02 Widely used in biomass, non-metallic ore, chemical, environmental protection, feed, agriculture, forestry and other industries. Specialized in the drying of sawdust, sawdust, straw, shavings, bark, wood powder, rice husk, forage, oil palm silk, plant fiber, beer residue, tapioca residue, ginkgo biloba, marigold, Chinese herbal medicine, alfalfa powder, corn cob, vegetable powder, various crystals, non-metallic mineral powder, inorganic fertilizer and other residue materials. Hot air can be reused according to user conditions, and the thermal efficiency is as high as 80%, which is significantly higher than similar drying equipment. Working Principle: High temperature hot air enters the center cylinder with the wet material, rotates back, and flows along the middle annular channel. Again, this time, through the outer annular channel, to the outlet of the drying cylinder. The materials in each channel are conveyed under high temperature airflow pressure and dried in a suspended state. There are also blades in the channels to carry scattered materials. Tiny particles pass through the dryer at almost the same speed as the air flow. The wetter and heavier materials in the middle and outer annular channels fall from the material flow, but due to the rotation of the drying cylinder, they are brought back by the blades and returned to the airflow, constantly surrounded by the drying medium. As a result of this movement, the smaller pieces are quickly dried and discharged from the drying cylinder more quickly. Larger, wetter pieces stay in the drying drum for a longer time. In this way, the material can be dried more evenly. When hot air flows with the material, there will be a strong exchange of heat and mass. At the outlet of the drying cylinder, the temperature of the drying medium drops to 80-120°C.