CN2318229Y - Combined extrution oxygen gun blow head - Google Patents
Combined extrution oxygen gun blow head Download PDFInfo
- Publication number
- CN2318229Y CN2318229Y CN 97250069 CN97250069U CN2318229Y CN 2318229 Y CN2318229 Y CN 2318229Y CN 97250069 CN97250069 CN 97250069 CN 97250069 U CN97250069 U CN 97250069U CN 2318229 Y CN2318229 Y CN 2318229Y
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- CN
- China
- Prior art keywords
- oxygen
- blow head
- water
- shower nozzle
- blow
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a combined extrusion oxygen gun blow head, which is composed of an oxygen inlet pipe (1), a water inlet pipe (2), an oxygen blow bore (3), a water guiding plate (4), and a water outlet pipe (5). The water guiding plate is connected with the water inlet pipe by screw threads, and the oxygen blow bore (3) is composed of an aditus laryngis section (7) of a blow bore forming by extrusion, the end of the blow head and the distention section (8) of the blow bore. The amount of the bore of the blow head can be properly increased, which improves the smelting effect. The utility model is provided with upper and lower water diversion cones, which ensures that the water flows reasonably and enhances the cooling effect of the end. The utility model has the advantages that the service life of the blow head is extended to more than 5 times of the molten blow head, the copper consumption is reduced, the replacement and the dismantlement of the blow head are convenient, and the production cost of the factory user is reduced.
Description
The utility model relates to a kind of built-up type extruding oxygen lance blow head, especially a kind of oxygen lance blow head that is applicable to the converter steelmaking field.
During converter steelmaking, oxygen lance blow head is in highest temperature district, molten bath, the working conditions extreme difference, its quality good or not (stability of parameter and reasonable structure), directly have influence on the blowing effect, life-span of oxygen lance and steel cost.Present domestic porous oxygen rifle mostly is the casting shower nozzle, though the casting shower nozzle is the important advance of shower nozzle manufacturing technology, casting shower nozzle inwall is surface irregularity often, inhomogeneity of wall thickness, and wall is thicker; Therefore, influence shower nozzle high temperature superficies, center, shower nozzle end is eaten into leak to by water-cooled internal layer flash heat transfer, the spray orifice distortion, the shower nozzle life-span is lower, and the life-span is generally below 200 stoves; Secondly, the casting shower nozzle increases hole count again and has any problem on the layout in design hole, makes shower nozzle disperse oxygen supply limited, influences the further rapid slag of steelmaking process and reduces splash; In addition, the yield rate of casting shower nozzle is lower, is generally 70%～75%, and massive casting shower nozzle yield rate only is 20～30%.
The purpose of this utility model provides a kind of novel combination type extruding oxygen lance blow head, adopts segmentation extrusion molding combination assembling, and has upper and lower minute water awl, and oxygen spraying hole can be provided with 3～6.
For achieving the above object, the utility model is to solve like this, built-up type extruding oxygen lance blow head, form by feeding oxygen tube, water inlet pipe, oxygen spraying hole, guide water board, rising pipe, the feeding oxygen tube lower end has branch water awl, guide water board and water inlet pipe be by being threaded, and oxygen spraying hole is made of spray orifice aditus laryngis section and shower nozzle end and the welding of spray orifice expansion segment, welds with feeding oxygen tube again.Spray orifice aditus laryngis section and shower nozzle end and spray orifice expansion segment are extrusion molding, and the shower nozzle end also has following minute water awl, has " O " type O-ring seal on the feeding oxygen tube, and oxygen rifle oxygen deliverng pipe is enclosed within on the feeding oxygen tube, relies on the sealing of " O " type O-ring seal.
After new type nozzle adopts segmentation extrusion molding combination assembling, can overcome the above-mentioned shortcoming of casting shower nozzle, improve the density of shower nozzle each several part, homogeneity and surface smoothness, thus wearing quality, the non-deformability that its heat conductivility improves shower nozzle improved, and suitably increase the shower nozzle hole count, raisingization slag ability and minimizing splash, further improve metallurgical effect, reduced the copper consumption of shower nozzle, improve the economic benefit of making and using producer.The guide water board of Reasonable Shape is set, and is furnished with upper and lower minute water awl, make the streamline of water reasonable, improve the end cooling performance.The raising of shower nozzle life-span ratio casting is more than 4 times.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Accompanying drawing 1 is the structural representation of built-up type extruding oxygen lance blow head.
