EXTRUDER

FIELD: agriculture; mixed fodder extrusion engineering. ^ SUBSTANCE: the invention presents an extruder intended for production of fodder mixture out of feed ingredients out of raw material of high humidity. The extruder contains a body cage with a matrix and an endless screw wit blades partitioned by compression gates formed by a washer and a ring, the latter of which on the end of the endless screw has a section with partial lobes and a section with solid lobes. The section with solid lobes is located after a section with partial lobes in direction to the matrix. The hydraulic radius of a cavity of each following compression gate increases in the same direction. In the upper part of the body over each section with partial lobes there is a union with a gate, and the surface of the body is coated with a layer of heat-conductive material, which is coated with layer of a heat-insulating material. Axial extent of each following compression gate in the direction to the matrix is decreasing. The invention is aimed at resource-saving performance of the process of extrusion and expansion of technological capabilities of the extruder. ^ EFFECT: the invention ensures resource-saving performance of the process of extrusion and expanded technological capacity of the extruder. ^ 1 dwg