Actual Problems in Machine Building 2018 Vol. 5 No. 3-4

Actual Problems in Machine Building. Vol. 5. N 3-4. 2018 Technological Equipment, Machining Attachments and Instruments ____________________________________________________________________ 94 CALCULATION OF A FAN OF VIBRO-PNEUMATIC STONE SEPARATING MACHINE Perova N. V. , Senior Lecturer, e-mail: perova@corp.nstu.ru Rafikov U.I. , Master’s Degree student, e-mail: raul1994thebest@mail.ru Novosibirsk State Technical University, 20 Prospekt K. Marksa, Novosibirsk, 630073, Russian Federation Abstract The article provides a calculation for using them in design calculations of stone separators with aspiration. The analysis of the calculation of the fan for blowing the grain mixture on the existing working surface - the table of a vibration-rocking stone separating machine from the line of milling production - is proposed. The physico-mechanical characteristics of the grain mixture, which influence the degree of blowing of the particles, are determined. The dependences between the degree of blowing and the particle sizes are revealed. The influence of the grain size and density of the particles of the grain mixture on the air flow of the fan, and therefore on its power, is revealed. Keywords fan, grain mixture, productivity, power, particle size, calculation.