Thermal-insulating construction process for tundish

Abstract

The invention provides a thermal-insulating construction process for a tundish. The thermal-insulating construction process comprises the following steps: S1, anchoring nails are fixed, specifically,the anchoring nails which are distributed in an arrayed mode are fixed to the inner surface of an envelope of the tundish; S2, thermal-insulating plates are laid, specifically, the thermal-insulatingplates are laid on the inner surface of the envelope of the tundish to fully pave the inner surface of the envelope of the tundish; S3, light bricks are laid, specifically, the light bricks are laid on the other surfaces of the thermal-insulating plates to cover all the thermal-insulating plates; S4, a core mold is mounted, specifically, the core mold is placed into the envelope, and the core moldand the envelope are made to be relatively fixed; and S5, casting and demolding are conducted, specifically, a castable is poured into a cavity defined by the core mold and the envelope jointly, andafter the castable is solidified, the core mold is upwards moved out to complete demolding. The heat loss of molten steel can be reduced, the situation that the molten steel becomes sticky due to thefact that the temperature of the molten steel is lower than the smelting requirement is avoided, and thus the thermal-insulating effect of the thermal-insulating tundish is achieved.

Description

technical field [0001] The invention relates to the thermal insulation technology of a steelmaking tundish, in particular to a thermal insulation construction process of a tundish. Background technique [0002] The inner lining of steelmaking tundish consists of permanent layer, working layer and surface coating. The inner lining of steelmaking tundish is usually made by traditional clay brick masonry method. [0003] During the pouring process, the continuous casting machine has certain requirements on the temperature of molten steel. When the molten steel flows from the ladle to the tundish, the molten steel dissipates heat; when it flows in the tundish, the molten steel also dissipates heat. As the heat of the molten steel continues to dissipate, the molten steel becomes viscous and its fluidity becomes poor, which leads to abnormal conditions in the casting process of the continuous casting machine. [0004] However, the inner lining of the tundish adopts the refracto...

AI Technical Summary

Problems solved by technology

As the heat of the molten steel continues to dissipate, the molten steel becomes viscous and its fluidity becomes poor, which leads to abnormal conditions in the casting process of the continuous casting machine

[0004] However, the inner lining of the tundish adopts the refractory brick masonry mode, and the refractory brick is directly attached to the cladding of the tundish, resulting in a faster dissipation of the molten steel in the tundish, and some inner linings of the tundish are also cast. , the castable is in direct contact with the cladding of the tundish, which also causes faster dissipation of molten steel

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