TWO-STAGE EXTRUDER Russian patent published in 2005 - IPC

FIELD: agrarian-industrial complex.

SUBSTANCE: invention relates to equipment for extruding plant materials and it can be used in processing branches of agrarian-industrial complex. Proposed extruder has screw arranged in screw housing, with charging device at beginning and head with die at end. Screw drive is found from side of charging device. Screw is limited by intermediate die, after which second-stage screw is placed in screw housing. Second-stage screw is provided with drive from head side. Intermediate die is made in form of two plates with identical spinnerets. Fixed plate is installed in housing, being fixed by key and provided with pin. Movable plate is installed on pin and is provided with handle fitted in slot. Turning of movable plate relative to fixed plate is effected by means of handle. At least one hole is made in screw housing direct after intermediate die.

EFFECT: enlarged operating capabilities of extruder.

2 dwg