CN103820815A - Raw anode formula experiment method for increasing volume density of raw anode - Google Patents
Raw anode formula experiment method for increasing volume density of raw anode Download PDFInfo
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- CN103820815A CN103820815A CN201310671007.1A CN201310671007A CN103820815A CN 103820815 A CN103820815 A CN 103820815A CN 201310671007 A CN201310671007 A CN 201310671007A CN 103820815 A CN103820815 A CN 103820815A
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- volume density
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Abstract
A raw anode formula experiment method for increasing the volume density of a raw anode relates to a method for increasing the volume density of the raw anode and determining the best formula for the raw anode. The method is characterized in that a method of measuring the compaction bulk density of a uniformly blended dry material is firstly adopted to obtain a dry material formula with the highest compaction bulk density, the amount of powder is reduced on the basis of the formula, that is, the powder accounts for 0.1%-12% of the total weight of the dry material, then a plurality of formulas are obtained, 12%-16% of pitch is added into the material of each of the formulas and is uniformly blended and pinched, the mixture is formed under the same condition, the volume density of the raw anode is measured after forming, and the formula X with the highest volume density of the raw anode is the formula capable of effectively increasing the volume density of the raw anode. According to the experiment method provided by the invention, the formula with the highest volume density of the raw anode is chosen from the plurality of formulas, and a guarantee is provided for effectively increasing the volume density of the raw anode.
Description
Technical field
Improve an experimental technique for the green anode formula of green anode volume density, relating to a kind of is raising green anode volume density, determines the method for green anode optimum formula.
Background technology
In aluminium electrolysis anode production process, improve green anode volume density and contribute to improve the volume density of ripe of anode, and then improve its intensity, reduce resistivity, reduce air permeability, improve air and CO
2reactivity worth, can improve anode salable product, the ratio of first-grade products so improve green compact volume density, reduces anode consumption, reduces electrolysis of aluminum energy consumption, significant.
Main by adjusting siccative formula at present, raising pitch add-on, improves condition of molding and improves green anode density, and adjusting siccative formula is an important mode.In producing, mostly be that test by measuring mixed dry material joltpacked volume weight obtained the theory formula of siccative joltpacked volume weight when maximum in the past, then go out work formula according to theoretical formula calculation, employing work formula is prepared burden, and adds kneading after pitch, moulding to produce anode next life.While adopting aforesaid method to produce anode, after being dry mixed evenly, siccative is closestpacking state, add after pitch kneading, moulding, known according to sizing material opinion, pitch is wrapped in powder surface and forms a brea bed, and the cumulative volume of sizing material is greater than the volume of powder, thereby closestpacking state is destroyed, reduced to a certain extent the volume density of green anode.Add pitch kneading evenly if make after, thickener still keeps closestpacking state, should suitably reduce the amount of sizing material, namely will suitably reduce powder and pitch add-on.
Summary of the invention
Object of the present invention is exactly the experimental technique for a kind of green anode formula that improves green anode volume density is provided.
The object of the invention is to be achieved through the following technical solutions.
A kind of experimental technique of the green anode formula that improves green anode volume density, it is characterized in that first adopting the method for the joltpacked volume weight of measuring even mixed dry material, siccative formula while drawing maximum joltpacked volume weight, on the basis of this formula, reduce powder amount, be that the per-cent that powder accounts for siccative gross weight is 0.1-12%, obtain some formulas 1, 2, 3, 4 adopt respectively formula 1, 2, 3, 4 ... batching, add respectively the pitch kneading of 12%-16% even, then at identical conditions compacted under, after moulding, measure green anode volume density, the formula X of green anode volume density maximum is the formula that can effectively improve green anode volume density, its X is formula 1, 2, 3, 4 ... in one.
The experimental technique of a kind of green anode formula that improves green anode volume density of the present invention, is characterized in that reducing the some formulas 1,2,3,4 that obtain after powder amount ... be made into by the calcined coke that is no less than 3 grades.
The experimental technique of a kind of green anode formula that improves green anode volume density of the present invention, is characterized in that its molding mode can be vibratory compaction or compression molding.
The experimental technique of a kind of green anode formula that improves green anode volume density of the present invention, adopt the method for the joltpacked volume weight of measuring even mixed dry material, siccative formula while drawing maximum joltpacked volume weight, on the basis of this formula, reduce powder amount, from obtain some formulas, select the formula of green anode volume density maximum, provide assurance for effectively improving green anode volume density.
Embodiment
A kind of method that improves green anode volume density, adopt the method for the joltpacked volume weight of measuring even mixed dry material, siccative formula while drawing maximum joltpacked volume weight, on the basis of this formula, reduce the per-cent that powder amount 0.1-12%(powder accounts for siccative gross weight), obtain some formulas 1, 2, 3, 4 adopt respectively formula 1, 2, 3, 4 ... batching, add the pitch kneading of 12-16% even, then at identical conditions compacted under, after moulding, measure green anode volume density, the formula X(X of green anode volume density maximum is formula 1, 2, 3, 4 ... in one) be exactly the formula that can effectively improve green anode volume density.
Embodiment 1
Adopt certain calcined coke, by measuring the method for joltpacked volume weight of mixed dry material, the siccative formula while drawing maximum joltpacked volume weight, in this formula, powder amount is 40%.On the basis of this formula, reduce respectively the per-cent that powder amount 0.1%, 3%, 6%, 9%, 12%(powder account for siccative gross weight), obtain filling a prescription 1,2,3,4,5, adopt respectively formula 1,2,3,4,5 batchings, add respectively 16%, 15.4%, 14.8%, 14.2%, 13.6% pitch kneading even, then at identical conditions compacted under, after moulding, measure green anode volume density, the green compact volume density of formula 1,2,3,4,5 correspondences is respectively 1.62gcm
-3, 1.64gcm
-3, 1.67gcm
-3, 1.62gcm
-3, 1.57gcm
-3, therefore fill a prescription 3 for filling a prescription preferably.
