FILTERING DEVICE FOR HIGH VISCOSITY FLUIDS Russian patent published in 2021 - IPC B29C48/691 B29C48/25 

FIELD: filtering devices.

SUBSTANCE: invention relates to a filtering device for highly viscous media, such as, in particular, molten plastic. The filtering device comprises between the front housing element and the rear housing element a rotationally mounted drum sieve (20') containing several sieve cavities (21.1'... 21.8'), while several adjacent sieve cavities (21.1',..., 21.8') are combined into at least one filter group (2', 4'), the flow through which can flow as a whole. For this, a closed blocking segment (23.1', 23.2') is provided on both sides next to the filter group (2', 4') on the drum sieve (2 '), which, when positioned in the corresponding blocking zone of the housing, is hermetically sealed on both sides of the drum sieve. (20') from the body elements. The size of the blocking zones in the housing is greater than or equal to the size of the sieve cavity (21.1'...21.8') together with the surrounding sealing strip.

EFFECT: invention provides an increase in the effective filtration area in a continuous filtering device, taking into account the problems of thermal decomposition of some polymer melts.

12 cl, 8 dwg