TY - JOUR
T1 - Validation of particle size segregation of sintered ore during flowing through laboratory-scale chute by discrete element method
AU - Mio, Hiroshi
AU - Komatsuki, Satoshi
AU - Akashi, Masatoshi
AU - Shimosaka, Atsuko
AU - Shirakawa, Yoshiyuki
AU - Hidaka, Jusuke
AU - Kadowaki, Masatomo
AU - Matsuzaki, Shinroku
AU - Kunitomo, Kazuya
PY - 2008
Y1 - 2008
N2 - In this paper, the particle size segregation of sintered ore during flowing through a laboratory-scale chute was investigated to validate the simulated results. The chute angle, installation of a damper at the outlet of the chute or the particle mixing condition were changed. The particles were segregated during flowing through the chute. The smaller particles were at the bottom wall of the chute, and the larger ones were on the smaller particles. The particle discharging velocity decreased with increasing the rolling friction in DEM, and the velocity also became uniformly. The particle discharging behavior under the large rolling friction was not spread, this phenomenon was not comparable with the experimental one. The distributed coefficient of rolling friction was determined by the distribution of rolled distance of sintered ore particle, and every particle in DEM had the different value according to the distribution of rolled distance. This method was effective for the sintered ores' flow very much, and the simulated particle size segregation agreed with those of experimental very well, irrespective of chute angle, installation of a damper or particle conditions. Therefore, this simulation has been validated for the analysis of the granular flow in an ironmaking process.
AB - In this paper, the particle size segregation of sintered ore during flowing through a laboratory-scale chute was investigated to validate the simulated results. The chute angle, installation of a damper at the outlet of the chute or the particle mixing condition were changed. The particles were segregated during flowing through the chute. The smaller particles were at the bottom wall of the chute, and the larger ones were on the smaller particles. The particle discharging velocity decreased with increasing the rolling friction in DEM, and the velocity also became uniformly. The particle discharging behavior under the large rolling friction was not spread, this phenomenon was not comparable with the experimental one. The distributed coefficient of rolling friction was determined by the distribution of rolled distance of sintered ore particle, and every particle in DEM had the different value according to the distribution of rolled distance. This method was effective for the sintered ores' flow very much, and the simulated particle size segregation agreed with those of experimental very well, irrespective of chute angle, installation of a damper or particle conditions. Therefore, this simulation has been validated for the analysis of the granular flow in an ironmaking process.
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U2 - 10.2355/isijinternational.48.1696
DO - 10.2355/isijinternational.48.1696
M3 - Article
AN - SCOPUS:60649108211
SN - 0915-1559
VL - 48
SP - 1696
EP - 1703
JO - isij international
JF - isij international
IS - 12
ER -