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	循环流化床锅炉飞灰残碳的生成及其处理
	李少华 ; 王启民 ; 肖显斌 ; 杨海瑞 ; LI Shao-hua ; WANG Qi-min ; XIAO Xian-bin
	2010-06-08 ; 2010-06-08
关键词	循环流化床锅炉 飞灰含碳量 低速流化床 静电分离 飞灰水活化团聚 circulating fluidized bed boiler, carbon content of fly ash,low speed circulating fluidized bed,electrostatic separation,flyash water activated agglomeration TK229.6
其他题名	Formation of Fly-ash Carbon Residue in a Circulating Fluidized Bed Boiler and Its Disposal
中文摘要	循环流化床燃烧技术因其众多的优点得到广泛应用,但是在运行中普遍存在着飞灰含碳量远远高于预期的问题。影响飞灰含碳量的主要因素包括:煤指标、煤的结构和焦炭反应活性、给煤粒径以及循环流化床的结构和其它运行参数等。目前,降低飞灰含碳量的方法有:飞灰再循环、加强二次风刚性和调整床压降等。实验表明,在低风速条件下,可以将飞灰中的残碳充分燃尽。另外,高压静电分离和飞灰水活化团聚也都为飞灰残碳的利用提供了新思路。; Circulating fluidized bed combustion techniques have been widely used in China due to its numerous merits.However,a universal problem in operation is that the carbon content of fly-ash is much higher than generally expected.The major factors influencing the carbon content of fly ash are: coal index,coal structure and coke reaction activity,fed-coal particle diameter and structure of the circulating fluidized bed as well as other operational parameters etc.At present,the methods for reducing fly-ash carbon content mainly include: fly ash recirculation,secondary air strength enhancement and pressure-drop adjustment for a circulating fluidized bed etc.The experiments performed by the authors indicate that under the condition of a low air speed,the carbon residue in fly ash can be fully burnt up.In addition,high voltage electrostatic separation and fly-ash water activated agglomeration can also provide a new approach for utilizing carbon residue in fly ash.; 国家自然科学基金资助项目(50406002)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/50402]
专题	清华大学
推荐引用方式 GB/T 7714	李少华,王启民,肖显斌,等. 循环流化床锅炉飞灰残碳的生成及其处理[J],2010, 2010.
APA	李少华.,王启民.,肖显斌.,杨海瑞.,LI Shao-hua.,...&XIAO Xian-bin.(2010).循环流化床锅炉飞灰残碳的生成及其处理..
MLA	李少华,et al."循环流化床锅炉飞灰残碳的生成及其处理".(2010).

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