PREDICTION OF CHANNELING CAUSED BY BREAKTHROUGH OF COHESIVE ZONE IN BLAST-FURNACE

A prediction system was developed by integrating the appropriate knowl edge base for the channelling phenomenon in the blast furnace. Three c hannelling mechanisms were considered: breakthrough, formation of void s in the upper burden, and critical pressure drop. Of the th ree, the breakthrough mechanism was considered to apply to the current system, Knowledge acquisition, knowledge representation, and validation and ap plication of the system are discussed with emphasis on channelling pre diction. The developed system has been successfully applied in the fin e tuning of operating blast furnaces. IS/1329 (C) 1998 The Institute o f Materials.