DISCHARGE HEAD OF FEED EXTRUDER Russian patent published in 2005 - IPC

FIELD: agricultural engineering, in particular, equipment for preparing of feeds by extruding cereal grains.

SUBSTANCE: discharge head is presented in five embodiments. First most simple embodiment has housing with two internal opposite conical surfaces. Conical left-handed thread nut is positioned at one side in spaced relation with respect to conical surfaces and conical bushing with external right-handed thread is positioned at other side, said nut being fixed on extruder screw shaft. Conical bushing is engaged with thread on cylindrical projection of conical nut and is locked by means of lock nut and locking washer therebetween. Cutting knives are protruding beyond head housing. Upon passage of product under process through two conical annular opposite gaps, screw end is self-centered on said mass. Other embodiments of discharge head, from second to fifth, are modifications of first embodiment. Discharge head of such construction may be used in extruders of any power and modification.

EFFECT: increased efficiency and high operational capabilities.

5 cl, 8 dwg