【摘要】 在分析循环流化床灰渣特性的基础上 ,综述了国内外循环流化床灰渣的综合利用最新进展。一般由于底渣含炭量低 ,且具备一定的水硬活性 ,可以直接用作制造水泥或建筑材料的原料 ;而飞灰含炭量高 ,以及水硬活性不理想 ,继而开发了飞灰造粒回燃、飞灰直接返送和水化后返送脱硫 ,用作水泥的原料和土壤改良剂等。更多还原

【Abstract】 On the basis of analyzing the characteristics of circulating fluidized bed (CFB) ash residue a broad overview is given of the recent advances both at home and abroad in the comprehensive utilization of CFB fly ash. Owing to its low carbon content and the presence of a certain hydraulic activity the CFB ash residue can be used directly for the fabrication of cement or building materials. However, the high carbon content and poor hydraulic activity of the fly ash make it necessary to develop some relevant technologies prior to using it. The latter include the pelleting of fly ash for its return burning, the direct sending back of fly ash, and its sending back for desulfurization following its hydration, its use as a raw material for the manufacture of cement and also as soil ameliorative agents, etc.更多还原