DEVICE FOR PRODUCTION OF VARIETY FLOUR FROM CEREAL CROPS Russian patent published in 2000 - IPC

FIELD: equipment for production of variety flour from cereal crops. SUBSTANCE: device has bin 1, sieves 2, dehuller, air and magnetic separators 10, 11, roller unit 13, sifter 15 and channels 3, 8. Located before roller unit 13 is hammer crusher 11 whose body working surface is ribbed with transverse location of ribs. Rotor has rows of rectangular plates with cutting ribs on longitudinal front faces and suspended in planes perpendicular to shaft axis from rods secured to shaft parallel to its elements. Cutting edges of each next plate row are displaced relative to cutting edges of preceding row. Dehuller is made in form of two horizontal cylindrical chambers 4, 5 paired by elements and connected through window, and provided with screens in bottom part and inlet and outlet holes. Chamber 4 is lined from inside with hullers and provided with radial blades installed on shaft on longitudinal rows with inclination of working plane of each blade in direction of outlet of chamber 4 at angle of 40-60 deg to shaft element and lined with hullers on working plane. Blades of each next row are installed with displacement through half-step relative to preceding row and with interval between them in row equal to one and a half of blade width. Chamber 5 of dehuller has brush drum with rows of rigid brushes located longitudinally on it and are adjacent to surface of chamber 5 in its lower part and made with gaps in bristle forming grooves over helical lines. Sifter 15 is made in form of box with brush drum on shaft and a set of caprone sieves in bottom part located along drum and adjacent to brushes. Shaft of brush drum is installed for vertical displacement in box. EFFECT: higher yield of high-grade flour due to full separation of bran cover shells of grain in process of its dehulling, grinding and sifting by grades and higher productivity of device. 5 cl, 11 dwg