CN103540888A - Aluminum electrolysis cell cathode inner liner oxidation resistance technology - Google Patents
Aluminum electrolysis cell cathode inner liner oxidation resistance technology Download PDFInfo
- Publication number
- CN103540888A CN103540888A CN201310474825.2A CN201310474825A CN103540888A CN 103540888 A CN103540888 A CN 103540888A CN 201310474825 A CN201310474825 A CN 201310474825A CN 103540888 A CN103540888 A CN 103540888A
- Authority
- CN
- China
- Prior art keywords
- cell cathode
- inner lining
- aluminium
- aluminum
- cathode inner
- 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.)
- Pending
Links
Images
Abstract
The invention relates to an oxidation resistance technology and especially relates to an aluminum electrolysis cell cathode inner liner oxidation resistance technology. The aluminum electrolysis cell cathode inner liner comprises an aluminum electrolysis cell cathode carbon block upper-surface, an aluminum electrolysis cell cathode ramming paste surface and an aluminum electrolysis cell cathode side-block. At least one oxidation resistant layer is arranged on each one of the aluminum electrolysis cell cathode carbon block upper-surface, the aluminum electrolysis cell cathode ramming paste surface and the aluminum electrolysis cell cathode side-block. The aluminum electrolysis cell cathode inner liner oxidation resistance technology solves the problem that the aluminum electrolysis cell cathode inner liner is oxidized at a high temperature, improves an electrolysis cell service life and can be realized easily.
Description
Technical field
The present invention relates to a kind of anti-oxidation technique, particularly the anti-oxidation technique of a kind of aluminum cell cathode inner lining.
Background technology
In electrolysis of aluminum enterprise, the electrolyzer after newly-built electrolyzer or overhaul must first carry out roasting before coming into operation, and the object of roasting is to dry between body of heater, sintered cathode charcoal piece and the solid paste of limit portion bundle, improves anode and cathode temperature, is beneficial to next step startup.The selection of roasting method is especially most important to the life-span of large scale electrolytic cell to electrolyzer, and existing method for roasting aluminum electrolytic bath is roughly divided into 3 kinds: aluminium liquid preheating and baking, resistance preheat roasting (being often referred to baking coke particles and graphite sinter) and gas-preheating roasting.In Aluminium Electrolysis, substantially adopt the first two kind method at home, still, molten aluminum roasting thermal shocking is strong, and the time is long, and expense is high; And baking coke particles thermograde is large, there is the problem of local superheating or underburnt.Gas roasting method is the rate of heating of control cathode effectively, and heating surface is even, and along with the wideling popularize of aluminium cell specially-shaped cathode, conventional baking coke particles has been not suitable for the roasting and starting of special-shaped cathode electrolytic cell.In recent years, gas roasting method is started to adopt by aluminium electrolysis enterprise, but due in heat-processed, heat-up time, long, temperature was up to 900 ℃, after being heated, cathode carbon pieces is easily oxidized, cause cathode carbon pieces aliquation, fall piece, the phenomenon such as profiled cathode carbon block boss comes off, had a strong impact on work-ing life of cathode inner lining, restricted the popularization on a large scale of gas roasting method.
An application for the anti-oxidation technique of aluminum cell cathode inner lining, has solved aluminum cell cathode inner lining and has at high temperature been oxidized, and has improved cell life, and easily realizes.
Summary of the invention
At high temperature there is problem of oxidation in order to solve aluminum cell cathode inner lining in the present invention, concrete scheme is as follows:
The anti-oxidation technique of a kind of aluminum cell cathode inner lining, aluminum cell cathode inner lining comprises aluminium electrolysis cell cathode carbon block upper surface, solid surface, the aluminium electrolytic cell cathode lateral mass stuck with paste of aluminium electrolytic cell cathode bundle, it is characterized in that, at aluminium electrolysis cell cathode carbon block upper surface, aluminium electrolytic cell cathode, prick paste surface, aluminium electrolytic cell cathode lateral mass admittedly and process at least one deck antioxidation coating.
Described antioxidation coating is fine aluminium, aluminum oxide powder, alumina solution or antioxidant coating.
Described is processed as at aluminium electrolysis cell cathode carbon block upper surface, solid surface, aluminium electrolytic cell cathode lateral mass brushing one deck alumina solution or the antioxidant coating stuck with paste of aluminium electrolytic cell cathode bundle, after brushing finishes, and seasoning, the seasoning time is 1～3 day; Or at aluminum cell cathode inner lining surface bonding one deck aluminum oxide powder, described caking agent is polyvinyl alcohol solution by caking agent.
The described electric arc spraying mode that is processed as, fine aluminium is processed into aluminium wire, aluminium wire is arranged in spray gun, switch on power, the thermal source that aluminium wire produces through power positive cathode is by its fusing or semi-molten, by high-pressure blast effect, spray and be adsorbed on aluminum cell cathode inner lining surface, before arriving the cathode inner lining surface being sprayed, its flight time only has several signas or still less, within the so short time, it is heated, fusing or semi-molten, form thin small and scattered molten drop, rush at cathode inner lining surface, hit into flat stacked small pieces, flat that had previously generated is covered by late comer again, form soon by the folded tectum forming of a lot of flat sieve, be antioxidation coating, between spray gun and aluminum cell cathode inner lining surface, spacing is 50～400mm.
Described alumina solution is by aluminum oxide powder, Vinyl Acetate Copolymer, water, by the volume ratio of 1:2 ~ 5:3 ~ 6, is mixed into aluminum oxide liquid.
Described antioxidant coating is to be by weight percentage borax or boric acid 30 ~ 45%, industrial phosphoric acid 30 ~ 40%, Tai-Ace S 150 0 ~ 5.5%, kaolin 8 ~ 18%, water 10 ~ 20%.
Described antioxidation coating thickness is 0.2 ~ 5mm.
beneficial effect
1. solved aluminum cell cathode inner lining and be at high temperature oxidized, improved cell life, and easily realized;
2. no matter adopt spraying to also have bonding mode, caking agent and fine aluminium on electrolysis production without impact;
3. without purchasing main equipment, cost drops into low;
4. pollution-free;
5. efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, 1 is aluminium electrolytic cell cathode lateral mass, and 2 prick the solid surface of sticking with paste for aluminium electrolytic cell cathode, and 3 is that aluminium electrolysis cell cathode carbon block upper surface, 4 is antioxidation coating.
Embodiment
Embodiment 1
The anti-oxidation technique of a kind of aluminum cell cathode inner lining, aluminum cell cathode inner lining comprises aluminium electrolysis cell cathode carbon block upper surface 3, solid surface 2, the aluminium electrolytic cell cathode lateral mass 1 stuck with paste of aluminium electrolytic cell cathode bundle, at aluminium electrolysis cell cathode carbon block upper surface 3, aluminium electrolytic cell cathode, pricks and admittedly sticks with paste surface 2, aluminium electrolytic cell cathode lateral mass 1 processing one deck antioxidation coating;
Antioxidation coating is fine aluminium;
Processing mode is electric arc spraying mode, fine aluminium is processed into aluminium wire, aluminium wire is arranged in spray gun, switch on power, the thermal source that aluminium wire produces through power positive cathode is by its fusing or semi-molten, by high-pressure blast effect, spray and be adsorbed on aluminum cell cathode inner lining surface, before arriving the cathode inner lining surface being sprayed, its flight time only has several signas or still less, within the so short time, it is heated, fusing or semi-molten, form thin small and scattered molten drop, rush at cathode inner lining surface, hit into flat stacked small pieces, flat that had previously generated is covered by late comer again, form soon by the folded tectum forming of a lot of flat sieve, be antioxidation coating, between spray gun and aluminum cell cathode inner lining surface, spacing is 50～400mm,
Described antioxidation coating thickness is 0.2 ~ 5mm.
The position of antioxidation coating is with embodiment 1, and difference is:
Antioxidation coating is aluminum oxide powder;
Processing mode be by caking agent at aluminum cell cathode inner lining surface bonding one deck aluminum oxide powder, described caking agent is polyvinyl alcohol;
Described antioxidation coating thickness is 0.2 ~ 5mm.
The position of antioxidation coating is with embodiment 1, and difference is: antioxidation coating is alumina solution;
Be processed as with brush and brush one deck alumina solution, after brushing finishes, seasoning, the seasoning time is 1～3 day;
Described alumina solution is by aluminum oxide powder, Vinyl Acetate Copolymer, water, by the volume ratio of 1:2 ~ 5:3 ~ 6, is mixed into aluminum oxide liquid;
Described antioxidation coating thickness is 0.2 ~ 5mm.
Embodiment 4
The position of antioxidation coating is with embodiment 1, and difference is: antioxidation coating is antioxidant coating;
Described antioxidant coating is, by weight percentage, and borax 30%, industrial phosphoric acid 32%, kaolin 18%, water 20%;
Be processed as with brush brush one deck antioxidant coating, after brushing finishes, seasoning, the seasoning time is 1～3 day;
Described antioxidation coating thickness is 0.2 ~ 5mm.
Embodiment 5
Embodiment 5 is substantially the same manner as Example 4, and difference is,
Described antioxidant coating is, by weight percentage, and boric acid 39%, industrial phosphoric acid 40%, Tai-Ace S 150 3%, kaolin 8%, water 10%.
Embodiment 6
Embodiment 6 is substantially the same manner as Example 4, and difference is,
Described antioxidant coating is boric acid 34%, industrial phosphoric acid 35%, Tai-Ace S 150 5.5%, kaolin 10.5%, water 15%.
Claims (7)
1. the anti-oxidation technique of aluminum cell cathode inner lining, aluminum cell cathode inner lining comprises aluminium electrolysis cell cathode carbon block upper surface, solid surface, the aluminium electrolytic cell cathode lateral mass stuck with paste of aluminium electrolytic cell cathode bundle, it is characterized in that, at aluminium electrolysis cell cathode carbon block upper surface, aluminium electrolytic cell cathode, prick paste surface, aluminium electrolytic cell cathode lateral mass admittedly and process at least one deck antioxidation coating.
2. the anti-oxidation technique of a kind of aluminum cell cathode inner lining according to claim 1, is characterized in that, described antioxidation coating is fine aluminium, aluminum oxide powder, alumina solution or antioxidant coating.
3. the anti-oxidation technique of a kind of aluminum cell cathode inner lining according to claim 1, it is characterized in that, solid surface, aluminium electrolytic cell cathode lateral mass brushing one deck alumina solution or the antioxidant coating stuck with paste pricked in described being processed as at aluminium electrolysis cell cathode carbon block upper surface, aluminium electrolytic cell cathode, after brushing finishes, seasoning, the seasoning time is 1～3 day; Or at aluminum cell cathode inner lining surface bonding one deck aluminum oxide powder, described caking agent is polyvinyl alcohol solution by caking agent.
4. the anti-oxidation technique of a kind of aluminum cell cathode inner lining according to claim 1, it is characterized in that, the described electric arc spraying mode that is processed as, fine aluminium is processed into aluminium wire, aluminium wire is arranged in spray gun, switch on power, the thermal source that aluminium wire produces through power positive cathode is by its fusing or semi-molten, by high-pressure blast effect, spray and be adsorbed on aluminum cell cathode inner lining surface, before arriving the cathode inner lining surface being sprayed, its flight time only has several signas or still less, within the so short time, it is heated, fusing or semi-molten, form thin small and scattered molten drop, rush at cathode inner lining surface, hit into flat stacked small pieces, flat that had previously generated is covered by late comer again, form soon by the folded tectum forming of a lot of flat sieve, be antioxidation coating, between spray gun and aluminum cell cathode inner lining surface, spacing is 50～400mm.
5. the anti-oxidation technique of a kind of aluminum cell cathode inner lining according to claim 2, is characterized in that, described alumina solution is by aluminum oxide powder, Vinyl Acetate Copolymer, water, by the volume ratio of 1:2 ~ 5:3 ~ 6, is mixed into aluminum oxide liquid.
6. the anti-oxidation technique of a kind of aluminum cell cathode inner lining according to claim 2, is characterized in that, described antioxidant coating is by weight percentage, borax or boric acid 30 ~ 45%, industrial phosphoric acid 30 ~ 40%, Tai-Ace S 150 0 ~ 5.5%, kaolin 8 ~ 18%, water 10 ~ 20%.
7. the anti-oxidation technique of a kind of aluminum cell cathode inner lining according to claim 1, is characterized in that, described antioxidation coating thickness is 0.2 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474825.2A CN103540888A (en) | 2013-10-12 | 2013-10-12 | Aluminum electrolysis cell cathode inner liner oxidation resistance technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474825.2A CN103540888A (en) | 2013-10-12 | 2013-10-12 | Aluminum electrolysis cell cathode inner liner oxidation resistance technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103540888A true CN103540888A (en) | 2014-01-29 |
Family
ID=49964729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310474825.2A Pending CN103540888A (en) | 2013-10-12 | 2013-10-12 | Aluminum electrolysis cell cathode inner liner oxidation resistance technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103540888A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108517548A (en) * | 2018-04-04 | 2018-09-11 | 浙江工业大学 | A kind of sial composite coating and its preparation process |
| CN110129830A (en) * | 2019-05-17 | 2019-08-16 | 中国铝业股份有限公司 | A kind of cathode carbon material and preparation method thereof for lithium in deintercalation richness lithium electrolyte |
| CN110777397A (en) * | 2019-12-11 | 2020-02-11 | 洛阳轻冶科技有限公司 | Uninterrupted repair process for electrified aluminum bus of electrolytic cell in high-intensity magnetic field |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307467A (en) * | 2008-06-24 | 2008-11-19 | 中国铝业股份有限公司 | Method for improving anti-oxidation property of charcoal anodic for aluminium |
| CN102424730A (en) * | 2011-08-29 | 2012-04-25 | 翟相文 | Anti-oxidizing paint for electrolytic aluminum anode carbon blocks and preparation method thereof |
| CN102978660A (en) * | 2012-12-14 | 2013-03-20 | 郑州经纬科技实业有限公司 | Aluminium electrolysis cell with insulation structure |
-
2013
- 2013-10-12 CN CN201310474825.2A patent/CN103540888A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307467A (en) * | 2008-06-24 | 2008-11-19 | 中国铝业股份有限公司 | Method for improving anti-oxidation property of charcoal anodic for aluminium |
| CN102424730A (en) * | 2011-08-29 | 2012-04-25 | 翟相文 | Anti-oxidizing paint for electrolytic aluminum anode carbon blocks and preparation method thereof |
| CN102978660A (en) * | 2012-12-14 | 2013-03-20 | 郑州经纬科技实业有限公司 | Aluminium electrolysis cell with insulation structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108517548A (en) * | 2018-04-04 | 2018-09-11 | 浙江工业大学 | A kind of sial composite coating and its preparation process |
| CN110129830A (en) * | 2019-05-17 | 2019-08-16 | 中国铝业股份有限公司 | A kind of cathode carbon material and preparation method thereof for lithium in deintercalation richness lithium electrolyte |
| CN110777397A (en) * | 2019-12-11 | 2020-02-11 | 洛阳轻冶科技有限公司 | Uninterrupted repair process for electrified aluminum bus of electrolytic cell in high-intensity magnetic field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102409363B (en) | Method for preparing titanium with fused salt electrolysis process | |
| CN102294485B (en) | Composite electric contact material and preparation method thereof | |
| CN103691329B (en) | A kind of preparation method of porous stainless steel membrane | |
| CN101830731B (en) | Method for preparing carbon material surface ceramic coat | |
| WO2008081851A1 (en) | Carbon composite materials and process for production thereof | |
| CN103183973B (en) | Anti-oxidative and corrosion-resistant coating of electrolytic aluminum pre-baked anode steel claw and preparation method thereof | |
| CN103540888A (en) | Aluminum electrolysis cell cathode inner liner oxidation resistance technology | |
| CN105458431A (en) | Brazing preparing method for titanium copper sheathing composite bar | |
| CN104384518A (en) | Method for coating copper on surface of tungsten copper carbide alloy composite material | |
| CN103266318A (en) | One-step reinforcement processing method of laser cladding laminated coating based on melting point difference | |
| CN113444996A (en) | Preparation method of thermal barrier coating, thermal barrier coating and engine piston | |
| CN103882471A (en) | Anode material for fluorine production and preparation method of anode material | |
| CN102373488A (en) | Method for reducing cathode drop of aluminium cell | |
| CN104561625A (en) | Method for preparing copper-tungsten composite with high electric erosive resistance by virtue of microwave sintering | |
| CN204491005U (en) | Electrolytic aluminum cathode collector bar | |
| CN105506534A (en) | Preparation process for corrosion-resistant aluminum coating with conductive performance on magnesium alloy surface | |
| CN102294358B (en) | Pressure continuous-casting rolling process for sectional material of copper-clad aluminium bar | |
| CN102953086B (en) | Low-resistance structure drops in anode block group | |
| CN111424229A (en) | Preparation method of composite coating resistant to liquid metal alloy erosion | |
| CN104988354B (en) | Preparation method and its spraying coating process of a kind of thin film capacitor with metal spraying silk | |
| CN102717551A (en) | Novel metal compounding process | |
| CN103014634A (en) | Method for preparing beryllium-copper alloy sheet by adopting continuous multi-arc ion plating physical vapour deposition | |
| CN101831565A (en) | New process for preparing niobium-zirconium 10 alloy | |
| CN102560562A (en) | Manufacturing method and application method of nickel-based intermetallic compound inert anode | |
| CN202730257U (en) | Preheat starting device of inert electrode aluminum electrolysis cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140129 |
|
| RJ01 | Rejection of invention patent application after publication |