A model for solid surface viscosity of iron powders at high temperature: Influence of particle size distribution

被引：8

作者：

Zhong, Yiwei ^{[1
]}

Gao, Jintao ^{[1
]}

Guo, Zhancheng ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

来源：

POWDER TECHNOLOGY | 2018年 / 335卷

基金：

中国国家自然科学基金;

关键词：

Metal powder; Fluidized bed; Agglomeration; Particle size distribution; Solid surface viscosity; Modeling; FLUIDIZED-BED COMBUSTION; DEFLUIDIZATION BEHAVIOR; ELEVATED-TEMPERATURE; AGGLOMERATION; AGGLOMERATION/DEFLUIDIZATION; ASH; GAS; CO;

D O I：

10.1016/j.powtec.2018.05.038

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The stickiness of bed material was highly relevant to agglomeration/defluidization in fluidized-bed reduction of iron ore. In this paper, a quantitative model was developed to associate solid surface viscosity (particle adhesion) of a granular group with particle size distribution (PSD) function. The calculation was focused on the sintering behavior of particles with different sizes. This model explained theoretically the dependence of particle adhesion on PSD parameters and thus can be used as a reference to select the particle composition of bed materials for fluidization reduction of iron ore. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：371 / 374

页数：4

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