CN106399623A - Oxygen lance nitrogen sealing plug - Google Patents
Oxygen lance nitrogen sealing plug Download PDFInfo
- Publication number
- CN106399623A CN106399623A CN201610346729.3A CN201610346729A CN106399623A CN 106399623 A CN106399623 A CN 106399623A CN 201610346729 A CN201610346729 A CN 201610346729A CN 106399623 A CN106399623 A CN 106399623A
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- oxygen rifle
- annular
- nitrogen blocking
- oxygen lance
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
Abstract
The invention discloses an oxygen lance nitrogen sealing plug. The oxygen lance nitrogen sealing plug comprises a nitrogen sealing plug body which is jointly defined by an annular upper cover plate, an annular lower bottom plate, an outer side plate and an inner side plate and is provided with an annular cavity and an oxygen lance insertion channel; a ring air inlet holes communicated with the annular cavity are formed in the outer side plate of the nitrogen sealing plug body in the circumferential direction, and at least three annular inner separating plates arranged at intervals are arranged on the inner wall of the inner side plate of the oxygen lance insertion channel of the nitrogen sealing plug body from top to bottom; a ring of air outlet holes communicated with the annular cavity are formed in the positions, between every two adjacent annular inner separating plates, on the inner side plate in the circumferential direction; and after nitrogen passes through the annular cavity to be sprayed out from the air outlet holes, the nitrogen sprayed out from each ring of air outlet holes will form a layer of sealing air curtain between the nitrogen sealing plug body and an oxygen lance inserted into the oxygen lance insertion channel, and therefore sealing air curtains capable of sealing a gap between the nitrogen sealing plug body and the oxygen lance are distributed between the nitrogen sealing plug body and the oxygen lance inserted into the oxygen lance insertion channel from top to bottom at intervals. The oxygen lance nitrogen sealing plug has the beneficial effects of being good in nitrogen sealing effect, high in strength and long in service life.
Description
Technical field
The present invention relates to the envelope setting of converter oxygen gun insert port nitrogen is and in particular to oxygen rifle nitrogen blocking.
Background technology
In steel-making industry, oxygen rifle for blowing is that the oxygen rifle insert port arranging from the fire door flue being installed on above converter stretches into converter, because 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 in the air, nitrogen seal device can be provided between the oxygen rifle insert port of oxygen rifle and fire door flue, nitrogen seal device is typically made up of the nitrogen envelope seat and the nitrogen blocking being movably set on the oxygen rifle body of a gun being installed on oxygen rifle insert port, and the structure of the nitrogen blocking being used at present is：Including 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 have annular compartment and oxygen rifle inserts the nitrogen blocking body of 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 seals, through nitrogen, the annular compartment that seat enters nitrogen blocking from air inlet, again after the venthole of nitrogen blocking sprays, nitrogen can insert in nitrogen blocking body and insertion oxygen rifle and form one layer of sealing air curtain that can seal gap between the two between the oxygen rifle of passage.But the nitrogen blocking being used at present has that low intensity, service life is short and the shortcomings of nitrogen envelope effect difference.
Content of the invention
It is an object of the invention to provide a kind of nitrogen envelope oxygen rifle nitrogen blocking that effect is good and intensity is high.
For achieving the above object, present invention employs following technical scheme：Described oxygen rifle nitrogen blocking，Including by annular upper cover plate、Annular lower shoe、What outer panel and interior plate surrounded jointly have annular compartment and oxygen rifle inserts the nitrogen blocking body of 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 is inserted and is from up to down 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 the interior plate between two often adjacent annular inner baffle，After nitrogen sprays from venthole through annular compartment，The nitrogen often irising out pore ejection can insert one layer of sealing air curtain of formation between the oxygen rifle of passage in nitrogen blocking body and insertion oxygen rifle，If enabling nitrogen blocking body and insertion oxygen rifle being inserted between the oxygen rifle of passage from up to down dried layer spaced apart and sealed 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 is fixed on interior plate using two-sided welding mode.
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, the present invention has the advantages that nitrogen envelope, and effect is good, intensity is high and long service life.
Brief description
Fig. 1 is the structural representation of oxygen rifle nitrogen blocking of the present invention.
