COLLAPSING BEHAVIOR OF FINE PARTICLES AT HIGH GAS VELOCITY

机译：高气体速度下细颗粒的收集行为

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The collapsing properties of three kinds of fine particles(19μm, 30μm and 59μm) are studied by a new type of bed collapsing technique, "isolated dilute phase bed collapse " to determine the dense phase properties under high superficial gas velocity. The properties of emulsion and bubble phase are investigated by a video camera. The influence of particle size to the particle collapsing properties is discussed. It is found that under high gas velocity the particle of 30μm has longest collapsing time, the smallest emulsion density, largest bubble volumetric fraction. Showing that it has a unique property over other particle size.

机译：通过一种新型的床层塌陷技术“隔离稀相床塌陷”研究了三种细颗粒（19μm，30μm和59μm）的塌陷性质，从而确定了高表观气体流速下的致密相性质。乳剂和气泡相的性质由摄像机研究。讨论了颗粒尺寸对颗粒塌陷性能的影响。发现在高气体速度下30μm的颗粒具有最长的塌陷时间，最小的乳剂密度，最大的气泡体积分数。表明它相对于其他粒径具有独特的性能。

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《Proceedings '96 China-Japan symjposium on particuology》|1996年|P.4|共1页
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Guoqiang Yang; Fei Wei; Yong Jin; Zhiqing Yu;
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正文语种
中图分类粉末技术;
关键词
bed collapse technique; fine particle; high gas velocity;

机译：床塌陷技术;细颗粒;高气体速度;

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COLLAPSING BEHAVIOR OF FINE PARTICLES AT HIGH GAS VELOCITY

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