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| Thermal Diagnosis and Energy Saving Analysis of Copper Dross Converter Based on Energy-Mass Flow Balance and Numerical Simulation |
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Received:March 01, 2024
Revised:March 21, 2024
Accepted:March 22, 2024
Published Online:July 09, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.08.003 |
| KeyWord:copper dross converter; thermal test; thermal balance; energy saving optimization; numerical simulation; natural gas; enriched oxygen combustion |
| Author | Institution |
| YAN You |
湖南水口山有色金属集团有限公司 |
| XIE Huanyu |
中南大学 |
| HU Weiwen |
湖南水口山有色金属集团有限公司 |
| YANG Zilin |
湖南水口山有色金属集团有限公司 |
| LIU Yong |
湖南水口山有色金属集团有限公司 |
| YAN Hongjie |
中南大学 |
| LIU Liu |
中南大学 |
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| Abstract: |
| The temperature, pressure, flue gas composition and other parameters at key positions of the converter were obtained through comprehensive thermal test on a copper dross converter, and the energy utilization and energy-mass flow path of the converter were analyzed. The oxygen-enriched combustion process of natural gas in the furnace was simulated by numerical simulation technology based on thermal test data. The results show that the thermal efficiency of the copper dross converter is 19.96%, and the main reasons for the low thermal efficiency of the converter are excessive air leakage and excessive heat dissipation from the wall. In addition, the excessive amount of pulverized coal used in the reaction heat theory calculation is also considerable. Based on the thermal diagnosis results, the following energy-saving optimization suggestions are proposed: adjust the amount of pulverized coal to achieve the optimal dosing; take insulation measures to reduce surface heat dissipation; enhance the tightness of the converter to reduce air leakage; adjust the layout of burners to enhance heat exchange between flue gas and melt. |
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