CN103789794A - Aluminum ash positive electrode steel claw protection tile and preparation method thereof - Google Patents
Aluminum ash positive electrode steel claw protection tile and preparation method thereof Download PDFInfo
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- CN103789794A CN103789794A CN201410017089.2A CN201410017089A CN103789794A CN 103789794 A CN103789794 A CN 103789794A CN 201410017089 A CN201410017089 A CN 201410017089A CN 103789794 A CN103789794 A CN 103789794A
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- kaolin
- simple substance
- silica flour
- refinery coke
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Abstract
The invention discloses an aluminum ash positive electrode steel claw protection tile and a preparation method thereof. The aluminum ash positive electrode steel claw protection tile is formed by mixing aluminum ash produced by electrolytic aluminum with petroleum coke, monatomic silicon powder and kaolin and then pressing a mixture through a tile maker, wherein the petroleum coke, the monatomic silicon powder and the kaolin respectively account for 5-20 percent, 0.5-3 percent and 1-5 percent of the weight of the aluminum ash. According to the aluminum ash positive electrode steel claw protection tile, the aluminum ash replaces carbon materials, so that the intensity of a product is greatly enhanced; meanwhile, the use of the aluminum ash is recycling of waste, so that the production cost can be greatly lowered; furthermore, the aluminum ash is extracted from an electrolytic tank, so that the protection tile prepared from the aluminum ash cannot pollute an aluminum liquid in the electrolytic tank. Moreover, the monatomic silicon powder in the protection tile can greatly improve the oxidization resistance of the product, and the kaolin can be sintered to be a structure similar to ceramic together with some components in the aluminum ash in a raw material sintering process, so that the intensity and the anti-scouring performance of the product are greatly improved.
Description
Technical field
The present invention relates to the anode steel jaw resist technology in electrolytic aluminum field, a kind of aluminium grey matter anode steel jaw protection specifically watt and preparation method thereof.
Background technology
In Aluminium Electrolysis, anode used needs timing to change, owing to being subject to the restriction of anode manufacturing technology and Aluminium Electrolysis technology, anode block can not be by completely consumed, and the residual anode height more swapping out is generally 1/3rd of original height, and this has improved production cost greatly.For this reason, aluminium electrolysis enterprise generally adopts anode steel claw protection ring technology, and it can make full use of the virtual height of anode, thereby reduces consumption and the cost of anode block.
Electrolysis process has strict requirement to guard ring: enough intensity, makes it avoid electrolytical and wash away; Enough oxidation-resistances and anti-vaporization ability, make it be difficult for falling slag, do not affect electrolysis production.Anode steel claw protection ring of the prior art is generally to adopt carbon material to make, although its resistivity is very low, its intensity and oxidation-resistance are all not high, thereby cause its work-ing life very low.
Summary of the invention
Anode steel claw protection ring intensity and the antioxidant property short problem in low work-ing life of causing made for solving existing carbon material, the invention provides a kind of aluminium grey matter anode steel jaw protection watt and preparation method thereof.
The protection watt of a kind of aluminium grey matter anode steel jaw; after mixing with refinery coke, simple substance silica flour and kaolin, the aluminium ash being produced by electrolytic aluminum use a system watt machine compacting to form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 5-20%, 0.5-3% and the 1-5% of aluminium ash weight.
In anode steel jaw of the present invention protection watt, can also contain the rosin of aluminium ash weight 0.5-1.5%.
, containing the preparation method of the anode steel jaw protection of rosin watt, do not comprise the following steps:
1) get respectively refinery coke, simple substance silica flour and kaolin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then take aluminium ash, refinery coke, simple substance silica flour and kaolin according to ratio claimed in claim 1, for subsequent use;
2) get respectively load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, then at the temperature lower calcination 1-3h of 1300-1500 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in preparation mixing fine powders mix, then use system a watt machine be pressed into needed protection watt product.
The preparation method of the anode steel jaw protection that contains rosin watt, comprises the following steps:
1) get respectively refinery coke, simple substance silica flour, kaolin and rosin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then take aluminium ash, refinery coke, simple substance silica flour, kaolin and rosin according to ratio claimed in claim 2, for subsequent use;
2) get respectively load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, then at the temperature lower calcination 1-3h of 1300-1500 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) first by load weighted rosin fusing in step 1); then by fusing after rosin after mixing, join step 2 with load weighted simple substance silica flour in step 1)) in prepare mixing fine powders in; after again mixing, use a system watt machine to be pressed into needed protection watt product.
Beneficial effect: compared with the anode steel claw protection ring of the present invention and prior art, have the following advantages:
1, the present invention uses aluminium ash to replace carbon materials, increase substantially the intensity of making product, simultaneously, because aluminium ash used belongs to the recycling of waste, not only can significantly reduce production costs, and aluminium ash is to claw from electrolyzer, the protection of making take it as raw material watt can not be polluted the aluminium liquid in electrolyzer;
2, by mixing therein refinery coke, and then calcining, making refinery coke slaking, its conduction property changes, and the refinery coke after slaking is distributed in the conductivity that can improve product in product;
3, by adding therein simple substance silica flour, significantly improve the antioxidant property of product, and wherein contained kaolin at high temperature can sinter with some composition of containing in aluminium ash the structure of similar pottery into, increases substantially intensity and the scour resistance of product;
4, the present invention is used further to preparing product after rosin is mixed with simple substance silica flour, makes like this under hot environment, and the simple substance silica flour of interiors of products can be easier to the migration of product surface part, thereby play better antioxygenation.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated.
In following embodiment, aluminium ash used, simple substance silica flour, kaolin, refinery coke and rosin are all materials conventional in industrial production.
Embodiment 1
The protection watt of a kind of aluminium grey matter anode steel jaw; after mixing with refinery coke, simple substance silica flour and kaolin, the aluminium ash being produced by electrolytic aluminum use a system watt machine compacting to form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 5%, 0.5% and 1% of aluminium ash weight, and its preparation method is as follows:
1) get respectively refinery coke, simple substance silica flour and kaolin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then 5%, 0.5% and 1% the ratio that is respectively aluminium ash weight according to refinery coke, simple substance silica flour and kaolinic weight takes aluminium ash, refinery coke, simple substance silica flour and kaolin, for subsequent use;
2) then get load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, at the temperature lower calcination 1h of 1300 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in preparation mixing fine powders mix, then use system a watt machine be pressed into needed protection watt product.
Embodiment 2
The protection watt of a kind of aluminium grey matter anode steel jaw; after mixing with refinery coke, simple substance silica flour and kaolin, the aluminium ash being produced by electrolytic aluminum use a system watt machine compacting to form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 20%, 3% and 5% of aluminium ash weight, and its preparation method is as follows:
1) get respectively refinery coke, simple substance silica flour and kaolin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then 20%, 3% and 5% the ratio that is respectively aluminium ash weight according to refinery coke, simple substance silica flour and kaolinic weight takes aluminium ash, refinery coke, simple substance silica flour and kaolin, for subsequent use;
2) then get load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, at the temperature lower calcination 3h of 1500 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in preparation mixing fine powders mix, then use system a watt machine be pressed into needed protection watt product.
Embodiment 3
The protection watt of a kind of aluminium grey matter anode steel jaw; after mixing with refinery coke, simple substance silica flour and kaolin, the aluminium ash being produced by electrolytic aluminum use a system watt machine compacting to form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 13%, 1.8% and 3% of aluminium ash weight, and its preparation method is as follows:
1) get respectively refinery coke, simple substance silica flour and kaolin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then 13%, 1.8% and 3% the ratio that is respectively aluminium ash weight according to refinery coke, simple substance silica flour and kaolinic weight takes aluminium ash, refinery coke, simple substance silica flour and kaolin, for subsequent use;
2) then get load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, at the temperature lower calcination 2h of 1400 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in preparation mixing fine powders mix, then use system a watt machine be pressed into needed protection watt product.
Embodiment 4
For the even compact more that simple substance silica flour is mixed with mixing fine powders, and better make simple substance silica flour play anti-oxidation object, can in step 3), can add rosin;
The preparation method of the anode steel jaw protection that contains rosin watt is as follows:
1) get respectively refinery coke, simple substance silica flour, kaolin and rosin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then the ratio that is respectively 5-20%, 0.5-3%, 1-5% and the 0.5-1.5% of aluminium ash weight according to the weight of refinery coke, simple substance silica flour, kaolin and rosin takes aluminium ash, refinery coke, simple substance silica flour, kaolin and rosin, for subsequent use;
2) get load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, then at the temperature lower calcination 1-3h of 1300-1500 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) first by load weighted rosin fusing in step 1); then by fusing after rosin after mixing, join step 2 with load weighted simple substance silica flour in step 1)) in prepare mixing fine powders in; after again mixing, use a system watt machine to be pressed into needed protection watt product.
Claims (4)
1. an aluminium grey matter anode steel jaw protection watt; it is characterized in that: after the aluminium ash being produced by electrolytic aluminum mixes with refinery coke, simple substance silica flour and kaolin, use a system watt machine compacting to form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 5-20%, 0.5-3% and the 1-5% of aluminium ash weight.
2. a kind of aluminium grey matter anode steel jaw protection watt as claimed in claim 1, is characterized in that: the rosin that also contains aluminium ash weight 0.5-1.5%.
3. the preparation method of a kind of aluminium grey matter anode steel jaw protection as claimed in claim 1 watt, is characterized in that, comprises the following steps:
1) get respectively refinery coke, simple substance silica flour and kaolin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then take aluminium ash, refinery coke, simple substance silica flour and kaolin according to ratio claimed in claim 1, for subsequent use;
2) get respectively load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, then at the temperature lower calcination 1-3h of 1300-1500 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in preparation mixing fine powders mix, then use system a watt machine be pressed into needed protection watt product.
4. the preparation method of a kind of aluminium grey matter anode steel jaw protection as claimed in claim 2 watt, is characterized in that, comprises the following steps:
1) get respectively refinery coke, simple substance silica flour, kaolin and rosin, and the aluminium ash of above-mentioned raw materials and electrolytic aluminum generation is all worn into below 100 orders, then take aluminium ash, refinery coke, simple substance silica flour, kaolin and rosin according to ratio claimed in claim 2, for subsequent use;
2) get respectively load weighted aluminium ash, refinery coke and kaolin in step 1) and mix, then at the temperature lower calcination 1-3h of 1300-1500 ℃, take out after cooling and regrind into the mixing fine powders below 100 orders, for subsequent use;
3) first by load weighted rosin fusing in step 1); then by fusing after rosin after mixing, join step 2 with load weighted simple substance silica flour in step 1)) in prepare mixing fine powders in; after again mixing, use a system watt machine to be pressed into needed protection watt product.
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| CN201410017089.2A CN103789794B (en) | 2014-01-15 | 2014-01-15 | A kind of aluminium grey matter anode steel jaw protection watt and preparation method thereof |
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