CN103567423A - Slag stopping wall of tundish - Google Patents
Slag stopping wall of tundish Download PDFInfo
- Publication number
- CN103567423A CN103567423A CN201210278146.3A CN201210278146A CN103567423A CN 103567423 A CN103567423 A CN 103567423A CN 201210278146 A CN201210278146 A CN 201210278146A CN 103567423 A CN103567423 A CN 103567423A
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- wall
- steel
- slag stopping
- molten steel
- tundish
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a slag stopping wall of a tundish. The slag stopping wall is enclosed by a front wall body, a rear wall body and side wall bodies, wherein the middle position of the front wall body is provided with a steel flowing hole through which molten steel passes. The slag stopping wall is characterized in that a cylindrical zirconium ring made of zirconium materials is embedded on the hole wall of the steel flowing hole. The slag stopping wall disclosed by the invention has the advantages that the cylindrical zirconium ring made of the zirconium materials is embedded in the steel flowing hole of the slag stopping wall and resists washing of the molten steel, so that the strength of the part of the steel flowing hole is enhanced, and the service life of the slag stopping wall is prolonged; since the steel flowing hole resists etching of the molten steel, the designed flow field of the tundish in the use process is not easily changed; the purifying action of the slag stopping wall on the molten steel can be fully achieved.
Description
Technical field
The present invention relates to the skimming device in a kind of continuous casting of iron and steel tundish, especially a kind of slag blocking wall.
Background technology
Tundish is in continuous casting of iron and steel process, to remove the important device of molten steel field trash, removes the quality that molten steel field trash can improve molten steel, and for effectively removing molten steel field trash, it is the most general technical measures that slag blocking wall is set in tundish.Without slag blocking wall in the situation that, field trash injects after tundish with molten steel, has a larger part at the bottom of the bag of tundish, directly to flow to outlet with molten steel, is unfavorable for the removal of field trash; In the situation that having slag blocking wall; field trash injects tundish with molten steel and runs into after slag blocking wall; there is more field trash to reflux to liquid level; increased the chance that protected slag is captured; and form large circulation after by slag blocking wall; field trash time of staying in tundish is extended, increased its probability contacting with end face, be conducive to the removal of field trash.
The slag blocking wall of prior art is made by magnesia or magnalium material, in application, slag blocking wall can be damaged, the damage of finding slag blocking wall by research normally occurs at steel outlet hole (being the hole that the molten steel that arranges on slag blocking wall passes through) position, under the physics and chemistry effect of molten steel, borehole enlargement, and be inhomogeneous expansion, changed thus originally in aperture and the flow field of hydraulic analogy and calculating, can not play the effect of original design.After steel outlet hole constantly expands, reduced the wall degree of slag blocking wall body, destroy by rush of water after finally making thus slag blocking wall fracture.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of slag blocking wall of tundish, and the intensity at steel outlet hole position is increased, and improves the service life of slag blocking wall.
The slag blocking wall of tundish of the present invention, comprises the steel outlet hole 7 that allows molten steel pass through, and is inlaid with the zirconium ring 3 of the drum made from zirconium material on the hole wall of the steel outlet hole 7 described in it is characterized in that.
As further improvement, the outer wall of described zirconium ring 3 is set to truncated conical shape, and one end of its great circle is towards the flow direction of molten steel, and the inwall of zirconium ring 3 is cylindrical, and the shape of the hole wall of steel outlet hole 7 is similar to the outer wall of zirconium ring 3.
The present invention is inlaid with the zirconium ring of zirconium material in the steel outlet hole of slag blocking wall, and the resistance to molten steel of this zirconium ring washes away, and strengthens the intensity at steel outlet hole position, improves the service life of slag blocking wall.
