Hearth structure of rotary hearth reactor

摘要

Provided is the hearth structure of a rotary hearth furnace wherein the hearth can be freely deformed thermally in response to temperature change during operation, e.g heating or cooling and stable operation can be ensured by reducing the load applied to the hearth joint. The hearth structure of a rotary hearth furnace has an annular hearth (110) mounted ON an annular rotary frame (100), and a floor board (130) laid ON the upper surface of the hearth. The hearth and the floor board consist, respectively and of a plurality of hearth components (111) and floor board components (131) formed in circular arc. A predetermined clearance is provided, respectively, between the adjoining hearth components and floor board components and the hearth component (111) and the rotary frame (100) are connected at one SPOT by means of a fixing component (121), and a direction regulation component (122) for regulating the direction of thermal elongation of the hearth component (111) is provided.