... sawdust flash dryerNew energy-efficient dryer, adopting double drum, double pipe connection, it can dry the saw dust, rice husk, peanut shell ... homemade combustible gas as heating source, drum part and coiled pipe as the drying part. Drum part has two layers: inner ... in constant speed, we call it stir-frying heating. Coiled pipe secondarily uses the heating source, using draught fan negative pressure ...