Large pellet burners are thermal energy devices that use biomass pellets (such as compressed pell ets of sawdust, straw, rice husks, etc.) as fuel. They are widely used in heating, drying, and steam gen eration in industrial production. The core principle is to deliver pellet fuel into the combustion chamber through an automated control system to achieve efficient and clean combustion. We have two types: m anual ash removal and automatic ash removal.