Ring sealing for an indirect heated rotary-drum furnace

摘要

The ring sealing device is between the heating tunnel and the rotating tube (20). It has several overlapping segments (10) forming it. They are pressed radially by a pressing force (30) to the tube. The segments consist mainly of a light heat-resistant sealing material. The ring has several flat-surface sectors (32) connected by springs (34) to form a clamping ring.