HEARTH STRUCTURE FOR ROTARY HEARTH TYPE FURNACE

摘要

PROBLEM TO BE SOLVED: To prevent a hearth refractory castable layer from being floated or the like by effectively absorbing the expansion of the layer without being disturbed by a pellet. SOLUTION: The intermediate part of an annular rotary hearth 2 arranged between an inner peripheral wall and an outer peripheral wall in inward and outward directions is constituted of a refractory castable layer 35. A plurality of rows of refractory bricks 73 and 74 are disposed at least on one side of an inner peripheral side and an outer peripheral side adjacent to a refractory castable layer 45, and predetermined gaps 57 and 58 are formed between the rows of the bricks 73 and 74.