CASTABLE REFRACTORY FOR SILICA REMOVING SPOUT IN CASTING HEARTH BOTTOM OF BLAST FURNACE

摘要

PURPOSE:To improve both corrosion and spalling resistance and increase durability by specifying the composition of a refractory composition. CONSTITUTION:In a castable refractory composition for lining a molten metal pretreating apparatus using an iron oxide-based treating agent, 55-90wt.% silicon carbide is contained and other refractories and binders are blended as the remainder. Thereby, durability can be increased with excellent corrosion and spalling resistance even in an atmosphere using various iron oxide treating agents at high temperature.