Concentrated pellet dust can be a killer to good boiler performance. Every load of bulk delivered pellets has a small percentage of fines. When they are mixed in evenly with pellets on their way into a boiler, everything is FINE. But when fines get concentrated–which most often happens inside the storage silo–a variety of control faults can occur that shut down your boiler. So if you see an excessive amount of fines in your boiler’s day bin, trouble may be looming.
Next time: More about Fines: causes and solutions