INTERDIGITATING HELICAL BLADES AND BAFFLE FINGERS IN A ROTATING, SHEAR STIRRER

摘要

A mixing machine having spirally intermeshed assemblies of fixed baffles and rotating blades. The fixed baffles, at least, are of semi-cylindrical helical form and are each set on a crossbar so as to project in alternate semi-circular arrangement on opposite sides of the crossbar and each is in spaced radial relation to an adjacent blade of the rotor blade assembly. The free ends of both the baffles and rotor blades overlap the fixed adjacent ends of the baffles and rotor blades so that in their intermeshed arrangement, the rotor blades sweep through enclosed circular paths between adjacent baffles.