循环流化床垃圾焚烧炉混烧羊毛脂废料试验研究

以生活垃圾和煤混烧的400 t/d循环流化床垃圾焚烧锅炉为依托,对某大型生物医药公司的羊毛脂废料进行混烧的工业试验,了解混烧该废料对垃圾焚烧炉燃烧稳定性、炉膛温度、锅炉尾部常规污染物排放及飞灰含碳量的影响,以研究羊毛脂废料代替燃煤作为垃圾发电辅助燃料的可行性。试验表明,随着羊毛脂废料掺混量的增加,煤的添加量随之下降,烟气中的烟尘浓度,CO和SO2含量以及飞灰含碳量均有所下降;NO含量随掺混量的增加而增加,N2O随掺混量的增加而减少;HCl含量受掺混量影响不明显。随床温升高NO排放增加,CO排放下降,SO2和HCl浓度基本不变。试验表明循环流化床垃圾焚烧锅炉对羊毛脂废料具有良好的适应性。

Experimental Study on Co-firing of Lanolin Waste and Municipal Solid Waste in a Circulating Fluidized Bed Incinerator

The objective of this work was to investigate the feasibility of utilizing lanolin waste as auxiliary fuel in a 400 t/d circulating fluidized bed(CFB) municipal solid waste incinerator(MSWI).The combustion stability,combustion efficiency and pollutant emissions were investigated during the co-firing of the MSW,coal and lanolin waste.The results show that the addition of lanolin waste leads to lower CO,N2O,SO2,particulate matter emissions and unburned carbon content in fly ash.The CFB combustion efficiency increases as the amount of lanolin waste adding from 0.7t/h to 1.8t/h.On the other hand,NO concentration increases with the amount of lanolin waste added and the variation of HCl content did not change remarkably.Raising furnace temperature causes increasing of NO emission and decreasing of CO emission.All gas emissions can meet the demands of the Chinese EPA standard.The study demonstrates the technical feasibility of lanolin waste as auxiliary fuel and CFB has a good adaptability.