Desulfurization process of flue gas or waste gas by using external regenerative cycle magnesium sulfate method
A technology of magnesium sulfite and desulfurization process, applied in the field of flue gas desulfurization process, can solve the problems of large recovery system, low efficiency, consumption of supplementary water, etc., and achieve obvious environmental benefits, obvious economic advantages, and reduced power consumption
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[0049] As shown in the process flow chart: the sulfur-containing flue gas of the boiler after dust removal is sent to the desulfurization absorption tower 1 by the induced draft fan, and the absorption liquid sprayed from the lower spray 3 and the upper spray 4 is countercurrently contacted to absorb desulfurization, and after demisting After demisting by device 5, it is emptied through the chimney. The absorption liquid in the liquid storage section at the bottom of the tower automatically flows into the absorption liquid storage tank outside the tower through the pipeline 13, part of the absorption liquid is pumped by the circulating pump through the pipeline 14 into the lower layer of the absorption tower for desulfurization and absorption, and part of the absorption liquid is passed through the regeneration pump Line 15 pumps into static mixer 8 . The magnesia powder as desulfurizer is sent from the magnesia storage tank into the magnesia slurry configuration tank 9 to mix...
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