Start-up and Results of the EAF Consteel~? Plant of Celsa Nordic - Mo i Rana (Norway)

摘要

In 2007 Celsa Nordic, part of Celsa Group, one of the most diversified European private steelmaking groups, has decided to upgrade its Mo I Rana Norwegian plant installing a new Tenova EAF-Consteel~?. The new EAF will keep either the same nominal capacity of the existing furnace (83 ton). Thanks to the installation of the Consteel? continuous scrap charging technology, the new EAF will increase its productivity by 20% passing from the actual 700.000 to 850.000 ton per year although, with the existing transformer and decreasing the consumption considerably. In spite of the increase of productivity the upgrade with the Consteel will guarantee a tremendous reduction of the environmental impact. This paper summarizes the results achieved in 2009 and the practices used to manage the melting process. Moreover the paper describes the new innovative fume dedusting system designed by Tenova for Mo I Rana plant in order to furtherly low the emissions.