2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 8: Non-ferrous, Rotary Kiln, Ferro-alloys, Rare Earth, Coal
| Editors: | Kongoli F, Xueyi G, Shumskiy V, Kozlov P, Capiglia C, Silva AC, Turna T |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 350 pages |
| ISBN: | 978-1-987820-50-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Simulation of gas phase motion in oxygen bottom blown copper smelting process
Shuyang Yan1; Qinmeng Wang2; Qinghua Tian2; Xueyi Guo2;1CENTRAL SOUTH UNIVERSITY, hunan changsha, China; 2CENTRAL SOUTH UNIVERSITY, Changsha, China;
Type of Paper: Regular
Id Paper: 174
Topic: 6
Abstract:
The volume of a fluid model in FLUENT software was adopted to simulate the gas-liquid two-phase flow motion in the oxygen bottom blown smelting process. The energy transfer process between gas-liquid phase, the variation law of the velocity field and pressure field and the formation, division and mergence behaviors of bubbles in the bath were mainly studied. The results showed that the formation, division and mergence behaviors of bubbles were closely linked with the velocity field and pressure field in the bath. Bubbles breakup was mainly caused by the interaction of bubbles at an earlier stage, then caused by gas-liquid two-phase movement effect. The energy transfer occured when the gas phase entered into the liquid phase at a certain speed. The flow velocity in the upper part of the oxygen lance zone was relatively high while the flow velocity was slow on both sides in the bath. With gas phase entering into liquid phase continuously, the distribution of velocity field and momentum filed expended gradually in the bath which stirred the bath efficiently. The variation of vector and momentum distribution showed that there was a symmetrical gas-liquid two-phase action region on both sides in the bath in which spinning motion of bubbles was helpful to generate tiny air bubbles to improve the efficiency of bath reaction.
Keywords:
Copper; Gases; Oxygen; Pressure;References:
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