Abstract: A drum or drum segment for a drying apparatus of pourable material having built-in components arranged within the drum, which is rotatable about its central axis. The built-in components thoroughly mix and convey the pourable material from a drum entrance to a drum exit while guiding through a tempered gaseous transport fluid. Several support rings are arranged between the built-in components and the drum. The support rings are arranged to be statically supporting, but compensate tensile and compressive stresses in an elastic manner. The support rings are connected to the built-in components, a support frame and the drum, or a combination thereof A method for producing the drum or drum segments includes pre-mounting modules of built-in components and inserting the modules of built-in components into the drum or the drum segment.

Abstract: The invention relates to a drum (5) or drum segment (12, 12?, 12?) for a drying apparatus of pourable material, with built-in components (8) being arranged within the drum (5) which is rotatable about its central axis, which built-in components thoroughly mix and convey the pourable material (9) from the drum entrance (4) to the drum exit (6) while guiding through a tempered gaseous transport fluid. The invention consists in that several support rings (7) are arranged between the built-in components (8) and the drum (5), which support rings are arranged to be statically supporting, but compensate tensile and compressive stresses in an elastic manner, and are connected in a positive and/or non-positive way with the built-in components (8) and/or their support frame (14) and the drum (5). A method is further presented with which it is possible to produce drums (5) or drum segments (12) in a simpler and more cost-effective manner than permitted by the prior state of the art.