CN202377526U - Tundish stopper with ultrasonic stirring function - Google Patents
Tundish stopper with ultrasonic stirring function Download PDFInfo
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- CN202377526U CN202377526U CN201120572725XU CN201120572725U CN202377526U CN 202377526 U CN202377526 U CN 202377526U CN 201120572725X U CN201120572725X U CN 201120572725XU CN 201120572725 U CN201120572725 U CN 201120572725U CN 202377526 U CN202377526 U CN 202377526U
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- argon
- stopper
- ultrasonic
- tundish
- molten steel
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Abstract
The utility model discloses a tundish stopper with an ultrasonic stirring function, which belongs to the technical field of tundishes for metallurgical continuous casting and comprises a stopper body. The stopper body is a hollow structure, an argon channel is arranged inside the stopper body, an argon blow hole is disposed at the bottom end of the stopper body and communicated with the argon channel, the top of the argon channel is communicated with one end of an argon blow pipe, an argon source is connected to the other end of the argon blow pipe, an ultrasonic transducer is fixedly connected to the top of the argon channel and connected with a waveguide rod, the waveguide rod is positioned in the argon channel, and the ultrasonic transducer is connected with an ultrasonic power source by a lead. The ultrasonic transducer guides ultrasonic waves into molten steel via the waveguide rod, crystal grains can be refined, the purity of the molten steel is improved, gas in the molten steel can be removed by means of feeding argon into the molten steel, the molten steel is further purified, and the purpose of improving the quality of steel is achieved.
Description
Technical field
The utility model relates to the Tundish Technology field that metallurgical continuous casting is used, and more particularly, relates to a kind of tundish stopper with ultrasonic stirring function.
Background technology
Along with the raising day by day that steel quality is required, developed various ladle refining technology, its purpose improves the molten steel cleanliness factor exactly.Tundish is a refractory material container that connects between ladle and crystallizer, and through the molten steel of external refining, its cleanliness factor is higher, but after watering tundish, probably pollutes again.Therefore, can not see it is a simple molten steel transition container to tundish, and should see it is a continuous metallurgical reaction to it that the measure of adopting in the ladle refining can be transplanted to tundish, with further cleaning molten steel.
(CENG JIANHUA, gift are heavily ultra, Chen Tianming etc., tundish stopper Argon The Application of Technology, steel vanadium titanium in the paper of delivering " tundish stopper Argon The Application of Technology " for people such as CENG JIANHUA, gift are heavily ultra, Chen Tianming; 1999 the 20th the 2nd phases of volume), disclose a kind of stopper Argon technology, adopted single-orifice type Argon stopper to prevent nozzle blocking; Bag stopper Argon technology is prevented nozzle blocking, and industrial experiment shows that this technology can not only prevent nozzle blocking effectively; Increase numbers of continuous casting heats of low carbon; But also can improve steel, but this tundish stopper stirs in the vibrations of molten steel, and then raising molten steel degree of purity aspect is still waiting further raising.
Chinese patent ZL 201120035076.X; Granted publication day is on September 28th, 2011, and invention and created name is: a kind of billet caster tundish stopper and connector, a kind of billet caster tundish stopper and the connector of this application case; It comprises stopper and connector; Its connector comprises embedded nut, leading screw, attaching nut, and embedded nut is fixed on the central axis in the Stopper Body on stopper top, and leading screw and embedded nut are complementary; The leading screw argon blowing hole is arranged on the leading screw central axis; Have the stopper argon blowing hole to be connected with the leading screw argon blowing hole on the central axis in Stopper Body, the stopper argon blowing hole is at stopper head opening, and the inlet end of leading screw argon blowing hole is connected with the argon gas generating means.Tundish stopper in this application case has designed the stopper argon blowing hole equally; Adopt argon blowing hole to carry out the Argon operation, still, this tundish stopper lacks ultrasonic vibration apparatus; In removing steel, be mingled with, crystal grain thinning, improve aspect such as slab quality, also need further to improve.
