Lime Dry Grinding Schemes Comparison of Lime/gypsum Wet Desulphurization Technology

The paper compares two dry grinding schemes-vertical type and horizontal type,with the example of one limestone dry grinding scheme of limestone-gypsum wet flue gas desulfurization,and presents the equipment operation principles,basic process,system configurations,arrangement descriptions for these two schemes.Through the comparison of the operation characteristics and economy of the two schemes,and the overall analysis and research to the process systems and practical running effects,this paper presents the respective advantages and disadvantages of the two schemes,and after comprehensive comparison concludes that vertical dry grinding scheme is more suitable for the requirements of large-scale pulverization by limestone-gypsum wet flue gas desulfurization in heat-engine plant.