Tundish slag blocking wall casting material and using method thereof

Abstract

The invention discloses a tundish slag blocking wall casting material and a using method thereof. The tundish slag blocking wall casting material comprises the following components in percentage by weight: 40-60% of a waste magnesia carbon brick regenerated material, 20-40% of a magnesium-based material, 5-10% of a binder, 1-3% of industrial silica fume, and 6-9% of alumina powder. The method provided by the invention recycles waste magnesia carbon bricks used by a steel ladle working lining, and takes the waste magnesia carbon brick regenerated material as one raw material to prepare the tundish slag blocking wall casting material. The method provided by the invention has the characteristics of low production costs, a simple production process and energy conservation, and a slag blockingwall formed by casting of the tundish slag blocking wall casting material has high strength, low use loss and long service life.

Description

technical field [0001] The invention relates to the technical field of refractory mud for steelmaking, in particular to a castable for a tundish slag retaining wall. Background technique [0002] The magnesia-carbon brick used in the working lining of the ladle is a resource that can be recycled and reused after use. At present, the main ways to recycle the magnesia-carbon brick used for the working lining of the ladle in China are: research and development of recycled magnesia-carbon bricks, production of dry Vibration materials, etc. [0003] Although the existing technology of recycling magnesia-carbon bricks after ladle working lining can solve the problem of reusing magnesia-carbon bricks, the existing problem is that the regeneration value is relatively small and cannot be fully economically utilized. [0004] At present, the raw material used for the castable of tundish slag retaining wall is mid-grade magnesia raw material, which is relatively expensive and has grea...

AI Technical Summary

Problems solved by technology

[0003] Although the existing technology of recycling magnesia-carbon bricks after ladle working lining can solve the problem of reusing magnesia-carbon bricks, the existing problem is that the regeneration value is relatively small and cannot be fully economically utilized.

[0004] At present, the raw material used for the tundish slag retaining wall castable is mid-grade magnesia raw material, which is relatively expensive, and there is a lot of room for reduction in production costs.