CN102699295A - Porous submersed nozzle - Google Patents
Porous submersed nozzle Download PDFInfo
- Publication number
- CN102699295A CN102699295A CN201210187078XA CN201210187078A CN102699295A CN 102699295 A CN102699295 A CN 102699295A CN 201210187078X A CN201210187078X A CN 201210187078XA CN 201210187078 A CN201210187078 A CN 201210187078A CN 102699295 A CN102699295 A CN 102699295A
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- Prior art keywords
- tapping hole
- arc side
- outer arc
- inner arc
- crystallizer
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- 238000010079 rubber tapping Methods 0.000 claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a porous submersed nozzle. Tapping holes are formed on the left side, the right side, the inner arc side and the outer arc side of the nozzle. According to the width and thickness of a casting section, the sizes of the tapping holes on the left and right sides and on the inner and outer arc sides and the tapping angles are independently set; and the tapping holes on the left and right sides and on the inner and outer arc sides are biased relative to the center of a crystallizer according to the needs, and in the process of casting a casting blank having an ultra thick section, molten steel in the crystallizer is reasonable in injection state, the heat of the main stream is dissipated, and uniform growth of a blank shell is facilitated.
Description
Technical field
The present invention relates to metallurgical technology field, particularly ultra heavv section be slab or square billet thickness greater than 450mm, circle base diameter is greater than 600mm) a kind of porous submersed nozzle of conticaster cast usefulness.
Background technology
Submersed nozzle is between tundish and crystallizer.The effect of submersed nozzle is to prevent secondary oxidation of steel, splash, control and get into the distribution of steel stream in crystallizer in the crystallizer, avoids hot-fluid to concentrate, and eliminates the casting billet surface lobe, helps floating foreign and prevents that covering slag is involved in.
The submersed nozzle parameter be influence that steel stream in the crystallizer flows, important factor in order that slag interface degree of stability and strand conduct heat.
Traditional submersed nozzle structure is only to establish tapping hole on left side, the right side at the mouth of a river; Traditional submersed nozzle left side, right side tapping hole center line and crystallizer transverse center line parallel.When pouring into a mould the strand of ultra heavv section, traditional submersed nozzle is unfavorable for the flow regime of molten steel beam, is unfavorable for disperseing the beam heat, is unfavorable for the even growth of base shell etc.
Summary of the invention
In order to overcome the defective of above-mentioned prior art; The object of the present invention is to provide a kind of porous submersed nozzle, when the strand of the ultra heavv section of cast, make that the molten steel beam state in the crystallizer is more reasonable; More help the dispersion of main flow heat, more help the even growth of base shell.
In order to achieve the above object, the technical solution of the present invention's employing is:
A kind of porous submersed nozzle is characterized in that, left side, right side, inner arc side, outer arc side at the mouth of a river are equipped with tapping hole 2,3,4,5.
Tapping hole 2,3 sizes on left side, right side are: wide * height is: 25mm ~ 100mm*25mm ~ 120mm or diameter are: φ 30mm ~ φ 120mm.
Tapping hole 2, the 3 positive pitch angles on left side, right side are: 0 °-15 °.
Tapping hole 2, the 3 downward inclination angle angles on left side, right side are: 0 °-40 °.
Tapping hole 4,5 positive pitches of inner arc side, outer arc side are: 0 °-15 °
Tapping hole 4, the 5 downward inclination angles of inner arc side, outer arc side are: 0 °-40 °.
Tapping hole 4,5 sizes of inner arc side, outer arc side are: wide * height is: 25mm ~ 100mm*25mm ~ 120mm or diameter are: φ 30mm ~ φ 120mm
The bias profile angle at left side, right side, inner arc side, outer arc side tapping hole 2,3,4,5 relative crystallizer centers is equal: 0 °-45 °.
The present invention is according to the width and the thickness of cast section, and the tapping hole of the tapping hole on left side, right side and inner arc side, outer arc side is big or small, tapping angle individual setting; And as required, the relative crystallizer center-biased of the tapping hole of left side, right side, inner arc side, outer arc side distributes; When the strand of the ultra heavv section of cast; Make that the molten steel beam state in the crystallizer is more reasonable, more help the dispersion of main flow heat, more help the even growth of base shell.
Description of drawings
Fig. 1 is the submersed nozzle sketch map, and wherein Fig. 1 a is the tapping hole sketch map of inner arc side, outer arc side, and Fig. 1 b is left side, right side tapping hole sketch map, and Fig. 1 c is a sectional view.
Fig. 2 is left side, right side tapping hole positive pitch sketch map.
Fig. 3 is left side, the downward inclination angle of right side tapping hole sketch map.
Fig. 4 is inner arc side, outer arc side tapping hole positive pitch sketch map.
Fig. 5 is inner arc side, the downward inclination angle of outer arc side tapping hole sketch map.
Fig. 6 is the bias profile sketch map at the relative crystallizer of the tapping hole center of left side, right side, inner arc side, outer arc side.
The specific embodiment
Below in conjunction with accompanying drawing structure of the present invention and major parameter are described in detail.
With reference to accompanying drawing 1, submersed nozzle body 1 is equipped with tapping hole 2,3,4,5 in its left side, right side, inner arc side, outer arc side; Tapping hole 2,3 sizes on left side, right side are: wide * height is: 25mm ~ 100mm*25mm ~ 120mm or diameter are: φ 30mm ~ φ 120mm; Tapping hole 4, the 5 wide * Gao Jun of inner arc side, outer arc side: 25mm ~ 100mm*25mm ~ 120mm or diameter are: φ 30mm ~ φ 120mm.
With reference to accompanying drawing 2, left side, right side tapping hole 2,3 positive pitches.Tapping hole 2, the 3 positive pitch angles on left side, right side are: 0 °-15 °.
With reference to accompanying drawing 3, left side, right side tapping hole 2,3 downward inclination angles.Tapping hole 2, the 3 downward inclination angle angles on left side, right side are: 0 °-40 °.
With reference to accompanying drawing 4, inner arc side, outer arc side tapping hole 4,5 positive pitches.Tapping hole 4, the 5 positive pitch angles of inner arc side, outer arc side are equal: 0 °-15 °.
With reference to accompanying drawing 5, inner arc side, outer arc side tapping hole 4,5 downward inclination angles.Tapping hole 4, the 5 downward inclination angle angles of inner arc side, outer arc side are: 0 °-40 °.
With reference to accompanying drawing 6, tapping hole 2,3,4, the 5 relative crystallizer center-biaseds of left side, right side, inner arc side, outer arc side distribute.Left side, right side, inner arc side, outer arc side tapping hole 2,3,4,5 relative crystallizer center-biased distribution angle are: 0 °-45 °.
The object of the present invention is to provide a kind of novel submersed nozzle.Left side, right side, inner arc side, outer arc side at the mouth of a river are equipped with tapping hole.According to the width and the thickness of cast section, the tapping hole of the tapping hole on left side, right side and inner arc side, outer arc side size, tapping angle individual setting; The relative crystallizer center-biased of the tapping hole of left side, right side, inner arc side, outer arc side distributes.When the strand of the ultra heavv section of cast, make that the molten steel beam state in the crystallizer is more reasonable, more help the dispersion of main flow heat, more help the even growth of base shell.The method has certain popularization value.
Claims (1)
1. a porous submersed nozzle is characterized in that, left side, right side, inner arc side, the outer arc side at the mouth of a river is equipped with tapping hole (2,3,4,5);
Tapping hole (2, the 3) size on left side, right side is: wide * height is: 25mm ~ 100mm*25mm ~ 120mm or diameter are: φ 30mm ~ φ 120mm;
Tapping hole (2,3) the positive pitch angle on left side, right side is: 0 °-15 °;
The tapping hole (2,3) on left side, right side inclination angle angle downwards is: 0 °-40 °;
The tapping hole of inner arc side, outer arc side (4,5) positive pitch angle is: 0 °-15 °;
The tapping hole of inner arc side, outer arc side (4,5) inclination angle angle downwards is: 0 °-40 °;
The tapping hole of inner arc side, outer arc side (4,5) size is: wide * height is: 25mm ~ 100mm*25mm ~ 120mm or diameter are: φ 30mm ~ φ 120mm;
Left side, right side, inner arc side, outer arc side tapping hole (2,3,4,5) the bias profile angle at crystallizer center relatively are: 0 °-45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187078XA CN102699295A (en) | 2012-06-08 | 2012-06-08 | Porous submersed nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187078XA CN102699295A (en) | 2012-06-08 | 2012-06-08 | Porous submersed nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102699295A true CN102699295A (en) | 2012-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210187078XA Pending CN102699295A (en) | 2012-06-08 | 2012-06-08 | Porous submersed nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102699295A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232417A (en) * | 1996-10-03 | 1999-10-20 | 维苏威坩埚公司 | Foundry nozzle with rhomboid back internal geometry and multi-component casting nozzle with variable effective discharge angle and method for flowing liquid metal through the same |
| CN201470878U (en) * | 2009-07-13 | 2010-05-19 | 河北钢铁股份有限公司 | Thin-slab continuous casting tundish submerged nozzle |
| CN201823930U (en) * | 2010-10-19 | 2011-05-11 | 维苏威高级陶瓷(苏州)有限公司 | Submerged nozzle with rotary outlet for continuous casting |
| JP2011189381A (en) * | 2010-03-15 | 2011-09-29 | Kurosaki Harima Corp | Long nozzle |
| CN202741706U (en) * | 2012-06-08 | 2013-02-20 | 中国重型机械研究院有限公司 | Water opening for casting of continuous casting machine |
-
2012
- 2012-06-08 CN CN201210187078XA patent/CN102699295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232417A (en) * | 1996-10-03 | 1999-10-20 | 维苏威坩埚公司 | Foundry nozzle with rhomboid back internal geometry and multi-component casting nozzle with variable effective discharge angle and method for flowing liquid metal through the same |
| CN201470878U (en) * | 2009-07-13 | 2010-05-19 | 河北钢铁股份有限公司 | Thin-slab continuous casting tundish submerged nozzle |
| JP2011189381A (en) * | 2010-03-15 | 2011-09-29 | Kurosaki Harima Corp | Long nozzle |
| CN201823930U (en) * | 2010-10-19 | 2011-05-11 | 维苏威高级陶瓷(苏州)有限公司 | Submerged nozzle with rotary outlet for continuous casting |
| CN202741706U (en) * | 2012-06-08 | 2013-02-20 | 中国重型机械研究院有限公司 | Water opening for casting of continuous casting machine |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20121003 |