CN208787530U - A kind of sealed long nozzle - Google Patents
A kind of sealed long nozzle Download PDFInfo
- Publication number
- CN208787530U CN208787530U CN201821256290.6U CN201821256290U CN208787530U CN 208787530 U CN208787530 U CN 208787530U CN 201821256290 U CN201821256290 U CN 201821256290U CN 208787530 U CN208787530 U CN 208787530U
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- CN
- China
- Prior art keywords
- long nozzle
- iron
- clad
- ventilative ring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a kind of sealed long nozzle, ventilative ring is added on long nozzle body upper part outer wall, iron clad shell is inlayed outside ventilative ring, there are circumferential welds between iron-clad and ventilative ring, iron-clad positioned at side wall is equipped with gas blow pipe, between long nozzle ontology and iron-clad, between ventilative ring and iron-clad, between long nozzle ontology and ventilative ring and long nozzle body upper part is equipped with clay sealing.The utility model can prevent molten steel secondary oxidation, improve molding casting effect, extend the service life of long nozzle, reduce spare parts consumption, reduce smelting cost.
Description
Technical field
The utility model belongs to the sealed long water of smelting equipment field more particularly to a kind of Con casting ladle molding casting
Mouthful.
Background technique
In continuous casting process, the clean molten steel of ingredient and temperature all qualifications, conveys main from ladle to tundish after refining
It is carried out by collector nozzle of ladle and long nozzle, is frequently present of collector nozzle of ladle in the process and the sealing of long nozzle junction is bad
Or protect secondary oxidation that is bad and leading to molten steel to generate and be largely mingled with, influence the degree of purity of molten steel.Currently, the combination of the two
Place mainly uses surrounding Argon gas shielded, and structure is that mouth of a river upper end is evenly distributed 8 grooves, is covered by outsourcing iron sheet formed
Gas storage box, the argon gas being passed through is blown out by recess hole, and then is dispersed junction surrounding air and formed guard space.But in reality
There are problems that iron sheet melts damaged and venthole by molten steel and is blocked in the production process of border.
Summary of the invention
It can reduce molten steel volume the purpose of the utility model is to provide one kind and inhale the degree that reoxidizes, improve molding casting effect
Sealed long nozzle.
For this purpose, the technical solution that the utility model is taken are as follows:
A kind of sealed long nozzle adds ventilative ring on long nozzle body upper part outer wall, inlays iron clad shell, iron outside ring of breathing freely
There are circumferential weld between shell and ventilative ring, the iron-clad positioned at side wall is equipped with gas blow pipe, between long nozzle ontology and iron-clad, breathes freely
Between ring and iron-clad, between long nozzle ontology and ventilative ring and long nozzle body upper part be equipped with clay sealing.
The ventilative ring thickness is 40~50mm.
The circumferential weld gap is 3~5mm.
The ventilative ring is poured using high-temperature refractory.
The utility model has the following beneficial effects:
Since ventilative ring is when sequence casting, to clear up its working face not rapid wear with oxygen made of high-temperature refractory
It is bad, and not vulnerable to liquid steel Water Damage, therefore the utility model protective gas discharge surface on long nozzle forms uniform air film, has
Effect prevents air from sucking long nozzle ladle canal, prevents molten steel secondary oxidation, improves molding casting effect, extends making for long nozzle
With the service life, spare parts consumption is reduced, reduces smelting cost.
Detailed description of the invention
Fig. 1 is sealed long nozzle schematic diagram.
In figure: long nozzle ontology 1, clay 2, gas blow pipe 3, circumferential weld 4, iron-clad 5, ventilative ring 6.
Specific embodiment
As seen from Figure 1, the sealed long nozzle of the utility model adds circle thickness in the external wall of upper portion of long nozzle ontology 1
Degree is the ventilative ring 6 of 45mm, and ventilative 6 system of ring is poured using high-temperature refractory.Inlay iron clad shell 5, iron in the outside of ventilative ring 6
There are the circumferential welds 4 that gap is 4mm between shell 5 and ventilative ring 6, and the iron-clad 5 positioned at side wall is equipped with gas blow pipe 3, in long nozzle sheet
Between body 1 and iron-clad 5, between ventilative ring 6 and iron-clad 5, between long nozzle ontology 1 and ventilative ring 6 and long nozzle ontology 1 it is upper
Portion is equipped with clay 2 and is sealed.
Protective gas (such as argon gas) enters circumferential weld 4 from gas blow pipe 3, and by air brick, in long nozzle inner surface shape suitable for reading
At air film, air is prevented to suck long nozzle ladle canal, to protect to steel stream.
Claims (4)
1. a kind of sealed long nozzle, which is characterized in that add ventilative ring on long nozzle body upper part outer wall, inlayed outside ring of breathing freely
Iron clad shell, there are circumferential welds between iron-clad and ventilative ring, and the iron-clad positioned at side wall is equipped with gas blow pipe, in long nozzle ontology and iron-clad
Between, between ventilative ring and iron-clad, between long nozzle ontology and ventilative ring and long nozzle body upper part is equipped with clay sealing.
2. sealed long nozzle according to claim 1, which is characterized in that the ventilative ring thickness is 40~50mm.
3. sealed long nozzle according to claim 1, which is characterized in that the circumferential weld gap is 3~5mm.
4. sealed long nozzle according to claim 1, which is characterized in that the ventilative ring is poured using high-temperature refractory
It builds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256290.6U CN208787530U (en) | 2018-08-06 | 2018-08-06 | A kind of sealed long nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256290.6U CN208787530U (en) | 2018-08-06 | 2018-08-06 | A kind of sealed long nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208787530U true CN208787530U (en) | 2019-04-26 |
Family
ID=66204624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821256290.6U Active CN208787530U (en) | 2018-08-06 | 2018-08-06 | A kind of sealed long nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208787530U (en) |
-
2018
- 2018-08-06 CN CN201821256290.6U patent/CN208787530U/en active Active
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| GR01 | Patent grant |