Pin mill

A disintegrating mill, comprising:

• a rotatable screen having an inside diameter,
• a rotor assembly further comprising a shaft defining an axis of rotation,
• a rotor disc defining a perimeter and having a first plurality of radially spaced apart circular arrays of projections emerging therefrom,
• at least one vane knife affixed to said perimeter of said rotor disc, said vane knife comprising a cutting edge, a pressure surface having a concave surface and facing toward said axis of rotation and a suction surface having a convex surface and facing opposite said pressure surface, and an angle of attack for developing suction for inward pulling of particles stuck in said screen, said vane knife comprising first and second end plates and a midplate connected by a spine member rigidly spacing apart said end plates and midplate,
• said rotor assembly residing within said inside diameter of said screen;
• a housing defining an interior and comprising a first plate having an aperture,
• a second plate, and
• a perimeter wall spanning between said first plate and said second plate, said perimeter wall further comprising an arcuate section and a gap;
• at least one drive spindle rotatably mounted therein,
• a door guide spanning between said first plate and said second plate of said housing, a door guide bar slidingly coupleable to said door guide;
• a door for closing said aperture in said housing, said door hingeably attached to an end of said door guide bar;
• and
• a stator having a second plurality of radially spaced apart circular arrays of projections emerging therefrom, said stator attached to said door so that with said door closed said first plurality of circular arrays radially alternate with said second plurality of projections.