城市垃圾典型组分燃烧特性研究

Study on Combustion Characteristics of Municipal Solid Waste

本文首先分析了垃圾燃烧存在的问题,再介绍垃圾燃烧特性的热重分析原理和燃烧特性参数的确定方法。对十种工况的垃圾燃烧进行分析,通过试验得出各组分的TGA和DTGA曲线及其燃烧特征参数。经研究发现混合组分垃圾的燃烧过程具有分步性,其活化能低于单组分垃圾,比单一组分垃圾更易燃烧;混合垃圾的燃烧特性并没有发生显著变化,可以近似用单组分垃圾的燃烧特性来估计,这一结论对于垃圾焚烧炉的设计有一定的指导意义。

This paper introduced the shortcomings of combustion of municipal solid waste,the principle of TGA analysis in the combustion characteristics of municipal solid waste and the method for determining the combustion parameters.The working conditions of combustion of municipal solid waste was analysed through experiments obtaining the componerts TGA,DTGA and the combustion characteristics parameters.The results shows that the burning process of the unclassified garbage displays multi-stage feature;the activation energy of the unclassified garbage is lower than that of the single-ingredient garbage and the unclassified garbage is more apt to burn than the single-ingredient garbage.Moreover,combustion characteristics of the unclassified garbage are similar to those of the single-ingredient garbage,so its combustion characteristics can be estimated by the combination of various single-ingredient garbage.This conclusion will be of certain reference value in the design of garbage incinerator.