摘要
城市生活垃圾作为燃料替代品是其资源化利用的可行途径。然而,地域性不同导致生活垃圾组成有差异,不同组成的垃圾其燃烧特性也不尽相同。本文以孝感城区生活垃圾中典型可燃组分为研究对象,采用热重分析仪模拟了垃圾中塑料、树叶以及两者混合物的燃烧过程,借助数学工具对其着火点、燃点和最大燃烧速度等因素进行了分析。结果显示:树叶与塑料的燃烧均由水分的挥发,挥发份的释放和燃烧,以及固定碳的燃烧三个阶段组成,最大燃烧速度在挥发份的释放和燃烧阶段;树叶与塑料混合燃烧过程中存在强烈的交互作用,两者混合物的燃烧特性不能看作单组份燃烧的简单相加;树叶加入量过大会降低混合物燃烧的热值。
It is a feasible way for urban waste to be reused as fuel. Different sources of waste have different compositions, which leads to different combustion characteristics. In this paper, the typical combustible components from Xiaogan city were taken to simulate the burning process during which plastic, leaves and the mixture of the above two by means of thermogravimetric analysis. The combustion characteristics, such as ignition point, burning point and maximum burning velocity, were discussed via mathematic method. Results showed that the combustion of leaves and plastic consisted of three stages, including being dried, volatile combustion and precipitation and fixed carbon combustion. The maximum burning velocity was at the stage of release and burning of volatile matter. There was a strong interaction between leaves and plastic in the combustion process, and the combustion characteristics of the mixture could not be added simply by the single one. Extra amount of leaf would reduce the burning calorific value.
出处
《湖北工程学院学报》
2017年第3期20-23,共4页
Journal of Hubei Engineering University
基金
湖北省大学生创业创新训练项目(201610528050)
关键词
垃圾
可燃组分
资源化
交互作用
waste
combustible component
reuse
interaction
