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A kind of internal rotation turbulence controller for continuous casting tundish

A technology of turbulence controller and continuous casting tundish, which is applied in the field of rotary type turbulence controller in continuous casting tundish, can solve the problems of limited floating removal ability of inclusions, difficulty in floating inclusions, etc. Extended residence time, effective removal

Active Publication Date: 2016-10-05
WUHAN UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

However, the ability to float and remove inclusions is very limited, and inclusions with small particle sizes are difficult to float

Method used

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  • A kind of internal rotation turbulence controller for continuous casting tundish
  • A kind of internal rotation turbulence controller for continuous casting tundish
  • A kind of internal rotation turbulence controller for continuous casting tundish

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Embodiment Construction

[0020] refer to Figure 1-4 , including a controller body 2 and a hollow chamber 4 formed in the controller body 2, the upper end of the hollow chamber is provided with an opening 5, and the bottom of the hollow chamber is provided with cubic swirl baffles 3 in the same direction of rotation. The width of the opening 5 is 3-7 times, preferably 5 times, the inner diameter of the tundish shroud. The shape of the controller body 2 , the opening 5 and the hollow chamber 4 is a cube, a cylinder or a conical frustum with a large top and a small bottom.

[0021] The cubic swirl baffles 3 arranged around the bottom of the hollow chamber are arranged directly below the long nozzle of the tundish and coincide with the centerline of the long nozzle 6, which can effectively reduce turbulent kinetic energy and prevent excessive fluctuations in the liquid level.

[0022] The bottom of the hollow chamber 4 is provided with two cubic swirl baffles in each direction, and the distance between ...

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Abstract

The invention relates to a continuous casting tundish internal swirling turbulence controller, which comprises a controller body and a hollow chamber formed in the controller body. Consistent to the cube swirl baffle that is not perpendicular to the side. In the present invention, a cubic swirl baffle with the same rotation direction is arranged at the bottom of the hollow chamber corresponding to the pouring shroud just below the tundish shroud, so that the molten steel injected through the tundish shroud forms a swirling velocity field , that is, it can prevent the liquid level from fluctuating too much, stabilize the molten steel, reduce the turbulent kinetic energy, and the centrifugal force generated greatly promotes the collision probability of non-metallic inclusions. removal, and finally achieved the purpose of purifying molten steel. The invention has the advantages of simple structure, convenient processing and convenient operation; it can form a swirling velocity field inside, effectively remove inclusions, and effectively reduce turbulent kinetic energy.

Description

technical field [0001] The invention relates to an internal rotation turbulence controller of a continuous casting tundish. Background technique [0002] With the continuous improvement of billet quality requirements, the continuous casting tundish has been paid more and more attention as an important reaction vessel for purifying molten steel. In recent years, people have adopted a tundish turbulence controller. During the process of injecting molten steel into the tundish, the tundish turbulence device plays a role in stabilizing the molten steel, reducing the degree of turbulence in the tundish molten steel, and improving the flow characteristics of the tundish molten steel. , prolong the residence time, promote the floating of inclusions, and prevent the secondary oxidation of molten steel caused by the splashing of molten steel when the molten steel is poured. [0003] Traditional turbulence controllers play an important role in suppressing turbulent kinetic energy, pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/10
Inventor 金焱李洋郭亚武金业磊冯学武常正昇
Owner WUHAN UNIV OF SCI & TECH
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