CN205774632U - Oxygen rifle nitrogen blocking - Google Patents
Oxygen rifle nitrogen blocking Download PDFInfo
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- CN205774632U CN205774632U CN201620476356.7U CN201620476356U CN205774632U CN 205774632 U CN205774632 U CN 205774632U CN 201620476356 U CN201620476356 U CN 201620476356U CN 205774632 U CN205774632 U CN 205774632U
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- oxygen rifle
- nitrogen
- annular
- nitrogen blocking
- blocking body
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Abstract
nullThe utility model discloses oxygen rifle nitrogen blocking，Including by annular upper cover plate、Annular lower shoe、What outer panel and interior plate surrounded jointly has the nitrogen blocking body of annular compartment and oxygen rifle insertion passage，The circumferentially arranged air inlet having a circle to communicate with annular compartment on the outer panel of nitrogen blocking body，In nitrogen blocking body, oxygen rifle inserts and is the most at least arranged at intervals with three annular inner baffle on the interior plate inwall of passage，The circumferentially arranged venthole having a circle to communicate with annular compartment on interior plate between two the most adjacent annular inner baffle，When nitrogen is after annular compartment is from venthole ejection，The nitrogen often irising out pore ejection can form one layer of sealing air curtain between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage，If making dried layer the most spaced apart between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage can seal the sealing air curtain in gap between the two.This utility model have nitrogen envelope effective, intensity is high and the advantage of length in service life.
Description
Technical field
This utility model relates to converter oxygen gun insert port nitrogen envelope and arranges, and is specifically related to oxygen rifle nitrogen blocking.
Background technology
nullIn steel-making industry，Oxygen rifle for blowing is that the oxygen rifle insert port arranged from the fire door flue being installed on above converter stretches into converter，Owing to converter can produce the flue gas containing a large amount of impurity in converting process，For avoiding flue gas to pollute environment from gap loss between oxygen rifle and oxygen rifle insert port to air，Nitrogen seal device can be provided with between the oxygen rifle insert port of oxygen rifle and fire door flue，Nitrogen seal device is typically sealed seat by the nitrogen being installed on oxygen rifle insert port、And the nitrogen blocking composition being movably set on the oxygen rifle body of a gun，The structure of the nitrogen blocking used at present is: include the annular upper cover plate being made up of two blocks of semicircular arc plates、Annular lower shoe、What outer panel and interior plate surrounded jointly has the nitrogen blocking body of annular compartment and oxygen rifle insertion passage，The circumferentially arranged air inlet having a circle to communicate with annular compartment on the outer panel of nitrogen blocking body，The circumferentially arranged venthole having a circle to communicate with annular compartment on the interior plate of nitrogen blocking body，When nitrogen through nitrogen envelope seat from the annular compartment of air inlet entrance nitrogen blocking，Again after the venthole of nitrogen blocking sprays，Nitrogen can form one layer of sealing air curtain that can seal gap between the two between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage.But the nitrogen blocking used at present exists, and intensity is low, service life is short and nitrogen seals the shortcomings such as weak effect.
Utility model content
The purpose of this utility model is to provide the oxygen rifle nitrogen blocking that a kind of nitrogen envelope is effective and intensity is high.
nullFor achieving the above object，This utility model adopts the technical scheme that described oxygen rifle nitrogen blocking，Including by annular upper cover plate、Annular lower shoe、What outer panel and interior plate surrounded jointly has the nitrogen blocking body of annular compartment and oxygen rifle insertion passage，The circumferentially arranged air inlet having a circle to communicate with annular compartment on the outer panel of nitrogen blocking body，In nitrogen blocking body, oxygen rifle inserts and is the most at least arranged at intervals with three annular inner baffle on the interior plate inwall of passage，The circumferentially arranged venthole having a circle to communicate with annular compartment on interior plate between two the most adjacent annular inner baffle，When nitrogen is after annular compartment is from venthole ejection，The nitrogen often irising out pore ejection can form one layer of sealing air curtain between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage，If making dried layer the most spaced apart between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage can seal the sealing air curtain in gap between the two.
Further, aforesaid oxygen rifle nitrogen blocking, wherein: described annular upper cover plate is formed in one setting.
Further, aforesaid oxygen rifle nitrogen blocking, wherein: every piece of annular inner baffle is spliced by two pieces of semicircular arc internal partitions.
Further, aforesaid oxygen rifle nitrogen blocking, wherein: every piece of semicircular arc internal partition uses two-sided welding mode to be fixed on interior plate.
Further, aforesaid oxygen rifle nitrogen blocking, wherein: the thickness range of annular lower shoe is 14～20mm.
Further, aforesaid oxygen rifle nitrogen blocking, wherein: the thickness of annular lower shoe is 16mm.
Further, aforesaid oxygen rifle nitrogen blocking, wherein: the pore size scope of venthole is 14～20mm.
Further, aforesaid oxygen rifle nitrogen blocking, wherein: the aperture of venthole is 16mm.
By the enforcement of technique scheme, this utility model have nitrogen envelope effective, intensity is high and the advantage of length in service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of oxygen rifle nitrogen blocking described in the utility model.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, described oxygen rifle nitrogen blocking, including by annular upper cover plate 1, annular lower shoe 2, what outer panel 3 and interior plate 4 surrounded jointly has the nitrogen blocking body of annular compartment 5 and oxygen rifle insertion passage 6, the circumferentially arranged air inlet 7 having a circle to communicate with annular compartment 5 on the outer panel 3 of nitrogen blocking body, in nitrogen blocking body, oxygen rifle inserts and is the most at least arranged at intervals with three annular inner baffle 8 on interior plate 4 inwall of passage 6, in the present embodiment, in nitrogen blocking body, oxygen rifle inserts and is from up to down arranged at intervals with nine annular inner baffle 8 on interior plate 4 inwall of passage 6；The circumferentially arranged venthole 9 having a circle to communicate with annular compartment 5 on interior plate between two the most adjacent annular inner baffle 8, when nitrogen is after annular compartment 5 is from venthole 9 ejection, the nitrogen often irising out pore 9 ejection can insert formation one layer sealing air curtain between the oxygen rifle of passage 6 at nitrogen blocking body and insertion oxygen rifle, if making dried layer the most spaced apart between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage 6 can seal the sealing air curtain in gap between the two；In the present embodiment, described annular upper cover plate 1 is formed in one setting, so can improve the intensity of nitrogen blocking；In the present embodiment, described every piece of annular inner baffle 8 is spliced by two pieces of semicircular arc internal partitions, and so dismounting is more convenient；In the present embodiment, every piece of semicircular arc internal partition uses two-sided welding mode to be fixed on interior plate 4, so can improve the intensity of nitrogen blocking further；In the present embodiment, the thickness range of annular lower shoe 2 is 14～20mm, so can the intensity of nitrogen blocking further；In the present embodiment, the optimal thickness of annular lower shoe 2 is 16mm；In the present embodiment, the pore size scope of venthole 9 is 14～20mm, so can be prevented effectively from venthole and block；In the present embodiment, the optimum aperture of venthole is 16mm；
Operation principle of the present utility model is as follows:
After the oxygen rifle insert port arranged from fire door flue when oxygen rifle stretches into converter, nitrogen blocking is just entrenched in nitrogen envelope seat, then in nitrogen envelope seat, it is passed through nitrogen, nitrogen can be through nitrogen envelope seat the annular compartment 5 being passed through nitrogen blocking from the air inlet 7 of nitrogen blocking, spray from the venthole 9 of nitrogen blocking again, if making dried layer the most spaced apart between nitrogen blocking and the oxygen rifle inserting oxygen rifle insertion passage can seal the sealing air curtain in gap between the two, thus substantially increase nitrogen envelope effect；And by using integrated annular upper cover plate 1 and the annular lower shoe 2 that thickness is 16mm, substantially increase the intensity of nitrogen blocking, simultaneously by arranging the venthole that pore size is 16mm, it is prevented effectively from venthole and blocks, substantially prolongs the service life of nitrogen blocking.This utility model have nitrogen envelope effective, intensity is high and the advantage of length in service life.
Claims (8)
- null1. oxygen rifle nitrogen blocking，It is characterized in that: include by annular upper cover plate、Annular lower shoe、What outer panel and interior plate surrounded jointly has the nitrogen blocking body of annular compartment and oxygen rifle insertion passage，The circumferentially arranged air inlet having a circle to communicate with annular compartment on the outer panel of nitrogen blocking body，In nitrogen blocking body, oxygen rifle inserts and is the most at least arranged at intervals with three annular inner baffle on the interior plate inwall of passage，The circumferentially arranged venthole having a circle to communicate with annular compartment on interior plate between two the most adjacent annular inner baffle，When nitrogen is after annular compartment is from venthole ejection，The nitrogen often irising out pore ejection can form one layer of sealing air curtain between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage，If making dried layer the most spaced apart between nitrogen blocking body and the oxygen rifle inserting oxygen rifle insertion passage can seal the sealing air curtain in gap between the two.
- Oxygen rifle nitrogen blocking the most according to claim 1, it is characterised in that: described annular upper cover plate is formed in one setting.
- Oxygen rifle nitrogen blocking the most according to claim 1, it is characterised in that: every piece of annular inner baffle is spliced by two pieces of semicircular arc internal partitions.
- Oxygen rifle nitrogen blocking the most according to claim 3, it is characterised in that: every piece of semicircular arc internal partition uses two-sided welding mode to be fixed on interior plate.
- Oxygen rifle nitrogen blocking the most according to claim 1, it is characterised in that: the thickness range of annular lower shoe is 14～20mm.
- Oxygen rifle nitrogen blocking the most according to claim 1, it is characterised in that: the thickness of annular lower shoe is 16mm.
- Oxygen rifle nitrogen blocking the most according to claim 1, it is characterised in that: the pore size scope of venthole is 14～20mm.
- Oxygen rifle nitrogen blocking the most according to claim 1, it is characterised in that: the aperture of venthole is 16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476356.7U CN205774632U (en) | 2016-05-24 | 2016-05-24 | Oxygen rifle nitrogen blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476356.7U CN205774632U (en) | 2016-05-24 | 2016-05-24 | Oxygen rifle nitrogen blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205774632U true CN205774632U (en) | 2016-12-07 |
Family
ID=58115044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620476356.7U Active CN205774632U (en) | 2016-05-24 | 2016-05-24 | Oxygen rifle nitrogen blocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205774632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
-
2016
- 2016-05-24 CN CN201620476356.7U patent/CN205774632U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |