Based on the analyse of straw characteristics ( i.e. bulk density, moisture and volatile matter), underfeed stoker and double combustion chambers are introduced in the designing of straw boiler. 通过对秸秆物料本身特性(堆积密度、含水率和挥发分)进行分析,在秸秆锅炉的设计中采用下饲式进料方式和双燃烧室结构。