DRYER Russian patent published in 2002 - IPC

FIELD: chemical, food-processing, pharmaceutical and other branches of industry. SUBSTANCE: dryer has nozzles arranged tangentially with respect to inner tube surface. Axially aligned gaps are communicated through perforations in outer tube. Nozzles are inclined along helical tray at an angle corresponding to inclination angle of tray helical line and arranged in its lower part at the level of working surface. Dryer provides drying of wet large- sized and granular materials. EFFECT: reduced power consumption and improved quality of dried product. 2 cl, 2 dwg