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| Numerical Simulation of Lance Arrangement in Multiple-Lance Top-Blowing Continuous Converting Process |
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Received:March 13, 2024
Revised:April 12, 2024
Accepted:April 16, 2024
Published Online:July 09, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.08.001 |
| KeyWord:copper smelting; multi-lance top blowing; pyrometallurgical process; numerical simulation; lance arrangement |
| Author | Institution |
| YU Haibo |
云南铜业股份有限公司西南分公司,昆明 |
| LUO Jinsong |
云南铜业股份有限公司西南分公司 |
| DENG Ge |
昆明理工大学冶金与能源工程学院;云南铜业股份有限公司西南分公司 |
| ZHU Pengchun |
云南铜业股份有限公司西南分公司 |
| HU Yiping |
昆明理工大学冶金与能源工程学院;云南铜业股份有限公司西南分公司 |
| HUANG Haochen |
云南铜业股份有限公司西南分公司 |
| LI Wenjie |
昆明理工大学冶金与能源工程学院 |
| WANG Shibo |
昆明理工大学冶金与能源工程学院 |
| HU Jianhang |
昆明理工大学冶金与能源工程学院 |
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| Abstract: |
| The continuous multiple-lance top-blowing process has attracted much attention in metallurgical industry for its advantages of low pollutant gas emission, long service life, and high continuity. With industrial metallurgical furnace as the research object, numerical simulation of gas-slag-copper matte multiphase mixed flow in the continuous multiple-lance top-blowing furnace was carried out by means of computational fluid dynamics. The effects of single-row and staggered arrangement of multiple lances on the flow field, turbulent kinetic energy and gas holdup in the furnace were explored. The results show that compared with the two-row staggered lance arrangement method, the single-row arrangement method has higher mixing capacity, larger lateral and vertical spreading ranges of the molten, and a lower volume of stirring dead region. Moreover, the gas holdup under the single-row lance arrangement method is consistently higher than that under the double-row staggered arrangement, which proves that the former operating method is conducive to the improvement of the slag layer mixing efficiency, accelerated copper sedimentation, and reduced production energy consumption. |
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