Embodiment 2
Adopt certain calcined coke, by measuring the method for joltpacked volume weight of mixed dry material, the siccative formula while drawing maximum joltpacked volume weight, in this formula, powder amount is 33%.On the basis of this formula, reduce respectively the per-cent that powder amount 0.1%, 3%, 6%, 9%, 12%(powder account for siccative gross weight), obtain filling a prescription 1,2,3,4,5, adopt respectively formula 1,2,3,4,5 batchings, add respectively 14.4%, 13.8%, 13.2%, 12.6%, 12% pitch kneading even, then at identical conditions compacted under, after moulding, measure green anode volume density, the green compact volume density of formula 1,2,3,4,5 correspondences is respectively 1.62gcm
-3, 1.64gcm
-3, 1.66gcm
-3, 1.63gcm
-3, 1.58gcm
-3, therefore fill a prescription 3 for filling a prescription preferably.
Claims (3)
1. one kind is improved the experimental technique of the green anode formula of green anode volume density, it is characterized in that first adopting the method for the joltpacked volume weight of measuring even mixed dry material, siccative formula while drawing maximum joltpacked volume weight, on the basis of this formula, reduce powder amount, be that the per-cent that powder accounts for siccative gross weight is 0.1-12%, obtain some formulas 1, 2, 3, 4 adopt respectively formula 1, 2, 3, 4 ... batching, add respectively the pitch kneading of 12%-16% even, then at identical conditions compacted under, after moulding, measure green anode volume density, the formula X of green anode volume density maximum is the formula that can effectively improve green anode volume density, its X is formula 1, 2, 3, 4 ... in one.
2. the experimental technique of a kind of green anode formula that improves green anode volume density according to claim 1, is characterized in that reducing the some formulas 1,2,3,4 that obtain after powder amount ... be made into by the calcined coke that is no less than 3 grades.
3. the experimental technique of a kind of green anode formula that improves green anode volume density according to claim 1, is characterized in that its molding mode can be vibratory compaction or compression molding.
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| CN201310671007.1A CN103820815A (en) | 2013-12-12 | 2013-12-12 | Raw anode formula experiment method for increasing volume density of raw anode |
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|---|---|---|---|
| CN201310671007.1A CN103820815A (en) | 2013-12-12 | 2013-12-12 | Raw anode formula experiment method for increasing volume density of raw anode |
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| CN103820815A true CN103820815A (en) | 2014-05-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133090A (en) * | 1977-06-15 | 1979-01-09 | Aluminum Company Of America | Control of binder content in carbon article manufacture |
| CN87104371A (en) * | 1986-06-24 | 1988-01-06 | 皮奇尼铝公司 | Be used for producing the control method of the coal-tar middle oil content of anode of aluminium by electrolytic process |
| DE4109464A1 (en) * | 1991-03-22 | 1992-09-24 | Kloeckner Humboldt Deutz Ag | Monitoring and control of density and height of unburned anode blocks - formed from granulate mass with binding agent by vibratory compaction, to eliminate defective prodn. in e.g. aluminium@ smelting |
| DE19630874A1 (en) * | 1996-07-31 | 1998-02-05 | Deutz Ag | Apparatus for controlling the density of anode blocks during compaction on vibratory table |
| CN101285202A (en) * | 2007-04-09 | 2008-10-15 | 兴和县木子炭素有限责任公司 | Preparation method for moulding fine structure graphite anode |
| CN102337561A (en) * | 2011-11-01 | 2012-02-01 | 沈阳铝镁设计研究院有限公司 | Control method for production formula process of prebaked anode |
-
2013
- 2013-12-12 CN CN201310671007.1A patent/CN103820815A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133090A (en) * | 1977-06-15 | 1979-01-09 | Aluminum Company Of America | Control of binder content in carbon article manufacture |
| CN87104371A (en) * | 1986-06-24 | 1988-01-06 | 皮奇尼铝公司 | Be used for producing the control method of the coal-tar middle oil content of anode of aluminium by electrolytic process |
| DE4109464A1 (en) * | 1991-03-22 | 1992-09-24 | Kloeckner Humboldt Deutz Ag | Monitoring and control of density and height of unburned anode blocks - formed from granulate mass with binding agent by vibratory compaction, to eliminate defective prodn. in e.g. aluminium@ smelting |
| DE19630874A1 (en) * | 1996-07-31 | 1998-02-05 | Deutz Ag | Apparatus for controlling the density of anode blocks during compaction on vibratory table |
| CN101285202A (en) * | 2007-04-09 | 2008-10-15 | 兴和县木子炭素有限责任公司 | Preparation method for moulding fine structure graphite anode |
| CN102337561A (en) * | 2011-11-01 | 2012-02-01 | 沈阳铝镁设计研究院有限公司 | Control method for production formula process of prebaked anode |
Non-Patent Citations (1)
| Title |
|---|
| 李莹: "煅后焦配方振实密度及粉末比电阻与CO2反应性关系研究", 《东北大学硕士学位论文》, 15 March 2012 (2012-03-15), pages 15 - 29 * |
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Application publication date: 20140528 |