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| Numerical Simulation of Flue Gas Particle Two-phase Flow in Copper Flash Converting Furnace |
| Received:February 21, 2022 Revised:March 21, 2022 |
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| DOI：doi：10.3969/j.issn.1007-7545.2022.07.001 |
| KeyWord:copper; flashing converting furnace; uptake shaft; flue gas flow; dust flow; numerical simulation |
| Author | Institution |
| REN Peng |
铜陵有色金冠铜业分公司 |
| XING Zhi-nan |
铜陵有色金冠铜业分公司 |
| YE Shu-feng |
铜陵有色金冠铜业分公司 |
| CHEN Zhuo |
中南大学 能源科学与工程学院 |
| PENG Xuan |
中南大学 能源科学与工程学院 |
| ZHU Zhen-yu |
中南大学 能源科学与工程学院 |
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| Abstract: |
| In order to study the characteristics of flue gas and smoke movement and analyze the serious erosion of refractory material in uptake shaft of copper flash converting furnace, taking the uptake shaft of the copper flash converting furnace as object, the simulation calculation of flue gas and particles two-phase flow in uptake shaft of copper flash furnace was carried out to analyze the movement characteristics of flue gas and dust in uptake shaft. The main reasons for rapid formation of accretion at the connection of uptake shaft and waste heat boiler were explored. The results show that the movement trajectory of dust particles is mainly driven by the flue gas, due to their small sizes. Meanwhile, the velocities of flue and dust are large at the bottom of uptake shaft and the connection of shaft and boiler, which is easy to cause the erosion of refractory material. Furthermore, at the connection of shaft and boiler, as the temperatures of flue gas and dust are still relatively high, the molten particles are assumed easier to stagnate and accrete due to the velocity reduction and back-flow of flue gas. Due to the influence of flue gas flow in the uptake shaft which lead to the offset of flame of nozzle, the accretion at the west side of connection is easy to format, while the east side is not. |
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