CN103014227A - Dual-purpose gas and steam plugging ring for muzzle of converter oxygen lance - Google Patents
Dual-purpose gas and steam plugging ring for muzzle of converter oxygen lance Download PDFInfo
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- CN103014227A CN103014227A CN2012105014694A CN201210501469A CN103014227A CN 103014227 A CN103014227 A CN 103014227A CN 2012105014694 A CN2012105014694 A CN 2012105014694A CN 201210501469 A CN201210501469 A CN 201210501469A CN 103014227 A CN103014227 A CN 103014227A
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- circle
- shutoff
- steam
- dual
- gas
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Abstract
The invention provides a dual-purpose gas and steam plugging ring for a muzzle of a converter oxygen lance. The connecting surfaces of an upper plugging ring and a lower plugging ring are correspondingly provided with semicircular grooves, the upper plugging ring is connected to the lower plugging ring through bolts, the two semicircular grooves form an air path which is connected with an air inlet tube, and a circle of circular seam for exhausting is obliquely left in the inner side of the air path. Due to the application of the circular seam which serves as an exhaust path, exhausted gas (or steam) is distributed more uniformly and densely, therefore, a good plugging effect can be ensured, and the spillover of any smoke and flame is avoided; gas or steam can be taken as a plugging gas source, so that the dual purposes of gas and steam can be achieved; and the energy is saved, the production cost can be reduced, the application amount of nitrogen is reduced, and especially the problem that when the nitrogen supply is insufficient, a plugging pressure is small, the oxygen lance is passively lifted, and thus a converter cannot run is solved, thereby ensuring the stable operation of production.
Description
Technical field
The invention belongs to the steelmaking equipment field, relate in particular to a kind of be used to preventing that converter dust and flame are from top oxygen muzzle excessive nitrogen or steam two-purpose shutoff ring.
Background technology
The top-blown oxygen converter afterheat boiler system is provided with oxygen rifle water jacket, and the oxygen rifle inserts in the stove in the middle of oxygen rifle water jacket.In steelmaking process, flue dust and flame in the Converter can be scurried out by oxygen rifle water jacket mouth.Scurry out from oxygen rifle water jacket mouth in order to prevent flue dust and flame, steelworks all adopts nitrogen as source of the gas both at home and abroad, and the nitrogen gas source pipe is connected on the nitrogen endless tube, evenly offers several production wells on the nitrogen endless tube, nitrogen is spouting by production well, and oxygen rifle water jacket mouth is carried out shutoff.
Yet, in case equipment of making nitrogen maintenance will cause nitrogen supply (NS) not enough, because nitrogen pressure is low, the nitrogen endless tube can't block the oxygen muzzle, causes flue gas and flare from the ejection of oxygen rifle water jacket mouth, scaling loss oxygen belt, water band, security incident very easily occurs, be forced to blunderbuss, cause converter to produce, and have a strong impact on later process.
Summary of the invention
The invention provides and a kind ofly both can use nitrogen, can use again steam as the dual-purpose shutoff ring of converter oxygen gun implication, the vapour of shutoff source of the gas.One of its purpose is to utilize the steam that produces in the steelmaking process, both can save the energy, can effectively reduce production costs again.Two of purpose is to reduce the nitrogen usage quantity, and the shutoff pressure that causes when especially avoiding nitrogen supply (NS) not enough is little, the problem that the passive blunderbuss of oxygen rifle causes converter to produce, thereby the steady running that assurance is produced.
For this reason, the solution taked of the present invention is:
A kind of converter oxygen gun implication, the dual-purpose shutoff ring of vapour are comprised of flange, upper shutoff circle, lower shutoff circle, inlet pipe and bolt; Be respectively equipped with a circle semi-circular grooves at upper shutoff circle and lower shutoff circle joint face correspondence position, lower shutoff lap welding is connected on the flange, upper shutoff circle is bolted on lower shutoff circle, make the semi-circular grooves of upper and lower shutoff circle form an air flue, be connected with inlet pipe on the air flue, the inboard oblique circle exhaust circumferential weld that leaves of air flue.
Corresponding circle positive stop lug boss and the stopper slot that be provided with respectively on upper shutoff circle and lower shutoff circle joint face.And between upper shutoff circle positive stop lug boss and lower shutoff circle stopper slot, be provided with asbestos twine.
Beneficial effect of the present invention is:
1, shutoff ring of the present invention not only can use nitrogen, but also can use steam as the shutoff source of the gas, had realized that gas, vapour are dual-purpose.
2, with steam as the shutoff source of the gas, can take full advantage of the steam that produces in the steelmaking process, both can save the energy, relatively reduce the discharge of steam amount, can effectively reduce production costs again.
3, can reduce the nitrogen usage quantity, the shutoff pressure that causes when especially avoiding nitrogen supply (NS) not enough is little, the problem that the passive blunderbuss of oxygen rifle causes converter to produce, thereby the steady running that assurance is produced.
4, owing to adopting the circular seam type exhaust-duct, gas (vapour) body of discharge is more evenly gathered, thereby can guarantee plugging effect, avoid any flue gas and flame excessive.
Description of drawings
Fig. 1 is converter oxygen gun implication, the dual-purpose shutoff ring of vapour semi-sectional view.
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: standing bolt 1, flange 2, joint bolt 3, upper shutoff circle 4, lower shutoff circle 5, inlet pipe 6, gas passage 7, exhaust circumferential weld 8, oxygen rifle hole 9, asbestos twine 10, positive stop lug boss 11.
Embodiment
Converter oxygen gun implication of the present invention, the dual-purpose shutoff ring system of vapour are comprised of standing bolt 1, flange 2, joint bolt 3, upper shutoff circle 4, lower shutoff circle 5, inlet pipe 6.Gas shutoff ring integral body is annular, and the center is provided with oxygen rifle hole 9, as inserting the oxygen rifle.
