SPIRAL AIR DRYER Russian patent published in 2008 - IPC F26B17/10 

FIELD: drying.

SUBSTANCE: spiral air dryer comprises equidistant baffle provided with the spiral passage formed by the spiral baffle and tightly closed from above and from below with a lid and the bottom to define a vortex chamber provided with branch pipe for supplying fresh air tangentially to the turns of the spiral passage and branch pipe for supplying fresh drying agent. The cyclone is secured to the vortex chamber and is arranged coaxially to the vortex chamber. The sectional equidistant baffle is interposed between the bottom of the housing and lid and is provided with the pivoting gates. The branch pipe for supplying the wet material and heat-transfer agent is mounted tangentially to the spiral baffle. The branch pipe for discharging coarse fraction of material from the vortex chamber is parallel to the branch pipe for supplying wet material. The bottom of the housing is provided with a vibrator.

EFFECT: enhanced efficiency of drying.

2 dwg