Dust emission in powder handling: Free falling particle plume characterisation

被引：39

作者：

Ansart, Renaud ^{[1
]}

de Ryck, Alain ^{[1
]}

Dodds, John A. ^{[1
]}

机构：

[1] Ecole Mines Albi, Ctr RAPSODEE, CNRS, UMR 2392, F-81013 Albi 09, France

来源：

CHEMICAL ENGINEERING JOURNAL | 2009年 / 152卷 / 2-3期

关键词：

Dust emission; Plume characterisation; Particle size; Dust concentration; Particle velocity;

D O I：

10.1016/j.cej.2009.04.070

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dust generation during solids handling, principally from the free falling of bulk materials and their impact on stockpiles. can be a health threat for operators and a cause of dust explosions. The proper design of a dust emission control system requires knowledge of the behaviour of the free falling jet, in particular the amount of air entrained by the falling powder and the concentration of dust liberated. The focus in this present paper is on the effect of drop height of a free falling jet on segregation by particle size, particle velocity, changes in particle concentration and entrained air in the dust plume. This gives a quantification of the important parameters and the concentration of dust emitted during a free fall. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：415 / 420

页数：6

共 8 条

[1] Dust emission by powder handling: Comparison between numerical analysis and experimental results [J].

Ansart, Renaud ;

de Ryck, Alain ;

Dodds, John A. ;

Roudet, Matthieu ;

Fabre, David ;

Charru, Francois .

POWDER TECHNOLOGY, 2009, 190 (1-2) :274-281

[2]

Cooper P., 1995, Kona, V13, P125

[3]

COOPER P, 2001, 14 AUSTR FLUID MECH

[4]

Liu Z.Q., 1999, POWDER HAND PROCESS, V4, P421

[5] MEASUREMENTS OF ENTRAINMENT BY AXISYMMETRICAL TURBULENT JETS [J].

RICOU, FP ;

SPALDING, DB .

JOURNAL OF FLUID MECHANICS, 1961, 11 (01) :21-32

[6]

WOODALL I, 1993, INVESTIGATION VARIOU

[7] Controlling dust emissions and explosion hazards in powder handling plants [J].

Wypych, P ;

Cook, D ;

Cooper, P .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2005, 44 (02) :323-326

[8]

ZE QL, 2001, AIR ENTRAINMENT FREE

← 1 →