粉煤灰处理及资源利用  

Treatment and resource application of fly ash

作　　者：张汉鑫 李慧 谢珊珊 张力生 Zhang Hanxin;Li Hui;Xie Shanshan;Zhang Lisheng(Key Laboratory of Ministry of Education for Modern Metallurgy Technology,College of Metallurgy and Energy,North China University Of Science and Technology,Tangshan,Hebei,China)

机构地区：[1]华北理工大学冶金与能源学院现代冶金技术教育部重点实验室,河北唐山063009

出　　处：《矿产综合利用》2018年第5期25-27,共3页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金项目(51674120);河北省自然科学基金资助项目(E2016209163);河北省高等学校科学技术研究项目(BJ2017050)

摘　　要：粉煤灰是在煤燃烧后的烟气中收集的细灰,是燃煤电厂的主要固体废弃物。如何利用好粉煤灰,减少其对环境的污染等已成为我国经济建设的主要问题之一。文章阐述了粉煤灰的密度、粒径等物理性质,以及粉煤灰的主要组分。从环境保护和绿色可持续发展的角度,分别介绍了生产加入粉煤灰的混凝土和烧结砖等建筑材料,从粉煤灰中提取金属氧化物,处理废气废水和修复土壤等方面的应用。并同时针对结合我国粉煤灰的利用情况和政策现状,对粉煤灰其利用将来的利用和发展进行了讨论。Fly ash is fine ash collected in the flue gas after coal combustion and is the main solid waste of coal- fired power plants. How to make good use of fly ash and reduce its pollution to the environment has become one of the main problems in China＇s economic construction. The article describes the physical properties of fly ash, such as density and particle size, as well as the main components of fly ash. From the perspective of environmental protection and green sustainable development, the application of building materials such as concrete and sintered bricks for adding fly ash, extracting metal oxides from fly ash, treating waste gas wastewater and repairing soil are introduced. At the same time, combined with the current situation of the utilization of fly ash in China, its future utilization and development are discussed.

关 键 词：粉煤灰 固体废弃物 物化性质 发展资源利用 

分 类 号：TD989[矿业工程—选矿]