长兴电厂粉煤灰理化性能的研究——长兴电厂粉煤灰综合利用对策研究之一  

Research on Physicochemical Characteristics of Fly Ash Drained off from Changxing Power Plant——One of Researchs on Comprehensive Utilization Countermeasures of Fly Ash Drained off from Changxing Power Plant (I)

作　　者：黎飞虎[1] 翟建平[1] 付晓茹[1] 盛广宏[1] 

机构地区：[1]南京大学环境工程系污染控制与资源化研究国家重点实验室,南京210093

出　　处：《粉煤灰综合利用》2005年第3期3-6,共4页Fly Ash Comprehensive Utilization

摘　　要：利用现代分析测试方法对长兴电厂粉煤灰的常量化学成分、主要物理性质、粒度分布,以及工艺性能等进行了系统的分析测试。试验结果表明,该粉煤灰的常量化学成分以SiO2与Al2O3总含量高为特征,CaO含量较低,属低钙粉煤灰;矿物相以莫来石为主,还有少量的α石英、磁铁矿及未燃尽炭(石墨)等,其中玻璃体的含量占绝对优势;而以二～三(或四)电场粉煤灰的活性较高。In this paper, the physicochemical characteristics including chemical composition, main physical (qualities), particle size distribution and technologic qualities of fly ash drained off from Changxing Power Plant, were (systematically) tested by modern analytic technology. The experimental results show that higher content of SiO_2 and Al_2O_3 is a character of chemical properties of Changxing fly ash; the ashes with a lower content of CaO and the ashes belong to low-Ca ash; and the main mineral phase are mullite, in addition a tiny of α-quartz, magnetite and residual carbon ((graphite)) can be discovered in fly ash which the glass pearls have a major content. The pozzolanicity of fly ashes drained off from the second to third (or fourth) power plant field is higher than others.

关 键 词：电厂粉煤灰 粉煤灰综合利用 对策研究 长兴电厂 理化性能 分析测试方法 化学成分 Al2O3 低钙粉煤灰 物理性质 粒度分布 工艺性能 试验结果 SiO2 α-石英 含量 CaO 莫来石 矿物相 磁铁矿 玻璃体 常量 石墨 燃尽 炭 

分 类 号：TQ536.4[化学工程—煤化学工程] X770.5[环境科学与工程—环境工程]