CN105112939A - Method for manufacturing prebaked anode steel stud guard ring - Google Patents
Method for manufacturing prebaked anode steel stud guard ring Download PDFInfo
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- CN105112939A CN105112939A CN201510569097.2A CN201510569097A CN105112939A CN 105112939 A CN105112939 A CN 105112939A CN 201510569097 A CN201510569097 A CN 201510569097A CN 105112939 A CN105112939 A CN 105112939A
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- anode steel
- anode
- kraft paper
- steel pawl
- steel stud
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Abstract
The invention discloses a method for manufacturing a prebaked anode steel stud guard ring. The method is characterized by comprising the following steps that (1) cleaning is conducted, and impurities on an anode carbon block and an anode steel stud are cleaned up; (2) an anti-oxidation protective sleeve is manufactured, and the anode steel stud is sleeved with the cylindrical anti-oxidation protective sleeve manufactured through kraft paper; (3) anti-oxidation protective filling bodies are added, fresh aluminum oxide powder is uniformly added into an annular cavity formed between the anti-oxidation protective sleeve and the anode steel stud, and the adding height of the fresh aluminum oxide powder is flush with the upper edge of the anti-oxidation protective sleeve. According to the method for manufacturing the prebaked anode steel stud guard ring, the guard ring can be formed outside the anode steel stud, in this way, the steel stud can be prevented from being corroded by cryolite in abrasive powder materials, and the steel stud can be prevented from being oxidized by air entering under the high-temperature condition; the oxidation degree of the anode steel stud can be effectively reduced, and the purposes of improving the primary aluminum quality and prolonging the service life of the anode steel stud are achieved.
Description
Technical field
The invention belongs to electrolytic aluminium anode technical field, concrete is a kind of pre-baking anode steel pawl protection ring making method.
Background technology
In use, the sodium aluminum fluoride composition in abrasive dust material has certain corrodibility to steel grippers, and meanwhile, under the high temperature conditions, air enters and steel pawl also can be caused to be oxidized, and therefore, will generate one deck ferric oxide, and Oil repellent is larger on anode steel jaw top layer.The oxidation characteristic of anode steel jaw is as follows: anode steel jaw use the initial stage because of abrasive dust material in sodium aluminum fluoride composition relatively low, steel pawl diameter high current density is relatively little, therefore the oxidation of steel pawl is less, but along with the passing of anode steel jaw duration of service, in abrasive dust material, sodium aluminum fluoride composition raises, steel pawl diameter diminishes current density change greatly, steel pawl oxidation rate is accelerated, steel pawl degree of oxidation is more and more serious, along with long period uses, the diameter of steel pawl will reduce fast, and reach Rejection standard and roll off the production line in advance, reduce work-ing life.
In addition, when adopting anode scrap Automatic clearance line to carry out anode scrap cleaning work, a large amount of ferric oxide sticks on skull material and enters skull material pulverizing grinder powder flow path, abrasive dust material iron level is caused to increase, abrasive dust material adds as anode-covered material, and part enters ionogen and iron level in raw aluminum liquid can be caused to rise thus affect primary aluminum quality.
Summary of the invention
In view of this; the object of the present invention is to provide a kind of pre-baking anode steel pawl protection ring making method; guard ring can be made on the steel pawl of prebaked anode, to reduce anode steel jaw degree of oxidation, reach the raising promoting primary aluminum quality and the object extending anode steel jaw work-ing life.
For achieving the above object, the invention provides following technical scheme:
A kind of pre-baking anode steel pawl protection ring making method, comprises the steps:
1) clear up: the foreign material on anode carbon block and anode steel jaw are cleaned out;
2) protection against oxidation cover is made: utilize kraft paper to make cylindric protection against oxidation and overlap and be sleeved on anode steel jaw;
3) protection against oxidation obturator is added: be evenly added into by fresh aluminum oxide powder and overlapped in the annular chamber that forms between anode steel jaw by described protection against oxidation, and the interpolation of fresh aluminum oxide powder height is concordant with the upper limb that described protection against oxidation is overlapped.
Further, described step 2) in, the method that the protection against oxidation utilizing kraft paper to make cylindrical shape is overlapped is as follows:
A. one end of kraft paper is folded, and form folded rim;
B. the other end of kraft paper is inserted in foldable layer, and along the folded inverted formation left-hand thread of described folded rim;
C. after being opened by left-hand thread, then be enclosed within by kraft paper on corresponding anode steel jaw, finally by the two ends of kraft paper, left-hand thread is together again;
D. utilize staple to form kraft paper ring by fixing up and down for kraft paper left-hand thread position, and kraft paper ring is arranged as cylindric.
Further, in described step e, in the annular chamber adopting feeding device to be formed to kraft paper ring and corresponding anode steel jaw, add alumina powder.
Further, described feeding device comprises top material receiving mechanism and bottom charging mechanism; Described top material receiving mechanism comprises receiving hopper; Described bottom charging mechanism comprises reinforced housing, described reinforced housing communicates with described receiving hopper, described reinforced housing is provided with the slot to make way coordinated with the steel pawl girder steel of prebaked anode, and the two side of described slot to make way respectively and formed between anode steel jaw and be used for the loading channel that passes through of fresh aluminum oxide powder.
Further, also comprise the central flat be arranged between described top material receiving mechanism and bottom charging mechanism, described receiving hopper is fixedly mounted on the upper surface of described central flat, described reinforced housing is fixedly mounted on the lower surface of described central flat, and described central flat is provided with the through hole for being communicated with described receiving hopper and described loading channel.
Further, the bottom land of described slot to make way is provided with the base plate coordinated with the steel pawl girder steel of prebaked anode, is provided with guide channel between the both sides of described base plate and corresponding described loading channel.
Further, the bottom discharge mouth position of described receiving hopper is provided with flow valve, and described flow valve comprises and being arranged on described receiving hopper sidewall and the switch slide plate be slidably matched with it.
Further, the inwall of described receiving hopper is provided with the guide groove for described switch slide plate guiding.
Further, the inwall of described loading channel is airtight.
Further, described protection against oxidation cover is coaxially arranged with corresponding described anode steel jaw.
Beneficial effect of the present invention is:
Pre-baking anode steel pawl protection ring making method of the present invention, guard ring can be formed outward at anode steel jaw, so, can prevent sodium aluminum fluoride in abrasive dust material from corroding steel pawl, under can avoiding again hot conditions, air enters oxidation steel pawl, namely anode steel jaw degree of oxidation be can effectively reduce, the raising promoting primary aluminum quality and the object extending anode steel jaw work-ing life reached;
Prove by experiment:
1, after being cleaned out by the material on anode anode scrap, the steel pawl of anode anode scrap has complete aluminum oxide guard ring to protect steel pawl;
2, anode anode scrap has the steel pawl that intact oxidised aluminium guard ring is protected, and guard ring inner surface only has the iron oxide layer of one deck 1-2mm; Do not have the steel pawl that fresh aluminum oxide guard ring is protected, skull material block inner surface has the iron oxide layer of one deck about 10mm;
3, have aluminum oxide guard ring to protect the anode anode scrap of steel pawl, after being cleaned out by aluminum oxide guard ring, steel pawl surface oxidation iron layer is less; Do not have the anode scrap of aluminum oxide guard ring, after being cleaned out by aluminum oxide guard ring, steel pawl still adheres to one deck ferric oxide.
Experiment effect:
Use the anti-steel pawl oxidation of fresh aluminum oxide guard ring, reach following effect:
1, use fresh aluminum oxide guard ring protection steel pawl effectively suppress or reduce anode steel jaw degree of oxidation, effectively can extend steel pawl work-ing life.
2, use fresh aluminum oxide guard ring protection steel pawl effectively suppress or reduce anode steel jaw degree of oxidation, decrease the generation of ferric oxide, thus reduce systemic circulation material iron level, can effectively improve primary aluminum quality.
3, use fresh aluminum oxide guard ring protection steel pawl effectively suppress or reduce anode steel jaw oxidation, reduce the generation of steel pawl surface oxidation iron, effectively can reduce steel pawl ferric oxide labor cleaning workload.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is the structural representation of the prebaked anode after adopting pre-baking anode steel pawl protection ring making method of the present invention making guard ring;
Fig. 2 is the A detail drawing of Fig. 1;
Fig. 3 is the structural representation of feeding device;
Fig. 4 is the upward view of Fig. 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, can better understand the present invention and can be implemented, but illustrated embodiment is not as a limitation of the invention to make those skilled in the art.
The pre-baking anode steel pawl protection ring making method of the present embodiment, comprises the steps:
1) clear up: the foreign material on anode carbon block 11 and anode steel jaw 12 are cleaned out;
2) protection against oxidation cover 13 is made: utilize kraft paper make cylindric protection against oxidation cover 13 and be sleeved on anode steel jaw 12; Concrete, the method for the protection against oxidation cover 13 that the present embodiment utilizes kraft paper making cylindric is as follows:
A. one end of kraft paper is folded, and form folded rim;
B. the other end of kraft paper is inserted in foldable layer, and along the folded inverted formation left-hand thread of described folded rim;
C. after being opened by left-hand thread, then be enclosed within by kraft paper on corresponding anode steel jaw 12, finally by the two ends of kraft paper, left-hand thread is together again;
D. utilize staple to form kraft paper ring by fixing up and down for kraft paper left-hand thread position, and kraft paper ring is arranged for cylindric;
Concrete, the kraft paper that the present embodiment adopts is of a size of 800 × 150mm, and the folding width of kraft paper end is 1.5-2mm, and the folding width of the kraft paper end of the present embodiment is 1.8mm, to guarantee that kraft paper ring has enough internal diameters.
3) protection against oxidation obturator 14 is added: be evenly added into by fresh aluminum oxide powder by the annular chamber formed between described protection against oxidation cover 13 and anode steel jaw 12, and the interpolation of fresh aluminum oxide powder height is concordant with the upper limb that described protection against oxidation overlaps 13.
Further, in described step e, in the annular chamber adopting feeding device to be formed to kraft paper ring and corresponding anode steel jaw, add alumina powder.The feeding device of the present embodiment, comprises top material receiving mechanism and bottom charging mechanism; Described top material receiving mechanism comprises receiving hopper 1.Described bottom charging mechanism comprises reinforced housing 2, described reinforced housing 2 communicates with described receiving hopper 1, described reinforced housing 2 is provided with the slot to make way 3 coordinated with the steel pawl girder steel 15 of prebaked anode, and the two side of described slot to make way 3 respectively and formed between anode steel jaw 12 and be used for the loading channel 4 that passes through of fresh aluminum oxide powder.The inwall of the described loading channel 5 of the present embodiment is airtight, namely fits between the two ends of the two side of slot to make way 3 and the sidewall of anode steel jaw 12, can effectively prevent fresh aluminum oxide powder from revealing.
The prebaked anode guard ring feeding device of the present embodiment also comprises the central flat 5 be arranged between described top material receiving mechanism and bottom charging mechanism; described receiving hopper 1 is fixedly mounted on the upper surface of described central flat 5; described reinforced housing 2 is fixedly mounted on the lower surface of described central flat 5, and described central flat 5 is provided with the through hole for being communicated with described receiving hopper 1 and described loading channel 4.Further,
Further, the bottom land of described slot to make way 3 is provided with the base plate 6 coordinated with the steel pawl girder steel 15 of prebaked anode, be provided with guide channel between the both sides of described base plate 6 and corresponding described loading channel 4, the fresh aluminum oxide powder guiding in receiving hopper 1 can be entered in loading channel 4, be convenient to feed in raw material.
Further, the bottom discharge mouth position of described receiving hopper 1 is provided with flow valve, described flow valve comprises and being arranged on described receiving hopper 1 sidewall and the switch slide plate 7 be slidably matched with it, by arranging flow valve, and with opening and closing and the discharge port of closing receiving hopper 1, and the flow of adjustable fresh aluminum oxide powder, be convenient to control feed rate.The inwall of the described receiving hopper 1 of the present embodiment is provided with the guide groove led for described switch slide plate 7.
Further, described protection against oxidation cover 13 is coaxially arranged with corresponding described anode steel jaw 12, and the thickness of protection against oxidation obturator 14 can be made even.
The pre-baking anode steel pawl protection ring making method of the present embodiment, guard ring can be formed outward at anode steel jaw, so, can prevent sodium aluminum fluoride in abrasive dust material from corroding steel pawl, under can avoiding again hot conditions, air enters oxidation steel pawl, namely anode steel jaw degree of oxidation be can effectively reduce, the raising promoting primary aluminum quality and the object extending anode steel jaw work-ing life reached;
Prove by experiment:
1, after being cleaned out by the material on anode anode scrap, the steel pawl of anode anode scrap has complete aluminum oxide guard ring to protect steel pawl;
2, anode anode scrap has the steel pawl that intact oxidised aluminium guard ring is protected, and guard ring inner surface only has the iron oxide layer of one deck 1-2mm; Do not have the steel pawl that fresh aluminum oxide guard ring is protected, skull material block inner surface has the iron oxide layer of one deck about 10mm;
3, have aluminum oxide guard ring to protect the anode anode scrap of steel pawl, after being cleaned out by aluminum oxide guard ring, steel pawl surface oxidation iron layer is less; Do not have the anode scrap of aluminum oxide guard ring, after being cleaned out by aluminum oxide guard ring, steel pawl still adheres to one deck ferric oxide.
Experiment effect:
Use the anti-steel pawl oxidation of fresh aluminum oxide guard ring, reach following effect:
1, use fresh aluminum oxide guard ring protection steel pawl effectively suppress or reduce anode steel jaw degree of oxidation, effectively can extend steel pawl work-ing life.
2, use fresh aluminum oxide guard ring protection steel pawl effectively suppress or reduce anode steel jaw degree of oxidation, decrease the generation of ferric oxide, thus reduce systemic circulation material iron level, can effectively improve primary aluminum quality.
3, use fresh aluminum oxide guard ring protection steel pawl effectively suppress or reduce anode steel jaw oxidation, reduce the generation of steel pawl surface oxidation iron, effectively can reduce steel pawl ferric oxide labor cleaning workload.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. a pre-baking anode steel pawl protection ring making method, is characterized in that: comprise the steps:
1) clear up: the foreign material on anode carbon block and anode steel jaw are cleaned out;
2) protection against oxidation cover is made: utilize kraft paper to make cylindric protection against oxidation and overlap and be sleeved on anode steel jaw;
3) protection against oxidation obturator is added: be evenly added into by fresh aluminum oxide powder and overlapped in the annular chamber that forms between anode steel jaw by described protection against oxidation, and the interpolation of fresh aluminum oxide powder height is concordant with the upper limb that described protection against oxidation is overlapped.
2. pre-baking anode steel pawl protection ring making method according to claim 1, is characterized in that: described step 2) in, the method that the protection against oxidation utilizing kraft paper to make cylindrical shape is overlapped is as follows:
A. one end of kraft paper is folded, and form folded rim;
B. the other end of kraft paper is inserted in foldable layer, and along the folded inverted formation left-hand thread of described folded rim;
C. after being opened by left-hand thread, then be enclosed within by kraft paper on corresponding anode steel jaw, finally by the two ends of kraft paper, left-hand thread is together again;
D. utilize staple to form kraft paper ring by fixing up and down for kraft paper left-hand thread position, and kraft paper ring is arranged as cylindric.
3. pre-baking anode steel pawl protection ring making method according to claim 2, is characterized in that: in described step e, adds alumina powder in the annular chamber adopting feeding device to be formed to kraft paper ring and corresponding anode steel jaw.
4. pre-baking anode steel pawl protection ring making method according to claim 3, is characterized in that: described feeding device comprises top material receiving mechanism and bottom charging mechanism; Described top material receiving mechanism comprises receiving hopper; Described bottom charging mechanism comprises reinforced housing, described reinforced housing communicates with described receiving hopper, described reinforced housing is provided with the slot to make way coordinated with the steel pawl girder steel of prebaked anode, and the two side of described slot to make way respectively and formed between anode steel jaw and be used for the loading channel that passes through of fresh aluminum oxide powder.
5. pre-baking anode steel pawl protection ring making method according to claim 4; it is characterized in that: also comprise the central flat be arranged between described top material receiving mechanism and bottom charging mechanism; described receiving hopper is fixedly mounted on the upper surface of described central flat; described reinforced housing is fixedly mounted on the lower surface of described central flat, and described central flat is provided with the through hole for being communicated with described receiving hopper and described loading channel.
6. pre-baking anode steel pawl protection ring making method according to claim 5; it is characterized in that: the bottom land of described slot to make way is provided with the base plate coordinated with the steel pawl girder steel of prebaked anode, is provided with guide channel between the both sides of described base plate and corresponding described loading channel.
7. pre-baking anode steel pawl protection ring making method according to claim 4; it is characterized in that: the bottom discharge mouth position of described receiving hopper is provided with flow valve, described flow valve comprises and being arranged on described receiving hopper sidewall and the switch slide plate be slidably matched with it.
8. pre-baking anode steel pawl protection ring making method according to claim 7, is characterized in that: the inwall of described receiving hopper is provided with the guide groove for described switch slide plate guiding.
9. pre-baking anode steel pawl protection ring making method according to claim 4, is characterized in that: the inwall of described loading channel is airtight.
10. pre-baking anode steel pawl protection ring making method according to claim 4, is characterized in that: described protection against oxidation cover is coaxially arranged with corresponding described anode steel jaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569097.2A CN105112939B (en) | 2015-09-09 | 2015-09-09 | Pre-baking anode steel pawl protection ring preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569097.2A CN105112939B (en) | 2015-09-09 | 2015-09-09 | Pre-baking anode steel pawl protection ring preparation method |
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| CN105112939A true CN105112939A (en) | 2015-12-02 |
| CN105112939B CN105112939B (en) | 2017-08-29 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102917U (en) * | 1991-02-19 | 1992-04-29 | 贵阳发电厂 | Opening type lapped corner three-way funnel |
| JP2001225148A (en) * | 2000-02-17 | 2001-08-21 | Sintokogio Ltd | Method for blowing and packing molding sand into molding flask |
| CN1445383A (en) * | 2003-04-16 | 2003-10-01 | 兰州铝业股份有限公司 | Self-baking type guard ring for anode of electrolysis bath |
| CN2627009Y (en) * | 2003-04-16 | 2004-07-21 | 兰州铝业股份有限公司 | An anode protecting device |
| CN2664895Y (en) * | 2003-09-29 | 2004-12-22 | 王希钧 | Extrusion shaper |
| CN101643917A (en) * | 2009-09-10 | 2010-02-10 | 中国铝业股份有限公司 | Self-sintered electrolytic anode steel claw guard ring and preparation method thereof |
| CN203283839U (en) * | 2013-06-06 | 2013-11-13 | 力博重工科技股份有限公司 | Reversing plate type stereoscopic tee funnel |
-
2015
- 2015-09-09 CN CN201510569097.2A patent/CN105112939B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102917U (en) * | 1991-02-19 | 1992-04-29 | 贵阳发电厂 | Opening type lapped corner three-way funnel |
| JP2001225148A (en) * | 2000-02-17 | 2001-08-21 | Sintokogio Ltd | Method for blowing and packing molding sand into molding flask |
| CN1445383A (en) * | 2003-04-16 | 2003-10-01 | 兰州铝业股份有限公司 | Self-baking type guard ring for anode of electrolysis bath |
| CN2627009Y (en) * | 2003-04-16 | 2004-07-21 | 兰州铝业股份有限公司 | An anode protecting device |
| CN2664895Y (en) * | 2003-09-29 | 2004-12-22 | 王希钧 | Extrusion shaper |
| CN101643917A (en) * | 2009-09-10 | 2010-02-10 | 中国铝业股份有限公司 | Self-sintered electrolytic anode steel claw guard ring and preparation method thereof |
| CN203283839U (en) * | 2013-06-06 | 2013-11-13 | 力博重工科技股份有限公司 | Reversing plate type stereoscopic tee funnel |
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| CN105112939B (en) | 2017-08-29 |
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