Advances in continuous monitoring of water-cooled tapblocks for pyrometallurgical furnaces

CIM Journal, Vol. 4, No. 1, 2013
P. Gebski, A. Sadri, W. L. Ying Hatch, Sheridan Science and Technology Park, Mississauga, ON D. George-Kennedy, C. Nexhip, D. Krippner, and R. Kaur Kennecott Utah Copper Smelter (KUCS), Magna, UT
Abstract



Water-cooled tapblocks are essential components of modern
smelting furnaces. Uninterrupted operation of a tapblock is critical for the
optimal operation of a furnace. This critical function, together with exposure
to extreme conditions, drives the need for an efficient and reliable means for
tapblock monitoring. The main objective of tapblock monitoring is to help
optimize the life of the tapblocks by better scheduling inner refractory
relining and protecting operators by preventing sudden deterioration of the
tapblock. A taphole acoustic monitoring (TAM) system was developed to meet the
above requirements. This paper describes the principles of the TAM system and
selected case studies.
Keywords: Taphole, Flash furnace, Monitoring, Electric furnace, Copper smelting, Non-destructive testing (NDT), Acoustic Emission (AE), Refractory wear, Tapping, Predictive maintenance
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