CN106498443A - Carbon anode heat-preserving cover plate and preparation method thereof and using method - Google Patents
Carbon anode heat-preserving cover plate and preparation method thereof and using method Download PDFInfo
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- CN106498443A CN106498443A CN201610904023.4A CN201610904023A CN106498443A CN 106498443 A CN106498443 A CN 106498443A CN 201610904023 A CN201610904023 A CN 201610904023A CN 106498443 A CN106498443 A CN 106498443A
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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
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Abstract
The present invention relates to carbon anode insulation construction technical field, is a kind of carbon anode heat-preserving cover plate and preparation method thereof and using method, the carbon anode heat-preserving cover plate, raw material include waterglass, the powder containing metallic aluminium and aluminum oxide, auxiliary agent and water.When needing to change anode, after dismounting carbon anode heat-preserving cover plate of the present invention corresponding with the anode scrap for needing to change, anode scrap can be proposed electrolytic cell, then new carbon anode is put in electrolytic cell, finally the carbon anode heat-preserving cover plate of the present invention that pulls down is resetted, by above-mentioned steps, after being incubated to carbon anode using carbon anode heat-preserving cover plate of the present invention, reduce thermal losses, the operation for changing carbon anode can be simplified, relative to the existing operation for changing carbon anode, eliminate and take off material, crust breaking, drag for block, the operation such as lid material and cleaning anode scrap, substantially reduce the change poles time, and reduce the workload of change poles, improve current efficiency, the production cost of enterprise is significantly reduced.
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
As China's aluminum electrolysis industry is fast-developing, electrolytic cell per unit area yield scale is increasing, does carbon anode with aluminum oxide and covers
Lid material demand increasing, aluminum oxide as carbon anode mulch when, due to aluminum oxide be bulk cargo, when electrolytic cell pass through
After a period of time use, aluminum oxide does mulch and is easy to crust, when reusing, it is necessary to chats crust and crushes, so as to increase
The labour intensity of workman.Work as anode(Carbon anode)After working to some cycles in a cell(Usually 30 days to 40 days),
Need to change anode, i.e., anode scrap is put forward, change a new pole and enter.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 work during Aluminum Electrolysis Production
One work of intensity maximum.Which includes taking off material, crust breaking, proposes anode scrap, drag for block, fill the operations such as new pole, lid material, cleaning anode scrap.
As working environment is 950 DEG C or so, electrolyte exposes in atmosphere, and heat dissipation capacity is very big, flue gas in electrolytic cell(Contain
F flue gases)It is emitted in working environment, causes the working environment of workers severe, and replacing anode working amount is larger, each anode change
Last 30 minutes or so;Secondly as covered on carbon anode is aluminum oxide bulk cargo, and during proposing anode scrap, a large amount of aluminum oxide
Block(Crust)Fall in electrolytic cell with bulk cargo, general grab bucket by artificial or multifunction crane is pulled out, during pulling out, makes
The aluminium water of electrolytic cell bottom and electrolyte are seriously stirred, and electrolysis production current efficiency is significantly affected, and takes electrolyte out of;
In addition, lid virgin material(Aluminum oxide bulk cargo)When, will also bring alumina material into and enter electrolytic cell, bottom of electrolytic tank produces a large amount of precipitations,
Have a strong impact on electrolysis production.
Content of the invention
The invention provides a kind of carbon anode heat-preserving cover plate and preparation method thereof and using method, overcome above-mentioned existing skill
The deficiency of art, its can effectively solving existing using aluminum oxide bulk cargo as carbon anode mulch when, exist change carbon anode operation
Loaded down with trivial details problem.
One of technical scheme is realized by following measures:A kind of carbon anode heat-preserving cover plate, raw material are pressed
Parts by weight meter includes 30 parts to 60 parts of waterglass, 60 parts to 100 parts of the powder containing metallic aluminium and aluminum oxide, 8 parts of auxiliary agent extremely
10 parts and 25 parts to 30 parts of water, carbon anode heat-preserving cover plate is obtained as follows:The first step, by the desired amount of waterglass, required
Slip is made in powder and the desired amount of water containing the metallic aluminium and aluminum oxide stirring of amount, adds the desired amount of while stirring
Auxiliary agent, adds the slip of auxiliary agent through foaming and the hardening of 10 minutes to 15 minutes;Second step, will pass through the material of foaming and hardening
Slurry is put in mould and carries out the demoulding after pre-hardening hardening, obtains profiled sheeting, profiled sheeting is obtained after maintenance carbon anode after the demoulding
Heat-preserving cover plate, wherein, the time of initial set hardening is 30 minutes to 40 minutes.
The further optimization and/or improvements to one of foregoing invention technical scheme are presented herein below:
The above-mentioned powder containing metallic aluminium and aluminum oxide is combination or the metallic aluminium ash of metallic aluminium powder and alumina powder, when containing gold
When the powder of category aluminium and aluminum oxide is the combination of metallic aluminium powder and alumina powder, 50 parts to 70 parts of the parts by weight of metallic aluminium powder,
The parts by weight of alumina powder are 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 to water or spray watering.
The two of technical scheme are realized by following measures:A kind of carbon sun described in one of technical scheme
The preparation method of pole heat-preserving cover plate, raw materials by weight portion meter include 30 parts to 60 parts of waterglass, contain metallic aluminium and aluminum oxide
60 parts to 100 parts of powder, 25 parts to 30 parts of 8 parts to 10 parts of auxiliary agent and water, the preparation method of described carbon anode heat-preserving cover plate
Carry out as follows:The first step, by the desired amount of waterglass, the desired amount of powder containing metallic aluminium and aluminum oxide and required
Slip is made in the water stirring of amount, while stirring adds the desired amount of auxiliary agent, adds the slip of auxiliary agent through 10 minutes to 15
The foaming and hardening of minute;Second step, carries out the demoulding after pre-hardening hardening by being put in mould through the slip for foaming and harden, and takes off
Profiled sheeting being obtained after mould, profiled sheeting being obtained after maintenance carbon anode heat-preserving cover plate, wherein, the time of initial set hardening is 30 points
Clock was to 40 minutes.
To foregoing invention technical scheme two further optimization and/or improvements are presented herein below:
The above-mentioned powder containing metallic aluminium and aluminum oxide is combination or the metallic aluminium ash of metallic aluminium powder and alumina powder, when containing gold
When the powder of category aluminium and aluminum oxide is the combination of metallic aluminium powder and alumina powder, 50 parts to 70 parts of the parts by weight of metallic aluminium powder,
The parts by weight of alumina powder are 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 to water or spray watering.
The three of technical scheme are realized by following measures:A kind of carbon sun described in one of technical scheme
The using method of pole heat-preserving cover plate, is carried out as follows:Described carbon anode heat-preserving cover plate on carbon anode and is hidden
Lid carbon anode, the outward flange of carbon anode heat-preserving cover plate are ridden 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, and which is resistant to 1000 DEG C to 1500
DEG C high temperature, carbon anode heat-preserving cover plate of the present invention is applied in the hot environment of electrolytic aluminium;Of the present invention
Carbon anode heat-preserving cover plate can substitute aluminum oxide mulch, i.e., by carbon anode heat-preserving cover plate of the present invention to carbon anode
It is incubated, meanwhile, after carbon anode heat-preserving cover plate of the present invention is on carbon anode, the cigarette in electrolytic cell can be avoided
Gas leaks, so as to avoiding pollution of the flue gas to working environment, while avoiding, flue gas is healthy to staff to be caused
Threaten;In addition, when needing to change anode, being protected by dismounting carbon anode of the present invention corresponding with the anode scrap for needing to change
After warm cover plate, you can anode scrap is proposed electrolytic cell, then new carbon anode is put in electrolytic cell, finally by the present invention for pulling down
Described carbon anode heat-preserving cover plate resets, the step of by above-mentioned replacing carbon anode, using carbon of the present invention
After anode heat-insulation cover plate is incubated to carbon anode, thermal losses is reduced, the operation for changing carbon anode can be simplified, relative to existing
There is the operation for changing carbon anode, eliminate and take off material, crust breaking, drag for the operations such as block, lid material and cleaning anode scrap, when substantially reducing change poles
Between, and the workload of change poles is reduced, current efficiency is improved, the production cost of enterprise is significantly reduced.
Specific embodiment
The present invention is not limited by following embodiments, can technology according to the present invention scheme and actual conditions determining specifically
Embodiment.Various raw materials are previously mentioned in the present invention if no special instructions, are public raw material in existing technology.
With reference to embodiment, the invention will be further described:
Embodiment 1:The carbon anode heat-preserving cover plate, raw materials by weight portion meter include 30 parts to 60 parts of waterglass, contain metallic aluminium
60 parts to 100 parts of powder, 8 parts to 10 parts of auxiliary agent and 25 parts to 30 parts of water with aluminum oxide, the carbon anode heat-preserving cover plate is pressed
State preparation method to obtain:The first step, by the desired amount of waterglass, the desired amount of powder containing metallic aluminium and aluminum oxide and required
Slip is made in the water stirring of amount, while stirring adds the desired amount of auxiliary agent, adds the slip of auxiliary agent through 10 minutes to 15
The foaming and hardening of minute;Second step, carries out the demoulding after pre-hardening hardening by being put in mould through the slip for foaming and harden, and takes off
Profiled sheeting being obtained after mould, profiled sheeting being obtained after maintenance carbon anode heat-preserving cover plate, wherein, the time of initial set hardening is 30 points
Clock was to 40 minutes.
In the preparation method of the carbon anode heat-preserving cover plate described in the present embodiment, due to containing metallic aluminium and aluminum oxide
Powder is raw material, makes the carbon anode heat-preserving cover plate obtained according to the present embodiment that there is high temperature resistant and corrosion resistant performance, this enforcement
Carbon anode heat-preserving cover plate described in example is resistant to 1000 DEG C to 1500 DEG C of high temperature, is incubated the carbon anode according to the present embodiment
Cover plate can be applied in the hot environment of electrolytic aluminium;Carbon anode heat-preserving cover plate described in the present embodiment can substitute aluminum oxide and cover
Lid material, the carbon anode heat-preserving cover plate described in the present embodiment is incubated on carbon anode, i.e., by described in the present embodiment
Carbon anode heat-preserving cover plate carbon anode is incubated, meanwhile, the carbon anode heat-preserving cover plate described in the present embodiment installed in carbon sun
After extremely going up, the flue gas in electrolytic cell can be avoided from leaking, so as to avoid pollution of the flue gas to working environment, while avoiding cigarette
The gas threat for causing healthy to staff;In addition, when needing to change anode, by dismounting and the old carbon for needing replacing
Anode(Anode scrap)After carbon anode heat-preserving cover plate described in corresponding the present embodiment, you can anode scrap is proposed electrolytic cell, then will be new
Carbon anode be put in electrolytic cell, finally by described in the present embodiment that pulls down carbon anode heat-preserving cover plate reset, by upper
The step of stating replacing carbon anode is understood, after being incubated to carbon anode using the carbon anode heat-preserving cover plate described in the present embodiment, is subtracted
Few thermal losses, can simplify the operation for changing carbon anode, relative to the existing operation for changing carbon anode(With aluminum oxide bulk cargo it is
Insulation mulch), eliminate and take off material, crust breaking, drag for the operations such as 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
The preparation for promote slip foaming, condensing.
Embodiment 2:The carbon anode heat-preserving cover plate, raw materials by weight portion meter include 30 parts or 60 parts of waterglass, contain gold
25 parts or 30 parts of 60 parts or 100 parts of the powder of category aluminium and aluminum oxide, 8 parts or 10 parts of auxiliary agent and water, the carbon anode heat-preserving cover plate
Obtain by following preparation methods:The first step, by the desired amount of waterglass, the desired amount of powder containing metallic aluminium and aluminum oxide and
Slip is made in the desired amount of water stirring, while stirring adds the desired amount of auxiliary agent, adds the slip of auxiliary agent through 10 minutes
Or foaming and the hardening of 15 minutes;Second step, is carried out taking off after pre-hardening hardening by being put in mould through the slip for foaming and harden
Mould, obtains profiled sheeting after the demoulding, profiled sheeting is obtained after maintenance carbon anode heat-preserving cover plate, wherein, the time of initial set hardening
For 30 minutes or 40 minutes.
Embodiment 3:Used as the optimization of above-described embodiment, the powder containing metallic aluminium and aluminum oxide is metallic aluminium powder and oxidation
The combination of aluminium powder or metallic aluminium ash, when the combination that the powder containing metallic aluminium and aluminum oxide is metallic aluminium powder and alumina powder,
50 parts of parts by weight to 70 parts, alumina powder of parts by weight of metallic aluminium powder are 10 parts to 30 parts.
Embodiment 4:Used 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 slip to condense.Curing agent is existing
Public curing agent.
Embodiment 5:As the optimization of above-described embodiment, in second step, maintenance method is to water or spray watering.
Embodiment 6:The carbon anode heat-preserving cover plate, raw materials by weight portion meter 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 preparation methods:The first step, by the desired amount of water glass
Slip is made in the grey and the desired amount of water stirring of glass, the desired amount of metallic aluminium, while stirring adds the desired amount of coagulant, plus
Enter foaming and hardening that the slip of coagulant was through 10 minutes;Second step, the slip for passing through foaming and hardening is put in mould
The demoulding after pre-hardening hardening is carried out, profiled sheeting after the demoulding, is obtained, profiled sheeting is obtained carbon anode heat-preserving cover plate after maintenance, its
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 materials by weight portion meter 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 preparation methods
Arrive:The stirring of the desired amount of waterglass, the desired amount of metallic aluminium powder, alumina powder and the desired amount of water is made slip by the first step,
The desired amount of foaming agent and curing agent is added while stirring, add the slip of foaming agent and curing agent to send out through 15 minutes
Bubble and hardening;Second step, carries out the demoulding after pre-hardening hardening by being put in mould through the slip for foaming and harden, obtains after the demoulding
Profiled sheeting, profiled sheeting is obtained after maintenance carbon anode heat-preserving cover plate, and 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 materials by weight portion meter 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 preparation methods
Arrive:The stirring of the desired amount of waterglass, the desired amount of metallic aluminium powder, alumina powder and the desired amount of water is made slip by the first step,
The desired amount of foaming agent and curing agent is added while stirring, add the slip of foaming agent and curing agent to send out through 13 minutes
Bubble and hardening;Second step, carries out the demoulding after pre-hardening hardening by being put in mould through the slip for foaming and harden, obtains after the demoulding
Profiled sheeting, profiled sheeting is obtained after maintenance carbon anode heat-preserving cover plate, and 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 materials by weight portion meter 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 preparation methods
Arrive:The stirring of the desired amount of waterglass, the desired amount of metallic aluminium powder, alumina powder and the desired amount of water is made slip by the first step,
The desired amount of foaming agent and curing agent is added while stirring, add the slip of foaming agent and curing agent to send out through 12 minutes
Bubble and hardening;Second step, carries out the demoulding after pre-hardening hardening by being put in mould through the slip for foaming and harden, obtains after the demoulding
Profiled sheeting, profiled sheeting is obtained after maintenance carbon anode heat-preserving cover plate, and 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 using method of the carbon anode heat-preserving cover plate described in above-described embodiment, is carried out as follows:By institute
The carbon anode heat-preserving cover plate that states on carbon anode and covers carbon anode, and the outward flange 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 incubated on carbon anode, meanwhile, above-mentioned
After carbon anode heat-preserving cover plate described in embodiment is on carbon anode, the flue gas in electrolytic cell can be avoided to leak, so as to keep away
Pollution of the flue gas to working environment is exempted from, while avoiding the flue gas threat for causing healthy to staff;In addition, needing
When changing anode, by dismounting and the old carbon anode for needing replacing(Anode scrap)Carbon anode described in corresponding above-described embodiment is protected
After warm cover plate, you can anode scrap is proposed electrolytic cell, then new carbon anode is put in electrolytic cell, finally by the above-mentioned reality that pulls down
Apply carbon anode heat-preserving cover plate described in example to reset, the step of by above-mentioned replacing carbon anode, using above-described embodiment
After described carbon anode heat-preserving cover plate is incubated to carbon anode, thermal losses is reduced, the operation for changing carbon anode can be simplified,
Relative to the existing operation for changing carbon anode(With aluminum oxide bulk cargo as being incubated mulch), eliminate and take off material, crust breaking, drag for block, lid
Material and the cleaning operation such as anode scrap, substantially reduce the change poles time, and reduce the workload of change poles, improve current efficiency, significantly
The production cost for reducing enterprise of degree.
In sum, carbon anode heat-preserving cover plate of the present invention has high temperature resistant and corrosion resistant performance, and which is resistant to
1000 DEG C to 1500 DEG C of high temperature, enables carbon anode heat-preserving cover plate of the present invention to be applied to the hot environment of electrolytic aluminium
In;Carbon anode heat-preserving cover plate of the present invention can substitute aluminum oxide mulch, i.e., protected by carbon anode of the present invention
Warm cover plate is incubated to carbon anode, meanwhile, after carbon anode heat-preserving cover plate of the present invention is on carbon anode, can keep away
The flue gas that exempts from electrolytic cell leaks, so as to avoid pollution of the flue gas to working environment, while avoiding flue gas to staff
The healthy threat for causing;In addition, when needing to change anode, by the dismounting present invention corresponding with the anode scrap for needing to change
After described carbon anode heat-preserving cover plate, you can anode scrap is proposed electrolytic cell, then new carbon anode is put in electrolytic cell, finally
The carbon anode heat-preserving cover plate of the present invention that pulls down is resetted, the step of by above-mentioned replacing carbon anode, use
After carbon anode heat-preserving cover plate of the present invention is incubated to carbon anode, thermal losses is reduced, replacing carbon anode can be simplified
Operation, relative to the existing operation for changing carbon anode, eliminate and take off material, crust breaking, drag for block, lid material and clear up the operation such as anode scrap,
Substantially reduce the change poles time, and reduce the workload of change poles, improve current efficiency, significantly reduce the production of enterprise
Cost.
Above technical characteristic constitutes embodiments of the invention, and which has stronger adaptability and implementation result, can basis
The non-essential technical characteristic of increase and decrease is actually needed, the demand of different situations is met.
Claims (10)
1. a kind of carbon anode heat-preserving cover plate, it is characterised in that raw materials by weight portion meter includes 30 parts to 60 parts of waterglass, contains
25 parts to 30 parts of 60 parts to 100 parts of the powder of metallic aluminium and aluminum oxide, 8 parts to 10 parts of auxiliary agent and water, carbon anode heat-preserving cover plate is pressed
Following methods are obtained:The first step, by the desired amount of waterglass, the desired amount of powder and aequum containing metallic aluminium and aluminum oxide
Water stirring make slip, add the desired amount of auxiliary agent while stirring, add the slip of auxiliary agent through 10 minutes to 15 points
The foaming and hardening of clock;Second step, carries out the demoulding after pre-hardening hardening, the demoulding by being put in mould through the slip for foaming and harden
After obtain profiled sheeting, profiled sheeting is obtained after maintenance carbon anode heat-preserving cover plate, 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 aluminum oxide is
The combination of metallic aluminium powder and alumina powder or metallic aluminium ash, when the powder containing metallic aluminium and aluminum oxide is metallic aluminium powder and oxidation
During the combination of aluminium powder, 50 parts of parts by weight to 70 parts, alumina powder of parts by weight of metallic aluminium powder are 10 parts to 30 parts.
3. carbon anode heat-preserving cover plate according to claim 1 and 2, it is characterised in that auxiliary agent is the group of foaming agent and curing agent
Close or coagulant, when the combination that auxiliary agent is 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 and 2, it is characterised in that in second step, maintenance method is for 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 for watering or spray
Sprinkle water.
6. a kind of preparation method of the 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, 60 parts to 100 parts of the powder containing metallic aluminium and aluminum oxide, 8 parts of auxiliary agent by weight
To 10 parts and 25 parts to 30 parts of water, the preparation method of described carbon anode heat-preserving cover plate is carried out as follows:The first step, by institute
Slip is made in the waterglass of requirement, the desired amount of powder and the desired amount of water containing metallic aluminium and aluminum oxide stirring, in stirring
While add the desired amount of auxiliary agent, add the slip of auxiliary agent through foaming and the hardening of 10 minutes to 15 minutes;Second step, will
Be put into the demoulding after pre-hardening hardening being carried out in mould through foaming and the slip for hardening, obtain profiled sheeting, profiled sheeting is passed through after the demoulding
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 preparation method of carbon anode heat-preserving cover plate according to claim 6, it is characterised in that containing 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 aluminum oxide is metal
During the combination of aluminium powder and alumina powder, 50 parts of parts by weight to 70 parts, alumina powder of parts by weight of metallic aluminium powder are 10 parts
To 30 parts.
8. the preparation method of the carbon anode heat-preserving cover plate 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 the combination that auxiliary agent is 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 preparation method of the carbon anode heat-preserving cover plate according to claim 6 or 7 or 8, it is characterised in that in second step, supports
Shield mode is to water or spray watering.
10. a kind of using method of the carbon anode heat-preserving cover plate according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that
Carry out as follows:Described carbon anode heat-preserving cover plate on carbon anode and is covered carbon anode, carbon anode insulation cover
The outward flange of plate is ridden 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 |
CN110029366A (en) * | 2019-04-22 | 2019-07-19 | 贵州铝城铝业原材料研究发展有限公司 | A kind of mechanical steel pawl insulation construction of aluminium electroloysis continuous prebaked anode cell |
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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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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