CFBC脱硫灰渣的改性方法研究

Modification of CFBC Desulfurization Ash

以中石化茂名分公司动力厂的CFBC(循环流化床)脱硫灰渣为研究对象,探究了不同加水量、改性剂种类、粉磨时间(细度)、养护温度对脱硫灰渣的安定性及微观结构的影响。结果表明,影响脱硫灰渣中游离氧化钙消解效果的因素主次顺序为:加水量>改性剂种类>养护温度>粉磨时间;改性方式对脱硫灰渣微观结构的影响的主次顺序为:改性剂种类>养护温度>加水量>粉磨时间。

Aiming at CFBC （circulating fluidized bed desulfufization） ash in Maoming Petrochemical power plant, this paper explores several factors influencing the stability of the desulfurization ash and micmstructure, such as the different amount of water, grinding time （fine- ness）, modifiers, curing temperature. The results show that the factors affecting free calcium oxide desulfurization ash digestion in a descending order are as follows： the amount of water 〉 modifier species 〉 curing temperature 〉 grinding time, and the factors affecting desulfurization slag microstructure in a descending order are as follows： modifier species 〉 curing temperature 〉 the amount of water 〉 grinding.