Tuyere is a water-cooled cast copper device that allows hot blast to be blown into the raceway of Blast Furnace. Despite several developments in tuyere life reliability Blast furnaces are still suffering with tuyere burning problems. Tuyere burning not only governs the productivity loss but also introduces condition of furnace instability, increased costs and fuel rate. In recent operation of H Blast furnace, tuyere burning is one of the prime causes for furnace stoppages and hot metal production loss. Tuyere burning data shows that apart from tuyere design, furnace operation and process parameter have significant contribution in tuyere burning rate.
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