摘要
生物质物料的堆积密度是确定料斗尺寸和设计进料装置的基础。通过对稻壳粉进行筛分,测量了不同粒径稻壳粉的松散堆积密度和振实堆积密度。当稻壳粉粒径d逐渐减小时,2种堆积密度均先增大后减小,当0.074 mm<d≤0.105 mm时达到最小值。当d≤0.074 mm时,振实堆积密度达到最大值。采用生物显微镜对稻壳粉进行观察,从堆积形态上解释了稻壳粉堆积密度随粒径变化的原因,为稻壳的工业化利用提供了必要的数据。
Biomass bulk density is a basis for determining the hopper volume and for designing feedstock equipment. By sieving the rice husk particles （RHPs）, the paper presents the loose and the tap bulk density of different sizes of rice husk. The bulk density will first be increased then be decreased when the rice husk particle diameter d gradually decreases, both the loose bulk density and the tap bulk density are smallest when 0.074 mm〈d≤0.105 mm. Whereas, when d≤0.074 mm the tap bulk density is the biggest. To explain these phenomena, the paper observes the structure of RHPs by using microscope. And the rule that RHPs bulk density changed with particle size is explained in the view of pile-form. The essential data was provided for industrial utilization of rice husk.
出处
《可再生能源》
CAS
2008年第5期49-52,共4页
Renewable Energy Resources
