PNEUMATIC DRIER-MIXER Russian patent published in 2007 - IPC F26B17/10 

FIELD: technique for drying of dispersion materials, in particular, drying equipment used in microbiological, food-processing, chemical and other branches of industry.

SUBSTANCE: pneumatic drier-mixer has spiral channel hermetically closed from the top and from the bottom by cover and bottom, respectively, said cover and bottom defining vortex chamber, inlet branch pipe for heat-carrier and branch pipes for additional feeding of heat-carrier, inlet branch pipe for feeding of wet product mixed with dispersed components which are delivered into spiral channel along parallel channels and into heat-carrier flow extending tangentially to spiral channel coils, and discharge branch pipe for gaseous suspension components, extending tangentially to spiral channel coils. Branch pipes for additional feeding of heat-carrier are positioned perpendicular to plane of symmetry of spiral channel defined by inclined covers. Partition positioned at leading end of component inlet portion is designed for separate drying of components. Number of spiral channel coils is within optimal range of from 4 to 6. Vibrator is fixed on cover. Optimal operating parameters of vibrator are vibration level ranging between 70 dB and 85 dB, vibration frequency ranging between 31.5 Hz and 125 Hz, and processing time of 5 s with time interval of 30 s.

EFFECT: increased efficiency of drying process.

3 dwg