CN102976774B - Heat-insulating and sealing material for inert-anode aluminum electrolysis cell and preparation method thereof - Google Patents
Heat-insulating and sealing material for inert-anode aluminum electrolysis cell and preparation method thereof Download PDFInfo
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- CN102976774B CN102976774B CN201210483901.1A CN201210483901A CN102976774B CN 102976774 B CN102976774 B CN 102976774B CN 201210483901 A CN201210483901 A CN 201210483901A CN 102976774 B CN102976774 B CN 102976774B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 239000003566 sealing material Substances 0.000 title claims abstract description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000005868 electrolysis reaction Methods 0.000 title abstract description 6
- 239000011810 insulating material Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 145
- 239000000843 powder Substances 0.000 claims abstract description 63
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 51
- 238000005266 casting Methods 0.000 claims abstract description 50
- 239000010431 corundum Substances 0.000 claims abstract description 50
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims abstract description 39
- 230000007704 transition Effects 0.000 claims abstract description 34
- 239000003595 mist Substances 0.000 claims description 73
- 239000004411 aluminium Substances 0.000 claims description 56
- 239000002245 particle Substances 0.000 claims description 53
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 48
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 43
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 42
- 229910052863 mullite Inorganic materials 0.000 claims description 42
- 230000002194 synthesizing effect Effects 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 35
- 238000005498 polishing Methods 0.000 claims description 26
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 24
- 239000004568 cement Substances 0.000 claims description 24
- 238000001354 calcination Methods 0.000 claims description 22
- 239000011029 spinel Substances 0.000 claims description 22
- 229910052596 spinel Inorganic materials 0.000 claims description 22
- 238000005245 sintering Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 18
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 239000008399 tap water Substances 0.000 claims description 8
- 235000020679 tap water Nutrition 0.000 claims description 8
- 239000012774 insulation material Substances 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 6
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000011236 particulate material Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000005056 compaction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 30
- 238000012360 testing method Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010443 kyanite Substances 0.000 description 1
- 229910052850 kyanite Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- BEDFIBPNPHRGDO-UHFFFAOYSA-N yttrium;hydrate Chemical compound O.[Y] BEDFIBPNPHRGDO-UHFFFAOYSA-N 0.000 description 1
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- Electrolytic Production Of Metals (AREA)
Abstract
The invention relates to a heat-insulating and sealing material for an inert-anode aluminum electrolysis cell and a preparation method thereof. The material is characterized by comprising a dense layer, a transition layer and a heat insulating layer which are sequentially integrated, wherein the dense layer is made from a corundum casting material, the transition layer is made from slurry which is prepared from micro powder and slurry liquid, and the heat insulating layer is made from a lightweight casting material. According to the heat-insulating and sealing material for the inert-anode aluminum electrolysis cell, disclosed by the invention, the advantages of compaction and corrosion resistance of the corundum casting material and heat insulation of the lightweight casting material are integrated, the problem of cracking caused by the fact that the expansion coefficients of the two materials are not matched under a high temperature is solved, and therefore the material can be used for sealing and heat insulating for the inert-anode aluminum electrolysis cell very well.
Description
Technical field
The present invention relates to the insulation of a kind of inert anode aluminium cell and sealing material and preparation method thereof.
Background technology
Existing aluminium industry is that the prebaked cell for aluminum-reduction take carbon anode as principal character carries out former aluminum smelting technology.This pre-baked carbon anode aluminium cell is ripe and obtained very large development and progress in technology and technique, becomes the main flow grooved of aluminum current industry.But carbon anode aluminum smelting technology technology still exists its intrinsic shortcoming: high-quality charcoal element consumes larger, need to constantly supplement and change carbon anode, causes huge pressure to resource; Discharge a large amount of CO
2and fluorocarbon etc., cause serious pollution to environment; Production process high energy consumption.Although direct current consumption can be reduced to 13000kWh/t(Al) below, its capacity usage ratio still only has 50% left and right, has also brought white elephant to electric power resource.
What at present, Aluminum Industry in The World was generally admitted is to adopt inert anode aluminum electrolyzation technology to solve the negative issue that carbon anode electrolysis of aluminum brings.Inert anode consumes hardly, and the replacement cycle is long, produces more stable; What production process was discharged is oxygen, and can not discharge CO
2and fluorocarbon; And likely realize varying load and produce, be conducive to balance electrical network peak-valley electric energy.But due to the singularity of inert anode aluminum electrolyzation technology, industrialization inert anode aluminium cell need to be used more anti-corrosion lagging material and be incubated and seal, to reduce the heat lost by radiation of aluminium cell, reach the object that reduces energy consumption.
The theoretical lowest energy consumption of inert anode aluminium cell is 9240kWh/t(Al), higher than traditional carbon anode aluminium cell.Tradition carbon anode aluminum electrolysis cell upper part is to make ionogen upper surface crust by heat radiation, and on crust, adds one deck aluminum oxide and realize.This mode heat dissipation capacity is very large, finally causes aluminium cell capacity usage ratio to be difficult to improve (50% left and right).If the electrolyte levels of inert anode aluminium cell top adopts special fire-resistant corrosion-resistant material to be incubated and to seal, do not allow ionogen naturally crust, make electrolyzer entirety be " thermal-insulating type " groove, total heat lost by radiation meeting reduces greatly.Add the advantage (as: the electrode reaction area in unit volume is large, and pole span is low) in inert anode aluminium cell structure design, the comprehensive energy consumption that can make inert anode aluminium cell is not higher than even lower than existing pre-baked carbon anode aluminium cell.
Ionogen top to inert anode electrolyzer is incubated and seals, and just needs material used can resist the erosion of ionogen atmosphere.For ionogen atmosphere corrosion characteristic, and the many experimental results that in the past done in conjunction with us, find to adopt alumina content or the higher material of spinel content, can within the relatively long time, resist the corrosion of ionogen atmosphere.But material is had to following requirement: (1) has higher purity and density; (2) foreign matter content is few, particularly the content of silicon (Si), iron (Fe) etc.; (3) easy construction, is convenient to be made into shape and the special goods of size, particularly becomes large size goods; (4) there is enough intensity and thermal shock resistance; (5) there is relatively low cost.
For these features of inert anode aluminium cell, and requirement to material, inventor herein is in patent 201110166652.9, " fire-resistant corrosion-resistant material of inert anode aluminium cell indefinite form and preparation method thereof " proposed, this material can perform well in inert anode aluminium cell, the erosion of opposing ionogen atmosphere, but its heat-insulating property or heat conductivility are not set forth.
The patent No. is that 200810228234 Chinese patent application discloses a kind of alumina bubble lightweight insulating refractory casting material.Described in this patent, it has good heat-insulating property (600 ℃, thermal conductivity is less than 0.39).But its silicone content is higher, be up to 10%, so it can not be directly used in the erosion of opposing ionogen atmosphere.
The patent No. is that the Chinese patent of CN200610018089.X discloses a kind of permeable fireproof materials for aluminium refining and preparation method thereof.Described in this patent: its material is made up of sintering synthesis of densified calcium hexaluminate material, plate diamond spar, fused white corundum, soft clay, quartz, kyanite, chromoxide green etc., there is the ability that good anti-aluminium liquid infiltrates.But this patent does not illustrate the erosional competency of this material opposing ionogen atmosphere, and the prepared material of this patent is for the also not yet explanation of heat insulation effect of aluminium cell.
The patent No. is that the Chinese patent application of CN200410013257.7 discloses a kind of magnalium light thermal insulation fire-resistant material and preparation method thereof.The material that this patent is prepared, because the main body of material is magnesite powder and alumine powder, intensity is not high, and alumine powder can be introduced a large amount of element silicons.
Application number is US 4,481,052 United States Patent (USP) Method of making refractory hard metal containing tiles for aluminum cell cathodes, this patent has mainly been told about the parts for fixing wenable cathode on a kind of aluminium cell with self-baking anode, these parts are made up of hard refractory materials, and be used for reducing electrical loss increases the work-ing life of negative electrode simultaneously.Because the material of these parts is directly in the face of the liquid level of aluminium electrolyte, so material corrosion-resistant required low.
Above all patent Introductions or disclosed material are all the materials of homogeneous, or are fine and close mould material, or are the mould material of light thermal-insulation type.Its thermal conductivity of compactness mould material can be relatively large, and light thermal-insulation type often its purity, intensity are difficult to reach requirement.If fine and close mould material and lightening casting material are simply superimposed, can ftracture because of the unmatched problem of the coefficient of expansion under high temperature between the two.In open source literature, fine and close mould material and lightening casting material are not made to the technology of composite gradient material.
Summary of the invention
Object of the present invention is exactly the deficiency existing for above-mentioned prior art, provide one to be applied to inert anode electrolyzer top, can resist for a long time the erosion of ionogen atmosphere, have the inert anode aluminium cell insulation and sealing material and preparation method thereof of enough good heat insulation effect.
The object of the invention is to be achieved through the following technical solutions.
A kind of inert anode aluminium cell, with being incubated and sealing material, is characterized in that this material becames one the tight zone that is included as corundum pouring material successively, makes transition layer for the slurry of micro mist and slurries preparation, is the thermal insulation layer of lightening casting material.
A kind of inert anode aluminium cell of the present invention, with being incubated and sealing material, is characterized in that described corundum pouring material is the one of selecting in pure corundum pouring material, corundum-magnesium-aluminium spinel matter mould material.
A kind of inert anode aluminium cell of the present invention, with being incubated and sealing material, is characterized in that the Al in described corundum-magnesium-aluminium spinel matter mould material
2o
3be greater than 95%, SiO with MgO gross weight content
2content is less than 0.1%, CaO content and is less than 1.5%, Na
2o content is less than 0.5%, Fe
2o
3content is less than 0.1%.
A kind of inert anode aluminium cell of the present invention is with being incubated and sealing material, lightening casting material described in it is characterized in that selects hollow ball, mullite synthesizing as aggregate, adopt sintering plate corundum fine powder, magnesium-aluminium spinel fine powder, multimodal Calcined polishing aluminum oxide micro mist, ρ-alumina powder, dispersed alumina powder and pure calcium aluminate cement as matrix, evenly mixture forms.
A kind of inert anode aluminium cell of the present invention, with being incubated and sealing material, is characterized in that in described lightening casting material, aggregate part by weight is 68%-72%; The part by weight that matrix accounts for is 28%-32%; Surplus is to do the meal of matrix.
A kind of inert anode aluminium cell of the present invention is with being incubated and sealing material, and the hollow ball part by weight in the aggregate of the lightening casting material described in it is characterized in that is 10%-35%; Its material is selected from alumina hollow ball, floats one or both combinations in pearl.
A kind of inert anode aluminium cell insulation and sealing material of the present invention, the alumina hollow ball particle diameter 0-3mm in the aggregate of the lightening casting material described in it is characterized in that, Al
2o
3content>=90wt%; Described bead footpath 0-3mm, the Al of floating
2o
3content>=35wt%.
A kind of inert anode aluminium cell of the present invention is with being incubated and sealing material, and the mullite synthesizing particle in the aggregate of the lightening casting material described in it is characterized in that has different size-grade distribution; The shared weight ratio of mullite synthesizing pellet that wherein particle diameter is 3-6mm is 15%-26%; Particle diameter is that the shared weight ratio of the mullite synthesizing particulate material of 1-3mm is 12%-20%; Particle diameter is that the shared weight ratio of the mullite synthesizing particulate material of 0-1mm is 10%-16%.Al in described mullite synthesizing particle
2o
3content>=42 wt%.
A kind of inert anode aluminium cell of the present invention, with being incubated and sealing material, is characterized in that the matrix components of described lightening casting material comprises: particle diameter≤0.045mm sintering plate corundum fine powder 8%-12%; Magnesium-aluminium spinel fine powder 0%-5%; Multimodal Calcined polishing aluminum oxide micro mist 5%-12%; Active ρ-Al2O3 micro mist 0%-7%; Dispersed alumina powder 1%; Pure calcium aluminate cement 2%-6%.
A kind of inert anode aluminium cell of the present invention, with being incubated and sealing material, is characterized in that in the matrix components of described lightening casting material Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, magnesium-aluminium spinel fine powder Al
2o
3content>=74wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, active ρ-Al
2o
3the Al of micro mist
2o
3content 99.8wt%(removes after igloss), the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of described multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Described active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
A kind of inert anode aluminium cell of the present invention, with being incubated and sealing material, is characterized in that described transition layer slurry is formulated by micro mist and slurries, and wherein micro mist quality percentage composition accounts for 65%-75%, and slurries quality percentage composition accounts for 25%-35%; Described micro mist is selected from one or more combinations in zirconium white, calcining α-aluminum oxide, yttrium oxide; Described its median size of calcining α-aluminum oxide micro mist is less than 0.02mm; Described slurries are selected from the one in water, phosphate aqueous solution, phosphate dihydrogen aluminum solution.
A kind of inert anode aluminium cell of the present invention, with being incubated and sealing material, is characterized in that adding in described transition layer slurry the fiber of 0%-0.2%, to increase the toughness of transition layer; Described fiber is selected from one or more combinations in charcoal fiber, silicon carbide fiber, sapphire whisker; Described Fibre diameter is less than 100um, and length is less than 1mm.
A kind of inert anode aluminium cell is the preparation method with sealing material with insulation, it is characterized in that its preparation process first by as the lightening casting material of thermal insulation layer build in mould build, jolt ramming, after it produces initial set, transition layer slurry on its external coating, after slurry is brushed evenly, then the corundum pouring material as tight zone is built building in mould, use transition layer slurry, tight zone mould material and thermal insulation layer mould material are combined into one, common maintenance moulding.
A kind of inert anode aluminium cell of the present invention is the preparation method with sealing material with insulation, and it is characterized in that being coated with the thickness that brushes transition layer pulp layer is 1-2mm.
A kind of inert anode aluminium cell of the present invention is the preparation method with sealing material with insulation, it is characterized in that its preparation process is that insulated pouring material is first built on the one side of building mould, build the width that is first separated out insulated pouring material in mould by dividing plate, build complete and produce after initial set until insulated pouring material, dismantle and build the dividing plate in mould, the thick transition layer slurry of 1-2mm on the end face brush of insulation pouring material, after slurry is brushed evenly, then has built corundum pouring material at the other side of building mould.
A kind of inert anode aluminium cell of the present invention is the preparation method with sealing material with insulation, it is characterized in that dense layer thickness is more than or equal to 20mm, and insulation is thickness and is more than or equal to 20mm, and transition region thickness is less than or equal to 2mm;
A kind of inert anode aluminium cell of the present invention is the preparation method with sealing material with insulation, it is characterized in that mould material is in the time that construction is stirred, with clean tap water or pure water; Water temperature is greater than 5 ℃ and is less than 25 ℃, and the envrionment temperature of working-yard is greater than 5 ℃ and is less than 25 ℃; After building, maintenance 24-48 hours, then the demoulding carry out drying and processing.
Insulation and sealing material and preparation method thereof for a kind of inert anode aluminium cell of the present invention, select corundum pouring material to make tight zone, and lightening casting material is made thermal insulation layer, and the transition layer slurry of micro mist and slurries preparation is made transition layer.In the time of construction, three layers are built and become one, maintenance moulding together.When use, tight zone is in bottom, and opposing ionogen atmosphere corrodes; Thermal insulation layer plays insulation effect up; Transition layer is in centre, alleviates the upper and lower two-layer cracking causing because of expansion coefficient difference.
A kind of inert anode aluminium cell of the present invention is with being incubated and sealing material, merged the advantage of corundum pouring material densification, anticorrosive and light thermal-insulation mould material insulation, solve again between bi-material that the coefficient of expansion under high temperature does not mate and the problem that ftractures can be good at inert anode aluminium cell to seal and be incubated.
Embodiment
Below in conjunction with embodiment, describe the present invention in detail:
Embodiment 1
(1) do tight zone with the pure corundum pouring material of self-control.Its comprehensive composition: Al
2o
3the total percentage composition of quality is greater than 98wt%, SiO
2content is less than 0.05wt%, and CaO content is less than 1.5wt%, Na
2o content is less than 0.5wt%, Fe
2o
3content is less than 0.1wt%.
(2) lightening casting material does aggregate with alumina hollow ball and mullite synthesizing particle, and each material is by following weight preparation.
Alumina hollow ball particle diameter 0-3mm 10%;
Mullite synthesizing grain diameter 3-5mm 26%;
Mullite synthesizing grain diameter 1-3mm 20%;
Mullite synthesizing grain diameter 0-1mm 16%;
Sintering plate corundum fine powder particle diameter≤0.045mm 10%;
Magnesium-aluminium spinel fine powder particle diameter≤0.045mm 5%;
Multimodal Calcined polishing aluminum oxide micro mist 5%;
Active ρ alumina powder 2%;
Dispersed alumina powder 1%;
Pure calcium aluminate cement 5%;
Wherein, Al in alumina hollow ball
2o
3content>=90wt%, Al in lightweight mullite synthesizing
2o
3content>=42 wt%, Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, magnesium-aluminium spinel fine powder Al
2o
3content>=74wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, active ρ-Al
2o
3the Al of micro mist
2o
3content 99.8wt%(removes after igloss), the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
(3) with zirconium white micro mist and water preparation transition layer slurry, prepare by following part by weight:
Zirconium white micro mist median size≤0.02mm 65%;
Pure water 35%;
(4) while building, first lightening casting material is cast in to the bottom of building mould, paves jolt ramming, after initial set, (30min left and right), at the thick transition layer slurry of its surface brush 1-2mm, then above the corundum castable being stirred is cast in, paves jolt ramming.After its initial set (about 40min), cover with plastics film, and at the indoor maintenance 48h of 20 ℃.After the demoulding, dry 48h for 110 ℃.
Lightening casting material, in the time stirring, first by aglite water-wet, then adds pure calcium aluminate cement and part powder, after stirring, more remaining powder and water is added to stirring, to avoid light material floating.
Mould material is in the time stirring, and with clean tap water, 18 ℃ of water temperatures, stir 22 ℃ of envrionment temperatures.Wherein lightening casting material water consumption is 5.2wt%; Corundum castable water consumption is 4.6wt%.
(5) by the formulated complex gradient mould material of this example, make some standards and inert anode electrolyzer goods, use for analyzing and testing.Analyzing and testing the results are shown in following table.
Embodiment 2
(1) do tight zone by self-control corundum-magnesium-aluminium spinel matter mould material.Its comprehensive composition: Al
2o
3the total percentage composition of+MgO quality is greater than 98wt%, SiO
2content is less than 0.05wt%, and CaO content is less than 1.5wt%, Na
2o content is less than 0.5wt%, Fe
2o
3content is less than 0.1wt%.
(2) lightening casting material does aggregate with alumina hollow ball and mullite synthesizing particle, and each material is by following weight preparation.
Alumina hollow ball particle diameter 0-3mm 35%;
Mullite synthesizing grain diameter 3-5mm 15%;
Mullite synthesizing grain diameter 1-3mm 12%;
Mullite synthesizing grain diameter 0-1mm 10%;
Sintering plate corundum fine powder particle diameter≤0.045mm 8%;
Multimodal Calcined polishing aluminum oxide micro mist 10%;
Active ρ alumina powder 7%;
Dispersed alumina powder 1%;
Pure calcium aluminate cement 2%;
Wherein, Al in alumina hollow ball
2o
3content>=90wt%, Al in mullite synthesizing
2o
3content>=42 wt%, Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, active ρ-Al
2o
3the Al of micro mist
2o
3content 99.8wt%(removes after igloss), the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
(3) with calcining α-aluminum oxide micro mist, carbon fiber and 30% phosphoric acid solution preparation transition layer slurry, prepare by following part by weight:
Calcining α-aluminum oxide micro mist median size≤0.0012mm 74.8%;
Charcoal Fibre diameter is less than 0.01mm length≤1mm 0.2%;
30% phosphoric acid solution 25%;
(4) while building, first lightening casting material is cast in to the bottom of building mould, paves jolt ramming, after initial set, (30min left and right), at the thick transition layer slurry of its surface brush 1-2mm, then above the corundum castable being stirred is cast in, paves jolt ramming.After its initial set (about 40min), cover with plastics film, and at the indoor maintenance 48h of 20 ℃.
Lightening casting material, in the time stirring, first by aglite water-wet, then adds pure calcium aluminate cement and part powder, after stirring, more remaining powder and water is added to stirring, to avoid light material floating.
Mould material is in the time stirring, and with clean tap water, 18 ℃ of water temperatures, stir 22 ℃ of envrionment temperatures.Wherein lightening casting material water consumption is 7.2wt%; Corundum castable water consumption is 4.8wt%.
(5) by the formulated complex gradient mould material of this example, make some standards and inert anode electrolyzer goods, use for analyzing and testing.Analyzing and testing the results are shown in following table.
Embodiment 3
(1) do tight zone with the pure corundum pouring material of self-control.Its comprehensive composition: Al
2o
3the total percentage composition of quality is greater than 98wt%, SiO
2content is less than 0.05wt%, and CaO content is less than 1.5wt%, Na
2o content is less than 0.5wt%, Fe
2o
3content is less than 0.1wt%.
(2) alumina hollow ball for lightening casting material, float pearl and mullite synthesizing particle does aggregate, each material is by following weight preparation.
Alumina hollow ball particle diameter 0-3mm 18%;
Float bead footpath 0-3mm 5%
Mullite synthesizing grain diameter 3-5mm 20%;
Mullite synthesizing grain diameter 1-3mm 14%;
Mullite synthesizing grain diameter 0-1mm 12%;
Sintering plate corundum fine powder particle diameter≤0.045mm 10%;
Magnesium-aluminium spinel fine powder particle diameter≤0.045mm 2%;
Multimodal Calcined polishing aluminum oxide micro mist 12%;
Dispersed alumina powder 1%;
Pure calcium aluminate cement 6%;
Wherein, Al in alumina hollow ball
2o
3content>=90wt%, floats Al in bead footpath
2o
3content>=35wt%.Al in mullite synthesizing
2o
3content>=42 wt%, Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, magnesium-aluminium spinel Al
2o
3content>=74wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
(3) with zirconium white micro mist, calcining α-aluminum oxide micro mist and water preparation transition layer slurry, prepare by following part by weight:
Zirconium white micro mist median size≤0.02mm 10%;
Calcining α-aluminum oxide micro mist median size≤0.0012mm 60%;
Phosphate dihydrogen aluminum solution 30%;
(4) while building, first lightening casting material is cast in to the bottom of building mould, paves jolt ramming, after initial set, (30min left and right), at the thick transition layer slurry of its surface brush 1-2mm, then above the corundum castable being stirred is cast in, paves jolt ramming.After its initial set (about 40min), cover with plastics film, and at the indoor maintenance 48h of 20 ℃.
Lightening casting material, in the time stirring, first by aglite water-wet, then adds pure calcium aluminate cement and part powder, after stirring, more remaining powder and water is added to stirring, to avoid light material floating.
Mould material is in the time stirring, and with clean tap water, 18 ℃ of water temperatures, stir 22 ℃ of envrionment temperatures.Wherein lightening casting material water consumption is 5.8wt%; Corundum castable water consumption is 4.6wt%.
(5) by the formulated complex gradient mould material of this example, make some standards and inert anode electrolyzer goods, use for analyzing and testing.Analyzing and testing the results are shown in following table.
Embodiment 4
(1) do tight zone with the pure corundum pouring material of self-control.Its comprehensive composition: Al
2o
3the total percentage composition of quality is greater than 98wt%, SiO
2content is less than 0.05wt%, and CaO content is less than 1.5wt%, Na
2o content is less than 0.5wt%, Fe
2o
3content is less than 0.1wt%.
(2) alumina hollow ball for lightening casting material, float pearl and lightweight mullite synthesizing particle does aggregate, each material is by following weight preparation.
Alumina hollow ball particle diameter 0-3mm 15%;
Float bead footpath 0-3mm 5%
Lightweight mullite synthesizing grain diameter 3-5mm 22%;
Lightweight mullite synthesizing grain diameter 1-3mm 14%;
Lightweight mullite synthesizing grain diameter 0-1mm 12%;
Sintering plate corundum fine powder particle diameter≤0.045mm 12%;
Magnesium-aluminium spinel fine powder particle diameter≤0.045mm 2%;
Multimodal Calcined polishing aluminum oxide micro mist 12%;
Active ρ alumina powder 1%;
Dispersed alumina powder 1%;
Pure calcium aluminate cement 4%;
Wherein, Al in alumina hollow ball
2o
3content>=90wt%, floats Al in bead footpath
2o
3content>=35wt%.Al in mullite synthesizing
2o
3content>=42 wt%, Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, magnesium-aluminium spinel Al
2o
3content>=74wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, active ρ-Al
2o
3the Al of micro mist
2o
3content 99.8wt%(removes after igloss), the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
(3) with zirconium white micro mist, calcining α-aluminum oxide micro mist, yttrium oxide and water preparation transition layer slurry, prepare by following part by weight:
Zirconium white micro mist median size≤0.05mm 8%;
Calcining α-aluminum oxide micro mist median size≤0.0012mm 56%;
Yttrium oxide micro mist median size≤0.05mm 1%;
Pure water 35%;
(4) while building, first lightening casting material is cast in to the bottom of building mould, paves jolt ramming, after initial set, (30min left and right), at the thick transition layer slurry of its surface brush 1-2mm, then above the corundum castable being stirred is cast in, paves jolt ramming.After its initial set (about 40min), cover with plastics film, and at the indoor maintenance 48h of 20 ℃.
Lightening casting material, in the time stirring, first by aglite water-wet, then adds pure calcium aluminate cement and part powder, after stirring, more remaining powder and water is added to stirring, to avoid light material floating.
Mould material is in the time stirring, and with clean tap water, 18 ℃ of water temperatures, stir 22 ℃ of envrionment temperatures.Wherein lightening casting material water consumption is 5.4wt%; Corundum castable water consumption is 4.6wt%.
(5) by the formulated complex gradient mould material of this example, make some standards and inert anode electrolyzer goods, use for analyzing and testing.Analyzing and testing the results are shown in following table.
Embodiment 5
(1) do tight zone with the pure corundum pouring material of self-control.Its comprehensive composition: Al
2o
3the total percentage composition of quality is greater than 98wt%, SiO
2content is less than 0.05wt%, and CaO content is less than 1.5wt%, Na
2o content is less than 0.5wt%, Fe
2o
3content is less than 0.1wt%.
(2) lightening casting material does aggregate with alumina hollow ball and mullite synthesizing particle, and each material is by following weight preparation.
Alumina hollow ball particle diameter 0-3mm 20%;
Mullite synthesizing grain diameter 3-5mm 22%;
Mullite synthesizing grain diameter 1-3mm 14%;
Mullite synthesizing grain diameter 0-1mm 12%;
Sintering plate corundum fine powder particle diameter≤0.045mm 12%;
Magnesium-aluminium spinel fine powder particle diameter≤0.045mm 2%;
Multimodal Calcined polishing aluminum oxide micro mist 12%;
Active ρ alumina powder 1%;
Dispersed alumina powder 1%;
Pure calcium aluminate cement 4%;
Wherein, Al in alumina hollow ball
2o
3content>=90wt%, Al in mullite synthesizing
2o
3content>=42 wt%, Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, magnesium-aluminium spinel Al
2o
3content>=74wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, active ρ-Al
2o
3the Al of micro mist
2o
3content 99.8wt%(removes after igloss), the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
(3) with calcining α-aluminum oxide micro mist, yttrium oxide micro mist and water preparation transition layer slurry, prepare by following part by weight:
Calcining α-aluminum oxide micro mist median size≤0.0012mm 64%;
Yttrium oxide micro mist median size≤0.05mm 1%;
Pure water 35%;
(4) while building, first lightening casting material is cast in to the bottom of building mould, paves jolt ramming, after initial set, (30min left and right), at the thick transition layer slurry of its surface brush 1-2mm, then above the corundum castable being stirred is cast in, paves jolt ramming.After its initial set (about 40min), cover with plastics film, and at the indoor maintenance 48h of 20 ℃.
Lightening casting material, in the time stirring, first by aglite water-wet, then adds pure calcium aluminate cement and part powder, after stirring, more remaining powder and water is added to stirring, to avoid light material floating.
Mould material is in the time stirring, and with clean tap water, 18 ℃ of water temperatures, stir 22 ℃ of envrionment temperatures.Wherein lightening casting material water consumption is 5.4wt%; Corundum castable water consumption is 4.6wt%.
(5) by the formulated complex gradient mould material of this example, make some standards and inert anode electrolyzer goods, use for analyzing and testing.Analyzing and testing the results are shown in following table.
Embodiment 6
(1) do tight zone with the pure corundum pouring material of self-control.Its comprehensive composition: Al
2o
3the total percentage composition of quality is greater than 98wt%, SiO
2content is less than 0.05wt%, and CaO content is less than 1.5wt%, Na
2o content is less than 0.5wt%, Fe
2o
3content is less than 0.1wt%.
(2) lightening casting material does aggregate with alumina hollow ball and mullite synthesizing particle, and each material is by following weight preparation.
Alumina hollow ball particle diameter 0-3mm 18%;
Mullite synthesizing grain diameter 3-5mm 24%;
Mullite synthesizing grain diameter 1-3mm 14%;
Mullite synthesizing grain diameter 0-1mm 12%;
Sintering plate corundum fine powder particle diameter≤0.045mm 10%;
Magnesium-aluminium spinel fine powder particle diameter≤0.045mm 2%;
Multimodal Calcined polishing aluminum oxide micro mist 12%;
Active ρ alumina powder 1%;
Dispersed alumina powder 1%;
Pure calcium aluminate cement 6%;
Wherein, Al in alumina hollow ball
2o
3content>=90wt%, Al in mullite synthesizing
2o
3content>=42 wt%, Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, magnesium-aluminium spinel Al
2o
3content>=74wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, active ρ-Al
2o
3the Al of micro mist
2o
3content 99.8wt%(removes after igloss), the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
(3) with calcining α-aluminum oxide micro mist, sapphire whisker and water preparation transition layer slurry, prepare by following part by weight:
Calcining α-aluminum oxide micro mist median size≤0.0012mm 64.8%;
Polycrystalline alumina fiber diameter is less than 0.01mm length≤1mm 0.2%;
Pure water 35%;
(4) while building, first lightening casting material is cast in to the bottom of building mould, paves jolt ramming, after initial set, (30min left and right), at the thick transition layer slurry of its surface brush 1-2mm, then above the corundum castable being stirred is cast in, paves jolt ramming.After its initial set (about 40min), cover with plastics film, and at the indoor maintenance 48h of 20 ℃.
Lightening casting material, in the time stirring, first by aglite water-wet, then adds pure calcium aluminate cement and part powder, after stirring, more remaining powder and water is added to stirring, to avoid light material floating.
Mould material is in the time stirring, and with clean tap water, 18 ℃ of water temperatures, stir 22 ℃ of envrionment temperatures.Wherein lightening casting material water consumption is 5.4wt%; Corundum castable water consumption is 4.6wt%.
(5) by the formulated complex gradient mould material of this example, make some standards and inert anode electrolyzer goods, use for analyzing and testing.Analyzing and testing the results are shown in following table.
Claims (9)
1. insulation and a sealing material for inert anode aluminium cell, is characterized in that this material becames one the tight zone that is included as corundum pouring material successively, makes transition layer for the slurry of micro mist and slurries preparation, is the thermal insulation layer of lightening casting material; Described transition layer slurry is formulated by micro mist and slurries, and wherein micro mist quality percentage composition accounts for 65%-75%, and slurries quality percentage composition accounts for 25%-35%; Described micro mist is selected from one or more combinations in zirconium white, calcining α-aluminum oxide, yttrium oxide; Described its median size of calcining α-aluminum oxide micro mist is less than 0.02mm; Described slurries are selected from the one in water, phosphate aqueous solution, phosphate dihydrogen aluminum solution.
2. according to insulation and the sealing material for a kind of inert anode aluminium cell of claim 1, it is characterized in that described corundum pouring material is the one of selecting in pure corundum pouring material, corundum-magnesium-aluminium spinel matter mould material; Al in described corundum-magnesium-aluminium spinel matter mould material
2o
3be greater than 95%, SiO with MgO gross weight content
2content is less than 0.1%, CaO content and is less than 1.5%, Na
2o content is less than 0.5%, Fe
2o
3content is less than 0.1%.
3. according to insulation and the sealing material for a kind of inert anode aluminium cell of claim 1, lightening casting material described in it is characterized in that selects hollow ball, mullite synthesizing as aggregate, adopt sintering plate corundum fine powder, magnesium-aluminium spinel fine powder, multimodal Calcined polishing aluminum oxide micro mist, ρ-alumina powder, dispersed alumina powder and pure calcium aluminate cement as matrix, evenly mixture forms; In described lightening casting material, aggregate part by weight is 68%-72%; The part by weight that matrix accounts for is 28%-32%; Hollow ball part by weight in the aggregate of described lightening casting material is 10%-35%; Its material is selected from alumina hollow ball, floats one or both combinations in pearl; Alumina hollow ball particle diameter 0-3mm in the aggregate of described lightening casting material, Al
2o
3content>=90wt%; Described bead footpath 0-3mm, the Al of floating
2o
3content>=35wt%.
4. according to insulation and the sealing material for a kind of inert anode aluminium cell of claim 3, the mullite synthesizing particle in the aggregate of the lightening casting material described in it is characterized in that has different size-grade distribution; The shared weight ratio of mullite synthesizing pellet that wherein particle diameter is 3-6mm is 15%-26%; Particle diameter is that the shared weight ratio of the mullite synthesizing particulate material of 1-3mm is 12%-20%; Particle diameter is that the shared weight ratio of the mullite synthesizing particulate material of 0-1mm is 10%-16%; Al in described mullite synthesizing particle
2o
3content>=42 wt%.
5. according to insulation and the sealing material for a kind of inert anode aluminium cell of claim 3, it is characterized in that the matrix components of described lightening casting material comprises: particle diameter≤0.045mm sintering plate corundum fine powder 8%-12%; Magnesium-aluminium spinel fine powder 0%-5%; Multimodal Calcined polishing aluminum oxide micro mist 5%-12%; Active ρ-Al
2o
3micro mist 0%-7%; Dispersed alumina powder 1%; Pure calcium aluminate cement 2%-6%; In the matrix components of described lightening casting material, Al in sintering plate corundum fine powder
2o
3content>=99.5 wt%, magnesium-aluminium spinel fine powder Al
2o
3content>=74wt%, the Al of multimodal Calcined polishing aluminum oxide micro mist
2o
3content>=99.6wt%, active ρ-Al
2o
3the Al of micro mist
2o
3content 99.8wt%, the Al of dispersed aluminum oxide
2o
3content 80wt%, the Al of pure calcium aluminate cement
2o
3content 73wt%; The mean particle size of described multimodal Calcined polishing aluminum oxide micro mist is for being less than 0.02mm; Described active ρ-Al
2o
3the mean particle size of micro mist, for being less than 0.005mm, adopts special method for calcinating to activate, and has good hydrophilic active.
6. according to insulation and the sealing material for a kind of inert anode aluminium cell of claim 1, it is characterized in that adding in described transition layer slurry the fiber of 0%-0.2%, to increase the toughness of transition layer; Described fiber is selected from one or more combinations in charcoal fiber, silicon carbide fiber, sapphire whisker; Described Fibre diameter is less than 100um, and length is less than 1mm.
7. the preparation method of insulation and sealing material for a kind of inert anode aluminium cell according to claim 1, it is characterized in that its preparation process first by as the lightening casting material of thermal insulation layer build in mould build, jolt ramming, after it produces initial set, transition layer slurry on its external coating, the thickness that painting brushes transition layer pulp layer is 1-2mm, after slurry is brushed evenly, to build building in mould as the corundum pouring material of tight zone again, use transition layer slurry, tight zone mould material and thermal insulation layer mould material are combined into one, common maintenance moulding.
8. the preparation method with insulation and sealing material according to a kind of inert anode aluminium cell of claim 7, it is characterized in that its preparation process is that insulated pouring material is first built on the one side of building mould, build the width that is first separated out insulated pouring material in mould by dividing plate, build complete and produce after initial set until insulated pouring material, dismantle and build the dividing plate in mould, the thick transition layer slurry of 1-2mm on the end face brush of insulation pouring material, after slurry is brushed evenly, then has built corundum pouring material at the other side of building mould.
9. the preparation method with insulation and sealing material according to a kind of inert anode aluminium cell of claim 7, is characterized in that mould material is in the time that construction is stirred, with clean tap water or pure water; Water temperature is greater than 5 ℃ and is less than 25 ℃, and the envrionment temperature of working-yard is greater than 5 ℃ and is less than 25 ℃; After building, maintenance 24-48 hours, then the demoulding carry out drying and processing.
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