CN214557361U - Protective pouring integral tundish cover - Google Patents
Protective pouring integral tundish cover Download PDFInfo
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- CN214557361U CN214557361U CN202120747645.7U CN202120747645U CN214557361U CN 214557361 U CN214557361 U CN 214557361U CN 202120747645 U CN202120747645 U CN 202120747645U CN 214557361 U CN214557361 U CN 214557361U
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- steel
- cover
- tundish cover
- protective
- tundish
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Abstract
The utility model belongs to the technical field of steelmaking continuous casting, and discloses a protective pouring integral tundish cover, which consists of a sealing ring, a protective cover and an integral tundish cover; the whole tundish cover comprises a steel structure, anchoring pieces and a refractory material, the steel structure comprises an outer frame steel frame and connecting steel pieces inside the outer frame steel frame, the steel structure and the refractory material are integrally molded by casting, the outline of the outer frame steel frame of the steel structure is consistent with the shape of a tundish cover opening in the middle of the cover, and a longitudinal connecting steel plate and a transverse connecting steel pipe of the connecting steel pieces in the outer frame of the whole tundish cover are welded into a groined structure. The utility model discloses need not change at the continuous casting pouring in-process, can cancel the robotic arm device simultaneously, eliminated the potential safety hazard of changing the long mouth of a river. In addition, the consumption of refractory materials can be greatly reduced by canceling the long ladle nozzle, and the production cost of ton steel is reduced.
Description
Technical Field
The utility model belongs to the technical field of steelmaking continuous casting, especially, relate to a protection pouring is ladle cover in whole.
Background
Continuous casting is an important link of steelmaking production, and the conventional continuous casting technology at present is to send smelted molten steel into a tundish from a ladle through a long nozzle at the lower part of the ladle and then form a billet through a crystallizer. The upper part of the tundish is covered with a tundish cover for heat preservation, and the long nozzle at the lower part of the ladle is used for controlling the flow direction of molten steel, protecting the molten steel and preventing the molten steel from contacting air and oxidizing (shown in figure 1 to comprise the long nozzle 18 of the ladle).
In the production actual operation, the installation of long mouth of a river, change are very complicated, need the arm to assist and go on, and the ladle is long for a long mouth of a river's life-span is short moreover, in a continuous casting process, needs many times to change, has the potential safety hazard.
Through the above analysis, the problems and defects of the prior art are as follows:
the long ladle nozzle and the tundish cover in the prior art are two parts, the long ladle nozzle is short in service life in actual production operation, and needs to be replaced for many times in the process of pouring steel by a tundish, mechanical arm operation is needed, the operation is very complicated, accidents are easy to happen, and potential safety hazards exist in the process of replacing the long ladle nozzle. In addition, the ladle long nozzle is replaced for many times, which is not favorable for reducing the consumption of ton steel refractory materials.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides a ladle cover in middle of protection pouring is whole.
The utility model discloses a realize like this, a whole pouring basket lid of protection pouring, whole pouring basket lid connects the steel hole position and installs the safety cover, the safety cover top is provided with the sealing washer.
Further, the protective cover comprises a steel shell; the interior of the steel shell is coated with a light insulating layer; the light insulating layer is internally coated with a working layer refractory castable layer; and argon blowing pipes are surrounded around the outside of the steel shell.
Further, the argon blowing pipe terminal is provided with a convenient interface connected with an air source.
The integral tundish cover 15 has various patterns (the patterns of fig. 5 to 7 are enumerated), and the shape thereof is designed according to the tundish pattern.
Further, the whole tundish cover 15 includes steel construction, anchor assembly and refractory material, the steel construction includes the frame steelframe and connects the inside connection steel spare of frame steelframe, the steel construction with the whole casting of refractory material is moulded, the frame steelframe profile of steel construction is unanimous with the shape of the tundish lip in the middle of covering, the whole tundish cover 15 outer frame internal connection steel spare longitudinal tie steel plate 11 and the transverse connection steel pipe 10 weld into "well" font structure.
The utility model discloses the advantage that possesses and positive effect do:
the utility model discloses utilize the long mouth of a river of safety cover replacement ladle lower part to protect the pouring, the safety cover is installed in whole on the ladle cover connect the steel hole position, the utility model discloses the whole tundish cover of protection pouring comprises whole tundish cover, safety cover, sealing washer. The protective cover is arranged at the position of the steel hole covered by the whole tundish, argon blowing pipes are arranged around the protective cover, and the sealing ring is arranged at the top of the protective cover. When steel is poured, a ladle nozzle falls on the sealing ring, and when the steel is poured, the argon blowing pipe control switch is opened to fill argon in the protective cover, so that the steel flow is protected, and molten steel oxidation is prevented.
The utility model discloses technical characteristics are that utilize the long mouth of a river of safety cover replacement ladle lower part to protect the pouring, the safety cover is installed in connecing the steel hole position of ladle cover in whole, and the safety cover is longe-lived, need not change in a tundish continuous casting pouring process, can cancel the mechanical arm device of changing the long mouth of a river simultaneously, has eliminated the potential safety hazard of changing the long mouth of a river. In addition, a ladle long nozzle is cancelled, the consumption of the ladle long nozzle is reduced, and the production cost of ton steel is reduced.
Drawings
Fig. 1 is a schematic view of a conventional continuous casting process.
Fig. 2 is a schematic view of a continuous casting process of a protective pouring integral tundish cover provided by the embodiment of the invention.
Fig. 3 is a schematic view of a protective pouring integral tundish cover according to an embodiment of the present invention.
Fig. 4 is a view of a protective cover structure according to an embodiment of the present invention.
Fig. 5 is a schematic view of an embodiment of the present invention showing a cover of the whole tundish.
Fig. 6 is a schematic view of an overall tundish cover according to an embodiment of the present invention.
Fig. 7 is a schematic view of a whole tundish cover according to an embodiment of the present invention.
In fig. 1-7: 1. a steel structure; 2. a refractory material; 3. a temperature measuring hole; 4. a steel flowing hole; 5. baking the holes; 6. connecting steel holes; 7. an argon blowing pipeline; 8. lifting lugs; 9. an anchoring member; 10. transversely connecting the steel pipes; 11. longitudinally connecting steel plates; 12. a ladle; 13. a seal ring; 14. a protective cover; 14-1, steel shell; 14-2, blowing an argon tube; 14-3, a light insulating layer; 14-4, a working layer refractory castable layer; 15. an integral tundish cover; 16. a tundish; 17. a crystallizer; 18. and (5) a ladle long nozzle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
To the problem that prior art exists, the utility model provides a whole middle be built by contract 15 of protection pouring, it is right to combine the figure below the utility model discloses do detailed description.
As shown in figures 2-7, the protective pouring integral tundish cover provided by the utility model consists of a sealing ring 13, a protective cover 14 and an integral tundish cover 15 (comprising 1, a steel structure, 2, refractory materials, 3, a temperature measuring hole, 4, a steel flowing hole, 5, baking, 6, a steel receiving hole, 7, an argon blowing pipeline, 8, a lifting lug, 9, an anchoring piece, 10, a transverse connecting steel pipe, 11, a longitudinal connecting steel plate, and various patterns such as figures 5, 6 and 7).
The sealing ring 13 is made of refractory fiber, and the refractoriness is more than or equal to 1790 ℃.
The protective cover 14 (shown in figure 4) is composed of a steel shell 14-1, a light insulating layer 14-3, a working layer refractory castable layer 14-4 and an argon blowing pipe 14-2 arranged on the periphery of a steel plate.
The argon blowing pipe 14-2 is made of a seamless steel pipe and communicated with an opening in the protective cover 14, and a convenient connector for connecting an air source is arranged at the terminal of the argon blowing pipe.
The protective cover 14 is arranged at the position of a steel connecting hole of the integral tundish cover 15, argon blowing pipes are arranged around the protective cover 14, and the sealing ring 13 is arranged at the upper end of the protective cover.
The whole tundish cover 15 comprises a steel structure, anchoring pieces and a refractory material, the steel structure comprises an outer frame steel frame and connecting steel pieces connected inside the outer frame steel frame, the steel structure and the refractory material are integrally molded by casting, and the outline of the outer frame steel frame of the steel structure is consistent with the shape of a tundish opening covered by the steel structure.
