CN103643261A - Anti-corrosion metallic paint used in aluminum electrolysis field, and anode conductive device - Google Patents
Anti-corrosion metallic paint used in aluminum electrolysis field, and anode conductive device Download PDFInfo
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- CN103643261A CN103643261A CN201310694394.0A CN201310694394A CN103643261A CN 103643261 A CN103643261 A CN 103643261A CN 201310694394 A CN201310694394 A CN 201310694394A CN 103643261 A CN103643261 A CN 103643261A
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- anode
- steel pawl
- conducting device
- steel
- conducting rod
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Abstract
The invention relates to an anti-corrosion metallic paint used in the aluminum electrolysis field, and an anode conductive device, and solves the problems of an existing conductive device of great pressure reduction and weld joints, welding slag and easiness of corrosion at a connection part. The metallic paint comprises the materials in percentage by weight: 30-90% of a solid component and 10-70% of a liquid component; according to percentage by weight, the solid component comprises 60-80% of iron oxide yellow, 3-15% of high aluminum powder, 2-7% of iron oxide red, 2-7% of electrostatic precipitator fly ash, 2-7% of electrostatic precipitator, and 2-4% of sodium fluosilicate, and the liquid component comprises 70-90% of neutral water glass and 10-30% of water; the anode conductive material comprises a conductive rod and at least one steel paw, wherein the at least one steel paw is connected to the front end of the conductive rod through friction welding or fusion welding; the conductive rod or/and the steel paw is/are formed by alloy materials through casting; a metal painting formed by the anti-corrosion metallic paint is painted on the conductive rod or/and the steel paw; the anti-corrosion metallic paint used in the aluminum electrolysis field, and the anode conductive device have the advantages of preferable conductivity, easiness of corrosion, no weld joint, no welding slag, and the like.
Description
Technical field
The present invention relates to a kind of non-corrosive metal (NCM) coating and anode conducting device, relate in particular to a kind of non-corrosive metal (NCM) coating and anode conducting device for field of aluminum electrolysis.
Background technology
The anode conducting device using in aluminium cell electrolysis industry at present mainly contains by aluminium guide bar, steel-aluminium composite block, anode steel jaw and is formed, and between three, is connected and fixed the welding of main employing metal argon arc welding (MIG) welding technique: in the lower end of aluminium guide bar or the aluminium planar section of front transverse plane and steel-aluminium composite block employing aluminium-aluminium circumferential weld be connected; On the steel surface of steel-aluminium composite block, part adopts steel-steel loop shape welding technology to be connected with the upper planar section of anode steel jaw gooseneck.Adopt the anode conducting device of above welding technique in industrial application process, mainly to have following problem: the material that (1) anode steel jaw generally adopts mostly is ZG200-400 or ZG230-450 material, the resistivity of such material is higher, more than reaching 50mV by the caused volts lost of anode steel jaw in actual use; (2) in MIG welding process, impact due to factors such as welding technique, can cause commissure to have the defects such as pore, weld seam slag inclusion, incomplete fusion, lack of penetration and backing welding cracking, these defects will cause that weld strength is poor, ohmic resistance is higher, cause anode conducting device pressure drop in use higher, the volts lost that the upper and lower twice weld seam of its steel-aluminium composite block of evidence causes is generally at 5-8mV.
Therefore, today to energy-saving and cost-reducing pay attention to day by day in society and enterprise, how to find a kind of novel high conductive anode device, can reduce anode conducting device volts lost in use, can eliminate again because the volts lost that problems of welded quality causes, realize the object that reduces ton aluminium power consumption, just seem and be extremely necessary.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, adapt to reality needs, a kind of non-corrosive metal (NCM) coating and anode conducting device for field of aluminum electrolysis is provided, is intended to solve that current anode conducting device exists that pressure drop is excessive, junction exists weld seam, welding slag, corrosion-prone technical problem.
In order to realize object of the present invention, the technical solution adopted in the present invention is:
Design a kind of non-corrosive metal (NCM) coating for field of aluminum electrolysis, described metallic paint is by admittedly expecting that component and liquid material component form by the weight ratio of 30～90%:10～70%; By weight percentage, describedly admittedly expect that component contains: iron oxide yellow 60～80%, high-alumina fly 3～15%, red iron oxide 2～7%, electric precipitation flyash 2～7%, calcium carbonate 2～7%, Sodium Silicofluoride 2～4%, described liquid material component contains: neutral water glass 70～90%, water 10～30%.
The present invention also designs a kind of anode conducting device for field of aluminum electrolysis, comprise conducting rod, at least one steel pawl, described steel pawl is connected in the front end of described conducting rod through friction welding or melting welding, described conducting rod or/and steel pawl by alloy material casting, made, on described conducting rod, or/and be coated with metallic coating on steel pawl, described metallic coating is made by aforementioned non-corrosive metal (NCM) coating.
Described metallic coating is sprayed on described conducting rod or/and the surface of steel pawl via hot-spraying techniques.
The thickness of described metallic coating is 0.01～20mm.
The resistivity of described alloy material is 8 * 10
-8Ω/m～15 * 10
-8between Ω/m.
The size range of described conducting rod is: the right cylinder of diameter 130mm～200mm, high 2000mm～2500mm.
The length range of described steel pawl is 1100mm～1300mm.
Described steel pawl is right cylinder or rectangular parallelepiped.
Beneficial effect of the present invention is:
Metal argon arc welding (MIG) welding that the Friction welding technique adopting in the present invention or welding technology are used from current anode conducting device is different, its advantage is to adopt welding technique of the present invention or the conductivity of welding technology in its weld seam junction to significantly improve, in actual use and experimental results show that and adopt more than the more current anode conducting device total pressure drop of anode conducting device of the present invention reduces 25mv, more than wherein high conductive steel pawl pressure drop reduces 20mv; More than under conducting rod, on transverse plane and steel pawl crossbeam, between transverse plane, pressure drop reduces 5mv.On conducting rod in the present invention, or/and the surface spraying on steel pawl has the metallic coating that 0.01～20mm is thick, can effectively slow down and stop ionogen to the erosion of this anode conducting device and high temperature oxidation and corrosion, can extend the work-ing life of steel pawl and conducting rod.
Material used in the present invention is high conductive aluminum electric tank cathode current conducting rod material, and alloy steel material, is used the advantage of this material to be that the resistivity of this anode conducting device reduces greatly, and its resistivity is 8 * 10
-8～13 * 10
-8Ω/m
3between, can effectively reduce power consumption, compared with the prior art, structure by innovative design anode conducting device, adopt novel weldprocedure and equipment welding of aluminum/steel alloy conducting rod, select the anode steel jaw of high conductive material steel alloy manufacture, can significantly improve the conductivity of anode conducting device.Experimental results show that: compare with existing anode conducting device, the present invention uses under identical working condition, more than its volts lost is reduced in 27mV; In later maintenance process, use friction-welding technique or melting welding weldprocedure, do not need to buy steel-aluminium composite sheet and wlding, can reduce labour intensity, save manpower and cost simultaneously.In addition, this technology is extremely conducive to aluminium electrolysis enterprise and reduces production and maintenance cost, improves economic benefit and the enterprise competitiveness of enterprise.
The present invention is the energy loss that reduces anode conducting device, reduces a ton aluminium power consumption, realizes the energy-saving and cost-reducing a kind of feasible program of electrolytic aluminum.Simultaneously the present invention can effectively solve existing anode conducting device later maintenance manpower and materials drop into more, because of the problem that welding quality causes electric installation pressure drop to increase, be extremely conducive to energy-saving and emission-reduction and the cost efficiency of aluminium electrolysis enterprise.
Accompanying drawing explanation
Fig. 1 is anode conducting device schematic diagram of the present invention;
In figure: 1. conducting rod; 2. steel pawl.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
Embodiment: a kind of non-corrosive metal (NCM) coating for field of aluminum electrolysis, described metallic paint is by admittedly expecting that component and liquid material component form by the weight ratio of 30～90%:10～70%; By weight percentage, describedly admittedly expect that component contains: iron oxide yellow 60～80%, high-alumina fly 3～15%, red iron oxide 2～7%, electric precipitation flyash 2～7%, calcium carbonate 2～7%, Sodium Silicofluoride 2～4%; Described liquid material component contains: neutral water glass 70～90%, water 10～30%.
The present invention also designs a kind of anode conducting device for field of aluminum electrolysis, referring to Fig. 1, comprise conducting rod, at least one steel pawl, described steel pawl is connected in the front end of described conducting rod through friction welding or melting welding, described conducting rod or/and steel pawl by alloy material casting, made, on described conducting rod, or/and be coated with metallic coating on steel pawl, described metallic coating is made by aforementioned non-corrosive metal (NCM) coating.
Described metallic coating is sprayed on described conducting rod or/and the surface of steel pawl via hot-spraying techniques.
The thickness of described metallic coating is 0.01～20mm.
The resistivity of described alloy material is 8 * 10
-8Ω/m～15 * 10
-8between Ω/m.
The size range of described conducting rod is: the right cylinder of diameter 130mm～200mm, high 2000mm～2500mm.
The length range of described steel pawl is 1100mm～1300mm.
Described steel pawl is right cylinder or rectangular parallelepiped.
What embodiments of the invention were announced is preferred embodiment, but is not limited to this, those of ordinary skill in the art; very easily, according to above-described embodiment, understand spirit of the present invention, and make different amplifications and variation; but only otherwise depart from spirit of the present invention, all in protection scope of the present invention.
Claims (8)
1. for a non-corrosive metal (NCM) coating for field of aluminum electrolysis, it is characterized in that: described metallic paint is by admittedly expecting that component and liquid material component form by the weight ratio of 30～90%:10～70%; By weight percentage, describedly admittedly expect that component contains iron oxide yellow 60～80%, high-alumina fly 3～15%, red iron oxide 2～7%, electric precipitation flyash 2～7%, calcium carbonate 2～7%, Sodium Silicofluoride 2～4%, described liquid material component is containing neutral water glass 70～90%, water 10～30%.
2. the anode conducting device for field of aluminum electrolysis, comprise conducting rod, at least one steel pawl, it is characterized in that: described steel pawl is connected in the front end of described conducting rod through friction welding or melting welding, described conducting rod or/and steel pawl by alloy material casting, made, on described conducting rod, or/and be coated with metallic coating on steel pawl, described metallic coating is made by non-corrosive metal (NCM) coating described in claim 1.
3. the anode conducting device for aluminium cell as claimed in claim 2, is characterized in that: described metallic coating is sprayed on described conducting rod or/and the surface of steel pawl via hot-spraying techniques.
4. the anode conducting device for aluminium cell as claimed in claim 2, is characterized in that: the thickness of described metallic coating is 0.01～20mm.
5. the anode conducting device for aluminium cell as claimed in claim 2, is characterized in that: the resistivity of described alloy material is 8 * 10
-8Ω/m～15 * 10
-8between Ω/m.
6. the anode conducting device for aluminium cell as claimed in claim 2, is characterized in that: the size range of described conducting rod is: the right cylinder of diameter 130mm～200mm, high 2000mm～2500mm.
7. the anode conducting device for aluminium cell as claimed in claim 2, is characterized in that: the length range of described steel pawl is 1100mm～1300mm.
8. the anode conducting device for aluminium cell as claimed in claim 2, is characterized in that: described steel pawl is right cylinder or rectangular parallelepiped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310694394.0A CN103643261A (en) | 2013-12-18 | 2013-12-18 | Anti-corrosion metallic paint used in aluminum electrolysis field, and anode conductive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310694394.0A CN103643261A (en) | 2013-12-18 | 2013-12-18 | Anti-corrosion metallic paint used in aluminum electrolysis field, and anode conductive device |
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| Publication Number | Publication Date |
|---|---|
| CN103643261A true CN103643261A (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310694394.0A Pending CN103643261A (en) | 2013-12-18 | 2013-12-18 | Anti-corrosion metallic paint used in aluminum electrolysis field, and anode conductive device |
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|---|---|
| CN (1) | CN103643261A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194421A (en) * | 2014-07-29 | 2014-12-10 | 嘉善美节陶瓷科技有限公司 | Impregnated protective material for magnesium electrolytic carbon electrode and application method thereof |
| CN104498998A (en) * | 2014-12-06 | 2015-04-08 | 中国铝业股份有限公司 | Protecting method of electrode guide rod for insulating corrosion of electrolyte atmosphere |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159467A (en) * | 1996-12-09 | 1997-09-17 | 万启洪 | High-temp.-resistant corrosion-resistant coating capable of being substituted for paint |
| CN101787550A (en) * | 2010-03-30 | 2010-07-28 | 云南铝业股份有限公司 | Connecting structure of aluminum electrolytic prebaked anode guide bar and steel jaw and preparation method thereof |
| CN102400180A (en) * | 2011-11-22 | 2012-04-04 | 中国铝业股份有限公司 | Method for connecting anode guide rod and anode steel claw |
-
2013
- 2013-12-18 CN CN201310694394.0A patent/CN103643261A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159467A (en) * | 1996-12-09 | 1997-09-17 | 万启洪 | High-temp.-resistant corrosion-resistant coating capable of being substituted for paint |
| CN101787550A (en) * | 2010-03-30 | 2010-07-28 | 云南铝业股份有限公司 | Connecting structure of aluminum electrolytic prebaked anode guide bar and steel jaw and preparation method thereof |
| CN102400180A (en) * | 2011-11-22 | 2012-04-04 | 中国铝业股份有限公司 | Method for connecting anode guide rod and anode steel claw |
Non-Patent Citations (3)
| Title |
|---|
| 张报清: "预焙槽阳极组节能降耗研究进展", 《矿冶》 * |
| 张红安: "《工作条件对钢铝导电杆组织及性能的影响》", 《特种铸造及有色冶金》 * |
| 高子忠: "《轻金属冶金学》", 31 October 1993, 冶金工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194421A (en) * | 2014-07-29 | 2014-12-10 | 嘉善美节陶瓷科技有限公司 | Impregnated protective material for magnesium electrolytic carbon electrode and application method thereof |
| CN104194421B (en) * | 2014-07-29 | 2016-07-06 | 嘉善美节陶瓷科技有限公司 | A kind of magnesium eletrolysis carbon pole protects material and application process thereof with immersion-type |
| CN104498998A (en) * | 2014-12-06 | 2015-04-08 | 中国铝业股份有限公司 | Protecting method of electrode guide rod for insulating corrosion of electrolyte atmosphere |
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Application publication date: 20140319 |
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