The invention relates to a dividing wall
rotary kiln device for
flue gas
dehydration. The dividing wall
rotary kiln device comprises loading equipment, a charging bin, a conveyor, a
rotary kiln,
waste heat generating equipment and a spare unloading bin, wherein the rotary
kiln is a dividing wall rotary
kiln, and is composed of an outer ring and an inner ring which are coaxially mounted; a ring-shaped material channel is arranged between the inner ring and the outer ring; the ring-shaped material channel is provided with
refractory material support; and a furnace
hearth is arranged in the center of the inner ring. The furnace
hearth is connected with the
waste heat generating equipment by a
kiln tail cover. The loading equipment is communicated with the ring-shaped material channel by the loading bin, the conveyor and a charging ring; the ring-shaped material channel is connected with the spare unloading bin by a
discharge ring. A wet
flue gas inlet is connected with a
flue gas pipeline; a gas outlet is divided into two paths, one path is connected with a dry
flue gas exhaustion
system, and the other path is connected with a condenser; and connecting pipelines are provided with valves respectively. According to the dividing wall rotary kiln device,
lime is used as a dryer, and the ring-shaped material channel of the dividing wall rotary kiln is used for
drying and dehydrating the industrial
flue gas, so that the
flue gas diffusion capacity is improved in a facilitated mode, the
acid rain and
atmospheric contamination is reduced, and the dwelling and
living environment of people is improved.