The characteristics of internal circulating fluidized bed boiler

  The internal circulating fluidized bed boiler (ICFB) efficiently co-combusts industrial waste, biomass fuel and coal, provides steam or hot water, and sets new standards in limiting SOx and NOx generation. In addition to the characteristics of general CFB boiler, the internal CFB boiler also has the following special structure and characteristics:687Horizontal boiler

internal circulating fluidized bed bo687Horizontal boiler

  1. The internal CFB boiler has buried pipes, which can increase the heating area and regulate the temperature in the dense area.687Horizontal boiler

  2. The internal CFB boiler has a large area of air distribution bed, so that the boiler has more heat storage, which is conducive to fuel combustion and burnout, and provides a congenital condition for a wider variety of coal adaptability;687Horizontal boiler

  3. The internal CFB boiler has a large cross-sectional area of the furnace, the flow rate of flue gas is low, which can improve the primary combustion rate of fuel, reduce the wear of the furnace, reduce the power consumption and energy consumption;687Horizontal boiler

  4. The wind arch composed of secondary air can supply oxygen and disturbance on the one hand, and on the other hand, can lengthen the combustion time of coal, which is conducive to coal burnout;687Horizontal boiler

  5. Water-cooled membrane wall of the cyclone separator, effectively prevent high temperature coking and center cylinder bias, which improves the efficiency of the separator;687Horizontal boiler

  6. Porous and controllable feed return valve makes the feed return reliable, even if the feed return has a coke block, since there are a lot of feed back port, there is no need to immediately stop the furnace, the user can stop the furnace when it is available for them to clear the coke.687Horizontal boiler

  7. Tail flue gas duct patented technology: water cooling furnace roof and chevron water cooling flue gas duct, can effectively solve the roof and smoke wall collapse and leakage of ash or air, which improve the environment of the boiler room.687Horizontal boiler

  ZBG offers products, systems and solutions in energy and to industrial and commercial establishments around the world. Our products includes oil/gas boiler, biomass/coal boilers, municipal solid waste-fired boiler, waste heat recovery boiler and internal recirculation circulating fluidized bed boiler and external circulating fluidized bed boiler.687Horizontal boiler

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