摘要
印染污泥热值较低,直接燃烧较为困难,需要添加辅助燃料进行混燃。通过对印染污泥与煤在循环流化床中混烧实验研究,发现印染污泥着火特性较差,启动时需将炉温提升至800℃以上,加入的污泥才能进行燃烧;污泥与煤在循环流化床中可以实现充分燃烧,温度在800~900℃之间均匀稳定,燃烧效率超过95%;混烧工况下烟气SO2含量高,在炉内加石灰石后脱硫效果显著,可以实现达标排放。
Dyeing sludge with low heat value is difficult to combust directly,so auxiliary fuel is required.Experiments on co-combustion of dyeing sludge and coal were made in a circulating fluidized bed and it was shown that ignition characteristics of dyeing sludge was bad.At start-up stage,the dyeing sludge added could not combust until the furnace temperature was higher than 800 ℃.When the furnace temperature was kept in the range of 800~900 ℃stably,sludge and coal could burn completely and the combustion efficiency was greater than 95%.In the co-combustion without desulphurization condition,the SO2 content in flue gas was high.After limestone was added,SO2 emission decreased remarkably and the flue gas could meet emission standards.
出处
《环境工程学报》
CAS
CSCD
北大核心
2011年第5期1147-1150,共4页
Chinese Journal of Environmental Engineering
基金
国家“863”高技术研究发展计划项目(2009AA05Z409)
山东省科学院博士基金项目(KJ200710)
关键词
印染污泥
混烧
燃烧效率
烟气排放
dyeing sludge
co-combustion
combustion efficiency
flue gas emissions
