Safety devices for burners on EAF
Maximum flow rates and safety against backfire or gas return for burners on electric arc furnaces
Burners for electric furnaces require gas flow with minimal pressure loss along the supply line to achieve maximum performance. Conventional gas safety devices are unsuitable for this purpose, as their design is not optimized for maximum throughput.
BEDA burner safety systems are aerodynamically designed for each specific gas (oxygen, natural gas, butane, etc.) and achieve the highest flow rate among available gas safety devices.
At the same time, they are engineered for operation near the furnace and offer the highest operational reliability. No other safety device has proven to be as reliable under the extreme operating conditions of an electric arc furnace.
The safety functions themselves are unique in their combination:
The BEDA 2-function burner safety device features not only a flow-optimized check valve, but also a thermocouple with a defined response temperature to protect against burning gas backflow. Since the flame front precedes the pressure wave, it can pass through the hoses and supply lines without hindrance from simple check valves, potentially igniting the line itself. The BEDA thermocouple in the BEDA-2 function burner safety device, on the other hand, responds to a specific temperature and shuts a second valve well before the non-return valve of the safety device can react to the pressure wave.
The illustration shows the BEDA SAFETY MAXXX concept, delivering maximum safety and top performance without significant pressure loss, as a 3-safety device set for oxygen and fuel gas lines.
