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Title:
FURNACE, METHOD AND MONITORING SYSTEM FOR MONITORING ITS CONDITION
Document Type and Number:
WIPO Patent Application WO2004015349
Kind Code:
A3
Abstract:
A furnace, the furnace comprising: (a) a heat source (80); (b) a container containing said heat source, said container comprising a refractory lining (30) comprising a first refractory lining layer (AO) adjacent to said heat source, and a container wall (40) comprising at least one intermediate layer (W2, W3) and an outer wall (W1) having an outer surface (41) distal from said heat source, said heat source providing a temperature profile in said refractory lining and in said container wall; and (c) at least one optical waveguide adapted for monitoring said temperature profile by optical back scattering measurement; said at least one optical waveguide being located between said first refractory lining layer and said outer surface of said outer wall; preferably an induction furnace with induction coil (60); a system of such furnaces; a mat comprising at least one optical waveguide adapted to be located between said first refractory lining layer and said outer surface of said outer wall in such a furnace; a method of thermally monitoring the condition of a furnace; a monitoring system for monitoring the condition of a refractory lining of a melting furnace.

Inventors:
SCHMITZ WILFRIED (DE)
HOFF HENRIK (DE)
Application Number:
PCT/EP2003/008705
Publication Date:
April 22, 2004
Filing Date:
August 06, 2003
Export Citation:
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Assignee:
LIOS TECHNOLOGY GMBH (DE)
JUNKER GMBH O (DE)
SCHMITZ WILFRIED (DE)
HOFF HENRIK (DE)
International Classes:
C21B7/24; C21B9/00; F27B14/20; F27D19/00; F27D21/00; (IPC1-7): F27B14/20; F27D21/00; C21B7/24; C21B9/00; F27D19/00
Foreign References:
EP0519231A21992-12-23
US5356220A1994-10-18
EP0692705B11998-03-11
DD240947A11986-11-19
Other References:
PATENT ABSTRACTS OF JAPAN vol. 016, no. 283 (C - 0955) 24 June 1992 (1992-06-24)
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 12 25 December 1997 (1997-12-25)
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