Kivcet furnace construction

Perillo, A, Carminati, A, Schueimann, P and Berger, N, 1990. The Kivcet furnace construction at Porto Vesme in Proceedings Lead-Zinc 90, The Minerals, Metals and Materials Society (TMS) Symposium, Anaheim, pp 903-917. 

The sidewalls of the KIVCET furnace are constructed with water-cooled copper jackets. A total of two hundred and seven independent cooling elements are supplied through a eentral distribution system. The cooling water is maintained at 40°C and the outlet temperature is measured frequently to monitor jacket integrity. Typieal outlet temperatures are 43-50°C depending on jacket location. Tap-hole insert temperatures are monitored during tapping. Typically each tap-hole insert will have a service life of two himdred taps. 

Maintenance materials are simply estimated as 2.5 per cent of the direct construction capital cost for each Section. This cost will be lower for a new plant but should rise to the 2.5 per cent level for a well established plant. Coal is used in the Kivcet furnace at a cost of US 80/t in place of coke used for the blast furnace at US 160/t. 

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