CN101343759B - Cathode stripping device - Google Patents
Cathode stripping device Download PDFInfo
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- CN101343759B CN101343759B CN2008101305533A CN200810130553A CN101343759B CN 101343759 B CN101343759 B CN 101343759B CN 2008101305533 A CN2008101305533 A CN 2008101305533A CN 200810130553 A CN200810130553 A CN 200810130553A CN 101343759 B CN101343759 B CN 101343759B
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- Prior art keywords
- pair
- negative electrode
- chisel
- separating tool
- stop part
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
- C25C7/08—Separating of deposited metals from the cathode
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
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Abstract
An cathode peeling device is disclosed, comprising: a supporter for a cathode to be peeled off; a pair of separation tools (30) adapted to respectively act on each surface of the cathode (26) in order to at least partially separate a metal deposit (29); a device for driving the pair of separation tools, which is designed to enable the separation tools (30) to be movable between a releasing position and a working position, wherein the separation tools are disposed on each side of the cathode (26), a predetermined spacing is between the separation tools; and a mechanism for creating a relative motion between the cathode and the separation tools. The device also includes a pair of stop parts (50) each of which is relevant to the corresponding separation tools (30) of the pair of the stop parts and is combined with the separation tools during the motion, the stop parts (50) are positioned and manufactured to contact with each other at the working position of the separation tools (30), so as to define the predetermined spacing between the separation tools (30).
Description
Technical field
The present invention relates generally to the hydrometallurgy production of metal (such as zinc), more particularly, relate to a kind of cathode stripping device that is deposited on the metal sheet on the described negative electrode that is used to collect.
Background technology
As common general knowledge, the key step of producing zinc with hydrometallurgical is as follows:
-roasting zinc sulphide (ZnS) is to obtain zinc oxide (ZnO) and to remove some impurity;
-carry out leaching, so that with zinc sulfate (ZnSO
4) the form solving zinc;
-replace (cement), from solution of zinc sulfate, to remove impurity (cobalt, nickel, cadmium and copper);
-carry out electrolysis, zinc sulfate is changed into the zinc metal.
Therefore, last zinc electrolytic metallurgy step (EW) comprises by the DC electric current being passed make between anode and the negative electrode zinc solution electrolysis after purifying in the electrolyzer.This method is used for by electrolysis deposition other zinc metal of high-purity-grade (purity approximately is 99.99%) on negative electrode.
In practice, negative electrode typically is made up of an aluminium sheet that is positioned at vertically in the electrolyzer.This plate is provided with the bar bar (bar) of width greater than the plate width on its top, this bar is used as support, electric terminal, and makes operation convenient.The vertical edge of negative electrode is lined with the deposition that electrically insulating material stops zinc usually.Like this, in electrolytic process, on the height in immersing electrolyzer, metal just is deposited on the exposed surface of negative electrode.
Must remove the zinc metal deposit that is tightly adhered on the negative electrode then.Tradition uses cathode stripper to carry out this operation.After cleaning, the negative electrode after peeling off turns back to electrolyzer so that plating zinc once more.
In described machine, strip operation generally includes two successive stage.In the fs, use a pair of chisel on each surface of negative electrode, to operate, to peel off/to separate the upper corner of each plate.Then, in subordinate phase, use the scraper that extends along the whole width of negative electrode that zine plate is stripped down fully and with itself and cathodic disbonding.
In order to use the upper corner of the initial peel plate of chisel, accurately regulate chisel so that it is positioned as close to cathode surface, be inserted into metal deposit below, contact negative electrode in order to avoid with its damage but keep off as far as possible at any time.
In practice, chisel is placed in the working position, and cathode anchor is in vertical motion, so that make chisel handle described upper corner.
Be understandable that in this operation if chisel is located mistakenly, then they might the scratch cathode surface.Similarly, if chisel is not very firmly remained on the appropriate location, they might be shifted (departing from), and particularly are easy to close to each otherly, closely are distributed in around the negative electrode and with its surperficial scratch.Anticathode this damage is deleterious, and causes negative electrode to degenerate earlier, further reduces the quality of back metal deposit.
Summary of the invention
The objective of the invention is to propose a kind of minimized cathode stripping device of above-mentioned negative electrode damage problem that makes.
According to the present invention, above-mentioned purpose is by being achieved according to a kind of cathode stripping device as described below.
According to the present invention, a kind of cathode stripping device comprises:
-be used for the support of negative electrode to be stripped, above comprising, described negative electrode has two opposite faces of metal deposit;
-at least one pair of separating tool is suitable for acting on respectively on each face of negative electrode, so that separating metal settling at least in part;
-being used to drive this device to separating tool, described drive unit is designed such that separating tool moves between off-position and working position, wherein said separating tool is placed on each side of negative electrode, has predetermined space between them; And
-be used between negative electrode and this are to separating tool, producing the mechanism of relative movement, so that separating metal settling at least in part, described separating tool is in the working position.
According to an important aspect of the present invention, this device comprises and described this a pair of stop part relevant to separating tool.Each stop part is relevant with corresponding separating tool, and combination with it at the volley, and stop part is positioned and manufactures that stop part contacts each other in the working position of separating tool, thereby the prevention separating tool is close mutually.
Because each stop part all combines with relevant separating tool, so uses its driving mechanism will inevitably cause the motion of stop part to the control of separating tool.For the separating metal settling, with separating tool move more close negative electrode, each separating tool is positioned on its respective face.Therefore, when producing relative movement between separating tool and the negative electrode, separating tool moves more closely mutually, clamps negative electrode and carries out peeling off to small part of metal deposit.Along with separating tool being taken to more close position mutually, stop part also can move more closely mutually and begin contact, and therefore leave between separating tool at interval: separating tool is in its working position.Stop part is in the contact, because separating tool combines with stop part, therefore separating tool is drawn closer together.Therefore stop part has guaranteed the minimum interval between the separating tool.
Separating tool can be a chisel of handling the top of metal deposit on each face of negative electrode partly, or along the scraper that the whole width of negative electrode extends, is used for fully separating before by the isolating plate of chisel part.In fact, can be relevant according to a pair of stop part of the present invention with chisel, scraper, or relevant with the both.In fact, chisel and scraper can move and only be placed in the working position before strip operation usually around negative electrode.
In practice, the location of chisel is the factor of most critical, because they are placed on apart from a few tenths of millimeter of cathode surface place.Therefore at least one pair of stop part is relevant with chisel usually.
According to an embodiment, separating tool is installed on each side of negative electrode pivotally.Therefore chisel is arranged in to generally include in the working position chisel is pivoted clamping negative electrode, thereby the chisel head is close together mutually.Therefore, stop part can be fixed in the rotating shaft identical with chisel, and this stop part be designed to carry out with chisel is arranged in the working position corresponding rotation after contact.Be used to drive this device to separating tool and can comprise linear actuators, this linear actuators is installed into makes this pivot between off-position and working position to separating tool.
But it should be noted that this stop part can be used in also that for example they carry out under the situation of axial motion.General principles is such, and when separating tool is brought to together when acting on the negative electrode, stop part combines at the volley with separating tool, and their are joined in that negative electrode is other.The junction of stop part must be corresponding with the work point of relative separating tool.
Preferably, each chisel comprises the tool rack that is fixed in pivot brackets and is installed in edge tool on the described tool rack.Should be noted that, in this case, be installed in the combination of the tool rack/instrument on the pivot brackets, can change the interval between the chisel head by change.In fact, because the abut that chisel rotates is limited by stop part, therefore for the given chisel of a cover, the interval between the chisel also is a fixed.Dismountable chisel structure is used for replacing chisel, to operate under different intervals.A substitute mode is to replace stop part.
Preferably, by coming the stripping metal settling with respect to the separating tool swap cathode, and separating tool is in its fixed working position.For this reason, this device advantageously comprises and is used for along vertical and upward to the system of the described plate of linear pulling.
Description of drawings
With reference to accompanying drawing, can understand further feature of the present invention and details in order to explain the given detailed description of preferred embodiment from following.These accompanying drawings show:
Fig. 1 is the front view according to the preferred embodiment of cathode stripping device of the present invention;
Fig. 2 is the detail view of various plate scraper elements in Fig. 1 device;
Fig. 3 is in the chisel in the working position and the detail view of relevant stop part.
Embodiment
Fig. 1 shows the overview of the preferred embodiment of this cathode stripping device 10.This device 10 comprises the structure 12 that forms rectangular frame, and this structure comprises and is used to support the device of negative electrode to be stripped and is used for the separating tool removing metal deposits and then described negative electrode is peeled off from two faces of negative electrode.
Although not shown, normally device 10 is moved around by for example transport unit of chain type.On this transport unit, from stripping off device 10, the storage area, downstream of the negative electrode after can dividing into the storage area, upstream that comprises negative electrode to be stripped and comprising processing (peeling off).On this transport unit, negative electrode stores with given negative electrode mutual spacing usually, and this negative electrode mutual spacing is corresponding to the mutual space of the negative electrode in the electrolyzer.Such storage arrangement mode has been simplified the processing of negative electrode significantly, because they can whole be removed from electrolyzer and reorientate with proper spacing times integral body like this.Between two storage areas, at stripping off device 10 places, the cathode anchor device advantageously is designed to allow removing negative electrode to be stripped on the transport unit and after the processing negative electrode is being placed on the transport unit.
As illustrating better among Fig. 2, usually be marked as 14 cathode anchor device, comprise the framework that constitutes by a horizontal stripe bar 18 and two vertical bar 20 (only showing), these two vertical bar are provided with groove 22 in its bottom separately, and this groove is suitable for receiving the end of dangling of the head rod 24 of negative electrode 26.What need explanation once more is, in the hydrometallurgy of metal (such as zinc) is produced, usually the negative electrode 26 that adopts is made of aluminium sheet 28, and its top of this plate is provided with the head rod 24 of width greater than these plate 28 width, and described head rod 24 is as support, electric terminal and be convenient to operation.The vertical edge of negative plate 28 is lined with the deposition that the electrically insulating material (not shown) stops zinc usually.
In this substitute mode, stripping off device 10 is designed to peel off by two steps:
-at first, use two chisels 30 of forming first pair of separating tool to separate a upper corner of the metal deposit 29 on negative electrode 26 each face.
-then, use two scrapers 32 forming second pair of separating tool that metal deposit 29 is stripped down from each face of negative electrode 26 fully.
About the more specifically description of chisel 30, shown in clear among Fig. 2 and Fig. 3, they are placed on every side of negative electrode 26, so that each chisel is handled a top of metal deposit.In Fig. 2 and Fig. 3, chisel is arranged in the position that is called as the working position: they are positioned on every side of negative electrode 26, be positioned at metal deposit 29 top directly over.And they preferably are placed very near negative electrode 26, that is, and and apart from the place of a few tenths of millimeter of cathode surface, so that avoid touching negative electrode and be positioned as close to plate 28 and the separation surface of metal deposit 29 is handled settling.Therefore, in the working position, leaving predetermined space (the same on the two sides usually) between chisel 30 and the negative electrode 26, this predetermined space is corresponding to the predetermined space between two chisels 30 every.
Drive unit is set, is used for mobile chisel between as shown in Figures 2 and 3 working position and off-position (not shown), in the off-position, chisel 30 exceeds the scope of negative electrode 26, and can't handle metal deposit 29 or negative plate 28.
