CN104325101B - A kind of continuous casting production turbulator - Google Patents
A kind of continuous casting production turbulator Download PDFInfo
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- CN104325101B CN104325101B CN201410610522.3A CN201410610522A CN104325101B CN 104325101 B CN104325101 B CN 104325101B CN 201410610522 A CN201410610522 A CN 201410610522A CN 104325101 B CN104325101 B CN 104325101B
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- turbulator
- paraboloid
- revolution
- cavity
- span
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000009827 uniform distribution Methods 0.000 claims abstract description 4
- 238000007667 floating Methods 0.000 abstract description 8
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 27
- 239000010959 steel Substances 0.000 description 27
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001869 rapid Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/106—Shielding the molten jet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to a kind of continuous casting production turbulator, the external structure of described turbulator is eight prisms (1), and its eight cylinders are intervally distributed with three boss (2)；The inside of described turbulator is cavity, the medial surface of described cavity is the paraboloid of revolution (3), eight pod apertures (4) it are uniform-distribution with on the medial wall of described cavity, the bottom of described cavity is bottom centre's paraboloid of revolution (5), and the outside along the described bottom centre paraboloid of revolution (5) is uniformly distributed eight little parabolas (6)；The turbulator of the present invention has enhancing metallurgical function, prevents the floating and advantage of length in service life.
Description
Technical field
The present invention relates to a kind of Ferrous Metallurgy equipment, particularly relate to a kind of continuous casting production turbulator.
Background technology
Continuous casting production is the transition apparatus in the middle of ladle and crystallizer, is last ring before molten steel enters crystallizer,
The quality ensureing continuous casting billet is had great importance." tundish metallurgy " technology is from phase early 1980s
Since being suggested, along with the development of continuous casting technology, its effect is more and more noted, has developed into one
The outer metallurgical technology of comprehensive stove that door is special." tundish metallurgy " technology, by improving MOLTEN STEEL FLOW condition, reduces short
Road flowing and the generation in dead band, improve flow direction and extend path, and the floating for inclusion content in melting steel provides favourable
Condition, thus ensure the degree of purity of pour steel；Can effectively prevent the secondary pollution of molten steel in casting process,
Alleviate molten steel to refractory corrosion, being involved in and the harm of unstable oxide in slag of minimizing slag.In continuous casting
Between bag in install flow control device be the effective ways realizing above-mentioned metallurgical function, by install suitable construction flow control fill
Put, can play stable and optimize the flow regime of molten steel in tundish, when increasing molten steel stop in tundish
Between, promote in molten steel that large inclusions floats and separate, uniform liquid steel temperature and composition, prevent secondary oxidation of steel
The metallurgical effects such as pollution.
Flow control device generally uses turbulator at present, and in order to dissolve the kinetic energy that molten steel flows into, turbulator inner chamber is general
It is designed as lower big little shape, increases a big dead slot in bottom and limit molten steel turbulent flow；This design is necessarily
The rolling turbulence of beam district molten steel can be weakened in degree, but in stable MOLTEN STEEL FLOW and in terms of preventing from opening and watering splash,
It need to improve；This design makes turbulator wall thickness differ, simultaneously because diverse location scouring intensity differs,
Turbulator different parts is caused to differ service life；And use initial stage and later stage at tundish, thermal stress and washing away
It is floating and accidents caused that breakage easily causes turbulator.
Summary of the invention
It is an object of the invention to solve the above-mentioned technical problem that existing continuous casting production turbulator exists, thus provide
A kind of strengthen metallurgical function, prevent continuous casting production turbulator that is floating and that increase the service life.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of continuous casting production turbulator, the external structure of described turbulator is eight prisms 1, on its eight cylinders between
Every being dispersed with three boss 2；The inside of described turbulator is cavity, and the medial surface of described cavity is the paraboloid of revolution 3,
Being uniform-distribution with eight pod apertures 4 on the medial wall of described cavity, the bottom of described cavity is bottom centre's rotary parabolic
Face 5, the outside along the described bottom centre paraboloid of revolution 5 is uniformly distributed eight little parabolas 6.
