Thermal measuring and testing – Thermal testing of a nonthermal quantity
Patent
1998-12-24
1999-11-02
Gutierrez, Diego
Thermal measuring and testing
Thermal testing of a nonthermal quantity
374 7, 374166, G01K 700, G01N 2572, G01N 2520
Patent
active
059757540
ABSTRACT:
A method is provided for extending the life of a refractory lining of a blast furnace hearth. 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 isotherm 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. From this determination sufficient thickness of the protective layer is maintained during actual operation of the furnace.
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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.
Groth Richard J.
Zhao Yongfu
Fernandez Maria
Gutierrez Diego
Riesmeyer, III William F.
USX Corporation
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