张家宝,王泉海,卢啸风,李建波,何自聪,高新,邹兴东

• 1:低品位能源利用技术及系统教育部重点实验室(重庆大学)

摘要(Abstract)：

在小型循环流化床(CFB)试验台进行了准东褐煤与柳枝稷混合燃料的掺烧试验,研究了底渣、飞灰和受热面积灰的形貌及矿物特征,并利用环境扫描电子显微镜(SEM)、X射线电子能谱仪(EDS)、X射线衍射仪(XRD)对样品形貌和矿物成分进行表征。结果表明:石英砂床料(SiO_2)出现团聚现象,除石英(SiO _2)外,团聚体主要由KAl_3SiO_(11)、NaAlSi_3O_8等含Na、K的矿物组成;旋风分离器出口处的取样枪表面发生严重积灰,且表面积灰出现分层现象,外层沉积为松散的粗颗粒,内层沉积为锥形灰块,分析表明Na、K的硫酸盐或者硅铝酸盐促进了灰颗粒烧结,从而在内层形成灰锥。

关键词(KeyWords)： CFB掺烧;准东煤;柳枝稷;床料团聚;灰沉积

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFB0600201)~~

作者(Author): 张家宝,王泉海,卢啸风,李建波,何自聪,高新,邹兴东

DOI: 10.19666/j.rlfd.202108163

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