CARBONACEOUS REFRACTORY MATERIAL, PROCESS FOR PRODUCING SAME, AND FURNACE BOTTOM OR SIDE WALL OF BLAST FURNACE

摘要

The present invention further suppresses the formation of cracks due to thermal stress by increasing the mechanical strength of the refractory material without lowering the necessary properties required for furnace bottom refractory materials such as molten iron corrosion resistance and solvent resistance of carbonaceous refractory materials. To provide a carbonaceous refractory material and a method for producing the same, 60 to 85 mass% of carbonaceous raw material consisting of one or two or more of roasted anthracite, calcined coke, natural graphite or artificial graphite, 5 to 15 mass% of refractory metal oxide, metal A carbonaceous refractory material characterized by adding and kneading an organic binder to a refractory raw material consisting of 4 to 15% by weight of silicon and 2 to 10% by weight of carbon black, and kneading the mixture, and firing in a non-oxidizing atmosphere.