兰炭燃烧特性及燃兰炭锅炉设计分析

Combustion characteristics of blue-coke and the analysis of blue-coke fired boiler design

将兰炭作为原煤的替代品可实现煤炭的清洁利用,是符合我国国情、防治大气污染、治理雾霾、改善环境质量的重要举措。神木兰炭的着火性能和燃尽性能明显优于无烟煤,低于原煤,而其结渣性能、灰熔融性能与原煤相比没有明显变化。可以通过简单的方法将燃煤锅炉改造成燃兰炭锅炉,以提高锅炉的出力,达到节能的效果。建议应重点研究兰炭的生产工艺,注重兰炭生产地的污染治理,避免恶化兰炭生产地的生态环境。

Clean utilization of coal can be achieved by substituting blue-coke for raw coal,which can meet our national conditions,prevention of air pollution,tackling of smog,and improvement of environmental quality.The ignition property and burnout behavior of Shenmu blue-coke are superior to those of anthracite but worse than those of its corresponding original coal.There are no significant changes in slagging characteristics,ash fusibility,comparing with original coal.The coal-fired boiler can be transformed to blue-coke fired boiler using simple methods to improve its output and save energy.The suggestions can be given that the research focus should be put on the preparation process of blue-coke and pollution control to avoid worsening the local ecoenvironment.