Patent ID: 7543769
Filing Date: 2009-06-09
Classification: B24C,Y02P

Abstract:
1. A blasting medium picking-apart device comprising: a hopper-shaped container having an upper opening through which a blasting medium is put in; at least one blade attached to a rotary shaft which is mounted along the central axis of the container, for applying a shear force to the blasting medium when the blade is rotated; at least one first shearing plate attached to an inner surface of the container for applying a shear force to the blasting medium between the at least one rotating blade and the at least one first shearing plate; an annular horizontal flange plate fixed to a lower opening of the container; a rotary plate which is attached to the rotary shaft, and is disposed opposite the horizontal flange plate with a predetermined gap therebetween; at least one second shearing plate attached to the rotary plate; and a rotation drive section for driving the at least one blade and the rotary plate for rotation via the rotary shaft.