CN211661078U - Long-life right angle cushion cap immersion nozzle - Google Patents
Long-life right angle cushion cap immersion nozzle Download PDFInfo
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- CN211661078U CN211661078U CN201922363199.5U CN201922363199U CN211661078U CN 211661078 U CN211661078 U CN 211661078U CN 201922363199 U CN201922363199 U CN 201922363199U CN 211661078 U CN211661078 U CN 211661078U
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Abstract
The utility model discloses a long-life right angle cushion cap immersion nozzle, including the mouth of a river body that resistant material was made and the metal casing of cladding mouth of a river body, mouth of a river body top is equipped with the right angle cushion cap that resistant material was made, and metal casing has the L shape shell of cladding right angle cushion cap bottom surface and side, and the interior angle department integrated into one piece of its characterized in that L shape shell or pad are equipped with the sloping block, and be equipped with the inclined plane with this sloping block surface laminating on the right angle cushion cap. The utility model discloses can effectively reduce the inside resistant material's of metal casing fracture rate, increase of service life. And it is only to carry out optimization improvement to metal casing interior angle structure, does not change the appearance, so still can be applicable to original support frock, avoids equipment to wash out too early to enterprise's manufacturing cost has been practiced thrift.
Description
Technical Field
The utility model relates to a long-life right angle cushion cap immersion nozzle.
Background
The submerged nozzle is positioned between a tundish and a crystallizer in a continuous casting process, is a guide pipe for molten steel to flow from the tundish to the crystallizer, and has the following functions: secondary oxidation of molten steel is prevented; controlling the flowing state and the injection speed of the molten steel; promotes the floating of inclusions, prevents the non-metallic inclusions of the casting powder from being involved in molten steel, and is important equipment for controlling steel casting in the continuous casting process. With the progress of science and technology, the requirements of industries such as automobiles, household appliances and the like on the surface quality of a cold-rolled sheet are higher and higher, and the quantity of inclusions causing surface defects of the cold-rolled sheet in a casting blank is required to be reduced. The rolling slag is an important defect influencing the surface quality of the cold-rolled sheet, the quantity of large impurities on the surface layer of a casting blank is unreasonable with the flow field of the crystallizer, the large liquid level fluctuation is related with the rolling slag, and the reasonable submerged nozzle is an important factor influencing the flow field of the crystallizer.
In actual installation, a circle of bearing platform is formed on the periphery of the top of the body of the submerged nozzle, so that the submerged nozzle is supported and positioned by a supporting tool, and in order to enhance the bearing capacity of a refractory material of the submerged nozzle, the conventional submerged nozzle usually wraps a metal shell on the outer side of the bearing platform part (refractory material) on the top of the body, the metal shell is contacted with a supporting groove part on the supporting tool, and due to the mutual action of forces, the reaction force of the supporting groove part is also transmitted to the inner refractory material through the metal shell. The factors influencing the reaction force include the self weight of the nozzle and the compression stress formed by the flow of molten steel.
In the conventional submerged nozzle, the lower edge of the outer periphery of the platform is a right angle, and the wrap angle of the metal casing with the corresponding outer contour is also a right angle, so the conventional submerged nozzle is also called a right-angle platform submerged nozzle 7, as shown in fig. 1. However, in practical use, the reaction force of the supporting groove part on the traditional supporting tool 8 matched with the traditional supporting tool is directly vertically and upwards transmitted to the refractory material inside the bearing platform part through the metal shell, the acting force is large, and the refractory material is easily damaged and cracked in the long-term use process, and even a water gap is scrapped in serious cases.
Of course, in order to solve the above problems, the lower edge of the outer periphery of the platform of the present new type of submerged nozzle is designed with a transitional inclined surface, which is called as a sloped platform submerged nozzle 9, as shown in fig. 2. The supporting groove part on the novel supporting tool 10 matched with the supporting tool is changed into a chute jointed with the transition inclined plane, when the novel supporting tool is actually used, the novel supporting tool 10 applies oblique acting force to the refractory material at the position of the water gap bearing platform through the metal shell, the force is decomposed into two relatively small component forces in the vertical direction and the horizontal direction, the bearing force of the refractory material is weakened, and the cracking rate of the refractory material in the submerged water gap is greatly reduced in practice.
However, there is a problem that the above-mentioned inclined platform submerged nozzle 9 must be used with a new supporting tool 10, and cannot be adapted to the original conventional supporting tool 8. And at present, the number of old right-angle bearing platform submerged nozzles 7 and traditional supporting tools 8 in the industry is still huge, and if the old right-angle bearing platform submerged nozzles are completely updated, the enterprises face huge production cost pressure. And a better solution at present is to optimize the structure of traditional right angle cushion cap immersion nozzle 7 to it still can be applicable to original tradition and support frock 8, again can greatly reduced resistant material cracking rate when practicing thrift the manufacturing cost of enterprise.
Disclosure of Invention
The utility model discloses the purpose is: the utility model provides a long-life right angle cushion cap immersion nozzle, it can effectively reduce the cracking rate of the inside resistant material of metal casing, increase of service life.
The technical scheme of the utility model is that: the utility model provides a long-life right angle cushion cap immersion nozzle, includes the metal casing of mouth of a river body that resistant material made and cladding mouth of a river body, and mouth of a river body top is equipped with the right angle cushion cap that resistant material made, and metal casing has the L shape shell of cladding right angle cushion cap bottom surface and side, its characterized in that, the interior angle department integrated into one piece of L shape shell or pad are equipped with the sloping block, and be equipped with the inclined plane with this sloping block surface laminating on the right angle cushion cap.
Further, in the utility model discloses in the sloping block surface is 45 +/-5 for the contained angle of horizontal plane, the upper and lower surface of right angle cushion cap is the horizontal plane.
Furthermore, in the present invention, the included angle of the surface of the swash block with respect to the horizontal plane is 45 ° ± 3 °, and the upper surface of the right-angle bearing platform is the horizontal plane.
Further, in the utility model discloses in right angle cushion cap integrated into one piece is on mouth of a river body.
Furthermore, in the present invention, the right-angle platform is an independent annular member, and the inner peripheral surface of the annular member is bonded and fixed to the outer peripheral surface of the nozzle body.
Furthermore, in the present invention, the inner peripheral surface of the annular member is an inner inverted conical surface, and the outer inverted conical surface attached to the inner inverted conical surface is provided in the outer periphery of the nozzle body.
The utility model discloses when in actual use, it is installed on supporting the frock with conventional technique, contacts the outside metal casing of right angle cushion cap through the slot part that supports on the frock to bear the weight of whole immersion nozzle. The reaction force transmitted from the metal shell is an oblique component force transmitted to the refractory material through the inclined surface on the surface of the oblique block, and the acting force is smaller than the original force in the vertical direction, so that the pressure of the refractory material is effectively reduced, and the cracking rate of the refractory material is reduced.
The utility model has the advantages that:
(1) the utility model discloses L shape shell portion internal angle department on metal casing sets up the sloping block, passes through the inclined plane laminating contact with the resistant material of inside right angle cushion cap department, and such change design has reduced and has installed when the mouth of a river on supporting the frock after, and the power that comes is applyed through metal casing to the support frock that resistant material bore, has effectively reduced the resistant material fracture rate in certain live time, has prolonged the life-span at the mouth of a river.
(2) The utility model discloses only optimize the improvement to the metal casing interior angle structure of present right angle cushion cap immersion nozzle, do not change metal casing's appearance, so still can be applicable to original support frock, avoid equipment to eliminate too early to the manufacturing cost of enterprise has been practiced thrift greatly.
(3) The utility model discloses well right angle cushion cap is preferred to be independent annular component, and it is fixed with bonding again after mouth of a river body shaping separately, has effectively reduced the whole shaping degree of difficulty of immersion nozzle like this. And adopt the back taper contact between right angle cushion cap inner periphery and the mouth of a river body, can further reduce the power of transmitting to mouth of a river body resistant material, reduce the fracture rate of mouth of a river body resistant material, prolong its life.
Drawings
The invention will be further described with reference to the following drawings and examples:
FIG. 1 is a schematic view of a conventional right-angle platform submerged nozzle (the arrow direction in the figure is the direction of the force applied to the refractory);
FIG. 2 is a schematic view showing an installation structure of a conventional submerged nozzle of a sloped platform (the direction of an arrow in the figure is a direction in which a refractory is stressed);
FIG. 3 is a sectional view of the structure of the present invention;
fig. 4 is an enlarged view of the bearing material at the middle right-angle bearing platform of the present invention (the arrow direction in the figure is the bearing direction of the bearing material).
Wherein: 1. a nozzle body; 2. a water inlet; 3. a right-angle bearing platform; 4. a metal housing; 4a, an L-shaped shell portion; 5. a sloping block; 6. a water outlet; 7. a right-angle bearing platform immersion type water gap; 8. traditional supporting tools; 9. a beveled platform immersion nozzle; 10. new-type support frock.
Detailed Description
Example (b): the following description will be made with reference to fig. 3 to 4 for a specific embodiment of a long-life right-angle platform submerged nozzle provided by the present invention:
the utility model provides a long-life right angle cushion cap immersion nozzle, it is the configuration optimization who does on traditional right angle cushion cap immersion nozzle improves, so as with conventional technique, it has mouth of a river body 1 made by resistant material and cladding mouth of a river body 1's metal casing 4, and the bottom of mouth of a river body 1 sets up delivery port 6, and the top is equipped with the right angle cushion cap 3 that resistant material made, and mouth of a river body 1 center is the molten steel runner, and molten steel runner top is then water inlet 2. The metal shell 4 has an L-shaped shell 4a covering the bottom and side surfaces of the rectangular pedestal 3 at the upper part.
The utility model discloses a core improves and lies in that the interior angle department integrated into one piece of L shape shell portion 4a is equipped with sloping block 5, and is equipped with the inclined plane with 5 surface laminatings to one side of this on the right angle cushion cap 3. In addition, in this embodiment, an included angle between the surface of the inclined block 5 and a horizontal plane is 45 °, and both the upper surface and the lower surface of the right-angle bearing platform 3 are horizontal planes.
As shown in fig. 3, the right angle platform 3 in this embodiment is a separate annular member, and the inner circumferential surface of the annular member is bonded and fixed to the outer circumferential surface of the nozzle body 1. The inner circumferential surface of the annular member is an inner inverted conical surface, and the outer circumference of the nozzle body 1 is provided with an outer inverted conical surface attached to the inner inverted conical surface.
The utility model discloses when in actual use, it is installed on traditional support frock 8 with conventional technique, can refer to fig. 1 and show, supports the slot part on the frock 8 through the tradition and contacts right angle cushion cap 3 outside metal casing 4 to bear the weight of whole immersion nozzle. The reaction force transmitted from the metal shell 4 is an oblique component force transmitted to the refractory material through the inclined surface of the inclined block 5, as shown in fig. 4, the reaction force is smaller than the force in the original vertical direction, so that the pressure of the refractory material is effectively reduced, and the cracking rate of the refractory material is reduced.
Furthermore, the utility model discloses only optimize the improvement to 4 interior angle structures of metal casing of present right angle cushion cap immersion nozzle, do not change metal casing 4's appearance, so still can be applicable to tradition and support frock 8, avoid equipment to eliminate prematurely to the manufacturing cost of enterprise has been practiced thrift greatly. Meanwhile, the right-angle bearing platform 3 in the embodiment is preferably an independent annular component, and the independent annular component and the water gap body 1 are respectively formed and then are bonded and fixed, so that the integral forming difficulty of the submerged nozzle is effectively reduced. And adopt the back taper contact between right angle cushion cap 3 inner periphery and the mouth of a river body 1, can further reduce the power of transmitting to mouth of a river 1 resistant material, reduce the fracture rate of mouth of a river 1 resistant material, prolong its life.
The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a long-life right angle cushion cap immersion nozzle, metal casing (4) including mouth of a river body (1) that resistant material made and cladding mouth of a river body (1), mouth of a river body (1) top is equipped with right angle cushion cap (3) that resistant material made, and metal casing (4) have L shape shell (4 a) of cladding right angle cushion cap (3) bottom surface and side, its characterized in that, the interior angle department integrated into one piece of L shape shell (4 a) or pad are equipped with sloping block (5), and be equipped with on right angle cushion cap (3) with the inclined plane of this sloping block (5) surface laminating.
2. The long life right angle platform submerged nozzle of claim 1, characterized in that the angle of the surface of said sloping block (5) is 45 ° ± 5 ° with respect to the horizontal plane, and the upper and lower surfaces of said right angle platform (3) are both horizontal planes.
3. A long life right angle platform submerged entry nozzle according to claim 2, characterized in that the angle of the surface of said ramp (5) with respect to the horizontal is 45 ° ± 3 °, the upper surface of said right angle platform (3) being the horizontal.
4. A long life right angle platform immersion nozzle according to claim 1, characterized in that said right angle platform (3) is integrally formed on the nozzle body (1).
5. A long life right angle platform submerged entry nozzle as claimed in claim 1, wherein said right angle platform (3) is a separate annular member having its inner circumferential surface bonded and fixed to the outer circumferential surface of the nozzle body (1).
6. The long life right angle platform submerged entry nozzle of claim 5, characterized in that the inner peripheral surface of said annular member is an inner inverted conical surface, and the outer periphery of the nozzle body (1) has an outer inverted conical surface fitting the inner inverted conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363199.5U CN211661078U (en) | 2019-12-25 | 2019-12-25 | Long-life right angle cushion cap immersion nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363199.5U CN211661078U (en) | 2019-12-25 | 2019-12-25 | Long-life right angle cushion cap immersion nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211661078U true CN211661078U (en) | 2020-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922363199.5U Active CN211661078U (en) | 2019-12-25 | 2019-12-25 | Long-life right angle cushion cap immersion nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211661078U (en) |
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2019
- 2019-12-25 CN CN201922363199.5U patent/CN211661078U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215200 No.6 JINZI Road, FENHU Economic Development Zone, Wujiang City, Suzhou City, Jiangsu Province Patentee after: Shanghai Baoming refractory Suzhou Co.,Ltd. Address before: 215200 No.6 JINZI Road, FENHU Economic Development Zone, Wujiang City, Suzhou City, Jiangsu Province Patentee before: SUZHOU BAOMING HIGH-TEMPERATURE CERAMIC CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |