CN212070382U - Anti-oxidation high-brushing-resistance long nozzle - Google Patents
Anti-oxidation high-brushing-resistance long nozzle Download PDFInfo
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- CN212070382U CN212070382U CN201922395922.8U CN201922395922U CN212070382U CN 212070382 U CN212070382 U CN 212070382U CN 201922395922 U CN201922395922 U CN 201922395922U CN 212070382 U CN212070382 U CN 212070382U
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- long nozzle
- long
- slag line
- river
- air channel
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Abstract
The utility model discloses a long mouth of a river of anti-oxidation high resistant brush nature relates to continuous casting refractory material preparation field. The utility model discloses a: the long nozzle comprises a long nozzle body, an air channel, an iron shell, an air blowing hole, a lining, a slag line, a composite slag line and a transition material. The air blowing hole is located on one side of the head of the long nozzle, the air channel is located at the top of the long nozzle, and the air blowing hole is connected with the air channel through a pipeline. The utility model discloses an it is very easy secondary oxidation and the resistance to scouring poor that add air channel, gas hole compound slag line promptly and overcome prior art long mouth of a river molten steel to cause the shortcoming of molten steel quality decline and the emergence of wearing the steel accident, adopt the transition material to be connected through the junction at body and slag line again, further strengthened the intensity at the long mouth of a river, avoid the long mouth of a river to break off in the use. The service life of the long nozzle is prolonged.
Description
Technical Field
The utility model relates to a refractory material continuous casting processing technology field, in particular to long mouth of a river of anti-oxidation high resistant brush nature.
Background
The long nozzle is also called a protective sleeve, is mainly used between a steel ladle and a tundish and has the function of preventing molten steel entering the tundish from the steel ladle from being oxidized and splashed. Is an important component for connecting the steel ladle and the tundish and is one of important preconditions for ensuring the normal operation of the continuous casting process.
Oxides generated by the contact of molten steel and air in the continuous casting process of the long nozzle can be deposited on the inner wall of a slag line or mixed in the molten steel to influence the quality of the molten steel, and the phenomena require that the long nozzle has good anti-oxidation capability, and the slag line of important components of the long nozzle has good performances of resisting molten steel thermal shock and slag alternate scouring. The long nozzle in the prior art has weak oxidation resistance and weak performance of resisting alternate erosion of molten steel and slag, cannot meet the production requirement of high-quality steel, and has short practical life. The utility model provides a long mouth of a river of anti-oxidation high resistant brush nature, it has good anti-oxidation ability and good resistant scouring performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome among the prior art long mouth of a river life short and resistant molten steel thermal shock and the performance that the slag was washed in turn and is rinsed weak, the problem of very easily taking place to wear the steel accident provides a long mouth of a river that long service life, prevent molten steel secondary oxidation and resistant molten steel's thermal shock nature and the erosion performance is good of resistant slag, molten steel. The utility model discloses an it is very easy secondary oxidation and the resistance to scouring poor that add air channel, gas hole and compound slag line overcome prior art long mouth of a river molten steel promptly to cause the shortcoming of molten steel quality decline and the emergence of wearing the steel accident, adopt the transition material to be connected through the junction at body and slag line again, further strengthened the intensity at the long mouth of a river, avoid the long mouth of a river to break off in the use. The service life of the long nozzle is prolonged.
For realizing the purpose of the utility model, the utility model discloses a technical scheme include: the composite slag line comprises a long nozzle body, an air channel, an iron shell, an air blowing hole, a lining, a slag line, a composite slag line and a transition material, wherein the air blowing hole is positioned on one side of the head of the long nozzle, the diameter of the air blowing hole is 10-14mm, and the air channel is positioned at the top of the long nozzle.
Furthermore, a boss is specially arranged in the air channel.
Further, the length of the composite slag line and the slag line is 2/5 of the length of the whole long nozzle.
Further, the length of the transition material is 2/125-3/125 of the length of the whole long nozzle.
