CN104619888A

CN104619888A - Electrolytic cathode assembly with protective covering and injected seal

Info

Publication number: CN104619888A
Application number: CN201380047173.2A
Authority: CN
Inventors: J·D·吉克克林; A·阿耶尔
Original assignee: EPCM Services Ltd
Current assignee: EPCM Services Ltd
Priority date: 2012-08-10
Filing date: 2013-08-09
Publication date: 2015-05-13
Also published as: AU2013302191A1; CL2015000303A1; AU2013302191B2; ES2716578T3; CA2881064A1; WO2014022937A1; ZA201501026B; EP2882889A1; EP2882889B1; EP2882889A4; AP2015008253A0; US20150218721A1

Abstract

An electrolytic cathode assembly includes an electrically conductive hanger bar, a deposition plate attached along an upper end to the hanger bar to define a joint, and a protective covering generally surrounding the hanger bar and a portion of an upper end of the deposition plate so as to substantially enclose the joint. The protective covering may be die formed from bending a sheet of material. A corrosion resistant material is injected into a channel between the protective covering and the hanger bar to form a substantially continuous seal extending around the hanger bar, thereby to at least hinder fluid flow into the protective covering.

Description

The electrolysis cathode assembly of sealer that there is protective guard and inject

the cross reference of related application

This application claims right of priority that submit on August 10th, 2012, U.S. Provisional Application 61/681,780, its full content comprises in this application by way of reference accordingly.

Technical field

The present invention relates generally to the electrolysis cathode assembly of refining or the refinement being generally used for metal.

Background technology

Following content is not admit that any content that this part is discussed belongs to a part for the understanding of prior art or those skilled in the art.

Describe in International Application Serial No. PCT/CA2008/001470 and be a kind ofly generally used for the refining of metal or the electrolysis cathode assembly of refinement, described electrolysis cathode assembly has conduction hanger bar and deposit plate, and described deposit plate attaches to hanger bar along upper end thus forms joint.Cathode assembly also comprises protective guard, and described protective guard has lateral edges and surrounds the part upper end of hanger bar and deposit plate, thus substantially surrounds joint and the end sections of hanger bar is exposed to outside the lateral edges of protective guard.Each end of protective guard comprises anticorrosive, and described anticorrosive is set to be formed the sealer of basic continous between protective guard and hanger bar, at least hinders fluid to flow into protective guard thus.Also describe the method manufacturing and use described electrolysis cathode assembly.

Describe a kind of electrolysis cathode assembly in International Application Serial No. PCT/CA2011/050656, this electrolysis cathode assembly comprises hanger bar and the deposition plate of hollow, and wherein deposition plate comprises the upper limb being attached to described hanger bar.Described hanger bar can be formed by copper substantially.At least one support component can be configured to support described hanger bar.Described support component can be built in described hanger bar, and can partly extend between multiple boom ends of described hanger bar.Support component can comprise the first support component and the second support component, and wherein each support component is placed in adjacent with described multiple boom end point other.Described hanger bar can comprise extension, and described support component can be placed in described extension at least in part.Described support component can comprise inner end, described inner end relative to the panel edges of described deposition plate to bias internal.

Summary of the invention

But the object of following content is to introduce the detailed description of deferring to claim theme and not limiting it or limiting to reader.

In one aspect of the invention, the method manufacturing electrolysis cathode assembly comprises: deposition plate is attached to conduction hanger bar along upper end, thus limits joint; Form the protective guard with lateral edges; Protective guard is arranged to a part of upper end and the hanger bar of surrounding deposition plate substantially, substantially to surround joint; Inject anticorrosive to the passage between protective guard and hanger bar, to be formed in the sealing of the basic continous extended around hanger bar, thus at least hinder fluid to flow into protective guard from lateral edges.

