EXPELLER Russian patent published in 2004 - IPC

FIELD: agrarian and industrial complex; equipment for extruding plant raw material. SUBSTANCE: the invention presents an expeller and is dealt with equipment for extruding plant raw materials. It is intended for usage in processing branches of agrarian and industrial complex. The expeller contains a cylindrical body and an endless screw. The output end of the endless screw has a washer making with the output end of the body a forming cavity surrounded by a cylindrical surface of the body. The washer surface facing the forming cavity is made with a constantly increasing diameter in a direction from the endless screw. The maximum diameter of the above mentioned surface of the washer is equal to the external diameter of the cylindrical body. The endless screw incorporates a heat exchanger made in the form of a through cavity concentric to the axis of the endless screw rod. The surface of the through cavity is made ribbed. EFFECT: the invention ensures increase of productivity of the expeller and decrease of time to achieve the operating mode at start-up. 3 dwg