MUD MATERIAL FOR BLAST FURNACE TAP HOLE BLOCKAGE

摘要

PROBLEM TO BE SOLVED: To provide a mud material which solves a problem of filling performance degradation at a time of mud material filling by containing a binder having low temperature dependence in the mud material, has low fluid temperature dependence and stable filling performance even if temperature at a time of application of the mud material varies, and can keep enough strength and build a good basis after filled inside of a furnace.SOLUTION: In a mud material consisting of a fire resisting aggregate and a binder, the binder in which vegetable oil and coal tar are blended is combined by 10-30 mass% in outer percentage for 100 mass% of the fire resisting aggregate.SELECTED DRAWING: None