The Circulating fluidized bed boiler have structure of the furnace body: water pipe type, boiler one drum. The furnace is equipped with water heat recovery and hot wind heater. Dust filtration systems include multi-stage cyclones and water injection systems (or other advanced dust filtration systems such as bag filters or electrostatic filters). Automatic variable speed control system with variable frequency drive (or PLC-Scada automatic control system).

Gas or liquid fuel boiler means a boiler using DO, FO, LPG, CNG, BIOGAS as fuel.