Depending on the layout of the site two or more covered conveyors transfer the manure to the fuel buffer hopper. The manure on the conveyors adds to the quantity in the buffer hopper increasing the time permitted to add fuel without impacting on the combustion process.
The conveyors are designed to transfer the manure cleanly without it becoming caked or building up over time.
Fuel Buffer Hopper
The fuel buffer hopper, mounted at the front of the combustion unit, is sized to ensure continuous operation. Fuel is transferred into the furnace using a metering screw system. The operation of this is controlled through a reduction gear-motor and panel mounted variable speed drive. The speed rate is dictated by the system PLC.