... , sawdust ,straw, rice husk sawdust Drying machine: Product Introduction:Hot-air dryer adopted airflow wink-dry theory, dry intensity is big and ... content is stable, the impurities and pollution is small. This dryer is applicable to starch, rice flour, food, medicine, chemical ... floor space, investment and maintenance cost is low.5. This dryer hot air source is from oil burner, gas furnace, coal stove ...