- Title
- Water modelling of Bluescope Steel 55%Al-Zn metal coating pots
- Creator
- He, Qinglin; Setargew, Nega; Evans, Geoff; Willis, David J.; Thompson, Darren; Donaldson, Paul
- Relation
- InterZAC 2008. Proceedings of the InterZAC 2008 (Sydney, N.S.W. 14-19 September, 2008)
- Relation
- http://www.interzac.org/docs.htm
- Publisher
- ZAC Association
- Resource Type
- conference paper
- Date
- 2008
- Description
- In this paper the results of water modeling studies of fluid flow and intermetallic dross particle behaviour in molten 55%A1-Zn metal coating bath are presented. BLUESCOPE STEEL operates a number of metal coating lines with each having its own unique bottom dross behaviour. In some coating lines there is excessive bottom dross build-up, and to understand why this might occur two 113 scale experimental models were constructed one corresponding to a pot with an excessive bottom dross build-up problem and one without. Experiments were carried out to determine suspension characteristics, namely solids concentration as a hnction of time and particle deposition profiles, for different values of: water flow rates (kinetic power) through the inductors, bath geometry and coating speeds. The effect of the moving strip on suspended dross particles is discussed. Dross particle suspension in the coating bath was quantified by sampling the bath at various locations and using a particle analyser capable of counting and size distribution. It was found that for both inductor types (conventional and Jetflow) the kinetic power input due to the inductor jets had the greatest influence on suspension characteristics. The use of water modeling as a tool for problem solving, improved pot design and for developing operating practices to minimize bottom dross build-up is also discussed.
- Subject
- water modelling studies; bottom dross; metallic coating; ZINCLUME
- Identifier
- http://hdl.handle.net/1959.13/802594
- Identifier
- uon:6142
- Language
- eng
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