CN219886204U - Crust breaking hammer for aluminum electrolysis cell - Google Patents
Crust breaking hammer for aluminum electrolysis cell Download PDFInfo
- Publication number
- CN219886204U CN219886204U CN202321413842.0U CN202321413842U CN219886204U CN 219886204 U CN219886204 U CN 219886204U CN 202321413842 U CN202321413842 U CN 202321413842U CN 219886204 U CN219886204 U CN 219886204U
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- CN
- China
- Prior art keywords
- hammer
- bullet
- crust
- head
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 16
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 13
- 239000004411 aluminium Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 6
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
The utility model discloses a crust-breaking hammer head for an aluminum electrolysis cell, which comprises a hammer rod, wherein more than three bullet heads are arranged at the end part of the hammer rod, and the bullet heads are vertically fixed on the end part plane of the hammer rod. According to the utility model, through changing the hammer structure, not only the shell breaking capacity can be greatly improved, but also the service life of the hammer can be remarkably prolonged and the production cost can be reduced through changing the hammer material.
Description
Technical Field
The utility model belongs to the technical field of electrolytic aluminum production, and particularly relates to a crust-breaking hammer for an aluminum electrolysis cell.
Background
At present, in the electrolytic aluminum production process, the aluminum oxide or aluminum fluoride discharging fire hole inside the electrolytic tank can be solidified to form a shell in a short time due to the reduction of the temperature after aluminum oxide or aluminum fluoride discharging, and when aluminum oxide or aluminum fluoride is discharged next time, the aluminum oxide or aluminum fluoride powder possibly cannot be discharged into a liquid electrolyte molten pool, so that the electrolytic tank cannot work normally, the yield of the electrolytic tank is influenced, an anode effect is generated, and the yield is low and the power consumption is high. To overcome the above problems, a hole is opened in the surface of the shell by using a crust breaking device of the electrolytic cell before the next alumina or aluminum fluoride is fed, so that the alumina or aluminum fluoride is fed. However, the crust breaking hammer of the prior crust breaking device has the following defects:
(1) The existing crust breaking hammer is easy to be worn and corroded by electrolyte in long-term crust breaking operation, and finally the size of the end part of the hammer is gradually reduced to be scrapped. Meanwhile, the electromagnetic field in the aluminum electrolysis process can raise the temperature of the hammer head, so that the oxidation corrosion of the hammer head is aggravated. Several reasons lead to a shortened lifetime of the hammer head, requiring frequent replacement, increasing production costs.
(2) The prior crust breaker works in a cylinder beating mode, and is set to about 6kgf/cm in a factory 2 When working under the air pressure, the shell cannot be broken every time due to the air cylinder pressure of the crust breaking device or the structural shape and the material of the crust breaking hammer head, and the success rate is low.
In summary, the crust breaking hammer of the crust breaking device of the existing electrolytic tank can not well meet the actual use requirement and needs to be further improved.
Disclosure of Invention
The utility model aims to overcome the prior art and provides a crust breaking hammer for an aluminum electrolysis cell.
The aim of the utility model is achieved by the following technical scheme: a crust-breaking hammer for aluminium electrolytic tank is composed of a hammer rod with more than three bullet heads at its end, and a vertical fixing unit for fixing said bullet heads to the end surface of hammer rod.
Further, a hammer head coaming surrounding the bullet head inside is arranged at the end part of the hammer rod, and meanwhile, the height of the hammer head coaming is smaller than that of the bullet head.
In order to achieve better effects, the utility model can also be provided with a fixing plate on the end plane of the hammer rod, the fixing plate is provided with through holes with the number and the hole positions matched with the bullet heads, and the tips of the bullet heads penetrate through the corresponding through holes to be exposed on the plane where the fixing plate is positioned.
In order to achieve better striking effect, the bullet heads are distributed at the end part of the hammer rod according to different circumferential diameters, and the bullet heads are all of diametersConical arc head with length of 20-65 mm.
The hammer coaming is preferably manufactured to be circular, and the inner diameter of the hammer coaming is the same as the diameter of the hammer rod.
Compared with the prior art, the utility model has the following advantages:
(1) According to the utility model, through changing the hammer structure, not only the shell breaking capacity can be greatly improved, but also the service life of the hammer can be remarkably prolonged and the production cost can be reduced through changing the hammer material.
(2) When the hammer head is used in practice, the hammer head can be driven into the electrolyte by only 10-50 mm in depth, and meanwhile, as the bullet heads are distributed according to different circumferential diameters, aluminum oxide can be used as an isolating layer between every two bullet heads in crust breaking, so that the middle part and the upper part of the bullet heads can be effectively prevented from being corroded and adhered by the electrolyte at high temperature, the stroke of a cylinder is shortened, and the service life and crust breaking efficiency of the hammer head can be greatly improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the distribution of the warhead of FIG. 1 in the plane of the end of the hammer shank;
FIG. 3 is a schematic view of the cross-section A-A in FIG. 1.
The reference numerals in the above figures are respectively: 1-hammer rod, 2-bullet, 3-hammer coaming and 4-fixing plate.
Detailed Description
The present utility model will be described in further detail with reference to examples, but embodiments of the present utility model are not limited thereto.
Examples
As shown in fig. 1 and 2, the crust-breaking hammer head according to the present utility model comprises a hammer rod 1 and a number of three or more bullet heads 2 arranged at the end positions of the hammer rod 1.
The hammer rod 1 and the bullet head 2 are preferably made of wear-resistant and high-temperature-resistant alloy steel materials, and in order to ensure the best use effect, the alloy steel materials are preferably made of a brand number of 60S i 2 Mn or 304 antimagnetic heat-resistant stainless steel. Meanwhile, in order to increase the wear resistance or the service life of the bullet 2, the bullet 2 is preferably made to have a diameter ofConical arc head with length of 20-65 mm.
To ensure the striking effect, all the bullet heads 2 need to be distributed on the end face of the hammer rod 1 according to different circumferential diameters, the structure of which is shown in fig. 2. In fig. 2, a circumferential distribution structure in which two rings of layers are formed on the end face of the hammer rod 1 is shown, that is, an inner ring layer may be formed into one circumferential distribution by 4 warheads 2, and an outer ring layer may be formed into one circumferential distribution by 8 warheads 2. The number of the bullet heads 2 can be increased or decreased according to practical situations, and the number is not required forcibly in the utility model.
Because corresponding gaps exist among the bullet heads 2, the utility model can fully utilize the shell formed by alumina as an isolating layer during crust breaking, and can effectively prevent the middle and upper positions of the bullet heads 2 from being corroded and adhered by electrolyte at high temperature, thereby greatly prolonging the service life of the bullet heads 2.
In order to further prevent the electrolyte from splashing during the crust breaking, the utility model can also be provided with a hammer head coaming 3 at the end part of the hammer rod 1. The hammer head coaming 3 is preferably made in a circular shape, and the inner diameter of the hammer head coaming is the same as the diameter of the hammer rod 1. After the hammer head coaming 3 and the hammer rod 1 are fixed together by adopting a welding mode, the hammer head coaming 3 surrounds all the bullet heads 2 inside. At this time, the height of the hammer head cover plate 3 is smaller than the height of the bullet heads 2 so as to ensure that the tips of all the bullet heads 2 can be exposed outside the hammer head cover plate 3, thereby ensuring that the tips of the bullet heads 2 can be used for breaking up the shell formed by solidification of the liquid electrolyte.
In order to fix the bullet 2 at the end position of the hammer rod 1, the utility model can also be fixed by a fixing plate 4, the structure of which is shown in fig. 3, namely, the fixing plate 4 is fixed on the end plane of the hammer rod 1 by welding on the end plane of the hammer rod 1, and the bullet 2 is fixed on the fixing plate 4 by welding, thereby achieving the purpose of fixing the bullet 2 at the end position of the hammer rod 1.
In this way, the fixing plate 4 needs to be provided with through holes whose number, hole positions and hole positions are matched with the bullet heads 2, all the bullet heads 2 are fixed inside the through holes, and at the same time, the tips of the bullet heads 2 need to penetrate through the corresponding through holes to be exposed on the plane where the fixing plate 4 is located.
By adopting the scheme, the utility model can operate with minimum shell resistance and only needs to enable the compressed air pressure to be about 2kgf/cm 2 The shell breaking function can be realized right and left. At this time, the crust breaking stroke of the present utility model is about 260mm, and the crust breaking frequency thereof is about 20 to 60 seconds.
As described above, the present utility model can be well implemented.
Claims (7)
1. The crust-breaking hammer head for the aluminum electrolysis cell comprises a hammer rod (1) and is characterized in that more than three bullet heads (2) are arranged at the end part of the hammer rod (1), and the bullet heads (2) are vertically fixed on the end part plane of the hammer rod (1).
2. A crust-breaking hammer for aluminium electrolysis cell according to claim 1, characterised in that a hammer-head coaming (3) is also provided at the end of the hammer rod (1) to enclose the bullet head (2) inside.
3. A crust-breaking hammer for aluminium electrolysis cells according to claim 2, wherein the height of the hammer shroud (3) is smaller than the height of the bullet head (2).
4. A crust-breaking hammer for aluminium electrolysis cell according to any one of claims 1 to 3, wherein a fixing plate (4) is further arranged on the end plane of the hammer rod (1), and the fixing plate (4) is provided with through holes with the number and hole positions matched with the bullet heads (2), and the tips of the bullet heads (2) penetrate through the corresponding through holes to be exposed on the plane of the fixing plate (4).
5. A crust-breaking hammer for aluminium electrolysis cells according to claim 4, wherein the bullet heads (2) are distributed according to different circumferential diameters at the end of the hammer stem (1).
6. A crust-breaking hammer for aluminium electrolysis cells according to claim 5, wherein the bullet head (2) has a diameter ofConical arc head with length of 20-65 mm.
7. A crust-breaking hammer for aluminium electrolysis cells according to claim 2 or 3, wherein the hammer-head cover plate (3) is circular and the inside diameter of the hammer-head cover plate (3) is the same as the diameter of the hammer rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321413842.0U CN219886204U (en) | 2023-06-05 | 2023-06-05 | Crust breaking hammer for aluminum electrolysis cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321413842.0U CN219886204U (en) | 2023-06-05 | 2023-06-05 | Crust breaking hammer for aluminum electrolysis cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219886204U true CN219886204U (en) | 2023-10-24 |
Family
ID=88408751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321413842.0U Active CN219886204U (en) | 2023-06-05 | 2023-06-05 | Crust breaking hammer for aluminum electrolysis cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219886204U (en) |
-
2023
- 2023-06-05 CN CN202321413842.0U patent/CN219886204U/en active Active
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| GR01 | Patent grant |