Patent ID: 6805243
Filing Date: 2004-10-19
Classification: B01F,B03D

Abstract:
A flotation machine rotor comprising:a body portion defining an interior area adapted to communicate with a gas source; at least one rotor blade projecting radially outwardly from said body portion; at least one aperture defined by said body portion and in gaseous communication with said interior area, said aperture being positioned adjacent to said at least one rotor blade and being defined in-part by a lower peripheral edge, said body portion having a first section on one side of said aperture and a second section on another side of said aperture, said first section being contoured with a diameter continuously increasing in a direction towards said aperture, said second section being contoured with a diameter continuously increasing in a direction away from said aperture; and at least one lip projecting radially outwardly from said lower peripheral edge so that, during operation of said rotor, solid particles forming part of a solid/liquid slurry travel away from said body portion and in approximate alignment with said aperture so that gas flowing from said aperture creates bubbles in said slurry that entrain at least a portion of said solid particles.