The Dynamics of Fast Fluidization

李佑楚; 陈丙瑜; 王凤鸣; 王永生; 郭慕孙

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The Dynamics of Fast Fluidization

更新时间：2025-12-16

- The Dynamics of Fast Fluidization
- CIESC Journal Issue 2, (1979)
- 作者机构：
  
  中国科学院化工冶金硏究所,中国科学院化工冶金硏究所,中国科学院化工冶金硏究所,中国科学院化工冶金硏究所,中国科学院化工冶金硏究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 1979，
  
  Published：25 December 1979
- 稿件说明：
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李佑楚, 陈丙瑜, 王凤鸣, et al. The Dynamics of Fast Fluidization[J]. CIESC Journal, 1979, (2).
DOI：

李佑楚, 陈丙瑜, 王凤鸣, et al. The Dynamics of Fast Fluidization[J]. CIESC Journal, 1979, (2). DOI：

摘要

在外径100mm

高8m的有机玻璃的装置上

对FCC催化剂、三氧化二铝粉料、铁精矿和细粒黄铁矿烧渣进行了快速流态化的流动实验。基于分布在稀薄连续相中颗粒密集体的不断形成和解体的现象

提出了快速流态化的分相流动的物理模型

并用一个一阶微分方程加以描述。其解为 In((ε-ε_a)/(ε-ε))=-(z-z_i)/Z_o 四个模型参数

即ε_a、ε、Z_o、和z_i由实验确定。

Abstract

Experiments on the dynamics of fast fluidization were carried out in a 100mm-diameter plexiglas column

8 meters in height

on FCC catalyst

alumina powder

iron ore concentrate and fine pyrites cinder. Based on the rapid formation and dissolution of dense strands or clusters of solids dispersed in a continuum of dilute phase

a physical flow model of fast fluidization has been proposed leading to a first-order differatial equation

the solution of which yields a four-parameter equation of voidage distribution along the bed height z The integrated average voidage e throughout the whole bed height may be calculated by the following formula It has been found that computed values are in good agreement with those determined experimentally.

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