CN2368616Y - Nozzles of oxygen lances - Google Patents
Nozzles of oxygen lances Download PDFInfo
- Publication number
- CN2368616Y CN2368616Y CN 99220513 CN99220513U CN2368616Y CN 2368616 Y CN2368616 Y CN 2368616Y CN 99220513 CN99220513 CN 99220513 CN 99220513 U CN99220513 U CN 99220513U CN 2368616 Y CN2368616 Y CN 2368616Y
- Authority
- CN
- China
- Prior art keywords
- oxygen
- utility
- model
- composite bed
- gun sprayer
- 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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- Coating By Spraying Or Casting (AREA)
- Continuous Casting (AREA)
Abstract
The utility model discloses a spray head of an oxygen lance. The utility model is composed of an oxygen passage, a water inlet passage, a water outlet passage, a steel pipe, a copper spray head, a composite layer and an oxygen spray hole. As the exterior surface of the copper spray head is provided with the composite layer, the surface of the utility model avoids corrosion, oxidation and scouring of the high-temperature slag iron liquor, the service life of the utility model is extended, the service life is two to six times longer than the spray head of the oxygen lance without the composite layer, the time of the gun change is reduced, the steel production capacity is improved, and the steel-smelting cost is reduced.
Description
The utility model relates to a kind of oxygen steelmaking oxygen blowing device, particularly relates to a kind of oxygen gun sprayer.
Existing steel making oxygen gun sprayer is that material is made with the casting fine copper, its casting compactness is low, crystal grain is thick, poor thermal conductivity, in steelmaking process, because the oxygen rifle is in stove during oxygen blast, high temperature furnace slag and molten iron that oxygen rifle jet splashes directly touch oxygen gun sprayer, make oxygen gun sprayer be subjected to the corrode of high temperature furnace slag and molten iron, easily produce geometry deformation, damaged surfaces, thus greatly reduce life-span of oxygen gun sprayer.
The purpose of this utility model is the disadvantage that exists at prior art, has proposed a kind of refractory erosion, high oxygen gun sprayer of life-span.
For achieving the above object, the utility model adopts a kind of new-type oxygen gun sprayer, and it is made of oxygen road, inlet channel, water outlet, steel pipe, copper shower nozzle, oxygen spraying hole, and its special character is that the outer surface of copper shower nozzle has covered one deck composite bed.
It has characteristics, and described composite bed is one deck electrodeposited coating.
It has another characteristics, and described composite bed is one deck sprayed coating.
It also has another characteristics, and the thickness of described composite bed is 0.03-0.15mm.
The outer surface of above-mentioned oxygen gun sprayer by electroplate, the method for spraying makes the oxygen gun sprayer outer surface form one deck resistance to oxidation, refractory erosion, composite bed that hardness is high, make the oxygen gun sprayer surface avoid corrode, the oxidation of high temperature sludge iron liquid, wash away, prolonged the service life of oxygen gun sprayer, improved 2-6 doubly than the life-span of the oxygen gun sprayer that composite bed is not arranged, reduced and changed the rifle time, improve output of steel, greatly reduced steel-making cost.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the half sectional view of the utility model oxygen gun sprayer.
Oxygen gun sprayer is by oxygen road 1, inlet channel 2, water outlet 3, steel pipe 4, copper shower nozzle 5, composite bed 6, oxygen spraying hole 7 formations such as grade, oxygen road 1, inlet channel 2, water outlet 3 be separately positioned on copper shower nozzle 5 in, in, outer three layers, copper shower nozzle 5 and steel pipe 4 adopt welding manner to link together, it is high temperature resistant that the outer surface of copper shower nozzle 5 is electroplated one deck, resistance to oxidation, the refractory erosion, the metal material that hardness is high, as chromium, chrome-nickel, chrome molybdenum, ferrochrome nickel alloy etc., make the outer surface of copper shower nozzle 5 form one deck electrodeposited coating, promptly the outer surface at copper shower nozzle 5 has covered one deck composite bed 6, and the optimum thickness of its composite bed 6 is 0.03-0.15mm.
During work, when the oxygen rifle in stove during oxygen blast owing to form one deck electrodeposited coating, the copper material of oxygen gun sprayer and high temperature furnace slag and molten iron that oxygen rifle jet splashes are isolated fully at the outer surface of copper shower nozzle 5.
Sprayed coating is identical with the structure of electrodeposited coating, difference composite bed 6 uses metal powder painting that paint spray guns will be by the combustion gas heating outer surface at copper shower nozzle 5, make the outer surface of copper shower nozzle 5 form one deck sprayed coating, promptly the outer surface at copper shower nozzle 5 has covered one deck composite bed 6, the optimum thickness of its composite bed 6 is 0.03-0.15mm, metal dust also is to adopt high temperature resistant, resistance to oxidation, refractory erosion, material that hardness is high, as Cr3C2-NiC2, WC-Co, Cr3C2, Al2O3, ZrO2 etc.
During work, when the oxygen rifle in stove during oxygen blast owing to form one deck sprayed coating, the copper material of oxygen gun sprayer and high temperature furnace slag and molten iron that oxygen rifle jet splashes are isolated fully at the outer surface of copper shower nozzle 5.
Claims (4)
1, a kind of oxygen gun sprayer is made of oxygen road (1), inlet channel (2), water outlet (3), steel pipe (4), copper shower nozzle (5), oxygen spraying hole (7), and it is characterized in that: the outer surface of copper shower nozzle (5) has covered one deck composite bed (6).
2, according to the described oxygen gun sprayer of claim 1, it is characterized in that: described composite bed (6) is one deck electrodeposited coating.
3, according to the described oxygen gun sprayer of claim 1, it is characterized in that: described composite bed (6) is one deck sprayed coating.
4, according to the described oxygen gun sprayer of claim 1, it is characterized in that: the thickness of described composite bed (6) is 0.03-0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99220513 CN2368616Y (en) | 1999-04-14 | 1999-04-14 | Nozzles of oxygen lances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99220513 CN2368616Y (en) | 1999-04-14 | 1999-04-14 | Nozzles of oxygen lances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2368616Y true CN2368616Y (en) | 2000-03-15 |
Family
ID=34011245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99220513 Expired - Fee Related CN2368616Y (en) | 1999-04-14 | 1999-04-14 | Nozzles of oxygen lances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2368616Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312041A (en) * | 2011-08-24 | 2012-01-11 | 济南程信利冶金备件有限公司 | Anti-corrosion method for oxygen lance nozzle and oxygen lance nozzle |
-
1999
- 1999-04-14 CN CN 99220513 patent/CN2368616Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312041A (en) * | 2011-08-24 | 2012-01-11 | 济南程信利冶金备件有限公司 | Anti-corrosion method for oxygen lance nozzle and oxygen lance nozzle |
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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 |