CN212839366U - External sealing gasket for long ladle nozzle - Google Patents
External sealing gasket for long ladle nozzle Download PDFInfo
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- CN212839366U CN212839366U CN202021165833.0U CN202021165833U CN212839366U CN 212839366 U CN212839366 U CN 212839366U CN 202021165833 U CN202021165833 U CN 202021165833U CN 212839366 U CN212839366 U CN 212839366U
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- bowl
- mouth
- sealing gasket
- long
- cylindrical side
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Abstract
An external sealing gasket for a long ladle nozzle is sleeved on a bowl opening of the long ladle nozzle, the section of the external sealing gasket is of an L-shaped structure, the external sealing gasket of the L-shaped structure comprises an annular plane and a cylindrical side face, the annular plane is arranged on the upper end face of the bowl opening, the cylindrical side face is sleeved on the outer side edge of the bowl opening, a boss is arranged on the outer side wall of the bowl opening, and a bayonet used for being clamped on the boss is arranged on the cylindrical side face; the annular plane and the cylindrical side face are of an integrated structure. The utility model discloses changing the internally mounted sealing washer of tradition installation inside the bowl mouth at long mouth of a river into installing the outer mounted sealing pad on the bowl mouth at long mouth of a river, solved the middle and later stage bowl mouth structure that long mouth of a river used and have obvious change, lead to the sealed effect variation of sealing washer, breathe in seriously, molten steel secondary oxidation degree increases, has adverse effect's problem to steel quality.
Description
Technical Field
The utility model relates to an outer dress formula of adorning that ladle long nozzle used is sealed fill up.
Background
The inclusions have great harm to the quality of steel products, and are particularly large inclusions which are not uniformly distributed. The sources of the inclusions in the steel can be divided into endogenous inclusions and foreign inclusions, the large inclusions which are not uniformly distributed mainly come from the foreign inclusions, and secondary oxidation of the molten steel is a main way for generating the foreign inclusions. Therefore, the modern steelmaking technology adopts the whole-process protective casting technology to reduce the secondary oxidation degree of the molten steel. The ladle long nozzle protection casting technology is a part of the whole-course protection casting technology, namely, a ladle and a tundish are connected through the ladle long nozzle, so that the molten steel is prevented from contacting with air in the process of flowing into the tundish from the ladle, and meanwhile, a sealing gasket is arranged at the contact surface of the long nozzle and the ladle to prevent air suction, so that the secondary oxidation degree is reduced.
The sealing gasket of the long nozzle used at present is of an internal type, and the sealing gasket needs to be replaced after one furnace is poured because the long nozzle needs to continuously cast multiple furnaces of molten steel. Because the attached cold steel and steel slag of the long nozzle bowl mouth need to be swept by oxygen after the steel of each furnace is poured, the bowl mouth structure can be obviously changed in the middle and later periods of the long nozzle use, the sealing effect of the sealing gasket can be poor, the air suction is serious, the secondary oxidation degree of the molten steel is increased, and the adverse effect on the steel quality is realized. Therefore, the sealing effect of the sealing gasket is poor in the middle and later stages of the using process of the ladle long nozzle, and the problem to be solved urgently is solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses its aim at provides an outer dress formula of packing up that ladle long nozzle used has solved the middle and later stage bowl mouth structure that long nozzle used and has had obvious change, leads to the sealed effect variation of sealing washer, breathes in seriously, and molten steel secondary oxidation degree increases, has adverse effect's problem to steel quality.
The technical scheme adopted for achieving the purpose is that the external packing gasket for the ladle long nozzle is sleeved on a bowl opening of the ladle long nozzle, the section of the external packing gasket is of an L-shaped structure, the external packing gasket of the L-shaped structure comprises an annular plane and a cylindrical side face, the annular plane is arranged on the upper end face of the bowl opening, the cylindrical side face is sleeved on the outer side edge of the bowl opening, a boss is arranged on the outer side wall of the bowl opening, and a bayonet used for being clamped on the boss is arranged on the cylindrical side face; the annular plane and the cylindrical side face are of an integrated structure.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
1. The externally-mounted sealing gasket is arranged outside the upper end of the long-nozzle bowl opening, is not influenced by structural change in the long-nozzle bowl opening, solves the problem of poor sealing effect of the internally-mounted sealing ring caused by structural change of the long-nozzle bowl opening part at present, and increases the use stability of the sealing gasket;
2. the externally-mounted sealing gasket has a simple structure, can be slightly modified on the basis of the prior art, and has low manufacturing cost;
3. the bowl mouth of long mouth of a river is more stable at its life-span exterior structure, and becomes the top horizontal plane by original inner inclined plane with the fitting surface that sealed pad contacted, and the cooperation is inseparabler, has further strengthened the sealed effect of sealed pad.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a front view of the structure of the present invention;
fig. 2 is a bottom view of the structure of the present invention;
FIG. 3 is a schematic view of the structure of the present invention installed on the bowl mouth;
FIG. 4 is a schematic structural view of the utility model applied to the connection between the ladle and the tundish at the ladle long nozzle;
fig. 5 is a schematic view showing a structure in which an internally installed type packing currently used in the related art is installed in a bowl opening.
Detailed Description
The present invention will be further described with reference to the following embodiments and the accompanying drawings.
An externally-mounted sealing gasket for a ladle long nozzle is disclosed, as shown in fig. 1-4, the externally-mounted sealing gasket 1 is sleeved on a bowl opening 2 of the ladle long nozzle, the section of the externally-mounted sealing gasket 1 is of an L-shaped structure, the externally-mounted sealing gasket 1 of the L-shaped structure comprises an annular plane 11 and a cylindrical side surface 12, the annular plane 11 is arranged on the upper end surface of the bowl opening 2, the cylindrical side surface 12 is sleeved on the outer side edge of the bowl opening 2, a boss 21 is arranged on the outer side wall of the bowl opening 2, and a bayonet 13 used for being clamped on the boss 21 is arranged on the cylindrical side surface 12; the annular plane 11 and the cylindrical side surface 12 are of an integral structure.
External dress formula sealed 1 of filling up include annular plane 11 and tube-shape side 12 of integral type structure, annular plane 11 hugs closely the top end face of bowl mouth 2 during the use, 12 suits of tube-shape side are on the lateral wall of bowl mouth 2, bayonet socket 13 on the tube-shape side 12 clamps on the boss 21 on 2 lateral walls of bowl mouth. The utility model discloses changing the inside built-in sealing washer of the bowl mouth at long mouth of a river at traditional chinese mounting into installing the sealed pad of the external formula on the bowl mouth at long mouth of a river, built-in sealing washer structure is as shown in fig. 5, has avoided the middle and later stage bowl mouth inner structure that long mouth of a river used to have obvious change, leads to the sealed effect variation of sealing washer, breathes in seriously, and molten steel secondary oxidation degree increases, has adverse effect to steel quality.
Claims (1)
1. An externally-mounted sealing gasket for a ladle long nozzle is characterized in that the section of the externally-mounted sealing gasket (1) is of an L-shaped structure, the externally-mounted sealing gasket (1) of the L-shaped structure comprises an annular plane (11) and a cylindrical side surface (12), the annular plane (11) is arranged on the upper end surface of the bowl opening (2), the cylindrical side surface (12) is sleeved on the outer side edge of the bowl opening (2), a boss (21) is arranged on the outer side wall of the bowl opening (2), and a bayonet (13) used for being clamped on the boss (21) is arranged on the cylindrical side surface (12); the annular plane (11) and the cylindrical side surface (12) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021165833.0U CN212839366U (en) | 2020-06-22 | 2020-06-22 | External sealing gasket for long ladle nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021165833.0U CN212839366U (en) | 2020-06-22 | 2020-06-22 | External sealing gasket for long ladle nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212839366U true CN212839366U (en) | 2021-03-30 |
Family
ID=75175719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021165833.0U Active CN212839366U (en) | 2020-06-22 | 2020-06-22 | External sealing gasket for long ladle nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212839366U (en) |
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2020
- 2020-06-22 CN CN202021165833.0U patent/CN212839366U/en active Active
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