Airflow dryer is pulsed hot air dryer, also known as a hot air dryer pipe, the advantages of this dryer is directly heated, fast drying, folding installation, saving space. Airflow dryer is to allow the wet raw mixed with high-temperature air travel, and ultimately through the moisture separator separated from the feedstock. Dryer is widely used in food, feed, chemicals, pharmaceuticals, mining and other industries, drying equipment during operation as follows; after adding dryer in the pipe under the cloth copy board flip dehydrated wet material, the material in the dry uniformly dispersed within the machine full contact with the hot air to accelerate the drying heat and mass transfer. During the drying process, the material in the tilt plate and hot temperament copy with the role, as the dryer exhaust discharge valve star plus some finished products, air dryer works is wet granular material into the hot gas stream , contrast and flow, resulting in dry granular products, for open feed resources, reduce feeding costs, reduce environmental pollution with good results.