CN201735749U - Continuous casting tundish centering-free turbulent suppressor - Google Patents
Continuous casting tundish centering-free turbulent suppressor Download PDFInfo
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- CN201735749U CN201735749U CN2010202771896U CN201020277189U CN201735749U CN 201735749 U CN201735749 U CN 201735749U CN 2010202771896 U CN2010202771896 U CN 2010202771896U CN 201020277189 U CN201020277189 U CN 201020277189U CN 201735749 U CN201735749 U CN 201735749U
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Abstract
The utility model discloses a continuous casting tundish centering-free turbulent suppressor, which comprises a suppressor cavity which is arranged on the bottom of the continuous casting tundish and under a long nozzle, wherein the external wall of the suppressor cavity is in an inversed circular table shaped structure which is big on the upper part and small on the lower part, the inner cavity of the suppressor cavity consists of a funnel-shaped collecting opening on the upper part and a drum-shaped binding cylinder on the lower part, and the bottom of the drum-shaped binding cylinder is in a wave-shaped structure used for buffering the kinetic energy impact. Further, the lower end of the external wall of the suppressor cavity is provided with a wedge-shaped lug structure. The utility model has good turbulence-suppressing effect and long service life, is free from accurate positioning and is convenient to operate by the installation personnel.
Description
Technical field
The utility model relates to the appurtenances in the continuous casting tundish, refers to that particularly a kind of continuous casting tundish exempts from centering turbulent flow TVS.
Background technology
The continuous casting tundish is a transitional container between ladle and the crystallizer, and its major function is storage, shunting molten steel, reduces ferrostatic pressure and removes field trash.In casting process, have following characteristics from the beam of ladle: one, speed height, kinetic energy are big, and it is serious that washing away of lining done in the centre job contract, easily causes secondary pollution; Its two, the ladle beam is equivalent to " jet pump ", if seal bad meeting surrounding air is involved in molten steel, breaking becomes the very little bubble of diameter, forms additional circulation, increases the weight of the secondary oxidation of molten steel; Its three, the ladle beam enters the impact zone of tundish, is the zone of a high turbulence, causes tundish molten steel face to form " eyelet ", causes the secondary oxidation of molten steel and middle cinder inclusion to be involved in.
In order to address the above problem, U.S. LTV steel company has designed the rounded goldfish jar structure of a kind of inner chamber at tundish bottom beam impact zone, shell is the anti-turbulator of square structure.Should make by erosion resistant refractory material by anti-turbulator, when flowing to inner chamber into this goldfish jar formula, the steel that makes a sheer drop from the tundish long nozzle can turn back upwards, the steel of turning back stream and the steel stream that newly gets off bump against, the energy that makes steel stream is by circulation and reverse circulation weaken repeatedly, thereby reduce the impulsive force of steel stream, the result who uses with weir shows: this anti-turbulator is greatly improved to middle Baogang liquid flow regime, make the crystallizer molten steel total oxygen content when stable casting, descend 20%, when changing ladle, descended 30%.And because the minimizing that is mingled with in the molten steel can make tundish long nozzle clogging reduce about 57%.In addition, a kind of intracavity bottom of Vesuius company design and sidewall are the anti-turbulator of wavy octagonal uncovered peviform,, also can obviously subdue kinetic energy, thereby reduce the impulsive force of beam in this structure from the beam of ladle.
Though the anti-turbulator of above benzvalene form can solve the bigger defective of bringing of molten steel kinetic energy, still there is following weak point in it: one, the bottom centre of the anti-turbulator of benzvalene form is not easy and big bag long nozzle centering when mounted, causes its anti-turbulence effects relatively poor.Its two, the bonding strength of anti-turbulator of benzvalene form and bakie working lining is relatively poor, it is floating easily to come off under the molten steel buoyancy function, causes significantly shorten its service life.
Summary of the invention
The purpose of this utility model be exactly to provide that a kind of anti-turbulence effects is good, long working life and the continuous casting tundish that need not precisely to install exempt from centering turbulent flow TVS.
For achieving the above object, the designed continuous casting tundish of the utility model is exempted from centering turbulent flow TVS, comprise the TVS cavity that is arranged on continuous casting tundish bottom, is positioned at the long nozzle below, the reverse frustoconic structure that the outer wall of described TVS cavity is big up and small down, the circle drum closing in cylinder that the inner chamber of described TVS cavity is collected mouth and bottom by the infundibulate on top is formed.The bottom undulate structure of described circle drum closing in cylinder is used to cushion the kinetic energy impact of molten steel beam.
Operation principle of the present utility model is such: after high-speed steel flows to tundish, collect TVS cavity upper funnel shape under the guide functions of mouth, to center flow, converge and enter in the TVS cavity bottom circle drum closing in cylinder, even steel stream has inclination slightly like this, can not influence the anti-turbulence effects of TVS cavity yet.Simultaneously, steel stream is subjected to the influence of bottom wavy shaped configuration, its kinetic energy is refracted buffering earlier, after flow velocity significantly reduces, upwards flow out, collect the collision that crosses of Kou Chu and the steel stream that newly enters in infundibulate again along the arc inner wall of circle drum closing in cylinder, its kinetic energy is further reduced, last steel stream overflows from TVS cavity upper edge with extremely low speed, thereby can effectively prevent near the formation of long nozzle " eyelet ", reduces molten steel secondary oxidation and volume slag.
Further, the outer wall lower end of described TVS cavity is provided with the wedge-shaped bead structure.This wedge-shaped bead structure is imbedded in the working lining of tundish bottom, can be strengthened the effect that is connected and fixed of TVS cavity and tundish, floating the coming off of avoiding molten steel buoyancy to cause, the service life of prolongation TVS cavity.
Advantage of the present utility model is: designed TVS cavity need not and long nozzle centering, both can make things convenient for the flexible fitting operation of field worker, has splendid anti-turbulence effects again.And its wedge-shaped bead structure and tundish bottom working lining organically are connected as a single entity, and make effectively to have prolonged its working life by TVS cavity difficult drop-off.Simultaneously, it is convenient that it is simple in structure, with low cost, steel is turned in casting after finishing.
Description of drawings
Accompanying drawing is the main sectional structure schematic diagram that a kind of continuous casting tundish is exempted from centering turbulent flow TVS.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Continuous casting tundish shown in the figure is exempted from centering turbulent flow TVS, comprise the TVS cavity 4 that is arranged on continuous casting tundish 3 bottoms, is positioned at long nozzle 1 below, TVS cavity 4 is for adopting the one-time formed overall structure of refractory material, its inner surface adheres to working lining 2, working lining 2 is also made by refractory material, can resist the impact of high-temperature molten steel and wash away.The reverse frustoconic structure that the outer wall of TVS cavity 4 is big up and small down, its outer wall lower end is provided with wedge-shaped bead structure 4D.The circle drum closing in cylinder 4B that the inner chamber of TVS cavity 4 is collected mouthful 4A and bottom by the infundibulate on top forms the bottom undulate structure 4C of circle drum closing in cylinder 4B.
The utility model at first placed it in the circular trough that stays in advance tundish 3 bottom long nozzles 1 below when installing, and built working lining 2 again by laying bricks or stones, and 4D imbeds in the working lining 2 with the wedge-shaped bead structure, came off in order to avoid molten steel come-up takes place when it is flooded.After the utility model mounting arrangements is good, toast drying for standby with working lining 2, its operation is identical with mode of operation of the prior art.For the anti-turbulator of peviform of anti-turbulator of goldfish jar formula and the uncovered band wave of octagon, the utility model need not centering, anti-good, the long service life of turbulence effects.
Claims (3)
1. a continuous casting tundish is exempted from centering turbulent flow TVS, comprise the TVS cavity (4) that is arranged on continuous casting tundish (3) bottom, is positioned at long nozzle (1) below, it is characterized in that: the reverse frustoconic structure that the outer wall of described TVS cavity (4) is big up and small down, the circle drum closing in cylinder (4B) that the inner chamber of described TVS cavity (4) is collected mouthful (4A) and bottom by the infundibulate on top is formed the bottom undulate structure (4C) of described circle drum closing in cylinder (4B).
2. continuous casting tundish according to claim 1 is exempted from centering turbulent flow TVS, it is characterized in that: the outer wall lower end of described TVS cavity (4) is provided with wedge-shaped bead structure (4D).
3. continuous casting tundish according to claim 1 and 2 is exempted from centering turbulent flow TVS, it is characterized in that: described TVS cavity (4) is for adopting the one-time formed overall structure of refractory material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202771896U CN201735749U (en) | 2010-07-30 | 2010-07-30 | Continuous casting tundish centering-free turbulent suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202771896U CN201735749U (en) | 2010-07-30 | 2010-07-30 | Continuous casting tundish centering-free turbulent suppressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201735749U true CN201735749U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202771896U Expired - Fee Related CN201735749U (en) | 2010-07-30 | 2010-07-30 | Continuous casting tundish centering-free turbulent suppressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201735749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110653366A (en) * | 2019-11-18 | 2020-01-07 | 武汉科技大学 | Continuous casting tundish belt buffering ball cyclone type turbulence suppressor |
| CN110834085A (en) * | 2019-12-18 | 2020-02-25 | 新疆八一钢铁股份有限公司 | Tundish turbulence suppressor for suppressing short-circuit flow |
| CN112517897A (en) * | 2020-11-19 | 2021-03-19 | 东北大学 | Split type tundish turbulence controller |
-
2010
- 2010-07-30 CN CN2010202771896U patent/CN201735749U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110653366A (en) * | 2019-11-18 | 2020-01-07 | 武汉科技大学 | Continuous casting tundish belt buffering ball cyclone type turbulence suppressor |
| CN110653366B (en) * | 2019-11-18 | 2024-05-28 | 武汉科技大学 | Spiral-flow type turbulence inhibitor for continuous casting middle belting buffer ball |
| CN110834085A (en) * | 2019-12-18 | 2020-02-25 | 新疆八一钢铁股份有限公司 | Tundish turbulence suppressor for suppressing short-circuit flow |
| CN112517897A (en) * | 2020-11-19 | 2021-03-19 | 东北大学 | Split type tundish turbulence controller |
| CN112517897B (en) * | 2020-11-19 | 2021-08-31 | 东北大学 | Split type tundish turbulence controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20160730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |