Drier handles three components

3 August 2006

Dri-Air Industries has introduced a new solution for drying, blending and conveying three different components. This system allows individual drying parameters for three components, such as virgin, regrind and colorant, and then mixes and conveys the components on demand, providing the highest part-to-part consistency and eliminating costly material waste.

According to Dri-Air, with many other systems the regrind and colorant materials are not dried, which can create part defects. If these materials are dried, they are often pre-blended and the entire mix is dried at the same temperature causing degradation of the polymer or ineffective drying. Often the materials require different temperatures since the colorant may have a different base material from the virgin resin and the regrind has already had one heat history.

Dri-Air adds that the space saving, compact design is combined onto one frame and includes its exclusive volumetric mixing (variable & fixed rate) augers placed under each hopper. Resins are dispensed into a common take-off box and conveyed with dry air therefore eliminating the risk of regaining any moisture.