CN2737488Y - Submersed pouring nozzle for continuous casting wide and thick plate slab - Google Patents
Submersed pouring nozzle for continuous casting wide and thick plate slab Download PDFInfo
- Publication number
- CN2737488Y CN2737488Y CN 200420097329 CN200420097329U CN2737488Y CN 2737488 Y CN2737488 Y CN 2737488Y CN 200420097329 CN200420097329 CN 200420097329 CN 200420097329 U CN200420097329 U CN 200420097329U CN 2737488 Y CN2737488 Y CN 2737488Y
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- Prior art keywords
- crystallizer
- utility
- model
- pouring nozzle
- submersed
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- Expired - Fee Related
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Abstract
The utility model provides a submersed pouring nozzle for continuous casting, comprising a nozzle body, a slag line, an inner bore and side openings which distribute uniformly. The utility model is characterized in that the cross-section of the inner bore of the pouring nozzle is in oval or flat shape. Comparing with the prior art, the pouring nozzle inserting into the crystallizer is in flat shape; the maximum physical dimension of the flat surface is greater than or equal to the thickness of the bar plate, so the melting steel outgoing from the side opening of the tapping can be easily filled in the inner corner of the crystallizer. The temperature distribution of the melting steel in the crystallizer is ensured to be even. The utility model has the advantages of broad equivalent temperature range, small temperature gradient and strong feeding capacity. Thus, the trash and the air bubbles can easily float upward; the melting steel component is even; blind angles appearance in the crystallizer is prevented for the billet quality.
Description
Technical field
The utility model relates to a kind of immersion water gap for continuously casting, specifically is the submersed nozzle that the generous slab of a kind of continuous pouring is used.
Background technology
Submersed nozzle is steel mill's continuous casting must obligato parts with equipment, and it is except having guiding steel stream, and main is control and improves the flow regime of steel stream in crystallizer.Cast thickness is greater than 150mm in the prior art, flakiness ratio is that the used submersed nozzle of the slab of 8-25 is generally cylindric, leave two tapping side openings of symmetry at mouth of a river lower end edge crystallizer width, there is following shortcoming in molten steel when flowing into crystallizer: it is inhomogeneous that 1 crystallizer content is prone to part, particularly position, corner liquid steel temperature, and field trash, bubble are difficult for defectives such as come-up.Be prone to the part in 2 crystallizers and seethe, cause volume slag phenomenon.
Summary of the invention
The utility model provides a kind of continuous pouring submersed nozzle that generous slab is used, in order to solve the existing problem of above-mentioned existing submersed nozzle.
In order to reach the purpose that solves the problems of the technologies described above, the utility model provides a kind of immersion water gap for continuously casting, and it comprises mouth of a river body, slag line, endoporus and equally distributed side opening, it is characterized in that mouth of a river bore profile is ellipse or pancake.
The utility model can also have following feature: the thickness of mouth of a river body waist full-size a 〉=cast slab.
The utility model can also have following feature: the angle of side opening center line and inner hole centreline is 60 °≤α≤90 °.
The utility model compared with prior art, because the mouth of a river of inserting in the crystallizer becomes flat, therefore the flat horizontal surface biggest size of element is more than or equal to slab thickness,, the molten steel that flows out from the side opening of tapping is easy to be filled into corner in the crystallizer, guarantees that the crystallizer liquid steel temperature is evenly distributed.Like this, the isothermal wide ranges, thermograde is little, and feeding capacity is strong, helps field trash, bubble floating, and makes molten steel composition even, prevents to occur the dead angle in the crystallizer, influences billet quality.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further details:
Fig. 1 is the utility model structure master cutaway view;
Fig. 2 is the utility model structure side cutaway view;
Fig. 3 is the utility model structure vertical view;
Fig. 4 is the A-A cutaway view among Fig. 1.
1, body; 1-1, body head; 1-2, body waist; 2, slag line; 3, endoporus; 4, side opening.
The specific embodiment
Referring to Fig. 1 one Fig. 4, in order to overcome the defective of prior art, utility model provides a kind of improved submersed nozzle, and this submersed nozzle comprises mouth of a river body 1, slag line 2, endoporus 3 and side opening 4, and endoporus 3 sections in the mouth of a river are ellipse or pancake.
The angle of 4 heart lines and endoporus 3 center lines is 60 °≤α≤90 ° in the side opening.
Certainly, the utility model is not limited to above-mentioned giving an example, and in essence intention scope of the present utility model, the utility model also has many variations, remodeling or replacement, all should belong to protection domain of the present utility model.
Claims (3)
1. immersion water gap for continuously casting, it comprises mouth of a river body (1), slag line (2), endoporus (3) and equally distributed side opening (4), it is characterized in that mouth of a river bore profile is ellipse or pancake.
2. submersed nozzle as claimed in claim 1 is characterized in that the thickness of mouth of a river body waist (1-2) full-size a 〉=cast slab.
3. submersed nozzle as claimed in claim 1, the angle that it is characterized in that side opening center line and inner hole centreline are 60 °≤α≤90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420097329 CN2737488Y (en) | 2004-10-25 | 2004-10-25 | Submersed pouring nozzle for continuous casting wide and thick plate slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420097329 CN2737488Y (en) | 2004-10-25 | 2004-10-25 | Submersed pouring nozzle for continuous casting wide and thick plate slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737488Y true CN2737488Y (en) | 2005-11-02 |
Family
ID=35347403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420097329 Expired - Fee Related CN2737488Y (en) | 2004-10-25 | 2004-10-25 | Submersed pouring nozzle for continuous casting wide and thick plate slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737488Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229576B (en) * | 2007-01-25 | 2011-06-01 | 鞍钢股份有限公司 | Slag line control method of continuous casting crystallizer |
| CN102665967A (en) * | 2009-10-21 | 2012-09-12 | 维苏威集团有限公司 | Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle |
-
2004
- 2004-10-25 CN CN 200420097329 patent/CN2737488Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229576B (en) * | 2007-01-25 | 2011-06-01 | 鞍钢股份有限公司 | Slag line control method of continuous casting crystallizer |
| CN102665967A (en) * | 2009-10-21 | 2012-09-12 | 维苏威集团有限公司 | Pouring nozzle and assembly of such a pouring nozzle with an inner nozzle |
| CN102665967B (en) * | 2009-10-21 | 2015-05-20 | 维苏威集团有限公司 | Pouring nozzle and assembly of such a pouring nozzle with an inner 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 |