CN217438230U - Inner nozzle combined brick of steel tapping hole - Google Patents
Inner nozzle combined brick of steel tapping hole Download PDFInfo
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- CN217438230U CN217438230U CN202221091601.4U CN202221091601U CN217438230U CN 217438230 U CN217438230 U CN 217438230U CN 202221091601 U CN202221091601 U CN 202221091601U CN 217438230 U CN217438230 U CN 217438230U
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- brick
- mouth
- river
- steel
- tapping hole
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Abstract
The utility model relates to a mouth of a river combination brick in steel-tapping hole, interior mouth of a river combination brick sets up between steel-tapping hole and sliding nozzle brick, including end brick and mouth of a river brick, the conical surface coincide in the steel-tapping hole external diameter in end brick top, and the outer conical surface cooperation of the upper portion of mouth of a river brick is nested in the conical surface in the lower part of end brick, packs the fire clay between the fitting surface of mouth of a river brick and end brick, and the conical surface coincide in sliding nozzle brick external diameter in the bottom of mouth of a river brick, and end brick and mouth of a river brick are inside to be equipped with the steel-tapping hole that link up each other with steel-tapping hole and sliding nozzle brick, and end brick periphery ring establishes strengthening rib one and strengthening rib two, and mouth of a river brick periphery ring establishes strengthening rib three. The utility model discloses the nozzle brick can replace, can effectively promote tapping hole life-span more than 35%, has reduced work load and material cost, has improved converter steelmaking efficiency.
Description
Technical Field
The utility model relates to the field of refractory materials, in particular to a tap hole inner nozzle combined brick.
Background
The converter tap hole is used as the only channel for molten steel to enter the ladle, and plays an important role in the converter steelmaking production process. The quality of the steel-tapping hole directly influences the operation rate of the converter, the material cost and the quality of molten steel, and the end brick and the inner nozzle which are contacted with the sliding mechanism are very important control points. The two existing combination forms in China are that the inner nozzle is thin, the combination surface of the inner nozzle and the end brick is a plane, and the inner nozzle and the end brick are not resistant to erosion and scouring, so that the service life of a steel tapping hole is short, the steel tapping hole needs to be continuously repaired and replaced, the production cycle is influenced, and the quality of molten steel and the production stability are influenced.
Disclosure of Invention
The utility model aims to solve the technical problem that a mouth of a river structure in steel-tapping hole is provided, promotes the inboard erosion-resistant scouring performance of steel-tapping hole, reaches the effect that promotes the steel-tapping hole life-span.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a mouth of a river combination brick in steel-tapping hole, interior mouth of a river combination brick sets up between steel-tapping hole and sliding nozzle brick, including end brick and mouth of a river brick, the conical surface coincide in the mouth of a river external diameter in end brick top, and the outer conical surface cooperation of the upper portion of mouth of a river brick is nested in the conical surface in the lower part of end brick, packs the fire clay between the fitting surface of mouth of a river brick and end brick, and the conical surface coincide in the bottom of mouth of a river brick in sliding nozzle brick external diameter, and end brick and mouth of a river brick are inside to be equipped with the steel-tapping hole that link up each other with mouth of a river and sliding nozzle brick, and end brick periphery ring establishes strengthening rib one and strengthening rib two, and mouth of a river brick periphery ring establishes strengthening rib three.
The outer conical surface of the upper part of the nozzle brick comprises a first conical surface and a second conical surface which are arranged in a layered mode.
The first reinforcing rib, the second reinforcing rib and the third reinforcing rib are metal reinforcing ribs.
The first reinforcing rib and the second reinforcing rib are the same in thickness, and the third reinforcing rib is larger than the first reinforcing rib and the second reinforcing rib.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the mouth of a river brick can replace, can effectively promote tapping hole life-span more than 35%, has reduced work load and material cost, has improved converter steelmaking efficiency.
The end brick and the nozzle brick are matched through layered conical surfaces and filled with fire clay, so that steel leakage is prevented, and replacement operation is facilitated.
The end bricks are externally provided with the first reinforcing rib and the second reinforcing rib, so that the bricks can be more uniformly bound, and the risk of cracking of the bricks in the use process is reduced. The nozzle brick is provided with the third reinforcing rib, so that better binding force is provided, and thermal shock stability of the brick body is improved.
Drawings
Fig. 1 is a schematic structural diagram of the installation of the present invention.
Fig. 2 is a schematic structural view of an inner nozzle combined brick.
Fig. 3 is a schematic view of the construction of a nozzle brick.
In the figure: the steel tapping hole comprises a steel tapping hole 1, a sliding nozzle brick 4, an end brick 2, a nozzle brick 3, fire clay 5, a steel outlet hole 6, a first reinforcing rib 7, a second reinforcing rib 8, a third reinforcing rib 9, a first conical surface 10 and a second conical surface 11.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings:
referring to fig. 1-3, the inner nozzle composite brick of the steel-tapping hole is arranged between a steel-tapping hole 1 and a sliding nozzle brick 4 and comprises an end brick 2 and a nozzle brick 3, wherein the inner conical surface at the top of the end brick 2 is matched with the outer diameter of the steel-tapping hole 1, the outer conical surface at the upper part of the nozzle brick 3 is matched and nested in the inner conical surface at the lower part of the end brick 2, and the outer conical surface at the upper part of the nozzle brick 3 comprises a first conical surface 10 and a second conical surface 11 which are arranged in layers; fire clay 5 is filled between the matching surfaces of the nozzle brick 3 and the end brick 2, and the thickness of the fire clay 5 is 1.5-2.5 mm.
