refractory composition for constructing structure in fluidized bed reduction furnace for reduction of iron ore

摘要

The present invention provides new Finex ironmaking gongbeopin (FINEX) process in iron ore (粉 铁矿石) for the reduction to a fluidized-bed reduction (Fluid Layer Reduction Furnace) for the reduction of the internal components of the gas component corrosion resistance, thermal shock resistance, to have a high strength and wear resistance relates to a molding material suitable for the inner component. ; The present invention is a 100% by weight, 10-17% by weight of calcined alumina, ultrafine powder silica evaporation (SiO ₂₎ 3~6% by weight, 6 to 10% by weight of alumina cement, the rest of the Composition of sintered alumina or fused alumina It is a technique to provide a refractory composition for use in forming structures in the fluidized-bed reduction for the reduction of iron ore to minutes characterized. ; A furnace, a fluidized bed reduction, fire-resistant composition, iron ores, distribution plate