In the present embodiment, every chisel 30 is installed pivotally around corresponding rotating shaft 34, described rotating shaft is level and plane that be parallel to negative electrode 26.Drive unit comprises with every the relevant linear actuators 36 of chisel 30, and for example, described actuator is machinery, electricity or hydro-cylinder type.More accurately, the bar 38 of each actuator 36 connects with the axle 34 of corresponding chisel 30 by cam 40, so that the lengthening of actuator rod 38 or shortening cause the rotation of corresponding axis 34 along a direction or other direction, and the chisel that is connected with axle is also rotated thereupon.It should be noted that for this operator scheme actuator rod 38 comprises a hinged end, this hinged end is followed the curved path of cam, and this curved path is augmented by the hinge assembly of actuator body.
Should be clear that, can handle metal deposit 29 effectively, certainly exist relative movement between chisel 30 and the negative electrode 26 in order to make the chisel 30 in Fig. 2 and Fig. 3 structure.This relative movement preferably makes separating tool keep motionless the realization by negative electrode 26 is moved up.For this reason, the cross bar 18 of cathode anchor 14 firmly is fixed on the vertical haulage gear 42, and this vertical haulage gear comprises the system that cylinder 44 and pulley 46 and counterweight 48 constitute.One controlled or several centimetres move up of negative electrode 26 is used for separating (peeling off) on metal deposit 29 slave plates 28.
As everyone knows, in this operation, the improper location of chisel (too closely or directly contacting with it from negative plate) causes damaging the excessive risk on negative electrode 26 surfaces.Therefore, chisel/negative electrode at interval and the interval between two chisels 30 all should be through accurately considering and adjusting.No matter be in the position fixing process of chisel, still in the process of carrying out strip operation, must prevent that all chisel 30 from departing from the working position of oneself and moving to such an extent that be close together.
It should be understood that in order to prevent chisel 30 approachingly mutually, and in order to consider the internal interval of chisel, device 10 comprises a pair of stop part 50, and each stop part 50 is relevant with each corresponding chisel 30.Situation as shown in Fig. 2 and Fig. 3, stop part 50 are incorporated into chisel 30 separately in moving (here for rotating), and the size of stop part is formed in the working position of chisel 30 and is in contact with one another.In this substitute mode, stop part 50 is incorporated in the rotating shaft 34 of chisel 30 and perpendicular to this rotating shaft securely to be extended.Moving towards each other to enter on corresponding each 34 the turning direction in working position with chisel 30, in case stop part 50 contacts, rotation just is prevented from automatically.The contact end of stop part has suitable shape.
For higher efficient,, advantageously stop part 50 is positioned to contact, near the behaviour area (see figure 2) of chisel with contiguous negative electrode especially for bent/twisted load is minimized.In addition, the zone of action of each stop part 50 is the distance between rotating shaft and point of contact all, and this distance is equivalent to the distance between the edge tool 56 of rotating shaft and corresponding chisel 30 substantially.
Therefore, stop part 50 is useful for the control location of chisel 30 in work structuring, and is used to guarantee the minimum interval between the corresponding chisel 30 between the chisel support.
In fact it should be noted that in this substitute mode chisel 30 is installed on the support 52 that combines with respective axes of rotation 34, therefore formed pivot brackets.Chisel 30 itself comprises tool rack 54 and the edge tool 56 that is securely fixed on the tool rack 54.In this substitute mode, each tool rack 54 all is fixed on its support 52 by two screws 58.
Also should be noted that the favourable aspect of this structure.By stop part 50 is arranged to contact, described stop limits chisel 30 moving toward each other, thus limit the given radial position of chisel support 52, and limit the interval between the edge tool 56 that is in two chisels 30 in the working position.For a given cover chisel, the chisel space that is in the working position is constant, because this is by the contact decision of two stop parts.
In order under different chisel spaces, to operate, for example, that is, change the combination of tool rack 54 and instrument 56 because different cathode thickness must be changed chisel 30.In case after being installed on the support 52, just adopt the second cover chisel, with different interval between the chisel 30 and and edge tool 56 between different interval corresponding, the second cover chisel has the structure of different supports and edge tool combination.
Under the vertical draw that the bar bar 18 of mechanism's 42 anticathode supports 14 applies, use scraper 32 to carry out remaining strip operation traditionally, that is, metal deposit is stripped down from negative electrode 26 fully.Scraper 32 extends and inclination a little along the whole width of negative plate, makes that scraper is below being inserted into metal deposit 29 by chisel 30 isolating upper corner places when negative electrode 26 is pulled upwardly.
In this substitute mode, for compactedness, each rotating shaft 34 and 60, chisel 30 and scraper 32 all are coaxial mounted.And rotating shaft 34 and 60 s' interval makes that the permission negative electrode passes through when negative electrode is pulled system and is pulled upwardly from this interval.Obviously, those skilled in the art can expect different structures.
Claims (11)
1. cathode stripping device comprises:
-being used for the support of negative electrode to be stripped, described negative electrode comprises two opposite faces, has metal deposit on described two opposite faces;
-pair of separated instrument is suitable for acting on respectively on each face of described negative electrode, so that separate described metal deposit at least in part;
-be used to drive the device of described pair of separated instrument, described device is designed such that described pair of separated instrument moves between off-position and working position, wherein said pair of separated instrument is placed on each side of described negative electrode, has predetermined space between them; And
-be used between described negative electrode and described pair of separated instrument, producing the mechanism of relative movement, so that separate described metal deposit at least in part, described pair of separated instrument is in the described working position,
It is characterized in that
A pair of stop part, each stop part in the described a pair of stop part is relevant with corresponding separating tool in the described pair of separated instrument, and combination with it at the volley, described a pair of stop part is positioned and manufactures in the working position of described pair of separated instrument and contacts each other, thereby limits the described predetermined space between the described pair of separated instrument.
2. device according to claim 1 is characterized in that described separating tool is a chisel, and described chisel is designed to handle partly the top of the described metal deposit on each face of described negative electrode.
3. device according to claim 1 is characterized in that, described separating tool is the scraper along the whole width extension of described negative electrode.
4. device according to claim 1 is characterized in that described separating tool is a chisel, and described stop part is relevant with described chisel; And described separating tool also comprises a pair of scraper.
5. according to claim 2 or 4 described devices, it is characterized in that described separating tool is installed pivotally.
6. device according to claim 5 is characterized in that, the described stop part relevant with each separating tool is fixed in the pivotal axis identical with described separating tool.
7. device according to claim 5 is characterized in that described separating tool is installed in respectively on the corresponding pivot brackets.
8. device according to claim 7 is characterized in that, each chisel comprises tool rack that is fixed in described pivot brackets and the edge tool that is installed on the described tool rack.
9. device according to claim 1 is characterized in that, the device that is used to drive described pair of separated instrument comprises linear actuators, and described linear actuators is installed into makes described pair of separated instrument pivot between off-position and working position.
10. device according to claim 1 is characterized in that, the described mechanism that is used for producing relative movement between described negative electrode and described pair of separated instrument comprises and being used for along vertical and upward to the system of linear pulling plate.
