On the modelling of the packing of fine particles

被引：228

作者：

Yu, AB

Bridgwater, J

Burbidge, A

机构：

[1] UNIV CAMBRIDGE,DEPT CHEM ENGN,CAMBRIDGE CB2 3RA,ENGLAND

[2] UNIV NEW S WALES,SCH MAT SCI & ENGN,SYDNEY,NSW 2052,AUSTRALIA

来源：

POWDER TECHNOLOGY | 1997年 / 92卷 / 03期

基金：

澳大利亚研究理事会; 英国工程与自然科学研究理事会;

关键词：

packing; porosity; fines;

D O I：

10.1016/S0032-5910(97)03219-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

It is postulated that the effect of absolute particle size on particle packing be modelled by use of (i) an initial porosity to take into account the packing of mono-sized particles and (ii) the concept of packing size ratio as a measure of the particle-particle interaction in forming a packing of mixed powders. This hypothesis is tested by the experimental measurements of the standard poured and tapped packing densities of white fused alumina powders. The results indicate that simple measurements can lead to the formulation of equations to quantify initial porosity and the packing size ratio. The porosity of multicomponent mixtures of powders can be predicted by the modified linear packing model as facilitated by the equations formulated.

引用

页码：185 / 194

页数：10

共 34 条

[1]

Bridgwater J., 1994, GRANULAR MATTER INTE, P161

[2] THE POROSITY AND CONTACT POINTS IN MULTICOMPONENT RANDOM SPHERE PACKINGS CALCULATED BY A SIMPLE STATISTICAL GEOMETRIC MODEL [J].