Cyclone separator is a device that uses centrifugal force to separate solid particles or droplets in the gas flow. It is suitable for purifying non viscous, non fiber dry dust greater than 10 microns. It is a purification equipment with simple structure, convenient operation, high temperature resistance and low equipment cost, but with high resistance (80 ~ 160 mm water column). Cyclone separators are widely used in milk powder, powdered food, food additives, medicine, fine chemicals and other industries. Installed in the rear section of drying equipment, they can effectively recover the solid particles contained in the tail gas.