Based on flue gas purification and utilization system of 30 MVA high-titanium slag closed DC furnace,analyzed the merits and demerits of imported wet dusting process,given a dry dusting transformation scheme,indicated several key point and configuration of transforming practice,com-pared the operation effect between wet dusting system and dry dusting system.The result shows that flue gas purification and utilization system with dry dusting process could adapt the closed DC furnace,avoided the sewage and sludge processing,reduced the consumption of reagent,water and power,the plant running cost has been reduced too.Recovery dust was dry powder particles,could been blended into the furnace raw materials directly.Dust content of predicated flue gas less than 5 mg/m3,reached the ultra-low emission standard of the atmosphere.
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