"FGD系统描述PPT学习教案 - 湿法FGD工艺流程"

and SO2 Absorption The FGD system, also known as Flue Gas Desulfurization, is a crucial component in various industrial processes, particularly in power plants and combustion facilities. The primary function of the FGD system is to remove sulfur dioxide (SO2) and other harmful gases from flue gas emissions, which contributes to air pollution and environmental degradation. This process helps to mitigate the negative impacts of industrial activities on the environment and public health. The typical wet FGD process involves a series of steps, including gas treatment and SO2 absorption in the chimney, boiler dust removal, and air preheating. The process also includes the removal of ash, limestone preparation and slurry supply, absorption tower operation, gypsum dehydration, process water and discharge water treatment. The wet FGD process can be further broken down into the following components: 1) Flue Gas System 2) Limestone Preparation and Slurry Supply 3) Absorption Tower 4) Gypsum Dehydration 5) Process Water and Discharge Water A specific example of the FGD process is the MET IFO Flue Gas Desulfurization Process, which involves gas handling and SO2 absorption. This process includes gas treatment and SO2 absorption, boiler fuel air dust removal, air preheating, steam gas-liquid-gas circulation, flue gas-flue gas flue gas chimney absorber, SO2 absorber, lime or limestone powder warehouse, wet ball mill or digester, slurry storage tank, reactant preparation, gypsum dehydration, gypsum conveyor, belt filter, washing water, hydrocyclone, and reclaimed water tank. Overall, the FGD system plays a critical role in reducing harmful emissions in industrial processes, contributing to environmental protection and public health. It is essential for industries to adhere to FGD regulations and implement efficient FGD systems to minimize their environmental impact and ensure sustainable operations.