CN211588518U - Argon sealing protection device for steel ingot casting - Google Patents
Argon sealing protection device for steel ingot casting Download PDFInfo
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- CN211588518U CN211588518U CN201922364119.8U CN201922364119U CN211588518U CN 211588518 U CN211588518 U CN 211588518U CN 201922364119 U CN201922364119 U CN 201922364119U CN 211588518 U CN211588518 U CN 211588518U
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- annular sleeve
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- argon
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Abstract
The utility model relates to a sealed protection device of steel ingot casting argon belongs to metallurgical industry steel ingot casting equipment technical field. The technical scheme is as follows: the annular sleeve (3) is fixed on the upper part of the ladle nozzle (2), a plurality of exhaust holes (4) which are uniformly distributed are formed in the circumferential direction of the annular sleeve (3), the exhaust direction of each exhaust hole (4) faces the lower part of the ladle nozzle (2), an argon pipeline (7) is connected with the annular sleeve (3), and a pressure regulating valve (8) is arranged on the argon pipeline (7); the protective cover (5) is in a cylindrical shape matched with the annular sleeve (3), and the protective cover (5) is fixed on the annular sleeve (3); the retractable protection cover (6) is in a cone cylinder shape, and the retractable protection cover (6) covers the outer side of the protection cover (5). The utility model has the advantages that: the protective casting can be carried out on the molten steel, the contact between steel flow and air is effectively avoided, the secondary oxidation of the molten steel is reduced, the air suction quantity of the molten steel is reduced, and the nitrogen suction quantity is reduced.
Description
Technical Field
The utility model relates to a sealed protection device of steel ingot casting argon belongs to metallurgical industry steel ingot casting equipment technical field.
Background
With the continuous improvement of product quality and performance, the quality control of the die casting steel is more rigorous, wherein the casting link is the key in the die casting process, and argon protection is the premise of ensuring the casting quality. The casting quality can be ensured only by qualified argon protection casting, and the product quality can be continuously improved.
For steel grades such as WSD690, SX780CF and the like, because the requirements of the steel grades on the N content are extremely high, the performance requirements of the steel plate cannot be met by adopting a common argon protection device. Therefore, in order to effectively avoid the direct contact between the molten steel and the air, further more effectively reduce the secondary oxidation of the molten steel, reduce the suction amount of the molten steel and stabilize the internal quality of the steel ingot, improvement on protective equipment in the process of casting the molten steel is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steel ingot casting argon gas seals protection device can implement the protection casting to the molten steel, effectively avoids steel stream and air contact, alleviates molten steel secondary oxidation, reduces the molten steel inspiratory capacity, reduces nitrogen gasInhalationAnd solving the problems existing in the prior art.
The technical scheme of the utility model is that:
a steel ingot casting argon gas sealing protection device comprises a large ladle, a steel ladle nozzle, an annular sleeve, exhaust holes, a protection cover, a telescopic protection cover, an argon gas pipeline and a pressure regulating valve, wherein the annular sleeve is fixed at the upper part of the steel ladle nozzle; the protective cover is in a cylindrical shape matched with the annular sleeve, and is fixed on the annular sleeve; the retractable protection cover is in a cone cylinder shape, and the retractable protection cover covers the outer side of the protection cover.
The ladle nozzle, the annular sleeve, the protective cover and the telescopic protective cover are arranged with the central axis.
The diameter of the protection cover is smaller than that of the telescopic protection cover.
The utility model has the advantages that: the annular sleeve is additionally arranged on the ladle nozzle, and the argon protects the steel flow below the ladle nozzle through the exhaust hole at the lower part of the annular sleeve, so that the direct contact between the molten steel and air is effectively avoided, the secondary oxidation of the molten steel is reduced, and the air suction amount of the molten steel is reduced; the protective cover can prevent steel flowers from burning high-temperature-resistant material cellucotton so as to avoid influencing the sealing property of the bale; the lower end of the telescopic protective cover is fixed on the pouring gate of the central casting pipe through the connecting rod, so that the sealing property between the ladle nozzle and the pouring gate of the central casting pipe is ensured. The utility model discloses simple structure, the protection is respond well, reduces the molten steel suction volume by a wide margin, is showing and is improving steel ingot internal quality and steel sheet performance, has the economic benefits who is showing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. large bags; 2. a ladle nozzle; 3. an annular sleeve; 4. an exhaust hole; 5. a protective cover; 6. a retractable protective cover; 7. an argon gas pipeline; 8. a pressure regulating valve.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached figure 1, the argon sealing protection device for steel ingot casting comprises a large ladle 1, a ladle nozzle 2, an annular sleeve 3, exhaust holes 4, a protection cover 5, a telescopic protection cover 6, an argon pipeline 7 and a pressure regulating valve 8, wherein the annular sleeve 3 is fixed on the upper part of the ladle nozzle 2, the annular sleeve 3 is provided with a plurality of exhaust holes 4 which are uniformly distributed in the circumferential direction, the exhaust direction of the exhaust holes 4 faces the lower part of the ladle nozzle 2, the argon pipeline 7 is connected with the annular sleeve 3, and the argon pipeline 7 is provided with the pressure regulating valve 8; the protective cover 5 is in a cylindrical shape matched with the annular sleeve 3, and the protective cover 5 is fixed on the annular sleeve 3; the retractable protection cover 6 is in a cone shape, and the retractable protection cover 6 covers the outer side of the protection cover 5.
