CN203569136U - Internal-jetting oxygen lance opening steam seal device - Google Patents
Internal-jetting oxygen lance opening steam seal device Download PDFInfo
- Publication number
- CN203569136U CN203569136U CN201320698286.6U CN201320698286U CN203569136U CN 203569136 U CN203569136 U CN 203569136U CN 201320698286 U CN201320698286 U CN 201320698286U CN 203569136 U CN203569136 U CN 203569136U
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- China
- Prior art keywords
- steam
- envelope
- rudder
- steam seal
- guide layer
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to an internal-jetting oxygen lance opening steam seal device, comprising a steam seal, a guide layer and a nitrogen seal rudder, wherein the guide layer is designed at the upper part of the steam seal; a steam seal cylinder is arranged at the lower part; the nitrogen seal rudder is embedded into the steam seal through the guide layer and forms tight coordination; the inclined edge of the nitrogen seal rudder inclines at 30 degrees; the length of the inclined edge is 300mm; a circle of gas orifices are respectively arranged at the positions of four angles of 0, 15, 30 and 45 degrees on the inner ring of the steam seal cylinder; 80 gas orifices are formed on each ring; the steam seal is connected with an oxygen lance opening through a flange. The internal-jetting oxygen lance opening steam seal device has the advantages of being simple in structure, easy to manufacture, good in working performance, high in operation reliability, and good in use effect.
Description
Technical field
The utility model belongs to steelmaking equipment technical field, relates to a kind of internal spray oxygen muzzle steam seal apparatus.
Background technology
Petticoat pipe is one of visual plant of steelwork converter steel-making, along with the development of metallurgical industry, and the raising to environmental requirement, cost control and steel-making specification of quality, also more and more higher to the requirement of steelmaking equipment.
As shown in Figure 1, it comprises revolving furnace fume hood body 11, feed opening system 12 and oxygen muzzle system 13 to current revolving furnace fume hood.During steel-making, unreasonable due to the steam seal structure in oxygen muzzle system 13, make the oxygen muzzle steam of nitrogen on oxygen rifle envelope rudder and petticoat pipe be sealed not in place, the flue dust of emerging from oxygen muzzle and flame cannot be pushed back in petticoat pipe, cause the excessive formation Environment pollution of flue dust, coal gas leaks, and affects steel-making sight line and burns out equipment etc., cannot guarantee carrying out smoothly of fast pace production, cause production cost high.
Utility model content
In order to overcome the above-mentioned shortcoming of prior art
,it is a kind of by changing oxygen muzzle envelope jet hole structure that the utility model provides, when steel-making can be pushed back in petticoat pipe from the petticoat pipe coal gas flue dust flame of emerging, improve service life of equipment and production efficiency, increase the internal spray oxygen muzzle steam seal apparatus that coal-gas recovering reduces production costs.
The utility model solves the technical scheme that its technical problem adopts: a kind of internal spray oxygen muzzle steam seal apparatus, comprise steam envelope, guide layer, nitrogen envelope rudder, the steam portion of sealing up is designed to guide layer, bottom is steam envelope cylinder, nitrogen envelope rudder is bumped into steam inside front cover and is formed by guide layer and closely cooperates, nitrogen envelope rudder hypotenuse is 30 ° of inclinations, the length of hypotenuse is 300mm, 0 ° from top to bottom of steam envelope cylinder inner ring, 15 °, 30 °, 45 ° of four angular position are respectively equipped with a circle gas orifice, every circle is provided with 80 gas orifices, steam envelope is connected with oxygen muzzle by flange.
Described nitrogen envelope rudder is positioned on the oxygen rifle body of a gun.
At described mobile tobacco, be covered with oxygen muzzle.
In described steam envelope lower end, be provided with air inlet port.
Described gas orifice is Φ 4mm.
The beneficial effects of the utility model are: by changing the spray angle of steam and the sealing means of nitrogen envelope rudder and steam; the coal gas of emerging from oxygen muzzle while making to smelt; flue dust; flame pushes back in petticoat pipe; guaranteed metallurgical effect; gas poisoning proof is also guaranteed coal-gas recovering rate; guarantee to smelt sight line; protection smelting equipment; make normal reliable; improved service life of equipment and production efficiency and reduced production costs and improved production safety coefficient, have advantages of simple in structure, be easy to manufacture, favorable working performance, serviceability is high and result of use good.
Accompanying drawing explanation
Fig. 1 is the structural representation of former revolving furnace fume hood:
Fig. 2 is the utility model structural representation.
In figure: 1-oxygen rifle, 2-nitrogen envelope rudder, 3-guide layer, 4-steam envelope cylinder, 5-gas orifice, 11-revolving furnace fume hood body, 12-feed opening system, 13-oxygen muzzle system.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Referring to Fig. 2, a kind of internal spray oxygen muzzle steam seal apparatus, comprise steam envelope, guide layer 3, oxygen rifle 1 and nitrogen envelope rudder 2, the steam portion of sealing up is designed to guide layer 3, bottom is steam envelope cylinder, nitrogen envelope rudder 2 is bumped into steam inside front cover and is formed by guide layer 3 and closely cooperates, nitrogen envelope rudder 2 hypotenuses are 30 ° of inclinations, the length of hypotenuse is 300mm, oxygen rifle 1 is positioned at nitrogen envelope rudder 2 upper ends, oxygen rifle 1 upper end is provided with oxygen muzzle, 0 ° from top to bottom of steam envelope cylinder 4 inner ring, 15 °, 30 °, 45 ° of four angular position are respectively equipped with the gas orifice 5 of a circle Φ 4mm, every circle is provided with 80 gas orifices 5, , steam envelope is connected with oxygen muzzle by flange.
During work, while arriving converter smelting under oxygen rifle 1 insertion petticoat pipe, nitrogen envelope rudder 2 is bumped into steam inside front cover and is formed by guide layer 3 and closely cooperates, simultaneously by chain unlatching steam valve, the gas orifice that vapour stream at a high speed seals by steam is rapidly by the coal gas of emerging from oxygen muzzle, flue dust, flame pushes back in petticoat pipe.
The utility model can install steam envelope additional on common oxygen muzzle water jacket, nitrogen envelope rudder 2, at 4 clamps of the position of 11 meters, oxygen rifle welding, nitrogen envelope rudder 2 can only do relative motion in the oxygen rifle 1 more than 11 meters position of the body of a gun, oxygen rifle 1 can be made steel by rise and fall, utilize the gradient of nitrogen envelope rudder 2, make nitrogen envelope rudder 2 guide layers 3 form imporosity.When oxygen rifle 1 drops to certain altitude, steam valve is opened automatically, the effect to realization sealings such as flue dust gas flames, and 3 pairs of oxygen rifles 1 of while guide layer are realized automatic calibration in deflection to a certain degree.
The utility model is by changing spray angle and the mode of steam, the coal gas flue dust flame of emerging from oxygen muzzle is pushed back in petticoat pipe, guaranteed sealing effectiveness, guaranteed the normal reliable of converter smelting, service life of equipment and production efficiency have been improved, increase the coal-gas recovering rate gas poisoning proof etc. that reduces production costs, have advantages of simple in structure, be easy to manufacture, favorable working performance, serviceability is high and result of use good.
Claims (5)
1. an internal spray oxygen muzzle steam seal apparatus, comprise steam envelope, guide layer, nitrogen envelope rudder, it is characterized in that: the steam portion of sealing up is designed to guide layer, bottom is steam envelope cylinder, nitrogen envelope rudder is bumped into steam inside front cover and is formed by guide layer and closely cooperates, nitrogen envelope rudder hypotenuse is 30 ° of inclinations, the length of hypotenuse is 300mm, 0 ° from top to bottom, 15 °, 30 °, 45 ° four angular position of steam envelope cylinder inner ring are respectively equipped with a circle gas orifice, every circle is provided with 80 gas orifices, and steam envelope is connected with oxygen muzzle by flange.
2. internal spray oxygen muzzle steam seal apparatus as claimed in claim 1, is characterized in that: described nitrogen envelope rudder is positioned on the oxygen rifle body of a gun.
3. internal spray oxygen muzzle steam seal apparatus as claimed in claim 1, is characterized in that: at described mobile tobacco, be covered with oxygen muzzle.
4. internal spray oxygen muzzle steam seal apparatus as claimed in claim 1, is characterized in that: in described steam envelope lower end, be provided with air inlet port.
5. internal spray oxygen muzzle steam seal apparatus as claimed in claim 1, is characterized in that: described gas orifice is Φ 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698286.6U CN203569136U (en) | 2013-11-07 | 2013-11-07 | Internal-jetting oxygen lance opening steam seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698286.6U CN203569136U (en) | 2013-11-07 | 2013-11-07 | Internal-jetting oxygen lance opening steam seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203569136U true CN203569136U (en) | 2014-04-30 |
Family
ID=50536879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320698286.6U Expired - Fee Related CN203569136U (en) | 2013-11-07 | 2013-11-07 | Internal-jetting oxygen lance opening steam seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203569136U (en) |
-
2013
- 2013-11-07 CN CN201320698286.6U patent/CN203569136U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20201107 |