提意见：本人的中译英（镁法脱硫）？ the introduction of the magnesia gas desulfurization process during the present commercialized wet desulfurization technologies, magnesia gas desulfurization has very good potential, which is comparatively mature ,low-invested, simple-structured and safely operated, as well as able to induce secondary pollution and recycle using the desulfurizer, lead to low desulfurizing cost and bring certain economic benefits. (一)preparation of sulphuric acid the temperature of flue gas out of the boiler is almost over 140 degree. the flus gas is consisted of great deal of carbon dioxide, dust and sulfui dioxide, as well as hydrofluoric acid, hydrochloric acid and sulfur trioxid so on. (二)preparation of heptahydrate magnesium sulfate the process similar with the above just differs in the disposal of the desulfuration sobent .magnesium sulfite enters the bottom of the adsorbing tower, the slurry tank.air forced to supply to the slurry tank with air blow,oxidized to magnesium sulfate. the water containing magnesium sulfate is used continuously in the whole desulfuration, when the solution attains certain concentration ,it's pumped into the collecting tank and next to the impurities removal system. the sewage through removing impurities magnesium sulfate solution is concentrated to crystallize heptahydrate magnesium sulfate. the recycled heptahydrate magnesium sulfate is dryed to packing storage warehouse. the water seprated from the heptahydrate magnesium sulfate is transmitted to the desulfurization tower for recycling use.查看更多
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