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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 13
SUMMARY:Case study: Laser OES slag analysis in daily use
DESCRIPTION:Make the slag and the steel makes itself. This phrase illustrates the important role of slag in steel making. In particular, the increasing efforts in the direction of resource efficiency lead to an increasing demand for accurate slag work. DRI, alternate fuels and secondary raw materials on all routes lead to the import of more and more undesirable elements into the manufacturing process. On the other hand the composition of the slag was one of the last great unknowns of the steelmaking process (at least in-situ). Various workarounds tried to mitigate this issue more or less successfully. However, workarounds can not meet the ideal solution and they do not solve to the actual problem. 

For this reason, the confidential_steel_plant_disclosure_in_spring_23 has decided to test the fast slag analysis with laser OES. First in the context of a test setup in the central laboratory. After an adaptation period of approx. 2 months, slag samples are analyzed in daily use within approximately 17 seconds. Including sampling, sample shipment In this way, slag work can be carried out virtually without any waiting time on the basis of precise analysis results. In this way, slag work can be carried out virtually without any waiting time on the basis of precise analysis results. Due to the substantial added value, 2 devices have been purchased in spring 2023.

The associated fast and precise adjustment of the slag has been proven to increase the cleanliness of the steel which lead to a reduced scrap rate in the end of the line. Furthermore, the tap-to-tap time in the ladle furnace has been reduced by an average of around 4 minutes, which in turn results in corresponding energy savings and increased yield.
All in all, the investment in the fast slag analysis thus paid for itself within 5-6 months.
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DTSTART:20230614T121000
DTEND:20230614T123000
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