Abstract
The authors test the corrosion and wear resistance of several refractories used in the tuyere zone of furnaces to the effects of temperature and slags consisting of vanadium oxides, silicates, and iron. Their investigation leads them to make the following recommendations to increase this properties: the acid iron-silicate composition of the slags mandates the use of high-chrome refractories; an increase in the thermal-shock resistance and oxidation resistance can be achieved by preliminary impregnation of the refractories with fusible metals such as aluminium, silicon, and magnesium; and to reduce the slag impregnation and accelerate the formation of the cermet structure in chromite-periclase refractories it is necessary to carry out preliminary impregnation with carbonaceous material with a high coke residue. The contribution of these recommendations to the overall service and efficiency of the furnace is cited.
Published Version
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