Colloid mill with rotatable material discharge filter - with non-clogging gradually widening discharge openings which retain millbodies

摘要

The mill includes a rotatable shaft upon which are mounted spaced milling elements. The filter is fixed to the shaft adjacent a milling member and defines a hollow space in communication with the material discharge outlet. The filter includes a circumferential filter element which may be mounted between opposed discs on the shaft. The openings widen in the direction of material discharge.