CN113755903A - Integrated into one piece electrolysis copper negative plate - Google Patents
Integrated into one piece electrolysis copper negative plate Download PDFInfo
- Publication number
- CN113755903A CN113755903A CN202111180874.6A CN202111180874A CN113755903A CN 113755903 A CN113755903 A CN 113755903A CN 202111180874 A CN202111180874 A CN 202111180874A CN 113755903 A CN113755903 A CN 113755903A
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- China
- Prior art keywords
- cathode plate
- stainless steel
- copper
- plate
- conducting rod
- 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.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 36
- 239000010949 copper Substances 0.000 title claims abstract description 36
- 238000005868 electrolysis reaction Methods 0.000 title claims description 9
- 239000010935 stainless steel Substances 0.000 claims abstract description 46
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 46
- 239000002905 metal composite material Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 claims description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 239000011135 tin Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 238000009854 hydrometallurgy Methods 0.000 abstract 1
- 238000005219 brazing Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention belongs to the field of non-ferrous metal hydrometallurgy, and relates to an integrally formed electrolytic copper negative plate. The cathode plate mainly comprises a conducting rod and a cathode plate, wherein the conducting rod and the cathode plate are integrally formed by a metal composite plate. The conductive channel between the conductive rod and the cathode plate has no connecting interface, so that the voltage drop and the heating of the traditional stainless steel cathode plate caused by large resistance of the connecting interface are avoided. The current passes through the conducting layer of the conducting rod and directly penetrates through the cathode plate, and the current density is uniform. The cathode plate has the advantages of difficult short circuit, low energy consumption, high cathode copper quality, high production efficiency, long service life of the cathode plate and the like in a high-current-density electrolytic copper process.
Description
Technical Field
The invention belongs to the field of wet electrolytic metallurgy, and particularly relates to an integrally formed electrolytic copper negative plate.
Background
The permanent stainless steel cathode plate electrolysis process has the advantages of reusable cathode plate, long service life, short flow, high current density, good electrolytic copper quality, high production efficiency and the like. At present, enterprises which put into production and produce more than 2000 million tons of cathode copper in construction years all adopt a permanent stainless steel cathode plate electrolysis process, and the current density is 280-330A/m 2. With the further development of copper electrolytic refining towards high efficiency, energy conservation, high quality and environmental protection, the parallel flow technology of intensified electrolysis is developed, and the current density is improved to more than 420A/m 2. The improvement of current density causes the increase of bath voltage, the heating of a cathode plate, the uneven current density, the short circuit of a cathode and an anode, and the like, so that the energy consumption of electrolytic copper is increased, the quality of cathode copper is reduced, and the further improvement of production efficiency is influenced. Meanwhile, the service life of the stainless steel cathode plate under high current density is greatly shortened.
At present, the electrolytic copper stainless steel cathode plate is prepared by connecting a conducting rod and a stainless steel cathode plate. When the negative plate works, current is transmitted to the stainless steel negative plate through the connecting interface of copper and stainless steel in the conducting rod. Because the copper-stainless steel connection interface area is small, the stainless steel cathode plate resistance is large, and the bottom end of the cathode plate is far away from the current transmission interface (copper-stainless steel connection interface), the copper-stainless steel interface generates heat seriously and affects the current density uniformity under the high current density electrolysis process.
Aiming at the problems of energy consumption increase, poor cathode copper quality and the like of the conventional electrolytic copper stainless steel cathode plate in a high current density electrolysis process, a method for integrally manufacturing a permanent cathode plate for electrolytic copper by adopting a metal composite plate is provided.
Disclosure of Invention
The invention provides an integrally formed electrolytic copper negative plate, which aims at solving the problems of increased energy consumption, short service life of the negative plate, poor quality of cathode copper and the like of the conventional electrolytic copper stainless steel negative plate in a high-current density electrolysis process.
The invention is completed by the following technical scheme.
The integrally formed electrolytic copper cathode plate mainly comprises a conductive rod and a cathode plate. The method is characterized in that: the conducting rod and the cathode plate are integrally formed by a metal composite plate.
The negative plate is characterized in that: there is no connecting interface between the conducting rod and the cathode plate.
The negative plate is characterized in that: the composite board is a stainless steel-copper-stainless steel metal composite board.
The negative plate is characterized in that: the conducting rod is prepared by folding a composite plate.
The negative plate is characterized in that: in the stainless steel-copper-stainless steel metal composite plate, pure metals such as tin, gold, silver, nickel, aluminum, copper, iron and the like and alloys such as tin-copper, silver-copper, nickel-titanium, nickel-copper alloy and the like can be added between stainless steel-copper and copper-stainless steel composite layers to form a multilayer metal composite plate.
The negative plate is characterized in that: and (4) machining and removing the stainless steel surface layer to expose the copper layer in the conductive contact area of the conductive rod, namely the bottoms of the two sides of the conductive rod.
The negative plate is characterized in that: all exposed end faces of copper and stainless steel interfaces in the conducting rod are welded and sealed, and two ends of the conducting rod are welded and sealed by stainless steel plates.
The negative plate is characterized in that: and all exposed end surfaces of the copper and stainless steel interfaces of the cathode plate are curled by stainless steel and welded and sealed, and no copper layer is exposed.
The negative plate is characterized in that: and welding and sealing an extrusion interface between the conducting rod and the cathode plate, namely a stainless steel and stainless steel interface.
In summary, the invention has the following advantages:
1. in the invention, a permanent cathode plate for electrolytic copper is integrally formed by one metal composite plate, and the preparation process is simple. The conducting rod is prepared by folding, the conducting rod and the cathode plate are communicated by the composite plate, and no connecting interface such as welding, mechanical fastening and the like exists. Thereby avoiding the voltage drop and the heating of the traditional stainless steel cathode plate caused by the large resistance of the connecting interface between the conducting rod and the cathode plate.
2. In the invention, the current directly penetrates through the whole plate surface of the cathode plate through the central copper layer through the conducting rod, the current density is uniform, the cathode copper quality is high, and the short circuit is not easy to occur in the production process.
3. The invention has the advantages of low energy consumption, high production efficiency, long service life of the cathode plate and the like in the high-current-density electrolytic copper process.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a sectional view taken along a-a of fig. 1 according to the present invention.
Fig. 3 is a cross-sectional view of the ear-hanging end of the conductive rod of fig. 1 taken along the direction B-B in accordance with the present invention.
Fig. 4 is a cross-sectional view taken along line C-C of the cathode plate of fig. 1 according to the present invention.
The method comprises 11 conductive rods, 12 cathode plates, 21 laser welding, 31 brazing welding, 32 laser welding and 41 laser welding.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
In one embodiment of the present invention, as shown in fig. 1-4, there is provided an integrally formed electrolytic copper cathode plate, which mainly comprises a conductive rod and a cathode plate. The conducting rod (11) and the cathode plate (12) are made of a high-conductivity stainless steel-copper-stainless steel composite plate, wherein the composite plate is made of 316L stainless steel with the thickness of 2mm, T2 red copper with the thickness of 1.5mm and 316L stainless steel with the thickness of 2 mm. The composite plate is folded and extruded to prepare the cathode plate with the conductive rod and the cathode plate which are integrally formed, wherein the height of the section of the conductive rod is 38mm, and the width of the section of the conductive rod is 32 mm.
As shown in fig. 2, the conductive path between the conductive rod and the cathode plate in the integrally formed cathode plate is penetrated by the copper layer without a connection interface. And laser welding and sealing the stainless steel and stainless steel interface.
As shown in fig. 3, the conductive contact area (ear) of the conductive rod, i.e. the bottom of the two sides of the conductive rod, is milled to remove the stainless steel surface layer and expose the copper layer. The exposed end surface of the copper-stainless steel interface in the conducting rod and the stainless steel-stainless steel interface are respectively sealed by brazing welding (31) and laser welding (32) to enhance the corrosion resistance. In addition, both ends of the conductive rod are welded and sealed by stainless steel plates.
As shown in FIG. 4, the exposed end face of the copper-stainless steel interface of the cathode plate is crimped with stainless steel and sealed by laser welding (41) without exposing the copper layer, thereby improving the corrosion resistance.
While the present invention has been described in detail with reference to the illustrated embodiments, it should not be construed as limited to the scope of the present patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (9)
1. The utility model provides an integrated into one piece electrolysis copper negative plate, mainly includes conducting rod and negative pole polar plate, its characterized in that: the conducting rod and the cathode plate are integrally formed by a metal composite plate.
2. A cathode plate as claimed in claim 1, wherein: there is no connecting interface between the conducting rod and the cathode plate.
3. A cathode plate as claimed in claim 1, wherein: the composite board is a stainless steel-copper-stainless steel metal composite board.
4. A cathode plate as claimed in claim 1, wherein: the conducting rod is prepared by folding a composite plate.
5. A cathode plate according to claim 3, characterized in that: in the stainless steel-copper-stainless steel metal composite plate, pure metals such as tin, gold, silver, nickel, aluminum, copper, iron and the like and alloys such as tin-copper, silver-copper, nickel-titanium, nickel-copper alloy and the like can be added between stainless steel-copper and copper-stainless steel composite layers to form a multilayer metal composite plate.
6. A cathode plate according to claim 4, characterized in that: and (4) machining and removing the stainless steel surface layer to expose the copper layer in the conductive contact area of the conductive rod, namely the bottoms of the two sides of the conductive rod.
7. A cathode plate according to claim 4, characterized in that: all exposed end faces of copper and stainless steel interfaces in the conducting rod are welded and sealed, and two ends of the conducting rod are welded and sealed by stainless steel plates.
8. A cathode plate as claimed in claim 1, wherein: and all exposed end surfaces of the copper and stainless steel interfaces of the cathode plate are curled by stainless steel and welded and sealed, and no copper layer is exposed.
9. A cathode plate as claimed in claim 1, wherein: and welding and sealing an extrusion interface between the conducting rod and the cathode plate, namely a stainless steel and stainless steel interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111180874.6A CN113755903A (en) | 2021-10-11 | 2021-10-11 | Integrated into one piece electrolysis copper negative plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111180874.6A CN113755903A (en) | 2021-10-11 | 2021-10-11 | Integrated into one piece electrolysis copper negative plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113755903A true CN113755903A (en) | 2021-12-07 |
Family
ID=78799039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111180874.6A Pending CN113755903A (en) | 2021-10-11 | 2021-10-11 | Integrated into one piece electrolysis copper negative plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113755903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921812A (en) * | 2022-06-01 | 2022-08-19 | 金隆铜业有限公司 | Cathode electrolytic copper pickup device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534689A (en) * | 2012-02-28 | 2012-07-04 | 中国恩菲工程技术有限公司 | Negative plate for metal electro-deposition |
| CN105862076A (en) * | 2016-06-06 | 2016-08-17 | 杭州帝洛森科技有限公司 | Electrolytic zinc cathode conductive beam and preparation method thereof |
| CN213772239U (en) * | 2020-12-18 | 2021-07-23 | 晋宁理工恒达科技有限公司 | High-conductivity stainless steel cathode plate of copper-clad-steel composite beam |
| JP2021155800A (en) * | 2020-03-26 | 2021-10-07 | 日立Astemo株式会社 | Production method of rod, and cathode member |
-
2021
- 2021-10-11 CN CN202111180874.6A patent/CN113755903A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534689A (en) * | 2012-02-28 | 2012-07-04 | 中国恩菲工程技术有限公司 | Negative plate for metal electro-deposition |
| CN105862076A (en) * | 2016-06-06 | 2016-08-17 | 杭州帝洛森科技有限公司 | Electrolytic zinc cathode conductive beam and preparation method thereof |
| JP2021155800A (en) * | 2020-03-26 | 2021-10-07 | 日立Astemo株式会社 | Production method of rod, and cathode member |
| CN213772239U (en) * | 2020-12-18 | 2021-07-23 | 晋宁理工恒达科技有限公司 | High-conductivity stainless steel cathode plate of copper-clad-steel composite beam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114921812A (en) * | 2022-06-01 | 2022-08-19 | 金隆铜业有限公司 | Cathode electrolytic copper pickup device |
| CN114921812B (en) * | 2022-06-01 | 2023-12-15 | 金隆铜业有限公司 | Cathode copper pick-up device |
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