Equipment
Fuel Handling


    The Fuel Handling system is designed to convey coal and other fuels, such as wood chips and agricultural waste. Included is a twin-screw fuel-metering conveyor that is designed to transfer fuel from customer supplied hopper bottom bin to the fuel injector fan.
The system consists of:
  • Twin-screw auger
  • Gearbox motor
  • Fuel injector fan
    The feeder-and-distribution system utilizes a high-pressure blower to inject the fuel into the combustion chamber. This type of system has a wide application with respect to both, the fuel that can be handled and the boiler sizes to which they can be applied. This fuel handling system functions to vary the supply of solid fuel to the furnace and to provide even distribution on the chain grate. Variations in performance of the fuel injection fan, due to changes in fuel size are corrected by means of an external damper adjustment. The fuel feed ratio is directly related to the power demanded by the boiler control system. The use of a Variable Speed Drive (that powers the gear box) enables modulation the feed rate from a few pounds of fuel per minute to a few hundred pounds.