CN212945403U - Tundish diversion type special-shaped dam - Google Patents
Tundish diversion type special-shaped dam Download PDFInfo
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- CN212945403U CN212945403U CN202020338804.3U CN202020338804U CN212945403U CN 212945403 U CN212945403 U CN 212945403U CN 202020338804 U CN202020338804 U CN 202020338804U CN 212945403 U CN212945403 U CN 212945403U
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Abstract
The utility model discloses a tundish diversion type special-shaped dam, which comprises a first dam and a second dam; the first dam is a trapezoidal dam, and an included angle between a first inclined surface of the trapezoidal dam which is firstly contacted with liquid and a horizontal plane is an acute angle; the second dam is a triangular dam, and an included angle between a second inclined surface of the triangular dam, which is firstly contacted with liquid, and a horizontal plane is an obtuse angle; the first dam and the second dam are fixedly connected or integrally arranged, the second dam is arranged on the upper end face of the second dam, and the thickness of the first dam is smaller than that of the first dam. The second dam increases the rising angle of the molten steel, increases the volume of the piston area, reduces the volume of a dead zone, prolongs the retention time of the molten steel, ensures that the molten steel is fully mixed and uniform in the tundish, and is beneficial to floating of inclusions.
Description
Technical Field
The utility model relates to a refractory material technical field especially relates to a middle package water conservancy diversion formula dysmorphism retaining dam.
Background
In the tundish continuous casting technology, a tundish prefabricated member becomes an indispensable part of a tundish flow control element, but in the tundish prefabricated member, the cost of the prefabricated member is increased and the construction difficulty of the tundish is increased due to the fact that the types of the prefabricated members are various and the shapes of the prefabricated members are complex. Reducing the number of tundish preforms improves this problem.
In the continuous casting process, because the temperature of molten steel is too high, the molten steel can corrode the tundish prefabricated member, and the corroded part of the prefabricated member can become harmful impurities which are not beneficial to molten steel purification. Therefore, to solve this problem, the reduction of preform flow control elements is a primary task for many steel mills.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tundish diversion type special-shaped dam comprises a first dam and a second dam;
the first dam is a trapezoidal dam, and an included angle between a first inclined surface of the trapezoidal dam which is firstly contacted with liquid and a horizontal plane is an acute angle;
the second dam is a triangular dam, and an included angle between a second inclined surface of the triangular dam, which is firstly contacted with liquid, and a horizontal plane is an obtuse angle;
the first dam and the second dam are fixedly connected or integrally arranged, the second dam is arranged on the upper end face of the second dam, and the thickness of the first dam is smaller than that of the first dam.
Furthermore, a buffering platform is further arranged on the upper end face of the first dam retaining wall, and liquid flows through the buffering platform and then contacts the second inclined surface.
Further, the acute angle is in the range of 30 ° to 80 °.
Further said obtuse angle is in the range 120-140 °.
Further said first inclined surface is provided with evenly distributed bosses.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses in, slow down the flow velocity of liquid through the first dam that sets up to prevent that it from making to splash at the impact dam.
2. The utility model discloses in, the second that sets up through the dam has increased the angle of raising upward of molten steel, has increased piston area volume, has reduced the extension of dead zone volume molten steel dwell time, makes the molten steel fully mix in the tundish all, is favorable to the inclusion come-up.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic view of the overall structure of a tundish diversion type special-shaped dam provided by the utility model;
fig. 2 is a cross-sectional view of the overall structure of the tundish diversion type special-shaped dam provided by the utility model;
in the figure: 1 is a first dam, 11 is a first inclined surface, 12 is a buffer platform, 2 is a second dam, 21 is a second inclined surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
With reference to figures 1-2 of the drawings,
in order to achieve the above purpose, the utility model adopts the following technical scheme:
a tundish diversion type special-shaped dam comprises a first dam 1 and a second dam 2;
the first dam 1 is a trapezoidal dam, and an included angle between a first inclined surface 11, which is firstly contacted with liquid, and a horizontal plane is an acute angle; when liquid flows in the tundish, impact is firstly generated on the wall enclosed by the trapezoidal dam and the tundish, the liquid is prevented from splashing out of the enclosed structure through the acute angle arrangement, and the flowing speed of the liquid is reduced.
The second dam 2 is a triangular dam, and an included angle between a second inclined surface 21 of the triangular dam, which is firstly contacted with liquid, and a horizontal plane is an obtuse angle; after the liquid passes through the first dam body, the liquid flows to the second dam 2 and flows out after passing through the second inclined surface.
Further, the upper end surface of the first dam 1 is further provided with a buffer platform 12, and the liquid flowing through the buffer platform 12 contacts the second inclined surface 21.
Further, the acute angle is in the range of 30-80 degrees.
Further, the obtuse angle ranges from 120 degrees to 140 degrees.
Further, the first inclined surface 11 is provided with uniformly dispersed bosses.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a special-shaped dam of middle package water conservancy diversion formula which characterized in that: comprises a first dam and a second dam;
the first dam is a trapezoidal dam, and an included angle between a first inclined surface of the trapezoidal dam which is firstly contacted with liquid and a horizontal plane is an acute angle;
the second dam is a triangular dam, and an included angle between a second inclined surface of the triangular dam, which is firstly contacted with liquid, and a horizontal plane is an obtuse angle;
the first dam and the second dam are fixedly connected or integrally arranged, the second dam is arranged on the upper end face of the second dam, and the thickness of the first dam is smaller than that of the first dam.
2. The tundish guide type irregular dam according to claim 1, wherein a buffer platform is further arranged on the upper end surface of the first dam, and the liquid contacts the second inclined surface after passing through the buffer platform.
3. A tundish guide flow type irregular dam according to claim 1, wherein the acute angle is in the range of 30 ° to 80 °.
4. The tundish flow-directing type irregular dam of claim 1, wherein the obtuse angle ranges from 120 ° to 140 °.
5. The tundish guide-type contour dam of claim 1, wherein said first inclined surface is provided with uniformly dispersed bosses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020338804.3U CN212945403U (en) | 2020-03-17 | 2020-03-17 | Tundish diversion type special-shaped dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020338804.3U CN212945403U (en) | 2020-03-17 | 2020-03-17 | Tundish diversion type special-shaped dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212945403U true CN212945403U (en) | 2021-04-13 |
Family
ID=75340610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020338804.3U Active CN212945403U (en) | 2020-03-17 | 2020-03-17 | Tundish diversion type special-shaped dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212945403U (en) |
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2020
- 2020-03-17 CN CN202020338804.3U patent/CN212945403U/en active Active
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