WOA1 Parabolic vibratory impact mill
A parabolic vibratory impact mill is proposed which comprises a housing having an outer cone, an inner cone and a poweroperated vibrator. The shells of the cones have working surfaces in the form of parabolic generatrices: in the bottom part, the concavity of the parabolae is oriented toward the axis of the mill; in the top part, the convexity of the parabolae is oriented toward the axis of