Circulating fluidized bed boiler
Water tube boilers

Circulating fluidized bed boiler

Bosch has achieved an internationally cutting-edge level in terms of circulating fluidized bed boiler on technical R&D platforms and standards. Existing circulating fluidized bed boiler products of Bosch include 6-220 t/h steam boilers and 14-174 MW for water boilers.

  • Volute cyclone separator improve the efficiency of the cyclone separator by 2-5%. Fuel is highly adaptable with high combustion efficiency
  • Reinjection system utilizes quantitative breeze systems and refined design for reinjecting air distribution system, making boiler running continuously, stable and safe
  • High efficiency separator system can increase limestone utilization rate in obtaining clean and environmentally friendly combustion
  • Compact furnace, even temperature field, ample heat exchange and high combustion efficiency
  • Optimal selection of separator injection angle, increasing separator efficiency as well as anti- abrasion capability
  • Furnace membrane wall uses bends avoidance structure and are jet plated with anti- abrasion materials, increasing the usable lifespan of membrane wall
  • Components of the boiler use 3D non-metal expansion joints and metal expansion joints, keep it clean and tidy
  • Innovative exterior design is aesthetically pleasing as well as practical
Further information

Circulating Fluidized Bed (CFB Series) Combustion technology utilises the fluidized bed principle in which crushed fuel is injected into the furnace or combustor and the fine combusted particles are elutriated out of the furnace with flue gas. The balance particles are then collected by solid separators and circulated back into the furnace.

There are no steam generation tubes immersed in the bed avoiding any erosion of bed tubes and their replacement due to wear and tear resulting in boiler stoppages.

The tall furnace design of CFB combustion boiler offers better space sorbent residence time for efficient combustion and SO2 capture and easier application of staged combustion techniques for NO2 control than AFBC generators.

  • Whole membrane wall structure
  • Water-cooled air-distribution plate and water-cooled air chamber
  • Volute cyclone separator
  • Non-mechanical self-balancing U-type fly ash return device
  • Embedded bell-type hood
  • Membrane wall bends avoidance structure
  • Low position secondary air
  • Under-bed hot air-fluidized ignition