In technique scheme, the interval mode of described three boss 2 is: at eight posts of described eight prisms 1
An arbitrarily selected cylinder in face, arranges first boss, along clockwise direction two, interval on this cylinder
Cylinder arranges second boss, then is spaced a cylinder and arranges the 3rd boss.
In technique scheme, the parabolical summit of the described paraboloid of revolution 3 is positioned on the bottom surface of described cavity,
Parabolic equation is x=ky2(y >=0), wherein k span is 0.05～0.1.
In technique scheme, eight described pod apertures 4 just eight prisms to described eight prisms 1；Each institute
The round heart in bottom surface of described cavity, the axis of each described pod apertures 4 and institute are all crossed in the axis stating pod apertures 4
It is 30 °～60 ° that the angle of the bottom surface stating cavity is α, α span；The aperture d of eight described pod apertures 40It is identical,
d0Span be 3cm～8cm.
In technique scheme, continuous casting production turbulator according to claim 1, it is characterised in that institute
The parabolic equation stating bottom centre's paraboloid of revolution 5 is y=-kx2, wherein k span is 0.05～0.1；
The described bottom centre paraboloid of revolution 5 projects diameter of a circle d in the bottom surface of described cavity1Span is
20cm～30cm.
In technique scheme, continuous casting production turbulator according to claim 1, it is characterised in that eight
The size of individual described little parabola 6 is identical, and its parabolic equation is y=-kx2, wherein k span is
0.05～0.1；Two adjacent described little parabolas 6 are non-intersect.
In technique scheme, continuous casting production turbulator according to claim 1, it is characterised in that eight
Individual described little parabola 6 is all octagonal in bottom surface in the center of circle of the bottom surface of described cavity projection circle crosses octagon center
On the diagonal of point, eight described little parabolas 6 project diameter of a circle d in the bottom surface of described cavity2Span is
10cm～15cm.
In technique scheme, projection circle in the bottom surface of described cavity of eight described little parabolas 6 and described bottom
The central rotation parabola 5 projection circle in bottom surface is tangent, simultaneously tangent with the bottom surface of described cavity circle.
It is an advantage of the current invention that:
1, the turbulator of the present invention uses eight prism structures, it is ensured that washes away the refractory thickness at position, carries
High turbulator bulk life time；
2, the turbulator exterior base of the present invention is interval with boss, can fix turbulator, prevents turbulator floating；
3, the turbulator interior bottom portion center of the present invention is the paraboloid of revolution, can dissolve molten steel and open the height caused when watering
Impact kinetic energy；
4, the turbulator of the present invention uses parabola inner chamber, and bottom centre is big parabola, and periphery is little parabola,
Can effectively extend the molten steel holdup time, triplicity is very beneficial for molten steel and reflects in inner chamber, refluxes, overturns
Circulation, reduces turbulent flow and injection, makes molten steel steadily overflow；
5, the internal chamber wall of the turbulator of the present invention is provided with pod apertures, when molten steel stably overflows, it is possible to reduce molten steel
Turbulator entrance is washed away by refraction and backflow, improves the life-span of turbulator.
Accompanying drawing explanation
Fig. 1 is the top view of a kind of continuous casting production turbulator of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1.
Reference
1, eight prisms 2, boss 3, the paraboloid of revolution
4, pod apertures 5, bottom centre's paraboloid of revolution 6, little parabola
Detailed description of the invention
In conjunction with accompanying drawing, the invention will be further described.
The invention provides a kind of continuous casting production turbulator, it is arranged under ladle long nozzle, in tundish.As
Shown in Fig. 1, the external structure of described turbulator is eight prisms 1, and its eight cylinders are intervally distributed with three boss
2, interval mode is: the arbitrarily selected cylinder in eight cylinders of eight prisms 1, sets on this cylinder
Putting first boss, two cylinders in interval arrange second boss along clockwise direction, then are spaced a cylinder setting
3rd boss；Three boss 2 are built when tundish is built by laying bricks or stones into tundish bottom, can effectively fix described turbulent flow
Device, uses the initial stage to prevent described turbulator from occurring at tundish floating；And use the later stage to ensure described rapids at tundish
Do not produce floating after stream device abrasion.
As depicted in figs. 1 and 2, the inside of described turbulator is cavity, and the medial surface of described cavity is rotary parabolic
Face 3, the medial wall of described cavity is uniform-distribution with eight pod apertures 4；The bottom of described cavity is bottom centre's rotation
Turning parabola 5, the outside along the described bottom centre paraboloid of revolution 5 is uniformly distributed eight little parabolas 6.
The parabola summit of the described paraboloid of revolution 3 is positioned on the bottom surface of described cavity, and parabolic equation is x=ky2
(y >=0), wherein k span is 0.05～0.1.
Eight described pod apertures 4 just eight prisms to described eight prisms 1, the axis of each described pod apertures 4
Line all crosses the center of circle of the bottom surface circle of described cavity, the axis of each described pod apertures 4 and the bottom surface of described cavity
It is 30 °～60 ° that angle is α, α span；The aperture d of eight described pod apertures 40Identical, d0Value model
Enclose for 3cm～8cm.
During the use of described turbulator, molten steel corrodes the speed of refractory material ratio at described pod apertures 4 and corrodes
The speed of the refractory material at other positions within described turbulator is fast, it is contemplated that eight ribs of described eight prisms 1
The refractory thickness of post position is big, therefore described pod apertures 4 is positioned at the prism of described eight prisms 1,
Can ensure that described turbulator various places inside is impartial for service life, thus improve described turbulator bulk life time.
The parabolic equation of the described bottom centre paraboloid of revolution 5 is y=-kx2, wherein k span is
0.05～0.1；The described bottom centre paraboloid of revolution 5 projects diameter of a circle d in the bottom surface of described cavity1Span is
20cm～30cm.When molten steel is flowed into turbulator inside by turbulator entrance, the described bottom centre paraboloid of revolution 5
Can effectively dissolve molten steel and open the HI high impact kinetic energy caused when watering.
The size of eight described little parabolas 6 is identical, and its parabolic equation is y=-kx2, wherein k value model
Enclosing is 0.05～0.1, and two adjacent described little parabolas 6 are non-intersect；Eight described little parabolas 6 are at described sky
The round heart of projection of the bottom surface in chamber is all on the octagonal diagonal crossing octagon central point in bottom surface, and eight described little
Parabola 6 is at the projection diameter of a circle d of the bottom surface of described cavity2Span is 10cm～15cm；Eight described little
The parabola 6 projection in the bottom surface of described cavity is round and the described bottom centre paraboloid of revolution 5 is at the end of described cavity
The projection circle in face is tangent, simultaneously tangent with the bottom surface of described cavity circle.
The paraboloid of revolution 3 and eight of bottom little parabolas 6 in the cavity of described turbulator can effectively limit molten steel
Turbulent flow, increases the floating of the molten steel time of staying, beneficially inclusion content in melting steel.
Claims (5)
1. a continuous casting production turbulator, it is characterised in that the external structure of described turbulator is eight prisms (1), its eight cylinders are intervally distributed with three boss (2)；The inside of described turbulator is cavity, the medial surface of described cavity is the paraboloid of revolution (3), eight pod apertures (4) it are uniform-distribution with on the medial wall of described cavity, the bottom of described cavity is bottom centre's paraboloid of revolution (5), and the outside along the described bottom centre paraboloid of revolution (5) is uniformly distributed eight little parabolas (6)；The parabolical summit of the described paraboloid of revolution (3) is positioned on the bottom surface of described cavity, and parabolic equation is x=ky2(y >=0), wherein k span is 0.05～0.1；The parabolic equation of the described bottom centre paraboloid of revolution (5) is y=-kx2, wherein k span is 0.05～0.1；The described bottom centre paraboloid of revolution (5) projects diameter of a circle d in the bottom surface of described cavity1Span is 20cm～30cm；The size of eight described little parabolas (6) is identical, and its parabolic equation is y=-kx2, wherein k span is 0.05～0.1；Two adjacent described little parabolas (6) are non-intersect.
Continuous casting production turbulator the most according to claim 1, it is characterized in that, the interval mode of described three boss (2) is: the arbitrarily selected cylinder in eight cylinders of described eight prisms (1), this cylinder arranges first boss, along clockwise direction on two cylinders in interval second boss it is set, then is spaced a cylinder the 3rd boss is set.
Continuous casting production turbulator the most according to claim 1, it is characterised in that eight described pod apertures (4) just eight prisms to described eight prisms (1)；The round heart in bottom surface of described cavity is all crossed in the axis of each described pod apertures (4), and it is 30 °～60 ° that the angle of the axis of each described pod apertures (4) and the bottom surface of described cavity is α, α span；The aperture d of eight described pod apertures (4)0Identical, d0Span be 3cm～8cm.
Continuous casting production turbulator the most according to claim 1, it is characterized in that, eight described little parabolas (6) project the round center of circle in the bottom surface of described cavity all on the octagonal diagonal crossing octagon central point in bottom surface, and eight described little parabolas (6) project diameter of a circle d in the bottom surface of described cavity2Span is 10cm～15cm.
Continuous casting production turbulator the most according to claim 1, it is characterized in that, eight described little parabolas (6) projection circle in the bottom surface of described cavity is tangent with the described bottom centre paraboloid of revolution (5) the projection circle in bottom surface, simultaneously tangent with the bottom surface of described cavity circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610522.3A CN104325101B (en) | 2014-11-03 | 2014-11-03 | A kind of continuous casting production turbulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610522.3A CN104325101B (en) | 2014-11-03 | 2014-11-03 | A kind of continuous casting production turbulator |
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| CN104325101A CN104325101A (en) | 2015-02-04 |
| CN104325101B true CN104325101B (en) | 2016-08-17 |
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| CN201410610522.3A Active CN104325101B (en) | 2014-11-03 | 2014-11-03 | A kind of continuous casting production turbulator |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI615219B (en) * | 2016-12-28 | 2018-02-21 | China Steel Corp | Diversion brick |
| CN111113638B (en) * | 2020-01-20 | 2021-04-02 | 莱芜钢铁集团银山型钢有限公司 | Preparation method of low-cost long-service-life slab continuous casting tundish turbulator |
| CN111113636B (en) * | 2020-01-20 | 2021-04-02 | 莱芜钢铁集团银山型钢有限公司 | Preparation method of tundish turbulence controller for low-cost long-service-life continuous casting of special-shaped blank and tundish turbulence controller prepared by preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201848513U (en) * | 2010-03-08 | 2011-06-01 | 浙江自立股份有限公司 | Tundish turbulator |
| CN201693166U (en) * | 2010-06-18 | 2011-01-05 | 中钢集团洛阳耐火材料研究院有限公司 | Continuous casting tundish turbulence inhibitor |
| JP5790512B2 (en) * | 2011-02-24 | 2015-10-07 | Ｊｆｅスチール株式会社 | Slag detection device and slag detection method |
| CN201988711U (en) * | 2011-03-03 | 2011-09-28 | 莱芜钢铁股份有限公司 | Novel continuous casting tundish turbulence controller |
| CN202387935U (en) * | 2011-11-08 | 2012-08-22 | 山东钢铁股份有限公司 | Turbulence controller for continuous casting tundish |
| CN203565812U (en) * | 2013-10-12 | 2014-04-30 | 河南省耕生耐火材料有限公司 | Tundish flow stabilizer |
| CN204262307U (en) * | 2014-11-03 | 2015-04-15 | 山东钢铁股份有限公司 | A kind of continuous casting production turbulator |
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