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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title Achieving Low Pot Failure Rate at Aditya Aluminium
Author(s) Atanu Maity, Venkannababu Thalagani, Bhanu Shankar, Deepak Dash, Anish Das, Kamta Gupta, Shanmukh Rajgire, Amit Gupta, Madhusmita Sahoo
On-Site Speaker (Planned) Anish Das
Abstract Scope At Aditya Aluminium, the average pot life is about 2000 days, pot relining contributes approximately 2.1 % of total production cost. To avoid risk of pot failure, average 55-60 pots relining/year are planned out of 360 pots. Further, to reduce failure, an in-house pot life estimation method was developed, which helped in planned pot stoppage. Firstly, pots were prioritized based on the pot age, iron & silica, side shell temperature (SST), Current Efficiency and specific energy consumption. These factors were assigned with individual weightage, which helped in pots shut down, further pot autopsy was performed for validation. A strategy was adopted for measuring regular SST, observing iron/silica pick-up and Fe/ Mn ratio. Moreover, forced cooling regulation, and selective collector bar cutting were adopted to extend pot life. These methods helped Aditya Aluminium to establish global benchmark among other AP smelters by achieving pot failure rate ~0.6% since inception.
Proceedings Inclusion? Planned: Light Metals
Keywords Other,


Achieving Low Pot Failure Rate at Aditya Aluminium
Application of Cell Retrofit in GP320 Aluminum Reduction Cell Line
CFD Modelling of Solidification and Melting of Bath during Raft Formation
Dissimilar Results in Restarting Two Different Potlines
Evaluation of Methodologies for Assessment of SO3 Concentration in Industrial Off-gas
Experimental Investigation of the Alumina Cloud During Alumina Injections in Low And High Temperature Conditions
Fundamental Mass Transfer Correlations Based on Experimental and Literature Data
Fundamentals of Pot Ventilation in Aluminum Smelters
Mathematical Modelling of the Desulfurization of Electrolysis Cell Gases in a Low Temperature Reactor
Numerical Investigation of the Thermal, Electrical and Mechanical Behaviour of Aluminum Reduction Cell during Preheating Phase
Potential of Production Al-Si Green Alloys in AP18 Aluminium Reduction Cell
Preheat, Start-up and Early Operation of DX+ Ultra Pots at 500 kA
Recent Improvements to a Mathematical Model Replicating the Wave and Stream at the Bath-metal Interface
Restart of Albras’ Potline 2 – Improving Performance and Changing Paradigms
Simplified 3D MHD Model for Quick Evaluation of Aluminium Electrolysis Cell Design
The Expanded Industrial Pilot of SAMI’s NCCT+ Technology
The SY500 Potline Technology Development

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