Compared with the prior art, the utility model has the advantages that: the defects that molten steel quality is reduced and steel penetration accidents are caused due to the fact that the molten steel is easy to oxidize secondarily and poor in scouring resistance in the long nozzle in the prior art are overcome by additionally arranging the air channel and the air blowing hole, namely the composite slag line. The service life of the long nozzle is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of an anti-oxidation high-brushing-resistance long nozzle provided in an embodiment of the present invention;
in the drawings: 1. a long nozzle body; 2. an air passage; 3. an iron shell; 4. a gas blowing hole; 5. a liner; 6. a slag line; 7. compounding a slag line; 8. transition materials; 9. and (4) a boss.
Detailed Description
In view of the deficiencies in the prior art, the technical solution of the present invention can be provided through long-term research and a large amount of practice. The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention.
Fig. 1 is a schematic structural view of an anti-oxidation high-brushing-resistance long nozzle provided in an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides an anti-oxidation high-brush-resistance long nozzle, including: the long nozzle comprises a long nozzle body 1, an air channel 2, an iron shell 3, an air blowing hole 4, a lining 5, a slag line 6, a composite slag line 7 and a transition material 8, wherein the air blowing hole 4 is located on one side of the head of the long nozzle, the diameter of the air blowing hole 4 is 10-14mm, and the air channel 2 is located at the top of the long nozzle.
The embodiment of the utility model provides a long mouth of a river of anti-oxidation high resistant brush nature, specially be equipped with boss 9 in the air duct 2.
The embodiment of the utility model provides a pair of prevent long mouth of a river of high resistant brush nature of oxidation, compound slag line 7 and 6 length of slag line are 2/5 of whole long mouth of a river length.
The embodiment of the utility model provides a long mouth of a river of anti-oxidation high resistant brush nature, the length of transition material 8 is 2/125-3/125 of whole long mouth of a river length.
To sum up, the utility model provides a pair of long mouth of a river of anti-oxidation high resistance to brushing nature overcomes prior art long mouth of a river molten steel very easily secondary oxidation and resistance to scouring poor through addding air channel, gas hole compound slag line promptly to cause the shortcoming of molten steel quality to descend and wear the emergence of steel accident, adopt the transition material to be connected through the junction at body and slag line again, further strengthened the intensity at the long mouth of a river, avoid the long mouth of a river to break off in the use. The service life of the long nozzle is prolonged.
The utility model provides a pair of prevent long mouth of a river of high resistant brush nature of oxidation should understand, and above-mentioned embodiment is only for the explanation the utility model discloses a technical conception and characteristics, its aim at let the personage of familiar with this technique can understand the utility model discloses an according to in order to implement, can not restrict with this the utility model discloses a protection scope. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides a long mouth of a river of anti-oxidation high resistant brush nature which characterized in that: the composite slag line comprises a long nozzle body, an air channel, an iron shell, an air blowing hole, a lining, a slag line, a composite slag line and a transition material, wherein the air blowing hole is positioned on one side of the head of the long nozzle, the diameter of the air blowing hole is 10-14mm, and the air channel is positioned at the top of the long nozzle.
2. The oxidation-resistant high-brushing-resistance long nozzle according to claim 1, characterized in that: the air channel is specially provided with a boss.
3. The oxidation-resistant high-brushing-resistance long nozzle according to claim 1, characterized in that: the length of the composite slag line and the slag line is 2/5 of the length of the whole long nozzle.
4. The oxidation-resistant high-brushing-resistance long nozzle according to claim 1, characterized in that: the length of the transition material is 2/125-3/125 of the length of the whole long nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395922.8U CN212070382U (en) | 2019-12-27 | 2019-12-27 | Anti-oxidation high-brushing-resistance long nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395922.8U CN212070382U (en) | 2019-12-27 | 2019-12-27 | Anti-oxidation high-brushing-resistance long nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212070382U true CN212070382U (en) | 2020-12-04 |
Family
ID=73565340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922395922.8U Active CN212070382U (en) | 2019-12-27 | 2019-12-27 | Anti-oxidation high-brushing-resistance long nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212070382U (en) |
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2019
- 2019-12-27 CN CN201922395922.8U patent/CN212070382U/en active Active
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