At present, existing tundish stopper mainly is divided into two big types: a kind of is single stopper function, in tundish, mainly plays the stream effect of controlling, and prolongs the molten steel time of staying, promotes field trash growth come-up, but aspects such as removal is mingled with, the degassing exist not enough; Another kind is in the tundish stopper, to add the argon gas pipeline; In tundish, feed argon gas, logical argon can prevent nozzle blocking effectively in the tundish, increases to connect and waters way; The argon gas that is blown into has improved the float mechanical condition of steel inclusion with [O], [N], [H] etc.; Promoted the come-up of field trash, reduced the content of the field trash in the strand, reached the purpose that promotes inclusion floating, the degassing, improves steel quality with [O], [N], [H] etc. with [O], [N], [H] etc.And Its Require for Steel Material of new generation has three characteristics: the one, and ultra-fine crystallization reaches the micron order tissue; The 2nd, noble and unsullied purification reaches economic cleanliness factor; The 3rd, high-homogenized, eliminate gross segregation (center segregation).Tundish stopper of the prior art can not be realized the purpose of crystal grain thinning, has satisfied not the quality control requirement of ferrous materials of new generation.Equally, small inclusion floating is unusual difficulty in the molten steel, can only work as them and gather together that just can making floats is more prone to.
Ultrasonic wave is a kind of mechanical wave; In the liquid medium communication process, can produce periodic stress and sound pressure variations; To a series of non-linear process in liquid medium, occur, when ultrasonic wave is propagated, the gas cavity occur on liquid internal or the liquid-solid interface in liquid; And the nuclear of the micro-bubble in the liquid is activated under the sound wave effect, shows as a series of processes (that is: ultrasonic cavitation) such as vibration, growth, contraction and even collapse of nuclei of bubbles.
Summary of the invention
The technical problem that utility model will solve
The utility model is to have function singleness to tundish stopper of the prior art, in removing steel, is mingled with, the deficiency aspect the crystal grain thinning, raising molten steel quality, and a kind of tundish stopper with ultrasonic stirring function is provided.
Technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of tundish stopper of the utility model with ultrasonic stirring function; Comprise the stopper body, described stopper body is a hollow structure, and its inside is provided with ar gas passage; Stopper body bottom offers argon blowing hole; This argon blowing hole communicates with ar gas passage, and the top of ar gas passage is connected with an end of Argon pipe, and the other end of Argon pipe connects argon gas source; The top of described ar gas passage is fixed with ultrasonic transducer, and this ultrasonic transducer links to each other with the guided wave bar, and the guided wave bar is arranged in ar gas passage, and ultrasonic transducer is connected with ultrasonic power through lead.
Further, Open Side Down for described argon blowing hole, and perhaps, argon blowing hole is a lateral aperture.
Further, the argon blowing hole of said side is evenly distributed on the circumference of stopper body bottom has 2 ~ 4.
Further, the axis direction of the axis direction of described guided wave bar and stopper body is parallel to each other.
The principle of the utility model:
The utility model is that a guided wave bar is installed in the stopper body of hollow, and the guided wave bar links to each other with ultrasonic transducer, and ultrasonic transducer links to each other with ultrasonic power through lead; When the tundish operate as normal, open ultrasonic power, the adjustment ultrasonic power output; Thereby electric energy is converted into high-frequency electrical energy; And the input ultrasonic transducer, produce a short arc, high-frequency ultrasonic vibration ripple, be input to the tundish molten steel through the guided wave bar.After ultrasonic wave was introduced molten steel, the solid-liquid contact-making surface produced instantaneous cavity on the surface of solid inclusion composition granule after receiving the intense radiation effect of the shock wave that the ultrasonic cavitation effect produces; These cavities will be compressed again in mutually in the sound wave malleation that comes one after the other, and consequently some cavitation bubbles will get into the persistent oscillation stage, and the other cavitation bubble will collapse fully; When these small bubbles break; Produce strong shock wave, the cavitation effect of bubble can produce the injection of a fluid in molten steel, and this jet flow forms acoustic streaming in whole fluid; The effect of this acoustic streaming makes ultrasonic wave play the effect of stirring molten steel just, has promoted the eliminating of field trash.Utilize the cavitation effect in this process, can reach to purify and organize, crystal grain thinning makes purposes such as even tissueization.Ultrasonic vibration is solidified effective degree of supercooling that can improve molten metal, reduces critical nucleus radius, thereby increases nucleation rate, crystal grain thinning.
Beneficial effect
The technical scheme that adopts the utility model to provide is compared with existing known technology, has following beneficial effect:
(1) a kind of tundish stopper with ultrasonic stirring function of the utility model by the ultrasonic transducer output ultrasonic wave, is introduced ultrasonic wave through the guided wave bar molten steel of tundish; Can further remove in the steel and be mingled with, crystal grain thinning improves slab quality; Reduce Hot Charging of Continuous Casting Slab intractability and intensity; And then cut down the consumption of energy, help energy-saving and emission-reduction, reduce production costs;
(2) a kind of tundish stopper with ultrasonic stirring function of the utility model is provided with the guided wave bar in ar gas passage, and the argon gas of feeding can be protected the guided wave bar;
(3) a kind of tundish stopper with ultrasonic stirring function of the utility model is provided with argon blowing system, when argon blowing hole when Open Side Down, can effectively prevent nozzle blocking, realizes sequence casting; When argon blowing hole is lateral aperture, help inclusion floating, reduce the field trash in the strand, purify hot metal, simultaneously, Argon can be stablized the bag flow field of tundish, improves slab quality.
Description of drawings
Fig. 1 is the argon blowing hole tundish stopper structural representation that Open Side Down in the utility model;
Fig. 2 is the tundish stopper structural representation of lateral aperture for argon blowing hole in the utility model.
Label declaration in the sketch map:
The 1-argon gas source; 2-Argon pipe; The 3-lead; The 4-ultrasonic power; The 5-ultrasonic transducer; 6-guided wave bar; The 7-ar gas passage; The 8-argon blowing hole; 9-stopper body.
The specific embodiment
For further understanding the content of the utility model, the utility model is described in detail in conjunction with accompanying drawing and embodiment.
Embodiment 1
A kind of tundish stopper with ultrasonic stirring function of present embodiment comprises stopper body 9, and stopper body 9 is a hollow structure; Its inside is provided with ar gas passage 7; Stopper body 9 bottoms offer argon blowing hole 8, and Open Side Down for this argon blowing hole 8 (structural representation of embodiment 1 is as shown in Figure 1), and argon blowing hole 8 communicates with ar gas passage 7; The top of ar gas passage 7 is connected with an end of Argon pipe 2, and the other end of Argon pipe 2 connects argon gas source 1; The top of ar gas passage 7 is fixed with ultrasonic transducer 5; This ultrasonic transducer 5 links to each other with guided wave bar 6; Guided wave bar 6 is arranged in ar gas passage 7, and the axis direction of the axis direction of guided wave bar 6 and stopper body 9 is parallel to each other, and ultrasonic transducer 5 is connected with ultrasonic power 4 through lead 3.The material of the guided wave bar 6 in the present embodiment is almag or titanium alloy, and the length of guided wave bar 6 is the integral multiple of the ultrasonic wave wavelength of employing or the integral multiple of half-wavelength.The argon blowing system of present embodiment can effectively prevent nozzle blocking, realizes sequence casting.
The basic structure of present embodiment is with embodiment 1, and difference is: argon blowing hole 8 is lateral aperture (structural representation of embodiment 2 is as shown in Figure 2), the argon blowing hole 8 of side on the circumference of stopper body 9 bottoms evenly distributed 2; A kind of tundish stopper with ultrasonic stirring function of present embodiment helps inclusion floating, reduces the field trash in the strand; Purify hot metal; Simultaneously, Argon can be stablized the bag flow field of tundish, improves slab quality.
The basic structure of present embodiment is with embodiment 2, and difference is: argon blowing hole 8 is lateral aperture, the argon blowing hole 8 of side on the circumference of stopper body 9 bottoms evenly distributed 4.
The basic structure of present embodiment is with embodiment 2, and difference is: the argon blowing hole 8 of side on the circumference of stopper body 9 bottoms evenly distributed 3.
A kind of tundish stopper with ultrasonic stirring function of embodiment 1 ~ 4 in use, is connected ultrasonic power 4; Ultrasonic transducer 5 imports ultrasonic wave in the molten steel through guided wave bar 6, can promote inclusion floating, improves the degree of purity of molten steel; Can reach and purify tissue, crystal grain thinning, make effect such as even tissueization, after the argon gas of feeding arrives molten steel, can play and remove gas in the molten steel; Further cleaning molten steel reaches the effect that improves steel quality.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of embodiment of the utility model, and practical structure is not limited thereto.So,, under the situation that does not break away from the utility model creation aim,, all should belong to the protection domain of the utility model without creationary frame mode similar and the embodiment of designing with this technical scheme if those of ordinary skill in the art is enlightened by it.
Claims (5)
1. tundish stopper with ultrasonic stirring function; Comprise stopper body (9), it is characterized in that: described stopper body (9) is a hollow structure, and its inside is provided with ar gas passage (7); Stopper body (9) bottom offers argon blowing hole (8); This argon blowing hole (8) communicates with ar gas passage (7), and the top of ar gas passage (7) is connected with an end of Argon pipe (2), and the other end of Argon pipe (2) connects argon gas source (1); The top of described ar gas passage (7) is fixed with ultrasonic transducer (5); This ultrasonic transducer (5) links to each other with guided wave bar (6); Guided wave bar (6) is arranged in ar gas passage (7), and ultrasonic transducer (5) is connected with ultrasonic power (4) through lead (3).
2. a kind of tundish stopper with ultrasonic stirring function according to claim 1, it is characterized in that: Open Side Down for described argon blowing hole (8).
3. a kind of tundish stopper with ultrasonic stirring function according to claim 1 is characterized in that: described argon blowing hole (8) is a lateral aperture.
4. a kind of tundish stopper with ultrasonic stirring function according to claim 3 is characterized in that: the argon blowing hole of said side (8) is evenly distributed on the circumference of stopper body (9) bottom to have 2 ~ 4.
5. a kind of tundish stopper with ultrasonic stirring function according to claim 4 is characterized in that: the axis direction of the axis direction of described guided wave bar (6) and stopper body (9) is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120572725XU CN202377526U (en) | 2011-12-31 | 2011-12-31 | Tundish stopper with ultrasonic stirring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120572725XU CN202377526U (en) | 2011-12-31 | 2011-12-31 | Tundish stopper with ultrasonic stirring function |
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| CN202377526U true CN202377526U (en) | 2012-08-15 |
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| CN201120572725XU Expired - Fee Related CN202377526U (en) | 2011-12-31 | 2011-12-31 | Tundish stopper with ultrasonic stirring function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008636A (en) * | 2013-01-21 | 2013-04-03 | 河北联合大学 | Gun insertion type stopper rod device and method using same for absorbing inclusions at gate |
| CN103252459A (en) * | 2013-06-07 | 2013-08-21 | 王海军 | Method of improving molten steel cleanness and refining crystal grains with ultrasonic waves |
| CN107747835A (en) * | 2017-11-21 | 2018-03-02 | 江苏高菱蓄能科技有限公司 | One kind supercooling remover |
| CN113134613A (en) * | 2021-04-22 | 2021-07-20 | 鞍钢股份有限公司 | Gas atomization preparation device and method for superfine metal powder |
| CN116604009A (en) * | 2023-07-17 | 2023-08-18 | 联峰钢铁（张家港）有限公司 | Device and method for rapidly opening flow after flow blocking of tundish |
-
2011
- 2011-12-31 CN CN201120572725XU patent/CN202377526U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008636A (en) * | 2013-01-21 | 2013-04-03 | 河北联合大学 | Gun insertion type stopper rod device and method using same for absorbing inclusions at gate |
| CN103008636B (en) * | 2013-01-21 | 2015-01-07 | 河北联合大学 | Gun insertion type stopper rod device and method using same for absorbing inclusions at gate |
| CN103252459A (en) * | 2013-06-07 | 2013-08-21 | 王海军 | Method of improving molten steel cleanness and refining crystal grains with ultrasonic waves |
| CN103252459B (en) * | 2013-06-07 | 2015-10-28 | 马鞍山华盛冶金科技发展有限公司 | A kind of method being improved Cleanliness of Molten Steel and crystal grain thinning by ultrasonic wave |
| CN105057606A (en) * | 2013-06-07 | 2015-11-18 | 王海军 | Method for improving molten steel cleanliness and refining grains |
| CN107747835A (en) * | 2017-11-21 | 2018-03-02 | 江苏高菱蓄能科技有限公司 | One kind supercooling remover |
| CN113134613A (en) * | 2021-04-22 | 2021-07-20 | 鞍钢股份有限公司 | Gas atomization preparation device and method for superfine metal powder |
| CN113134613B (en) * | 2021-04-22 | 2023-01-17 | 鞍钢股份有限公司 | Gas atomization preparation device and method for superfine metal powder |
| CN116604009A (en) * | 2023-07-17 | 2023-08-18 | 联峰钢铁（张家港）有限公司 | Device and method for rapidly opening flow after flow blocking of tundish |
| CN116604009B (en) * | 2023-07-17 | 2023-10-20 | 联峰钢铁（张家港）有限公司 | Device and method for rapidly opening flow after flow blocking of tundish |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20120815 Termination date: 20131231 |