Geometry optimisation of a gravity dust-catcher using computational fluid dynamics simulation

被引：8

作者：

Winfield, David ^{[1
]}

Cross, Mark ^{[1
]}

Croft, Nick ^{[1
]}

Paddison, David ^{[2
]}

机构：

[1] Swansea Univ, Coll Engn, Computat Modelling Grp, Swansea SA2 8PP, W Glam, Wales

[2] Tata Steel Strip Prod UK, Port Talbot Works, Port Talbot SA13 2NG, South Wales, Wales

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2012年 / 62卷

基金：

英国工程与自然科学研究理事会;

关键词：

Gravity dust-catcher; Lagrangian particle tracking; Gas de-dusting; Particle separation; Computational fluid dynamics; FLOW; GAS; CYCLONE;

D O I：

10.1016/j.cep.2012.08.001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A gravity dust-catcher is a high tonnage device that is widely used to separate a mixture of dusts from blast furnace (BF) top gas flow. Dusts include limestone, iron ore and coke/coal. The flow pattern within the dust-catcher is complex due to the turbulent vortices formed within, consequently making it hard to accurately predict dust-catcher performance. Using data from an on-site dust-catcher. CFD simulations are conducted on a range of geometry modifications to produce an optimised dust-catcher design specification. The effect on particle separation efficiency during a typical blast furnace (BF) operational cycle is analysed. An attempt is made to develop and optimise a more efficient gravity dust-catcher using CFD simulation results at distinct stages of the design process. It is concluded that the newly patented dust-catcher design, can control the air flow profile much more effectively than the existing on-site design, being approximately 48% more efficient on average, from a particle separation efficiency perspective. The design may provide an effective low cost alternative to a gas separation cyclone. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：137 / 144

页数：8

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