The inner conical surface of the bottom of the nozzle brick 3 is inosculated with the outer diameter of the sliding nozzle brick 4.
And the end brick 2 and the nozzle brick 3 are internally provided with steel tapping holes 6 which are communicated with the steel tapping hole 1 and the sliding nozzle brick 4.
The first reinforcing rib 7 and the second reinforcing rib 8 are annularly arranged on the periphery of the end brick 2, so that the brick body can be more uniformly bound, and the risk of cracking of the brick body in the using process is reduced. And a third reinforcing rib 9 is annularly arranged on the periphery of the nozzle brick 8. Better binding force is provided, and thermal shock stability of the brick body is improved; the first reinforcing rib 7, the second reinforcing rib 8 and the third reinforcing rib 9 are metal reinforcing ribs. The first reinforcing rib 7 and the second reinforcing rib 8 are the same in thickness, and the third reinforcing rib 9 is larger than the first reinforcing rib 7 and the second reinforcing rib 8 in thickness.
Examples
A steel-tapping hole inner nozzle combined brick is arranged between a steel-tapping hole 1 and a sliding nozzle brick 4 and comprises an end brick 2 and a nozzle brick 3, wherein the inner conical surface at the top of the end brick 2 is matched with the outer diameter of the steel-tapping hole 1, the outer conical surface at the upper part of the nozzle brick 3 is matched and nested in the inner conical surface at the lower part of the end brick 2, and the outer conical surface at the upper part of the nozzle brick 3 comprises a first conical surface 10 and a second conical surface 11 which are arranged in a layered manner; fire clay 5 is filled between the matching surfaces of the nozzle brick 3 and the end brick 2, and the thickness of the fire clay is 2 mm.
The inner conical surface of the bottom of the nozzle brick 3 is inosculated with the outer diameter of the sliding nozzle brick 4.
And the end brick 2 and the nozzle brick 3 are internally provided with steel tapping holes 6 which are communicated with the steel tapping hole 1 and the sliding nozzle brick 4.
The periphery of the end brick 2 is annularly provided with a first reinforcing rib 7 and a second reinforcing rib 8, and the periphery of the nozzle brick 8 is annularly provided with a third reinforcing rib 9. The first reinforcing rib 7, the second reinforcing rib 8 and the third reinforcing rib 9 are metal reinforcing ribs. The thickness of the first reinforcing rib 7 and the second reinforcing rib 8 is 1.5mm, and the thickness of the third reinforcing rib 9 is 2 mm.
Above utility model, to the ordinary technical personnel in this technical field, can also be right without deviating from the principle of the utility model, these improve and decorate and also fall into the protection scope of the utility model claims. The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (4)
1. The utility model provides a mouth of a river combination brick in steel-tapping hole, a serial communication port, mouth of a river combination brick setting is between steel-tapping hole and sliding nozzle brick, including end brick and mouth of a river brick, the conical surface coincide in the mouth of a river external diameter in end brick top, and the outer conical surface cooperation of the upper portion of mouth of a river brick is nested in the conical surface in the lower part of end brick, packs the fire clay between the fitting surface of mouth of a river brick and end brick, and the conical surface in the bottom of mouth of a river brick coincide in sliding nozzle brick external diameter, and end brick and mouth of a river brick are inside to be equipped with the steel-tapping hole that link up each other with mouth of a river and sliding nozzle brick, and end brick periphery ring establishes strengthening rib one and strengthening rib two, and mouth of a river brick periphery ring establishes strengthening rib three.
2. The inner nozzle assembly brick as claimed in claim 1, wherein the outer tapered upper surface of the nozzle brick comprises a first tapered surface and a second tapered surface arranged in layers.
3. The inner nozzle brick of a tap hole according to claim 1, wherein the first reinforcing rib, the second reinforcing rib and the third reinforcing rib are metal reinforcing ribs.
4. The inner nozzle combination brick of the tap hole according to claim 1, wherein the first reinforcing rib and the second reinforcing rib have the same thickness, and the third reinforcing rib has a thickness greater than that of the first reinforcing rib and the second reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221091601.4U CN217438230U (en) | 2022-05-09 | 2022-05-09 | Inner nozzle combined brick of steel tapping hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221091601.4U CN217438230U (en) | 2022-05-09 | 2022-05-09 | Inner nozzle combined brick of steel tapping hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217438230U true CN217438230U (en) | 2022-09-16 |
Family
ID=83218916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221091601.4U Active CN217438230U (en) | 2022-05-09 | 2022-05-09 | Inner nozzle combined brick of steel tapping hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217438230U (en) |
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2022
- 2022-05-09 CN CN202221091601.4U patent/CN217438230U/en active Active
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