Method and device for synergistically removing fine particles via wet-process flue gas desulfurization
A technology of wet flue gas desulfurization and fine particles, which is applied in the direction of combined devices, separation methods, chemical instruments and methods, etc., and can solve the problems of increasing equipment costs, taking away fine particles, uneven mixing of steam and flue gas containing fine particles, etc. problems, to achieve good results, save equipment investment and construction costs
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[0029] Taking the flue gas of a coal-fired boiler as the processing object, the flue gas volume is 1.0×10 5 N m 3 / h, the temperature of the original flue gas is 118°C, and the mass concentration of the flue dust at the inlet of the desulfurization tower is 70mg / Nm 3 , SO 2 Concentration 1747 mg / Nm 3 , with limestone slurry as the absorbent, the section of the clean flue gas uniform distributor 9 is divided into 16 pieces of equal area, and 3 pieces of flue partitions 11 are set at an angle of 30° to the flow direction of the flue gas, and the steam phase changes The amount of steam injected into the area is 0.04kg / Nm 3 ;After the flue gas is treated, the temperature of the flue gas at the chimney outlet is 49°C, and the mass concentration of the flue gas is 28mg / Nm 3 , to meet the emission concentration of smoke and dust stipulated in the "Emission Standard of Air Pollution for Thermal Power Plants" (GB13233-2011) less than 30mg / Nm 3 emission standard, SO 2 Concentratio...
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