Vibration Analysis of Ladle Gas Stirring Using Cold Model and Plant Data
(Room 205B)
09 May 17
10:30 AM
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11:00 AM
Tracks:
Ladle Furnace Technologies & Processes
In ladle metallurgy, bottom inert gas stirring is mostly evaluated by assessing the level of meniscus disturbance and bubbling sound. However, this type of monitoring has significant limitations in process optimization. The present study investigates stirring phenomena using ladle wall vibration at a low flowrate on a laboratory and plant scale for the vacuum tank degasser. In the cold model, it was found that the combined vibration signal can predict the stirring power and re-circulation speed effectively in specific frequency ranges. Plant trials also revealed that there is high structure for the same frequency ranges of the cold model study.