Electric Arc Furnace
Burner Management
Basic and Detailed Construction Engineering
In 2018, a major steel manufacturer required an upgrade to the burner management control system (BMS) of their twin-shell electric arc furnace (EAF) referred to as the East and West EAF. The upgrade was required to meet current regulatory codes and to provide separation of the burner management controls from the process PLC’s controls. JNE was engaged to perform engineering, procurement and construction management services.
The original process controls were installed during the fabrication of the facility in 1996. The existing burner management system was integrated within this initial design and the PLC furnace combustion control system. The EAF process for both furnaces were controlled by multiple PLCs, providing combustion, de-dusting and electric arc controls.
In the replacement system, a single BMS controls the burners on both the East and West EAFs. It has two control panels housing the processor, remote I/O racks and I/O modules, HMI displays, fiber-optic Ethernet system, and all of the additional components that support the replacement system. The new system will monitor and shut down all the burners within a single furnace on detection of a fault within the BMS. In addition, it will monitor the fuel/oxygen flows of the Fuel-Air Ratio Control so that on detection of a ratio out of the design range the BMS will initiate a burner trip.
JNE’s scope for this project included multi-discipline basic and detailed construction engineering, construction management and as-built drawings. Functional design specifications, electrical I/O schematics, instrumentation specifications, P&ID Drawings, safety PLC programming, panel construction, acceptance tests and field installation were additional deliverables for this project. All work was completed on time and on budget.
