湿法烟气脱硫石膏品质影响因素及应对策略探析

Influence factors and countermeasures on the FGD gypsum quality

石灰石-石膏湿法烟气脱硫技术是国内燃煤电厂应用最广泛的烟气脱硫技术,其副产物脱硫石膏的综合利用对节约资源、保护环境具有重要意义。在电厂实际运行过程中,脱硫石膏的品质具有很强的波动性,成为限制其资源化利用的关键。通过探讨化学物质、运行条件和系统设备对脱硫石膏品质的影响,为改善和稳定脱硫石膏品质提供参考。

Limestone- gypsum wet flue gas desulfurization technology was the most widely used flue gas desulfurization technology in domestic coal- fired power plants. The comprehensive utilization of the by- product desulfurization gypsum had significant influence on resource saving and environmental protection. In the process of power plant operation,the desulfurization gypsum quality varied much,which limited its resource utilization. The influence of chemicals,operation conditions,and system equipments on the desulfurization gypsum quality was discussed in this paper,aiming to provide reference for improving and stabilizing the desulfurization gypsum quality.