Potroom HF Emission Reduction by Anode Inert Tray Technology Performance of ALRO Industrial 1st of Class

The collection of fugitive fumes from aluminum electrolysis is a major technical issue that has hampered the green production of aluminum electrolysis for a long time. The collection process of fugitive fumes from aluminum electrolysis also is a complex flow process containing multifield coupling. There are various structural parameters that affect the collection efficiency in this procedure. In this paper, a multifield coupling simulation method based on a computational fluid dynamics discrete phase model was developed. To achieve the best collection efficiency, a multifactor interaction effect analysis was executed with the length LW of the exhaust hood edge, the vertical distance DH between the exhaust hood and the surface of the residual carbon block, and the horizontal distance DL between the exhaust hood and the surface of the residual carbon block as the optimization parameters. The response surface methodology and multi-island genetic algorithm were used to carry out the optimization study of maximizing the collection efficiency. The results showed that for the flue gas and dust collection efficiency, the DH contributes the most, followed by the LW, and the DL is the smallest; when the LW is 748.99 mm, DH is 224.06 mm, and DL is 227.66 mm, it can effectively improve the flue gas and dust collection efficiency, in which the flue gas collection efficiency is increased by 6.01% and the dust collection efficiency is increased by 5.97%.

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Potroom HF Emission Reduction by Anode Inert Tray Technology Performance of ALRO Industrial 1st of Class

Cited by 2 publications

References 3 publications

Latest Developments in GTC Design to Reduce Fluoride Emissions

Latest Developments in GTC Design to Reduce Fluoride Emissions

Collection Efficiency Analysis and Structural Optimization of Fugitive Fumes From Aluminum Electrolysis Based on Multifield Coupling

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