POLYMER MELT FILTRATION DEVICE AND METHOD Russian patent published in 2020 - IPC B29C48/69 

FIELD: polymer materials.

SUBSTANCE: disclosed group of inventions relates to a polymer melt filtration device with an inlet valve, to a system comprising at least two said devices, as well as to method of filter plugs replacement. Device for polymer melt filtration comprises inlet and outlet valves. Proposed device comprises filtration tank accommodating cavity to be closed by cover to receive melt channel. In the filtering tank there are multiple filter plugs which are respectively formed by the filter holder and filtering stocking. Filter holder includes wall with holes, which sets inner space, which through outlet falls into collecting channel. Filtration stocking overlaps openings of filter holder. Melt channel adjoins inlet valve and can be connected by means of inlet valve to passage of fluid medium with inlet channel. Collecting channel adjoins the discharge valve and can be connected by means of the outlet valve to passage of fluid medium with the outlet channel. Cover fixes filter stockings on filter holders.

EFFECT: invention provides reduced time for servicing the device.

14 cl, 9 dwg