Due to the anti-molten steel etch of steel outlet hole, in use procedure, the design flow field of tundish is not easy to change, and slag blocking wall is able to abundant realization to the catharsis of molten steel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
The specific embodiment
The embodiment of existing accompanying drawings slag blocking wall of the present invention, slag blocking wall body 1 is connected and surrounds with side wall body 6 by front body of wall 2, back wall 4; The integral body of slag blocking wall body 1 is the little structure in large bottom, top, front body of wall 2 is an arc shape, back wall 4 and side wall body 6 are flat shape, on front body of wall 2, be provided with a plurality of steel outlet holes 7 that allow molten steel pass through, the top of back wall 4 is provided with the slag notch 5 for the dovetail groove of slagging tap, and it is characterized in that being inlaid with on the hole wall of described steel outlet hole 7 the zirconium ring 3 of the drum that zirconium material makes.
For the more resistance to molten steel in steel outlet hole position is impacted, the outer wall of described zirconium ring 3 is set to truncated conical shape, and one end of its great circle is in the inner side of front body of wall 2, towards the flow direction of molten steel, the inwall of zirconium ring 3 is cylindrical, and the shape of the hole wall of steel outlet hole 7 is similar to the outer wall of zirconium ring 3.
Slag blocking wall of the present invention, because zirconium ring 3 use zirconium materials are made, resistance to molten steel washes away, and has improved the intensity of steel outlet hole, therefore in use can not make steel outlet hole hole enlargement, and extended the service life of slag blocking wall.
The technical scheme of zirconium ring is set in steel outlet hole, without the impact on the flow field of original tundish design that arranges of considering zirconium ring 3, can on the slag blocking wall of various shapes, implement, be not limited only to the shape of the slag blocking wall described in the present embodiment, the internal diameter of zirconium ring 3 should be identical with the aperture of former steel outlet hole certainly.So every slag blocking wall that zirconium ring is set in steel outlet hole, all in protection scope of the present invention.
Claims (2)
1. a slag blocking wall for tundish, comprises the steel outlet hole (7) that allows molten steel pass through, and is inlaid with the zirconium ring (3) of the drum made from zirconium material on the hole wall of the steel outlet hole (7) described in it is characterized in that.
2. slag blocking wall according to claim 1, the outer wall that it is characterized in that described zirconium ring (3) is set to truncated conical shape, one end of its great circle is towards the flow direction of molten steel, the inwall of zirconium ring (3) is cylindrical, and the shape of the hole wall of steel outlet hole (7) is similar to the outer wall of zirconium ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278146.3A CN103567423A (en) | 2012-07-28 | 2012-07-28 | Slag stopping wall of tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278146.3A CN103567423A (en) | 2012-07-28 | 2012-07-28 | Slag stopping wall of tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103567423A true CN103567423A (en) | 2014-02-12 |
Family
ID=50040622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210278146.3A Pending CN103567423A (en) | 2012-07-28 | 2012-07-28 | Slag stopping wall of tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103567423A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999063A (en) * | 2015-08-03 | 2015-10-28 | 武汉科技大学 | Inclusion catching device for continuous casting tundish-used dual-retaining wall structure |
| CN108380849A (en) * | 2018-06-01 | 2018-08-10 | 常州凌风超智科技信息咨询有限公司 | A kind of application process of tundish used for vacuum ingot casting |
| CN111448012A (en) * | 2017-12-11 | 2020-07-24 | 株式会社Posco | Molten material processing apparatus |
-
2012
- 2012-07-28 CN CN201210278146.3A patent/CN103567423A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999063A (en) * | 2015-08-03 | 2015-10-28 | 武汉科技大学 | Inclusion catching device for continuous casting tundish-used dual-retaining wall structure |
| CN104999063B (en) * | 2015-08-03 | 2017-03-08 | 武汉科技大学 | Continuous casting production pair barrier wall structure field trash trap settings |
| CN111448012A (en) * | 2017-12-11 | 2020-07-24 | 株式会社Posco | Molten material processing apparatus |
| CN108380849A (en) * | 2018-06-01 | 2018-08-10 | 常州凌风超智科技信息咨询有限公司 | A kind of application process of tundish used for vacuum ingot casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |