RUBBING MACHINE Russian patent published in 2005 - IPC

FIELD: cleaning and concentration of grain material; glass sand dressing.

SUBSTANCE: proposed rubbing machine contains chamber with suction branch pipe, working member in form of rotor with projections connected with shaft which is connected by clutch with electric drive, and stator with projections on upper surface rigidly installed on bottom of chamber coaxially with rotor. Chamber is made cylindrical and it contains deflector with ports on inner side walls. Rotor is essentially working wheel with blades in central part, and stator is made in form of plate with outer radius equal to inner radius of chamber, and inner radius exceeding outer radius of rotor attachment nut and equal to radius of suction branch pipe. Projections of rotor and stator are made ring coaxial, in number of two projections on rotor and stator. They are divided by through radial channels into equal segments. Difference between outer and inner radii of ring projections of rotor is constant, and that of stator, is constant and equal to difference between outer and inner radii of ring projections of rotor. Centers of cross sections of ring projections of rotor and stator are displaced relative to each other.

EFFECT: improved efficiency of rubbing off films from grain material surfaces, reliability of working members of rubbing machines, simplified operation and maintenance.

2 cl, 3 dwg