Critical Fluidization Characteristics of Iron Ore in Fluidized Bed Reactor

被引：0
|
作者：
Li Z.-M. [1 ]
Han Y.-X. [1 ]
Sun Y.-S. [1 ]
Tang Z.-D. [1 ]
机构：
[1] School of Resources & Civil Engineering, Northeastern University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2024年 / 45卷 / 04期
关键词：
cold test; critical fluidization characteristic; deceleration method; fluidized bed reactor; suspension magnetizing roaster;
D O I：
10.12068/j.issn.1005-3026.2024.04.017
中图分类号：
学科分类号：
摘要：
The U‐type reaction chamber is a core component of suspension roasting equipment，the critical fluidization characteristics of materials have both theoretical and practical significance. Therefore，this paper built a cold test system，and conducted research using hematite powder and aluminum oxide powder as materials to study the influence of aeration air volume，material properties on the critical fluidization characteristics，and modified empirical formula of critical fluidization characteristics based on the test. The results show that the critical fluidization gas velocity increases with the increase in particle size and density of materials. The critical fluidization velocity decreases with the increase of the aeration air volume under the condition of a fixed bed in the loosening chamber，the modified formula fits well with the experimental results and can be used to predict fluidization behavior. The research results are helpful to realize the integration of suspension roasting technology and equipment，and also have certain guiding significance for industrial applications. © 2024 Northeast University. All rights reserved.
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页码：592 / 599
页数：7
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