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Refractory Erosion Index in Electric Arc Furnaces

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Abstract

Empirical work shows that refractory damage in electric steel furnaces is dependent on arc power and arc voltage. Their product has been used as an index of refractory erosion. This paper derives a theoretical basis for the index and shows that it is numerically equal to the radiation intensity at the hot spots on the furnace walls. An index of arc heat transfer to the furnace hearth is also presented and is shown to be equal to the power entering the furnace hearth through the foot of the arc. It exhibits a maximum at a current beyond the optimum value as observed in operating practice.

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References

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Authors
  1. M. M. Munroe
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Additional information

M.M. Munroe received his Ph.D. in electrical and electronic engineering from the University of Bradford, England, in 1978. He is currently Senior Lecturer and C_rdinator of the Industrial Physics Program at the Sch_l of Natural and Applied Sciences of the Federal University of Technology in Owerri, Nigeria.

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Munroe, M.M. Refractory Erosion Index in Electric Arc Furnaces. JOM 38, 51–52 (1986). https://doi.org/10.1007/BF03257956

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  • DOI: https://doi.org/10.1007/BF03257956

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