Mechanism elucidation of the ultra-fine particle cluster of formation and growth and collapse and the control.

为了阐明颗粒团块（簇）的形成机理，需要精确地估计颗粒团块（簇）形成过程中粒子与周围环境的相互作用。以常压为模型吹入因子，调节气体湿度，通过液体过桥人为控制颗粒间的粘附，形成团簇（相对湿度30 ~ 90%）。通过调整其形成条件，考察其形成机理和形成过程。另外，在控制条件下，从容器侧塌缩处施加超声波，通过测量层内相对于形成团簇群的间接压力损失来测量团簇塌缩的程度（这些层叠它，流体颗粒群形成的难易程度）。同时，这也测量了这个，因为它也。更多的是受流动程度影响的传热。通过改变层高、玻璃珠粒径和气流速度，通过将来自分散版的气流与超声波印模强度联系起来，对其进行了实验研究，因为当后者形成时，形成了通道的水道（前进气流），而避免了簇团。结果表明，超声波击穿破坏了液体过桥，避免了通道的形成，改善了流动条件。一次，换热系数比颗粒间不存在液体过桥的流动条件下的换热系数降低90%以上，当层内形成通道时，恢复非常严重。在低湿度条件下（团簇形成程度较小），虽然有可能存在超声波印模影响层内流动状况的情况，但根据知识得出该影响不影响等。少

It is necessary to estimate the interaction between particle and environment in the circumference in the formation of the particle cluster precisely for the elucidation of formation mechanism of the particle lump (cluster) with the adhesion in the inter-particle. By blowing under the normal pressure as a model of influent factor, and adjusting the humidity of the gas, the adhesion is artificially controlled in the inter-particle by the liquid cross-bridge, and the cluster is formed (the 30〜90% relative humidity). Formation mechanism and formation process were examined by adjusting their forming condition. In addition, in controlling sake, the ultrasonic wave is applied from the container side collapse, and the degree of a cluster collapse was measured by the measurement of the indirect pressure loss in the layer in respect of the formation cluster group (these laminate it, and the difficulty fluid particle group is formed). Simultaneously, this also measured this, because it was also i … More nfluenced to the heat transfer by the degree of the fluidity. It was examined experimentally by changing layer high, glass bead particle size, and gas velocity by relating gas stream from the dispersion edition to the ultrasonic wave impression strength, because the watercourse of the channeling is formed (progressing gas stream), when it is latter, while the cluster group is avoided. As the result, it destroys the liquid cross-bridge by the ultrasonic wave impression, and that it avoids the formation of the channel possibly improves the flow condition is possible. Once, there is the lowering of heat transfer coefficient over 90% in comparison with the heat transfer coefficient in flow condition in which the liquid cross-bridge does not exist in the inter-particle, when the channeling is formed in layer, and the recovery is very serious. In the low humidity condition (the degree of the cluster formation is small), though it was possible that the ultrasonic wave impression affected the flow condition of in layer, it was got that the effect does not affect, etc. as knowledge. Less