Process and apparatus for the tubular extrusion of a mixture of small plant parts with binders

摘要

The invention relates to a process and apparatus for the tubular extrusion of a mixture of small plant parts with binders, characterised in that the mixture is forced from a filling and pressing space (4) into a cross-sectionally smaller heating channel (12) by part of the overall extruding force, the parts of the mixture against the outer surfaces orienting themselves parallel to the outer surfaces and, on reaching final compression, forming a more highly compressed, statically bearing outer skin, the overall extruding force being formed by the friction of the outer and inner surfaces of the strand, the extrusion die (5), pressing at a constant rate, and the mandrel (6) running with or against the strand at a controlled, variable tensile or compressive rate. <IMAGE>