CN216065453U - Crystallizer with framework type cooling structure - Google Patents
Crystallizer with framework type cooling structure Download PDFInfo
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- CN216065453U CN216065453U CN202122724682.9U CN202122724682U CN216065453U CN 216065453 U CN216065453 U CN 216065453U CN 202122724682 U CN202122724682 U CN 202122724682U CN 216065453 U CN216065453 U CN 216065453U
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- copper mold
- cooling
- tubular copper
- connecting piece
- cooling water
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Abstract
The utility model relates to the technical field of crystallizers for continuous casting, and particularly discloses a crystallizer with a framework-type cooling structure, which comprises a tubular copper mold, an external water jacket, a connecting piece and a connecting bolt, wherein the external water jacket is sleeved outside the tubular copper mold and fixedly connected with the tubular copper mold through the connecting piece and the connecting bolt, a first cooling water channel and a second cooling water channel in the vertical direction are arranged on the outer wall of the tubular copper mold, a serrated surface is arranged on the side wall between two adjacent second cooling water channels, a serrated junction surface corresponding to the serrated surface of the second cooling water channel is arranged at the inner end of the connecting piece, and a threaded hole corresponding to the connecting bolt is arranged at the outer end of the connecting piece. According to the utility model, the special zigzag connecting structure is added between the tubular copper mold and the external water jacket, so that the cooling efficiency of the copper mold is improved, the structural strength and the cooling uniformity of the copper mold are ensured, the production efficiency of continuous casting is improved, and the energy consumption is reduced.
Description
Technical Field
The utility model relates to the technical field of crystallizers for continuous casting, in particular to a crystallizer with a framework type cooling structure.
Background
The mold is used as a continuous casting heart and comprises a tubular copper cooling mold for heat conduction and a device for allowing cooling water to flow on the surface of the tubular copper mold and cooling the tubular copper mold. In order to reduce carbon consumption, reduce energy consumption, improve continuous casting efficiency, improve cooling efficiency of the tubular copper mold and ensure cooling uniformity, the aim is pursued. At present, the cooling efficiency of the tubular copper mold is improved, and the increase of the heat dissipation area of the tubular copper mold is generally finished by grooving the outer surface of the tubular copper mold.
Although the surface area of the tubular copper mould is improved by the slotting structure in the prior art, the service life of the tubular copper mould cannot be ensured because the structural strength of the tubular copper mould is weakened and the use environment of the tubular copper mould has high temperature and high pressure. The common structural strength increasing mode in the prior art is mainly characterized in that a tubular copper mold is connected with an external cooling water jacket through threaded connection, and therefore due to the existence of bolts, the uniformity of a water tank cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a crystallizer with a framework type cooling structure, which is used for improving the cooling efficiency of a tubular copper mold and ensuring the structural strength and the cooling uniformity of the copper mold.
In order to solve the technical problem, the utility model provides a crystallizer with a framework type cooling structure, which comprises a tubular copper mold, an external water jacket, a connecting piece and a connecting bolt, wherein the external water jacket is sleeved outside the tubular copper mold and is fixedly connected with the tubular copper mold through the connecting piece and the connecting bolt; the outer wall of the tubular copper mold is provided with a first cooling water channel and a second cooling water channel in the vertical direction, a sawtooth surface is arranged on the side wall between the two adjacent second cooling water channels, a sawtooth joint surface corresponding to the sawtooth surface of the second cooling water channel is arranged at the inner end of the connecting piece, a threaded hole corresponding to the connecting bolt is arranged at the outer end of the connecting piece, the two connecting pieces can be clamped and fixed at the side wall between the two adjacent second cooling water channels through the sawtooth joint surface, the inner wall of the external water jacket is provided with a groove corresponding to the outer end of the connecting piece, a through hole corresponding to the connecting bolt is arranged at the groove of the external water jacket, and the external water jacket can be fixedly connected with the connecting piece through the connecting bolt.
Preferably, the tubular copper mold has four faces, two adjacent second cooling water channels are arranged in the middle of each face, and one or more first cooling water channels are further arranged on two sides of each two adjacent second cooling water channels.
Preferably, the connecting piece is a long strip corresponding to the second cooling water channel, and the sawtooth junction surfaces of the two connecting pieces are combined together relatively, and then the section is concave.
Preferably, the threaded holes at the outer end of the connecting piece are a plurality of and are uniformly arranged along the vertical direction, and the through holes of the external water jacket correspond to the threaded holes in position.
