Rotary hearth furnace including a method to determine a circumferal direction thermal expansion margin

摘要

A rotary hearth furnace (1) in which a rotary hearth (10) is arranged between an outer circumference wall and an inner circumference wall is disclosed. The furnace (1) includes: an annular hearth frame, a hearth heat insulating material (5) arranged on the hearth frame, a plurality of refractories (6) arranged on the hearth heat insulating material (5), the corner refractories (7 and 8) arranged to an outer circumference part of the rotary hearth (10) and an inner circumference part of the rotary hearth (10). In general, the specification discloses general equations capable of adequately determining a thermal expansion margin in the rotary hearth furnace (1) which has a simple hearth structure in which the hearth (10) is not damaged even when operated for a long term. (62) Divided Out of 566210