CN101319336B - Special-shaped positive level steel paw of circular column leg with different radii for aluminium electrolysis - Google Patents
Special-shaped positive level steel paw of circular column leg with different radii for aluminium electrolysis Download PDFInfo
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- CN101319336B CN101319336B CN2008101407096A CN200810140709A CN101319336B CN 101319336 B CN101319336 B CN 101319336B CN 2008101407096 A CN2008101407096 A CN 2008101407096A CN 200810140709 A CN200810140709 A CN 200810140709A CN 101319336 B CN101319336 B CN 101319336B
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- leg
- steel pawl
- carbon anode
- steel claw
- circular column
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Abstract
The invention relates to a non-straight cylindrical leg allotypic anode steel claw used for aluminum electrolysis, which relates to the anode steel claw used for aluminum electrolysis, wherein, a steel claw beam is arranged on the lower part of a steel claw lug boss; the lower part of the steel claw beam is connected with a steel claw leg; the lower half part of the steel claw leg is arranged inside a carbon anode pellet; and the steel claw leg arranged inside the carbon anode pellet is thin on the upper part and thick on the lower part. Moreover, the side line of the steel claw leg arranged inside the carbon anode pellet is a curve or a straight line, and the curve can select a hyperbola; and the included angle between the side face and the bottom of the steel claw leg arranged inside the carbon anode pellet adopts a tangent plane for transition and also can adopt a circular surface for transition. The non-straight cylindrical leg allotypic anode steel claw has the advantages that: the anode steel claw increases the contact area between the steel claw leg and a phosphorus pig iron ring, reduces the resistance and the power consumption, avoids formation of the shape of a truncated cone which is thick on the upper part and thin on the lower part on the lower part of the steel claw leg in the early stage, well solves the problem of loosening of a guide bar, and can prolong the service life of the steel claw by 0.5 to 2 years.
Description
Technical field:
The present invention relates to the anode steel jaw of used for aluminium electrolysis.
Background technology:
In Aluminium Electrolysis technology, the function of anode carbon block group is that direct current energy is conducted to the electrolyte solution in the electrolyzer from positive bar.Anode steel jaw is in the anode carbon block group system, anode rod, blast piece and anode carbon block are linked together, the anode steel jaw leg inserts in the charcoal ball, the gap space of about between the two 20 mm wides is cast with phosphorus pig iron liquid, form phosphorus pig iron ring, electric current is passed to ionogen by anode rod, blast piece, anode steel jaw, phosphorus pig iron ring, anode carbon block successively like this.
Anode steel jaw in the anode carbon block group that the aluminum current electrolysis is used, no matter the quantity of anode steel jaw leg what and arrangement mode are how, it is cylindrical that lower part of its anode steel jaw leg is, the circumference side and the bottom surface angle of cut are 90 to spend.
The degree of depth that cylindrical steel pawl leg stretches in the charcoal piece ball is generally 100～110 millimeters, and the working temperature of bottom is about 600～800 degree Celsius, more or less freely oxidation, and the working temperature on top is 150～500 degree Celsius, degree of oxidation is lighter relatively; Lengthening along with duration of service, the anode steel jaw leg is oxidized at leisure to be peeled off, be the bottom than thin round table-like of upper diameter, make and take place easily between steel pawl leg and the phosphorus pig iron ring to become flexible, thereby make guide rod part (anode rod, blast piece, anode steel jaw) produce and rock, make the resistance increase between guide rod part and the charcoal piece many, can make steel pawl to volts lost between the charcoal piece increase by 10～20 millivolts, make ton aluminium power consumption increase by 30～60 degree, severe patient can't be gone up groove.It is rubescent anode steel jaw to be taken place behind the last groove by force, even takes off the utmost point, and the Serious Accident that causes the charcoal piece to be fallen in the electrolyzer takes place.
Summary of the invention:
The object of the present invention is to provide a kind of used for aluminium electrolysis non-with footpath circular column leg heterotypic positive pole steel pawl, up and down oxidation difference and between the steel pawl leg that causes and the ferrophosphorus ring generation loosening, that this position resistance increases and takes off phenomenons such as the utmost point takes place of invar pawl leg can be greatly eliminated and be solved in its use.
The objective of the invention is to realize by following scheme: used for aluminium electrolysis is non-with footpath circular column leg heterotypic positive pole steel pawl, steel pawl boss bottom is a steel pawl crossbeam, steel pawl crossbeam bottom connects the steel receiving grab leg, steel pawl leg lower part places the carbon anode ball, it is characterized in that: it is up-thin-low-thick placing the steel pawl leg of carbon anode ball.
Purpose of the present invention also can further realize by following scheme:
Placing the side lines of the steel pawl leg of carbon anode ball is curve or straight line, and curve can be selected hyperbolic line.
Place the side and the bottom angle of the steel pawl leg of carbon anode ball to adopt the tangent plane transition, tangent plane length is generally greater than 1 millimeter, and the angle that tangent plane and bottom surface form can be selected 10～80 degree.
Place the side and the bottom angle of the steel pawl leg of carbon anode ball to adopt the arc surface transition, the radius of arc surface is generally greater than 1 millimeter.
Place the steel pawl leg of carbon anode ball to be the right cylinder of different diameter, from top to bottom right cylinder is progressively by becoming than major diameter than minor diameter.
Placing the steel pawl leg top of carbon anode ball and the distance at carbon anode ball edge is 20 millimeter, and the distance at bottom and carbon anode ball edge is 15 millimeter.
On steel pawl leg, be provided with the round dot or the annulus of projection.
In the bottom of steel pawl leg is inner concavity, in be provided with the projection round dot or annulus.
The invention has the advantages that: 1, increase the contact area between steel pawl leg and the phosphorus pig iron ring, reduced resistance, reduced power consumption; 2, reduce between steel pawl leg bottom and the phosphorus pig iron ring because phosphorus pig iron ring becomes the wavelength width of a slit that the solid postcooling forms by high-temp liquid; 3, owing to the bottom attenuation of phosphorus pig iron ring, broken easily and destroyed; 4, steel pawl leg circumference side and bottom angle change arc-shaped surface transition or little tangent plane transition into, and phosphorus pig iron liquid flows to the bottom from sidepiece easily, make steel pawl leg bottom full full; 5, avoid that steel pawl shank is early stage to be formed upper coarse and lower fine round table-likely, can solve the loosening hard nut to crack of guide rod well; 6, can prolong 0.5～2 year work-ing life of steel pawl.
Description of drawings:
Fig. 1 is the embodiment of the invention 1 structural representation; Fig. 2 is the embodiment of the invention 1 a mounting structure synoptic diagram; Fig. 3 is the embodiment of the invention 2 structural representations; Fig. 4 is the embodiment of the invention 3 mounting structure synoptic diagram.
Embodiment:
Below in conjunction with embodiment, the present invention is done further narration.
Embodiment 1: as shown in Figure 1, the formation of steel pawl is: the aluminium guide bar bottom connects the blast piece, blast piece bottom connects steel receiving grab boss 1, and the boss bottom is a steel pawl crossbeam 2, and steel pawl crossbeam bottom connects steel receiving grab leg 3, lower part of leg is up-thin-low-thick round platform 4, in frustum cone side and bottom 5, adopt tangent plane 6 transition, tangent plane can select 10～80 to spend with the angle that the bottom surface forms, preferable range is 30～60 degree, and tangent plane length is generally greater than 1 millimeter.
As shown in Figure 2, steel pawl leg 3 places carbon anode 7 balls, and the carbon anode ball is a right cylinder of even thickness up and down, and the distance at steel pawl leg top and carbon anode ball edge is 20 millimeter, and the distance at steel pawl leg bottom and carbon anode ball edge is 15 millimeter; Distance between steel pawl leg bottom and carbon anode ball is 3～5 millimeter.
Embodiment 2: as shown in Figure 3, the formation of steel pawl is: the aluminium guide bar bottom connects the blast piece, blast piece bottom connects steel receiving grab boss 1, the boss bottom is a steel pawl crossbeam 2, steel pawl crossbeam bottom connects steel receiving grab leg 3, and lower part of leg is up-thin-low- thick round platform 4,5 in frustum cone side and bottom, adopt arc surface 6 transition, the radius of arc surface is generally greater than 1 millimeter.
Leg places the part of carbon anode ball among the embodiment 1,2, and for up-thin-low-thick, its lateral lines can be taked straight line or curve, when adopting curve, can select hyp lower part.
Embodiment 3: as shown in Figure 4, steel pawl leg 3 places carbon anode 7 balls, and steel pawl leg places the top (accounting for 1/3rd) of carbon anode ball to be the right cylinder than minor diameter, and the distance at steel pawl leg and carbon anode ball edge is 20 millimeter; Steel pawl leg places the lower section (accounting for 2/3rds) of carbon anode ball to be larger-diameter right cylinder, and the distance at steel pawl leg and carbon anode ball edge is 15 millimeter; Distance between steel pawl leg bottom and carbon anode ball is 3～5 millimeter.
Also can adopt the similar design as Fig. 4: steel pawl leg places carbon anode ball middle and upper part branch (accounting for 1/3rd) to be the right cylinder than minor diameter, and the distance at steel pawl leg and carbon anode ball edge is 20 millimeter; It is intermediate diameters that steel pawl leg places the part (accounting for 1/3rd) of carbon anode ball, and the distance at steel pawl leg and carbon anode ball edge is 10～15 millimeter; Steel pawl leg places the lower section (accounting for 1/3rd) of carbon anode ball to be larger-diameter right cylinder, and the distance at steel pawl leg and carbon anode ball edge is the 10-5 millimeter; Distance between steel pawl leg bottom and carbon anode ball is 3～5 millimeter.
For increasing contact area, can carry out following design: the round dot or the annulus that on steel pawl leg, are provided with projection; In the bottom of steel pawl leg is inner concavity, is provided with the round dot or the annulus of projection in the bottom of steel pawl leg.
Because phosphorus pig iron ring becomes the wavelength width of a slit that the solid postcooling forms by high-temp liquid, with the total width at steel pawl leg and carbon anode ball edge certain proportionlity is arranged, therefore reduced the width of phosphorus pig iron ring, just reduced this slit effectively, therefore the resistance that can prevent so cause increases.
Among the present invention, the steel pawl can be various pawl types such as two pawls, three-jaw, four paws, six pawls, eight pawls.
Claims (10)
1. non-steel pawl boss bottom is a steel pawl crossbeam to used for aluminium electrolysis with footpath circular column leg heterotypic positive pole steel pawl, and steel pawl crossbeam bottom connects the steel receiving grab leg, and steel pawl leg lower part places the carbon anode ball, it is characterized in that: it is up-thin-low-thick placing the steel pawl leg of carbon anode ball.
2. used for aluminium electrolysis according to claim 1 is non-with footpath circular column leg heterotypic positive pole steel pawl, and it is characterized in that: placing the side lines of the steel pawl leg of carbon anode ball is curve.
3. used for aluminium electrolysis according to claim 2 is non-with footpath circular column leg heterotypic positive pole steel pawl, and it is characterized in that: curve is a hyperbolic line.
4. used for aluminium electrolysis according to claim 1 is non-with footpath circular column leg heterotypic positive pole steel pawl, and it is characterized in that: placing the side lines of the steel pawl leg of carbon anode ball is straight line.
5. non-with footpath circular column leg heterotypic positive pole steel pawl according to claim 2 or 3 or 4 described used for aluminium electrolysis, it is characterized in that: place the side and the bottom angle of the steel pawl leg of carbon anode ball to adopt the tangent plane transition, tangent plane length is greater than 1 millimeter, and the angle that tangent plane and bottom surface form is selected acute angle 10～80 degree.
6. non-with footpath circular column leg heterotypic positive pole steel pawl according to claim 2 or 3 or 4 described used for aluminium electrolysis, it is characterized in that: place the side and the bottom angle of the steel pawl leg of carbon anode ball to adopt the arc surface transition, the radius of arc surface is greater than 1 millimeter.
7. used for aluminium electrolysis according to claim 1 is non-with footpath circular column leg heterotypic positive pole steel pawl, it is characterized in that: place carbon anode ball steel pawl leg to be divided into and respectively account for 1/3rd upper, middle and lower three parts, top is divided into the right cylinder of less diameter, and the distance at steel pawl leg and carbon anode ball edge is 20 millimeters; The middle part is divided into the right cylinder of intermediate diameters, and the distance at steel pawl leg and carbon anode ball edge is 10～15 millimeters; The bottom is divided into larger-diameter right cylinder, and the distance at steel pawl leg and carbon anode ball edge is the 10-5 millimeter; Distance between steel pawl leg bottom and carbon anode ball is 3～5 millimeters.
8. used for aluminium electrolysis according to claim 1 is non-with footpath circular column leg heterotypic positive pole steel pawl, and it is characterized in that: placing the steel pawl leg top of carbon anode ball and the distance at carbon anode ball edge is 20 millimeters, and the distance at bottom and carbon anode ball edge is 15 millimeters.
9. used for aluminium electrolysis according to claim 1 is non-with footpath circular column leg heterotypic positive pole steel pawl, it is characterized in that: the round dot or the annulus that are provided with projection on steel pawl leg.
10. used for aluminium electrolysis according to claim 1 is non-, and it is characterized in that: in the bottom of steel pawl leg is inner concavity with footpath circular column leg heterotypic positive pole steel pawl, in be provided with the round dot or the annulus of projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101407096A CN101319336B (en) | 2008-07-21 | 2008-07-21 | Special-shaped positive level steel paw of circular column leg with different radii for aluminium electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101407096A CN101319336B (en) | 2008-07-21 | 2008-07-21 | Special-shaped positive level steel paw of circular column leg with different radii for aluminium electrolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101319336A CN101319336A (en) | 2008-12-10 |
| CN101319336B true CN101319336B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101407096A Expired - Fee Related CN101319336B (en) | 2008-07-21 | 2008-07-21 | Special-shaped positive level steel paw of circular column leg with different radii for aluminium electrolysis |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108525B (en) * | 2011-04-11 | 2012-07-25 | 商丘市鑫科节能技术服务有限公司 | Method for connecting electrolytic aluminum anode without pouring |
| CN104342719A (en) * | 2013-08-08 | 2015-02-11 | 林州市中泰科技有限公司 | Anti-scour energy-saving anode steel stub |
| CN103789793B (en) * | 2014-01-15 | 2016-04-27 | 王会智 | A kind of anode steel jaw protection watt and preparation method thereof |
| CN109680303A (en) * | 2019-02-26 | 2019-04-26 | 中南大学 | A kind of electrolytic cell and its anode steel claw |
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| CN101319336A (en) | 2008-12-10 |
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