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7. Economic aspects
The cost of liquid pig iron depends on many factors. The main considerations are described below.
7.1 Loads loaded
Metallic charges are the main cost item for liquid pig iron in the cupola furnace, accounting for over 70%. The expensive components of the melting bed are new cast iron and ferroalloys, while the cheapest are steel and shavings.
Smelting processes that increase the proportion of steel and bocage are obviously of the greatest interest; this is the main justification for the hot blast that enables new cast iron to be replaced by steel. The use of steel leads to increased consumption of coke and ferroalloys (especially Si). Steel can replace 100% of new cast iron for hot-blast cupola furnaces, but requires further development...
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Economic aspects
Developments in cupola technology
Bibliography
Events
Second international cupola conference in Trier in 2004.
Standards and norms
- Détermination de la densité du coke. - NF ISO 1014 - (2004-04-1)
- Résistance à la fragmentation et résistance à l'abrasion du coke. - NF M 03-0346 -
- Détermination de la concentration massique en CO dans l'air ambiant. - NF EN 15058 - (juillet 2006)
- Détermination de la quantité massique de poussières dans l'air ambiant. - NF EN 13284-1 - (mai 2001)
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