FILTER FOR CLEANING OF PLASTIC MELTS Russian patent published in 2009 - IPC B29C47/68 

FIELD: technological processes; filters.

SUBSTANCE: filter contains sieve disk installed between two plates that form the body equipped with section for replacement of filtering elements. Sieve disk is rotated with the help of power transmission ratchet drive. Disk has cavities installed on circumference and separated with bridges for placement of replaceable filtering elements. Melt passes through plates in the area of circular path. Melt channel expands in direction of filtering elements. Plates fully cover sieve disk. One of plates is interrupted with section of filtering elements replacement. Section of filtering elements replacement has size that exceeds size of single filtering element and is less or equal to size of two filtering elements.

EFFECT: under high pressures filter provides replacement of filtering elements at approximate persistence of pressure and has low cost.

7 cl, 1 dwg