MIXING IN A HELICAL RIBBON POWDER AGITATOR

被引：4

作者：

COOKER, B

NEDDERMAN, RM

机构：

[1] Univ of Cambridge, Cambridge, Engl, Univ of Cambridge, Cambridge, Engl

来源：

POWDER TECHNOLOGY | 1986年 / 46卷 / 2-3期

关键词：

FLOW OF FLUIDS - Mathematical Models - POWDERS - Mixing;

D O I：

10.1016/0032-5910(86)80035-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Gas-phase polymerization reactions can be carried out in a vessel in which the resulting polymer powder is circulated by means of a helical ribbon agitator. In order to promote satisfactory reaction, both the product and the catalyst must be distributed uniformly. A study has been made of the circulation pattern of the powder by means of a radio pill tracking system from which it was deduced that the circulation is basically in plug flow with only a small spread of circulation times. An analysis is presented to permit the calculation of the time required to obtain the calculation of the time required to obtain a satisfactory distribution following the injection of a fresh pulse of catalyst.

引用

页码：263 / 269

页数：7

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