How a Rotary Drum Dryer Works: Anatomy of a Biomass Dryer
Anatomy of a biomass rotary drum dryer: gas flow, drying stages, flights and residence time, riding rings and drive, fire risk, emissions, and controls.
Dryer Fire and Explosion Protection Under NFPA 660, 68, and 69
Fire and explosion protection inside a rotary drum dryer: fan-trip transients, purge and abort, O2 and CO placement, and isolation under NFPA 660, 68 and 69.
Single-Pass vs. Triple-Pass Rotary Dryers for Wood and Pellet Feedstock
Single-pass vs. triple-pass rotary dryers for wood chips, OSB strands, particleboard furnish and pellet feedstock: particle size, airflow, fire risk, controls.
Riding Rings, Trunnions, and Thrust Rollers: Supporting a Rotary Drum
How riding rings, trunnion rollers, and thrust rollers carry a heavy rotary drum: load sharing, contact stress, float, bearings, lubrication, and monitoring.
Rotary Dryer Flight (Lifter) Design and Residence Time
Rotary dryer flights and residence time: flight geometry, discharge angle, loading regimes, published correlations with their conditions, and sensing.
Controlling Dryer Outlet Moisture for Pellet and Particleboard Feedstock
Rotary dryer outlet moisture for pellet and particleboard feedstock: wet vs. dry basis, published targets, dead time, control strategies, sensing, PLC loops.