AISTech 2016

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Worldwide Experience in Operating Hot Blast Systems over 30+ Year Campaigns (Room 405)

16 May 16
10:30 AM - 11:00 AM

Tracks: BF Equipment, Blast Furnace Stove Refractories & Operations I

Hot Blast Stove Technology has been developed to such an extent that low cost hot metal production for over 30 years without major repairs has become achievable, making the decision for a campaign length between 5 to over 30 years a design choice for the plant owner/operator. Some of the earlier examples of designs capable of such long campaign lengths are currently beyond the 30th or even 40th year of their running campaign. These examples are found especially in Europe and North America. This article presents operational experiences over these exceptionally long campaigns as well as the current condition of these systems. The relevance of several design aspects for achieving such long campaigns is discussed.