TY JOUR TI DETERMINATION OF THE WORKING AREA OF THE EDGE SIEVE OF GRAIN CRUSHER WITH INCREASED SEPARATING SURFACE KW hammer crusher KW air flow KW working units KW edge sieve JO Vestnik of Kazan State Agrarian University AU Ziganshin, B.G. AU Bulatov, S.Y. AU Mironov, K.E. AU Rukavishnikova, V.N. AU Shkilev, N.P. PY 2020 IS 15 PB Kazan state agrarian University