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In a natural gas fired reverberatory meltingMelting furnace, the process of delivering energyEnergy to the charge to be melted is dependent on the refractoryRefractory inside the furnace to reradiate energyEnergy from the flame to the charge. An innovative way to improve the efficiency of the process is to increase the emissivity of the refractoryRefractory above the charge to increase the energyEnergy transfer. A new patent pending refractoryRefractory material εMAXXX™ supplied by Wahl RefractoryRefractory Solutions with higher emissivity (0.80–0.95) than typical refractoryRefractory materials has been installed in the roof of a conventional batch production round top aluminumAluminum meltingMelting furnace. After several months of operation, the furnace has shown an improvement in total cycle energy efficiencyEnergy efficiency of 0.9% and a melt rate improvement of 4.7%.

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High Emissivity Refractory for Aluminum Melting Furnace

  • 会议论文

  • 发表日期：

    2026年

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  • Geoff Perdue,
  • Brent Mydland,
  • Calen Kirkpatrick,
  • Edward M. Williams

摘要

In a natural gas fired reverberatory meltingMelting furnace, the process of delivering energyEnergy to the charge to be melted is dependent on the refractoryRefractory inside the furnace to reradiate energyEnergy from the flame to the charge. An innovative way to improve the efficiency of the process is to increase the emissivity of the refractoryRefractory above the charge to increase the energyEnergy transfer. A new patent pending refractoryRefractory material εMAXXX™ supplied by Wahl RefractoryRefractory Solutions with higher emissivity (0.80–0.95) than typical refractoryRefractory materials has been installed in the roof of a conventional batch production round top aluminumAluminum meltingMelting furnace. After several months of operation, the furnace has shown an improvement in total cycle energy efficiencyEnergy efficiency of 0.9% and a melt rate improvement of 4.7%.