SPOUTING LAYER DRIER Russian patent published in 2002 - IPC

FIELD: equipment drying and thermally treating dispersive materials used in chemical, food and branches of industry related to them. SUBSTANCE: spouting layer drier with fraction by fraction treatment of material has drying chamber housing insert placed uniaxially. Salient feature of this drier lies in that drying chamber includes preliminary drying chamber 2 and final drying chamber. Insert comes in the form of funnels 4, 5, 6 arranged coaxially whose upper bases are moved apart by different distances one relative to another with growth in height from central to peripheral funnel.. Peripheral funnel has smaller length and radial discharge branch pipes 7 communicating with central funnel 7 are located near base. Base of central funnel communicates with chamber 2 of preliminary drying of material with the use of circular slits 3 in its upper part. Funnels 4-6 are manufactured in the form of upper half of hyperboloid of revolution. EFFECT: intensified drying process, increased quality of dried product. 1 cl, 3 dwg