LOW-PRESSURE PNEUMATIC SPRAYER Russian patent published in 2003 - IPC

FIELD: spraying devices; chemical, food-processing, starch-syrup industries; spraying suspensions, pulps, solutions and other liquid materials. SUBSTANCE: proposed device has cylindrical housing with feed tube located along its axis and used for delivery of product to be dried into flow of high-temperature spraying agent moving in cylindrical space. Secured on axle running inside feed tube is turbine revolving under action of flow of spraying agent. Width of blades of said turbine decreases in way of motion of product and angle of attack increases in this direction. Processes of inter- phase heat and mass exchange are intensified due to intensification of dynamic interaction of phases, thus enhancing volumetric intensity of drying. EFFECT: enhanced efficiency. 1 dwg