CN2329670Y - Reinforced casted multi-hole central water-cooled oxygen lance blow head - Google Patents
Reinforced casted multi-hole central water-cooled oxygen lance blow head Download PDFInfo
- Publication number
- CN2329670Y CN2329670Y CN 98221684 CN98221684U CN2329670Y CN 2329670 Y CN2329670 Y CN 2329670Y CN 98221684 CN98221684 CN 98221684 CN 98221684 U CN98221684 U CN 98221684U CN 2329670 Y CN2329670 Y CN 2329670Y
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- CN
- China
- Prior art keywords
- oxygen lance
- shower nozzle
- blow head
- cooled oxygen
- reinforced
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- 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
A reinforced cast multi-hole central water-cooled oxygen lance blow head of the utility model belongs to a matching blow head of an oxygen blast lance in a smelting furnace, comprising an air inlet tube, a middle tube, an outer tube, oxygen blast tubes and an end, wherein, the number of the oxygen blast tubes is at least three. When cast, the blow head is provided with more than two reinforcing cooling ribs in a central interior side of the end, which enhances the end strength of the blow head, guarantees a favorable cooling effect, and extends the service life.
Description
The utility model strengthens casting poriferous circular water cooled oxygen lance shower nozzle, relates to steelmaking equipment, and specifically a kind of supporting shower nozzle of oxygen-blowing gun in the furnace includes feeding oxygen tube, middle pipe, outer tube, oxygen lance and end, and oxygen lance is at least three.
Prior art coverter pig casting poriferous circular water cooled oxygen lance shower nozzle, oxygen lance blow head end Working environment is very abominable in stove, high temperature, dry slag are the principal elements that causes shower nozzle to damage, contradiction mainly is to improve cooling efficiency, end casting wall thickness is thin as far as possible, and thin excessively end wall thickness causes end intensity, non-deformability and resistance to corrosion to reduce, and greatly restricts shower nozzle work-ing life.
The purpose of this utility model just is at the deficiencies in the prior art, discloses a kind of technical scheme of taking into account shower nozzle cooling efficiency and intensity, can both improve shower nozzle end intensity, and guaranteeing again has favorable cooling effect, increases the service life.
The utility model strengthens casting poriferous circular water cooled oxygen lance shower nozzle, still include inlet pipe, middle pipe, outer tube, oxygen lance and end, oxygen lance has three at least, the technical measures that realize the utility model purpose are: when the casting shower nozzle, be provided with reinforcing cooling muscle more than two in shower nozzle end center inside.
Be provided with many reinforcings in shower nozzle end center inside and cool off muscle, play the effect that strengthens end intensity on the one hand, play the contact area that increases inboard, end and water coolant on the other hand again, help improving the cooling performance of water coolant the end.Compared with prior art, under identical end wall thickness, shower nozzle of the present utility model end intensity increases, and cooling efficiency also increases, and can improve the non-deformability and the work-ing life of shower nozzle.
Below in conjunction with accompanying drawing the utility model and embodiment are described further.
Fig. 1 is the structure cross-sectional schematic of an embodiment of the present utility model;
Fig. 2 looks up structural representation for the end of Fig. 1.
As an embodiment of the present utility model, as depicted in figs. 1 and 2, the utility model strengthens casting poriferous circular water cooled oxygen lance shower nozzle and includes feeding oxygen tube 1, middle pipe 2, outer tube 3, oxygen lance 5 and end 7, oxygen lance 5 is at least three, be illustrated as four, oxygen blows to molten steel in the stove by inlet pipe 1 more equably through many oxygen lances 5, water coolant is forced cooling spray end 7 by pipe 2 front end middle sleeves 4 forward water eliminators 6 water conservancy diversion in middle pipe 2 warps, flow out by outer tube 3 at last, 10 inboard many reinforcing cooling muscle places that are provided with can obtain bigger cooling area to water coolant at the center, end on the one hand, reinforce under the guiding of cooling off muscle 9 at many on the other hand, also favourable raising cooling-water flow speed can improve the end cooling efficiency again.
As preferred embodiment, as depicted in figs. 1 and 2,, preferably on middle sleeve 4 front end water eliminators 6 of the present utility model, water coolant tap hole 8 is set again in order further to improve the flow characteristics of water coolant in the shower nozzle end, help strengthening cooling performance.
As a kind of better embodiment of the present utility model, as depicted in figs. 1 and 2, the front end of shower nozzle end 7 is preferably the cone form, this cone angle of throat β can be 5 °-30 °, its major advantage is that cone shower nozzle end surface-area reduces, also reduced by thermal radiation, also favourable raising water coolant flow velocity, the favourable splash in cone shower nozzle end to the slag on 7 end faces of shower nozzle end flows along inclined end face on the other hand, the rifle head is difficult for dry slag, both favourable reduction shower nozzle end region temperature can reduce the corrosion of slag to the rifle head again, the work-ing life of favourable prolongation shower nozzle.
Claims (4)
1, a kind of enhancing casting poriferous circular water cooled oxygen lance shower nozzle includes feeding oxygen tube, middle pipe, outer tube, oxygen lance and end, and oxygen lance is at least three, it is characterized in that being provided with in inboard, center, end (10) reinforcing cooling muscle (9) more than two.
2, strengthen casting poriferous circular water cooled oxygen lance shower nozzle according to claim 1, it is characterized in that middle sleeve (4) front end water eliminator (6) is provided with water coolant tap hole (8).
3, strengthen casting poriferous circular water cooled oxygen lance shower nozzle as claimed in claim 1 or 2, it is characterized in that its end (7) front end is a cone.
4, as enhancing casting poriferous circular water cooled oxygen lance shower nozzle as described in the claim 3, it is characterized in that its end (7) front end cone angle of throat β is 5 °-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221684 CN2329670Y (en) | 1998-07-02 | 1998-07-02 | Reinforced casted multi-hole central water-cooled oxygen lance blow head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221684 CN2329670Y (en) | 1998-07-02 | 1998-07-02 | Reinforced casted multi-hole central water-cooled oxygen lance blow head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329670Y true CN2329670Y (en) | 1999-07-21 |
Family
ID=33973190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98221684 Expired - Fee Related CN2329670Y (en) | 1998-07-02 | 1998-07-02 | Reinforced casted multi-hole central water-cooled oxygen lance blow head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329670Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144533A (en) * | 2019-09-24 | 2022-03-04 | 西门子（中国）有限公司 | Oxygen gas transfer device, method for manufacturing oxygen gas transfer device, laval nozzle, and method for manufacturing laval nozzle |
-
1998
- 1998-07-02 CN CN 98221684 patent/CN2329670Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144533A (en) * | 2019-09-24 | 2022-03-04 | 西门子（中国）有限公司 | Oxygen gas transfer device, method for manufacturing oxygen gas transfer device, laval nozzle, and method for manufacturing laval 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 |