CN103789793B - A kind of anode steel jaw protection watt and preparation method thereof - Google Patents
A kind of anode steel jaw protection watt and preparation method thereof Download PDFInfo
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- CN103789793B CN103789793B CN201410017088.8A CN201410017088A CN103789793B CN 103789793 B CN103789793 B CN 103789793B CN 201410017088 A CN201410017088 A CN 201410017088A CN 103789793 B CN103789793 B CN 103789793B
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Abstract
A kind of aluminium grey matter anode steel jaw protection watt and preparation method thereof; use watt machine of making to suppress after being mixed with refinery coke, simple substance silica flour and kaolin by carbon raw material to form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 5-20%, 0.5-3% and 1-5% of carbon raw material weight.The present invention uses useless negative electrode, the useless carbon raw material such as carbon block or the no carbon dust in carbon element factory, dust-removing powder produces protection watt; take full advantage of existing waste; not only significantly can reduce production cost; nor the aluminium liquid that can pollute in electrolyzer; compared with the guard ring made with existing pure carbon, also conductivity can not be reduced.In addition, wherein contained simple substance silica flour can the antioxidant property of significantly enhanced products, and kaolin can carry out sintering into some composition in aluminium ash in sintering process at raw material the structure being similar to pottery, thus increase substantially intensity and the scour resistance of product.
Description
Technical field
The present invention relates to the anode steel jaw resist technology in electrolytic aluminum field, a kind of anode steel jaw protection specifically watt and preparation method thereof.
Background technology
Anode used in Aluminium Electrolysis needs timing to change, owing to being subject to the restriction of anode manufacturing technology and Aluminium Electrolysis technology, anode block can not be totally consumed, and the residual anode height more swapped out is generally 1/3rd of original height, which greatly enhances production cost.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, thus reduces consumption and the cost of anode block.
Electrolysis process has strict requirement to guard ring: enough intensity, makes it wash away from electrolytical; Enough oxidation-resistances and anti-vaporization ability, make it not easily fall slag, do not affect electrolysis production.Anode steel claw protection ring of the prior art is generally adopt carbon material to make, although its resistivity is very low, its intensity and oxidation-resistance are all not high, thus cause its work-ing life very low.
Summary of the invention
For solve anode steel claw protection ring intensity that existing carbon material makes and antioxidant property low work-ing life of causing short problem, the invention provides a kind of anode steel jaw protection watt and preparation method thereof.
A kind of anode steel jaw protection watt, use watt machine of making to suppress after being mixed with refinery coke, simple substance silica flour and kaolin by carbon raw material and form, wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 5-20%, 0.5-3% and 1-5% of carbon raw material weight.
Can also rosin containing carbon raw material weight 0.5-1.5% in anode steel jaw of the present invention protection watt.
Carbon raw material described in the present invention is the useless negative electrode of the electrolyzer generation of potroom, useless carbon block or the no carbon dust in carbon element factory, dust-removing powder.
Containing rosin anode steel jaw protection watt preparation method, comprise the following steps:
1) refinery coke, simple substance silica flour and kaolin is got respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then take carbon raw material, refinery coke, simple substance silica flour and kaolin for subsequent use, and refinery coke, simple substance silica flour and kaolinic weight are respectively 5-20%, 0.5-3% and 1-5% of carbon raw material weight;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 1-3h of 1300-1500 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in the mixing fine powders prepare mix, then use watt machine of system to be pressed into required protection watt product.
Containing rosin anode steel jaw protection watt preparation method, comprise the following steps:
1) refinery coke, simple substance silica flour, kaolin and rosin is got respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then take carbon raw material, refinery coke, simple substance silica flour, kaolin and rosin for subsequent use, and the weight of refinery coke, simple substance silica flour, kaolin and rosin is respectively 5-20%, 0.5-3%, 1-5% and 0.5-1.5% of carbon raw material weight;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 1-3h of 1300-1500 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) first by rosin fusing load weighted in step 1); then step 2 is joined after being mixed with simple substance silica flour load weighted in step 1) by the rosin after fusing) in the middle mixing fine powders prepared; after again mixing, system watt machine is used to be pressed into required protection watt product.
In the present invention, carbon raw material, refinery coke and kaolin mixing after in nitrogen atmosphere with the temperature calcination of 1300-1500 DEG C, its object has two: first, prevent the oxidization burning loss of carbon raw material, secondly, high-temperature calcination makes the fractions contained in kaolin sinter the structure being similar to ceramic phase into, thus disperse in the feed, the effect of skeleton is played, significantly the intensity of enhanced products and scour resistance after making product.
Beneficial effect: the present invention, compared with the anode steel claw protection ring of prior art, has the following advantages:
1, the present invention uses the electrolyzer of potroom to produce useless negative electrode, the useless carbon raw material such as carbon block or the no carbon dust in carbon element factory, dust-removing powder produce protection watt, make use of existing waste fully, not only significantly can reduce production cost, nor the aluminium liquid that can pollute in electrolyzer, compared with the guard ring made with existing pure carbon, also conductivity can not be reduced;
2, by mixing refinery coke wherein, and then calcine, make refinery coke slaking, its conduction property changes, and the refinery coke distribution after slaking can improve the conductivity of product in the product;
3, by adding simple substance silica flour wherein, significantly improve the antioxidant property of product, and some wherein containing when wherein contained kaolin is at high temperature calcined becomes branch to sinter the structure of similar pottery into, thus increase substantially intensity and the scour resistance of product;
4, the present invention is used further to preparing product after being mixed with simple substance silica flour by rosin, and make in high temperature environments like this, the simple substance silica flour of interiors of products can be easier to product surface part migrate, thus play better antioxygenation.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated.
Simple substance silica flour, kaolin, refinery coke and rosin used in following embodiment are all materials conventional in industrial production, and used carbonaceous material is useless negative electrode, the material of useless carbon block or the no carbon dust in carbon element factory, dust-removing powder etc. containing carbon that the electrolyzer of potroom produces.
Embodiment 1
A kind of anode steel jaw protection watt; it is characterized in that: use watt machine of making to suppress after being mixed with refinery coke, simple substance silica flour and kaolin by carbon raw material and form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 5%, 0.5% and 1% of carbon raw material weight, and its preparation method is as follows:
1) get refinery coke, simple substance silica flour and kaolin respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then take carbon raw material, refinery coke, simple substance silica flour and kaolin according to above-mentioned ratio for subsequent use;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 1h of 1300 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in the mixing fine powders prepare mix, then use watt machine of system to be pressed into required protection watt product.
Embodiment 2
A kind of anode steel jaw protection watt; it is characterized in that: use watt machine of making to suppress after being mixed with refinery coke, simple substance silica flour and kaolin by carbon raw material and form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 20%, 3% and 5% of carbon raw material weight, and its preparation method is as follows:
1) get refinery coke, simple substance silica flour and kaolin respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then take carbon raw material, refinery coke, simple substance silica flour and kaolin according to above-mentioned ratio for subsequent use;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 3h of 1500 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in the mixing fine powders prepare mix, then use watt machine of system to be pressed into required protection watt product.
Embodiment 3
A kind of anode steel jaw protection watt; it is characterized in that: use watt machine of making to suppress after being mixed with refinery coke, simple substance silica flour and kaolin by carbon raw material and form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 13%, 1.8% and 3% of carbon raw material weight, and its preparation method is as follows:
1) get refinery coke, simple substance silica flour and kaolin respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then take carbon raw material, refinery coke, simple substance silica flour and kaolin according to above-mentioned ratio for subsequent use;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 2h of 1400 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in the mixing fine powders prepare mix, then use watt machine of system to be pressed into required protection watt product.
Embodiment 4
The even compact more mixed with mixing fine powders to make simple substance silica flour, and better make simple substance silica flour play anti-oxidation object, the rosin of carbon raw material weight 0.5-1.5% can be added in step 3);
Containing rosin anode steel jaw protection watt preparation method as follows:
1) refinery coke, simple substance silica flour, kaolin and rosin is got respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then the ratio being respectively 5-20%, 0.5-3%, 1-5% and 0.5-1.5% of carbon raw material weight according to the weight of refinery coke, simple substance silica flour, kaolin and rosin takes carbon raw material, refinery coke, simple substance silica flour, kaolin and rosin, for subsequent use;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 1-3h of 1300-1500 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) first by rosin fusing load weighted in step 1); then step 2 is joined after being mixed with simple substance silica flour load weighted in step 1) by the rosin after fusing) in the middle mixing fine powders prepared; after again mixing, system watt machine is used to be pressed into required protection watt product.
Claims (4)
1. an anode steel jaw protection watt; it is characterized in that: use watt machine of making to suppress after being mixed with refinery coke, simple substance silica flour and kaolin by carbon raw material and form; wherein, refinery coke, simple substance silica flour and kaolinic weight are respectively 5-20%, 0.5-3% and 1-5% of carbon raw material weight.
2. a kind of anode steel jaw protection watt as claimed in claim 1, is characterized in that: the rosin also containing carbon raw material weight 0.5-1.5%.
3. the preparation method of a kind of anode steel jaw protection as claimed in claim 1 watt, is characterized in that, comprise the following steps:
1) get refinery coke, simple substance silica flour and kaolin respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then take carbon raw material, refinery coke, simple substance silica flour and kaolin according to ratio according to claim 1 for subsequent use;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 1-3h of 1300-1500 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) get load weighted simple substance silica flour and step 2 in step 1)) in the mixing fine powders prepare mix, then use watt machine of system to be pressed into required protection watt product.
4. the preparation method of a kind of anode steel jaw protection as claimed in claim 2 watt, is characterized in that, comprise the following steps:
1) refinery coke, simple substance silica flour, kaolin and rosin is got respectively, and above-mentioned raw materials and carbon raw material are all worn into the fine powder of below 100 orders, then take carbon raw material, refinery coke, simple substance silica flour, kaolin and rosin according to ratio according to claim 2 for subsequent use;
2) get load weighted carbon raw material, refinery coke and kaolin in step 1) respectively to mix, then in nitrogen atmosphere with the temperature calcination 1-3h of 1300-1500 DEG C, take out after cooling and wear into the mixing fine powders of below 100 orders, for subsequent use;
3) first by rosin fusing load weighted in step 1); then step 2 is joined after being mixed with simple substance silica flour load weighted in step 1) by the rosin after fusing) in the middle mixing fine powders prepared; after again mixing, system watt machine is used to be pressed into required protection watt product.
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| CN103789793B true CN103789793B (en) | 2016-04-27 |
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| CN108972840B (en) * | 2018-07-24 | 2020-02-07 | 重庆国丰实业有限公司 | Method for preparing electrolytic aluminum anode steel claw protection semi-ring |
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