高硫煤烟气湿法脱硫氧化空气风机设计技术经济分析

Techno-economic Analysis on Design of Oxidation Air Blowers for High Sulfur Coal Limestone Wet Flue Gas Desulfurization

基于石灰石-石膏湿法烟气脱硫化学反应机理,提出了强制氧化工艺的氧化空气风机参数计算模型。对可用于氧化空气风机选型的罗茨风机、多级离心鼓风机、单级高速离心鼓风机、空气悬浮鼓风机、磁悬浮鼓风机特性进行了比较。阐述了高硫煤烟气脱硫氧化空气供给技术,并对不同型式的氧化空气风机选型设计进行了技术经济性分析。对石灰石湿法烟气脱硫氧化空气系统设计、氧化空气风机选型设计具有指导意义。

Based on chemical reaction mechanism of limestone-gypsum wet flue gas desulfurization,the calculation models for oxidation air blower parameters for forced oxidation process were proposed.The characteristics of Roots blower,multi-stage centrifugal blower,single-stage high-speed centrifugal blower,air suspension blower and magnetic suspension blower that can be used for selection of oxidation air blower are compared.The oxidation air supply technology for high sulfur coal flue gas desulfurization is described,and the technical and economic analysis is made on the selection and design of different types of oxidation air blowers.It has guiding significance for the design of oxidation air system and the selection of oxidation air blowers for limestone wet flue gas desulfurization.