Specific embodiment
The invention will be further described 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 have annular compartment 5 and oxygen rifle inserts the nitrogen blocking body of 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 is inserted and is from up to down 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 is inserted 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 the interior plate between two often adjacent annular inner baffle 8, after nitrogen sprays from venthole 9 through annular compartment 5, the nitrogen often irising out pore 9 ejection can insert in nitrogen blocking body and insertion oxygen rifle and forms one layer of sealing air curtain between the oxygen rifle of passage 6, if enabling nitrogen blocking body and insertion oxygen rifle is inserted between the oxygen rifle of passage 6 from up to down dried layer spaced apart and sealed 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 annular inner baffle 8 is spliced by two pieces of semicircular arc internal partitions, so dismounts more convenient；In the present embodiment, every piece of semicircular arc internal partition is fixed on interior plate 4 using two-sided welding mode, 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 nitrogen blocking further intensity；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；
The operation principle of the present invention is as follows：
After the oxygen rifle insert port that oxygen rifle is arranged from fire door flue stretches into converter, nitrogen blocking is just entrenched in nitrogen envelope seat, then it is passed through nitrogen in nitrogen envelope seat, nitrogen can be passed through the annular compartment 5 of nitrogen blocking through nitrogen envelope seat and from the air inlet 7 of nitrogen blocking, spray from the venthole 9 of nitrogen blocking again, if enabling nitrogen blocking and insertion oxygen rifle inserting the sealing air curtain in the gap between the two of from up to down dried layer spaced apart sealing between the oxygen rifle of passage, thus substantially increasing nitrogen to seal effect；And by being the annular lower shoe 2 of 16mm using integrally formed annular upper cover plate 1 and thickness, substantially increase the intensity of nitrogen blocking, pass through to arrange the venthole that pore size is 16mm simultaneously, be prevented effectively from venthole and block, substantially prolongs the service life of nitrogen blocking.The present invention has the advantages that nitrogen envelope, and effect is good, intensity is high and long service life.
Claims (8)
1. oxygen rifle nitrogen blocking it is characterised in that：Including by annular upper cover plate、Annular lower shoe、What outer panel and interior plate surrounded jointly have annular compartment and oxygen rifle inserts the nitrogen blocking body of 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 is inserted and is from up to down 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 the interior plate between two often adjacent annular inner baffle，After nitrogen sprays from venthole through annular compartment，The nitrogen often irising out pore ejection can insert one layer of sealing air curtain of formation between the oxygen rifle of passage in nitrogen blocking body and insertion oxygen rifle，If enabling nitrogen blocking body and insertion oxygen rifle being inserted between the oxygen rifle of passage from up to down dried layer spaced apart and sealed the sealing air curtain in gap between the two.
2. oxygen rifle nitrogen blocking according to claim 1 it is characterised in that：Described annular upper cover plate is formed in one setting.
3. oxygen rifle nitrogen blocking 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.
4. oxygen rifle nitrogen blocking according to claim 3 it is characterised in that：Every piece of semicircular arc internal partition is fixed on interior plate using two-sided welding mode.
5. oxygen rifle nitrogen blocking according to claim 1 it is characterised in that：The thickness range of annular lower shoe is 14～20mm.
6. oxygen rifle nitrogen blocking according to claim 1 it is characterised in that：The thickness of annular lower shoe is 16mm.
7. oxygen rifle nitrogen blocking according to claim 1 it is characterised in that：The pore size scope of venthole is 14～20mm.
8. oxygen rifle nitrogen blocking 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 |
|---|---|---|---|
| CN201610346729.3A CN106399623A (en) | 2016-05-24 | 2016-05-24 | Oxygen lance nitrogen sealing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610346729.3A CN106399623A (en) | 2016-05-24 | 2016-05-24 | Oxygen lance nitrogen sealing plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106399623A true CN106399623A (en) | 2017-02-15 |
Family
ID=58005608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610346729.3A Pending CN106399623A (en) | 2016-05-24 | 2016-05-24 | Oxygen lance nitrogen sealing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106399623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604125A (en) * | 2017-10-19 | 2018-01-19 | 四川企拓新材料有限公司 | A kind of converter oxygen gun takes off slag device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201321469Y (en) * | 2008-12-18 | 2009-10-07 | 宝山钢铁股份有限公司 | Nitrogen sealing stopper end for converter oxygen lance |
| 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 |
| CN102181600A (en) * | 2011-05-24 | 2011-09-14 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN103243193A (en) * | 2013-05-11 | 2013-08-14 | 首钢长治钢铁有限公司 | Nitrogen sealing device of lower muzzle of steel converter |
| CN203653603U (en) * | 2013-12-31 | 2014-06-18 | 四川德胜集团钒钛有限公司 | Air sealing device for oxygen lance nozzle of smelting converter |
| CN204342825U (en) * | 2014-12-17 | 2015-05-20 | 中冶东方工程技术有限公司 | A kind of converter oxygen gun insert port water jacket device |
| CN204509374U (en) * | 2015-03-11 | 2015-07-29 | 新疆八一钢铁股份有限公司 | Oxygen rifle nitrogen seal ring cap |
| CN205774632U (en) * | 2016-05-24 | 2016-12-07 | 江苏永钢集团有限公司 | Oxygen rifle nitrogen blocking |
-
2016
- 2016-05-24 CN CN201610346729.3A patent/CN106399623A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201321469Y (en) * | 2008-12-18 | 2009-10-07 | 宝山钢铁股份有限公司 | Nitrogen sealing stopper end for converter oxygen lance |
| 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 |
| CN102181600A (en) * | 2011-05-24 | 2011-09-14 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN103243193A (en) * | 2013-05-11 | 2013-08-14 | 首钢长治钢铁有限公司 | Nitrogen sealing device of lower muzzle of steel converter |
| CN203653603U (en) * | 2013-12-31 | 2014-06-18 | 四川德胜集团钒钛有限公司 | Air sealing device for oxygen lance nozzle of smelting converter |
| CN204342825U (en) * | 2014-12-17 | 2015-05-20 | 中冶东方工程技术有限公司 | A kind of converter oxygen gun insert port water jacket device |
| CN204509374U (en) * | 2015-03-11 | 2015-07-29 | 新疆八一钢铁股份有限公司 | Oxygen rifle nitrogen seal ring cap |
| CN205774632U (en) * | 2016-05-24 | 2016-12-07 | 江苏永钢集团有限公司 | Oxygen rifle nitrogen blocking |
Non-Patent Citations (1)
| Title |
|---|
| 钢铁企业燃气设计参考资料编写组: "《钢铁企业燃气设计参考资料》", 30 June 1978 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604125A (en) * | 2017-10-19 | 2018-01-19 | 四川企拓新材料有限公司 | A kind of converter oxygen gun takes off slag device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101825267B (en) | Lamp respirator and lamp with same | |
| CN104989558A (en) | Double-layer pipe joint for engine gas supply system | |
| CN105004187B (en) | Heating-furnace door gear | |
| CN106399623A (en) | Oxygen lance nitrogen sealing plug | |
| CN205774632U (en) | Oxygen rifle nitrogen blocking | |
| CN103868293A (en) | Vertical oil separator | |
| CN110369866B (en) | Gas protection device for laser welding | |
| CN203820694U (en) | Smoke guide device for preventing escape of smoke at top of coking furnace | |
| CN201526969U (en) | Gas furnace end with secondary gas inlet | |
| CN105464754A (en) | Motorcycle muffler | |
| CN204699540U (en) | A kind of filter with distribution of gas function | |
| CN201526964U (en) | Stove head of gas stove | |
| CN103834756B (en) | Seal water system of blast furnace gas in distributing device | |
| CN204508952U (en) | A kind of apparatus for treating sewage and connecting joint structure thereof | |
| CN213777761U (en) | Catalytic combustion exhaust treatment device | |
| CN211057149U (en) | Improved nitrogen sealing device for converter feed opening | |
| CN210965571U (en) | High-efficient water-cooling PSR polymer denitration agent spray gun | |
| CN203842499U (en) | Communicated gas shell with waste gas diffusion device | |
| CN106016342B (en) | A kind of plate air preheater that effect is good | |
| CN109045974B (en) | Falling film reactor | |
| CN203663801U (en) | Lamp filament melting mechanism | |
| CN112410757A (en) | Gas distribution flange of tubular reactor | |
| CN105422217A (en) | Muffler structure for motorcycle | |
| CN205448710U (en) | Water cooling protective sleeve for submerged arc furnace | |
| CN203768387U (en) | Water seal system for blast furnace gas in distributor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |