Patent ID: 8910393

Claim:
A drum or drum segment for a drying apparatus of pourable material, the drum or drum segment comprising: built-in components arranged within the drum or drum segment, which is rotatable about its central axis, between two support frames to produce a module of built-in components, the built-in components configured to thoroughly mix and convey the pourable material from a drum or drum segment entrance to a drum or drum segment exit while guiding through a tempered gaseous transport fluid; and a plurality of support rings arranged around a circumference of each of the two support frames between each of the two support frames and the drum or drum segment, the support rings configured to be statically supporting, compensate tensile and compressive stresses in an elastic manner, and connect to the built-in components, a support frame and the drum or drum segment, or a combination thereof, wherein a support ring is at least partially defined by a pair of legs and an opening in a circumference of the support ring disposed between the legs at an area in which the legs contact the drum or drum segment, the opening facing outwardly toward the drum or drum segment.