In this embodiment, as shown in fig. 1, the annular sleeve 3 is horizontally placed, the annular sleeve 3 is sleeved on the ladle nozzle 2, the annular sleeve 3 is fixedly connected with the ladle nozzle 2, the annular sleeve 3 is connected with the argon gas pipeline 7, the lower part of the annular sleeve 3 is uniformly provided with exhaust holes 4 along the circumferential direction of the annular sleeve, and the exhaust holes 4 inject argon gas downwards;
as shown in figure 1, the periphery of the annular sleeve 3 is additionally provided with a protective cover 5, the protective cover 5 is a cylinder made of a steel plate, the upper part of the protective cover 5 is fixed above the annular sleeve 3 and is connected with the ladle nozzle 2, the lower end plane of the protective cover 5 is lower than the horizontal plane of the annular sleeve 3, and the protective cover 5 can prevent steel flowers from burning high-temperature-resistant material cellucotton so as not to influence the sealing performance of a big bag.
When casting, the telescopic protective cover 6 is fixed on the pouring gate of the middle pouring pipe through the connecting rod, and the sealing property between the ladle nozzle and the pouring gate of the middle pouring pipe is ensured, so that the direct contact between molten steel and air is effectively avoided, the secondary oxidation of the molten steel is reduced, and the air suction quantity of the molten steel is reduced.
Install pressure regulating valve 8 on the argon gas pipeline 7, through the pressure in adjusting the argon gas pipeline 7, regulating valve 8 can realize constant pressure argon protection casting. The pressure in the argon pipeline 7 is adjustable from 0.1 to 0.4Mpa, and the optimal pressure is adjusted to 0.3Mpa by adjusting a pressure pipeline valve 10 according to the process requirement in the casting process.
Adopt the utility model discloses, through the chemical examination, the molten steel contains N volume and only increases 3-9ppm than molten steel content before the bale after the casting, increases N volume with not using this argon gas sealing protection device and reduces 20-30ppm, reduces the quality loss 1400 ten thousand yuan annually.
Claims (3)
1. The utility model provides a steel ingot casting argon gas seals protection device which characterized in that: the steel ladle water gap protection device comprises a large ladle (1), a steel ladle water gap (2), an annular sleeve (3), exhaust holes (4), a protection cover (5), a telescopic protection cover (6), an argon pipeline (7) and a pressure regulating valve (8), wherein the annular sleeve (3) is fixed on the upper part of the steel ladle water gap (2), a plurality of exhaust holes (4) which are uniformly distributed are formed in the circumferential direction of the annular sleeve (3), the exhaust direction of the exhaust holes (4) faces the lower part of the steel ladle water gap (2), the argon pipeline (7) is connected with the annular sleeve (3), and the pressure regulating valve (8) is arranged on the argon pipeline (7); the protective cover (5) is in a cylindrical shape matched with the annular sleeve (3), and the protective cover (5) is fixed on the annular sleeve (3); the retractable protection cover (6) is in a cone cylinder shape, and the retractable protection cover (6) covers the outer side of the protection cover (5).
2. A steel ingot casting argon gas seal protection device according to claim 1, characterized in that: the ladle nozzle (2), the annular sleeve (3), the protective cover (5) and the telescopic protective cover (6) are arranged with the same central axis.
3. A steel ingot casting argon gas seal protection device according to claim 2, characterized in that: the diameter of the protective cover (5) is smaller than that of the telescopic protective cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922364119.8U CN211588518U (en) | 2019-12-25 | 2019-12-25 | Argon sealing protection device for steel ingot casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922364119.8U CN211588518U (en) | 2019-12-25 | 2019-12-25 | Argon sealing protection device for steel ingot casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211588518U true CN211588518U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922364119.8U Active CN211588518U (en) | 2019-12-25 | 2019-12-25 | Argon sealing protection device for steel ingot casting |
Country Status (1)
| Country | Link |
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| CN (1) | CN211588518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247135A (en) * | 2020-09-30 | 2021-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Die casting pouring protection device with height compensation and visual functions |
| CN114713769A (en) * | 2022-03-16 | 2022-07-08 | 杭州汽轮铸锻有限公司 | Protection device and method for molten steel pouring |
-
2019
- 2019-12-25 CN CN201922364119.8U patent/CN211588518U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247135A (en) * | 2020-09-30 | 2021-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Die casting pouring protection device with height compensation and visual functions |
| CN112247135B (en) * | 2020-09-30 | 2021-10-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Die casting pouring protection device with height compensation and visual functions |
| CN114713769A (en) * | 2022-03-16 | 2022-07-08 | 杭州汽轮铸锻有限公司 | Protection device and method for molten steel pouring |
| CN114713769B (en) * | 2022-03-16 | 2024-01-26 | 杭州汽轮铸锻股份有限公司 | Protection device and method for molten steel pouring |
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