CN110029358A - A kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method and structure - Google Patents
A kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method and structure Download PDFInfo
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- CN110029358A CN110029358A CN201910324971.4A CN201910324971A CN110029358A CN 110029358 A CN110029358 A CN 110029358A CN 201910324971 A CN201910324971 A CN 201910324971A CN 110029358 A CN110029358 A CN 110029358A
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
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- 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
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Abstract
The invention discloses a kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method and structure.Mulch is kept the temperature in the aluminium oxide for remaining surrounding in existing pre-baked anode carbon blocks surrounding and electrolytic cell, under the premise of the aluminium oxide heat preservation mulch for eliminating anode carbon block upper surface, foamed heat insulating cover board is covered on the aluminium oxide heat preservation mulch that the aluminium oxide of anode carbon block upper surface, anode carbon block surrounding keeps the temperature surrounding in mulch and electrolytic cell again, is aided with foamed heat insulating sealing and small item is assisted to reinforce heat preservation.The present invention has the air on thoroughly isolation anode carbon block surface, prevents the oxidational losses on anode carbon block surface；Heat insulation effect is good, and heat-energy losses are small, and the power consumption of electrolytic cell can be greatly reduced；Anode carbon block surrounding has the aluminium oxide being sintered to keep the temperature mulch, support removes the old anode carbon block of anode steel claw, and old anode carbon block upper surface alumina-free keeps the temperature mulch, greatly facilitates the new anode carbon block of connection, new and old anode carbon block bonding is secured, reliable, the low feature of production cost.
Description
Technical field
The present invention relates to a kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method and structure, especially a kind of aluminium electroloysis connects
Continuous prebaked anode aluminium oxide heat preservation mulch and foamed heat insulating cover board complex heat-preservation method and structure.
Background technique
Pre- training anode is all made of single aluminium oxide heat preservation mulch heat preservation now, and aluminium oxide keeps the temperature mulch itself not
It is thermal insulation material, main component is AL2O3, and AL2O3Thermal coefficient 31.4W/m.k, usual thermal coefficient be less than 0.12W/
The material of m.k is known as thermal insulation material, and the thermal coefficient of foaming thermal-insulating is generally less than 0.05W/m.k, foaming thermal-insulating
Thermal coefficient is about 1/600 or less aluminium oxide.
Anode electrolytic cell heat dissipation accounts for 50% or so of aluminum electrolytic tank radiation loss under normal circumstances, the thermal energy income of electrolytic cell
From the burning of anode carbon block and the electric energy conversion of Each part, especially from anode assemblies, the electric energy of electrolyte layer
Conversion.AL2O3Decomposition pressure be 1.7V, the operating voltage of electrolytic cell is 4V, and ton aluminium direct current consumption is 13000 degree.That is point
The electric energy of solution slot input only has the energy of 1.7 ÷, 4 × 13000=5525 degree of electricity for decomposing aluminium oxide, remaining 7475 degree of electric energy
In process of production, the thermal balance of electrolytic cell is first maintained, is finally scattered and disappeared in the form of thermal energy.In aluminum electrolysis process middle-jiao yang, function of the spleen and stomach
The thermal energy substantially constant of pole carbon block burning release, but it is not enough to maintain the thermal balance of electrolytic cell, insufficient part is converted by electric energy
, substantially it is equal to economize on electricity so reducing heat-energy losses, therefore electrolytic cell economizing on energy and electricity has a high potential.
Prebaked anode Aluminum Electrolysis Production is traditional classical production method, technique to 1970s it is mature since,
There are a large amount of Chinese and overseas companies, scientific research institution and colleges and universities all in the heat-retaining electricity-saving research for being dedicated to electrolytic aluminium, to fail to change electrolysis
The thermal retardation form of the single aluminium oxide mulch heat preservation in slot top.
A kind of hollow perfusion of aluminium electroloysis continuous prebaked anode cell that inventor is researched and developed, aluminum water casting-mechanical combined type steel pawl
When forming new anode carbon block component with anode carbon block, the aluminium oxide mulch for using existing electrolysis process single is electrolytic cell sun
When pole is kept the temperature, aluminium oxide heat preservation mulch can not thoroughly completely cut off air, and heat insulation effect is poor, and amount of heat is caused to lose；Anode carbon
Block upper surface temperature is high, and under lasting hot environment, the aluminium oxide mulch of anode carbon block upper surface is easy sintering and is attached to
On the upper surface of anode carbon block and in charcoal bowl, when connecting new anode carbon block, hollow perfusion, aluminum water casting-mechanical combined type steel
Pawl takes out inconvenience from old anode carbon block, and heat preservation mulch also reduces the bonding connection fastness of new and old anode carbon block and reliable
Property.
In conclusion the prior art, which exists, can not thoroughly completely cut off air, anode carbon block surface scaling loss is serious；Heat insulation effect
Difference causes a large amount of heat-energy losses, increases the power consumption of electrolytic cell；The aluminium oxide mulch of anode carbon block upper surface reduces new and old sun
The adhesive strength of pole carbon block connects the technical problem of new anode carbon block inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method and structure.The present invention
Complex heat-preservation method and structure be to be covered by retaining surrounding aluminium oxide heat preservation in existing pre-baked anode carbon blocks surrounding and electrolytic cell
Lid material eliminates the aluminium oxide heat preservation mulch of anode carbon block upper surface.Again in anode carbon block upper surface, anode carbon block surrounding
Aluminium oxide keeps the temperature mulch, the aluminium oxide of electrolytic cell surrounding keeps the temperature and covers foamed heat insulating cover board on mulch, is aided with foamed heat insulating
Sealing assists small item reinforcement to keep the temperature to obtain complex heat-preservation method and structure.
The present invention has the air on thoroughly isolation anode carbon block surface, and the oxidational losses on anode carbon block surface is greatly decreased；
Heat insulation effect is good, and heat-energy losses are small, and the power consumption of electrolytic cell can be greatly reduced；Anode carbon block surrounding has the aluminium oxide being sintered heat preservation
Mulch, support remove the old anode carbon block of anode steel claw, and old anode carbon block upper surface alumina-free keeps the temperature mulch, greatly
Facilitate the new anode carbon block of connection, the low feature of production cost.
Technical solution of the present invention: a kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method and structure, it is existing remaining
There is the aluminium oxide heat preservation mulch of surrounding in pre-baked anode carbon blocks surrounding and electrolytic cell, eliminates the oxidation of anode carbon block upper surface
Under the premise of aluminium keeps the temperature mulch, then in the aluminium oxide heat preservation mulch of anode carbon block upper surface, anode carbon block surrounding and electrolysis
Foamed heat insulating cover board is covered on the aluminium oxide heat preservation mulch of surrounding in slot, is aided with foamed heat insulating sealing and small item is assisted to reinforce protecting
Temperature.
It include four in anode carbon block surrounding and electrolytic cell in aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned
It is equipped with aluminium oxide heat preservation mulch week, aluminium oxide keeps the temperature and is equipped with foamed heat insulating cover board above mulch and anode carbon block, foaming
Heat-preserving cover plate is composed of using the axis of anode carbon block long axis direction as line of demarcation two major parts, and inside, which has vacant position to match, to be accommodated
Hollow perfusion, the hollow perfusion of aluminum water, aluminum water casting-mechanical combined type steel pawl.
In aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned, the thickness and phase of the aluminium oxide heat preservation mulch
Short anode carbon block upper surface is concordant in two pieces of adjacent anode carbon blocks.
In aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned, gap is adopted between the adjacent foamed heat insulating cover board
Small item is assisted to be sealed with foamed heat insulating sealing.
In aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned, it is two layers that the foamed heat insulating sealing, which assists small item,
Structure, lower layer 10-30mm are foaming heatproof cementaceous bottom plate, and upper layer is foaming heatproof resin body, foamed heat insulating sealing auxiliary
Little Tiao lower layer foaming heatproof cementaceous bottom plate and upper layer foaming heatproof resin body waterglass or heatproof resin bonding.
In aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned, the foamed heat insulating cover board is double-layer structure, under
Layer 10-30mm be foaming heatproof cementaceous bottom plate, upper layer be foaming heatproof resin body, foamed heat insulating cover board with a thickness of 200-
500mm, foam heatproof resin body waterglass or resistance on lower layer's foaming heatproof cementaceous bottom plate and the upper layer of foamed heat insulating cover board
Warm resin bonding.
In aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned, the hollow perfusion, aluminum water casting-machinery are compound
Formula steel pawl is coated by foamed heat insulating cover board, and hollow perfusion, the guide rod on aluminum water casting-mechanical combined type steel pawl are from foamed heat insulating lid
It is stretched out among plate.
In aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned, the hollow perfusion, aluminum water casting-machinery are compound
Formula steel pawl, eliminates the explosion block of steel between existing steel pawl guide rod and steel pawl, aluminum compound structure, and heat preservation, heating are not only restricted to
The limitation of non-refractory explosion block.
In aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned, described the present inventor has applied a variety of and continuous pre-
Hollow perfusion, aluminum water casting -- the mechanical combined steel pawl that anode carbon block is used cooperatively are roasted, with aluminum water instead of existing steel pawl
The phosphorus pig iron of casting uses cored steel shell structure and aluminum water, all spaces in the full hollow guide rod of perfusion, steel pawl, shape is perfused
At aluminium core conduction, steel, the aluminum compound structure explosion block of heating critical constraints are eliminated, is heated up unrestricted.At room temperature, steel pawl quilt
The cast aluminium and anode carbon block being set in charcoal bowl are rigidly connected, and pre-baked anode carbon blocks are consumed to only surplus 300mm on electrolytic cell
When be old anode carbon block, at this point, hollow perfusion, aluminum water casting in the aluminum water melted in charcoal bowl on unlock anode carbon block -- it is mechanical
Combined steel pawl, entirety removes hollow perfusion, aluminum water is cast -- and mechanical combined type steel pawl connects new anode carbon block.
It is described to connect new anode carbon block continuous use in aluminium electroloysis continuous prebaked anode cell compound insulation structure above-mentioned
Afterwards, restore anode carbon block top, anode carbon block surrounding aluminium oxide keeps the temperature mulch, surrounding aluminium oxide keeps the temperature mulch in electrolytic cell
On foamed heat insulating cover board.
Compared with prior art, the invention has the following advantages:
1, thickness and the anode carbon block upper surface short in two pieces of adjacent anode carbon blocks that mulch is kept the temperature by aluminium oxide are flat
Fastness, reliability when together, to prevent anode carbon block surface from thering is heat preservation mulch to reduce new and old anode carbon block bonding connection,
It is old anode carbon block when anode carbon block is consumed to 300mm when working on electrolytic cell, the cast aluminium in old anode carbon block charcoal bowl is in electricity
It is melted already under high temperature action in solution slot, mechanical combined type steel pawl can unlock at this moment, and entirety removes hollow perfusion, aluminum water is poured
Casting -- mechanical combined type steel pawl.Old anode carbon block surrounding has the aluminium oxide being sintered heat preservation mulch to support old anode carbon block original place
It is motionless, and weight can also be born, it connects new anode carbon block conveniently, docks new anode carbon after old anode carbon block upper surface is cooling
Block smears bonding agent between new and old anode carbon block and is bonded integral continuous use, because anode carbon block surface does not have aluminium oxide guarantor
It is convenient to connect new anode carbon block for warm mulch, and is bonded securely, reliably.
2, when the foamed heat insulating cover board that the present invention uses is for continuous prebaked anode cell carbon block production method, anode carbon is remained
The aluminium oxide of surrounding keeps the temperature mulch in block surrounding and electrolytic cell, eliminates the aluminium oxide heat preservation covering of anode carbon block upper surface
Material.The part not covered by anode carbon block in anode carbon block surrounding and electrolytic cell, using the heat preservation covering of existing aluminium oxide
On the basis of material heat preservation, then the capping foamed heat insulating cover board on anode carbon block upper surface and aluminium oxide heat preservation mulch, it is aided with
Foamed heat insulating sealing assists small item sealing, reinforces heat preservation, such composite thermal insulation method, with existing single aluminium oxide mulch
It compares, the heat loss of upper part of the electrolytic cell can not only be greatly decreased, 50% or more electrolytic cell upper layer radiation loss can be reduced, can be reduced
2000-3000 KWhs/ton of aluminium of power consumption, energy-saving effect are huge.
3, with thick 500mm, long 2100mm, for the foaming insulation board of wide 370mm, lower layer 20mm is foaming heatproof cementaceous
Bottom plate, upper layer 480mm are foaming heatproof resinite main body, and total weight can be controlled in 10kg or less.Hair of the present invention
Steeping insulation board has the characteristics of light-weight, good heat-insulation effect, and foaming insulation board is not only extremely light, and size must be according to groove profile differing needles
Property is made, foamed heat insulating cover board is composed of using the axis of anode carbon block long axis direction as in line of demarcation points two major parts, interior
Portion, which has vacant position to match, accommodates hollow perfusion, aluminum water casting -- mechanical combined type steel pawl and guide rod, in two points of foamed heat insulating cover board
Seam, gas leakage is few, and heat loss is reduced, and removes and covers convenient for foamed heat insulating cover board；The bottom plate of foamed heat insulating cover board is close to sun
The upper surface of pole carbon block, has completely cut off the contact of air with anode carbon block upper surface, and foamed heat insulating sealing assists small item to assist closing
Anode carbon block and anode carbon block clearance space, prevent the flowing of air, it is therefore prevented that the scaling loss on anode carbon block surface, especially
The scaling loss of anode carbon block upper surface.
4, it when the present invention is for continuous prebaked anode cell production, in the new anode carbon block of every secondary connection, first removes foaming and protects
Warm cover board, after new anode carbon block connects, careful tamps anode carbon block surrounding, the oxidation of filling with aluminium oxide heat preservation mulch
Aluminium heat preservation mulch is concordant with adjacent short anode carbon block upper surface, covers foamed heat insulating cover board and foamed heat insulating sealing auxiliary is small
Item.
It 5, can due to keeping the temperature mulch instead of the aluminium oxide on electrolytic cell Anodic carbon block top using foamed heat insulating cover board
Mulch is kept the temperature since temperature is excessively high to avoid the aluminium oxide on electrolytic cell Anodic carbon block top, is sintered the upper table in anode carbon block
Face, to realize that hollow perfusion, aluminum water casting -- mechanical combined type steel pawl takes out of anode carbon block when need to connect new anode carbon block
Facilitate out, adhesive layer no-sundries when new and old anode carbon block docks, bonding is secured.
6, due in electrolytic cell anode carbon block electrolysis amount it is different, so anode carbon block height it is different, it is right
In the gap on adjacent two pieces of anode carbon blocks between foamed heat insulating cover board, small item is assisted to be sealed using foamed heat insulating sealing,
Foamed heat insulating sealing assists the thickness of small item to be not quite similar.Foamed heat insulating sealing assists the use of small item, and heat is avoided to protect from bubble
Gap is scattered and disappeared between warm cover board, realizes that heat insulation effect is good, easy to use, and it is double-layer structure that foamed heat insulating sealing, which assists small item,
Lower layer 10-30mm is foaming heatproof cementaceous bottom plate, and upper layer is foaming heatproof resin body, has light-weight, good heat-insulation effect
The characteristics of.
7, since hollow perfusion of the present invention, aluminum water are cast -- mechanical combined type steel pawl eliminates existing steel pawl
Steel, aluminum compound structure explosion block keep the temperature, heat up unrestricted, and foamed heat insulating cover board can coat entire steel pawl, only guide rod are needed to stretch out,
Heat insulation effect is good, securely and reliably.
In conclusion complex heat-preservation method and structure of the invention be by retain existing pre-baked anode carbon blocks surrounding and
Surrounding aluminium oxide keeps the temperature mulch in electrolytic cell, under the premise of the aluminium oxide heat preservation mulch for removing anode carbon block upper surface, then
Mulch is kept the temperature in the aluminium oxide heat preservation mulch of anode carbon block upper surface, anode carbon block surrounding, the aluminium oxide of electrolytic cell surrounding
Upper capping foamed heat insulating cover board is aided with foamed heat insulating sealing and small item is assisted to reinforce heat preservation.The present invention has thoroughly isolation anode carbon
The air on block surface prevents the oxidational losses on anode carbon block surface；Heat insulation effect is good, and heat-energy losses are small, and electrolysis can be greatly reduced
The power consumption of slot；Anode carbon block surrounding has the aluminium oxide being sintered to keep the temperature mulch, and support removes the old anode carbon of anode steel claw
Block, and old anode carbon block upper surface alumina-free keeps the temperature mulch, greatly facilitates the new anode carbon block of connection, new and old anode carbon
Block bonding is secured, reliable, the low feature of production cost.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is operation schematic diagram of the invention；
Fig. 3 is local muti-piece anode carbon block work diagrammatic side view of the invention；
Fig. 4 is monolithic anode carbon block main view of the invention；
Fig. 5 is monolithic anode carbon block side view of the invention；
Fig. 6 is monolithic anode carbon block top view of the present invention.
The label in accompanying drawing is: 1- guide rod, the hollow perfusion of 2-, aluminum water casting-mechanical combined type steel pawl, 3- foamed heat insulating lid
Plate, 4- anode carbon block, 5- aluminium oxide keep the temperature mulch, and the sealing of 6- foamed heat insulating assists small item, 7- charcoal bowl, 8- electrolytic cell.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment.A kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method, it is as shown in figures 1 to 6, existing pre- remaining
The aluminium oxide for roasting surrounding in 4 surrounding of anode carbon block and electrolytic cell 8 keeps the temperature mulch 5, eliminates the oxidation of 4 upper surface of anode carbon block
Under the premise of aluminium keeps the temperature mulch 5, then in aluminium oxide heat preservation 5 and of mulch of 4 upper surface of anode carbon block, 4 surrounding of anode carbon block
Foamed heat insulating cover board 3 is covered on the aluminium oxide heat preservation mulch 5 of surrounding in electrolytic cell 8, is aided with foamed heat insulating sealing and assists small item 6
Reinforce heat preservation.
The aluminium electroloysis continuous prebaked anode cell compound insulation structure, it is characterised in that: include 4 surrounding of anode carbon block and
Surrounding is equipped with aluminium oxide heat preservation mulch 5 in electrolytic cell 8, and aluminium oxide, which is kept the temperature, is equipped with foaming above mulch 5 and anode carbon block 4
Heat-preserving cover plate 3, foamed heat insulating cover board 3 is composed of using the axis of 4 long axis direction of anode carbon block as line of demarcation two major parts, interior
Portion, which has vacant position to match, accommodates hollow perfusion, the hollow perfusion of aluminum water, aluminum water casting-mechanical combined type steel pawl 2.
The thickness and table on anode carbon block 4 short in two pieces of adjacent anode carbon blocks 4 of the aluminium oxide heat preservation mulch 5
Face is concordant.
Gap assists small item 6 to be sealed using foamed heat insulating sealing between the adjacent foamed heat insulating cover board 3.
It is double-layer structure that the foamed heat insulating sealing, which assists small item 6, and lower layer 10-30mm is foaming heatproof cementaceous bottom plate,
Upper layer is foaming heatproof resin body, and foamed heat insulating sealing auxiliary 6 lower layer of little Tiao foaming heatproof cementaceous bottom plate and upper layer are foamed
Heatproof resin body waterglass or heatproof resin bonding.
The foamed heat insulating cover board 3 is double-layer structure, and lower layer 10-30mm is foaming heatproof cementaceous bottom plate, and upper layer is hair
Steep heatproof resin body, foamed heat insulating cover board 3 with a thickness of 200-500mm, the lower layer of foamed heat insulating cover board 3 foams heatproof cement
Matter bottom plate and upper layer foaming heatproof resin body waterglass or heatproof resin bonding.
The hollow perfusion, aluminum water casting-mechanical combined type steel pawl 2 are coated by foamed heat insulating cover board 3, hollow perfusion, aluminium
Guide rod 1 on water casting-mechanical combined type steel pawl 2 stretches out among foamed heat insulating cover board 3.
The hollow perfusion, aluminum water casting-mechanical combined type steel pawl 2, eliminate between existing steel pawl guide rod and steel pawl
The explosion block of steel, aluminum compound structure, heat preservation, heating are not only restricted to the limitation of non-refractory explosion block.
The present invention is in use, specially hollow perfusion, aluminum water casting-mechanical combined type steel pawl 2 are cast and sun using aluminum water
After pole carbon block 4 connects, it is put into electrolytic cell 8 and carries out using the careful surrounding in 4 surrounding of anode carbon block and electrolytic cell 8 is filled out
Aluminium oxide heat preservation mulch 5 is filled, the aluminium oxide heat preservation mulch 5 of surrounding in 4 surrounding of anode carbon block and electrolytic cell 8 is remained, goes
In addition to the aluminium oxide of 4 upper surface of anode carbon block keeps the temperature mulch 5, and the thickness of aluminium oxide heat preservation mulch 5 and adjacent two pieces
Short 4 upper surface of anode carbon block is concordant in anode carbon block 4, new and old to prevent 4 surface of anode carbon block from having heat preservation mulch 5 to reduce
After fastness, reliability when 4 bonding connection of anode carbon block, by two major parts foamed heat insulating cover board 3 with 4 long axis direction of anode carbon block
Axis cover, and 3 inside vacancy of foamed heat insulating cover board matching accommodate it is hollow perfusion, aluminum water it is hollow perfusion, aluminum water casting-machinery
Combined steel pawl 2, hollow perfusion, aluminum water casting-mechanical combined type steel pawl 2 are coated by foamed heat insulating cover board 3, hollow perfusion, aluminium
Guide rod 1 on water casting-mechanical combined type steel pawl 2 stretches out among foamed heat insulating cover board 3；Due to anode carbon block 4 in electrolytic cell 8
Electrolysis amount is different, so 4 height of anode carbon block is different, for foamed heat insulating on adjacent two pieces of anode carbon blocks 4
Gap between cover board 3 accordingly uses foamed heat insulating sealing that small item 6 is assisted to be sealed according to gap size；
It is old anode carbon block 4 when pre-baked anode carbon blocks 4 are consumed to only surplus 300mm on electrolytic cell 8, at this point, unlock anode carbon
Hollow perfusion, aluminum water casting -- mechanical combined type steel pawl 2 on block 4 in charcoal bowl in the aluminum water of fusing, the hollow perfusion of entirety removal,
Aluminum water casting -- mechanical combined type steel pawl 2 connects new anode carbon block 4, and 4 surrounding of old anode carbon block has the aluminium oxide being sintered guarantor
Warm mulch 5 supports old anode carbon block 4 as you were, and can also bear weight, new 4 convenience of anode carbon block is connected, to old anode
New anode carbon block 4 is docked after 4 upper surface of carbon block is cooling, smearing bonding agent bonding is integral between new and old anode carbon block 4 continuously makes
With because 4 surface of anode carbon block does not have aluminium oxide to keep the temperature mulch 5, connect new 4 convenience of anode carbon block, and be bonded securely, can
It leans on, after connecting new anode carbon block 4 and being used continuously, in recovery 4 surrounding aluminium oxide of anode carbon block heat preservation mulch 5, electrolytic cell 8
Surrounding aluminium oxide keeps the temperature mulch 5, then covers foamed heat insulating cover board 3 and the small item 6 of foamed heat insulating sealing auxiliary.
Claims (8)
1. a kind of aluminium electroloysis continuous prebaked anode cell complex heat-preservation method, it is characterised in that: remaining existing pre-baked anode carbon blocks
(4) aluminium oxide of surrounding and electrolytic cell (8) interior surrounding heat preservation mulch (5), eliminates the aluminium oxide of anode carbon block (4) upper surface
Under the premise of keeping the temperature mulch (5), then in the aluminium oxide heat preservation mulch of anode carbon block (4) upper surface, anode carbon block (4) surrounding
(5) and in the aluminium oxide of electrolytic cell (8) interior surrounding heat preservation mulch (5) foamed heat insulating cover board (3) are covered, it is close is aided with foamed heat insulating
Envelope assists small item (6) to reinforce heat preservation.
2. a kind of aluminium electroloysis continuous prebaked anode cell compound insulation structure as described in claim 1, it is characterised in that: include sun
Pole carbon block (4) surrounding and electrolytic cell (8) interior surrounding be equipped with aluminium oxide heat preservation mulch (5), aluminium oxide keep the temperature mulch (5) and
Foamed heat insulating cover board (3) are equipped with above anode carbon block (4), foamed heat insulating cover board (3) is with the axis of anode carbon block (4) long axis direction
It for line of demarcation, is composed of two major parts, inside, which has vacant position to match, accommodates hollow perfusion, the hollow perfusion of aluminum water, aluminum water casting-machine
Tool combined steel pawl (2).
3. aluminium electroloysis continuous prebaked anode cell compound insulation structure according to claim 2, it is characterised in that: the aluminium oxide
The thickness for keeping the temperature mulch (5) is concordant with anode carbon block (4) upper surface short in two pieces of adjacent anode carbon blocks (4).
4. aluminium electroloysis continuous prebaked anode cell compound insulation structure according to claim 2, it is characterised in that: the adjacent hair
Gap assists small item (6) to be sealed using foamed heat insulating sealing between bubble heat-preserving cover plate (3).
5. aluminium electroloysis continuous prebaked anode cell compound insulation structure according to claim 4, it is characterised in that: the foaming is protected
It is double-layer structure that temperature sealing, which assists small item (6), and lower layer 10-30mm is foaming heatproof cementaceous bottom plate, and upper layer is foaming heatproof tree
Rouge main body, foamed heat insulating sealing assist small item (6) lower layer foaming heatproof cementaceous bottom plate and upper layer foaming heatproof resin body to use
Waterglass or heatproof resin bonding.
6. aluminium electroloysis continuous prebaked anode cell compound insulation structure according to claim 2, it is characterised in that: the foaming is protected
Warm cover board (3) is double-layer structure, and lower layer 10-30mm is foaming heatproof cementaceous bottom plate, and upper layer is foaming heatproof resin body, hair
Steep heat-preserving cover plate (3) with a thickness of 200-500mm, lower layer's foaming heatproof cementaceous bottom plate of foamed heat insulating cover board (3) and upper layer
Foaming heatproof resin body waterglass or heatproof resin bonding.
7. aluminium electroloysis continuous prebaked anode cell compound insulation structure according to claim 2, it is characterised in that: the hollow filling
Note, aluminum water casting-mechanical combined type steel pawl (2) are coated by foamed heat insulating cover board (3), and hollow perfusion, aluminum water casting-machinery are compound
Guide rod (1) on formula steel pawl (2) stretches out among foamed heat insulating cover board (3).
8. aluminium electroloysis continuous prebaked anode cell compound insulation structure according to claim 2, it is characterised in that: the hollow filling
Note, aluminum water casting-mechanical combined type steel pawl (2), eliminate steel between existing steel pawl guide rod and steel pawl, aluminum compound structure it is quick-fried
Fried block, heat preservation, heating are not only restricted to the limitation of non-refractory explosion block.
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| CN112831803A (en) * | 2021-01-05 | 2021-05-25 | 中南大学 | Double-layer closed aluminum electrolytic cell and upper heat-insulating cover thereof |
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