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Filtering device and filter extruder head containing the filtering device

  • Nov 24, 2025

This invention belongs to the technical field of filtration devices, and relates to a filtration device and a filter extruder head containing the filtration device: The filtration device has a filter screen formed by several filter groups evenly distributed on a substrate, each filter group is arranged with several filter holes spaced apart, and the outer contour of each filter group is a geometric shape; The filter extruder head has the filtration device on at least one side wall of a cylindrical or rectangular shell, the shell and the filtration device forming an internal filtration chamber, and a feed port or feed channel is provided on the shell wall and/or the top cover of the shell. An extrusion device is provided in the filtration chamber, and a waste storage chamber, a waste discharge port and a waste discharge valve are sequentially provided on the lower side of the shell. A heating device is provided inside or outside the shell wall. The advantages are: good filtration effect, can achieve waste removal without stopping the machine, and is suitable for various specifications and models of recycled plastic granulators.

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