CFB锅炉掺烧气化细渣技术研究进展OA北大核心CSTPCD

Coal gasification slag has a large output and large stock.Conventional landfill and accumulation treatment not only takes up a lot of land resources,but also has serious risks of environmental pollution and safety.The composition,structure,and combustion characteristics of fine gasification slag were introduced,and the research progress of pretreatment methods for fine gasification slag such as residual carbon enrichment,dehydration,and drying was reviewed.The influence of mixed combustion of fine gasification slag on the combustion of circulating fluidized bed(CFB)boilers was analyzed from the aspects of moisture content,ash content,mixture ratio,and pollutant discharge of fine gasification slag.It is pointed out that mixed combustion of fine gasification slag in CFB boiler has significant environmental protection and economic benefits,which is one of the main methods for achieving reduced,harmless fine gasification slag and its resource utilization.