CN210523812U - Water feeding port - Google Patents
Water feeding port Download PDFInfo
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- CN210523812U CN210523812U CN201920613131.5U CN201920613131U CN210523812U CN 210523812 U CN210523812 U CN 210523812U CN 201920613131 U CN201920613131 U CN 201920613131U CN 210523812 U CN210523812 U CN 210523812U
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- inner cavity
- water gap
- nozzle
- protection ring
- gap inner
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Abstract
The utility model discloses a water feeding port belongs to metallurgical continuous casting technical field. The water feeding port comprises: the argon blowing device comprises a first body, a second body, a protection ring and an argon blowing nozzle; the first body is fixedly connected with the second body; a first water gap inner cavity is formed in the first body, a second water gap inner cavity is formed in the second body, the first water gap inner cavity is communicated with the second water gap inner cavity, and the first water gap inner cavity is coaxial with the second water gap inner cavity; a protection ring is fixedly arranged on the end face, far away from the first body, of the second body, and the argon blowing nozzle sequentially penetrates through the second body and the protection ring; the first body and the second body are of a channel-free structure. The utility model discloses gas entering molten steel is avoided at the mouth of a river of feeding, prevents that gas from forming the bubble defect in the casting blank to improve product surface quality.
Description
Technical Field
The utility model relates to a metallurgical continuous casting technical field, in particular to water feeding port.
Background
The upper nozzle is mainly applied to a tundish, is an important element for connecting the tundish and the submerged nozzle, and is a main component for liquid molten steel to enter a crystallizer channel.
However, in the prior art, the water feeding port is composed of air bricks, and a gas channel is formed. In the casting process, gas enters molten steel through a gas channel so as to enter a crystallizer, and if the gas floats upwards insufficiently, bubble defects exist in a casting blank in the solidification process, so that the product quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water feeding port solves or partially solved among the prior art gaseous gas passage through the water feeding port and gets into the molten steel and form the bubble defect to influence product quality's technical problem.
In order to solve the technical problem, the utility model provides a water feeding port includes: the argon blowing device comprises a first body, a second body, a protection ring and an argon blowing nozzle; the first body is fixedly connected with the second body; a first water gap inner cavity is formed in the first body, a second water gap inner cavity is formed in the second body, the first water gap inner cavity is communicated with the second water gap inner cavity, and the first water gap inner cavity is coaxial with the second water gap inner cavity; a protection ring is fixedly arranged on the end face, far away from the first body, of the second body, and the argon blowing nozzle sequentially penetrates through the second body and the protection ring; the first body and the second body are of a channel-free structure.
Further, the first body is fixedly connected with the second body through a transition layer.
Further, the first body is of a channel-free structure of MgO-C; the second body is Al2O3-a channel-free structure of substance C.
Further, the transition layer is made of MgO-C and Al2O3-a channel-free structure of mixed C species.
Further, MgO-C of the transition layer and Al of the transition layer2O3The ratio of-substances C is 1: 1.
Further, the protection ring is made of a plate oil material.
Furthermore, a chamfer is formed at the opening of the inner cavity of the first water gap, which is far away from the second body.
Further, inner cavity protective layers are arranged on the inner wall of the inner cavity of the first water gap and the upper portion of the inner wall of the inner cavity of the second water gap.
Further, the inner cavity protection layer is anti-sticking coating.
Further, the second body is arranged in the steel shell.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the first body is fixedly connected with the second body, the first body is internally provided with a first water gap inner cavity, the second body is internally provided with a second water gap inner cavity, the first water gap inner cavity is communicated with the second water gap inner cavity, and the first water gap inner cavity is coaxial with the second water gap inner cavity, molten steel enters the second water gap inner cavity through the first water gap inner cavity, because the end surface of the second body, which is far away from the first body, is fixedly provided with a protection ring, and an argon blowing nozzle sequentially penetrates through the second body and the protection ring, the argon blowing nozzle blows out argon gas, an inert gas ring is formed at the protection ring, air is prevented from entering the second water gap inner cavity through a gap between the protection ring and external equipment, and because the first body and the second body are of a channel-free structure, the external air cannot enter the first water body inner cavity and the second water gap inner cavity, gas is prevented from entering the molten steel, and the defect that the gas, thereby improving the surface quality of the product.
Drawings
Figure 1 is the utility model discloses a structure schematic diagram of last mouth of a river that embodiment provided
FIG. 2 is a top view of the upper nozzle of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a sectional view taken along line B-B in fig. 2.
Detailed Description
Referring to fig. 1-4, the embodiment of the utility model provides a water feeding port includes: the argon blowing device comprises a first body 1, a second body 2, a protection ring 3 and an argon blowing nozzle 4.
The first body 1 is fixedly connected with the second body 2.
First mouth of a river inner chamber 5 has been seted up in the first body 1, has seted up second mouth of a river inner chamber 6 in the second body 2, and first mouth of a river inner chamber 5 and second mouth of a river inner chamber 6 intercommunication, first mouth of a river inner chamber 5 and second mouth of a river inner chamber 6 are coaxial.
The end face, far away from the first body 1, of the second body 2 is fixedly provided with a protection ring 3, and the argon blowing nozzle 4 sequentially penetrates through the second body 2 and the protection ring 3.
Wherein, the first body 1 and the second body 2 are of a channel-free structure.
In the embodiment of the application, the first body 1 is fixedly connected with the second body 2, the first body 1 is internally provided with the first water gap inner cavity 5, the second body 2 is internally provided with the second water gap inner cavity 6, the first water gap inner cavity 5 is communicated with the second water gap inner cavity 6, and the first water gap inner cavity 5 is coaxial with the second water gap inner cavity 6, so that molten steel enters the second water gap inner cavity 6 through the first water gap inner cavity 5, because the end surface of the second body 2 far away from the first body 1 is fixedly provided with the protection ring 3, and the argon blowing nozzle 4 sequentially passes through the second body 2 and the protection ring 3, the argon blowing nozzle 4 blows out argon gas, an inert gas ring is formed at the protection ring 3, air is prevented from entering the second water gap inner cavity through the protection ring 3 and external equipment, and because the first body 1 and the second body 2 are of a channel-free structure, so that external air cannot enter the first water gap inner cavity 5 and the second water gap inner cavity 6, the gas is prevented from entering molten steel, and the defect that the gas forms bubbles in the casting blank is avoided, so that the surface quality of the product is improved.
Specifically, the first body 1 is fixedly connected with the second body 2 through the transition layer 7.
The first body 1 is a non-channel structure made of MgO-C, which is resistant to scouring and high in strength, and the MgO-C is convenient to form the non-channel structure.
The second body 2 is Al2O3A channel-free structure of C, high strength, Al2O3the-C substance facilitates the formation of a channel-free structure.
The transition layer 7 is made of MgO-C and Al2O3-a channel-free structure of mixed C species. MgO-C of the transition layer 7 and Al of the transition layer 72O3The proportion of the-C substance is 1:1, so that the first body 1 and the second body 2 are firmly connected, and a channel-free structure is conveniently formed.
Specifically, the protection ring 3 is made of a plate oil material.
Specifically, the opening of the first nozzle inner cavity 5 far away from the second body 2 is provided with a chamfer, so that molten steel can enter conveniently.
Specifically, the inner wall of the first nozzle inner cavity 5 and the upper part of the inner wall of the second nozzle inner cavity 6 are both provided with inner cavity protective layers 8. The inner cavity protective layer 8 is anti-sticking coating to avoid the adhesion of impurities.
Specifically, the second body 2 is fixedly disposed within the steel shell 9 for improving the strength of the second body 2. Specifically, in the present embodiment, the second body 2 is sleeved in the steel shell 9.
In order to more clearly describe the embodiment of the present invention, the following description is provided on the using method of the embodiment of the present invention.
The first body 1 is connected with the crystallizer, and the second body 2 is connected with the submerged nozzle through a protection ring 3. The first body 1 is a MgO-C channel-free structure with scouring resistance and high strength, and the second body 2 is Al2O3A channel-free structure of the C substance, which has high strength. The first body 1 is fixedly connected with the second body 2 through a transition layer 7. The transition layer 7 is made of MgO-C and Al2O3-C mixed channel-free structure, MgO-C of the transition layer 7 and Al of the transition layer 72O3The proportion of the-C substance is 1:1, so that the first body 1 and the second body 2 are firmly connected, a channel-free structure is formed conveniently, gas is prevented from entering molten steel, bubble defects of the gas in a casting blank are prevented, the surface quality of a product is improved, and the service lives of the first body 1 and the second body 2 are prolonged.
The argon blowing nozzle 4 blows out argon gas, an inert gas ring is formed at the protective ring 3, air is prevented from entering the inner cavity 6 of the second water gap through a gap between the protective ring 3 and the submerged water gap, and further gas is prevented from entering molten steel.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (8)
1. A nozzle, comprising: the argon blowing device comprises a first body, a second body, a protection ring and an argon blowing nozzle;
the first body is fixedly connected with the second body;
a first water gap inner cavity is formed in the first body, a second water gap inner cavity is formed in the second body, the first water gap inner cavity is communicated with the second water gap inner cavity, and the first water gap inner cavity is coaxial with the second water gap inner cavity;
a protection ring is fixedly arranged on the end face, far away from the first body, of the second body, and the argon blowing nozzle sequentially penetrates through the second body and the protection ring;
the first body and the second body are of a channel-free structure.
2. A nozzle as claimed in claim 1, wherein:
the first body is fixedly connected with the second body through a transition layer.
3. A nozzle as claimed in claim 2, wherein:
the first body is of a channel-free structure of MgO-C;
the second body is Al2O3-a channel-free structure of substance C.
4. A nozzle as claimed in claim 1, wherein:
the protection ring is made of a plate oil material.
5. A nozzle as claimed in claim 1, wherein:
and a chamfer is formed at the opening of the inner cavity of the first water gap far away from the second body.
6. A nozzle as claimed in claim 1, wherein:
and inner cavity protective layers are arranged on the inner wall of the inner cavity of the first water gap and the inner wall of the inner cavity of the second water gap.
7. A nozzle as claimed in claim 6, wherein:
the inner cavity protective layer is anti-sticking coating.
8. A nozzle as claimed in claim 1, wherein:
the second body is arranged in the steel shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613131.5U CN210523812U (en) | 2019-04-30 | 2019-04-30 | Water feeding port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613131.5U CN210523812U (en) | 2019-04-30 | 2019-04-30 | Water feeding port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210523812U true CN210523812U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920613131.5U Active CN210523812U (en) | 2019-04-30 | 2019-04-30 | Water feeding port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210523812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822691A (en) * | 2020-08-27 | 2020-10-27 | 北京利尔高温材料股份有限公司 | Quick-change surface long nozzle with gas sealing structure and preparation method thereof |
-
2019
- 2019-04-30 CN CN201920613131.5U patent/CN210523812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822691A (en) * | 2020-08-27 | 2020-10-27 | 北京利尔高温材料股份有限公司 | Quick-change surface long nozzle with gas sealing structure and preparation method thereof |
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| CP02 | Change in the address of a patent holder |
Address after: 063200 Caofeidian Industrial Zone, Hebei, Tangshan City Patentee after: SHOUGANG JINGTANG UNITED IRON & STEEL Co.,Ltd. Address before: 063200 Caofeidian Industrial Zone, Shijiazhuang, Hebei Patentee before: SHOUGANG JINGTANG UNITED IRON & STEEL Co.,Ltd. |