The invention relates to a device
system for treating desulfurized
wastewater by utilizing the fume
waste heat of a power
plant. The device
system comprises an
inert particle
drying chamber, an air supply device, a feed device and a gas-
solid separation device; the desulfurized
wastewater of a power
plant is pressurized into a liquid
distributor through the feed device, is uniformly distributed ona
fluidized bed, is sprayed and coated to the surface of
inert particles, and performs heat and
mass transfer with heat fume blowing from the bottom and side part of the
inert particle
drying chamberto remove
moisture; after a
solid material in the desulfurized
wastewater is collided and falls down, partial residue-containing gas is emitted out and recycled by the power
plant, and partial residue-containing gas is mixed with the heat fume to cyclically enter the inert particle
drying chamber. The device
system solves the defects of large floor area, complicated operation, low reliability, not remarkable economical efficiency and the like of a traditional wastewater treatment device, fume
waste heat of a power plant can be reasonably recycled for the second time, and the drying performance and reliability of the
fluidized bed can be improved.