The invention discloses a device and a method realizing synergic effects of
waste heat utilization, desulfurization
wastewater zero-emission and
smoke plume removal, the device comprises a boiler, anair preheater, a dust remover, a desulfurization
tower and a
chimney which are sequentially connected through a pipeline, a
wastewater sedimentation tank, a
wastewater concentration
tower and a wastewater flashing
tower simultaneously are connected to corresponding equipment in the device, a high-temperature gas required in the working process of the wastewater flashing tower and the wastewater concentration tower is taken from high-temperature
flue gas during the operation of the device; and generated gases are sent into the dust remover for dust removal circulation. An
acoustic wave agglomeration device and a
demister are disposed in a connecting
pipe between the desulfurization tower and the
chimney. The method comprises the steps of concentrating and flashing the high temperature fluegas in the process of operation of the desulfurization wastewater utilization device, and finally feeding the concentrated and flashed gas to the device for circulation, thereby achieving
zero emission, discharged
smoke plume can be reduced by use of synergic effects of the reduced
flue gas temperature, the
acoustic wave agglomeration device and the
demister, and the goal of energy saving and
environmental protection, wastewater zero-emission and
exhaust emission reduction can be comprehensively realized.