锅炉飞灰含碳量与煤燃烧特性的相关性研究  

STUDY ON CORRELATIVITY BETWEEN UNBURNED CARBON IN FLY ASH OF BOILERS AND THE COMBUSTION PROPERTIES OF COAL

作　　者：赵虹[1] 张翔宇[1] 李培[1] 杨建国[1] 冯国华[1] 王立业 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027 [2]浙江浙能乐清发电有限责任公司,浙江乐清325609

出　　处：《热力发电》2011年第8期41-44,共4页Thermal Power Generation

摘　　要：燃煤特性是锅炉飞灰含碳量的重要影响因素之一。选择了8种典型发电用煤进行热分析(TGA)试验,并在1台超临界600 MW机组锅炉上进行试烧,利用相关分析及回归分析得到了热分析特征参数与飞灰含碳量的关系。试烧及热分析结果表明,热分析着火温度指数与飞灰含碳量相关性水平较低,而燃尽温度指数与飞灰含碳量高度相关,可以通过热分析试验并利用回归模型初步判断锅炉燃用新煤种的飞灰含碳量变化趋势。The properties of fuel coal are important factors affecting the unburned carbon content in fly ash of boilers. Eight typical coal sorts used for electric power generation have been selected, and test of thermogravimetric analysis （TGA） being carried out,and trial combustion in one boiler of supercritical 600 MW unit being conducted, the relationship between characteristic parameters of TGA and un- burned carbon content in fly ash being obtained by using the correlation analysis and the regression a- nalysis. Trial combustion and TGA show that the changing tendency of unburned carbon content in fly ash of new coal sort burned in the boiler can be premarily judged through TGA test and using the re- gression model.

关 键 词：超临界 600MW机组 锅炉 煤种 飞灰含碳量 热重分析 

分 类 号：TK16[动力工程及工程热物理—热能工程]