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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Electrode Technology for Aluminum Production
Presentation Title Plate Yokes. Anode Assembly without Cast Iron
Author(s) Jorund Gimmestad Hop, Vidar Hjelle, Per Johnny Teigen, Inge Arild Vee, Bjarte Arne ye, Grzegorz Stefanski
On-Site Speaker (Planned) Jorund Gimmestad Hop
Abstract Scope Anode assemblies typically consist of steel stubs locked into holes in the anode carbon using cast iron. The contact resistance between the cast iron and carbon and the necking of the amperage in the anode top contribute to electrical resistance. In the anode assembly presented here the cast iron is replaced by steel shots and the stubs replaced by plates. The assembly is held together with eight L-locks machined into the carbon anode. The steel shots sinter during an anode cycle, but can after an anode cycle be stripped off, crushed and re-used. The area of the yoke-carbon-connection is increased by using plates instead of stubs. A reduction of 50 mV-100 mV in 11 kA anode assemblies was measured. The contact area and therefore the electrical resistance is less affected when changing plate thickness. The heat loss of such an assembly is therefore easier to design. The rodding operation without liquid cast iron will be safer. The footprint, investment cost and operation cost of such a rodding station will probably be significantly reduced.
Proceedings Inclusion? Planned: Light Metals
Keywords Aluminum, Other, Joining

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Assessment of Pre-baked Anodes Homogeneity Using Acousto-ultrasonic Testing and 3D Interpolation Methods
Bio-binders and Its Carbonization and Interaction with Petroleum Coke during Baking
Blocked Fluewall Detection and Improved Safety for Anti-flooding Module, A New Approach for Safer Operations of Anode Baking Furnaces
Driving Continuous Improvement in a Modern GPC/CPC Testing Laboratory
Dynamics of Anode Baking Furnace VOC Emissions through a Firing Cycle
Ecofriendly Glue for the Aluminium Electrolysis Pot
Effect of Coke Type on the Partial Replacement of Coke with Modified Biocoke in Anodes Used in Primary Aluminum Production
Effects of Stub Preheating Temperature on the Anode Voltage Drop in the Aluminium Reduction Cell
EGA Journey with Different Ramming Pastes
Machine Vision Sensor Based on Image Texture Analysis Applied to Industrial Anode Paste
Molecular Dynamic Insights into Carbon Electrode Behaviors of Aluminium Electrolysis
NOW ON-DEMAND ONLY – Anode Rod Tracking: A New Marking Method for Optimized Implementation
Optical and Electrochemical Characterisation of Carbon Anodes with Varying Porosity and Coke Quality
Plate Yokes. Anode Assembly without Cast Iron
Quality Evaluation of Nitride Bonded SiC Sidelining Materials. Historical Trends 1997-2022 Including Results and Development of Test Methods

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