First, the working principle of: 

 Wet material into a mass or thin strips into the drying room, hot air from the tangential direction into the drying chamber by the distributor, and high-speed rotating airflow was upward movement. In crushing, rotary flow together, so that the material is broken, thinning, also carried out pre-drying, and then with the flow spiral. Rotary air greatly enhanced heat transfer, mass transfer process. Pre-dried material by the host, and finally by the cyclone separation equipment, the material and air separation. Which, due to large and small particle radius of gyration is small, large turning radius of the wet particles, so the distribution pipe through the top of the host material out of the small particles, and large particulate materials were turned back again crushed and dry. Exchange allocation by size of pipe diameter, particle size can be controlled product to meet the needs. 
 To maintain the flow of air under the conical bottom of the faster slow, the bottom of the larger particles to be suspended, to avoid sedimentation and clogging. The wall at a higher flow velocity not only crushing, heat transfer, mass transfer effects, and the role of a sweeping wall can reduce the sticky wall phenomenon. 

 Second, the main features: 

 Rake structure, increases the surface area of materials, dry instantaneous speed can be cake-like, paste drying into a powder. Compact, small footprint.