Modelling of sintering of iron particles in high-temperature gas fluidisation

被引：58

作者：

Knight, PC

Seville, JPK ^{[1
]}

Kamiya, H

Horio, M

机构：

[1] Univ Birmingham, Sch Chem Engn, Birmingham B15 2TT, W Midlands, England

[2] Univ Birmingham, IRC Mat High Performance Applicat, Birmingham B15 2TT, W Midlands, England

[3] Tokyo Univ Agr & Technol, Dept Chem Engn, Koganei, Tokyo 184, Japan

来源：

CHEMICAL ENGINEERING SCIENCE | 2000年 / 55卷 / 20期

关键词：

fluidised beds; sintering; high temperature; powder metallurgy;

D O I：

10.1016/S0009-2509(00)00055-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A recently published theory of de-fluidisation of gas fluidised beds has been extended to the case of sintering produced by surface and volume diffusion. The theory was tested against a recently published investigation of the sintering and de-fluidisation behaviour of iron particles at temperatures above 700 K. The theory successfully predicted the dependence on temperature of the gas velocity required to prevent de-fluidisation as a function of the activation energy for surface diffusion. The assumptions made in the theory and the effects of scale are discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：4783 / 4787

页数：5

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