Based on the powder material of the drying process of the drying dryer of Jiangsu Ganshang Drying Engineering Co., Ltd., at the same time, under the influence of the exhaust gas, the container of the fine powder container catches the filter back to the outdoors. Dry gas-solid two-phase countercurrent contact, a powerful wave. The solid particles are suspended in a dry medium and have a large contact surface area, which is good in heat transfer, mass transfer, quantity and drying strength, and thermal efficiency. Because of the better adaptability to boiling and drying, various materials have smaller footprint, high productivity, high thermal efficiency, easy operation control, and reduced particle breakage compared with other dryers, and are now more widely used, especially in the pharmaceutical industry. Features 1. The fluidized bed has a circular structure to avoid dead ends. 2. The hopper is set to stir to avoid the formation of channeling when the wet materials are agglomerated and dried. 3. It adopts tipping and unloading, which is convenient and rapid, and can also design automatic feeding and discharging system according to requirements. 4, the equipment has a wider fluidization range, can deal with some particles that are too wet, sticky or widely distributed in the particle size range, the drying effect is remarkable. 5, the drying speed is fast, the temperature is uniform, the drying time of each batch is generally 20-30 minutes. 6. Closed negative pressure operation, the gas is filtered and the sealing is good. The whole equipment is easy to operate, easy to disassemble and easy to clean. It is an ideal equipment that meets the requirements of “GMPâ€.