Lower sediment device of circulating fluidized bed boiler

The utility model provides a lower sediment device of circulating fluidized bed boiler, include: a scum pipe, lower sediment pipe, upper header and lower header that row's sediment interface that is used for being connected with row's cinder notch of boiler, be used for row sediment, the upper header is the transversal water tank of personally submitting ring shape with lower header, and the upper header is equipped with the delivery port, and lower header is equipped with the water inlet, the sediment pipe is established by the pipe box of two different pipe diameters and is formed together down, and both ends feed through with upper header, lower header respectively about it, arranging the sediment interface and being connected with the upper header, the scum pipe is connected with lower header. The utility model discloses a heat of sediment device in not only can the effective recycling lime -ash under the circulating fluidized bed boiler, it is red to avoid down the sediment pipe to burn. 本实用新型提出了种循环流化床锅炉