灰分变化对城市固体垃圾燃烧过程的影响  

Influence of Ash Content on Burning Process of Municipal Solid Waste

作　　者：梁立刚[1] 孙锐[1] 吴少华[1] 代魁[1] 刘翔[1] 姚娜[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《动力工程》2008年第2期292-296,共5页Power Engineering

基　　金：国家自然科学基金资助项目(50406014);2005年度教育部新世纪优秀人才支持计划基金资助项目(NCET-05-0336)

摘　　要：为了更好地了解层燃垃圾焚烧炉的燃烧过程,建立了固定床垃圾焚烧层燃炉热态试验台.模拟的城市固体垃圾由蔬菜、纸板和细沙按一定的比例组成.通过物料中灰分含量的变化,对固定床层内温度、火焰传播速度、气氛浓度和床层重量变化进行了实验研究.结果表明:随着灰分含量的增加,物料燃烧的速度和火焰锋面的传播速度一直是降低的;CO2、CO的平均排放速度减小;NO的平均排放速度先增大后降低.An experimental rig with a fixed-bed reactor has been established for further revealing the burning features of munieipal solid waste （MSW） ineinerator. Simulated MSWs eonsist proportionally of vegetables, paper eards and sands. The influenee of ash eontent on parameters sueh as the temperature inside the bed, the flame propagation speed, gas eoneentrations and the bed weight, has been investigated. Results show, that with inereasing ash eontent, both the burning rate of materials and the spread velocity of flame front deereases, with a reduetion of average emission rates of CO2 and CO; while the average emission rates of NO inereases at first and deereases later on.

关 键 词：环境科学 固体垃圾 固定床 焚烧炉 烟气浓度 

分 类 号：X705[环境科学与工程—环境工程]