Rotating Wheel Dryer
October 11, 2007
NovaWheel continuously puts dry desiccant into service while regenerating saturated desiccant in the same rotational cycle. It is intended to provide resin processors with a simpler, more compact alternative to conventional twin-tower dryers. According to the company, the rotating wheel system exhibits less variation in dewpoint than other wheel dryers because the manufacturer use a steel-link drive chain instead of a belt to drive the desiccant wheel. Air from the resin hopper that has been cooled and filtered goes through a blower; then, it is split into two streams, one passing through the moisture-removal section of the desiccant wheel, the other through the purge section, where desiccant that has already been regenerated is now cooled down. At the same time, a stream of hot air passing through the third section regenerates the desiccant in that section.