A low-cost high-life continuous casting tundish turbulence controller and its preparation method

Abstract

The invention discloses a preparation method for a low-cost long-service-life turbulence inhibitor for a continuous casting tundish. The turbulence inhibitor comprises a housing (1), an inner core (2), a bottom plate (3) and a coating layer (4). The low-cost long-service-life turbulence inhibitor is characterized in that the housing (1) of the turbulence inhibitor is molded by casting low-cost magnesium castable, the inner core (2) is molded by vibrating regenerated dry type materials; the bottom plate (3) is built by adopting waste magnesium-carbon bricks; the periphery (5) of the bottom plate is filled and compacted with regenerated dry materials in a leveling up mode; and the coating layer (4) coats the outer surface of the inner core (2) and the bottom plate (3) by adopting regenerated coating. The production cost for the turbulence inhibitor prepared through the preparation method is reduced by more than 45%, and the turbulence inhibitor used for the continuous casting tundish reaches 24-30 hours, so that low cost and long service life are realized.

Description

technical field [0001] The invention relates to a low-cost, high-life continuous casting tundish turbulence controller and a preparation method thereof, belonging to the technical field of continuous casting refractory materials. Background technique [0002] Installing a turbulence controller in the tundish of the continuous casting machine can change the running route of the molten steel in the tundish, prolong the residence time, promote the floating and removal of inclusions, and play an important role in improving the quality of the cast slab. In recent years, the production technology of turbulence controllers has developed towards large-scale and long-life, and a composite turbulence controller has been invented. However, the production cost of the composite turbulence controller has also increased significantly, which has increased the production cost of continuous casting, and its application and promotion have been relatively limited. big impact. [0003] Chinese ...

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Problems solved by technology

[0004] Aiming at the technical problem of high production cost of the existing composite turbulence controller, the present invention provides a low-cost, high-life continuous casting tundish turbulence controller and its preparation method. The turbulence controller uses waste magnesia carbon bricks and dust The waste magnesia-carbon bricks and low-cost magnesia castables, regenerated dry materials, and regenerated smears that are directly used in the preparation of main raw materials are used in different parts of the turbulence controller, so that the production cost of the turbulence controller of the present invention is reduced by 45% year-on-year Above, the turbulence controller used in the slab continuous casting tundish reaches 24-30 hours, realizing low cost and high life

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