In recent years, WAN TAI Machinery has spared no effort to make innovations in the biomass drying industry, and developed a new type of cylinder biomass dryer with multi-layer sleeve structure, biomass dryer for exhaust gas recycling, and jet-flow biomass cylinder dryer at low temperature in response to customer requirements, solving in a energy-saving and environment-friendly manner the flammable and explosive risk by biomass dust. Three-cylinder energy-saving rotary technology can save energy by 40% under fully automatic intelligent control, reduce labor force, and improve efficiency. It is widely applied in drying of biomasses such as wood chip, sawdust, wood shavings, bark, fungus residue, bagasse, straw, husks, palm shreds, alfalfa, cassava, other combustible wastes, etc.