铁路垃圾衍生燃料燃烧特性分析

Combustion characteristics of railway compound refuse derived fuel

大量增加的铁路固体垃圾已成为日益严重的环境问题,将铁路固体垃圾中的可燃组分经过筛选、干燥、加压成型等工艺制成高热值的复合垃圾衍生燃料(C-RDF),在解决环境问题的同时也解决能源问题.本论文主要是对铁路固体垃圾制备成的C-RDF,在高温管式炉内进行燃烧特性研究.实验结果表明:①垃圾比例增加,燃烧过程中CO和NOx浓度增大;SO2浓度降低.②氧的扩散是控制反应的关键环节,氧浓度较大时,有利于降低污染物排放浓度.③采用无烟煤制备C-RDF时,应控制煤掺量,防止形成结焦.

The rapid growth of the railway solid waste has become an increasingly serious environmental problem. After the process of screening, drying and pressure molding, the combustible components in the railway solid waste can be made into the heat value compound refuse derived fuel （C-RDF） for combustion, which can resolve the environmental and energy problems. This paper studied the railway C-RDF combustion characteristics in the high-temperature tubular furnace. The results showed that： ①The increase of waste ratio can increase the CO and NO, concentration, but reduce SO2 concentration. ②The oxygen diffusion is the key to control procedure, and increasing the oxygen concentration is beneficial to reduce the pollutant emissions concentration. ③The coal ratio should be controlled in making the railway C-RDF, and the coke should be prohibited from the C-RDF combustion.