... dry biomass light materials such as straw,sawdust ect The air drier is mainly to dry some powdered and light materials ... , such as sawdust,straw,grain, stalk and so on. The Air drier is consisted with hot-wind stove ,screw feeders,buffer ... is from 0.2t-0.6ton. The Air dryer working process is that the air flow is formed through the negative pressure of ...