Next Article in Journal
Acoustic Properties of 316L Stainless Steel Lattice Structures Fabricated via Selective Laser Melting
Previous Article in Journal
Al–Fe–Si–La Alloys for Current Collectors of Positive Electrodes in Lithium Ion Batteries
Open AccessArticle

Impact of Local Cathode Electrical Cut-Off on Bath–Metal Two-Phase Flow in an Aluminum Reduction Cell

1
School of Metallurgy, Northeastern University, Shenyang 110819, China
2
Shenyang Aluminum and Magnesium Engineering and Research Institute Co., Ltd., Shenyang 110001, China
*
Authors to whom correspondence should be addressed.
Metals 2020, 10(1), 110; https://doi.org/10.3390/met10010110
Received: 10 December 2019 / Revised: 31 December 2019 / Accepted: 2 January 2020 / Published: 10 January 2020
Many researchers have investigated the impact factors of the bath–metal flow in an aluminum reduction cell using the simulation method. However, only a few have coupled their models with transient electromagnetic force, which makes the model closer to realistic conditions. In this work, coupling with the transient electromagnetic force, a three dimensional bath–metal two-phase quasi-steady flow model for a full 500 kA cell was built, and the model was validated with the metal velocity and the bath–metal interface deformation measurement in industrial cells. The impacts of local cathode electrical cut-off (LCEC) on the melt flow field were simulated according to six industrial cases. We found that the LCEC has little impact on the general pattern of the melt flow field, but the local metal velocity and the interface deformation would be changed to a certain extent. LCEC at positions A2A3 and A10A11 (as introduced in the full text) could suppress the interface hump at the central downstream area of the cell, with the anode cathode distance (ACD) increased by 3% and 7.5%, respectively. LCEC at positions A18A19 and A22A23 would deteriorate the interface hump condition, with the ACD decreased by 4% and 3%, respectively. The solution given in this paper is to cut the cathode flexes partially at abnormal positions to stabilize the melt flow field. View Full-Text
Keywords: aluminum reduction cell; two-phase flow; local cathode electrical cut-off (LCEC); interface deformation; numerical simulation aluminum reduction cell; two-phase flow; local cathode electrical cut-off (LCEC); interface deformation; numerical simulation
Show Figures

Figure 1

MDPI and ACS Style

Wang, F.; Zhang, Q.; Liu, W.; Yang, Y.; Wang, Z. Impact of Local Cathode Electrical Cut-Off on Bath–Metal Two-Phase Flow in an Aluminum Reduction Cell. Metals 2020, 10, 110.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop