Patent ID: 7267230
Filing Date: 2007-09-11
Classification: B07B

Abstract:
1. A method for separating mixed particulate material into particles of at least two different specific gravities, comprising: providing at least one mixed particulate material separating apparatus including a separating chamber with an inlet and an outlet, a discharge tube having a first end coupled to the outlet of the separating chamber and a second end defining a discharge outlet and an angle of entry connection having a longitudinal axis, a discharge of the angle of entry connection and the longitudinal direction of the entry connection being angled upwardly at an incline with respect to a longitudinal axis of the separating chamber; creating a vacuum at the first end of the discharge tube which provides suction to the separating chamber to draw mixed particulate material into the separating chamber through the angle of entry connection in a linear direction toward a wall of the separating chamber so that the mixed particulate material has both upward and horizontal velocity components, the horizontal velocity component being sufficient to cause the mixed particulate matter to strike the wall of the separating chamber at a location opposite the entry connection; separating the mixed particulate material into a lower specific gravity and a higher specific gravity by the vacuum pulling the lower specific gravity material up and out of the mixed particulate material separating apparatus via the discharge tube, and allowing the higher specific gravity material to fall from the separating chamber; and producing a positive pressure at the second end of the discharge tube and discharging the lower specific gravity material through the discharge outlet.