at a sampling station and transferred to a collection container. The samples are then transferred to a sorting container by way of chutes forming a continuous path from the collection container to the sorting container.
  • the sorting container is affixed on the top surface of an automated carousel having a plurality of sorting containers for sorting samples from multiple batches. Samples in the sorting containers are recovered into storage containers through an access door panel and a funnel placed beneath the access door.
  • the object of the invention is to provide an improved method and an improved arrangement for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells.
  • the method for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells of the invention is characterized by the definitions of independent claim 1.
  • the arrangement for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells of the invention is correspondingly characterized by the definitions of independent claim 12.
  • Figure 1 shows a permanent cathode
  • Figure 2 shows a sampling station
  • Figure 3 is a schematic illustration of a first embodiment of the method and of the arrangement
  • Figure 4 is a schematic illustration of a second embodiment of the method and of the arrangement.
  • Figure 4 is a schematic illustration of a third embodiment of the method and of the arrangement.
  • the invention relates to a method and to an arrangement for collecting cathode samples 1 of cathode metal deposit sheets 2 formed on a mother plate 3 of permanent cathodes 4 in an electrolytic cell 7.
  • the method comprises a providing step for providing a permanent cathode 4 that comprises a mother plate 3 and a unique remotely readable identifier 5.
  • the unique remotely readable identifier 5 can for example comprise a radio frequency identification (RFID) or a camera readable matrix.
  • RFID radio frequency identification
  • Publication US 7,678,247 presents an example of a permanent cathode 4 that is provided with an RFID element.
  • the providing step of the method comprises preferably, but not necessarily, providing a plurality of permanent cathodes 4 each comprising a mother plate 3 and each comprising a unique remotely readable identifier 5.
  • the method comprises a cathode metal producing step for in an electrolytic cell 7 form a cathode metal deposit sheet 2 on the mother plate 3 of the permanent cathode 4 that is provided with a unique remotely readable identifier 5 to produce a cathode metal deposit sheet carrying permanent cathode 6 that is provided with a unique remotely readable identifier 5.
  • the cathode metal deposit sheet 2 can consist of two cathode metal deposit sheet halves (not shown in the figures).
  • the cathode metal producing step of the method comprises preferably, but not necessarily, forming in an electrolytic cell 7 a cathode metal deposit sheet 2 on several permanent cathodes 4 each provided with a unique remotely readable identifier 5 to produce several cathode metal deposit sheet carrying permanent cathodes 6 each provided with a unique remotely readable identifier 5.
  • the cathode metal producing step may be electrolytic refining of copper and the cathode metal may be copper having a purity that is approximately 99.99%.
  • the method comprises a transporting step for transporting the cathode metal deposit sheet carrying permanent cathode 6 that is provided with a unique remotely readable identifier 5 from the electrolytic cell 7 to a cathode stripping station 8.
  • a crane 20 or a hoist may be used for transporting the cathode metal deposit sheet carrying permanent cathode from the electrolytic cell 7 to the stripping station 8.
  • a crane 20 is used for moving cathode metal deposit sheet carrying permanent cathodes 6 from electrolytic cells 7 to a first conveyor 9 of the stripping station 8.
  • the first conveyor 9 of the stripping station 8 is configured to move cathode metal deposit sheet carrying permanent cathodes 6 to a traverse conveyor 10 of the stripping station 8.
  • the traverse conveyor 10 of the stripping station 8 is configured to move cathode metal deposit sheet carrying permanent cathodes 6 to a cathode stripping device 11 of the cathode stripping station 8 and configured to move permanent cathodes 4 from the cathode stripping device 11 of the cathode stripping station 8 to a second conveyor 12 of the stripping station 8.
  • the second conveyor 12 is configured to move permanent cathodes 4 to a pick-up station from where a set of permanent cathodes can be transported to an electrolytic cell 7.
  • the method comprises a stripping step for by means of the cathode stripping device 11 of the cathode stripping station 8 stripping the cathode metal deposit sheet 2 from the mother plate 3 of the permanent cathode 4 that is provided with a unique remotely readable identifier 5 and dropping the cathode metal deposit sheet 2 from the cathode stripping device 11 of the stripping station 8 onto a cathode metal deposit sheet feed conveyor 13 of a stacking station 19, wherein the cathode metal deposit sheet feed conveyor 13 of the stacking station 19 is arranged at least partly below the cathode stripping device 11 of the stripping station 8 and that is configured to feed the cathode metal deposit sheet 2 towards a stacking device 26 of the stacking station 19, which stacking device 26 of the stacking station 19 is configured to form a stack 27 of cathode metal deposit sheets at the stacking station.
  • the method comprises an arranging step for arranging a sampling station 14 at the stacking station 19.
  • the method comprises a picking step for picking up the cathode metal deposit sheet 2 from the stacking station 19 at the sampling station 14.
  • a robotic manipulator or an industrial robot may be used as a picking device 22 in the picking step.
  • the method comprises a sampling step for punching out a cathode sample 1 from the cathode metal deposit sheet 2 at the sampling station 14.
  • the method comprises a permanent cathode 4 tracking step that comprises (i) reading the unique remotely readable identifier 5 of the permanent cathode 4 by means of a first identifying device 15 to produce permanent cathode specific permanent cathode location information comprising at least the location of the electrolytic cell 7 the permanent cathode 4 is located in during the cathode metal producing step,
  • the first identifying device 15 can be a RFID reader in case the unique remotely readable identifier 5 of the permanent cathode 4 is a RFID element.
  • the first identifying device 15 can be a camera in case the unique remotely readable identifier 5 of the permanent cathode 4 is a matrix element.
  • the tracking step comprises (ii) storing the permanent cathode location information in a memory unit 16.
  • the tracking step comprises (iii) identifying the cathode metal deposit sheet carrying permanent cathode 6 at the cathode stripping station 8 by reading the unique remotely readable identifier 5 of the permanent cathode by means of a second identifying device 17 arranged at the cathode stripping station 8 and in response to identifying the cathode metal deposit sheet carrying permanent cathode 6 at the cathode stripping station 8 retrieving the location information from the memory unit 16.
  • the second identifying device 17 can be a RFID reader in case the unique remotely readable identifier 5 of the permanent cathode 4 is a RFID element.
  • the second identifying device 17 can be a camera in case the unique remotely readable identifier 5 of the permanent cathode 4 is a matrix element.
  • the method comprises a transmitting step for sending the permanent cathode location information to a sampling station 14 and for receiving the permanent cathode location information at the sampling station 14, and a labeling step for at the sampling station 14 providing the cathode sample 1 with a label 18 containing said permanent cathode location information.
  • the method may comprise a returning step for returning the cathode metal deposit sheet 2 from the sampling station 14 to the stacking station 19 such as to the cathode metal deposit sheet feed conveyor 13 of the stacking station 19 .
  • the method may comprise using a crane 20 in the transporting step.
  • the method may comprise arranging the first identifying device 15 at the crane 20.
  • the method may comprise arranging the first identifying device 15 at the electrolytic cell
  • the method includes arranging the first identifying device 15 in the stripping station 8 downstream of the cathode stripping device 11 of the stripping station 8.
  • the method may comprise a packaging step for placing the cathode sample 1 in package 24, so that the packaging step is performed after the sampling step and prior the labeling step so that the label 18 is provided on the package 24.
  • the method may comprise a packaging step for placing the cathode sample 1 in package
  • the labelling step of the method may comprise printing the permanent cathode location information with a printer 21 on the label 18 in response to receiving the permanent cathode location information at the sampling station 14.
  • the method may comprise arranging the second identifying device 17 in the stripping station 8.
  • the method may comprise arranging the second identifying device 17 at a conveyor of the stripping station 8 such as at a traverse conveyor 10 of the stripping station 8 configured to feed the cathode metal deposit sheet carrying permanent cathode 6 into the cathode stripping device 11 of the stripping station 8 and configured to feed permanent cathodes 4 from the cathode stripping device 11 of the stripping station 8.
  • the sampling station 14 can, as in the embodiments shown in figures 3 and 4, be arranged at the cathode metal deposit sheet feed conveyor 13 of the stacking station 19.
  • the sampling station 14 can, as shown in the embodiment shown in figure 5, be arranged downstream of the stacking device 26 at the stacking station 19 and the picking step may include picking the cathode metal deposit sheet 2 as the top sheet of a stack 27 of cathode metal deposit sheets formed by the stacking device 26 of the stacking station 19.
  • the arrangement comprises a permanent cathode 4 that comprises a mother plate 3 and a unique remotely readable identifier 5.
  • the permanent cathode may comprise a unique remotely readable identifier 5 comprising a RFID and/or a camera readable matrix.
  • the arrangement comprises an electrolytic cell 7 configured to perform an cathode metal producing step, where a cathode metal deposit sheet 2 is formed on the mother plate 3 of the permanent cathode 4 to produce a cathode metal deposit sheet carrying permanent cathode 6.
  • the cathode metal producing step may be electrowinning or electrorefining and the cathode metal may be copper having a purity of 99.99 %.
  • the arrangement comprises a transporting means, such as a crane 20, configured to transport the cathode metal deposit sheet carrying permanent cathode 6 from the electrolytic cell 7 to a cathode stripping station 8 comprising a cathode stripping device 11 configured to strip the cathode metal deposit sheet 2 from the mother plate 3 of the permanent cathode 4.
  • a transporting means such as a crane 20
  • a cathode stripping station 8 comprising a cathode stripping device 11 configured to strip the cathode metal deposit sheet 2 from the mother plate 3 of the permanent cathode 4.
  • the arrangement comprises a stacking station 19 comprising a cathode metal deposit sheet feed conveyor 13 that is arranged at least partly below the cathode stripping device 11 of the stripping station 8 and that is configured to receive the cathode metal deposit sheet 2 from the cathode stripping device 11 of the stripping station 8 and configured to feed cathode metal deposit sheets 2 towards a stacking device 26 of the stacking station, wherein the stacking device 26 is configured to form a stack 27 of cathode metal deposit sheets at the stacking station 19.
  • a stacking station 19 comprising a cathode metal deposit sheet feed conveyor 13 that is arranged at least partly below the cathode stripping device 11 of the stripping station 8 and that is configured to receive the cathode metal deposit sheet 2 from the cathode stripping device 11 of the stripping station 8 and configured to feed cathode metal deposit sheets 2 towards a stacking device 26 of the stacking station, wherein the stacking device 26 is configured to form a stack 27 of cathode metal deposit
  • the arrangement comprises a sampling station 14 that is arranged at the stacking station 19, wherein the sampling station 14 comprises a picking device 22 configured to pick the cathode metal deposit sheet 2 from the cathode metal deposit sheet feed conveyor 13, and wherein the sampling station 14 comprises a punching device 23 for punching out a cathode sample 1 from the cathode metal deposit sheet 2.
  • the arrangement comprising a permanent cathode tracking system (not marked with a reference numeral) comprising
  • a first identifying device 15 configured to read the unique remotely readable identifier 5 of the permanent cathode 4 to produce for the permanent cathode permanent cathode location information comprising at least the location of the electrolytic cell 7 the permanent cathode 4 is located in during the cathode metal producing step
  • a memory unit 16 configured to store the permanent cathode location information
  • a second identifying device 17 that is arranged at the stripping station 8 and that is configured to read the unique remotely readable identifier 5 of the cathode metal deposit sheet carrying permanent cathode 6.
  • the permanent cathode tracking system being configured, in response to reading the unique remotely readable identifier 5 of the cathode metal deposit sheet carrying permanent cathode 6 at the stripping station 8 by means to the second identifying device 17, to retrieve the permanent cathode location information from the memory unit 16 and to transmit the permanent cathode location information to the sampling station 14.
  • the sampling station 14 comprises a printer 21 configured to print the permanent cathode location information on a label 18 and configured to provide the cathode sample 1 with the label 18.
  • the picking device 22 may be configured to return the cathode metal deposit sheet 2 from the sampling station 14 to the stacking station 19, such as to the cathode metal deposit sheet feed conveyor 13 of the stacking station 19.
  • the picking device 22 is a lifting means, and in the arrangement shown in figure 4, the picking device is an industrial robot.
  • the first identifying device 15 of permanent cathode tracking system may be arranged at the transporting means that may be a crane 20.
  • the first identifying device 15 of the permanent cathode tracking system may be arranged at the electrolytic cell 7.
  • the first identifying device 15 of the permanent cathode tracking system may, as shown in figures 3 and 4, be arranged in the stripping station 8 downstream of the cathode stripping device 11.
  • the second identifying device 17 of the permanent cathode tracking system may, as shown in figures 3 and 4, be arranged in the stripping station 8 upstream of the cathode stripping device 11.
  • the second identifying device 17 of the permanent cathode tracking system may be arranged at a conveyor of the stripping station 8 such as at a traverse conveyor of the stripping station 8 configured to feed the cathode metal deposit sheet carrying permanent cathode 6 into the cathode stripping device 11 of the stripping station 8.
  • the arrangement may comprise a packaging means 25 configured for placing the cathode sample 1 in package 24, wherein the packaging means 25 is configured to receive the cathode sample 1 from the punching device 23.
  • the labeling device may be configured to place the label 18 on the package 24.
  • the sampling station 14 may, as shown in the embodiments shown in figures 3 and 4, be arranged at the cathode metal deposit sheet feed conveyor 13 of the stacking station 19.
  • the sampling station 14 may, as shown in the embodiment shown in figure 5, be arranged downstream of the stacking device 26 at the stacking station 19.
  • the picking device 22 of the sampling station 14 is configured to pick the cathode metal deposit sheet 2 as the top sheet of a stack 27 of cathode metal deposit sheets formed by the stacking device 26 of the stacking station 19.

Abstract

The invention relates to a method and to an arrangement for collecting cathode samples (1) of cathode metal deposit sheets (2) formed on a mother plate (3) of permanent cathodes (4) in an electrolytic cell (7). A permanent cathode tracking system being configured to in response to reading an unique remotely readable identifier (5) of the cathode metal deposit sheet carrying permanent cathode (6) at a stripping station (8) to retrieve permanent cathode location information from a memory unit (16) and to transmit the permanent cathode location information to a sampling station (14). The sampling station (14) comprises a printer (21) configured to print the permanent cathode location information on a label (18) and configured to provide the cathode sample (1) with the label (18).

Description

METHOD AND ARRANGEMENT FOR COLLECTING SAMPLES OF CATHODE METAL DEPOSIT SHEETS
Field of the invention
The invention relates to method for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells as defined in the preamble of independent claim 1.
The invention also relates to an arrangement for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells as defined in the preamble of independent claim 12.
Application AU 2007237233 Al presents an apparatus and a method for conveying electrodeposited metal sheets.
Publication JP 5076241 B2 presets a sample device of deposited metal plate.
Publication US 7,721,897 B2 presents an apparatus and a method for collecting, sorting and storing samples from multiple batches of copper cathode is disclosed. Samples are collected at a sampling station and transferred to a collection container. The samples are then transferred to a sorting container by way of chutes forming a continuous path from the collection container to the sorting container. The sorting container is affixed on the top surface of an automated carousel having a plurality of sorting containers for sorting samples from multiple batches. Samples in the sorting containers are recovered into storage containers through an access door panel and a funnel placed beneath the access door.
Objective of the invention
The object of the invention is to provide an improved method and an improved arrangement for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells.
Short description of the invention
The method for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells of the invention is characterized by the definitions of independent claim 1.
Preferred embodiments of the method are defined in the dependent claims 2 to 11.
The arrangement for collecting samples of cathode metal deposit sheets formed on a mother plate of permanent cathodes in a plurality of electrolytic cells of the invention is correspondingly characterized by the definitions of independent claim 12.
Preferred embodiments of the arrangement are defined in the dependent claims 13 to 22. List of figures
In the following the invention will described in more detail by referring to the figures, of which
Figure 1 shows a permanent cathode,
Figure 2 shows a sampling station,
Figure 3 is a schematic illustration of a first embodiment of the method and of the arrangement,
Figure 4 is a schematic illustration of a second embodiment of the method and of the arrangement, and
Figure 4 is a schematic illustration of a third embodiment of the method and of the arrangement.
Detailed description of the invention
The invention relates to a method and to an arrangement for collecting cathode samples 1 of cathode metal deposit sheets 2 formed on a mother plate 3 of permanent cathodes 4 in an electrolytic cell 7.
First the method for collecting cathode samples 1 of cathode metal deposit sheets 2 formed on a mother plate 3 of permanent cathodes 4 in an electrolytic cell 7 and some embodiments and variants of the method will be described in greater detail.
The method comprises a providing step for providing a permanent cathode 4 that comprises a mother plate 3 and a unique remotely readable identifier 5.
The unique remotely readable identifier 5 can for example comprise a radio frequency identification (RFID) or a camera readable matrix.
Publication US 7,678,247 presents an example of a permanent cathode 4 that is provided with an RFID element.
The providing step of the method comprises preferably, but not necessarily, providing a plurality of permanent cathodes 4 each comprising a mother plate 3 and each comprising a unique remotely readable identifier 5.
The method comprises a cathode metal producing step for in an electrolytic cell 7 form a cathode metal deposit sheet 2 on the mother plate 3 of the permanent cathode 4 that is provided with a unique remotely readable identifier 5 to produce a cathode metal deposit sheet carrying permanent cathode 6 that is provided with a unique remotely readable identifier 5. The cathode metal deposit sheet 2 can consist of two cathode metal deposit sheet halves (not shown in the figures).
The cathode metal producing step of the method comprises preferably, but not necessarily, forming in an electrolytic cell 7 a cathode metal deposit sheet 2 on several permanent cathodes 4 each provided with a unique remotely readable identifier 5 to produce several cathode metal deposit sheet carrying permanent cathodes 6 each provided with a unique remotely readable identifier 5.
The cathode metal producing step may be electrolytic refining of copper and the cathode metal may be copper having a purity that is approximately 99.99%.
The method comprises a transporting step for transporting the cathode metal deposit sheet carrying permanent cathode 6 that is provided with a unique remotely readable identifier 5 from the electrolytic cell 7 to a cathode stripping station 8.
In the transporting step a crane 20 or a hoist may be used for transporting the cathode metal deposit sheet carrying permanent cathode from the electrolytic cell 7 to the stripping station 8. In the arrangement shown in figures 1 and 2, a crane 20 is used for moving cathode metal deposit sheet carrying permanent cathodes 6 from electrolytic cells 7 to a first conveyor 9 of the stripping station 8. The first conveyor 9 of the stripping station 8 is configured to move cathode metal deposit sheet carrying permanent cathodes 6 to a traverse conveyor 10 of the stripping station 8. The traverse conveyor 10 of the stripping station 8 is configured to move cathode metal deposit sheet carrying permanent cathodes 6 to a cathode stripping device 11 of the cathode stripping station 8 and configured to move permanent cathodes 4 from the cathode stripping device 11 of the cathode stripping station 8 to a second conveyor 12 of the stripping station 8. The second conveyor 12 is configured to move permanent cathodes 4 to a pick-up station from where a set of permanent cathodes can be transported to an electrolytic cell 7.
The method comprises a stripping step for by means of the cathode stripping device 11 of the cathode stripping station 8 stripping the cathode metal deposit sheet 2 from the mother plate 3 of the permanent cathode 4 that is provided with a unique remotely readable identifier 5 and dropping the cathode metal deposit sheet 2 from the cathode stripping device 11 of the stripping station 8 onto a cathode metal deposit sheet feed conveyor 13 of a stacking station 19, wherein the cathode metal deposit sheet feed conveyor 13 of the stacking station 19 is arranged at least partly below the cathode stripping device 11 of the stripping station 8 and that is configured to feed the cathode metal deposit sheet 2 towards a stacking device 26 of the stacking station 19, which stacking device 26 of the stacking station 19 is configured to form a stack 27 of cathode metal deposit sheets at the stacking station.
The method comprises an arranging step for arranging a sampling station 14 at the stacking station 19.
The method comprises a picking step for picking up the cathode metal deposit sheet 2 from the stacking station 19 at the sampling station 14.
A robotic manipulator or an industrial robot may be used as a picking device 22 in the picking step.
The method comprises a sampling step for punching out a cathode sample 1 from the cathode metal deposit sheet 2 at the sampling station 14.
The method comprises a permanent cathode 4 tracking step that comprises (i) reading the unique remotely readable identifier 5 of the permanent cathode 4 by means of a first identifying device 15 to produce permanent cathode specific permanent cathode location information comprising at least the location of the electrolytic cell 7 the permanent cathode 4 is located in during the cathode metal producing step,
The first identifying device 15 can be a RFID reader in case the unique remotely readable identifier 5 of the permanent cathode 4 is a RFID element.
The first identifying device 15 can be a camera in case the unique remotely readable identifier 5 of the permanent cathode 4 is a matrix element.
The tracking step comprises (ii) storing the permanent cathode location information in a memory unit 16.
The tracking step comprises (iii) identifying the cathode metal deposit sheet carrying permanent cathode 6 at the cathode stripping station 8 by reading the unique remotely readable identifier 5 of the permanent cathode by means of a second identifying device 17 arranged at the cathode stripping station 8 and in response to identifying the cathode metal deposit sheet carrying permanent cathode 6 at the cathode stripping station 8 retrieving the location information from the memory unit 16.
The second identifying device 17 can be a RFID reader in case the unique remotely readable identifier 5 of the permanent cathode 4 is a RFID element.
The second identifying device 17 can be a camera in case the unique remotely readable identifier 5 of the permanent cathode 4 is a matrix element.
The method comprises a transmitting step for sending the permanent cathode location information to a sampling station 14 and for receiving the permanent cathode location information at the sampling station 14, and a labeling step for at the sampling station 14 providing the cathode sample 1 with a label 18 containing said permanent cathode location information.
The method may comprise a returning step for returning the cathode metal deposit sheet 2 from the sampling station 14 to the stacking station 19 such as to the cathode metal deposit sheet feed conveyor 13 of the stacking station 19 .
The method may comprise using a crane 20 in the transporting step. In such case the method may comprise arranging the first identifying device 15 at the crane 20.
The method may comprise arranging the first identifying device 15 at the electrolytic cell
7.
In the figures, the method includes arranging the first identifying device 15 in the stripping station 8 downstream of the cathode stripping device 11 of the stripping station 8.
The method may comprise a packaging step for placing the cathode sample 1 in package 24, so that the packaging step is performed after the sampling step and prior the labeling step so that the label 18 is provided on the package 24.
The method may comprise a packaging step for placing the cathode sample 1 in package
24, so that the packaging step is performed after the sampling step and after the labeling step so that the label 18 is in the labeling step provided on a cathode sample 1 that is placed in a package 24 in the packaging step. The labelling step of the method may comprise printing the permanent cathode location information with a printer 21 on the label 18 in response to receiving the permanent cathode location information at the sampling station 14.
The method may comprise arranging the second identifying device 17 in the stripping station 8.
The method may comprise arranging the second identifying device 17 at a conveyor of the stripping station 8 such as at a traverse conveyor 10 of the stripping station 8 configured to feed the cathode metal deposit sheet carrying permanent cathode 6 into the cathode stripping device 11 of the stripping station 8 and configured to feed permanent cathodes 4 from the cathode stripping device 11 of the stripping station 8. In the arranging step, the sampling station 14 can, as in the embodiments shown in figures 3 and 4, be arranged at the cathode metal deposit sheet feed conveyor 13 of the stacking station 19.
In the arranging step, the sampling station 14 can, as shown in the embodiment shown in figure 5, be arranged downstream of the stacking device 26 at the stacking station 19 and the picking step may include picking the cathode metal deposit sheet 2 as the top sheet of a stack 27 of cathode metal deposit sheets formed by the stacking device 26 of the stacking station 19.
Next the arrangement for collecting cathode samples 1 of cathode metal deposit sheets 2 formed on a mother plate 3 of permanent cathodes 4 in an electrolytic cell 7 and some embodiments and variants of the arrangement will be described in greater detail.
The arrangement comprises a permanent cathode 4 that comprises a mother plate 3 and a unique remotely readable identifier 5.
The permanent cathode may comprise a unique remotely readable identifier 5 comprising a RFID and/or a camera readable matrix.
The arrangement comprises an electrolytic cell 7 configured to perform an cathode metal producing step, where a cathode metal deposit sheet 2 is formed on the mother plate 3 of the permanent cathode 4 to produce a cathode metal deposit sheet carrying permanent cathode 6.
The cathode metal producing step may be electrowinning or electrorefining and the cathode metal may be copper having a purity of 99.99 %.
The arrangement comprises a transporting means, such as a crane 20, configured to transport the cathode metal deposit sheet carrying permanent cathode 6 from the electrolytic cell 7 to a cathode stripping station 8 comprising a cathode stripping device 11 configured to strip the cathode metal deposit sheet 2 from the mother plate 3 of the permanent cathode 4.
The arrangement comprises a stacking station 19 comprising a cathode metal deposit sheet feed conveyor 13 that is arranged at least partly below the cathode stripping device 11 of the stripping station 8 and that is configured to receive the cathode metal deposit sheet 2 from the cathode stripping device 11 of the stripping station 8 and configured to feed cathode metal deposit sheets 2 towards a stacking device 26 of the stacking station, wherein the stacking device 26 is configured to form a stack 27 of cathode metal deposit sheets at the stacking station 19. The arrangement comprises a sampling station 14 that is arranged at the stacking station 19, wherein the sampling station 14 comprises a picking device 22 configured to pick the cathode metal deposit sheet 2 from the cathode metal deposit sheet feed conveyor 13, and wherein the sampling station 14 comprises a punching device 23 for punching out a cathode sample 1 from the cathode metal deposit sheet 2.
The arrangement comprising a permanent cathode tracking system (not marked with a reference numeral) comprising
(i) a first identifying device 15 configured to read the unique remotely readable identifier 5 of the permanent cathode 4 to produce for the permanent cathode permanent cathode location information comprising at least the location of the electrolytic cell 7 the permanent cathode 4 is located in during the cathode metal producing step,
(ii) a memory unit 16 configured to store the permanent cathode location information, and
(iii) a second identifying device 17 that is arranged at the stripping station 8 and that is configured to read the unique remotely readable identifier 5 of the cathode metal deposit sheet carrying permanent cathode 6.
The permanent cathode tracking system being configured, in response to reading the unique remotely readable identifier 5 of the cathode metal deposit sheet carrying permanent cathode 6 at the stripping station 8 by means to the second identifying device 17, to retrieve the permanent cathode location information from the memory unit 16 and to transmit the permanent cathode location information to the sampling station 14.
The sampling station 14 comprises a printer 21 configured to print the permanent cathode location information on a label 18 and configured to provide the cathode sample 1 with the label 18.
The picking device 22 may be configured to return the cathode metal deposit sheet 2 from the sampling station 14 to the stacking station 19, such as to the cathode metal deposit sheet feed conveyor 13 of the stacking station 19. In the arrangement shown in figure 3, the picking device 22 is a lifting means, and in the arrangement shown in figure 4, the picking device is an industrial robot.
The first identifying device 15 of permanent cathode tracking system may be arranged at the transporting means that may be a crane 20.
The first identifying device 15 of the permanent cathode tracking system may be arranged at the electrolytic cell 7.
The first identifying device 15 of the permanent cathode tracking system may, as shown in figures 3 and 4, be arranged in the stripping station 8 downstream of the cathode stripping device 11.
The second identifying device 17 of the permanent cathode tracking system may, as shown in figures 3 and 4, be arranged in the stripping station 8 upstream of the cathode stripping device 11.
The second identifying device 17 of the permanent cathode tracking system may be arranged at a conveyor of the stripping station 8 such as at a traverse conveyor of the stripping station 8 configured to feed the cathode metal deposit sheet carrying permanent cathode 6 into the cathode stripping device 11 of the stripping station 8.
The arrangement may comprise a packaging means 25 configured for placing the cathode sample 1 in package 24, wherein the packaging means 25 is configured to receive the cathode sample 1 from the punching device 23. In such case the labeling device may be configured to place the label 18 on the package 24. In the arrangement, the sampling station 14 may, as shown in the embodiments shown in figures 3 and 4, be arranged at the cathode metal deposit sheet feed conveyor 13 of the stacking station 19.
In the arrangement, the sampling station 14 may, as shown in the embodiment shown in figure 5, be arranged downstream of the stacking device 26 at the stacking station 19. In such case the picking device 22 of the sampling station 14 is configured to pick the cathode metal deposit sheet 2 as the top sheet of a stack 27 of cathode metal deposit sheets formed by the stacking device 26 of the stacking station 19. It is apparent to a person skilled in the art that as technology advanced, the basic idea of the invention can be implemented in various ways. The invention and its embodiments are therefore not restricted to the above examples, but they may vary within the scope of the claims.

