生活垃圾制备RDF工艺参数及其热特性研究  

Processing parameters and thermal characteristics of RDF based on municipal solid waste

作　　者：齐琪[1] 袁京[1] 李赟[1] 张地方 李国学[1] 

机构地区：[1]中国农业大学资源与环境学院,北京100093

出　　处：《中国环境科学》2017年第3期1051-1057,共7页China Environmental Science

基　　金：固废资源化利用与节能建材国家重点实验室开放课题资助(SWR-2014-005);国家自然科学基金资助项目(41275161)

摘　　要：采用生活垃圾生物干化产品作为原料,使用压型机及热重分析仪对垃圾衍生燃料(RDF)的成型工艺参数及热特性进行研究.结果表明,使用生活垃圾生物干化物料制备RDF时,最适含水率为30%,最适原料粒径为<1mm,最适成型压强为2MPa.在该制备参数下,制备的RDF跌落强度可达95%以上,成型效果良好,无体积膨胀现象.原料粒径1~2mm的RDF热值较高.原料粒径影响RDF热特性,原料粒径<1mm的RDF热特性明显不同于1~3mm的RDF.一级动力学方程对热重(TG)曲线拟合效果较好.利用生活垃圾经生物干化制备RDF具有较大潜力.A refuse derived fuel（RDF） molding machine and a Thermogravimetric Analyzer were used to investigate parameters in RDF molding processes and thermal characters of RDF products, respectively. In the process of preparing RDF using bio-drying products, the appropriate parameters of moisture content, particle size and molding pressure were 30%,〈 1mm and 2MPa, respectively. The range of falling strength of RDF was 95～100% under such condition, which meant high efficiency of molding without any volumetric expansion. The heat value of RDF was relative higher when particle size is 1～2mm than that of others. Thermal characteristics of RDF with the particle size of〈 1mm were remarkably different from those with the particle size of 1～3mm. The fitting of TG curve was great using first order kinetics equation. The results indicated a great potential of preparing RDF using municipal solid waste after bio-drying.

关 键 词：生活垃圾 生物干化 垃圾衍生燃料 成型 热特性 

分 类 号：X705[环境科学与工程—环境工程]