Changzhou Ouna drying equipment Co., Ltd. the flash dryer drying chamber week to gas high speed, short staying time of material, effectively prevent wall sticking of materials and heat sensitive material deterioration. Gas solid two phase flow. The solid phase inertia is larger than the gas phase, and the relative velocity of the solid gas two phase is larger, and the mass transfer and heat transfer of the two phase is enhanced. Flash dryer is suitable for a wide range, large production capacity, good product quality, high efficiency, energy saving.