CN201147837Y - Anti-oxidation protector for liquid steel - Google Patents
Anti-oxidation protector for liquid steel Download PDFInfo
- Publication number
- CN201147837Y CN201147837Y CNU2007200420982U CN200720042098U CN201147837Y CN 201147837 Y CN201147837 Y CN 201147837Y CN U2007200420982 U CNU2007200420982 U CN U2007200420982U CN 200720042098 U CN200720042098 U CN 200720042098U CN 201147837 Y CN201147837 Y CN 201147837Y
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- CN
- China
- Prior art keywords
- tundish
- molten steel
- inert gas
- water inlet
- river
- Prior art date
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Abstract
The utility model discloses a tundish molten steel anti-oxidation protector which comprises a tundish and a short water inlet which is arranged under the tundish. The protector is characterized in that the tundish is communicated with an inert gas output pipe; the inert gas output pipe is arranged on the side wall of the tundish or on a tundish cover. The short water inlet can move, and the upper surface of the short water inlet matches the lower surface of the inlet of the tundish; one side of the short water inlet is provided with a choke plug. The protector provided by the utility model inputs inert gas into the tundish to form a protecting layer on the space above the surface of the molten steel; meanwhile, the short water inlet is designed into a movable water inlet; when the short water inlet is replaced, the chock plug linked with one side of the short water inlet blocks the outlet of a ladle, thereby avoiding the problem that the molten steel is exposed in the air and oxidized. The protector provide by the utility model basically solves the problem of tundish molten steel oxidization by the two measures, so as to ensure the finished steel quality.
Description
Technical field:
The utility model relates to the anti-oxidation device of molten steel in the continuous-casting of steel billet process, is specifically related to the anti-oxidation device of molten steel of tundish.
Background technology:
Steel billet in casting process, the very easily oxidation by air of molten steel in the tundish (mainly show molten steel surface in the bag and when changing the short mouth of a river exposed molten steel oxidized), oxide inclusion increases in the strand and make, and influences steel quality.At present, to preventing the oxidized measure of taking of molten steel in the tundish, be to spread anti-oxidant protective agent on the molten steel surface, the application of this measure improves the oxidized degree of molten steel, but fails to tackle the problem at its root.
Summary of the invention:
The technical problems to be solved in the utility model provides a kind of tundish molten steel oxygen-proof protecting device, and molten steel can be not oxidized in the time of can making in the bag molten steel and change the short mouth of a river.
The utility model is achieved through the following technical solutions:
Tundish molten steel oxygen-proof protecting device comprises tundish, is arranged at the short mouth of a river of tundish below, and characteristics are that tundish is communicated with the inert gas efferent duct, and the inert gas efferent duct is arranged at the tundish sidewall or is arranged on the tundish lid.
Described inert gas efferent duct stretches in the tundish from the tundish side wall upper part, and extend to corresponding sidewall, or stretch in the tundish from middle clad, and extend to the two side of tundish long axis direction, be positioned on the corresponding tube wall of efferent duct of bag, level is to being provided with many holes.
Described inert gas is one or both mixing of argon gas, nitrogen.
The described short mouth of a river can be moved, the lower surface kissing of its upper surface and tundish outlet, the short mouth of a river one side
Be provided with plug.The described short mouth of a river is arranged on the track, and is connected with plunger rod.
The utility model compared with prior art has following obvious advantage:
One, the utility model will stretch into the two side that pipeline in the ladle extends to long axis direction; and level is provided with many through holes to corresponding tube wall; when blown inert gas in bag; inert gas by level to blowing out (and the non local molten steel surface of directly blowing; it is irregular that it is heated); and be full of above space, molten steel surface, thereby form protective layer.
Two, the utility model will be lacked the mouth of a river and will be designed to the movable mouth of a river, when changing the short mouth of a river, move the short mouth of a river, and the plug of the short mouth of a river one side is blocked the ladle outlet, and molten steel is exposed to oxidized problem in the air when having stopped to change the short mouth of a river.
To sum up, the utility model has solved tundish molten steel problem of oxidation substantially by these two measures, has guaranteed the finished steel quality.
Description of drawings:
Fig. 1 is the utility model cross-sectional schematic.
Fig. 2 is that Figure 1A-A is to cross-sectional schematic.
The specific embodiment:
As shown in Figure 1, the utility model comprises tundish, is arranged at the short mouth of a river of tundish below; Described tundish 1 is communicated with inert gas efferent duct 2, inert gas efferent duct 2 stretches in the tundish 1 from middle clad 4, and extend to the two side of tundish long axis direction, the tube wall that is positioned at the efferent duct 2 of tundish 1 is provided with many holes 3, and these hole 3 levels are to being arranged on the corresponding tube wall.
As shown in Figure 2, the described short mouth of a river 5 can be moved, the lower surface kissing of its upper surface and tundish outlet, and the short mouth of a river 5 one sides are associated with plug.The short mouth of a river 5 is arranged on the track and (does not provide diagram), and is connected with plunger rod 6.
In the present embodiment, inert gas is selected argon gas for use.
Claims (7)
1, tundish molten steel oxygen-proof protecting device; comprise tundish, be arranged at the short mouth of a river of tundish below; it is characterized in that: tundish is communicated with the inert gas efferent duct, and described inert gas efferent duct is arranged at the tundish sidewall or is arranged on the tundish lid.
2, tundish molten steel oxygen-proof protecting device according to claim 1, it is characterized in that: the inert gas efferent duct stretches in the tundish from the tundish side wall upper part, and extends to corresponding sidewall, and tube wall is provided with the hole.
3, tundish molten steel oxygen-proof protecting device according to claim 1, it is characterized in that: the inert gas efferent duct stretches in the tundish from middle clad, and extends to the two side of tundish long axis direction, and tube wall is provided with the hole.
4, as tundish molten steel oxygen-proof protecting device as described in claim 2 or 3, it is characterized in that: the tube wall of described inert gas efferent duct is provided with the hole, and this hole horizontal is to being arranged on the corresponding tube wall.
5, tundish molten steel oxygen-proof protecting device according to claim 1, it is characterized in that: described inert gas is one or both mixing of argon gas, nitrogen.
6, tundish molten steel oxygen-proof protecting device according to claim 1, it is characterized in that: the described short mouth of a river can be moved, the lower surface kissing of its upper surface and tundish outlet, the short mouth of a river one side is provided with plug.
7, as tundish molten steel oxygen-proof protecting device as described in the claim 6, it is characterized in that: the described short mouth of a river is arranged on the track, and is connected with plunger rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200420982U CN201147837Y (en) | 2007-12-06 | 2007-12-06 | Anti-oxidation protector for liquid steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200420982U CN201147837Y (en) | 2007-12-06 | 2007-12-06 | Anti-oxidation protector for liquid steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147837Y true CN201147837Y (en) | 2008-11-12 |
Family
ID=40115605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200420982U Expired - Fee Related CN201147837Y (en) | 2007-12-06 | 2007-12-06 | Anti-oxidation protector for liquid steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147837Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682826A (en) * | 2013-08-26 | 2016-06-15 | 日新制钢株式会社 | Continuous casting method |
| CN105964999A (en) * | 2016-06-17 | 2016-09-28 | 天津市津和双金属线材有限公司 | Casting ladle filtering device |
| CN106111963A (en) * | 2016-07-18 | 2016-11-16 | 嘉善鑫海精密铸件有限公司 | A kind of pre-anti-oxidation treatment device of molten iron |
| CN108326260A (en) * | 2018-01-26 | 2018-07-27 | 济南韶欣耐磨材料有限公司 | A kind of manufacturing method of wear-resisting hammer head of hammer crusher |
-
2007
- 2007-12-06 CN CNU2007200420982U patent/CN201147837Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682826A (en) * | 2013-08-26 | 2016-06-15 | 日新制钢株式会社 | Continuous casting method |
| CN105964999A (en) * | 2016-06-17 | 2016-09-28 | 天津市津和双金属线材有限公司 | Casting ladle filtering device |
| CN106111963A (en) * | 2016-07-18 | 2016-11-16 | 嘉善鑫海精密铸件有限公司 | A kind of pre-anti-oxidation treatment device of molten iron |
| CN106111963B (en) * | 2016-07-18 | 2018-04-27 | 嘉善鑫海精密铸件有限公司 | A kind of pre- anti-oxidation treatment device of molten iron |
| CN108326260A (en) * | 2018-01-26 | 2018-07-27 | 济南韶欣耐磨材料有限公司 | A kind of manufacturing method of wear-resisting hammer head of hammer crusher |
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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: 20081112 Termination date: 20101206 |