Simultaneously, for avoiding occurring dislocation between upper shutoff circle 4 and the lower shutoff circle 5, therefore the joint face at upper shutoff circle 4 is provided with a circle positive stop lug boss 11, and correspondence is provided with a circle stopper slot on the joint face of lower shutoff circle 5.Simultaneously, between the stopper slot of the positive stop lug boss 11 of upper shutoff circle 4 and lower shutoff circle 5, also be provided with asbestos twine 10, to prevent the external leakage of gas (vapour) in the gas passage 7.
Claims (3)
1. a converter oxygen gun implication, the dual-purpose shutoff ring of vapour is characterized in that, are comprised of flange, upper shutoff circle, lower shutoff circle, inlet pipe and bolt; Be respectively equipped with a circle semi-circular grooves at upper shutoff circle and lower shutoff circle joint face correspondence position, lower shutoff lap welding is connected on the flange, upper shutoff circle is bolted on lower shutoff circle, make the semi-circular grooves of upper and lower shutoff circle form an air flue, be connected with inlet pipe on the air flue, the inboard oblique circle exhaust circumferential weld that leaves of air flue.
2. converter oxygen gun implication according to claim 1, the dual-purpose shutoff ring of vapour is characterized in that, corresponding circle positive stop lug boss and the stopper slot that be provided with respectively on upper shutoff circle and lower shutoff circle joint face.
3. converter oxygen gun implication according to claim 2, the dual-purpose shutoff ring of vapour is characterized in that, are provided with asbestos twine between upper shutoff circle positive stop lug boss and lower shutoff circle stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105014694A CN103014227A (en) | 2012-11-30 | 2012-11-30 | Dual-purpose gas and steam plugging ring for muzzle of converter oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105014694A CN103014227A (en) | 2012-11-30 | 2012-11-30 | Dual-purpose gas and steam plugging ring for muzzle of converter oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103014227A true CN103014227A (en) | 2013-04-03 |
Family
ID=47963338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105014694A Pending CN103014227A (en) | 2012-11-30 | 2012-11-30 | Dual-purpose gas and steam plugging ring for muzzle of converter oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103014227A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320330A (en) * | 1992-03-30 | 1994-06-14 | Mannesmann Aktiengesellschaft | Gas tight lance closure at a cooling chimney hood for steel convertors |
| EP0603480A2 (en) * | 1992-11-25 | 1994-06-29 | Stopinc Aktiengesellschaft | Sliding closure in particular for a converter holding a bath of molten metal |
| JP3202113B2 (en) * | 1993-10-19 | 2001-08-27 | 新日本製鐵株式会社 | Method and apparatus for sealing converter lance hole |
| CN201443980U (en) * | 2009-06-09 | 2010-04-28 | 鞍钢股份有限公司 | Converter gas-sealing device |
| CN201442960U (en) * | 2009-07-24 | 2010-04-28 | 鞍钢集团设计研究院 | Converter oxygen lance muzzle sealing device |
| CN201660658U (en) * | 2010-04-16 | 2010-12-01 | 中冶赛迪工程技术股份有限公司 | Oxygen lance nitrogen sealing device |
| CN201915112U (en) * | 2010-12-10 | 2011-08-03 | 中冶赛迪工程技术股份有限公司 | Oxygen lance or sublance sealing plug |
| CN202279835U (en) * | 2011-10-13 | 2012-06-20 | 中冶华天工程技术有限公司 | Combined type nitrogen seal cap for oxygen lance |
| CN202543244U (en) * | 2012-01-09 | 2012-11-21 | 蔡起良 | Oxygen gun mouth sealing plug of energy-saving and low-consumption rotary furnace |
| CN202954060U (en) * | 2012-11-30 | 2013-05-29 | 鞍钢股份有限公司 | Gas-steam dual-purpose blocking ring for opening of oxygen lance of converter |
-
2012
- 2012-11-30 CN CN2012105014694A patent/CN103014227A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320330A (en) * | 1992-03-30 | 1994-06-14 | Mannesmann Aktiengesellschaft | Gas tight lance closure at a cooling chimney hood for steel convertors |
| EP0603480A2 (en) * | 1992-11-25 | 1994-06-29 | Stopinc Aktiengesellschaft | Sliding closure in particular for a converter holding a bath of molten metal |
| JP3202113B2 (en) * | 1993-10-19 | 2001-08-27 | 新日本製鐵株式会社 | Method and apparatus for sealing converter lance hole |
| CN201443980U (en) * | 2009-06-09 | 2010-04-28 | 鞍钢股份有限公司 | Converter gas-sealing device |
| CN201442960U (en) * | 2009-07-24 | 2010-04-28 | 鞍钢集团设计研究院 | Converter oxygen lance muzzle sealing device |
| CN201660658U (en) * | 2010-04-16 | 2010-12-01 | 中冶赛迪工程技术股份有限公司 | Oxygen lance nitrogen sealing device |
| CN201915112U (en) * | 2010-12-10 | 2011-08-03 | 中冶赛迪工程技术股份有限公司 | Oxygen lance or sublance sealing plug |
| CN202279835U (en) * | 2011-10-13 | 2012-06-20 | 中冶华天工程技术有限公司 | Combined type nitrogen seal cap for oxygen lance |
| CN202543244U (en) * | 2012-01-09 | 2012-11-21 | 蔡起良 | Oxygen gun mouth sealing plug of energy-saving and low-consumption rotary furnace |
| CN202954060U (en) * | 2012-11-30 | 2013-05-29 | 鞍钢股份有限公司 | Gas-steam dual-purpose blocking ring for opening of oxygen lance of converter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |