CN201376086Y - Tundish - Google Patents
Tundish Download PDFInfo
- Publication number
- CN201376086Y CN201376086Y CN200920118211U CN200920118211U CN201376086Y CN 201376086 Y CN201376086 Y CN 201376086Y CN 200920118211 U CN200920118211 U CN 200920118211U CN 200920118211 U CN200920118211 U CN 200920118211U CN 201376086 Y CN201376086 Y CN 201376086Y
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- CN
- China
- Prior art keywords
- molten steel
- tundish
- permanent layer
- pour mass
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a tundish, which comprises a permanent layer and an operating layer arranged on the inner surface of the permanent layer, the bottom of the permanent layer is provided with an air curtain barricade which comprises a casting body and a penetrative plate fixed on the casting body, an air compartment is formed between the casting body and the penetrative plate and is communicated with the outside via a vent pipe. While ensuring increased steel penetration amount and flow velocity of molten steel of the tundish, the utility model is provided with, within the tundish, an air curtain barricade, with which argon is fed into the molten steel to dispersedly form a large amount of tiny air bubbles which can adsorb harmful gases such as N, H, O and the like in the molten steel to thereby reduce the content of these harmful gas elements in the molten steel; the tiny bubbles flows upwards to agitate the molten steel, which effectively drives inorganic nonmetallic inclusion such as oxides, nitrides, sulfides, silicates and the like to float upwards and then to be adsorbed by slag on the surface of the molten steel, as a result, the molten steel can be further enhanced in purity.
Description
Technical field
The utility model relates to a kind of tundish.
Background technology
At present, along with applying of China's high-efficient continuous casting technology, the continuous pouring stove number of continuous casting and the pulling rate of continuous casting improve constantly, and a new problem arose again.The steel-passing amount of tundish and molten steel flow speed increase aggravation molten steel wash away refractory material, and the slag weir refractory products descends service life; The molten steel flow speed increase has reduced the time of non-metallic inclusion come-up relatively in the tundish, and the purification of molten steel effect is weakened to some extent, can not effectively eliminate nozzle clogging.As a whole, the tendency of the needs of high-efficient continuous casting technology development has appearred satisfying in the slag blocking wall refractory products.
The utility model content
The purpose of this utility model is to provide a kind of purify hot metal that has, and eliminates the tundish of nozzle clogging, raising caster work rate.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of tundish, comprise permanent layer and be arranged on working lining on the permanent layer inner surface, it is characterized in that: described permanent layer bottom is provided with an air curtain barricade wall, described air curtain barricade wall comprises pour mass and the air permeable plate that is connected with pour mass, form air chamber between described pour mass and the air permeable plate, described air chamber is in communication with the outside by breather pipe.
Preferably, described pour mass is connected with the air permeable plate cast; Cast connects simple and convenient, and relatively firmly, good seal performance prevents that the gas leakage from causing energy waste.
Preferably, described pour mass is provided with one and is used for fixing the boss that connects permanent layer; Be provided with the boss that is used to install and fix pour mass, under the situation that does not increase air curtain barricade wall work part thickness, make air curtain barricade wall and permanent layer contact area increase greatly, connection between the two is more firm, is difficult for loosening, safe under molten steel impacts.
Preferably, described boss is arranged on the both sides of pour mass; Both sides are provided with more can strengthen firm degree, and can keep inherent balance.
Preferably, be provided with the groove suitable bottom the described permanent layer with boss.
Compared with prior art, the utility model has the advantages that: in steel-passing amount that guarantees tundish and molten steel flow speed increase, one air curtain barricade wall is set in tundish, can in molten steel, be blown into a large amount of trickle bubbles of the diffusing formation of Ya Qi Shen by air curtain barricade wall, can adsorb pernicious gases such as N, H in the molten steel, O, reach the content that reduces these pernicious gas elements in the molten steel; Trickle bubble floating, play the effect of stirring molten steel, take up inorganic non-metallic inclusion floating such as oxide in the molten steel, nitride, sulfide, silicate effectively, make them by the absorption of the slag charge of molten steel face, the cleanliness factor of molten steel can be further improved.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a kind of tundish structure schematic diagram of the utility model;
Fig. 2 is Figure 1A-A place cutaway view.
The specific embodiment
As Fig. 1, Figure 2 shows that an embodiment of the present utility model, a kind of tundish, comprise permanent layer 1 and be arranged on working lining 2 on permanent layer 1 inner surface, described permanent layer 1 bottom is provided with an air curtain barricade wall, described air curtain barricade wall comprises pour mass 31 and is fixed on air permeable plate 32 on the pour mass 31, form air chamber 5 between described pour mass 31 and the air permeable plate 32, described air chamber 5 is in communication with the outside by breather pipe 4, described pour mass 31 is connected with air permeable plate 32 cast, cast connects simple and convenient, relatively firmly, good seal performance prevents that the gas leakage from causing energy waste.Described pour mass 31 is provided with one and is used for fixing the boss 311 that connects permanent layer 1, described boss 311 is arranged on the both sides of pour mass 31, be provided with the boss that is used to install and fix pour mass, under the situation that does not increase air curtain barricade wall work part thickness, make air curtain barricade wall and permanent layer contact area increase greatly, connection between the two is more firm, under molten steel impacts, be difficult for loosening, safe, both sides are provided with more can strengthen firm degree, and can keep inherent balance.Described permanent layer 1 bottom is provided with the groove 11 suitable with boss 311.
Claims (5)
1. tundish, comprise permanent layer (1) and be arranged on working lining (2) on permanent layer (1) inner surface, it is characterized in that: described permanent layer (1) bottom is provided with an air curtain barricade wall, described air curtain barricade wall comprises pour mass (31) and is fixed on air permeable plate (32) on the pour mass (31), form air chamber (5) between described pour mass (31) and the air permeable plate (32), described air chamber (5) is in communication with the outside by breather pipe (4).
2. a kind of tundish according to claim 1 is characterized in that: described pour mass (31) is connected with air permeable plate (32) cast.
3. a kind of tundish according to claim 1 and 2 is characterized in that: described pour mass (31) is provided with one and is used for fixing the boss (311) that connects permanent layer (1).
4. a kind of tundish according to claim 3 is characterized in that: described boss (311) is arranged on the both sides of pour mass (31).
5. a kind of tundish according to claim 4 is characterized in that: described permanent layer (1) bottom is provided with and the suitable groove (11) of boss (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920118211U CN201376086Y (en) | 2009-04-17 | 2009-04-17 | Tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920118211U CN201376086Y (en) | 2009-04-17 | 2009-04-17 | Tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201376086Y true CN201376086Y (en) | 2010-01-06 |
Family
ID=41516181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920118211U Expired - Lifetime CN201376086Y (en) | 2009-04-17 | 2009-04-17 | Tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201376086Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602104B (en) * | 2009-04-17 | 2011-06-08 | 陈红良 | Tundish |
| CN108044090A (en) * | 2018-01-19 | 2018-05-18 | 山东钢铁集团日照有限公司 | A kind of method for constructing bottom of steel ladle |
-
2009
- 2009-04-17 CN CN200920118211U patent/CN201376086Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602104B (en) * | 2009-04-17 | 2011-06-08 | 陈红良 | Tundish |
| CN108044090A (en) * | 2018-01-19 | 2018-05-18 | 山东钢铁集团日照有限公司 | A kind of method for constructing bottom of steel ladle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100106 Effective date of abandoning: 20090417 |