CN106498443B - Carbon anode heat-preserving cover plate and preparation method thereof and application method - Google Patents
Carbon anode heat-preserving cover plate and preparation method thereof and application method Download PDFInfo
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- CN106498443B CN106498443B CN201610904023.4A CN201610904023A CN106498443B CN 106498443 B CN106498443 B CN 106498443B CN 201610904023 A CN201610904023 A CN 201610904023A CN 106498443 B CN106498443 B CN 106498443B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
Abstract
It is a kind of carbon anode heat-preserving cover plate and preparation method thereof and application method, the carbon anode heat-preserving cover plate, raw material include waterglass, the powder containing metallic aluminium and aluminium oxide, auxiliary agent and water the present invention relates to carbon anode insulation construction technical field.When needing replacing anode, after dismantling carbon anode heat-preserving cover plate of the present invention corresponding with the anode scrap needed replacing, anode scrap can be proposed electrolytic cell, then new carbon anode is put into electrolytic cell, finally the carbon anode heat-preserving cover plate of the present invention removed is resetted, known to through the above steps, after being kept the temperature to carbon anode using carbon anode heat-preserving cover plate of the present invention, reduce thermal losses, the process for replacing carbon anode can be simplified, relative to the existing process for replacing carbon anode, it eliminates and takes off material, crust breaking, drag for block, the processes such as lid material and cleaning anode scrap, substantially reduce the change poles time, and reduce the workload of change poles, improve current efficiency, significantly reduce the production cost of enterprise.
Description
Technical field
The present invention relates to carbon anode insulation construction technical field, it is a kind of carbon anode heat-preserving cover plate and preparation method thereof and makes
Use method.
Background technology
With the fast development of China's aluminum electrolysis industry, electrolytic cell per unit area yield scale is increasing, and doing carbon anode with aluminium oxide covers
The demand for covering material is increasing, when mulch of the aluminium oxide as carbon anode, since aluminium oxide is bulk cargo, when electrolytic cell process
After a period of time use, aluminium oxide does mulch and is easy to crust, when reusing, it is necessary to chat crust and crush, to increase
The labor intensity of worker.Work as anode（Carbon anode）It works in a cell to some cycles（Usually 30 days to 40 days）,
Anode is needed replacing, i.e., anode scrap is put forward, a new pole is changed and enters.Electrolytic aluminium anode is referred to as the heart of Aluminum Electrolysis Production
Dirty, it directly affects the indices of Aluminum Electrolysis Production.Anode change is a main and labour during Aluminum Electrolysis Production
One work of intensity maximum.It includes taking off material, crust breaking, proposing anode scrap, drag for block, fill the processes such as new pole, lid material, cleaning anode scrap.
Since working environment is 950 DEG C or so, electrolyte exposes in air, and heat dissipation capacity is very big, flue gas in electrolytic cell（Contain
F flue gases）It is emitted into working environment, causes the working environment of workers severe, and replacement anode working amount is larger, each anode change
Last 30 minutes or so；Secondly as what is covered on carbon anode is aluminium oxide bulk cargo, and during proposing anode scrap, a large amount of aluminium oxide
Block（Crust）It is fallen into electrolytic cell with bulk cargo, is generally pulled out by the grab bucket of artificial or multifunction crane, during pulling out, made
The aluminum water and electrolyte of electrolytic cell bottom seriously stir, and are significantly influenced on electrolysis production current efficiency, and take electrolyte out of；
In addition, lid virgin material（Aluminium oxide bulk cargo）When, it will also bring alumina material into and enter electrolytic cell, bottom of electrolytic tank generates a large amount of precipitations,
Seriously affect electrolysis production.
Invention content
The present invention provides a kind of carbon anode heat-preserving cover plate and preparation method thereof and application methods, overcome above-mentioned existing skill
The deficiency of art, can effectively solve it is existing using aluminium oxide bulk cargo as carbon anode mulch when, exist replace carbon anode process
Cumbersome problem.
One of technical scheme of the present invention is realized by following measures：A kind of carbon anode heat-preserving cover plate, raw material are pressed
Parts by weight meter include 30 parts to 60 parts of waterglass, 8 parts of 60 parts to 100 parts of powder, the auxiliary agent containing metallic aluminium and aluminium oxide extremely
10 parts and 25 parts to 30 parts of water, carbon anode heat-preserving cover plate obtains as follows：The first step, by the desired amount of waterglass, required
Slurry is made in the powder containing metallic aluminium and aluminium oxide of amount and the stirring of the desired amount of water, is added while agitating the desired amount of
Auxiliary agent, the slurry that auxiliary agent is added pass through foaming and hardening in 10 minutes to 15 minutes；Second step, by the material by foaming and hardening
Slurry demoulds after being put into the pre-hardening hardening of progress in mold, and profiled sheeting is obtained after demoulding, profiled sheeting is obtained carbon anode after maintenance
Heat-preserving cover plate, wherein the time of initial set hardening is 30 minutes to 40 minutes.
Here is the further optimization and/or improvements to one of foregoing invention technical solution：
The above-mentioned powder containing metallic aluminium and aluminium oxide is combination or the metallic aluminium ash of metallic aluminium powder and alumina powder, when containing
When to have the powder of metallic aluminium and aluminium oxide be the combination of metallic aluminium powder and alumina powder, 50 parts to 70 of the parts by weight of metallic aluminium powder
Part, the parts by weight of alumina powder be 10 parts to 30 parts.
Above-mentioned auxiliary agent is combination or the coagulant of foaming agent and curing agent, when the combination that auxiliary agent is foaming agent and curing agent
When, the parts by weight of foaming agent are 1 part to 2 parts, and curing agent is 7 parts to 8 parts.
In above-mentioned second step, maintenance method is watering or spray watering.
Technical scheme of the present invention second is that being realized by following measures：A kind of carbon sun described in one of technical solution
The production method of pole heat-preserving cover plate, it includes 30 parts to 60 parts of waterglass that raw material is counted in parts by weight, contains metallic aluminium and aluminium oxide
25 parts to 30 parts of 60 parts to 100 parts of powder, 8 parts to 10 parts of auxiliary agent and water, the production method of the carbon anode heat-preserving cover plate
It carries out as follows：The first step, by the desired amount of waterglass, the desired amount of powder containing metallic aluminium and aluminium oxide and required
Slurry is made in the water stirring of amount, and the desired amount of auxiliary agent is added while agitating, and the slurry that auxiliary agent is added passes through 10 minutes to 15
The foaming and hardening of minute；Second step will be demoulded after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold, be taken off
Profiled sheeting is obtained after mould, profiled sheeting is obtained to carbon anode heat-preserving cover plate after maintenance, wherein the time of initial set hardening is 30 points
Clock was to 40 minutes.
Here is two further optimization and/or improvements to foregoing invention technical solution：
The above-mentioned powder containing metallic aluminium and aluminium oxide is combination or the metallic aluminium ash of metallic aluminium powder and alumina powder, when containing
When to have the powder of metallic aluminium and aluminium oxide be the combination of metallic aluminium powder and alumina powder, 50 parts to 70 of the parts by weight of metallic aluminium powder
Part, the parts by weight of alumina powder be 10 parts to 30 parts.
Above-mentioned auxiliary agent is combination or the coagulant of foaming agent and curing agent, when the combination that auxiliary agent is foaming agent and curing agent
When, the parts by weight of foaming agent are 1 part to 2 parts, and curing agent is 7 parts to 8 parts.
In above-mentioned second step, maintenance method is watering or spray watering.
The three of technical scheme of the present invention are realized by following measures：A kind of carbon sun described in one of technical solution
The application method of pole heat-preserving cover plate carries out as follows：The carbon anode heat-preserving cover plate is mounted on carbon anode and is hidden
The outer edge of lid carbon anode, carbon anode heat-preserving cover plate rides on the pot shell of electrolytic cell.
Carbon anode heat-preserving cover plate of the present invention has high temperature resistant and corrosion resistant performance, is resistant to 1000 DEG C to 1500
DEG C high temperature, so that carbon anode heat-preserving cover plate of the present invention is can be applied in the hot environment of electrolytic aluminium；It is of the present invention
Carbon anode heat-preserving cover plate can substitute aluminium oxide mulch, i.e., through the invention the carbon anode heat-preserving cover plate to carbon anode
It is kept the temperature, meanwhile, after carbon anode heat-preserving cover plate of the present invention is mounted on carbon anode, the cigarette in electrolytic cell can be avoided
Gas leaks, the pollution so as to avoid flue gas to working environment, while avoiding flue gas caused by staff's health
It threatens；In addition, when needing replacing anode, protected by dismantling carbon anode of the present invention corresponding with the anode scrap needed replacing
After warm cover board, you can anode scrap is proposed into electrolytic cell, then new carbon anode is put into electrolytic cell, the present invention that will finally remove
The carbon anode heat-preserving cover plate resets, by the step of above-mentioned replacement carbon anode it is found that using carbon of the present invention
After anode heat-insulation cover board keeps the temperature carbon anode, thermal losses is reduced, the process for replacing carbon anode can be simplified, relative to existing
There is the process for replacing carbon anode, eliminates and take off the processes such as material, crust breaking, fishing block, lid material and cleaning anode scrap, when substantially reducing change poles
Between, and reduce the workload of change poles, current efficiency is improved, the production cost of enterprise is significantly reduced.
Specific implementation mode
The present invention is not limited by following embodiments, can be determined according to the technique and scheme of the present invention with actual conditions specific
Embodiment.It is previously mentioned various raw materials in the present invention unless otherwise specified, is raw material public in existing technology.
With reference to embodiment, the invention will be further described：
Embodiment 1：The carbon anode heat-preserving cover plate, it includes 30 parts to 60 parts of waterglass, containing gold that raw material is counted in parts by weight
Belong to 8 parts to 10 parts of 60 parts to 100 parts of powder, the auxiliary agent and 25 parts to 30 parts of water of aluminium and aluminium oxide, the carbon anode heat-preserving cover plate
It is obtained by following production methods：The first step, by the desired amount of waterglass, the desired amount of powder containing metallic aluminium and aluminium oxide and
Slurry is made in the desired amount of water stirring, and the desired amount of auxiliary agent is added while agitating, and the slurry that auxiliary agent is added passes through 10 minutes
To foaming and hardening in 15 minutes；Second step will take off after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold
Mould obtains profiled sheeting after demoulding, and profiled sheeting is obtained to carbon anode heat-preserving cover plate after maintenance, wherein the time of initial set hardening
It is 30 minutes to 40 minutes.
In the production method of carbon anode heat-preserving cover plate described in the present embodiment, due to containing metallic aluminium and aluminium oxide
Powder is raw material, makes have high temperature resistant and corrosion resistant performance, this implementation according to the carbon anode heat-preserving cover plate that the present embodiment obtains
Carbon anode heat-preserving cover plate described in example is resistant to 1000 DEG C to 1500 DEG C of high temperature, and the carbon anode according to the present embodiment is made to keep the temperature
Cover board can be applied in the hot environment of electrolytic aluminium；Carbon anode heat-preserving cover plate described in the present embodiment can substitute aluminium oxide and cover
Carbon anode heat-preserving cover plate described in the present embodiment is mounted on carbon anode and keeps the temperature by lid material, i.e., described through this embodiment
Carbon anode heat-preserving cover plate carbon anode is kept the temperature, meanwhile, carbon anode heat-preserving cover plate described in the present embodiment is mounted on carbon sun
After on extremely, the flue gas in electrolytic cell can be avoided to leak, the pollution so as to avoid flue gas to working environment, while avoiding cigarette
Gas is threatened caused by staff's health；In addition, when needing replacing anode, pass through the old carbon dismantled with needed replacing
Anode（Anode scrap）After carbon anode heat-preserving cover plate described in corresponding the present embodiment, you can anode scrap is proposed into electrolytic cell, it then will be new
Carbon anode be put into electrolytic cell, finally by described in the present embodiment removed carbon anode heat-preserving cover plate reset, by upper
After the step of replacing carbon anode is stated it is found that being kept the temperature to carbon anode using the carbon anode heat-preserving cover plate described in the present embodiment, subtract
Few thermal losses, can simplify the process for replacing carbon anode, relative to the existing process for replacing carbon anode（It is with aluminium oxide bulk cargo
Keep the temperature mulch）, eliminate and take off the processes such as material, crust breaking, fishing block, lid material and cleaning anode scrap, substantially reduce the change poles time, and subtract
The workload of change poles is lacked, has improved current efficiency, significantly reduce the production cost of enterprise.Auxiliary agent is existing public
Promote the preparation of slurry foaming, condensation.
Embodiment 2：The carbon anode heat-preserving cover plate, it includes 30 parts or 60 parts of waterglass, containing gold that raw material is counted in parts by weight
Belong to 8 parts or 10 parts of 60 parts or 100 parts of powder, the auxiliary agent and 25 parts or 30 parts of water of aluminium and aluminium oxide, the carbon anode heat-preserving cover plate
It is obtained by following production methods：The first step, by the desired amount of waterglass, the desired amount of powder containing metallic aluminium and aluminium oxide and
Slurry is made in the desired amount of water stirring, and the desired amount of auxiliary agent is added while agitating, and the slurry that auxiliary agent is added passes through 10 minutes
Or foaming and hardening in 15 minutes；Second step will take off after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold
Mould obtains profiled sheeting after demoulding, and profiled sheeting is obtained to carbon anode heat-preserving cover plate after maintenance, wherein the time of initial set hardening
It is 30 minutes or 40 minutes.
Embodiment 3：As the optimization of above-described embodiment, the powder containing metallic aluminium and aluminium oxide is metallic aluminium powder and oxidation
The combination of aluminium powder or metallic aluminium ash, when the powder containing metallic aluminium and aluminium oxide is the combination of metallic aluminium powder and alumina powder,
50 parts to 70 parts of parts by weight, the parts by weight of alumina powder of metallic aluminium powder are 10 parts to 30 parts.
Embodiment 4：As the optimization of above-described embodiment, auxiliary agent is combination or the coagulant of foaming agent and curing agent, when helping
When agent is the combination of foaming agent and curing agent, the parts by weight of foaming agent are 1 part to 2 parts, and curing agent is 7 parts to 8 parts.Foaming agent
For existing public foaming agent.Coagulant is the existing public coagulant for promoting slurry to condense.Curing agent is existing
Public curing agent.
Embodiment 5：As the optimization of above-described embodiment, in second step, maintenance method is watering or spray watering.
Embodiment 6：The carbon anode heat-preserving cover plate, raw material count in parts by weight include 30 parts of waterglass, metallic aluminium ash 60 parts,
30 parts of 8 parts of coagulant and water, the carbon anode heat-preserving cover plate are obtained by following production methods：The first step, by the desired amount of water glass
Slurry is made in glass, the desired amount of metallic aluminium ash and the stirring of the desired amount of water, and the desired amount of coagulant is added while agitating, adds
The slurry for entering coagulant passes through foaming and hardening in 10 minutes；Second step will be put by the slurry for foaming and hardening in mold
It is demoulded after carrying out pre-hardening hardening, profiled sheeting is obtained after demoulding, profiled sheeting is obtained to carbon anode heat-preserving cover plate after maintenance,
In, the time of initial set hardening is 40 minutes.Carbon anode heat-preserving cover plate described in the present embodiment is resistant to 1000 DEG C to 1100 DEG C of height
Temperature.
Embodiment 7：The carbon anode heat-preserving cover plate, raw material count in parts by weight include 60 parts of waterglass, 70 parts of metallic aluminium powder,
25 parts of 30 parts of alumina powder, 2 parts of foaming agent, 8 parts of curing agent and water, the carbon anode heat-preserving cover plate are obtained by following production methods
It arrives：Slurry is made in the stirring of the desired amount of waterglass, the desired amount of metallic aluminium powder, alumina powder and the desired amount of water by the first step,
It is added the desired amount of foaming agent and curing agent while agitating, the slurry that foaming agent and curing agent is added passes through 15 minutes hairs
Bubble and hardening；Second step will be demoulded after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold, be obtained after demoulding
Profiled sheeting is obtained carbon anode heat-preserving cover plate by profiled sheeting after maintenance, wherein the time of initial set hardening is 30 minutes.This reality
Apply the high temperature that the carbon anode heat-preserving cover plate described in example is resistant to 1300 DEG C to 1500 DEG C.
Embodiment 8：The carbon anode heat-preserving cover plate, raw material count in parts by weight include 35 parts of waterglass, 60 parts of metallic aluminium powder,
28 parts of 18 parts of alumina powder, 1 part of foaming agent, 7 parts of curing agent and water, the carbon anode heat-preserving cover plate are obtained by following production methods
It arrives：Slurry is made in the stirring of the desired amount of waterglass, the desired amount of metallic aluminium powder, alumina powder and the desired amount of water by the first step,
It is added the desired amount of foaming agent and curing agent while agitating, the slurry that foaming agent and curing agent is added passes through 13 minutes hairs
Bubble and hardening；Second step will be demoulded after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold, be obtained after demoulding
Profiled sheeting is obtained carbon anode heat-preserving cover plate by profiled sheeting after maintenance, wherein the time of initial set hardening is 35 minutes.This reality
Apply the high temperature that the carbon anode heat-preserving cover plate described in example is resistant to 1300 DEG C.
Embodiment 9：The carbon anode heat-preserving cover plate, raw material count in parts by weight include 50 parts of waterglass, 65 parts of metallic aluminium powder,
30 parts of 25 parts of alumina powder, 2 parts of foaming agent, 8 parts of curing agent and water, the carbon anode heat-preserving cover plate are obtained by following production methods
It arrives：Slurry is made in the stirring of the desired amount of waterglass, the desired amount of metallic aluminium powder, alumina powder and the desired amount of water by the first step,
It is added the desired amount of foaming agent and curing agent while agitating, the slurry that foaming agent and curing agent is added passes through 12 minutes hairs
Bubble and hardening；Second step will be demoulded after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold, be obtained after demoulding
Profiled sheeting is obtained carbon anode heat-preserving cover plate by profiled sheeting after maintenance, wherein the time of initial set hardening is 30 minutes.This reality
Apply the high temperature that the carbon anode heat-preserving cover plate described in example is resistant to 1400 DEG C.
Embodiment 10：The application method of carbon anode heat-preserving cover plate described in above-described embodiment, carries out as follows：By institute
The carbon anode heat-preserving cover plate stated is mounted on carbon anode and covers carbon anode, and the outer edge of carbon anode heat-preserving cover plate rides over electrolytic cell
Pot shell on.Carbon anode heat-preserving cover plate described in above-described embodiment is mounted on carbon anode and is kept the temperature, meanwhile, it is above-mentioned
After carbon anode heat-preserving cover plate described in embodiment is mounted on carbon anode, the flue gas in electrolytic cell can be avoided to leak, to keep away
Pollution of the flue gas to working environment is exempted from, while having avoided flue gas and being threatened caused by staff's health；In addition, needing
When replacing anode, pass through the old carbon anode dismantled with needed replacing（Anode scrap）Carbon anode described in corresponding above-described embodiment is protected
After warm cover board, you can anode scrap is proposed into electrolytic cell, then new carbon anode is put into electrolytic cell, the above-mentioned reality that will finally remove
Carbon anode heat-preserving cover plate described in example is applied to reset, by the step of above-mentioned replacement carbon anode it is found that using above-described embodiment
After the carbon anode heat-preserving cover plate keeps the temperature carbon anode, thermal losses is reduced, the process for replacing carbon anode can be simplified,
Relative to the existing process for replacing carbon anode（It is heat preservation mulch with aluminium oxide bulk cargo）, eliminate and take off material, crust breaking, fishing block, lid
The processes such as material and cleaning anode scrap, substantially reduce the change poles time, and reduce the workload of change poles, improve current efficiency, substantially
The production cost for reducing enterprise of degree.
In conclusion carbon anode heat-preserving cover plate of the present invention has high temperature resistant and corrosion resistant performance, it is resistant to
1000 DEG C to 1500 DEG C of high temperature makes carbon anode heat-preserving cover plate of the present invention can be applied to the hot environment of electrolytic aluminium
In；Carbon anode heat-preserving cover plate of the present invention can substitute aluminium oxide mulch, i.e., the carbon anode is protected through the invention
Warm cover board keeps the temperature carbon anode, meanwhile, after carbon anode heat-preserving cover plate of the present invention is mounted on carbon anode, it can keep away
The flue gas exempted from electrolytic cell leaks, the pollution so as to avoid flue gas to working environment, while avoiding flue gas to staff
Threat caused by health；In addition, when needing replacing anode, by dismantling the present invention corresponding with the anode scrap needed replacing
After the carbon anode heat-preserving cover plate, you can anode scrap is proposed electrolytic cell, then new carbon anode is put into electrolytic cell, finally
By the carbon anode heat-preserving cover plate of the present invention removed reset, by the step of above-mentioned replacement carbon anode it is found that use
After carbon anode heat-preserving cover plate of the present invention keeps the temperature carbon anode, thermal losses is reduced, replacement carbon anode can be simplified
Process eliminate relative to the existing process for replacing carbon anode and take off material, crust breaking, fishing block, lid material and the cleaning processes such as anode scrap,
The change poles time is substantially reduced, and reduces the workload of change poles, current efficiency is improved, significantly reduces the production of enterprise
Cost.
The above technical characteristic constitutes the embodiment of the present invention, can basis with stronger adaptability and implementation result
Actual needs increases and decreases non-essential technical characteristic, to meet the needs of different situations.
Claims (11)
1. a kind of carbon anode heat-preserving cover plate, it is characterised in that it includes 30 parts to 60 parts of waterglass that raw material is counted in parts by weight, is contained
8 parts to 10 parts of 60 parts to 100 parts of powder, the auxiliary agent and 25 parts to 30 parts of water of metallic aluminium and aluminium oxide, carbon anode heat-preserving cover plate is pressed
Following methods obtain：The first step, by the desired amount of waterglass, the desired amount of powder and aequum containing metallic aluminium and aluminium oxide
Water stirring slurry is made, the desired amount of auxiliary agent is added while agitating, be added auxiliary agent slurry pass through 10 minutes to 15 points
The foaming and hardening of clock；Second step will be demoulded after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold, be demoulded
After obtain profiled sheeting, profiled sheeting is obtained to carbon anode heat-preserving cover plate after maintenance, wherein initial set hardening time be 30 minutes
To 40 minutes.
2. carbon anode heat-preserving cover plate according to claim 1, it is characterised in that the powder containing metallic aluminium and aluminium oxide is
The combination of metallic aluminium powder and alumina powder or metallic aluminium ash, when the powder containing metallic aluminium and aluminium oxide is metallic aluminium powder and oxidation
When the combination of aluminium powder, 50 parts to 70 parts of parts by weight, the parts by weight of alumina powder of metallic aluminium powder are 10 parts to 30 parts.
3. carbon anode heat-preserving cover plate according to claim 1 or 2, it is characterised in that auxiliary agent is the group of foaming agent and curing agent
Conjunction or coagulant, when auxiliary agent is the combination of foaming agent and curing agent, the parts by weight of foaming agent are 1 part to 2 parts, and curing agent is
7 parts to 8 parts.
4. carbon anode heat-preserving cover plate according to claim 1 or 2, it is characterised in that in second step, maintenance method is watering
Or spray watering.
5. carbon anode heat-preserving cover plate according to claim 3, it is characterised in that in second step, maintenance method is watering or spray
Sprinkle water.
6. a kind of production method of carbon anode heat-preserving cover plate according to Claims 2 or 3 or 4 or 5, it is characterised in that raw material
Meter includes 30 parts to 60 parts of waterglass, 8 parts of 60 parts to 100 parts of powder, the auxiliary agent containing metallic aluminium and aluminium oxide in parts by weight
To 10 parts and 25 parts to 30 parts of water, the production method of the carbon anode heat-preserving cover plate carries out as follows：The first step, by institute
Slurry is made in the waterglass of requirement, the desired amount of powder containing metallic aluminium and aluminium oxide and the stirring of the desired amount of water, is stirring
While the desired amount of auxiliary agent is added, the slurry that auxiliary agent is added passes through foaming and hardening in 10 minutes to 15 minutes；Second step, will
It is demoulded after the slurry for foaming and hardening is put into the pre-hardening hardening of progress in mold, profiled sheeting is obtained after demoulding, profiled sheeting is passed through
Carbon anode heat-preserving cover plate is obtained after crossing maintenance, wherein the time of initial set hardening is 30 minutes to 40 minutes.
7. the production method of carbon anode heat-preserving cover plate according to claim 6, it is characterised in that contain metallic aluminium and oxidation
The powder of aluminium is combination or the metallic aluminium ash of metallic aluminium powder and alumina powder, when the powder containing metallic aluminium and aluminium oxide is metal
When the combination of aluminium powder and alumina powder, 50 parts to 70 parts of parts by weight, the parts by weight of alumina powder of metallic aluminium powder are 10 parts
To 30 parts.
8. the production method of the carbon anode heat-preserving cover plate described according to claim 6 or 7, it is characterised in that auxiliary agent be foaming agent and
The combination of curing agent or coagulant, when auxiliary agent is the combination of foaming agent and curing agent, the parts by weight of foaming agent are 1 part to 2
Part, curing agent is 7 parts to 8 parts.
9. the production method of the carbon anode heat-preserving cover plate described according to claim 6 or 7, it is characterised in that in second step, maintenance
Mode is watering or spray watering.
10. the production method of carbon anode heat-preserving cover plate according to claim 8, it is characterised in that in second step, maintenance side
Formula is watering or spray watering.
11. a kind of application method of carbon anode heat-preserving cover plate according to claims 1 or 2 or 3 or 4 or 5, it is characterised in that
It carries out as follows：The carbon anode heat-preserving cover plate is mounted on carbon anode and covers carbon anode, carbon anode insulation cover
The outer edge of plate rides on the pot shell of electrolytic cell.
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| CN109402672A (en) * | 2018-01-15 | 2019-03-01 | 贵州鼎协工友劳务有限公司 | A kind of method and aluminium lime-ash forming blocks of waste aluminium ash comprehensive utilization |
| CN110029366B (en) * | 2019-04-22 | 2020-09-22 | 贵州铝城铝业原材料研究发展有限公司 | Aluminum electrolysis continuous prebaked anode mechanical steel claw heat insulation structure |
| CN112342574A (en) * | 2020-11-06 | 2021-02-09 | 云南云铝润鑫铝业有限公司 | Method for recycling waste cell lining electrolyte material of aluminum cell |
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| CN101104942A (en) * | 2007-04-26 | 2008-01-16 | 中南大学 | Thermal insulation coating material for aluminum electrolysis inertia anode preheating-replacing and preparation method thereof |
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