CAJ | 학술논문

以循环流化床锅炉飞灰为研究对象,分析了飞灰的粒径和含碳量分布,并利用扫描电子显微镜观察了不同粒径飞灰的微观形貌.结果表明,循环流化床锅炉飞灰中碳的质量分数最高的区域分布在38～58 μm、90～120μm和大于150μm的粒径段,具有峰值特征;且循环流化床锅炉焦炭颗粒的燃尽与燃烧室温度、颗粒的孔隙结构及旋风分离器的性能关系密切.
이순배류화상과로비회위연구대상,분석료비회적립경화함탄량분포,병이용소묘전자현미경관찰료불동립경비회적미관형모.결과표명,순배류화상과로비회중탄적질량분수최고적구역분포재38～58 μm、90～120μm화대우150μm적립경단,구유봉치특정;차순배류화상과로초탄과립적연진여연소실온도、과립적공극결구급선풍분리기적성능관계밀절.
Taking CFB fly-ash as research object,this paper analyzed the size distribution and carbon content distribution of fly-ash,and characterized the microscopic morphology of the fly-ash of different size with scanning electron microscope. The results show that CFB fly-ash with highest carbon content lies in the range of 38～58 μm,90～120 μm,and >150 μm,exhibiting peah distribution; the burn-out of char pariticles in CFB is closely related to combustion chamber temperature, particle porosity and cyclone performance.