220t/h锅炉燃烧低挥发分水煤浆结渣特性的试验研究  

Experimental Study on Slagging Characteristic of Low-volatile Coal Water Slurry in a 220t/h Boiler

作　　者：周俊虎[1] 张传名[1] 刘建忠[1] 陈瑶姬[1] 赵卫东[1] 张光学[1] 岑可法[1] 

机构地区：[1]能源洁净利用国家重点实验室(浙江大学),浙江省杭州市310027

出　　处：《中国电机工程学报》2009年第11期81-86,共6页Proceedings of the CSEE

基　　金：浙江省科技攻关计划项目(2004C36010)

摘　　要：低挥发分水煤浆比精煤水煤浆在价格上有明显的优势,在锅炉上燃用水煤浆除考虑着火和燃烧稳定性外,结渣特性是另一重要的影响锅炉安全经济运行的因素。文中就大型锅炉燃烧低挥发分水煤浆,利用硅碳棒进行结渣试验,采用单一结渣指标,通过对渣层厚度、沉积量和沉积速率的变化分析及X-射线衍射图谱和扫描电镜分析,模糊综合评判模型,获得低挥发分水煤浆燃烧结渣特性。结果表明,低挥发分水煤浆的结渣情况在可接受的范围内。Low-volatile coat water slurry （CWS） has an advantage over washed coal CWS in price obviously. When CWS is applied in a boiler, besides the stability of inflammation and combustion, slagging characteristic is another important factor to affect safety and economy in operation of the boiler. Low-volatile CWS was used in large-scale boilers and slagging experiment was processed using silicon carbide rods. This paper used coal ash analysis, changing tendency of slag thickness, mass and deposition rate, X-ray diffractometer （XRD） and scanning electron microscope （SEM）, a slagging characteristic decision model based on fuzzing mathematics to predict the slagging, and get the slagging characteristic of low-volatile CWS. The result indicates that the slagging of low-volatile CWS is in an acceptable extent.

关 键 词：低挥发分水煤浆 综合评判 结渣特性 

分 类 号：TQ534[化学工程—煤化学工程]