Abstract
Segregation patterns of binary particle mixtures of different densities during emptying after filling of a two-dimensional hopper were theoretically analyzed on the basis of a proposed mathematical model. It includes the segregation process over an inclined heap surface and a velocity profile in the radial direction toward the hopper apex. As a result, it was found that the segregation time zone during emptying as mixing ratio versus discharge time expands and the value of the maximum points in the segregation profile decreases with the increase in the volumetric initial mixing ratio of the denser component and the volumetric feed rate, and that the zone shrinks with the increase in the apex angle and the discharge rate. The steeper radial velocity profile inside the hopper results in a slightly non-uniform time-segregation profile. The initial mixing ratio changes the segregation time zone more than the discharge rate.
| Original language | English |
|---|---|
| Pages (from-to) | 333-347 |
| Number of pages | 15 |
| Journal | Advanced Powder Technology |
| Volume | 14 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2003 |
| Externally published | Yes |
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Keywords
- Batch operation
- Binary particle mixture
- Density segregation
- Theoretical analysis
- Two-dimensional hopper
ASJC Scopus subject areas
- Chemical Engineering(all)
Cite this
Density segregation of a binary solids mixture during batch operation in a two-dimensional hopper. / Shinohara, Kunio; Golman, Boris.
In: Advanced Powder Technology, Vol. 14, No. 3, 2003, p. 333-347.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Density segregation of a binary solids mixture during batch operation in a two-dimensional hopper
AU - Shinohara, Kunio
AU - Golman, Boris
PY - 2003
Y1 - 2003
N2 - Segregation patterns of binary particle mixtures of different densities during emptying after filling of a two-dimensional hopper were theoretically analyzed on the basis of a proposed mathematical model. It includes the segregation process over an inclined heap surface and a velocity profile in the radial direction toward the hopper apex. As a result, it was found that the segregation time zone during emptying as mixing ratio versus discharge time expands and the value of the maximum points in the segregation profile decreases with the increase in the volumetric initial mixing ratio of the denser component and the volumetric feed rate, and that the zone shrinks with the increase in the apex angle and the discharge rate. The steeper radial velocity profile inside the hopper results in a slightly non-uniform time-segregation profile. The initial mixing ratio changes the segregation time zone more than the discharge rate.
AB - Segregation patterns of binary particle mixtures of different densities during emptying after filling of a two-dimensional hopper were theoretically analyzed on the basis of a proposed mathematical model. It includes the segregation process over an inclined heap surface and a velocity profile in the radial direction toward the hopper apex. As a result, it was found that the segregation time zone during emptying as mixing ratio versus discharge time expands and the value of the maximum points in the segregation profile decreases with the increase in the volumetric initial mixing ratio of the denser component and the volumetric feed rate, and that the zone shrinks with the increase in the apex angle and the discharge rate. The steeper radial velocity profile inside the hopper results in a slightly non-uniform time-segregation profile. The initial mixing ratio changes the segregation time zone more than the discharge rate.
KW - Batch operation
KW - Binary particle mixture
KW - Density segregation
KW - Theoretical analysis
KW - Two-dimensional hopper
UR - http://www.scopus.com/inward/record.url?scp=0037592763&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037592763&partnerID=8YFLogxK
U2 - 10.1163/15685520360685974
DO - 10.1163/15685520360685974
M3 - Article
AN - SCOPUS:0037592763
VL - 14
SP - 333
EP - 347
JO - Advanced Powder Technology
JF - Advanced Powder Technology
SN - 0921-8831
IS - 3
ER -