Filter for use in e.g. plan sifter, has filter box with base plate and drop-through channel for product, and inserting filter frame covered with filter screen, where drop-through channel exhibits specific width

摘要

The filter has a filter box (1) with a base plate and a drop-through channel (6) for product, and an inserting filter frame (5) covered with a filter screen, where width of the drop-through channel is 1.5 times the width of a channel of the filter. The drop-through channel exhibits width that amounts up to 1.5 times the channel width of the filter. The filter box is made of foamable plastic. The inserting filter frame is made of metal. A partition wall (4') is bent inwardly.