| 摘要 |
Extrudate particles (H), in particular as a preliminary stage for pharmaceutical pellets, are produced by extruding a doughy mass in the form of a strand (G) into a gas stream (E), predrying the said mass in the said gas stream (E) and likewise using the said stream to break the mass. For extrusion, a lance (40) is used which extends through a process chamber (12) and bears extrusion dies (80) which open out transversely with respect to the general gas stream (E). A compressed-gas nozzle (96), which is intermittently fed with compressed air, is directed at the mouth region of each extrusion die (80). …<IMAGE>… |
