Preheater for pre-crosslinked or non-crosslinked thermosetting plastic powders or granules during product manufacture has a controlled heater and mixer

摘要

The preheater(01) has an open or closed loop controllable heater and a mixer for uniform homogenization of the materials(06). Preferred Features: Mixing is effected by a stirrer(03) with at least one heated blade(04) which may include openings through which material passes. The blade is spiral shaped and rotates at 30rev/min with its axis at 45[deg] to the vertical. A sensor on the preheater measures material temperature.