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Model of Blast Furnace Hearth Drainage
Author(s) -
Shao Lei,
Saxén Henrik
Publication year - 2012
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201100215
Subject(s) - blast furnace , hearth , yield (engineering) , drainage , environmental science , engineering , metallurgy , materials science , waste management , ecology , biology
The hearth plays an important role in the operation of the ironmaking blast furnace (BF). A simplified simulation model of the hearth based on the general principles of liquid drainage has been extended to make the model more practical and comprehensive. The tap rates of the liquids are determined by production and taphole conditions, including taphole diameter and length, and the tap‐end conditions are iteratively calculated to yield a quasi‐stationary tap cycle. The model, which considers both a sitting and a (partially) floating dead man, is illustrated with the use of a set of examples, where the effect of variables on the drainage behavior is studied. The model is finally validated by applying it to short‐term data from an industrial BF.