CN2603091Y - Nozzle for quick dephosphorizing oxygen-gun - Google Patents
Nozzle for quick dephosphorizing oxygen-gun Download PDFInfo
- Publication number
- CN2603091Y CN2603091Y CN 03215459 CN03215459U CN2603091Y CN 2603091 Y CN2603091 Y CN 2603091Y CN 03215459 CN03215459 CN 03215459 CN 03215459 U CN03215459 U CN 03215459U CN 2603091 Y CN2603091 Y CN 2603091Y
- Authority
- CN
- China
- Prior art keywords
- jetting
- oxygen tube
- jetting oxygen
- big
- little
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a nozzle for a dephosphorizing oxygen gun of a converter, which is provided with an inner tube, a middle tube, an outer tube, an end bottom and an oxygen jetting tube. The slope angle between a pair of small jetting oxygen tubes which are connected with the inner tube, and an axial cord and the slope angle between a pair of big jetting oxygen tubes which are connected with the inner tube, and the axial cord are respective alpha #-[1] and alpha #-[2], and the alpha #-[2]: the alpha #-[1] is 1.5 to 3. The outlets of the small jetting oxygen tubes and the outlets of the big oxygen tubes are evenly distributed on the end bottom, the diameter ratio of the laryngeal orifices of the big jetting oxygen tubes and the laryngeal orifices of the small jetting oxygen tubes is 1.2 to 3, that is, d #-[2]: d #-[1] is 1.2 to 3, the area ratio of the outlets of the small jetting oxygen tubes and the laryngeal orifices of the small jetting oxygen tubes (D #-[1]: d #-[1]) # + [2] is 1.08 to 1.176, and the area ratio of the outlets of the big jetting oxygen tubes and the laryngeal orifices of the big jetting oxygen tubes (D #-[2]: d #-[2]) # + [2] is 1.08 to 1.176. The mach number of the outlets of the jetting oxygen tubes of the top blowing oxygen gun is bigger than 1. The utility model can not only improve top blowing agitating function, but also ensure enough impacting area, and obtain the technological requirement of rapid dephosphorization of the converter steel making.
Description
Technical field
The utility model relates to the smelting equipment parts of steel, the dephosphorization oxygen lance blow head of converter specifically.
Background technology
In converter steelmaking process, quick dephosphorization is the modern advanced technologies of producing the high quality steel grade that satisfies.In converter bottom blowing gas intensity deficiency, stir under the inadequate situation at the end, existing top blast dephosphorization oxygen lance spraying oxygen hole Mach 2 ship 1, and the stirring action of top blast is not enough, has prolonged the dephosphorization time, and energy consumption increases, the steel grade difficult quality guarantee.
The utility model content
The purpose of this utility model is exactly at the above-mentioned defective of prior art, disclose a kind of structure of quick dephosphorization oxygen lance blow head, top blow oxygen lance oxygen spraying hole Mach number both can improve the stirring action of top blast greater than 1, also can guarantee enough impact areas, reach the processing requirement of converter steelmaking quick dephosphorization.
The technical scheme that realizes the utility model purpose is: the utility model quick dephosphorization oxygen lance blow head, and casting has interior pipe, middle pipe, outer tube, bottom and jetting oxygen tube, and little jetting oxygen tube that links to each other with interior pipe and big jetting oxygen tube and axis press from both sides inclined angle alpha respectively in pairs
1And α
2, α
2: α
1Be 1.5～3, outlet of little jetting oxygen tube and big jetting oxygen tube outlet are distributed on the bottom, the ratio d of big jetting oxygen tube aditus laryngis and little jetting oxygen tube throat diameter
2: d
1Be 1.2～3, the ratio (D of the outlet of little jetting oxygen tube and the area of little jetting oxygen tube aditus laryngis
1: d
1)
2Be 1.08～1.176, the ratio (D of big jetting oxygen tube outlet and the area of big jetting oxygen tube aditus laryngis
2: d
2)
2Be 1.08～1.176.
The ratio d of the big jetting oxygen tube aditus laryngis of the utility model quick dephosphorization oxygen lance blow head and little jetting oxygen tube throat diameter
2: d
1Be 1.2～3, the ratio (D of the outlet of little jetting oxygen tube and the area of little jetting oxygen tube aditus laryngis
1: d
1)
2Be 1.08～1.176, the ratio (D of big jetting oxygen tube outlet and the area of big jetting oxygen tube aditus laryngis
2: d
2)
2Be 1.08～1.176, can guarantee top blow oxygen lance jetting oxygen tube outlet Mach 2 ship 1.1～1.5, can satisfy in converter bottom blowing gas intensity deficiency, stir under the inadequate situation at the end, realizes the requirement of quick dephosphorization with stronger top blast stirring action; Little jetting oxygen tube that links to each other with interior pipe and big jetting oxygen tube and axis press from both sides inclined angle alpha respectively in pairs
1And α
2, α
2: α
1Be 1.5～3, little jetting oxygen tube outlet and big jetting oxygen tube outlet are distributed on the bottom, and guaranteeing has enough top blast impact areas.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of first embodiment of the utility model quick dephosphorization oxygen lance spraying.
Diagram: 1, interior pipe; 2, middle pipe; 3, big jetting oxygen tube aditus laryngis; 4, big jetting oxygen tube; 5, outer tube; 6, big jetting oxygen tube outlet seam; 7, big jetting oxygen tube outlet; 8, bottom; 9, little jetting oxygen tube aditus laryngis; 10, little jetting oxygen tube; 11, little jetting oxygen tube outlet seam; 12, little jetting oxygen tube outlet; α
1Be little jetting oxygen tube and axis angle; α
2Be big jetting oxygen tube and axis angle; D
1Be little jetting oxygen tube exit diameter; D
2Be big jetting oxygen tube exit diameter; D
3Be little jetting oxygen tube outlet seam diameter; D
4Be big jetting oxygen tube outlet seam diameter; d
1Be little jetting oxygen tube throat diameter; d
2Be little jetting oxygen tube throat diameter.
Embodiment
As embodiment of the present utility model, as shown in Figure 1, the utility model quick dephosphorization oxygen lance blow head casting has interior pipe, middle pipe, outer tube, bottom and jetting oxygen tube, and little jetting oxygen tube 10 that links to each other with interior pipe 1 in pairs and big jetting oxygen tube 4 press from both sides inclined angle alpha respectively with axis
1And α
2, α
2: α
1Be 1.5～3, little jetting oxygen tube mouth 12 and big jetting oxygen tube outlet 7 are distributed on the bottom 8 big jetting oxygen tube aditus laryngis 3 and little jetting oxygen tube aditus laryngis 9 diameter ratio d
2: d
1Be 1.2～3, the ratio (D of the outlet 12 of little jetting oxygen tube and the area of little jetting oxygen tube aditus laryngis 9
1: d
1)
2Be 1.08～1.176, the ratio (D of big jetting oxygen tube outlet 7 and the area of big jetting oxygen tube aditus laryngis 3
2: d
2)
2Be 1.08～1.176.
The little jetting oxygen tube 10 that the utility model quick dephosphorization oxygen lance blow head links to each other with interior pipe 1 in pairs and the logarithm of big jetting oxygen tube 4, get two pairs of i.e. four hole shower nozzles, or three pairs of i.e. six hole shower nozzles, or four pairs be the octal shower nozzle, generally promptly can satisfy the needs of the dephosphorization oxygen rifle of existing operation converter.
When the utility model quick dephosphorization oxygen lance blow head carries out the operation of top blast spray oxygen dephosphorization in converter, the furnace high-temperature molten steel to nozzle end at the bottom of 8 high temperature corrode can cause the corrode of large and small jetting oxygen tube outlet to destroy, thereby change the ratio of jetting oxygen tube outlet and the area of jetting oxygen tube aditus laryngis, cause oxygen lance spraying oxygen Mach number to reduce, dephosphorization efficient reduces, and reduces the work-ing life of oxygen lance blow head.As preferable embodiment, as shown in Figure 1, be preferably on the bottom 8 big jetting oxygen tube outlet 7 and be provided with big jetting oxygen tube outlet seam 6, little jetting oxygen tube outlet 12 is provided with little jetting oxygen tube outlet seam 11, little jetting oxygen tube outlet seam diameter D
3Greater than little jetting oxygen tube exit diameter D
1, big jetting oxygen tube outlet seam diameter D
4Greater than big jetting oxygen tube exit diameter D
2, can protect the jetting oxygen tube outlet, the work-ing life of improving oxygen lance blow head.
Claims (3)
1, a kind of quick dephosphorization oxygen lance blow head has interior pipe, middle pipe, outer tube, bottom and jetting oxygen tube, it is characterized in that the little jetting oxygen tube (10) and the big jetting oxygen tube (4) that link to each other with interior pipe (1) in pairs press from both sides inclined angle alpha respectively with axis
1And α
2, α
2: α
1Be 1.5～3, little jetting oxygen tube outlet (12) and big jetting oxygen tube outlet (7) are distributed on the bottom (8), big jetting oxygen tube aditus laryngis (3) and little jetting oxygen tube aditus laryngis (9) diameter ratio d
2: d
1Be 1.2～3, the ratio (D of the area of little jetting oxygen tube outlet (12) and little jetting oxygen tube aditus laryngis (9)
1: d
1)
2Be 1.08～1.176, the ratio (D of the area of big jetting oxygen tube outlet (7) and big jetting oxygen tube aditus laryngis (3)
2: d
2)
2Be 1.08～1.176.
2, quick dephosphorization oxygen lance blow head as claimed in claim 1 is characterized in that the logarithm of said little jetting oxygen tube (10) that links to each other with interior pipe (1) in pairs and big jetting oxygen tube (4) is two pairs or three pairs or four pairs.
3, quick dephosphorization oxygen lance blow head as claimed in claim 1 or 2 is characterized in that the upward big jetting oxygen tube outlet in bottom (8) (7) is provided with big jetting oxygen tube outlet seam (6), and little jetting oxygen tube outlet (12) is provided with little jetting oxygen tube outlet seam (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215459 CN2603091Y (en) | 2003-03-05 | 2003-03-05 | Nozzle for quick dephosphorizing oxygen-gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03215459 CN2603091Y (en) | 2003-03-05 | 2003-03-05 | Nozzle for quick dephosphorizing oxygen-gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2603091Y true CN2603091Y (en) | 2004-02-11 |
Family
ID=34160266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03215459 Expired - Fee Related CN2603091Y (en) | 2003-03-05 | 2003-03-05 | Nozzle for quick dephosphorizing oxygen-gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2603091Y (en) |
-
2003
- 2003-03-05 CN CN 03215459 patent/CN2603091Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040211 Termination date: 20100305 |