Afrox has launched its new OXYGON® solutions – an effective vessel preheating process for maximising efficiency in metal production industry.
The new process goes beyond conventional burner designs by harnessing the highly efficient power of a flameless oxyfuel combustion system.
These advanced and controlled combustion programmes ensure optimal heating curves that can reduce ladle heating times from 90 minutes to 40 minutes, thus reducing the number of ladles in operation while at the same time maximising refractory lifetime, increasing efficiency and lowering emissions.
Simphiwe Molefe, Applications Specialist for Bulk Markets at Afrox, explains, “Airfuel-based combustion often leads to large quantitates of heat loss and sometimes conventional equipment can’t heat ladles to the required temperature within the set timeframe, which creates problem later, as it becomes costly and difficult to maintain a high and consistent level of preheating,” he explains.
“When one of Afrox’s combustion control systems is integrated into the process chain, there is no need for over-heating or additional heating as the OXYGON solution can ensure consistent temperature from one phase to the next,” he continued.
The dispersed flame is distributed uniformly throughout the vessel and as a flameless oxyfuel burner system is used, the OXYGON system can contribute up to 55% fuel savings while simultaneously reducing nitrogen oxides (NOx) and carbon dioxide (CO2) emissions.
The two oxygen solutions available form Afrox are:
OXYGON 400 with a nominal power 400 kilowatts (kW) for vessels with capacities from 1-20 tonnes. This solution is ideal for customers looking for a simple, efficient method of preheating typically found in foundry vessels.
OXYGON XL with a 0.8-1.5 megawatt (MW) burner suitable for vessels with capacities from 30 to 150 tonnes and offering a more advanced control system than OXYGEN 400.
Both systems feature an integrated burner pilot and UV cell with leak testing to ensure safety at all times, compact and easy installation, flowtrains for fuel and oxygen, and semi-flameless combustion. They are compliant with local safety standards and have programmable heating curves for drying and reheating.