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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 15a
SUMMARY:Experiences of the shotcrete repairs at blast furnace 2 in Schwelgern at tkSE
DESCRIPTION:Due to premature wear accompanied by hot spots on the shell in the bosh and belly area of Blastfurnace 2 in Schwelgern a shotcrete repair by roboter became necessary. With a hearth diameter 14.9m and a production of up 12.000t/d Schwelgern BF2 is the largest BF in Europe. For the bosh and belly area that means a diameter of approx. 20m and a depth of 25m. This was the first time for this kind of repair in this area of a BF at Schwelgern. This work shall give an overview of the planning and the execution of the work on site done by thyssenkrupp Steel Europe AG, Refratechnik Steel GmbH and Dominion Deutschland GmbH. Which means on the one hand the planning of the blow-down process with the aim of not having to remove burden via tuyere area. The activities done in the casthouse if this should have been necessary and an overview of the success of the blow-down procedure
Additionally it will be given an overview of why the applied refractory, Refrajetcrete with Hybrid technology from Refratechnik Steel GmbH, was chosen. The third point will focus on the used shotcrete roboter from the compamny of Dominion Deutschland GmbH. With the focus on why it was choosen and what changes had to be applied on the roboter to grant success on site for the use in the bosh and belly area.

CLASS:PUBLIC
DTSTART:20230615T100000
DTEND:20230615T102000
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