DRYER WITH PASSIVE NOZZLE Russian patent published in 2008 - IPC F26B17/00 

FIELD: mechanic engineering.

SUBSTANCE: invention relates to the technique of disperse materials drying and can be used in microbiological, food, chemical and other industries. Dryer with passive nozzle is enclosed into body combined with gas-distributing lattice and injector for material supply, inert bodies and heated chamber. Pipe with radial holes and expanding nozzle is connected to the lower part of heated chamber. Expanding nozzle is connected to gas-distributing lattice to supply additional coolant. Meanwhile, heated chamber is in conical shape and coolant is removed to trapping system consisting of acoustic unit, cyclone and sleeve filter. Injectors are acoustic and include resonator in the shape of at least one spherical void located in the end wall of the body. End wall is directed to distributing head and spherical void is connected with clearance by means of calibrated hole. Clearance is located between vertical hole in end wall of the body and distributing head rod. At the point of clearance section perpendicular to rod axis its cross-section is annular and distributing head is in the shape of the body with lid represented by flattened cones joint by large foundations. There is a collector in the shape of cylindrical void with annular channel resulting from a combination of external cylindrical surface of hollow rod and coaxial holes with similar diameters made in lid and body of distributing head respectively. Distributing head body is provided with at least, three circular channels for solution discharge being perpendicular to rod axis. Edge of hole is located on conical surface of distributing head lid and pitch angle of lid determines rooted angle of sprayed solution jet.

EFFECT: improvement of drying efficiency.

2 cl, 2 dwg