CIRCULATING FLUIDIZED BED COMBUSTION SYSTEM

摘要

Disclosed is a circulating fluidized-bed combustion system which has a top supporting structure to effectively correspond to an increase of a generation capacity and enlargement of a boiler and to allow reduction in manufacturing costs and utilization of a space by making the supporting structure compact. The circulating fluidized-bed combustion system of the present invention comprises: a number of pillars; short-direction horizontal supports supported by the pillars; long-direction horizontal supports supported by the pillars; a furnace suspended by the short-direction horizontal supports and the long-direction horizontal supports and in which a fuel is fluidized and combusted; a separator receiving flue gas and solid particles generated by the combustion of the fluidized fuel from the furnace and separating the flue gas and the solid particles from one another; and a duct providing a path for the flue gas discharged from the separator after separated from the solid particles, wherein the duct includes a vertical portion connected to the separator to allow a fluid flow and a horizontal portion extending in a direction parallel to a length direction of the short-direction horizontal supports, and all of the short-direction horizontal supports and long-direction horizontal supports are arranged below the horizontal portion of the duct.