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Gerdau AmeriSteel has awarded a contract to Process Technology International, Inc. (PTI) to install PTI’s patented JetBOx^™ system on the 75-ton Consteel AC EAF at the company’s Charlotte, N.C., mill.

The system includes two JetBOxes capable of introducing shrouded supersonic oxygen and injected carbon as well as a flow control train, two carbon injection systems, and an integrated automation and control system.

The JetBOx system is particularly suited for the continuous charging/melting practice and fluctuating bath levels inherent in the Consteel process. The JetBOx injectors are capable of operating submerged in the foamy slag layer, which significantly improves the efficiency of oxygen, carbon and natural gas inputs and helps reduce energy losses to the furnace off-gas and sidewalls. Natural gas for oxygen jet shrouding can also be reduced due to the close proximity to the metal bath.

Process Technology International has been a leading supplier of combustion technology and equipment to industry since 1994, particularly equipment for EAF meltshops. PTI combustion systems with proprietary designed oxy-fuel burners and lances have been installed on more than 60 EAFs worldwide with over 300 burners and lances in operation. Since its inception in 1999, JetBOx Technology has now been adopted by over 40 steel plants worldwide with more than 150 JetBOxes in operation.

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