鼓泡床锅炉富氧焚烧含油污泥技术-环境工程学报.pdfVIP

第 11卷　 第7 期 环 境 工 程 学 报 Vol. 11,No.7 2 0 1 7 年 7 月 Chinese Journal of Environmental Engineering July 2 0 1 7 鼓泡床锅炉富氧焚烧含油污泥技术 海云龙,阎维平∗ 华北电力大学能源动力与机械工程学院,保定 071003 摘　 要　 提出了一种新型的含油污泥焚烧近零排放处理方式,即利用富氧燃烧技术焚烧含油污泥,油泥无需干化,并可以 回收烟气中的CO 直接用于油田驱油,可以实现 CO 的近零排放。 以日焚烧 200 t 含油污泥为研究对象,构建了鼓泡床富 2 2 氧燃烧含油污泥锅炉原则性热力系统,并分别从炉膛内密相区埋管、稀相区受热面和尾部对流受热面等方面进行了概念设 计,根据鼓泡床锅炉的设计原则并结合富氧燃烧技术特点,设计了一台富氧燃烧含油污泥鼓泡床锅炉。 详细介绍了鼓泡床 焚烧锅炉的设计参数、结构布置,结果表明:鼓泡床富氧焚烧含油污泥系统的锅炉效率可达 92.59% ,富氧燃烧工况下炉膛 内的换热量远远大于对流换热量。 关键词　 含油污泥;鼓泡床;富氧燃烧;锅炉设计 中图分类号　 X705　　 文献标识码　 A　　 文章编号　 1673-9108(2017)07-4313-07　　 DOI:10.12030/ j.cjee.201605072 Oxygen-enriched combustion technology of oil sludge in bubbling fluidized bed HAI Yunlong,YAN Weiping∗ School of Energy Power and Mechanical Engineering,North China Electric Power University,Baoding 071003,China Abstract　 A new type of oily sludge incineration with flue-gas near-zero emissions was put forward. This meth- od uses oxygen-enriched combustion technology to incinerate oily sludge where drying is not required,and CO2 can be recycled to be used in oil field flooding,achieving near-zero CO emissions. In this study,oil sludge (2002 -1 t ·d ) was incinerated via oxygen-enriched combustion in a fluidized bed,serving asfuel for a boiler. The sys- tem was constructed from a conceptual design considering the heating surfaces of dense segments,dilute seg- ments,and the tail section of the boiler. Considering the characteristics of oxygen-enriched combustion and the design principles of a fluidized bed boiler,an oxygen-enriched fluidized bed boiler was designed. The design pa- rameters and structural layout of thisfluidized bed boiler are shown in detail. Results indicated that the boiler ef- ficiency of oxygen-enriched combustion of oily sludge can reach 92.59%. Additionally,heat transfer in the fur- nace was much higher wit