CN217412391U - Pouring and shunting device for double tundish - Google Patents
Pouring and shunting device for double tundish Download PDFInfo
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- CN217412391U CN217412391U CN202220989616.6U CN202220989616U CN217412391U CN 217412391 U CN217412391 U CN 217412391U CN 202220989616 U CN202220989616 U CN 202220989616U CN 217412391 U CN217412391 U CN 217412391U
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- tundish
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Abstract
The utility model discloses a two tundish casting diverging device, include by the long mouth of a river that meets with the ladle supplies the pre-diversion molten steel basin of molten steel, two molten steel reposition of redundant personnel passageways, the entrance point of molten steel reposition of redundant personnel passageway communicates with the inside of pre-diversion molten steel basin so that carry on the drainage to the molten steel, the exit end meets with the tundish lateral wall, the exit end mounting height of molten steel reposition of redundant personnel passageway is less than the mounting height of entrance point so that form the slope form; the supporting frame supports the bottom of the pre-flowing molten steel trough; two molten steel shunting channels are arranged at intervals and can be used for simultaneously casting double tundishes, the installation height of the inlet end of each molten steel shunting channel is three fourths of the total height of the pre-shunting molten steel tank, so that molten steel is always arranged in the pre-shunting molten steel tank, the direct contact of subsequent molten steel and the bottom wall of the pre-shunting molten steel tank is avoided to a certain extent, the purpose of buffering the impact force of the molten steel on the bottom wall of the pre-shunting molten steel tank to reduce the service life of the pre-shunting molten steel tank is achieved, and the structural design is reasonable.
Description
Technical Field
The utility model relates to a steelmaking continuous casting technical field specifically is a package casting diverging device in middle of two.
Background
At present, most continuous casting machines adopt single tundish casting, for small square billet continuous casting, in order to realize the production mode of a single furnace and a single machine, multi-stream tundishes such as 8 streams, 10 streams, 12 streams and the like are mostly adopted, the design of the tundishes is relatively long, and the problems of unreasonable flow field of the tundishes and low deformation service life of the ladle bottom exist. In addition, the continuous casting of the small square billet has a production mode of simultaneous casting of double tundishes, and the matched ladle has a single-nozzle ladle and a double-nozzle ladle, so that the requirement on the maintenance of the ladle is higher, and the cost of refractory materials of the double-nozzle ladle is high. The patent solves the problem of adopting a shunting device to realize the production mode that a single-water-gap steel ladle can simultaneously cast double tundishes.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to prior art not enough, a package casting diverging device in middle of two that can supply package to carry out the casting simultaneously in middle of two is provided.
The technical problem to be solved by the utility model is realized by the following technical proposal that a double-tundish casting flow-dividing device comprises,
a pre-flow molten steel tank for supplying molten steel from a long nozzle connected with a ladle, wherein the notch of the pre-flow molten steel tank is arranged in a shape of big top and small bottom;
the molten steel distributing channels are arranged in parallel, the inlet ends of the molten steel distributing channels are communicated with the inside of the pre-distributing molten steel trough so as to guide molten steel, the outlet ends of the molten steel distributing channels are connected with the side wall of the tundish, and the mounting height of the outlet ends of the molten steel distributing channels is lower than that of the inlet ends so as to form an inclined shape;
and the support frame supports the bottom of the pre-flowing molten steel trough.
The to-be-solved technical problem of the utility model can also be realized through following technical scheme, above a two pouring basket casting diverging device, two molten steel reposition of redundant personnel passageways be located the same lateral wall of pre-diversion molten steel groove.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above a two pouring basket casting diverging device, three fourths of the total height of preflow molten steel groove are installed to the entrance point of molten steel reposition of redundant personnel passageway.
The technical problem to be solved by the utility model can be realized by the following technical proposal, the included angle between the molten steel diversion channel and the horizontal plane is 5-10 degrees.
The to-be-solved technical problem of the utility model can also be realized through following technical scheme, above a two pouring basket casting diverging device, molten steel diverging channel's width be 30mm-100mm, the wall thickness is 20mm-50mm, length is 100mm-200 mm.
The to-be-solved technical problem of the utility model can also be realized through following technical scheme, above a two pouring basket casting diverging device, the steel structure of preflow molten steel groove in advance, its inner wall outside-in has scribbled the high-alumina refractory castable material that thickness is 80mm-150mm and the magnesium material of scribbling that thickness is 30mm-50mm in proper order.
The to-be-solved technical problem of the utility model can also be realized through following technical scheme, above a two pouring basket casting diverging device, the magnesium coating has on entrance point and the exit end inner wall of molten steel reposition of redundant personnel passageway and the outer wall.
Compared with the prior art, the utility model has the advantages that:
1. two middle ladles can be simultaneously cast by the single-water-gap steel ladle;
2. the shunt device is simple and easy to replace, can be replaced at any time according to the service life, and is simple to operate;
3. after the device is additionally arranged, the impact area of the double tundish can be simplified, and the cost of refractory materials is saved;
4. improves the flow field of the tundish and improves the purity of the molten steel.
Drawings
Fig. 1 is a schematic top view of the present invention.
In the figure, 1, a pre-flow molten steel tank; 2. a molten steel diversion channel; 3. a tundish; 4. a support frame.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not constitute a limitation to the right thereof.
Example 1 referring to fig. 1, a dual tundish casting diversion apparatus comprising,
the pre-flow molten steel trough 1 is provided with a long nozzle connected with a ladle for supplying molten steel, the pre-flow molten steel trough 1 can be formed by casting, the length, the width and the height of the pre-flow molten steel trough 1 can be selected according to the casting quantity of the molten steel, so the specific size is not repeated herein, and the notch of the pre-flow molten steel trough 1 is arranged in a shape of big top and small bottom;
the two molten steel shunting channels 2 are arranged in parallel, the two molten steel shunting channels 2 are arranged so that molten steel can be uniformly shunted into the two tundishes 3 and subsequent casting operation can be carried out, the casting efficiency is improved, the inlet end of each molten steel shunting channel 2 is communicated with the inside of the pre-shunting molten steel trough 1 so as to drain the molten steel, the outlet end of each molten steel shunting channel 2 is connected with the side wall of each tundish 3, the mounting height of the outlet end of each molten steel shunting channel 2 is lower than that of the inlet end so as to form an inclined shape, the molten steel can conveniently flow into the tundishes 3 from the main stream, the casting operation of the molten steel is facilitated, and the inclination degrees of the two molten steel shunting channels 2 are the same;
the support frame 4 for supporting the bottom of the pre-flowing molten steel trough 1 can be a square frame built by steel, the design aim is to support the bottom of the pre-flowing molten steel trough 1, and the support height can be selected according to the use requirement.
In embodiment 2, the two molten steel diversion passages 2 are located on the same side wall of the pre-diversion molten steel tank 1, which enables the two tundishes 3 connected with the molten steel diversion passages 2 to be arranged side by side, which enables the layout regularity of the two tundishes 3 to be high, and facilitates the centralized management during the simultaneous casting of the two tundishes 3.
In embodiment 3, the arrangement increases the molten steel outflow height of the pre-tapping molten steel bath 1, so that the pre-tapping molten steel bath 1 always has molten steel with a certain depth, thereby reducing the impact force on the inner wall of the bottom of the pre-tapping molten steel bath 1 when the molten steel is injected into the pre-tapping molten steel bath 1, and slowing down the wear of the pre-tapping molten steel bath 1.
Embodiment 5, the angle between the molten steel diversion channel 2 and the horizontal plane is 10 degrees in the double tundish casting diversion device described in embodiment 1.
In embodiments 4 to 5, specifically, the included angle between the molten steel diversion channel 2 and the horizontal plane can be selected according to the use requirement.
Embodiment 6, the double tundish casting diversion device described in embodiment 1, the molten steel diversion channel 2 has a width of 30mm to 100mm, a wall thickness of 20mm to 50mm, and a length of 100mm to 200mm, and specifically, the molten steel diversion channel 2 has a width of 30mm, a wall thickness of 20mm, and a length of 100 mm.
Embodiment 7, the pre-tapping molten steel bath 1 is of a steel structure, and the inner wall of the pre-tapping molten steel bath is sequentially coated with a high-alumina refractory castable material with a thickness of 80mm to 150mm and a magnesium coating material with a thickness of 30mm to 50mm from outside to inside, and specifically, the inner wall of the pre-tapping molten steel bath is sequentially coated with a high-alumina refractory castable material with a thickness of 80mm and a magnesium coating material with a thickness of 30mm from outside to inside.
Embodiment 8, the double tundish casting diversion device of embodiment 1, wherein the inlet and outlet ends of the molten steel diversion channel 2 have magnesium coating on the inner and outer walls.
When the double-tundish casting flow dividing device is used, molten steel is guided to the pre-flow molten steel tank 1 by the steel ladle through the long nozzle, and when the liquid level of the molten steel in the pre-flow molten steel tank 1 reaches three quarters of the height of the pre-flow molten steel tank 1, the molten steel in the pre-flow molten steel tank 1 automatically flows into the two tundishes 3 through the two molten steel flow dividing channels 2, so that molten steel is supplied for the subsequent molten steel casting operation of the tundishes 3 at the same time, and the double-tundish casting flow dividing device is reasonable in structural design.
Claims (7)
1. The utility model provides a package casting diverging device in middle of two which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a pre-flow molten steel tank for supplying molten steel from a long nozzle connected with a ladle, wherein the notch of the pre-flow molten steel tank is arranged in a shape of big top and small bottom;
the molten steel distributing channels are arranged in parallel, the inlet ends of the molten steel distributing channels are communicated with the inside of the pre-distributing molten steel trough so as to guide molten steel, the outlet ends of the molten steel distributing channels are connected with the side wall of the tundish, and the mounting height of the outlet ends of the molten steel distributing channels is lower than that of the inlet ends so as to form an inclined shape;
and the support frame supports the bottom of the pre-flowing molten steel trough.
2. The double tundish casting shunt device according to claim 1, wherein: the two molten steel shunting channels are positioned on the same side wall of the pre-shunting molten steel trough.
3. The double tundish casting shunt device according to claim 1, characterized in that: the inlet end of the molten steel shunting channel is arranged at three quarters of the total height of the pre-shunting molten steel groove.
4. The double tundish casting shunt device according to claim 1, wherein: the included angle between the molten steel flow dividing channel and the horizontal plane is 5-10 degrees.
5. The double tundish casting shunt device according to claim 1, wherein: the width of the molten steel flow dividing channel is 30mm-100mm, the wall thickness is 20mm-50mm, and the length is 100mm-200 mm.
6. The double tundish casting shunt device according to claim 1, characterized in that: the pre-flow molten steel trough is of a steel structure, and high-aluminum refractory castable with the thickness of 80-150 mm and magnesium coating with the thickness of 30-50 mm are sequentially coated on the inner wall of the pre-flow molten steel trough from outside to inside.
7. The double tundish casting shunt device according to claim 1, wherein: the inner walls and the outer walls of the inlet end and the outlet end of the molten steel shunting channel are provided with magnesium coating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220989616.6U CN217412391U (en) | 2022-04-27 | 2022-04-27 | Pouring and shunting device for double tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220989616.6U CN217412391U (en) | 2022-04-27 | 2022-04-27 | Pouring and shunting device for double tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217412391U true CN217412391U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220989616.6U Active CN217412391U (en) | 2022-04-27 | 2022-04-27 | Pouring and shunting device for double tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217412391U (en) |
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2022
- 2022-04-27 CN CN202220989616.6U patent/CN217412391U/en active Active
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