Process Engg > Tools > LFOR (Ladle Furnace On-line Reckoner)
LFOR (Ladle Furnace On-line Reckoner)

About the simulator

In today's competitive business environment, steel producers worldwide are striving for productivity with consistent quality at the lowest possible cost. Ladle furnaces are a key unit in secondary steel making and contribute significantly towards meeting these objectives.

Now, with LFOR, the steel maker can achieve these goals. LFOR is a model-based on-line advisory system for prediction and control of temperature and chemistry of steel in ladle furnaces. This system has been developed, tested and implemented by Tata Research Development and Design Center (TRDDC), Pune

For continuous casting, LFOR ensures target temperature and chemistry of steel at LF station through its intelligent advice on arcing and additions. Changes in plant logistics are addressed dynamically through revised advice.

By continuous prediction of bath temperature and chemistry, LFOR acts as a soft-sensor of the LF process, leading to reduction in temperature measurement, sampling and analysis, which in turn, decreases process cost.

In the present day competitive market, steel producers are striving for high-speed casting with stringent and consistent quality as well as reduced cost of production. Ladle furnace is a key unit for meeting the above objectives during secondary steel making linked to the continuous casting process. Therefore, accurate control of process parameters during ladle processing of steel is essential. To address this challenging demand, ladle furnace on-lie reckoner (LFOR) was developed. The LFOR is a model based advisory system for prediction and control of temperature and chemistry in the ladle furnace. The thermal and chemistry models use approaches based on both simplified physics as well as semi-statistical methods.

Benefits of LFOR :

  • Temperature at LF-out within +- 5 deg C

  • Composition within a narrow band

  • Cost savings through optimum alloy/deoxidizer additions

  • Reduction in use of thermocouples (typically from 5 to 3)

  • Reduction in chemistry sampling (typically from 3 to 2)

  • Reduction in off-grades

  • Energy savings through optimum arcing

  • Heat pacing for sequence casting

  • ROI within one year