ArcelorMittal Contrecoeur Ouest Inc has confirmed that Tenova Goodfellow Inc has achieved EAF operating savings of over USD 2 per tonne liquid steel using the EFSOP system at its plant just east of Montreal Canada. These savings include significant reductions in electrical energy, natural gas and charged carbon, as well as increased productivity.
The performance benefits were accomplished through a combination of various EFSOP optimization strategies that included real time closed loop control of burners and oxygen injectors for various operating conditions and various carbon endpoint grades, charge carbon practice and bucket loading modification; electrical program modification during low electrical power limit conditions and post combustion hold mode during high fume system temperature conditions that reduced operation stoppages.
Tenova Goodfellow has also completed the installation of its EFSOP® Water Detection System, which detects and alerts operators in real time of abnormal water events in the furnace. The system uses the off gas measurements from the EFSOP® system and proprietary software to compare abnormal operating conditions to known normal operating conditions.
The EFSOP® Water Detection system has confirmed observed leaks such as water leaks in the smoke ring and roof delta, as well as excessive snow in the charge buckets.