Forming step is included in protective guard the passage forming adjacent side edge substantially.Forming step comprises makes protective guard by a material.Forming step comprises this material of bending to form some sidewalls, and described some sidewalls are defined for the center cavity holding hanger bar.Forming step comprises this material of bending, and some sidewalls of protective guard are separated by interval, to adopt the mode be slidably matched to hold hanger bar.Deposition step comprises bending sidewall makes it engage with hanger bar substantially.Forming step comprises this material of bending and is separated by interval to make the longitudinal edge of protective guard, to adopt the mode be slidably matched to hold deposition plate.Deposition step comprises and being welded on deposition plate by longitudinal edge.

Implantation step comprises at least one entrance be injected into by anticorrosive with passage.Forming step is included in protective guard and forms at least one entrance.Forming step is included in the side wall of protective guard and forms at least one entrance with channel alignment (registration).

Described method also comprises and being built in described hanger bar by least one support component.Described method is also comprised and being attached in hanger bar by deposition plate by least one weld seam, and is attached on deposition plate by protective guard by least one weld seam.Anticorrosive can comprise epoxy resin (epoxy).Deposition plate and protective guard are formed by stainless steel.Hanger bar is formed by copper.

In one aspect of the invention, electrolysis cathode assembly comprises: conduction hanger bar, deposition plate, protective guard and anticorrosive; Deposition plate attaches to hanger bar along upper end thus forms joint; Protective guard has lateral edges, and protective guard is arranged to a part of upper end and the hanger bar of roughly surrounding deposition plate, substantially to surround joint; Anticorrosive is placed in the passage between protective guard and hanger bar, in order to be formed in the sealing of the basic continous extended around hanger bar, thus at least hinders fluid to flow into protective guard from lateral edges.

Passage to be formed in protective guard and adjacent with lateral edges.Electrolysis cathode assembly also comprises the entrance of at least one and passage.At least one entrance is formed in protective guard.At least one entrance is formed in the side wall of protective guard, with channel alignment.

Electrolysis cathode assembly also comprises at least one and is built in support component in hanger bar.Deposition plate is attached in hanger bar by least one weld seam, and protective guard is attached on deposition plate by least one weld seam.Anticorrosive can comprise epoxy resin.Deposition plate is formed by stainless steel with protective guard.Hanger bar is formed by copper.

Electrolyzer comprises: include the container of electrolyzer, comprise anode assemblies in a cell, comprise cathode assembly as described herein in a cell and be electrically connected to anode assemblies and cathode assembly to form the power supply of electrolyzer.

In electrolyzer, the method for electrorefining or electrowinning metals comprises: providing package is containing the container of electrolyzer; There is provided anode assemblies in a cell; Cathode assembly described herein is provided in a cell; Power supply is provided; Power electric is connected to anode assemblies and cathode assembly to form electrolyzer; Apply enough electric currents to electrolyzer, to make the metal ion deposition in electrolyzer on the surface of the deposition plate of cathode assembly.

In one aspect of the invention, the method forming the protective guard being used for electrolysis cathode assembly (electrolysis cathode assembly has conduction hanger bar and attaches to hanger bar along upper end thus the deposit plate of formation joint) comprises: provide at least one material; This material of bending is to form multiple sidewalls of the center cavity being defined for the hanger bar holding electrolysis cathode assembly, and wherein described multiple sidewall of protective guard is separated by interval, to adopt the mode be slidably matched to hold hanger bar.

Bending step comprises the operation of at least one die forming.This material is arranged to a part for the upper end surrounding hanger bar and deposition plate substantially, substantially to surround joint.The sidewall of this material by bending roughly to engage with hanger bar.The longitudinal edge of this material is welded on deposition plate.

Described method is also included in this material and forms passage, and injects anticorrosive in the passage between protective guard and hanger bar, to be formed in the sealing of the basic continous extended around hanger bar.Forming step comprises the operation of at least one die forming.Described method is also included in this material the entrance generating at least one and passage, and implantation step comprises and being injected at least one entrance by anticorrosive.Generation step comprises the operation of at least one die forming.

Accompanying drawing explanation

Here the accompanying drawing comprised for illustrating multiple examples of apparatus of the present invention and method, and is not used in the scope that restriction by any way instructs.In the accompanying drawings:

Fig. 1 is the partial side elevation view of the electrolysis cathode assembly according to first example;

Fig. 2 is the partial perspective view of the cathode assembly in Fig. 1;

Fig. 3 is the partial side elevation view of the amplification of the side of the cathode assembly of Fig. 1;

Fig. 4 is the sectional view along the line 4-4 in Fig. 1;

Fig. 5 is the sectional view along the line 5-5 in Fig. 1;

Fig. 6 and Fig. 7 is the partial perspective view of the side end of protective guard before and after at least the first forming step of the cathode assembly of Fig. 1 respectively;

Fig. 8, Fig. 9 and Figure 10 are the stereographic map of protective guard after at least the second forming step of Fig. 6 and Fig. 7, end view and vertical view;

Figure 11 is the reversion of the side end of the cathode assembly of Fig. 1, the partial perspective view of amplification;

Figure 12 is the sectional view along the line 12-12 in Fig. 3; And

Figure 13 is the schematic isometric of exemplary electrolyzer.

Embodiment

The following describe multiple device or method to provide the example of the embodiment of each claimed invention.Embodiment described below does not all limit any claimed invention, and any claimed invention can be contained and different apparatus and method are described below.Claimed invention is not restricted to the apparatus and method of the whole features possessing arbitrary device described below or method, or is not restricted to multiple or whole device described below or the common feature of method.Device described below or method can not be the embodiments of any claimed invention.Disclosed in device described below or method but do not have in this document claimed any invention can be other protection files (such as; the patent application of continuity) subject name, applicant, contriver and/or obligee are by disclosing and being not intended to abandon, deny any this invention or offered to the public in this document.

The electrolytic refining of metal needs to be placed on by anode in suitable electrolyzer together with negative electrode, and its Anodic is made up of the crude metal needing by concise.Apply voltage between a cathode and an anode, cause crude metal to be oxidized, pure metal ions to enter in solution and mobile to catholyte through electrolyzer.Be deposited on pure metal ions on negative electrode as finishing metal, there is very high purity usually.Major part impurity has been stayed in electrolyzer.

The electrowinning of metal needs to be placed on by anode in suitable electrolyzer together with negative electrode, and its Anodic is made by being different from metal metal to be refined.Treat that the metal of refining is added in electrolyzer with soluble form (such as, being prepared by leaching and solvent extraction process).Apply voltage between the anode and cathode, make metal to move to negative electrode from solution and be deposited thereon, as highly purified finishing metal.

Typical cathode assembly comprises the smooth deposition plate being attached to conduction hanger bar along upper end.Hanger bar and external power source electrical contact.Under some configuration, the two-end part of hanger bar is on the bus bar extended along container edge.Under other configuration, an end of hanger bar is positioned on the bus bar that extends along pond container edge, and another end of hanger bar is positioned on the electrical isolation bar that the opposite edges along container extend.Hanger bar supports the deposit plate being arranged in electrolyzer, and is the current supplying path between power supply and deposit plate.

Depositing to after the concise metal on deposition plate surface arrives suitable thickness, cathode assembly is shifted out from electrolyzer.(such as, formed by other metals being different from the metal treating refining) under deposit plate is permanent situation, the metal after refining can be regained by any known lift-off technology.Usually, the vertical lateral edges of deposition plate is capped or protect, and only deposits around the flat side of deposition plate and the lower rim of deposition plate to make copper or other desired metal.

In some cases, cathode assembly comprises the conduction hanger bar (such as, copper) be bound up with permanent deposition plate (such as, stainless steel).The upper end of deposition plate is inserted in the slit or groove that arrange on the downside of hanger bar usually.Then by welding, deposition plate is attached to hanger bar.The hanger bar weight of hollow is lighter, and material cost is lower.International Application Serial No. PCT/CA2008/001470 and PCT/CA2011/050656 discloses the example of cathode assembly, and its full content is incorporated into this by way of reference accordingly.

See figures.1.and.2, the Reference numeral of the electrolysis cathode assembly shown in it is generally 10.Electrolysis cathode assembly 10 comprises hanger bar 12.Hanger bar 12 is made of copper substantially.In some instances, hanger bar 12 is made up of C11000 electrolytic tough pitch (ETP).

Referring now to Fig. 5, in the example illustrated, hanger bar 12 is hollow.But in some instances, hanger bar can be solid.As shown in figure, hanger bar 12 can shape as having the rectangular tube of substantially smooth top and smooth side, the bottom of hanger bar 12 is circular.Although show rounded bottom, bottom also can be smooth, and generally speaking the profile of hanger bar 12 can have multiple.

Be (as shown) in the example of hollow structure in hanger bar 12, electrolysis cathode assembly 10 comprises at least one alternatively and is built in support component 14 in hanger bar 12.The exterior contour of support component 14 and the in-profile of hanger bar 12 roughly complementary, to guarantee a good cooperation thus to make support component 14 can reinforce hanger bar 12.Support component 14 can be fixed to hanger bar 12 by the combination of shrink-fit, bonding, welding or more mode.As shown, support component 14 also can be hollow, and can shape as rectangular tube.

In the example illustrated, continue with reference to Fig. 1, the support component of two shown in it 14 only partly extends between the relative end of hanger bar 12.Each support component 14 is placed in adjacent with point other end of hanger bar 12, and is placed in the extension of hanger bar 12 at least in part, and each panel edges 18 that extension exceeds deposition plate 16 extends.In some instances, the inner end of support component 14 is relative to dividing other in the panel edges 18 of deposition plate 16 to bias internal.

It is to be appreciated that support component 14 is for reinforcing hanger bar 12.In the example illustrated, extension is in exposure usually, and when using electrolysis cathode assembly 10 in electrolytic vessel, most of weight of extension carrying electrolysis cathode assembly 10.Support component 14 is arranged to other parts load being distributed to hanger bar 12 from extension.Support component 14 is also arranged to prevent the extension of hanger bar 12 (extension is exposed to outside the side end of protective guard 34 usually) from producing bending, depression etc.By only partly extending between the end of hanger bar 12, relative to the bracing member extended between the end of hanger bar 12 fully, support component 14 can saving in weight.

Support component 14 is made up of the electro-conductive material with relatively high tensile strength (tensile strength).Because support component 14 can not be exposed in the corrosive fluid in electrolyzer and/or negative electrode cleaning process usually, thus do not need protection against corrosion.In some instances, support component 14 can such as, be made up of carbon steel, 300 series stainless steels (comprising, 304 stainless steels), ferritic stainless steel or duplex stainless steel.In some instances, support component 14 is with the thickness of No. 16 (16-gauge) or thicker thickness manufacture.

In the example illustrated, referring now to Fig. 3, the outer end 28 of support component 14 offsets relative to end cover 30, to limit expansion gap 32.End cover 30 can be configured to the end of sealed suspension bar 12, and end cover 30 can pass through shrink-fit, bonding, welding, or the combination of aforesaid way is fixed in hanger bar 12.

Referring again to Fig. 1 and Fig. 2, electrolysis cathode assembly 10 also comprises deposition plate 1.Deposition plate 16 is made up of the electro-conductive material with relatively high tensile strength and good non-corrosibility.In some instances, deposition plate 16 can have the alloy that can accept anticorrosion properties and (such as) " 2B " polished surface (finish) by the stainless steel of 316L grade or other and makes.Be appreciated that and can adopt multiple polished surface based on application-specific.

In the example illustrated, deposition plate 16 comprises panel edges 18 and is attached to the upper limb 20 of hanger bar 12.In the example illustrated, panel edges 18 overwhelming majority is covered by edge strip 46, and edge strip 46 can roughly stop copper or the metal desired by other to precipitate along panel edges 18.

By arranging slit and deposition plate 16 is welded to (as Suo Shi 36 in Fig. 4) in hanger bar 12 in hanger bar 12, deposition plate 16 can be attached to hanger bar 12.Alternatively, deposition plate 16 also can not be welded direct in hanger bar 12 by slit.Due in use can big current be produced, in order to avoid the big current on respective location is concentrated, deposition plate 16 adopts continuous weld (continuous weld) or seam weldering (stitch weld) to be welded in hanger bar 12 along hanger bar 12 length in one or both sides.Be understandable that, although reference here is be welded in hanger bar 12 by deposition plate 16, because they are formed by differing materials, welding described herein should be brazing but not the welding operation of reality.

Deposition plate 16 is provided with opening 44, to be taken out from container (not shown) by electrolysis cathode assembly 10.Alternatively, other electrolysis cathode assemblies can arrange suspension hook.

Continue to see figures.1.and.2, electrolysis cathode assembly 10 comprises the protective guard 34 be arranged on around hanger bar 12.In the example illustrated, protective guard 34 covers weld seam 36 (Fig. 4), and substantially surrounds the joint limited by deposition plate 16 upper limb 20 and hanger bar 12.Longitudinal edge and the deposition plate 16 of protective guard 34 are adjacent, and can be welded on deposition plate 16, as shown in the Reference numeral 38 in Fig. 4.Weld seam 38 can extend along whole length of the longitudinal edge of protective guard 34, and contacts with deposition plate 16 at the longitudinal edge place of protective guard 34.Protective guard 34 is that electrolysis cathode assembly 10 provides extra structural strength, and protective guard 34 can be formed by with the same or analogous material of deposition plate 16 (such as but be not limited to stainless steel or other have the alloy that can accept anti-corrosion property).

Referring now to Fig. 3, there are side end or the lateral edges 40 of the panel edges 18 extending beyond precipitation plate 16 in each end of protective guard 34.Lateral edges 40 makes the part of hanger bar 12 extension (being arranged in each end of hanger bar 12) be in exposure.The longitudinal edge of the protective guard 34 adjacent with lateral edges 40 is directly opposite one another; If necessary, longitudinal edge can also be out of shape or extrude to make them adjacent or close to each other.Then, weld seam 38 is extended these parts (with reference to Figure 11) of blocking protective guard 34.Generally speaking, the program is used for guaranteeing: about protective guard 34 and deposition plate 16, and substantially except lateral edges 40 place at protective guard 34, other has continuous weld or sealer everywhere, and do not stay can the opening of osmotic fluid.

Fig. 6-10 shows the multiple forming step manufacturing protective guard 34 and need.In some instances, protective guard 34 can be formed by using the operation of multiple die forming.In some instances, protective guard 34 can be formed by using the progressive die (progression die), and relatively less at the bending increment of punching press stage execution.

In Fig. 6, first protective guard 34 by a material (such as stainless steel) through bending or otherwise distortion limit middle body 22, downside wall 24 and downside wall 26.Middle body 22 comprises lateral edges 40 (with another lateral edges on the other end of protective guard 34).Downside wall 24 and downside wall 26 comprise the longitudinal edge 52 and longitudinal edge 54 that extend between lateral edges 40 and another lateral edges (not shown) substantially respectively.In Fig. 7, define groove or depression at middle body 22 and downside wall 24, downside wall 26 place, to limit roughly adjacent with lateral edges 40 and to be parallel to the passage 42 that lateral edges 40 extends.Passage 42 uses one or more Mould operation to be formed.In the example illustrated, defined the entrance 48 of aligned with channel 42 by boring, punching, acanthopore or other modes through middle body 22.

With reference to Fig. 8-10, middle body 22 bending or be otherwise out of shape, to limit side wall 56, sidewall 58 and sidewall 60 further.Sidewall 24, sidewall 26, sidewall 56, sidewall 58 and sidewall 60 limit the center cavity for holding hanger bar 12.Space between sidewall 58 and sidewall 60 is selectively arranged to guarantee the enough gaps for hanger bar 12; space between longitudinal edge 52 and longitudinal edge 54 is selectively arranged to guarantee the enough gaps for deposition plate 16, to guarantee being slidably matched between protective guard 34 and the assembly comprising hanger bar 12 and deposition plate 16.

When on the position relevant with deposition plate 16 to hanger bar 12, sidewall 58 and sidewall 60 can bendings, engage further, surround hanger bar 12 closely to make protective guard 34 with hanger bar 12.Then weld seam 38 (Fig. 4) is completed.As mentioned above; the longitudinal edge 52 adjacent with lateral edges 40 of protective guard 34 and longitudinal edge 54 can be out of shape or extrude further; make it adjacent to each other or close, weld seam 38 can be extended these parts (as shown in figure 11) of blocking protective guard 34.

With reference to Figure 11, protective guard 34 can be set to closely surround hanger bar 12, but also without the need in order to prevent fluid permeability and too tight.Corrosive fluid from electrolyzer and/or negative electrode clean permeates potentially between protective guard 34 and hanger bar 12, usually at lateral edges 40 place of protective guard 34.

In each end of protective guard 34, passage 42 is injected into non-corrosibility material.Material provides sealing between protective guard 34 and hanger bar 12, at least to hinder fluid to flow in protective guard 34, and effectively prevents the likelihood of corrosion between protective guard 34 and hanger bar 12.

Term " anticorrosive " typically refers to the corrosion of the liquid (cathode assembly can be exposed in these liquid in use) at least can resisting electrolyzer and negative electrode cleaning use as used herein.Material also can high temperature resistance, the temperature up to about 500oF or higher (such as, under short-circuit conditions) that such as electrolysis cathode assembly 10 can stand.Material or runny, has the ability of flowing in passage 42, to extend around hanger bar 12.Material is normally nonmetallic, usually non-conductive.In some instances, material can be polymerization.In some instances, material can be thermosetting resin.In some specific examples, material can be (such as but not limited to) bi-component epoxide-resin.

As shown in figure 12, passage 42 can extend around the whole periphery of hanger bar 12 substantially, provides continuous sealing to make anticorrosive (Reference numeral is for 50) between protective guard 34 and hanger bar 12.Adopt in this way; anticorrosive 50 can be formed and can stop or at least hinder or greatly reduce the Fluid Sealing that liquid enters into any space between protective guard 34 and hanger bar 12, thus reduces the possibility (Fig. 4) of liquid comes into contact to the weld seam 36 of the corrosion-vulnerable between precipitation plate 16 and hanger bar 12.

In some instances, anticorrosive can be injected in passage 42 by entrance 48.Entrance 48 extends through protective guard 34, is communicated with protective guard 34 external fluid to make passage 42.Anticorrosive is transported in passage 42 by entrance 48 with fluid form, and can dry or solidification.In the example illustrated, entrance 48 is arranged along the side wall 56 of protective guard 34.By this layout, anticorrosive can be distributed to the opposite flank of passage 42 substantial uniformly through entrance 48, until appear at the edge 52 of sidewall 24 and the edge 54 of sidewall 26 from the anticorrosive of passage 42.In another example, entrance 48 is arranged in other parts of protective guard.In some instances, can not inlet porting 48, anticorrosive is passable, such as, be directly injected in passage 42 at edge 54 place of the edge 52 of sidewall 24 and sidewall 26.Various structures can be adopted.

Referring now to Figure 13, show the layout of electrolyzer, be generally referenced as 100.Here, anode 102 and negative electrode 104 are suspended in container 106.Usually, electrowinning is similar with the layout of electrolytic refining.For electrowinning, provide the solution with expectation metal (such as, copper).Subsequently, the metal that electrolytic action is provided for copper or expectation is deposited on negative electrode.In electrorefining, by the metal (such as, or copper) that regains as anode, and enter into solution by electrolytic action and deposit on negative electrode; State is set to promote that the copper expected is deposited on negative electrode by electrolytic refining operation, makes other less desirable metal and other materials stay in the solution simultaneously, or does not otherwise deposit on negative electrode.

Here, anode 102 and negative electrode 104 is shown.Connection to power supply (not shown) is represented as mark 118.Select electrolytic solution or electrolyzer to be applicable to the concrete operations of such as electrowinning or electrolytic refining, and electrolytic solution or electrolyzer will maintain the temperature of expectation, etc.

Although above description provided the example of one or more device or method, should be appreciated that, other devices or method also can be included in and enclose in the scope of claim.

Claims

1. manufacture a method for electrolysis cathode assembly, comprising:

Deposition plate is attached to conduction hanger bar along upper end, to limit joint;

Form protective guard, described protective guard comprises lateral edges;

Described protective guard is arranged to roughly surround a part of upper end of described deposition plate and described hanger bar, substantially to surround described joint; And

Anticorrosive is injected in the passage between described protective guard and described hanger bar, to be formed in the sealing of the basic continous extended around described hanger bar, thus at least hinders fluid to flow in described protective guard at described lateral edges place.

2. method according to claim 1, wherein, forming step is included in the described passage that in described protective guard, formation is adjacent with described lateral edges.

3. method according to claim 2, wherein, forming step comprises and forms described protective guard by a material.

4. method according to claim 3, wherein, forming step comprises this material of bending to form sidewall, and described sidewall is defined for the center cavity holding described hanger bar.

5. method according to claim 4, wherein, forming step comprises this material of bending, and the sidewall of described protective guard is separated by interval, to adopt the mode be slidably matched to hold described hanger bar.

6. method according to claim 5, wherein, deposition step comprises sidewall described in bending, to engage described hanger bar substantially.

7. the method according to any one of claim 3-6, wherein, forming step comprises this material of bending, to make the longitudinal edge of described protective guard be separated by interval, to adopt the mode be slidably matched to hold described deposition plate.

8. side according to claim 7 sends out, and wherein, deposition step comprises described longitudinal edge is welded to described deposition plate.

9. the method according to any one of claim 1-8, wherein, the entrance that implantation step comprises at least one and described passage injects anticorrosive.

10. method according to claim 9, wherein, forming step is included on described protective guard and forms entrance described at least one.

11. methods according to claim 10, wherein, the side wall that forming step is included in described protective guard are formed the described entrance of at least one and described channel alignment.

12. methods according to any one of claim 1-11, are also included at least one support component built-in in described hanger bar.

13. methods according to any one of claim 1-12, also comprise, by least one weld seam, described deposition plate are attached to described hanger bar, and by least one weld seam, described protective guard is attached to described deposition plate.

14. methods according to any one of claim 1-13, wherein, described anticorrosive comprises epoxy resin.

15. methods according to any one of claim 1-14, also comprise and form described deposition plate and described protective guard by stainless steel.

16. methods according to any one of claim 1-15, also comprise and form described hanger bar by copper.

The electrolysis cathode assembly that 17. 1 kinds of methods according to any one of claim 1-16 manufacture.

18. 1 kinds of electrolysis cathode assemblies, comprising:

Conduction hanger bar;

Deposition plate, described deposition plate is attached to described hanger bar along upper limb, to limit joint;

Protective guard, described protective guard comprises lateral edges, and described protective guard is arranged to surround a part of upper end of described deposition plate and described hanger bar substantially, substantially to surround described joint; And

Anticorrosive, described anticorrosive is placed in the passage between described protective guard and described hanger bar, to be formed in the sealing of the basic continous extended around described hanger bar, thus at least hinders fluid to flow in described protective guard at lateral edges place.

19. electrolysis cathode assemblies according to claim 18, wherein, described passage is formed in described protective guard, and adjacent with described lateral edges.

20. electrolysis cathode assemblies according to claim 19, also comprise the entrance of at least one and described passage.

21. electrolysis cathode assemblies according to claim 20, wherein, entrance described at least one is formed in described protective guard.

22. electrolysis cathode assemblies according to claim 21, wherein, entrance described at least one is formed in the side wall of described protective guard, with described channel alignment.

23. electrolysis cathode assemblies according to any one of claim 18-22, also comprise at least one and are built in support component in described hanger bar.

24. electrolysis cathode assemblies according to any one of claim 18-23, wherein, described deposition plate is attached by least one weld seam and described hanger bar, and described protective guard passes through at least one weld seam and described deposition plate is attached.

25. electrolysis cathode assemblies according to any one of claim 18-24, wherein, described anticorrosive comprises epoxy resin.

26. electrolysis cathode assemblies according to any one of claim 18-25, wherein, described deposition plate and described protective guard are formed by stainless steel.

27. electrolysis cathode assemblies according to any one of claim 18-26, wherein, described hanger bar is formed by copper.

28. 1 kinds of electrolyzers, comprising:

Container, described container comprises electrolyzer;

Anode assemblies, described anode assemblies is included in described electrolyzer;

Be included in the cathode assembly described in any one of claim 17-27 in described electrolyzer; And

Power supply, described power supply is electrically connected with described anode assemblies and described cathode assembly, to form described electrolyzer.

29. in electrolyzer the method for electrorefining or electrowinning metals, described method comprises:

The container comprising electrolyzer is provided;

There is provided anode assemblies in a cell;

Cathode assembly described in any one of claim 17-27 is provided in a cell;

Power supply is provided;

Described power electric is connected to described anode assemblies and described cathode assembly, to form electrolyzer; And

Enough electric currents are applied, to make the metal ion in described electrolyzer at the deposited on silicon of the described deposition plate of cathode assembly to described electrolyzer.

30. formation are used for the method for the protective guard of electrolysis cathode assembly, and described electrolysis cathode assembly comprises conduction hanger bar and is attached to described hanger bar along upper end to limit the deposition plate of joint, and described method comprises:

At least one material is provided; And

This material of bending is to form sidewall, and described sidewall is defined for the center cavity of the hanger bar holding described electrolysis cathode assembly;

Wherein, the sidewall of described protective guard is separated by interval to adopt the mode be slidably matched to hold described hanger bar.

31. methods according to claim 30, wherein, bending step comprises the operation of at least one die forming.

32. methods according to claim 30 or 31, also comprise a part of upper end and described hanger bar that this web of material to be set to and to surround described deposition plate substantially, substantially to surround described joint.

33. methods according to claim 32, wherein, deposition step comprises the sidewall of this material of bending, to engage described hanger bar substantially.

34. methods according to any one of claim 31-33, wherein, deposition step comprises the longitudinal edge of this material is welded to described deposition plate.

35. methods according to any one of claim 31-34; also be included in this material and form passage; anticorrosive is injected in the described passage between described protective guard and described hanger bar, to be formed in the sealing of the basic continous extended around described hanger bar.

36. methods according to claim 35, wherein, forming step comprises the operation of at least one die forming.

37. methods according to claim 35 or 36, are also included in this material the entrance producing at least one and described passage, and implantation step comprises and injects described anticorrosive to entrance described at least one.

38. according to method according to claim 37, and wherein, generating step comprises the operation of at least one die forming.

39. 1 kinds of electrolysis cathode assemblies or manufacture the method for electrolysis cathode assembly, comprise described above and/or arbitrary combination that is claimed and/or the one or more features shown in accompanying drawing above.