CN202356615U - Double-current middle bag provided with turbulent flow inhibitor - Google Patents
Double-current middle bag provided with turbulent flow inhibitor Download PDFInfo
- Publication number
- CN202356615U CN202356615U CN2011205194768U CN201120519476U CN202356615U CN 202356615 U CN202356615 U CN 202356615U CN 2011205194768 U CN2011205194768 U CN 2011205194768U CN 201120519476 U CN201120519476 U CN 201120519476U CN 202356615 U CN202356615 U CN 202356615U
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- turbulent flow
- inclusion
- double
- tundish
- weir
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Abstract
The utility model relates to a double-current middle bag provided with a turbulent flow inhibitor, comprising a middle bag body, wherein the bag body is internally provided with the turbulent flow inhibitor; the bottom of the bag body is provided with two steel tapping holes, and the turbulent flow inhibitor is arranged between the two steel tapping holes; the turbulent flow inhibitor comprises two weir plates; the bottoms of the weir plates are connected with the bottom of the bag body; two ends of the weir plates are respectively connected with the inner side wall of the bag body; the height of each weir plate is lower than the height of the side wall of the bag body; and the turbulent flow inhibitor is formed by surrounding the two weir plates and the side wall of the bag body between the two weir plates. The double-current middle bag disclosed by the utility model has the advantages of simple structure, simplicity in machining and low cost.
Description
Technical field
The utility model relates to Ferrous Metallurgy continuous casting field, relates in particular to a kind of double-current tundish, particularly has the double-current tundish of turbulent flow TVS.
Background technology
The continuous casting tundish is a transitional container between ladle and the crystallizer.Its major function is: storage, shunting molten steel, reduce ferrostatic pressure and remove field trash.In casting process, from the flow feature of the beam of ladle be: 1. speed is high, and kinetic energy is big, and it is serious that washing away of lining done in the centre job contract, is prone to cause secondary pollution; 2. the ladle beam is equivalent to " jet pump ", is involved in molten steel to surrounding air if seal bad meeting, and breaking becomes the very little bubble of diameter, forms additional circulation, increases the weight of the secondary oxidation of molten steel; 3. the ladle beam gets into 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.
The turbulent flow TVS is a kind of flow control device that reduces the tubulence energy in tundish beam district.It returns self after not only can making molten steel inject tundish by long nozzle again, thereby reduces the tubulence energy in tundish beam district, suppresses surface volume slag, and can also prolong the time of staying of molten steel in tundish, helps floating foreign.In addition, the turbulent flow TVS weakens the ladle beam in addition to the washing away of tundish impact zone cylinder-packing refractory material, and improves the tundish effect in service life.
U.S. LTV steel company is rounded " goldfish jar " formula of ladle beam impact zone installation cavity shape in the tundish bottom; Profile is the square structure device;, the steel that makes a sheer drop from long nozzle can turn back when flowing into " goldfish jar " upwards; Steel stream bumps against with the steel stream that newly gets off, and the steel stream energy weakens through circulation and reverse circulation repeatedly, thereby reduces the impulsive force that steel flows.
Vesuius company is that double-current tundish has designed a oval turbulent flow TVS, and this turbulent flow TVS is suitable for reading narrow than the bottom, and the bottom is to suitable for reading curved, and the molten steel of ladle returns after flowing into the turbulent flow TVS again, to reduce the beam impulsive force from ladle.
More than the weak point of invention is that its complex structure, machine-shaping difficulty are big, and cost of manufacture is high.In addition, because the steel that makes progress stream concentrates on zone, the mouth of a river, cause tundish molten steel face near ladle beam impact zone, to form " eyelet ", tundish covering flux can not cover molten steel, causes the secondary oxidation of molten steel.
The utility model content
The utility model technical problem to be solved is: to the deficiency that exists in the above-mentioned prior art, provide a kind of simple in structure, processing is easy, have the double-current tundish of turbulent flow TVS cheaply.
The utility model is to solve the problems of the technologies described above the technical scheme that is proposed to be:
A kind of double-current tundish with turbulent flow TVS, it comprises the tundish inclusion, is provided with the turbulent flow TVS in the inclusion, and the bottom of inclusion has two tapping holes, and the turbulent flow TVS is arranged between two tapping holes; Said turbulent flow TVS comprises two weir plates; The bottom of said weir plate is connected with the inclusion bottom; The two ends of two weir plates are connected with the madial wall of inclusion respectively, and the height of weir plate is lower than the height of inclusion sidewall, and the inclusion sidewall between two weir plates and two weir plates surrounds the turbulent flow TVS.
In the such scheme, the bottom of said weir plate and inclusion bottom vertical, the top of weir plate is to turbulent flow TVS tilt.
In the such scheme, the bottom in the turbulent flow TVS is provided with shock plate.
The operation principle of the utility model is:
Turbulent flow suppresses the sidewall of weir plate and tundish inclusion and forms a hemi-closure space; Form steel stream impulsive force buffering area, after the ladle beam gets into buffering area, run into the bottom and inwall of turbulent flow TVS (device) after; The kinetic energy of steel stream is decayed gradually, thereby reduces kinetic energy and the speed that molten steel makes progress.
The advantage of the utility model is:
1, simple in structure, processing easy, low-cost.
2, a shock plate is laid to prevent that steel stream is to the bag impact at the end in tundish inclusion bottom.
3, the bottom of weir plate and inclusion bottom vertical, the top of weir plate is to turbulent flow TVS tilt.Compare with other similar turbulent flow restraining device, the steel stream that returns upwards disperses relatively, and the upwards steel stream impulsive force at place, the mouth of a river obviously descends, and can effectively prevent the formation of tundish liquid level " eyelet ", reduces the secondary oxidation and volume slag of molten steel.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the vertical view of the utility model embodiment.
Fig. 3 is the A-A cutaway view of Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.
Like Fig. 1,2, shown in 3, the utlity model has the double-current tundish embodiment of turbulent flow TVS, it comprises tundish inclusion 1, is provided with the turbulent flow TVS in the inclusion 1, and the bottom of inclusion has two tapping holes 4, and the turbulent flow TVS is arranged between two tapping holes 4; Said turbulent flow TVS comprises two weir plates 2; The bottom of said weir plate 2 is connected with the inclusion bottom; The two ends of two weir plates 2 are connected with the madial wall of inclusion 1 respectively, and the height of weir plate 2 is lower than the height of inclusion sidewall, and the inclusion sidewall between two weir plates 2 and two weir plates surrounds the turbulent flow TVS.Bottom in the turbulent flow TVS is provided with shock plate 3.Said weir plate 2 is processed by anti-erosion of refractory with shock plate 3.The Lower Half of said weir plate and inclusion bottom vertical, the first half of weir plate is to 30 ° of turbulent flow TVS tilt.
During use, the turbulent flow TVS be arranged on the molten steel mouth of a river 5 under.After weir plate 2 installs, toast drying for standby with the tundish working lining; Other continuous casting operation is identical with routine operation.
Claims (3)
1. double-current tundish with turbulent flow TVS, it comprises the tundish inclusion, is provided with the turbulent flow TVS in the inclusion, the bottom of inclusion has two tapping holes, it is characterized in that: the turbulent flow TVS is arranged between two tapping holes; Said turbulent flow TVS comprises two weir plates; The bottom of said weir plate is connected with the inclusion bottom; The two ends of said weir plate are connected with the madial wall of inclusion respectively, and the height of weir plate is lower than the height of inclusion sidewall, and the inclusion sidewall between two weir plates and two weir plates surrounds the turbulent flow TVS.
2. double-current tundish as claimed in claim 1 is characterized in that: the bottom of said weir plate and inclusion bottom vertical, the top of weir plate is to turbulent flow TVS tilt.
3. according to claim 1 or claim 2 double-current tundish, it is characterized in that: the bottom in the turbulent flow TVS is provided with shock plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205194768U CN202356615U (en) | 2011-12-13 | 2011-12-13 | Double-current middle bag provided with turbulent flow inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205194768U CN202356615U (en) | 2011-12-13 | 2011-12-13 | Double-current middle bag provided with turbulent flow inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202356615U true CN202356615U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205194768U Expired - Fee Related CN202356615U (en) | 2011-12-13 | 2011-12-13 | Double-current middle bag provided with turbulent flow inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202356615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240406A (en) * | 2013-04-28 | 2013-08-14 | 首钢总公司 | Continuous casting tundish and continuous casting tundish casting control method |
-
2011
- 2011-12-13 CN CN2011205194768U patent/CN202356615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240406A (en) * | 2013-04-28 | 2013-08-14 | 首钢总公司 | Continuous casting tundish and continuous casting tundish casting control method |
| CN103240406B (en) * | 2013-04-28 | 2015-05-27 | 首钢总公司 | Continuous casting tundish and continuous casting tundish casting control method |
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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: 20120801 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |