CN216607212U - Long-life continuous casting tundish - Google Patents
Long-life continuous casting tundish Download PDFInfo
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- CN216607212U CN216607212U CN202123145775.2U CN202123145775U CN216607212U CN 216607212 U CN216607212 U CN 216607212U CN 202123145775 U CN202123145775 U CN 202123145775U CN 216607212 U CN216607212 U CN 216607212U
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- working layer
- tundish
- magnesium
- continuous casting
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Abstract
The utility model provides a long-life continuous casting tundish, includes the shell, be equipped with permanent layer in the shell, be equipped with the fetal membrane in the permanent layer, the fetal membrane outside is equipped with working layer and magnesium board respectively, and one side of magnesium board is equipped with the backplate, the fetal membrane encloses into the triangle-shaped spatial structure who is used for filling slag line dry-type material with working layer, magnesium board. According to the utility model, the slag line dry material is filled in the triangular space structure at the rear side of the magnesium plate to form an obtuse slag line material working layer, so that the molten steel flow field is changed, the impact strength of the molten steel flow field on the rear area of the magnesium plate is reduced, and the erosion resistance of the working layer in the area is improved; greatly prolongs the service life of the tundish, reduces the steelmaking cost and ensures the continuity of production.
Description
Technical Field
The utility model belongs to the technical field of ferrous metallurgy continuous casting tundish processes, and particularly relates to a continuous casting tundish with a long service life.
Background
The continuous casting tundish is a refractory container which receives molten steel poured from a ladle and then distributes the molten steel to each crystallizer through a tundish nozzle. It has the following functions:
(1) reducing the ferrostatic pressure, keeping the stable molten steel level of the tundish, and injecting molten steel into the crystallizer in a balanced manner;
(2) promoting the impurities in the molten steel to further float upwards so as to purify the molten steel;
(3) and shunting the molten steel. For a multi-strand continuous casting machine, distributing molten steel to each crystallizer through a tundish;
(4) and storing the molten steel. When the multi-furnace continuous casting is used for replacing the ladle, the pulling speed is not reduced, and conditions are created for the multi-furnace continuous casting. Therefore, the tundish mainly has the functions of reducing pressure, stabilizing flow, removing impurities, storing and shunting molten steel.
During the stay period of the molten steel in the tundish, the steel slag can erode the wall (namely a working layer) of the tundish, and meanwhile, the molten steel can scour the wall of the tundish during pouring, so that the service life of the tundish is influenced. The working layer of the tundish is required to have excellent erosion resistance and scouring resistance according to the use and operation environment of the tundish.
At present, a magnesium plate is adopted in a tundish impact area as a working layer protection plate, the problems of mechanical scouring and erosion are serious, and the problem is asynchronous with the service lives of other parts of a tundish working layer and becomes a bottleneck problem of prolonging the service life of the tundish. The low service life of the tundish causes the following problems:
(1) the working layer must be replaced every time of pouring, so that the cost of the refractory material and the labor cost are increased;
(2) after the working layer is made, the working layer needs to be baked, so that the energy consumption is increased;
(3) the time for replacing the tundish is long, and the production plan is influenced;
(4) and the surplus of the tundish is increased, and the qualified rate of the blank is reduced.
Therefore, in the continuous casting production process, the service life of the working layer in the impact area of the tundish is prolonged to become a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a continuous casting tundish with long service life, which solves the problems in the background technology, can prolong the service life of a steelmaking continuous casting tundish and reduce steelmaking cost.
The technical scheme is that the continuous casting tundish with the long service life comprises a shell, wherein a permanent layer is arranged in the shell, a tire mold is arranged in the permanent layer, a working layer and a magnesium plate are respectively arranged on the outer side of the tire mold, a protection plate is arranged on one side of the magnesium plate, and the tire mold, the working layer and the magnesium plate form a triangular space structure for filling dry materials of a slag line.
Furthermore, one side of the magnesium plate is provided with a guard plate, and the other side of the magnesium plate, the green film and the working layer form an obtuse triangular space structure.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
1. A triangular space structure at the rear side of the magnesium plate is filled with a slag line dry material, and a triangular support is formed by the dry material, so that the shock resistance of the magnesium plate is greatly improved; the impact strength of the molten steel flow field on the rear area of the magnesium plate is reduced, and the erosion resistance of the working layer of the area is improved;
2. the utility model can greatly prolong the service life of the tundish, reduce the steelmaking cost, ensure the production continuity and has the characteristics of simple and convenient operation and low manufacturing cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The utility model is further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1, a long-life continuous casting tundish comprises a housing 1, be equipped with permanent layer 2 in the housing 1, be equipped with fetal membrane 4 in the permanent layer 2, the fetal membrane 4 outside is equipped with working layer 3 and magnesium board 6 respectively, and one side of magnesium board 6 is equipped with backplate 7, fetal membrane 4 encloses into the triangle-shaped spatial structure 5 that is used for filling slag line dry-type material with working layer 3, magnesium board 6.
One side of the magnesium plate 6 is provided with a protective plate 7, and the other side of the magnesium plate, the moulding bed 4 and the working layer 3 enclose a triangular space structure 5 with an obtuse angle.
The fetal membrane is a mould for building and replacing a working layer.
The utility model is improved on the basis of the existing tundish, the fetal membrane of the existing tundish is cut, a triangular columnar space is cut at the contact part of the fetal membrane and a working layer and a magnesium plate, and the space left after cutting is completely filled and knotted by slag line dry materials to form a triangular support, so that the service life of the steelmaking continuous casting tundish can be prolonged, and the steelmaking cost is reduced.
Claims (2)
1. The utility model provides a long-life package in middle of continuous casting, includes shell (1), its characterized in that, be equipped with permanent layer (2) in shell (1), be equipped with fetal membrane (4) in permanent layer (2), fetal membrane (4) outside is equipped with working layer (3) and magnesium board (6) respectively, and one side of magnesium board (6) is equipped with backplate (7), fetal membrane (4) enclose into triangle-shaped spatial structure (5) that are used for filling slag line dry-type material with working layer (3), magnesium board (6).
2. A long-life continuous casting tundish according to claim 1, wherein one side of the magnesium plate (6) is provided with a guard plate (7), and the other side of the magnesium plate, the mould (4) and the working layer (3) enclose an obtuse triangular space structure (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123145775.2U CN216607212U (en) | 2021-12-15 | 2021-12-15 | Long-life continuous casting tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123145775.2U CN216607212U (en) | 2021-12-15 | 2021-12-15 | Long-life continuous casting tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216607212U true CN216607212U (en) | 2022-05-27 |
Family
ID=81704028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123145775.2U Active CN216607212U (en) | 2021-12-15 | 2021-12-15 | Long-life continuous casting tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216607212U (en) |
-
2021
- 2021-12-15 CN CN202123145775.2U patent/CN216607212U/en active Active
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