MULTI-ROLL EXTRUDER WITH SELF-CLEANING FURNISH ROLLS Russian patent published in 2017 - IPC B29C47/40 B29C47/08 

FIELD: construction.

SUBSTANCE: invention relates to the multi-roll extruder and can be used in various industries. In the multi-roll extruder each furnish roll is separated with a gap from the hole wall for processing the flowable material at least on the part of the technological length of the extruder with the crest of one of its taps. The gap is formed between the crest of its other tap and the hole wall. The furnish rolls are offset from one another at an angle. Each furnish roll located between two furnish rolls is a flowable covering material on its side surfaces between its crests of at least one rotary position by means of crests of the adjacent furnish rolls forming a gap. The side surfaces of at least one rotary position the furnish roll are re-cleaned from the flowable material by means of the crests of the both adjacent furnish rolls separated with a gap from the hole wall.

EFFECT: invention provides improved mixing efficiency, homogenization and dispersion.

7 cl, 3 dwg