Effect of Powder–Liquid Interaction on Their Accumulation Behavior in Packed Bed
Effect of Powder–Liquid Interaction on Their Accumulation Behavior in Packed Bed
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DOI：
10.2355/isijinternational.54.1244
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发表时间：
2014-06
影响因子：
1.8
通讯作者：
S. Kikuchi;S. Ueda,;T. Kon;R. Inoue;S. Natsui;H. Nogami
中科院分区：
文献类型：
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作者：
S. Kikuchi;S. Ueda,;T. Kon;R. Inoue;S. Natsui;H. Nogami
在炼铁高温过程中，固、液、气三相共存并相互作用。气体在含有液体和粉末的填充床中的流动取决于它们的分布和填充结构。通过填充床的部分液体和粉末相积累。过度堆积可能会堵塞填充床中的气体流动。粉末和液体在填充床中共存时的流动和堆积行为尚不清楚。因此，本研究对液体和粉末的堆积和堵塞现象进行了实验研究。主要研究了润湿性和粉末直径对其累积的影响。结果表明，填料与液体的润湿性通过持液率的形式对粉末的积累有显著影响。
In ironmaking high temperature processes, solid, liquid, and gas phases coexist and interact one another. The gas flow in a packed bed containing liquid and powder depends on their distributions, and the packing structure. Some parts of the liquid and powder phases passing through of the packed bed accumulate. Excessive accumulation may clog the gas flow in the packed bed. The flow and accumulations behaviors of powder and liquid phases coexisting in a packed bed have yet to be clarified. Thus the phenomena of liquid and powder accumulation and clogging were experimentally investigated in the present study. The effect of the wettability and powder diameter on their accumulation was mainly studied. The results revealed that the wettability of packed material with liquid had significant effect on the accumulation of powder through the form of the liquid holdup.