CN220943174U - Plate blank continuous casting tundish heat exchange blank shell supporting piece - Google Patents
Plate blank continuous casting tundish heat exchange blank shell supporting piece Download PDFInfo
- Publication number
- CN220943174U CN220943174U CN202322655876.7U CN202322655876U CN220943174U CN 220943174 U CN220943174 U CN 220943174U CN 202322655876 U CN202322655876 U CN 202322655876U CN 220943174 U CN220943174 U CN 220943174U
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- Prior art keywords
- blank
- heat exchange
- continuous casting
- blank shell
- supporting piece
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000005266 casting Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model discloses a plate blank continuous casting tundish heat exchange blank shell supporting piece, which comprises two portal-shaped frames formed by screw steel, wherein the lower ends of supporting legs at two sides of the two portal-shaped frames are respectively inclined towards the inner sides, the centers of the two supporting pieces are transversely fixed with a cross rod, the cross rod is respectively vertical to the plane where the two portal-shaped frames are positioned, the centers of the cross rods are transversely fixed with a hanging lug through a vertical rod, and the hanging lug 1 is formed by a steel pipe and is used for containing tools.
Description
Technical Field
The utility model relates to a plate blank continuous casting tundish heat exchange blank shell supporting piece. The auxiliary tool aims at preventing cold steel from being adhered to a support guide section and reinforcing the tight connection of new and old blank shells caused by rising of molten steel after the tail blank shells shrink in a crystallizer during heat exchange of a tundish of a slab caster in a steel mill.
Background
After the lifetime of the tundish of the continuous casting machine expires, the heat exchange of the tundish is necessary to maintain continuous production of the continuous casting machine and improve the operation rate of the continuous casting machine. The casting blank is stopped during heat exchange, and the casting blank in the crystallizer is formed by a thin blank shell and a liquid core wrapped by the thin blank shell. Along with gradual solidification and shrinkage of a continuous cooling liquid core of a casting blank, the blank shell can shrink and collapse towards the central position of a crystallizer after the liquid core is shrunk and does not receive the pressure of molten steel, so that the blank shell is separated from the wall of the crystallizer to form an air gap, if the air gap is seriously shrunk by the blank shell, the air gap is very large, and when a new tundish is poured, molten steel flows down to the foot roller along the air gap to be stuck on the foot roller to damage equipment, so that production interruption accidents are caused, and measures are required to support the blank shell in the crystallizer to prevent the blank shell from collapsing and shrinking to generate the air gap. In addition, the liquid core is shallow in shrinkage during heat exchange, so that the combination area of new and old shells is small, the welding surface is not firm, and steel leakage accidents are easy to cause great influence on the precision of production and continuous casting equipment.
Search document:
The invention relates to a novel improved slab continuous casting plug connector, which is characterized in that the plug connector is a structure of a cylindrical connecting arm end part welded with a strip-shaped connecting plate, the function of the plug connector is only to strengthen the linking action of new and old shells, the support of the shells is invalid, and the effect, the structure, the appearance and the like of the shell support designed in the process are different from those of the invention, so that the plug connector is essentially different from the searched invention, and other documents such as papers, documents, patents and the like are not found.
Disclosure of Invention
The utility model aims to provide a plate blank continuous casting tundish heat exchange blank shell supporting piece, which is used for completely supporting a blank shell to stop the blank shell from shrinking towards the center to prevent a large air gap from being formed between the blank shell and a copper wall, and is convenient for firmly combining a new blank shell and an old blank shell generated after new molten steel is injected into a crystallizer, so that a steel pulling-out and steel leakage accident is avoided.
In order to prevent the occurrence of the accidents during the heat exchange of the tundish, the utility model adopts the technical scheme that the support piece of the heat exchange tundish shell of the slab continuous casting comprises two portal frames formed by screw steel, the lower ends of supporting legs at two sides of the two portal frames incline towards the inner sides respectively, the centers of the two support pieces are transversely fixed with a cross rod, the cross rod is respectively vertical to the plane where the two portal frames are positioned, the center of the cross rod is transversely fixed with a hanging lug through a vertical rod, and the hanging lug 1 is formed by a steel pipe and is used for containing tools.
Through the use, the support piece of new design preparation has great effect to the strong tight prevention shrink of tail base shell and strengthen the seam intensity of new old base shell, has ensured production and equipment safety in the middle package heat exchange process. The support piece of the blank shell of the tundish heat exchange crystallizer is designed according to the width of the inner cavity of the crystallizer, and is formed by mechanically processing and bending two deformed steel bars into two blank shell support legs and welding the two support legs by using the deformed steel bars. In order to ensure that the support legs are completely inserted into the molten steel to completely support the solidification shell, the shrinkage deformation of the blank shell in the crystallizer is prevented from generating a larger air gap.
The lower part of the leg is designed into an inclined plane, the cooling effect of the supporting leg after the supporting leg is inserted into molten steel promotes the molten steel contacted with the supporting leg to be quickly solidified and the supporting leg to form a whole, the friction force between the supporting leg and the solidified shell is enhanced by the screw thread of the supporting leg, the supporting leg cannot be separated when the supporting leg is subjected to the tensile force and the bending force of beating, the supporting piece still has a certain distance to be higher than the upper edge of the blank shell at the rear upper part of the leg supporting blank shell, and the supporting steel bars of the higher part and the leg are beneficial to the reinforcing connection between the new blank shell and the old blank shell after the molten steel is injected, so that the new blank shell and the old blank shell are effectively prevented from being broken off in an arc change area to develop a steel leakage accident.
This base shell support piece has set up the hangers of placing tool between the connecting rod, can conveniently use the tool to penetrate the hangers and swiftly accurately place support piece in corresponding molten steel position.
The utility model comprises the following steps: 1. the safety of the heat exchange process of the continuous slab casting tundish is greatly improved, the production accidents are greatly reduced, the equipment loss is greatly reduced, the equipment precision is ensured, and the labor intensity of workers is reduced. 2. Because of the supporting function of the insert climbing piece of the tundish heat exchange crystallizer, the shrinkage deformation of the wide surface and the narrow surface of the tail blank shell in the crystallizer is extremely small, molten steel in the casting blank can not be extruded, and the damage of the molten steel to internal equipment of the continuous casting machine is prevented. 3. Because the insert climbing piece supports the blank shell strongly, molten steel can not be extruded out to explode when meeting cooling water during the heat exchange of the tundish, and the safety of staff and equipment is ensured. 4. The phenomenon of molten steel rising in the crystallizer under abnormal conditions is eliminated, the running stability of the continuous casting machine is ensured, and the working stability and the operating rate of the continuous casting machine are improved.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Detailed Description
The utility model provides a package heat exchange base shell support in middle of slab continuous casting, as shown in fig. 1, this support includes two door font frame 3 that constitute by screw steel, and the both sides supporting leg lower extreme of two door font frame 3 is respectively opposite inboard slope, and a horizontal pole 2 is transversely fixed in two support centers, and horizontal pole 2 is perpendicular with the plane that two door font frame 3 are located respectively, and a hangers 1 is transversely fixed in horizontal pole center 2 through a pole setting 4. The hanging lugs 1 are made of steel pipes and are used for containing tools.
Claims (1)
1. A heat exchange blank shell supporting piece of a plate blank continuous casting tundish is characterized in that: the support piece comprises two portal frames which are formed by screw steel, the lower ends of support legs on two sides of the two portal frames incline towards the inner sides respectively, a cross rod is transversely fixed at the center of the two support pieces, the cross rod is perpendicular to the plane where the two portal frames are located respectively, a hanging lug is transversely fixed at the center of the cross rod through a vertical rod, and the hanging lug (1) is formed by steel pipes and used for containing tools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655876.7U CN220943174U (en) | 2023-09-28 | 2023-09-28 | Plate blank continuous casting tundish heat exchange blank shell supporting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655876.7U CN220943174U (en) | 2023-09-28 | 2023-09-28 | Plate blank continuous casting tundish heat exchange blank shell supporting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220943174U true CN220943174U (en) | 2024-05-14 |
Family
ID=90976474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322655876.7U Active CN220943174U (en) | 2023-09-28 | 2023-09-28 | Plate blank continuous casting tundish heat exchange blank shell supporting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220943174U (en) |
-
2023
- 2023-09-28 CN CN202322655876.7U patent/CN220943174U/en active Active
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