SPRAY DRIER WITH INERT HEAD Russian patent published in 2008 - IPC F26B3/12 

FIELD: heating.

SUBSTANCE: spray drier with inert head contains chamber with gas grid for inert objects reduced to pseudoliquated state, and multistage stop for material removal of inert objects designed as string system fixed throughout the chamber section at its inner wall. Strings of stop are mounted in horizontal planes throughout the section of conic extending part of case and rigidly fixed on its inner walls with rims. Strings can be fixed between finger contacts to form geometrically regular figures, e.g. triangles and polygons so that to provide uniform perforation and linearity of stop strength, or radiating to form conic surfaces with its apexes directed towards each other. Each rim in the centre contains disk with fixed strings. Sprayer is acoustic and contains case with in-built ultrasonic oscillator designed as nozzle and ring resonant cavity. Case is vertical linear bushing in upper part of which there is air nozzle mounted with its axis perpendicular to liquid nozzle. And case contains in-built rigid bushing with upper and lower flange plates with lower flange plate rigidly fixed in in-case groove. Bushing contains coaxial ring resonant cavity executed in the form of cup with conic surface. Cup is inserted in resonant cavity rod of diameter d. And its tail part includes locking disks designed as elastic petals connected to internal surface of bushing. Lower flange plate contains at least one nozzle mounted at the angle 20°÷40° to axis of resonator cavity. Axis of nozzle rests on circle in midsection of conic surface. Internal surface of bushing contains formed coaxial tapered and parallel holes.

EFFECT: higher drying output.

2 cl 4 dwg