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Model investigations of slag flow during last stages of ladle teeming
Author(s) -
Andrzejewski Peter,
Diener Arnulf,
Pluschkell Wolfgang
Publication year - 1987
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.198700068
Subject(s) - ladle , steelmaking , water model , slag (welding) , continuous casting , sink (geography) , flow (mathematics) , metallurgy , mechanics , materials science , chemistry , computational chemistry , cartography , physics , geography , molecular dynamics
In order to study slag carryover during ladle teeming, the last stage of ladle draining is simulated by means of a 1:1 scale water model with reduced wall height. The flow phenomenon “drain sink” is found to be responsible for slag carryover. A drain sink occurs if the volume flow of the open channel at the ladle bottom becomes less than the corresponding outlet capacity. This explanation is confirmed quantitatively by experimental data and a simple hydraulic model as well as by steelmaking experiments. At present, a gravimetric method of slag flow detection is being tested in the continuous casting plant.