11., it is characterized in that described separating tool is installed pivotally according to claim 1 or 3 described devices.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07112320.2 | 2007-07-12 | ||
| EP07112320A EP2014800B1 (en) | 2007-07-12 | 2007-07-12 | Cathode stripping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101343759A CN101343759A (en) | 2009-01-14 |
| CN101343759B true CN101343759B (en) | 2011-05-04 |
Family
ID=38664926
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201768396U Expired - Lifetime CN201132859Y (en) | 2007-07-12 | 2007-09-20 | Cathodic disbonding device |
| CN2008101305533A Expired - Fee Related CN101343759B (en) | 2007-07-12 | 2008-07-07 | Cathode stripping device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201768396U Expired - Lifetime CN201132859Y (en) | 2007-07-12 | 2007-09-20 | Cathodic disbonding device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2014800B1 (en) |
| CN (2) | CN201132859Y (en) |
| AT (1) | ATE485405T1 (en) |
| DE (1) | DE602007009961D1 (en) |
| ES (1) | ES2351669T3 (en) |
| PL (1) | PL2014800T3 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602007009961D1 (en) * | 2007-07-12 | 2010-12-02 | Wurth Paul Sa | Device for stripping cathodes |
| CN102051643B (en) * | 2011-01-13 | 2013-04-03 | 三门三友冶化技术开发有限公司 | Separator for permanent cathode stripping unit |
| CN105483759B (en) * | 2014-09-18 | 2018-01-12 | 有研亿金新材料有限公司 | High-temperature metal product strike off and collection device |
| CN106222705B (en) * | 2016-08-31 | 2018-06-19 | 三门三友科技股份有限公司 | A kind of stripping off device of cathode zine plate |
| CN109735875A (en) * | 2019-01-28 | 2019-05-10 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Machine for cutting charge into pieces |
| CN110565122A (en) * | 2019-10-08 | 2019-12-13 | 江苏丹源环保科技有限公司 | Electrolytic polar plate stripping machine not easy to damage plates |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4479854A (en) * | 1983-02-14 | 1984-10-30 | Cominco Ltd. | Method and apparatus for stripping cathodes |
| US4806213A (en) * | 1986-10-03 | 1989-02-21 | Outokumpu Oy | Method and apparatus for stripping electrolytic precipitate from supporting structures |
| CN201132859Y (en) * | 2007-07-12 | 2008-10-15 | 保尔伍斯股份有限公司 | Cathodic disbonding device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU472548B2 (en) * | 1972-10-27 | 1976-05-27 | Dowa Mining Co. Ltd. | An automatic apparatus for stripping deposited metal froma cathode plate in electrowinning process |
| JPS5665992A (en) * | 1979-10-30 | 1981-06-04 | Mitsui Mining & Smelting Co Ltd | Exfoliating method and device of electrodeposited metallic plate |
-
2007
- 2007-07-12 DE DE602007009961T patent/DE602007009961D1/en active Active
- 2007-07-12 PL PL07112320T patent/PL2014800T3/en unknown
- 2007-07-12 AT AT07112320T patent/ATE485405T1/en not_active IP Right Cessation
- 2007-07-12 ES ES07112320T patent/ES2351669T3/en active Active
- 2007-07-12 EP EP07112320A patent/EP2014800B1/en not_active Not-in-force
- 2007-09-20 CN CNU2007201768396U patent/CN201132859Y/en not_active Expired - Lifetime
-
2008
- 2008-07-07 CN CN2008101305533A patent/CN101343759B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4479854A (en) * | 1983-02-14 | 1984-10-30 | Cominco Ltd. | Method and apparatus for stripping cathodes |
| US4806213A (en) * | 1986-10-03 | 1989-02-21 | Outokumpu Oy | Method and apparatus for stripping electrolytic precipitate from supporting structures |
| CN201132859Y (en) * | 2007-07-12 | 2008-10-15 | 保尔伍斯股份有限公司 | Cathodic disbonding device |
Non-Patent Citations (1)
| Title |
|---|
| JP昭56-65992A 1981.06.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2351669T3 (en) | 2011-02-09 |
| PL2014800T3 (en) | 2011-07-29 |
| CN201132859Y (en) | 2008-10-15 |
| EP2014800B1 (en) | 2010-10-20 |
| DE602007009961D1 (en) | 2010-12-02 |
| ATE485405T1 (en) | 2010-11-15 |
| EP2014800A1 (en) | 2009-01-14 |
| CN101343759A (en) | 2009-01-14 |
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