Ladle heating, today, is almost as critical to the steelmaking operation as any other process. The key
objective of ladle heating is to avoid, or better limit, the metal temperature fall due to the metal
transfer into a ladle. Today, with the new techniques of ladle metallurgy (degassing, desulphurization
etc), high temperatures of preheating are frequently required. The energy cost of ladle heating has
consequently grown and, in the same time, more attention is given to it.
The evolution in refractory materials allows the use of air-oxy- fuel burners, such as ACI's PyreTron
burner, to realize the ladle preheating, with very good performances and with all the advantages related
to oxy-combustion. Some of the main benefits of ACI’s PyreTron technology, which has been installed in
over 140 ladle heating systems in the last 20 years, are following.
PyreTron’s air-oxy- burner technology gives the flexibility to run the burner according to fuel and O2
costs. It can run with high O2 participation when fuel costs are high and with high air participation when
O2 costs are high. So the customer has the flexibility to run their heater depending on market situation
or fuel/ O2 availability while also providing them the highest possible cost saving.
PyreTron can achieve upto 60% fuel saving compared to air burners depending on ladle operation.
Since PyreTron has the flexibility to operate with varying O2 participation, the customer can adjust the
flame temperature according to operational needs such as high air participation while drying and high O2
participation while holding. It provides them the most ideal flame temperature for their operation thus
improving the ladle refractory life.
PyreTron burners are air cooled because of their design so need very little maintenance throughout
their life. Some of our burners have been in ladle heating operation for over 20 years without any issues.
The variable O2 participation provides up to 30% reduction in heating time compared to conventional air