The longitudinal connecting steel plate 11 and the transverse connecting steel pipe 10 of the connecting steel piece in the outer frame of the integral tundish cover are welded into a structure shaped like a Chinese character 'jing'.
Below the integral tundish cover 15 is a tundish 16, said tundish 16 being on a crystallizer 17.
The positions of the steel connecting holes of the whole tundish cover 15 (shown in figures 5-7) are different, and the whole tundish cover, the sealing ring 13 and the protective cover 14 can be combined into different appearance forms, so that the product diversity of the utility model is embodied.
The utility model provides a ladle cover in middle of protection pouring is whole is applicable to the centre package of each model conticaster such as slab, square billet.
The utility model discloses the concrete implementation process as follows:
the integral tundish cover is an integral large-span tundish cover (patterns shown in figures 5, 6 and 7) and is composed of a steel structure and refractory castable;
the protective cover consists of a steel plate, a light insulating layer, a working layer refractory castable layer and an argon blowing pipe, the argon blowing pipe on the periphery of the steel plate is made of a seamless steel pipe and is communicated with an opening in the protective cover, and a convenient interface for connecting a gas source is arranged at the terminal of the argon blowing pipe;
the sealing ring is made of refractory fiber, the refractoriness is more than or equal to 1790 ℃, and the sealing ring mainly plays a role in ensuring that the bottom of the ladle is tightly attached to the protective cover and also plays a role in buffering.
The indexes of the refractory castable for the protective cover are as follows:
Al2O3percent: not less than 50%, 110 ℃ x 24h volume density: not less than 2.3g/cm3。
Flexural strength at 110 ℃ for 24 h: not less than 8Mpa, 110 ℃ x 24h compressive strength: not less than 50 MPa.
Breaking strength at 1400 ℃ for 3 h: not less than 10Mpa, 1400 ℃ x 3h compressive strength: not less than 60 MPa.
When steel is poured, a ladle nozzle falls on the sealing ring 13, and when the steel is poured, the argon blowing pipe control switch is opened to fill argon in the protective cover, so that the steel flow is protected, and molten steel oxidation is prevented.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.
Claims (5)
1. The protective casting integral tundish cover is characterized by consisting of a sealing ring, a protective cover and an integral tundish cover;
the protective cover is arranged at the position of the steel hole of the whole tundish cover, and the sealing ring is arranged at the top of the protective cover.
2. A protective cast one-piece tundish cover according to claim 1, wherein the protective shroud comprises a steel shell;
the interior of the steel shell is coated with a light insulating layer; the light insulating layer is internally coated with a working layer refractory castable layer;
and argon blowing pipes are surrounded around the outside of the steel shell.
3. The protective cast integral tundish cover of claim 2, wherein the argon blowing tube end is provided with a convenient interface for connecting to a gas source.
4. The protective casting integral tundish cover according to claim 1, wherein the integral tundish cover comprises a steel structure, an anchoring member and a refractory material, the steel structure comprises an outer frame steel frame and a connecting steel member connected inside the outer frame steel frame, the steel structure and the refractory material are integrally cast, and the outline of the outer frame steel frame of the steel structure is consistent with the shape of the tundish opening of the tundish cover.
5. The protective cast integral tundish cover according to claim 1, wherein the connecting steel member in the outer frame of the integral tundish cover is welded with the longitudinal connecting steel plate and the transverse connecting steel pipe to form a groined structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120747645.7U CN214557361U (en) | 2021-04-13 | 2021-04-13 | Protective pouring integral tundish cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120747645.7U CN214557361U (en) | 2021-04-13 | 2021-04-13 | Protective pouring integral tundish cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214557361U true CN214557361U (en) | 2021-11-02 |
Family
ID=78359521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120747645.7U Active CN214557361U (en) | 2021-04-13 | 2021-04-13 | Protective pouring integral tundish cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214557361U (en) |
-
2021
- 2021-04-13 CN CN202120747645.7U patent/CN214557361U/en active Active
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