SYSTEM CONCEPT FOR MILLS AND CLASSIFIERS WITH MAGNETIC BEARING SPINDLE DRIVES

摘要

The invention concerns a system concept for process-technological machines such as mills and classifiers in enclosed design with no rotary unions between th e ambient air and the inside of the system. This system concept is particularly suitab le for CIP and SIP mode, glove-box operation and combinations thereof. Over and above this, the invention concerns an encapsulation of mills and classifiers with magnet ic bearing spindle drive in order to seal the components of the magnetic bearin g spindle drive located below the encapsulation against the working zone of the shaft in the magnetic bearing spindle housing. The magnetic bearing spindle drive is designed such that the magnetic bearing spindle shaft can be pulled out to facilitate simpler and easier component exchange as well as thorough cleaning.