AFBC Boiler

AFBC Boilers offer the most effective solution for process heat and power generation. They can burn various fuels with a combustion efficiency of over 85%, irrespective of ash content.

  • High efficiency
  • Fast response to load variation/fluctuation
  • Low on operating cost
  • Simple operation and quick start up
  • High reliability
  • Flexible on versatile fuels
  • Maximum fuel & Auxiallary power saving
  • Fuel: Indian /Imported Coal, Lignite, Rice Husk
  • Fuel: Washery Rejects, Petcoke, Dolachar


AFBC low maintenance design features

  • Water wall membrane type for maximum heat absorption and structural rigidity.
  • Four stage steam separation to ensure zero carryover.
  • Optimum velocity and pitch in economizer for better life of tubes.
  • Studded in-bed evaporator tubes are immersed in the bed to extract heat.
  • Welded and factory assembled PA and fuel nozzles.
  • High efficient fans to ensure optimal power consumption and minimum noise level.


Hopper Bottom (Fluid Bed) Salient Features

  • Reduced maintenance in the furnace as the combustor has no moving parts.
  • Optimum combustion due to uniform temperature distribution in the bed and agitating characteristics of the fluid bed.
  • Higher efficiency as a result of low excess air requirement.
  • Lower NOx and CO emissions.
  • Low SOx emission with limestone addition.
  • Low-temperature operation minimizes the biomass fuel ash agglomeration and fouling tendency.


Continuous slow draining of bedash aids:

  • Easy settling and disposal of large-sized particles, which hamper fluidization.
  • Maintaining alkali concentration below acceptable levels.
  • Avoiding accumulation of denser particles in bed in maintaining uniform bed density across the entire bed" under-bed / over-bed fuel feeding for proper fuel distribution.


AFBC is a versatile boiler offers simple operation and quick start up

  • Available in Bi-drum/ Single drum.
  • Suitable to generate saturated and super heated systems.
  • Suitable for cogeneration and captive power plants.
  • Underbed/ Overbed fuel feeding/ Bottom hopper design.
  • Low excess air requirement resulting in higher efficiency.
  • A secondary firing system is provided in the furnace to ensure optimal combustion resulting in minimum un-burnt fuel, reduced CO level in the flue gas, and improved efficiency.