TY - JOUR
T1 - DEM analysis on size segregation in feed bed of sintering machine
AU - Nakano, Masanori
AU - Abe, Tsukasa
AU - Kano, Junya
AU - Kunitomo, Kazuya
PY - 2012
Y1 - 2012
N2 - Discrete element method (DEM) was applied to charging process in iron ore sintering and vertical size segregation in the feed bed was anlyized, where a particular charactor of sintering feed, plastisity and stikiness, was expressed by adjusting the rolling friction coefficient to fit a result from a preliminary test on sintering feed flowing out of a box. DEM simulations and comparison with plant data gave the following findings: 1) When the rolling coefficient was 4.0, the calculation resembled the experiment in terms of the angle and the spread of feed after resting. 2) The simulation for a charging apparatus recreated vertical size segregation in feed bed in good agreement with plant data. 3) The simulation showed that the size segregation increased with decreasing chute angle, the change of which was explained with the fact that the horizontal velosity of particle at the bottom end of the chute also increased unless the feed made a build-up on the chute.
AB - Discrete element method (DEM) was applied to charging process in iron ore sintering and vertical size segregation in the feed bed was anlyized, where a particular charactor of sintering feed, plastisity and stikiness, was expressed by adjusting the rolling friction coefficient to fit a result from a preliminary test on sintering feed flowing out of a box. DEM simulations and comparison with plant data gave the following findings: 1) When the rolling coefficient was 4.0, the calculation resembled the experiment in terms of the angle and the spread of feed after resting. 2) The simulation for a charging apparatus recreated vertical size segregation in feed bed in good agreement with plant data. 3) The simulation showed that the size segregation increased with decreasing chute angle, the change of which was explained with the fact that the horizontal velosity of particle at the bottom end of the chute also increased unless the feed made a build-up on the chute.
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U2 - 10.2355/isijinternational.52.1559
DO - 10.2355/isijinternational.52.1559
M3 - Article
AN - SCOPUS:84866349841
VL - 52
SP - 1559
EP - 1564
JO - Transactions of the Iron and Steel Institute of Japan
JF - Transactions of the Iron and Steel Institute of Japan
SN - 0915-1559
IS - 9
ER -