Abstract:
The rotary atomizer is intended for a spray drying apparatus and comprises a feed supply pipe (104), a drive motor (102), a drive shaft (107), one or more bearings (111, 112, 113) supporting or guiding the drive shaft, and an atomizer wheel (106). At least one of the bearing or bearings (111, 112, 113) is a foil bearing. An additional supply device (114) for air or gas may be provided to be connected to the at least one foil bearing (111,112). Furthermore, the additional supply device (114) may be connected to further opening into a position nearby the atomizer wheel (106) by means of a branch connection (115).