METHOD OF SORTING GROUND MATERIALS AND DEVICE FOR REALIZATION OF THIS METHOD Russian patent published in 1999 - IPC

FIELD: flour industry; grading and final milling of tailings of grinding systems. SUBSTANCE: aeromixture is fed to sorting chamber and is divided on sifter into tail fraction and subsieve faction; air flow and fractions are discharged. Air flow is discharged from sorting chamber together with subsieve fractions; rate of air flow inside sorting chamber is maintained between 0.05 and 0.083 m/s and between 19 and 27 m/s inlet and outlet. Device for sorting ground products has housing where sorting chamber and fraction receivers are arranged. Fraction receivers terminate in branch pipes for discharge of subsieve fractions and tail fraction. Sorting chamber is provided with brush drum mounted horizontally; sifter 9 embracing half length of its circumference is secured under this drum. Air discharge branch pipe is combined with subsieve fraction discharge branch pipe. EFFECT: enhanced efficiency of sorting. 3 cl, 2 dwg