CN104325101A - Continuous casting tundish turbulator - Google Patents
Continuous casting tundish turbulator Download PDFInfo
- Publication number
- CN104325101A CN104325101A CN201410610522.3A CN201410610522A CN104325101A CN 104325101 A CN104325101 A CN 104325101A CN 201410610522 A CN201410610522 A CN 201410610522A CN 104325101 A CN104325101 A CN 104325101A
- Authority
- CN
- China
- Prior art keywords
- turbulator
- continuous casting
- cavity
- paraboloid
- revolution
- Prior art date
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- Granted
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 238000005272 metallurgy Methods 0.000 abstract description 3
- 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 8
- 238000007667 floating Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 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
- 230000003628 erosive effect Effects 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
- 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
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 invention relates to a continuous casting tundish turbulator. An external structure of the turbulator is an eight-edge prismoid (1); three bosses (2) are distributed on the eight cylindrical surfaces at intervals; a cavity is formed in the turbulator; the inner side surface of the cavity is a rotary paraboloid (3); eight flow guide holes (4) are uniformly formed in the inner side wall of the cavity; the bottom of the cavity is a bottom center rotary paraboloid (5); eight small paraboloids (6) are uniformly distributed along the outer side of the bottom center rotary paraboloid (5). The turbulator disclosed by the invention has the advantages of enhancing the metallurgy function, preventing flotatage and having long 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 of ladle and crystallizer centre, is last ring before molten steel enters crystallizer, to ensureing that the quality of continuous casting billet has great importance." tundish metallurgy " technology is since early 1980s, the phase was suggested, and along with the development of continuous casting technology, its effect is subject to increasing attention, has now developed into the outer metallurgical technology of a special comprehensive stove." tundish metallurgy " technology, by improving MOLTEN STEEL FLOW condition, reduces the generation in short-circuit flow and dead band, and improve flow direction and extend path, the floating for inclusion content in melting steel provides favourable condition, thus ensures the degree of purity of pour steel; Effectively can prevent the secondary pollution of molten steel in casting process, alleviate molten steel to refractory corrosion, reduce being involved in and the harm of unstable oxide in slag of slag.In continuous casting production, install flow control device is the effective ways realizing above-mentioned metallurgical function, by installing the flow control device of suitable construction, can play and stablize and optimize the flow regime of molten steel in tundish, increase the time of staying of molten steel in tundish, to promote in molten steel that large inclusions floats to be separated, even liquid steel temperature and composition, prevent the metallurgical effects such as secondary oxidation of steel pollution.
Current flow control device adopts turbulator usually, and in order to dissolve the kinetic energy that molten steel flows into, turbulator inner chamber is generally designed to lower large little shape, increases a large dead slot to limit molten steel turbulent flow in bottom; This design can weaken the rolling turbulence of beam district molten steel to a certain extent, but at stabilized steel water flow and prevent from opening and water in splash, need to improve; This design makes turbulator wall thickness differ, and simultaneously because diverse location scouring intensity differs, causes turbulator different parts to differ service life; And use initial stage and later stage at tundish, thermal stress and wash away breakage and easily cause turbulator floating and accidents caused.
Summary of the invention
The object of the invention is to solve the above-mentioned technical problem that existing continuous casting production turbulator exists, thus provide a kind of and 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 following technical scheme:
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, the madial wall of described cavity is uniform-distribution with eight pod apertures 4, 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.
In technique scheme, the interval mode of described three boss 2 is: the selected arbitrarily cylinder in eight cylinders of described eight prisms 1, this cylinder arranges first boss, two, interval cylinder arranges second boss along clockwise direction, then one, interval cylinder 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, and parabolic equation is x=ky
2(y>=0), wherein k span is 0.05 ~ 0.1.
In technique scheme, eight described pod apertures 4 are just to eight prisms of 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 the angle of each axis of described pod apertures 4 and the bottom surface of described cavity is α, and α span is 30 ° ~ 60 °; The aperture d of eight described pod apertures 4
0identical, d
0span be 3cm ~ 8cm.
In technique scheme, continuous casting production turbulator according to claim 1, is characterized in that, the parabolic equation of the described bottom centre paraboloid of revolution 5 is y=-kx
2, wherein k span is 0.05 ~ 0.1; The described bottom centre paraboloid of revolution 5 is at the bottom surface of described cavity projection diameter of a circle d
1span is 20cm ~ 30cm.
In technique scheme, continuous casting production turbulator according to claim 1, is characterized in that, the size of eight described little parabolas 6 is identical, and its parabolic equation is y=-kx
2, wherein k span is 0.05 ~ 0.1; Adjacent two described little parabolas 6 are non-intersect.
In technique scheme, continuous casting production turbulator according to claim 1, it is characterized in that, eight described little parabolas 6 project the round center of circle all on the octagonal diagonal crossing octagon central point in bottom surface in the bottom surface of described cavity, and eight described little parabolas 6 are at the bottom surface of described cavity projection diameter of a circle d
2span is 10cm ~ 15cm.
In technique scheme, the projection circle of eight described little parabolas 6 in the bottom surface of described cavity is tangent with the projection circle of the described bottom centre paraboloid of revolution 5 in bottom surface, simultaneously tangent with the bottom surface circle of described cavity.
The invention has the advantages that:
1, turbulator of the present invention adopts eight prism structures, can ensure the refractory thickness of washing away position, improves turbulator bulk life time;
2, turbulator exterior base of the present invention is interval with boss, can fix turbulator, prevents turbulator floating;
3, turbulator interior bottom portion center of the present invention is the paraboloid of revolution, can dissolve molten steel and open the HI high impact kinetic energy caused when watering;
4, turbulator of the present invention adopts parabola inner chamber, and bottom centre is large 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, molten steel is steadily overflowed;
5, the internal chamber wall of turbulator of the present invention is provided with pod apertures, when the stable spilling of molten steel, can reduce molten steel refraction and backflow washing away turbulator entrance, improve 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 numeral
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
Now the invention will be further described by reference to the accompanying drawings.
The invention provides a kind of continuous casting production turbulator, under it is arranged on ladle long nozzle, in tundish.As shown in Figure 1, the external structure of described turbulator is eight prisms 1, its eight cylinders are intervally distributed with three boss 2, interval mode is: the selected arbitrarily cylinder in eight cylinders of eight prisms 1, this cylinder arranges first boss, two, interval cylinder arranges second boss along clockwise direction, then one, interval cylinder arranges the 3rd boss; Three boss 2 are built when tundish is built by laying bricks or stones into tundish bottom, can effectively fix described turbulator, use the initial stage to prevent described turbulator from occurring floating at tundish; And do not produce floating after tundish uses the later stage to ensure the wearing and tearing of described turbulator.
As depicted in figs. 1 and 2, the inside of described turbulator is cavity, and the medial surface of described cavity is the paraboloid of revolution 3, the madial wall of described cavity is uniform-distribution with eight pod apertures 4; 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 parabola summit of the described paraboloid of revolution 3 is positioned on the bottom surface of described cavity, and parabolic equation is x=ky
2(y>=0), wherein k span is 0.05 ~ 0.1.
Eight described pod apertures 4 are just to eight prisms of described eight prisms 1, the center of circle of the bottom surface circle of described cavity is all crossed in the axis of each described pod apertures 4, the angle of the axis of each described pod apertures 4 and the bottom surface of described cavity is α, and α span is 30 ° ~ 60 °; The aperture d of eight described pod apertures 4
0identical, d
0span be 3cm ~ 8cm.
In the use procedure of described turbulator, the speed that molten steel corrodes described pod apertures 4 place refractory material is faster than the speed of the refractory material at other positions of the described turbulator inside of erosion, consider that the refractory thickness of eight prism positions of described eight prisms 1 is large, therefore described pod apertures 4 is positioned over the prism place of described eight prisms 1, can ensure that described turbulator various places inside is impartial for service life, improve described turbulator bulk life time thus.
The parabolic equation of the described bottom centre paraboloid of revolution 5 is y=-kx
2, wherein k span is 0.05 ~ 0.1; The described bottom centre paraboloid of revolution 5 is at the bottom surface of described cavity projection diameter of a circle d
1span is 20cm ~ 30cm.When molten steel flows into turbulator inside by turbulator entrance, the described bottom centre paraboloid of revolution 5 effectively can be dissolved 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=-kx
2, wherein k span is 0.05 ~ 0.1, and adjacent two described little parabolas 6 are non-intersect; Eight described little parabolas 6 at the round heart of the projection of the bottom surface of described cavity all on the octagonal diagonal crossing octagon central point in bottom surface, eight the projection diameter of a circle ds of described little parabola 6 in the bottom surface of described cavity
2span is 10cm ~ 15cm; The projection circle of eight described little parabolas 6 in the bottom surface of described cavity is tangent with the projection circle of the described bottom centre paraboloid of revolution 5 in the bottom surface of described cavity, simultaneously tangent with the bottom surface circle of described cavity.
The paraboloid of revolution 3 in the cavity of described turbulator and eight of bottom little parabolas 6 can effectively limit molten steel turbulent flow, increase the molten steel time of staying, are beneficial to the floating of inclusion content in melting steel.
Claims (8)
1. a continuous casting production turbulator, is characterized in that, the external structure of described turbulator is eight prisms (1), its eight cylinders is 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), the madial wall of described cavity is uniform-distribution with eight pod apertures (4), 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).
2. continuous casting production turbulator according to claim 1, it is characterized in that, the interval mode of described three boss (2) is: the selected arbitrarily cylinder in eight cylinders of described eight prisms (1), this cylinder arranges first boss, along clockwise direction two, interval cylinder arranges second boss, then one, interval cylinder arranges the 3rd boss.
3. continuous casting production turbulator according to claim 1, is characterized in that, the parabolical summit of the described paraboloid of revolution (3) is positioned on the bottom surface of described cavity, and parabolic equation is x=ky
2(y>=0), wherein k span is 0.050.1.
4. continuous casting production turbulator according to claim 1, is characterized in that, eight described pod apertures (4) are just to eight prisms of 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 the angle of each axis of described pod apertures (4) and the bottom surface of described cavity is α, and α span is 30 ° ~ 60 °; The aperture d of eight described pod apertures (4)
0identical, d
0span be 3cm ~ 8cm.
5. continuous casting production turbulator according to claim 1, is characterized in that, the parabolic equation of the described bottom centre paraboloid of revolution (5) is y=-kx
2, wherein k span is 0.05 ~ 0.1; The described bottom centre paraboloid of revolution (5) is at the bottom surface of described cavity projection diameter of a circle d
1span is 20cm ~ 30cm.
6. continuous casting production turbulator according to claim 1, is characterized in that, the size of eight described little parabolas (6) is identical, and its parabolic equation is y=-kx
2, wherein k span is 0.05 ~ 0.1; Adjacent two described little parabolas (6) are non-intersect.
7. continuous casting production turbulator according to claim 1, it is characterized in that, eight described little parabolas (6) project the round center of circle all on the octagonal diagonal crossing octagon central point in bottom surface in the bottom surface of described cavity, and eight described little parabolas (6) are at the bottom surface of described cavity projection diameter of a circle d
2span is 10cm ~ 15cm.
8. continuous casting production turbulator according to claim 1, it is characterized in that, eight projection circle and the described bottom centre paraboloid of revolution (5) projections in bottom surface of described little parabola (6) in the bottom surface of described cavity are round tangent, simultaneously tangent with the bottom surface circle of described cavity.
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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| Publication Number | Publication Date |
|---|---|
| CN104325101A true CN104325101A (en) | 2015-02-04 |
| CN104325101B CN104325101B (en) | 2016-08-17 |
Family
ID=52399972
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410610522.3A Active CN104325101B (en) | 2014-11-03 | 2014-11-03 | A kind of continuous casting production turbulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104325101B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI615219B (en) * | 2016-12-28 | 2018-02-21 | China Steel Corp | Diversion brick |
| CN111113638A (en) * | 2020-01-20 | 2020-05-08 | 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 |
| CN111113636A (en) * | 2020-01-20 | 2020-05-08 | 莱芜钢铁集团银山型钢有限公司 | Preparation method of low-cost long-service-life special-shaped blank continuous casting tundish turbulence controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201848513U (en) * | 2010-03-08 | 2011-06-01 | 浙江自立股份有限公司 | Tundish turbulator |
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| JP2012187634A (en) * | 2011-02-24 | 2012-10-04 | Jfe Steel Corp | Device and method for detecting slag |
| 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 |
-
2014
- 2014-11-03 CN CN201410610522.3A patent/CN104325101B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI615219B (en) * | 2016-12-28 | 2018-02-21 | China Steel Corp | Diversion brick |
| CN111113638A (en) * | 2020-01-20 | 2020-05-08 | 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 |
| CN111113636A (en) * | 2020-01-20 | 2020-05-08 | 莱芜钢铁集团银山型钢有限公司 | Preparation method of low-cost long-service-life special-shaped blank continuous casting tundish turbulence controller |
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| Publication number | Publication date |
|---|---|
| CN104325101B (en) | 2016-08-17 |
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