... shell, rice straw wheat straw, corn straw, grass river reeds, palm husk, soybean stalk or husk, coffee husk, paddy straw, ... In his sawdust dryer machine system, wet material is input into hopper by screw feeder. Fuel furnace produces large volume of ... . After the processing of drying and pressing, the briquette is characterized by high density, smallin size, better combustion, capable as the ...