Claims

Claims
1. A method for collecting cathode samples (1) of cathode metal deposit sheets (2) formed on a mother plate (3) of permanent cathodes (4) in an electrolytic cell (7), wherein the method comprising:
a providing step for providing a permanent cathode (4) that comprises a mother plate (3) and a unique remotely readable identifier (5),
a cathode metal producing step for in an electrolytic cell (7) form a cathode metal deposit sheet (2) on the mother plate (3) of the permanent cathode (4) to produce a cathode metal deposit sheet carrying permanent cathode (6),
a transporting step for transporting the cathode metal deposit sheet carrying permanent cathode (6) from the electrolytic cell (7) to a cathode stripping station (8),
a stripping step for stripping the cathode metal deposit sheet (2) from the mother plate (3) of the permanent cathode (4) by means of a cathode stripping device (11) at the cathode stripping station (8) and dropping the cathode metal deposit sheet (2) from the cathode stripping device (11) of the stripping station (8) onto a cathode metal deposit sheet feed conveyor (13) of a stacking station (19), wherein the cathode metal deposit sheet feed conveyor (13) of the stacking station (19) is arranged at least partly below the cathode stripping device (11) of the stripping station (8) and that is configured to feed the cathode metal deposit sheet (2) towards a stacking device (26) of the stacking station (19),
an arranging step for arranging a sampling station (14) at the stacking station (19), a picking step for picking up the cathode metal deposit sheet (2) from the stacking station (19) at the sampling station (14),
a sampling step for punching out a cathode sample (1) from the cathode metal deposit sheet (2) at the sampling station (14), and
a permanent cathode tracking step comprising
(i) reading the unique remotely readable identifier (5) of the permanent cathode (4) by means of a first identifying device (15) to produce permanent cathode specific permanent cathode location information comprising at least the location of the electrolytic cell (7) the permanent cathode (4) is located in during the cathode metal producing step,
(ii) storing the permanent cathode location information in a memory unit (16), and
(iii) identifying the cathode metal deposit sheet carrying permanent cathode (6) at the cathode stripping station (8) by reading the unique remotely readable identifier (5) of the permanent cathode by means of a second identifying device (17) arranged at the cathode stripping station (8),
characterized by the method comprising
retrieving the permanent cathode location information from the memory unit (16) in response to identifying the cathode metal deposit sheet carrying permanent cathode (6) at the cathode stripping station (8), a transmitting step for sending the permanent cathode location information to the sampling station (14) in response to identifying the cathode metal deposit sheet carrying permanent cathode (6) at the cathode stripping station (8) and for receiving the permanent cathode location information at the sampling station (14), and
a labeling step for at the sampling station (14) providing the cathode sample (1) with a label (18) containing said permanent cathode location information.
2. The method according to claim 1, characterized by a returning step for returning the cathode metal deposit sheet (2) from the sampling station (14) to the stacking station (19).
3. The method according to claim 1 or 2, characterized
by using a crane (20) in the transporting step, and
by arranging the first identifying device (15) at the crane (20).
4. The method according to claim 1 or 2, characterized by arranging the first identifying device (15) at the electrolytic cell (7).
5. The method according to claim 1 or 2, characterized by arranging the first identifying device (15) in the stripping station (8) downstream of the cathode stripping device (11).
6. The method according to any of the claims 1 and 5, characterized
by a packaging step for placing the cathode sample (1) in package (24), and
by the packaging step being performed after the sampling step and prior the labeling step.
7. The method according to any of the claims 1 to 6, characterized by providing in the providing step a permanent cathode (4) comprising a unique remotely readable identifier (5) comprising a RFID and/or a camera readable matrix.
8. The method according to any of the claims 1 to 7, characterized by arranging the second identifying device (17) in the stripping station (8) upstream of the cathode stripping device (11).
9. The method according to any of the claims 1 to 8, characterized by arranging the second identifying device (17) at a conveyor of the stripping station (8) such as at a traverse conveyor (10) of the stripping station (8) configured to feed the cathode metal deposit sheet carrying permanent cathode (6) into the cathode stripping device (11) of the stripping station (8).
10. The method according to any of the claims 1 to 9, characterized by arranging the sampling station (14) in the arranging step at the cathode metal deposit sheet feed conveyor (13) of the stacking station (19).
11. The method according to any of the claims 1 to 10, characterized
by arranging the sampling station (14) in the arranging step downstream of the stacking device (26) at the stacking station (19), and
by picking in the picking step the cathode metal deposit sheet (2) as the top sheet of a stack (27) of cathode metal deposit sheets formed by the stacking device (26) of the stacking station (19).
12. An arrangement for collecting cathode samples (1) of cathode metal deposit sheets (2) formed on a mother plate (3) of permanent cathodes (4) in an electrolytic cell (7), the arrangement comprising:
a permanent cathode (4) that comprises a mother plate (3) and a unique remotely readable identifier (5),
an electrolytic cell (7) configured to, in a cathode metal producing step, form a cathode metal deposit sheet (2) on the mother plate (3) of the permanent cathode (4) to produce a cathode metal deposit sheet carrying permanent cathode (6),
a transporting means configured to transport the cathode metal deposit sheet carrying permanent cathode (6) from the electrolytic cell (7) to a cathode stripping station (8) comprising a cathode stripping device (11) configured to strip the cathode metal deposit sheet (2) from the mother plate (3) of the permanent cathode (4),
a stacking station (19) comprising a cathode metal deposit sheet feed conveyor (13) that is arranged at least partly below the cathode stripping device (11) of the cathode stripping station (8) and that is configured to receive the cathode metal deposit sheet (2) from the cathode stripping device (11) of the cathode stripping station (8) and configured to feed cathode metal deposit sheets (2) towards a stacking device (26) of the stacking station (19), wherein the stacking device (26) being configured to form a stack (27) of cathode metal deposit sheets at the stacking station (19), and
a sampling station (14) that is arranged at the cathode metal deposit sheet feed conveyor (13), wherein the sampling station (14) comprises a picking device (22) configured to pick the cathode metal deposit sheet (2) from the stacking station (19), and wherein the sampling station (14) comprises a punching device (23) for punching out a cathode sample (1) from the cathode metal deposit sheet (2),
wherein the arrangement comprising a permanent cathode tracking system comprising
(i) a first identifying device (15) configured to read the unique remotely readable identifier (5) of the permanent cathode to produce for the permanent cathode permanent cathode location information comprising at least the location of the electrolytic cell (7) the permanent cathode (4) is located in during the cathode metal producing step,
(ii) a memory unit (16) configured to store the permanent cathode location information, and (iii) a second identifying device (17) that is arranged at the stripping station (8) and that is configured to read the unique remotely readable identifier (5) of the cathode metal deposit sheet carrying permanent cathode (6),
characterized
by the permanent cathode tracking system being configured to in response to reading the unique remotely readable identifier (5) of the cathode metal deposit sheet carrying permanent cathode (6) at the stripping station (8) to retrieve the permanent cathode location information from the memory unit (16) and to transmit the permanent cathode location information to the sampling station (14), and
by the sampling station (14) comprises a printer (21) configured to print the permanent cathode location information on a label (18) and configured to provide the cathode sample (1) with the label (18).
13. The arrangement according to claim 12, characterized by the picking device (22) being configured to return the cathode metal deposit sheet (2) from the sampling station (14) to the stacking station (19).
14. The arrangement according to claim 12 or 13, characterized
by the transporting means comprising a crane (20), and
by the first identifying device (15) being arranged at the crane (20).
15. The arrangement according to claim 12 or 13, characterized by the first identifying device (15) being arranged at the electrolytic cell (7).
16. The arrangement according to claim 12 or 13, characterized by the first identifying device (15) being arranged in the stripping station (8) downstream of the cathode stripping device (11) of the stripping station (8).
17. The arrangement according to any of the claims 12 to 16, characterized
by the sampling station (14) comprising a packaging means (25) configured for placing the cathode sample (1) in package (24),
by the packaging means (25) of the sampling station (14) being configured to receive the cathode sample (1) from the punching device (23) of the sampling station (14), and
by the printer (21) of the sampling station (14) being configured to place the label (18) on the package (24).
18. The arrangement according to any of the claims 12 to 17, characterized by the permanent cathode (4) comprising a unique remotely readable identifier (5) comprising a RFID and/or a camera readable matrix.
19. The arrangement according to any of the claims 12 to 18, characterized by the second identifying device (17) being arranged in the stripping station (8) upstream of the cathode stripping device (11) of the stripping station (8).
20. The arrangement according to any of the claims 12 to 19, characterized by the second identifying device (17) being arranged at a conveyor of the stripping station (8) such as at a traverse conveyor of the stripping station (8) configured to feed the cathode metal deposit sheet carrying permanent cathode (6) into the cathode stripping device (11) of the stripping station (8).
21. The arrangement according to any of the claims 12 to 20, characterized by the sampling station (14) being arranged at the cathode metal deposit sheet feed conveyor (13) of the stacking station (19).
22. The arrangement according to any of the claims 12 to 21, characterized
by the sampling station (14) being arranged downstream of the stacking device (26) at the stacking station (19), and
by the picking device (22) of the sampling station (14) being configured to pick the cathode metal deposit sheet (2) as the top sheet of a stack (27) of cathode metal deposit sheets formed by the stacking device (26) of the stacking station (19).
PCT/FI2015/050776 2014-11-11 2015-11-10 Method and arrangement for collecting samples of cathode metal deposit sheets WO2016075366A1 (en)

Priority Applications (2)

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CA2966705A CA2966705A1 (en) 2014-11-11 2015-11-10 Method and arrangement for collecting samples of cathode metal deposit sheets
CN201580060921.XA CN107076769A (en) 2014-11-11 2015-11-10 For the method and apparatus for the sample for gathering cathodic metal piece

Applications Claiming Priority (2)

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FI20145986A FI126568B (en) 2014-11-11 2014-11-11 PROCEDURES AND ARRANGEMENTS FOR COLLECTING SAMPLES FROM CATHODE METAL STORAGE DISCS
FI20145986 2014-11-11

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CN107076769A (en) 2017-08-18
CL2017001151A1 (en) 2017-12-01
FI20145986A (en) 2016-05-12
CA2966705A1 (en) 2016-05-19

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