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Commercial & Industrial Biomass Boiler Systems

Commercial & Industrial Biomass BoilerKWH boiler is a low temperature water boiler equipped with three-way exhaust gas circulation, fired with solid fuel or hot exhaust gas transferred to the combustion chamber from a pre-furnace.
The structure is of bent/welded type. Inside of boiler there are heated water chambers built in side walls and combustion tubes and forming two exhaust gas draft. The pre-furnace contains water grid made of steel profiles; the grid is also included into boiler’s water circulation.
The furnace chamber is accessible through the feeding door and the grid door; access is also possible through side walls opening which are simultaneously inlets for AZSD system.
Boiler’s construction allows for wide range of combustion air quantity adjustment. For this purpose the boiler is fitted with ash door together with adjustable flap, which enables adjustment of air coming under the boiler’s grid. Air may be also supplied through titled grid door built in boiler’s front wall.
The boiler works on the rule of natural air draft generated by a fuel.

Waste wood Combustion SetAutomated Wastewood Combustion Set – AZSD – is a modern device for burning of pulverized waste wood, wood chips, shavings, sawdust and bark of 1 ¼” granulation and humidity 30 – 50% for the AZSD-50 and AZSD- 180 and 40% – 60% for AZSD-250 to AZSD-1000. If dry fuel is used it must be humidified. The device can be coupled with a properly matched water – or steam – boiler for heating of houses, kilners, workshops, light industrial, multi-family housing, etc. Available models: rated at 170,000 btus, 340,000 btus, 612,000 btus, 850,000 btus, 1,700,000 btus and 4,000,000 btus of thermal power, and can heat from 3200 sf. to 75,000 sf. living area. Combustion process is controlled automatically. Each device is equipped with:

  • Controlling: Burning process is controlled with controller. Combustion process programs KWH boiler is a low temperature water boiler equipped with three-way exhaust gas circulation, fired with solid fuel or hot exhaust gas transferred to the combustion chamber from a pre-furnace.
    The structure is of bent/welded type. Inside of boiler there are heated water chambers built in side walls and combustion tubes and forming two exhaust gas draft. The pre-furnace contains water grid made of steel profiles; the grid is also included into boiler’s water circulation.
    The furnace chamber is accessible through the feeding door and the grid door; access is also possible through side walls opening which are simultaneously inlets for AZSD system.
    Boiler’s construction allows for wide range of combustion air quantity adjustment. For this purpose the boiler is fitted with ash door together with adjustable flap, which enables adjustment of air coming under the boiler’s grid. Air may be also supplied through titled grid door built in boiler’s front wall.
    The boiler works on the rule of natural air draft generated by a fuel.

    • Automated Waste wood Combustion Set – AZSD – is a modern device for burning of pulverized waste wood, wood chips, shavings, sawdust and bark of 1 ¼” granulation and humidity 30 – 50% for the AZSD-50 and AZSD- 180 and 40% – 60% for AZSD-250 to AZSD-1000. If dry fuel is used it must be humidified. The device can be coupled with a properly matched water – or steam – boiler for heating of houses, kilners, workshops, light industrial, multi-family housing, etc. Available models: rated at 170,000 btus, 340,000 btus, 612,000 btus, 850,000 btus, 1,700,000 btus and 4,000,000 btus of thermal power, and can heat from 3200 sf. to 75,000 sf. living area. Combustion process is controlled automatically. Each device is equipped with:
    • Controlling: Burning process is controlled with controller. Combustion process program setting is manual using hand wheels to main- and auxiliary burning. Controlling process depends on e.g. wood granulation, humidity of wood waste and heat demand.
    •  Temperature sensor: Water-temperature sensor is placed at the boiler’s outlet.When the demanded temperature is reached, the fuel is not given to pre-furnace.
    • Anti-fire device: AZSD is equipped with anti-fire device, which prevents it from backfire to the tank.
    • Rotational feeder: Feeder prevents AZSD from excess of fuel in pre-furnace.
    • Setting is manual using hand wheels to main and auxiliary burning. Controlling process depends on e.g. wood granulation, humidity of wood waste and heat demand.
    •  Temperature sensor: Water-temperature sensor is placed at the boiler’s outlet.When the demanded temperature is reached, the fuel is not given to pre-furnace.
    • Anti-fire device: AZSD is equipped with anti-fire device, which prevents it from backfire to the tank.
    • Rotational feeder: Feeder prevents AZSD from excess of fuel in pre-furnace.

    Combustion Diagram

    1. Hopper
    2. Fire Suppression Water Tank
    3. Rotary Valve Jam Sensor
    4. Temperature Sensor
    5. Rotary Valve
    6. Lower Feeding Auger
    7. Air Combustion Blower
    8. Access Hatch for Ash Removal
    9. Primary Air Path
    10. Side Access Hatch for Ash Removal
    11. Grates
    12. Fuel Overload Sensor
    13. Secondary Air Inlets
    14. Hopper Auger
    15. Motor
    Ready to start saving on your heating bill?
    Contact Maine Wood Furnaces today!