Using sawdust as raw material, under the condition of 2%-4% opening rate of distributor, the effects of particle size and sawdust bed height on fluidization velocity in cold bubbling fluidized bed were determined.

• 摘要冷态条件下，在鼓泡流化床中采用木屑为原料，分布板在2%25~4%25不同开孔率的条件下，分别考察了原料粒径和床层高度对木屑流化速度的影响。