Preferably, the distance between the first cooling water channel and the second cooling water channel and the inner wall of the tubular copper mold is less than 10 mm.
According to the crystallizer with the framework type cooling structure, the special zigzag connecting structure is additionally arranged between the tubular copper mold and the external water jacket, so that the cooling efficiency of the copper mold is improved, the structural strength and the cooling uniformity of the copper mold are ensured, the production efficiency of continuous casting is improved, and the energy consumption is reduced.
Drawings
FIG. 1 is a structural view of a crystallizer having a skeleton-type cooling structure according to an embodiment of the present invention;
FIG. 2 is a structural view of a tubular copper mold of a mold having a skeleton-type cooling structure according to an embodiment of the present invention;
FIG. 3 is a structural view of a side of a connecting member of a mold having a skeleton-type cooling structure according to an embodiment of the present invention;
FIG. 4 is a structural view of the other side of a connecting member of a mold having a skeleton-type cooling structure according to an embodiment of the present invention;
fig. 5 is a sectional view at a connection part of a mold having a skeleton-type cooling structure according to an embodiment of the present invention.
In the figure, 1: a tubular copper mold; 2: an external water jacket; 3: a connecting member; 4: a connecting screw; 5: a sawtooth joint surface; 6: the upper end surface of the copper mold; 7: the lower end face of the copper mold; 8: a first cooling channel; 9: a second cooling flume.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 5, the mold having the skeleton-type cooling structure of the present embodiment includes: the device comprises a tubular copper mould 1, an external water jacket 2, a connecting piece 3 and a connecting bolt 4, wherein the external water jacket 2 is sleeved outside the tubular copper mould 1 and is fixedly connected with the tubular copper mould 1 through the connecting piece 3 and the connecting bolt 4; the outer wall of the tubular copper mold 1 is provided with a first cooling water channel 8 and a second cooling water channel 9 in the vertical direction, a sawtooth surface is arranged on the side wall between two adjacent second cooling water channels 9, a sawtooth joint surface 5 corresponding to the sawtooth surface of the second cooling water channel 9 is arranged at the inner end of the connecting piece 3, a threaded hole corresponding to the connecting bolt 4 is arranged at the outer end of the connecting piece 3, the two connecting pieces 3 can be clamped and fixed at the side wall between the two adjacent second cooling water channels 9 through the sawtooth joint surface 5, the inner wall of the external water jacket 2 is provided with a groove corresponding to the outer end of the connecting piece 3, the external water jacket 2 is provided with a through hole corresponding to the connecting bolt 4 at the groove, and the external water jacket 2 can be fixedly connected with the connecting piece 3 through the connecting bolt 4.
The tubular copper mold 1 has four surfaces, two adjacent second cooling water channels 9 are arranged in the middle of each surface, and one or more first cooling water channels 8 are further arranged on two sides of each two adjacent second cooling water channels 9. The connecting pieces 3 are strip-shaped corresponding to the second cooling water channel 9, and the section of the sawtooth joint surfaces 5 of the two connecting pieces 3 is concave after being combined relatively. The threaded holes at the outer end of the connecting piece 3 are uniformly arranged along the vertical direction, and the through holes of the external water jacket 2 correspond to the threaded holes.
The distance between the first cooling water channel 8 and the second cooling water channel 9 and the inner wall of the tubular copper mold 1 is less than 10 mm. The heat transfer efficiency of the tubular copper mould 1 can be ensured, and the heat transfer efficiency of the common tubular copper mould is less than 5 megawatts/mm2In this embodiment, the heat transfer efficiency of the tubular copper mold 1 is more than 8 megawatts/mm2. In addition, the first cooling water channels 8 and the second cooling water channels 9 are uniformly arranged on the tubular copper mold 1, and account for more than 50% of the outer surface area of the tubular copper mold 1, so that the cooling uniformity is ensured, efficient uniform cooling is realized, deformation is avoided, a stable use state is ensured, continuous casting high-pulling-speed continuous production can be realized, the continuous casting efficiency is improved, and the energy consumption is reduced. At least one connecting piece is arranged on each surface of the tubular copper mould 13. Each side is configured to withstand a deformation force of at least 15 tons.
Liquid metal (more than 1300 ℃) needing casting and cooling enters the inner cavity of the tubular copper mold 1 from the upper end surface 6 of the copper mold of the tubular copper mold 1, high-pressure (more than 1.5Mpa) high-flow-rate (more than 15m/s) cooling water flows through the first cooling water channel 8 and the second cooling water channel 9 between the tubular copper mold 1 and the external water jacket 2, the liquid metal in the inner cavity of the tubular copper mold 1 is cooled into an ingot with a certain solid metal shell on the surface, and the ingot is cast and molded from the inner cavity of the lower end surface 7 of the copper mold of the tubular copper mold 1. The tubular copper mold 1 and the connecting piece 3 are fixed through a sawtooth joint surface 5, and the sawtooth joint surface 5 is in sawtooth connection; the external water jacket 2 and the connecting piece 3 are fastened and connected by adopting a connecting bolt 4; the tubular copper mold 1 and the external water jacket 2 can be completely fixed through the connecting piece 3. When the tubular copper mold 1 is subjected to water pressure between the first cooling water channel 8 and the second cooling water channel 9 and thermal stress is generated on four surfaces of the tubular copper mold 1 by high-temperature liquid molten steel in the inner cavity of the tubular copper mold, the four surfaces of the tubular copper mold 1 tend to move towards the inner cavity of the tubular copper mold and deform, and the deformation tendency is transmitted to the external water jacket 2 through the connecting piece 3. Since the wall thickness of the outer water jacket 2 exceeds 25mm, its own structural strength is sufficiently high to withstand the deformation force from the connecting member 3. Therefore, a relatively stable first cooling water channel 8 and a relatively stable second cooling water channel 9 are formed between the tubular copper mold 1 and the external water jacket 2, and the tubular copper mold 1 is guaranteed not to deform under the use conditions of high temperature, high pressure and high water flow rate.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. The crystallizer with the framework type cooling structure is characterized by comprising a tubular copper mold (1), an external water jacket (2), a connecting piece (3) and a connecting bolt (4), wherein the external water jacket (2) is sleeved outside the tubular copper mold (1) and is fixedly connected with the tubular copper mold (1) through the connecting piece (3) and the connecting bolt (4); the outer wall of the tubular copper mold (1) is provided with a first cooling water channel (8) and a second cooling water channel (9) in the vertical direction, the side wall between the two adjacent second cooling water channels (9) is provided with a sawtooth surface, the inner end of the connecting piece (3) is provided with a sawtooth joint surface (5) corresponding to the sawtooth surface of the second cooling water channel (9), the outer end of the connecting piece (3) is provided with a threaded hole corresponding to the connecting bolt (4), the two connecting pieces (3) can be clamped and fixed at the side wall between the two adjacent second cooling water channels (9) through the sawtooth joint surface (5), the inner wall of the external water jacket (2) is provided with a groove corresponding to the outer end of the connecting piece (3), the groove of the external water jacket (2) is provided with a through hole corresponding to the connecting bolt (4), and the external water jacket (2) can be fixedly connected with the connecting piece (3) through the connecting bolt (4) .
2. Crystallizer with skeleton-type cooling structure as in claim 1, characterized in that the tubular copper mold (1) has four faces, in the middle of each of which two adjacent second cooling channels (9) are provided, and one or more first cooling channels (8) are provided on both sides of two adjacent second cooling channels (9).
3. The crystallizer with skeleton-type cooling structure according to claim 1, characterized in that said connecting pieces (3) are elongated corresponding to said second cooling channels (9), and the section of the zigzag-shaped bonding surfaces (5) of the two connecting pieces (3) is concave when they are combined together.
4. The crystallizer with a skeleton-type cooling structure according to claim 3, characterized in that the threaded holes of the outer end of the connecting piece (3) are multiple and uniformly arranged along the vertical direction, and the through holes of the outer water jacket (2) correspond to the threaded holes in position.
5. Crystallizer with skeleton-type cooling structure according to claim 1, characterized in that the distance of the first cooling water channels (8) and the second cooling water channels (9) to the inner wall of the tubular copper mold (1) is less than 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724682.9U CN216065453U (en) | 2021-11-09 | 2021-11-09 | Crystallizer with framework type cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724682.9U CN216065453U (en) | 2021-11-09 | 2021-11-09 | Crystallizer with framework type cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216065453U true CN216065453U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122724682.9U Active CN216065453U (en) | 2021-11-09 | 2021-11-09 | Crystallizer with framework type cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216065453U (en) |
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2021
- 2021-11-09 CN CN202122724682.9U patent/CN216065453U/en active Active
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