Active alumina ball, also known as activated alumina, is white spherical porous particles with particle size uniformity and smooth surface; has mechanical strength, moisture absorption, not swelling after water and does not crack to maintain the status quo; non-toxic, odorless, Do not dissolve in water and ethanol; activated alumina ball has a large surface area and good adsorption properties, to fluoride has a strong adsorption, mainly for high fluoride in drinking water; activated alumina ball has a good pressure resistance, wear resistance and heat resistance, is widely used as a highly efficient adsorbent, desiccant and a variety of reaction catalyst carrier. No.2 Application of activated alumina ball In a certain operating and regeneration conditions,Active alumina ball desiccant has drying depth of up to -40 degrees below the dew point, is a trace of water depth of the desiccant efficient, single molecule adsorption layer of net heat, So very suitable for non-thermal regeneration device.