Metallurgical apparatus – Process
Patent
1980-07-07
1981-05-26
Andrews, M. J.
Metallurgical apparatus
Process
266 99, 174102P, 73 86, 324 65CR, 324 585B, C21B 500
Patent
active
042693977
ABSTRACT:
A method for measuring the thickness of a refractory laid-up against the interior surface of the steel shell of a metallurgical apparatus includes placing at least one monitoring device in a critical wear area of the apparatus in a manner such that the free end of the device is at a known distance from the hot face of the refractory and the confined end extends beyond the outer surface of the steel shell. The device is connected to an electronic time-domain reflectometer by electrical connecting means. Timed pulses are generated and impressed in the device by the instrument and reflections of the pulses are received by and are visually displayed on the reflectometer. The length of the device appears on the display as a straight line bounded by two inflections. The straight line is indicative of the thickness of the refractory.
The device includes a metallic conductor coaxial with an outer metallic sheath and separated therefrom by a refractory having a desired dielectric constant. The device has a free end and a confined end. The confined end may be contained in a junction box provided with electrical connecting means. Electric insulating packing may be used in the junction box.
REFERENCES:
patent: 2805272 (1957-09-01), Postal
patent: 2915305 (1959-12-01), Craig
patent: 3015950 (1962-01-01), Doctor et al.
patent: 3018663 (1962-01-01), Dunlop
patent: 3307401 (1967-03-01), Backman
patent: 3836402 (1974-09-01), Zysk et al.
patent: 3938385 (1976-02-01), Horwath
Shiraiwa et al., Tetsu-to-Hagane, v. 61, 1975, n. 4, p. 44.
Shoemaker Bruce F.
Snyder Joseph E.
Strimple Robert A.
Andrews M. J.
Bethlehem Steel Corporation
O'Keefe Joseph J.
Simitz John S.
Wilkinson Charles A.
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