Segregation patterns in V-blenders

被引：49

作者：

Alexander, A ^{[1
]}

Muzzio, FJ ^{[1
]}

Shinbrot, T ^{[1
]}

机构：

[1] Rutgers State Univ, Sch Engn, Dept Chem & Biochem Engn, Piscataway, NJ 08855 USA

来源：

CHEMICAL ENGINEERING SCIENCE | 2003年 / 58卷 / 02期

关键词：

granular materials; segregation; particle; tumbling blenders; mixing;

D O I：

10.1016/S0009-2509(02)00530-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We report several segregation patterns in V-blenders partially filled with mixtures of glass beads differing in size. Three dominant patterns are found, including one in which larger and smaller particles migrate to opposite halves of the blender. Changes in the rotation rate by as little as 3% can cause a change of pattern. Analysis of particle pathlines suggests that segregation in this vessel may be dominated by 'trajectory segregation', i.e. the inability of larger, more inertial, particles to navigate sharp bends in pathlines. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：487 / 496

页数：10

共 23 条

[11] VIBRATION-INDUCED SIZE SEPARATION IN GRANULAR MEDIA - THE CONVECTION CONNECTION [J].

KNIGHT, JB ;

JAEGER, HM ;

NAGEL, SR .

PHYSICAL REVIEW LETTERS, 1993, 70 (24) :3728-3731

[12]

LAI F, 1981, I CHEM ENG S SERIES, V65

[13] Segregation and coarsening of granular mixture in a rotating tube [J].

Levitan, B .

PHYSICA A, 1998, 249 (1-4) :386-390

[14] Dynamics of granular stratification [J].

Makse, HA ;

Ball, RC ;

Stanley, HE ;

Warr, S .

PHYSICAL REVIEW E, 1998, 58 (03) :3357-3367

[15] Experimentally validated computations of flow, mixing and segregation of non-cohesive grains in 3D tumbling blenders [J].

Moakher, M ;

Shinbrot, T ;

Muzzio, FJ .

POWDER TECHNOLOGY, 2000, 109 (1-3) :58-71

[16] POWDER MIXING - SOME PRACTICAL RULES APPLIED TO AGITATED SYSTEMS [J].

POUX, M ;

FAYOLLE, P ;

BERTRAND, J ;

BRIDOUX, D ;

BOUSQUET, J .

POWDER TECHNOLOGY, 1991, 68 (03) :213-234

[17] WHY THE BRAZIL NUTS ARE ON TOP - SIZE SEGREGATION OF PARTICULATE MATTER BY SHAKING [J].

ROSATO, A ;

STRANDBURG, KJ ;

PRINZ, F ;

SWENDSEN, RH .

PHYSICAL REVIEW LETTERS, 1987, 58 (10) :1038-1040

[18] VIBRATORY PARTICLE-SIZE SORTING IN MULTICOMPONENT SYSTEMS [J].

ROSATO, AD ;

LAN, Y ;

WANG, DT .

POWDER TECHNOLOGY, 1991, 66 (02) :149-160

[19]

SAMYN JC, 1974, J PHARM SCI, V3, P370

[20]

Williams J. C., 1973, CHEM ENG, V19, P19

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