PNEUMATIC WHIRLWIND DRYER Russian patent published in 2007 - IPC F26B17/10 

FIELD: chemical industry; microbiological industry; food-processing industry; other industries; production of the devices for drying of the dispersed materials.

SUBSTANCE: the invention is pertaining to the devices for drying of the dispersed materials and may be used in microbiological industry, food-processing industry, chemical industry and other industries. The technical result of the invention is the increased efficiency of the drying of the dispersed materials. It is attained by the fact, that in the pneumatic whirlwind dryer containing the spiral channel, which is from above and from below hermetically closed accordingly by the cover and the bottom with formation of the whirlpool chamber executed with the additional tangential gas-service pipe, the inlet and outlet fitting pipes for introduction of the gas suspension and the heat-transfer medium has the adjusting shutters. At that on the whirlpool chamber bottom there is the fixed vibrator, the optimal parameters of which operation are: the vibration level being in the range of 70...85 dB, the vibration frequency is in the range of 31.5... 125 Hz, the time of action - 5 seconds with the interval of 30 seconds.

EFFECT: the invention ensures the increased efficiency of the drying of the dispersed materials.

2 cl, 1 dwg