Apparatus for disagglomerating material

Claim 1

Apparatus for disagglomerating material, comprising a first member having a cylindrical bore, an inlet at one end for material to be disagglomerated and a material outlet at the other end, and a second member disposed within said bore such that a plurality of peripheral ridges each extending substantially axially of one of the members are disposed closely adjacent the adjacent surface of the other member; one of the members being mounted so as to be rotatable with respect to the other, whereby material caused to pass along said bore is crossed by at least one of said ridges thereby to be subjected to disagglomerating action, said apparatus is adapted for mounting at the outlet end of a screw feed extruder, said first member, when the apparatus is so mounted, extending from the outlet end of the stator of the extruder to form a continuation thereof, and said second member being movably secured to the rotor of the extruder to be rotated thereby, said second member is polyganol in cross section, the junctions between the plane faces thereof constituting said ridges, said second member located within said bore by a locating collar, the circumscribing diameter of which is greater than that of said ridges, and means for movably securing said second member to said rotor to allow small axial and radial movements for accommodating axial misalignment between the axes of said first member and said rotor of the extruder.