A kind of built-up type extruding oxygen lance blow head, form by feeding oxygen tube (1), water inlet pipe (2), oxygen spraying hole (3), guide water board (4), rising pipe (5), it is characterized in that: feeding oxygen tube (1) lower end has branch water awl (6), guide water board (4) and water inlet pipe (2) are by being threaded, oxygen spraying hole (3) is welded with feeding oxygen tube (1) by spray orifice aditus laryngis section (7) and shower nozzle end and spray orifice expansion segment (8) welding formation again.When oxygen by feeding oxygen tube (1) when coming in, water coolant is also come in from water inlet pipe, water coolant is dividing on the feeding oxygen tube lower end under water awl (6) effect, make water coolant reasonably flow to guide water board (4) bottom leaking hole (11), bore under the effect of (9) at following minute water of shower nozzle end, reasonably flow to rising pipe (5) again, come out by rising pipe (5); Upper and lower minute water awl (6), (9) make the streamline of water reasonable, improve the end cooling performance.Spray orifice aditus laryngis section (7) and shower nozzle end and spray orifice expansion segment (8) they are the segmentation extrusion molding, improve the density of shower nozzle each several part, homogeneity and surface smoothness, thus improve its heat conductivility and cooling performance.New type nozzle adopts the segmentation extrusion molding to make the combination assembling be achieved.The raising of shower nozzle life-span ratio casting is more than 4 times.Because oxygen spraying hole of the present utility model (3) can be arranged 3～6, the cast article of comparable same size increases by a hole, has improved change slag ability greatly and has reduced splash, further improves metallurgical effect; Have " O " type O-ring seal (10) on the feeding oxygen tube (1), oxygen rifle oxygen deliverng pipe is enclosed within on the feeding oxygen tube (1), by " O " type O-ring seal (10) sealing, makes that dismounting is convenient.
Because the utility model adopts the nozzle sectional extrusion molding, improve the density of shower nozzle each several part, homogeneity and surface smoothness, thus improve its heat conductivility and cooling performance.Improve wearing quality, the non-deformability of shower nozzle, and suitably increase the shower nozzle hole count, raisingization slag ability and minimizing splash, further improve metallurgical effect, the guide water board of Reasonable Shape is set, upper and lower minute water awl arranged again, make the streamline of water reasonable, improve the end cooling performance.Can overcome the casting shower nozzle and the center, end be eaten into leak, the spray orifice distortion, the shower nozzle life-span is lower, increases the hole count difficulty, makes shower nozzle disperse oxygen supply limited, influence the further rapid slag of steelmaking process and the shortcoming of minimizing splash; In addition, the yield rate of casting shower nozzle is extremely low, be generally 70%～75%, massive casting shower nozzle yield rate only is 20～30%, new type nozzle adopts segmentation extrusion molding combination assembling, make the shower nozzle life-span more than 4 times, reduce the copper consumption of shower nozzle simultaneously, improve the economic benefit of making and using producer than the raising of casting.
Claims (3)
1. a built-up type pushes oxygen lance blow head, form by the feeding oxygen tube (1) that has " O " type O-ring seal (10), water inlet pipe (2), oxygen spraying hole (3), guide water board (4), rising pipe (5), it is characterized in that: feeding oxygen tube (1) lower end has branch water awl (6), guide water board (4) and water inlet pipe (2) are by being threaded, oxygen spraying hole (3) is welded with feeding oxygen tube (1) by spray orifice aditus laryngis section (7) and shower nozzle end and spray orifice expansion segment (8) welding formation again.
2. a kind of built-up type extruding oxygen lance blow head according to claim 1 is characterized in that: spray orifice aditus laryngis section (7) is extrusion molding with shower nozzle end and spray orifice expansion segment (8), and the shower nozzle end also has following minute water awl (9).
3. according to claim 1 and 2 described a kind of built-up type extruding oxygen lance blow heads, it is characterized in that: oxygen spraying hole (3) can be arranged 3～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250069 CN2318229Y (en) | 1997-11-24 | 1997-11-24 | Combined extrution oxygen gun blow head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97250069 CN2318229Y (en) | 1997-11-24 | 1997-11-24 | Combined extrution oxygen gun blow head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318229Y true CN2318229Y (en) | 1999-05-12 |
Family
ID=33956789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97250069 Expired - Fee Related CN2318229Y (en) | 1997-11-24 | 1997-11-24 | Combined extrution oxygen gun blow head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318229Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011367A (en) * | 2016-07-04 | 2016-10-12 | 中国船舶重工集团公司第七〇九研究所 | Steelmaking oxygen lance nozzle for converter |
-
1997
- 1997-11-24 CN CN 97250069 patent/CN2318229Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011367A (en) * | 2016-07-04 | 2016-10-12 | 中国船舶重工集团公司第七〇九研究所 | Steelmaking oxygen lance nozzle for converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |