AU2006100405A4 - Electrode Support Frame - Google Patents
Electrode Support Frame Download PDFInfo
- Publication number
- AU2006100405A4 AU2006100405A4 AU2006100405A AU2006100405A AU2006100405A4 AU 2006100405 A4 AU2006100405 A4 AU 2006100405A4 AU 2006100405 A AU2006100405 A AU 2006100405A AU 2006100405 A AU2006100405 A AU 2006100405A AU 2006100405 A4 AU2006100405 A4 AU 2006100405A4
- Authority
- AU
- Australia
- Prior art keywords
- frame
- support frame
- electrode support
- legs
- steel reinforcing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 239000004814 polyurethane Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 238000005363 electrowinning Methods 0.000 description 2
- 229920006379 extruded polypropylene Polymers 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
Landscapes
- Electrolytic Production Of Metals (AREA)
Description
P/00/009 Regulation 3.2
AUSTRALIA
Patents Act 1990 INNOVATION PATENT SPECIFICATION Invention Title: Electrode Support Frame Applicant: Jervent Mining Industrial Supplies CC The invention is described in the following statement: 1 T:Vatents%773I 15 (15-05-06) Innowation Pat Specdoc 2 ELECTRODE SUPPORT FRAME BACKGROUND TO THE INVENTION This invention relates to an electrode support frame. In particular, the invention relates to a support for an electrode, such as a cathode, of an electrolytic cell used for electrowinning of a metal, such as copper.
In electrolytic cells used in copper recovery, common practice has been to provide a support frame into which a cathode plate can be slipped vertically.
Electrodeposition of the copper onto the cathode takes place during operation of the cell. After a certain amount of copper has been deposited on the plate, the plate is withdrawn from the support frame for recovery of the deposited material, and is replaced by a fresh plate so that the electrolysis process can continue.
It is necessary for the frame to have sufficient strength to take the weight of the inserted cathode plate as well as deposited material. It is also necessary for the frame to be electrically insulated from the cathode plate. To address these requirements, existing practice is to fit steel reinforcing components of the frame into extruded polypropylene liners, and thereafter to weld the reinforcing components to one another and also to weld the liners to one another, so that the steel is fully lined. It has however been found that frames made in this way are prone to rapid deterioration of the liners and corrosion of the steel reinforcement, necessitating frequent and costly replacement and/or refurbishment.
W.Speci773,15doc SUMMARY OF THE INVENTION According to the present invention there is provided an electrode support frame for supporting an electrode plate in an electrolytic cell, the support frame comprising a support structure of channel section into which the electrode plate can be slid, the support structure including an internal steel reinforcing frame of channel section and a polyurethane lining moulded onto and covering the steel reinforcing frame.
In the preferred embodiment, the support frame has generally a U-shape defined by spaced apart, operatively vertical legs defining between them an open top at their upper ends and a base extending between the lower ends of the legs. With such an arrangement, the electrode plate can be slid vertically downwardly into the frame through the open top. The internal steel reinforcing frame is also generally U-shaped. The frame may include mounting lugs which extend outwardly from the upper ends of the legs, in which case the steel reinforcing frame may also include outwardly extending elements located internally in such lugs.
The lining is preferably of a hard grade of polyurethane, typically one with a Shore A hardness of around BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail, by way of example only, with reference to the accompanying drawings in which: Figure 1 shows an elevation view of an electrode support frame according to the invention; Figures 2, 3 and 4 show enlarged cross-sections at the lines 2-2, 3-3 and 4-4 in Figure 1; and WASpcio.\7731,15do Figure 5 shows a cross-section, at a position corresponding to the line 2-2 in Figure 1, of a slightly modified frame.
DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS The electrode support frame 10 seen in Figure 1 is generally U-shaped and includes a support structure 12 having vertical legs 14 and a base 16 extending between the lower ends of the legs. In addition, the frame 10 includes a pair of outwardly extending mounting lugs 18 formed with holes 20. In use, frame 10 is mounted in position in an electrolysis tank (not shown) by means of fasteners (not shown) passing through the holes 20 and into a permanent structure of the tank.
Referring to Figures 2 and 3, the legs 14 and base 16 of the support structure 12 have an identical channel shape in cross-section, and include a continuous, inwardly facing groove or recess 22 extending about the U-shape. The recess 22 is also present at the inner extremities 24 of the lugs 18. In use, with the frame 10 at the illustrated, vertical attitude, side edges of a vertical, rectangular electrode plate (not shown), typically a cathode plate, are located in the opposing grooves 22 of the legs 14 and the plate is slide downwardly into the support structure 12 until the lower edge of the plate locates in the groove 22 of the base 16. The frame 10 accordingly supports the plate at a vertical attitude.
As is also shown in Figures 2, 3 and 4, the legs 14, base 16 and lugs 18, i.e. the entire frame 10, is internally reinforced by channel section steel reinforcement 26. The reinforcement 26 is provided by a unitary, fabricated steel channel section frame composed of channel section steel components 28, 30 and 32 welded to one another. All surfaces of the steel reinforcing frame are lined with a unitary polyurethane lining 34.
W:Spocies\773115.doc During manufacture, the fabricated steel reinforcing frame is placed in a mould and the components of the polyurethane, together with necessary additives such as accelerators and catalysts, are poured into the mould around the frame, so as to embed it completely, and setting is allowed to take place. A preferred polyurethane is Adiprene® L167 available from E I du Pont de Nemours Co.
In this case, the mould is heated, typically at a temperature of around 1000C, while setting takes place, whereafter the frame can be removed from the mould.
In the resulting, demoulded structure, the polyurethane lining is hard and abrasion resistant with a Shore A hardness of about In a typical application, the frame 10 is used to support a cathode plate in an electrolysis tank used in electrowinning of, for instance, copper in a base metal refinery. Initial testwork indicates that in this application, the frame has a longer life than conventional frames in which internal steel reinforcing components are slid into pre-extruded polypropylene sleeves. It is believed that this is attributable to the use of the relatively hard grade of polyurethane and the intimate bond which is achieved between the steel reinforcement and the lining as a consequence of the moulding process and which prevents any contact between corrosive materials and the steel itself.
As shown in Figure 1, the corners of the frame 10 are strengthened by internal, integral gussets 36 formed of polyurethane during the moulding process.
Frames having the structure described above can be used both as starter frames, at the start of the electrodeposition process and as production frames during the process. The drawings show a frame 10 prepared as a production frame. In a starter frame, the recess 22 will typically be somewhat shallower than the corresponding recess of the production frame.
Although cathode plates have been specifically mentioned it will be understood that frames according to the invention may also be used to support appropriately shaped and dimensioned anode plates.
W.%Spwl7731 15 d Figure 5 shows a slightly modified arrangement in which the bottom of the groove 22 has a more rounded shape than the groove 22 seen it the earlier Figures.
Throughout the description and claims of the specification the word "comprise" and variations thereof, such as "comprising" and "comprises", are not intended to exclude other additives, components, integers or steps.
W:\Sp-ci-l\773115 do
Claims (4)
1. An electrode support frame for supporting an electrode plate in an electrolytic cell, the support frame comprising a support structure of channel section into which the electrode plate can be slid, the support structure including an internal steel reinforcing frame of channel section and a polyurethane lining moulded onto and covering the steel reinforcing frame.
2. An electrode support frame according to claim 1 wherein the frame has generally a U-shape defined by spaced apart, operatively vertical legs defining between them an open top at their upper ends and a base extending between the lower ends of the legs.
3. An electrode support frame according to claim 2 wherein the internal steel reinforcing frame is also generally U-shaped.
4. An electrode support frame according to claim 2 or claim 3 wherein the legs and base of the frame include an inwardly facing groove in the moulded polyurethane lining. An electrode support frame according to any one of claims 2 to 4 and including mounting lugs which extend outwardly from the operatively upper ends of the legs, the steel reinforcing frame including outwardly extending elements located internally in the lugs. W: \Speci\773115 do
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200507352 | 2005-09-13 | ||
| ZA2005/07352 | 2005-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2006100405A4 true AU2006100405A4 (en) | 2006-06-15 |
Family
ID=36616617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2006100405A Ceased AU2006100405A4 (en) | 2005-09-13 | 2006-05-16 | Electrode Support Frame |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2006100405A4 (en) |
| ZA (1) | ZA200603770B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904467A (en) * | 2019-12-27 | 2020-03-24 | 昆明理工大学 | Assembled anode for synthesizing stannous octoate through electrochemical reaction and assembling method |
-
2006
- 2006-05-11 ZA ZA200603770A patent/ZA200603770B/en unknown
- 2006-05-16 AU AU2006100405A patent/AU2006100405A4/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904467A (en) * | 2019-12-27 | 2020-03-24 | 昆明理工大学 | Assembled anode for synthesizing stannous octoate through electrochemical reaction and assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200603770B (en) | 2006-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |