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ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Lloyd“
SUMMARY:Automated systems for control lining wear, heat losses and charging model on blast furnaces: experience in Ukraine
DESCRIPTION:The implementation of Pulverized Coal Injection (PCI) technology has reduced the lifetime of lining and cooling systems on Blast Furnaces in Ukraine. Efficient long-lasting operation with PCI required a new approach to furnace design and systems to control technical condition and thermal work of blast furnaces. 
Six blast furnaces of “MetInvest” have been upgraded to work with 160 kg/t PCI since 2014. These changes include: shaft cast-iron cooling plates replaced with copper; evaporative cooling system updated to modern cooling system having "cold" chemically purified water; profile design changed and furnaces equipped with Bell Less Top (BLT).
In accordance with proposals of the Institute of Ferrous Metallurgy of National Academy of Science of Ukraine these blast furnaces were equipped with automated monitoring scheme of shaft-lining wear and in the hearth, thermal losses in the cooling system and also providing coke compensation calculations. 
One of the furnaces was equipped with the BLT charging model make available burden calculations and distribution. The mathematical models provide operators with critical information impacting the furnace operations on lining wear, skull formation, heat loads and losses on the shaft and hearth. 
This information is used for decision-making on optimization smelting regimes with PCI, which ensure the performance and efficiency while maintaining a lining and ensuring the safety of blast furnace operation.
The automated system characterized the cooling system heat losses with 10 - 45 kg/t of coke required for compensation and established the dependency of blast furnace design and technical condition, loading parameters and operations technology. A reduction of specific coke rate of 2 – 20 kg/t was realized using the BLT charging model (varying by actual conditions.)

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DTSTART:20220632T105000
DTEND:20220632T111500
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