EXTRUDER FOR PREPARATION OF FODDER MASS FROM SHREDDED STRAW Russian patent published in 1994 - IPC

FIELD: agricultural engineering. SUBSTANCE: extruder comprises loading device, drive, casing with pressing auger inside consisting of a set of sections with tapered closing devices therebetween. Located opposite said closing devices with a provision for moving and being fixed in radial direction are looseners in the form of rods with two wedge-like surfaces. As straw gets into the space between the tapered surface of closing device and the inner surface of the casing, the material is intensively compressed volumetrically, heated and acquires a tendency to stick to the surface of the closing device. But this is countered by the loosener whose wedge-like surface adjoins loosely the surface of the closing device. EFFECT: improved design. 3 dwg