The triple pass dryer systems are based on the use of triple pass rotary drum dryer, this is the technology of choice in new engineered biomass industry, where they can usually produce some combination of more production, better consistency, better quality and lower emissions. The dryer system consists of several pieces of itons unique equipment including Triple Pass Rotary Drum Dryer, Biomass Burner, Primary Mega High Efficiency Collector, Flake Type Sealing Device, Refractory Lined Ducting and Recirculation System.