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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Lloyd“
SUMMARY:Application of slag holdup index in the dripping zone of the blast furnace
DESCRIPTION:The flow of slag through the coke bed largely influences the gas permeability in the dripping zone. The controlling parameters during the furnace operations are found to show a noticeable correlation with the conceptual slag holdup index. The relationship between the slag holdup index and plant data from the blast furnace (inner volume of 5250 m3) at the Hyundai Steel Company is analyzed. A practical range of the holdup index is derived based on three months of plant data. All the monitoring values in the furnace operation such as temperature, pressure from sensors, and the compositions/physical properties of the burden materials, etc. are used as-is. The mean size of the coke in the lower part of the furnace is predicted based on several times of coke sampling from the tuyeres. The voidage of the coke bed is derived from the measurement of the size distribution ratio of coke charges. A thermochemical software FactSage is used to calculate the slag viscosity. The guideline of operational parameters such as CaO/SiO2 basicity, wt%Al2O3 in burden materials, and the mean diameter of the coke charge are obtained in terms of the slag holdup index.
CLASS:PUBLIC
DTSTART:20220631T134500
DTEND:20220631T141000
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