Drying apparatus for pourable material and method for producing a drying apparatus for pourable material

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, which is rotatable about its central axis, the built-in components configured to thoroughly mix and convey the pourable material from a drum entrance to a drum exit while guiding through a tempered gaseous transport fluid;
• and
• a plurality of support rings arranged between the built-in components and the drum, 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 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, and
• wherein a maintenance opening is arranged between two modules of built-in components, each module of built-in components comprises built-in components mounted between two support frames.

A method for producing a drum or a 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, 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, the method comprising:

• mounting the built-in components between two support frames to produce a module of built-in components;
• mounting metallic support rings configured to absorb tensile and compressive stresses in an elastic manner around a circumference of each of the two support frames, each of the support rings being 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;
• introducing the module of built-in components with mounted support rings in the drum or drum segment and pre-fixing the module of built-in components in a preliminary manner with wedges, stitch welding, or a combination thereof;
• connecting the support rings of the module of built-in components with mounted support rings to the drum or the drum segment.

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, which is rotatable about its central axis, the built-in components configured to thoroughly mix and convey the pourable material from a drum entrance to a drum exit while guiding through a tempered gaseous transport fluid;
• and
• a plurality of support rings arranged between the built-in components and the drum, 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 a combination thereof,
• wherein the built-in components are arranged between two circular support frames, the circular support frames having a smaller radius than a radius of the drum, and wherein the support rings are arranged between the a circular support frame and the drum or drum segment, and
• wherein a maintenance opening is arranged between two modules of built-in components, each module of built-in components comprises built-in components mounted between two support frames.