Determining protective layer thickness of blast furnaces

Details Determining protective layer thickness of blast furnaces Determining protective layer thickness of blast furnaces

1998-12-24

1999-10-05

Gutierrez, Diego

Thermal measuring and testing

Distance or angle

Thickness, erosion, or deposition

374166, 374179, G01K 704, G01N 2572

Patent

active

059612142

ABSTRACT:
A method is provided for determining the thickness of a protective layer of solidified metal skull formed on the refractory hearth of a blast furnace. The refractory hearth has temperature probes embedded in the floor and walls thereof. The method includes periodically measuring temperatures indicated by the probes and determining the campaign maximum and current average temperature readings to locate two solidification isotherms representing the wear line of the refractory and the inner surface of the protective metal layer. The thickness of the protective layer is determined from the distance between the solidification isotherms representing the refractory wear line and the inner surface of the metal skull.

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Evaluation of Mathematical Model for Estimating Refractory Wear and Solidified Layer in the Blast Furnace Hearth Suh Young-Keun, et al. ISIJ 1994 pp. 223-228.

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