Real time visualisation and analysis of dense phase powder conveying

被引:38
作者
Ostrowski, K [1 ]
Luke, SP [1 ]
Bennett, MA [1 ]
Williams, RA [1 ]
机构
[1] Univ Exeter, Camborne Sch Mines, Redruth TR15 3SE, Cornwall, England
基金
英国工程与自然科学研究理事会;
关键词
real time visualisation; dense phase; powder conveying;
D O I
10.1016/S0032-5910(98)00201-0
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Investigation and control of flow phenomena in the pneumatic conveying of solids requires a detailed knowledge on the flow regimes and a number of phase flow properties. Electrical capacitance tomography (ECT) is shown here to be a robust tool for this purpose, particularly when dense phase plug flow is to be monitored. The application of ECT to dense phase powder conveying in an experimental vacuum system is demonstrated and described, including the visualisation of slug size, shape and velocity. Measured gas and solid flow rates were also analysed in an attempt to ultimately provide a basis for comprehensive on-line analysis. A number of statistical estimators were selected and used in data processing, in order to distinguish between particular types of dense flow. The results show the potential for use of the method for the on-line control of dense phase pneumatic conveyors. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:1 / 13
页数:13
相关论文
共 16 条
[1]  
[Anonymous], 1997, PNEUMATIC CONVEYING
[2]  
[Anonymous], 1986, NUMERICAL RECIPES C
[3]  
BYARS M, 1996, COMMUNICATION
[4]   Application of capacitance tomography to gas-solid flows [J].
Dyakowski, T ;
Edwards, RB ;
Xie, CG ;
Williams, RA .
CHEMICAL ENGINEERING SCIENCE, 1997, 52 (13) :2099-2110
[5]   SOLIDS FLOW IMAGING AND ATTRITION STUDIES IN A PNEUMATIC CONVEYOR [J].
MCKEE, S ;
DYAKOWSKI, T ;
WILLIAMS, RA ;
BELL, TA ;
ALLEN, T .
POWDER TECHNOLOGY, 1995, 82 (01) :105-113
[6]  
OAKLEY PJ, 1995, PROCESS TOMOGRAPHY I, P393
[7]   Application of conjugate harmonies to electrical process tomography [J].
Ostrowski, KL ;
Luke, SP ;
Williams, RA .
MEASUREMENT SCIENCE AND TECHNOLOGY, 1996, 7 (03) :316-324
[8]  
*PIAB, 1994, 2 PIAB
[9]  
REIECKE N, 1997, CHEM ENG SCI, V52, P2111
[10]   REAL-TIME CAPACITANCE IMAGING OF BUBBLE FORMATION AT THE DISTRIBUTOR OF A FLUIDIZED-BED [J].
WANG, SJ ;
DYAKOWSKI, T ;
XIE, CG ;
WILLIAMS, RA ;
BECK, NS .
CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL, 1995, 56 (03) :95-100