Ladle Preheaters

The ladle refractory lining temperature, during the production cycle, especially for basic linings, must be constantly reset and maintained at convenient temperature values higher than 1.000°C-1.200°C. A correct management of ladle heating and temperature keeping, allows to improve the main steel making parameters:

* Low liquid steel temperture changings before and after tapping

* Tapping temperature decrease at E.A.F. (5-10°C)

* Consumption reduction of expensive energy (i.e. reduction electrical energy of the E.A.F.)

* Electrode consumption reduction of the E.A.F.

* Reduction of Tap to Tap time at E.A.F.

* Increase of E.A.F. productivity

* Guarantee of casting start in the C.C.M.

* Low ladle refractory lining consumption

* Increase of safety refractory lining performances

* Elimination of liquid steel infiltrations trough / behind the working lining

Ladle Preheaters Combustion Technology Should be :

* High efficiency gas – air burners

* High velocity and long flame burners

* Pulse firing burners or modulating burners

* Low NOx emissions of burners

* Burnes designed and manufactured with special refractory steel parts for long life time of operation

* Micro / PLC Automatic control of burners combustion ratio

* Automatic and efficient control of ladle temperature

* High preheating performances

* Extraordinary uniformity of ladle lining temperature

* Low gas consumption

* Shorter drying – preheating time

* Significant energy saving compared to usual technology

* High efficiency thermal recuperators (additonal energy saving 30%)

* Burners available for natural gas, L.P.G., Diesel oil, Coke oven gas

* Emission rates according to E.C.C. standards

* Exhaust fumes system and post-combustion system for dangerous and smoking emissions