Distribution of fines during percolation segregation for varying particle bed depths

Jaskaran S. Gill, Anjani K. Jha, Virendra Puri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Percolation segregation mechanism is one of the most commonly observed but one of the lesser understood segregation mechanisms in powder industry. In percolation mechanism, the finer particles move downward through the pores of the coarser particles during shear and vibration. In this study, the distribution of fines during percolation segregation for varying depths of binary mixtures bed was studied during shear motion. Angular shaped potash fertilizer was selected for experimentation purpose. One absolute coarse size range of potash: 3,350-4,000 μm and two absolute fine size ranges of potash: 1,400-1,700 μm and 2,000-2,360 μm were mixed in three different mixing proportions (67:33, 50:50, and 33:67) by weight to make binary size mixtures of size ratios 2.4 and 1.7 (Coarse fine). The binary mixtures were tested for three bed depths (85 mm, 65 mm, and 42 mm) using the second generation primary segregation shear cell (PSSC-II). It was observed that for a particular mixing ratio and bed depth, majority of segregated fines were concentrated near the moving walls of shear box of PSSC-II. The segregated fines were most uniformly distributed for bed depth of 85 mm and mixing ratio of 33:67. The initial higher concentration of fines particles in the binary mixture for bed depth of 85 mm and for mixing ratio of 33:67 followed a free-fall convective segregation mechanism, resulting in uniform distribution of segregated fines across the collection pan. These qualitative observations were tested using two statistical approaches: the variance metrics and the ANOVA analyses.

Original languageEnglish (US)
Title of host publication2007 ASABE Annual International Meeting, Technical Papers
Volume8 BOOK
StatePublished - 2007
Event2007 ASABE Annual International Meeting, Technical Papers - Minneapolis, MN, United States
Duration: Jun 17 2007Jun 20 2007

Other

Other2007 ASABE Annual International Meeting, Technical Papers
CountryUnited States
CityMinneapolis, MN
Period6/17/076/20/07

Fingerprint

Potash
Binary mixtures
shears
Cell Separation
Fertilizers
Vibration
Powders
Analysis of Variance
Industry
potassium fertilizers
Analysis of variance (ANOVA)
Weights and Measures
vibration
powders
analysis of variance
potash
industry
cells

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)
  • Engineering(all)

Cite this

Gill, J. S., Jha, A. K., & Puri, V. (2007). Distribution of fines during percolation segregation for varying particle bed depths. In 2007 ASABE Annual International Meeting, Technical Papers (Vol. 8 BOOK)
Gill, Jaskaran S. ; Jha, Anjani K. ; Puri, Virendra. / Distribution of fines during percolation segregation for varying particle bed depths. 2007 ASABE Annual International Meeting, Technical Papers. Vol. 8 BOOK 2007.
@inproceedings{88c11deb3d834d40a4cfe95e27f5ba01,
title = "Distribution of fines during percolation segregation for varying particle bed depths",
abstract = "Percolation segregation mechanism is one of the most commonly observed but one of the lesser understood segregation mechanisms in powder industry. In percolation mechanism, the finer particles move downward through the pores of the coarser particles during shear and vibration. In this study, the distribution of fines during percolation segregation for varying depths of binary mixtures bed was studied during shear motion. Angular shaped potash fertilizer was selected for experimentation purpose. One absolute coarse size range of potash: 3,350-4,000 μm and two absolute fine size ranges of potash: 1,400-1,700 μm and 2,000-2,360 μm were mixed in three different mixing proportions (67:33, 50:50, and 33:67) by weight to make binary size mixtures of size ratios 2.4 and 1.7 (Coarse fine). The binary mixtures were tested for three bed depths (85 mm, 65 mm, and 42 mm) using the second generation primary segregation shear cell (PSSC-II). It was observed that for a particular mixing ratio and bed depth, majority of segregated fines were concentrated near the moving walls of shear box of PSSC-II. The segregated fines were most uniformly distributed for bed depth of 85 mm and mixing ratio of 33:67. The initial higher concentration of fines particles in the binary mixture for bed depth of 85 mm and for mixing ratio of 33:67 followed a free-fall convective segregation mechanism, resulting in uniform distribution of segregated fines across the collection pan. These qualitative observations were tested using two statistical approaches: the variance metrics and the ANOVA analyses.",
author = "Gill, {Jaskaran S.} and Jha, {Anjani K.} and Virendra Puri",
year = "2007",
language = "English (US)",
volume = "8 BOOK",
booktitle = "2007 ASABE Annual International Meeting, Technical Papers",

}

Gill, JS, Jha, AK & Puri, V 2007, Distribution of fines during percolation segregation for varying particle bed depths. in 2007 ASABE Annual International Meeting, Technical Papers. vol. 8 BOOK, 2007 ASABE Annual International Meeting, Technical Papers, Minneapolis, MN, United States, 6/17/07.

Distribution of fines during percolation segregation for varying particle bed depths. / Gill, Jaskaran S.; Jha, Anjani K.; Puri, Virendra.

2007 ASABE Annual International Meeting, Technical Papers. Vol. 8 BOOK 2007.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Distribution of fines during percolation segregation for varying particle bed depths

AU - Gill, Jaskaran S.

AU - Jha, Anjani K.

AU - Puri, Virendra

PY - 2007

Y1 - 2007

N2 - Percolation segregation mechanism is one of the most commonly observed but one of the lesser understood segregation mechanisms in powder industry. In percolation mechanism, the finer particles move downward through the pores of the coarser particles during shear and vibration. In this study, the distribution of fines during percolation segregation for varying depths of binary mixtures bed was studied during shear motion. Angular shaped potash fertilizer was selected for experimentation purpose. One absolute coarse size range of potash: 3,350-4,000 μm and two absolute fine size ranges of potash: 1,400-1,700 μm and 2,000-2,360 μm were mixed in three different mixing proportions (67:33, 50:50, and 33:67) by weight to make binary size mixtures of size ratios 2.4 and 1.7 (Coarse fine). The binary mixtures were tested for three bed depths (85 mm, 65 mm, and 42 mm) using the second generation primary segregation shear cell (PSSC-II). It was observed that for a particular mixing ratio and bed depth, majority of segregated fines were concentrated near the moving walls of shear box of PSSC-II. The segregated fines were most uniformly distributed for bed depth of 85 mm and mixing ratio of 33:67. The initial higher concentration of fines particles in the binary mixture for bed depth of 85 mm and for mixing ratio of 33:67 followed a free-fall convective segregation mechanism, resulting in uniform distribution of segregated fines across the collection pan. These qualitative observations were tested using two statistical approaches: the variance metrics and the ANOVA analyses.

AB - Percolation segregation mechanism is one of the most commonly observed but one of the lesser understood segregation mechanisms in powder industry. In percolation mechanism, the finer particles move downward through the pores of the coarser particles during shear and vibration. In this study, the distribution of fines during percolation segregation for varying depths of binary mixtures bed was studied during shear motion. Angular shaped potash fertilizer was selected for experimentation purpose. One absolute coarse size range of potash: 3,350-4,000 μm and two absolute fine size ranges of potash: 1,400-1,700 μm and 2,000-2,360 μm were mixed in three different mixing proportions (67:33, 50:50, and 33:67) by weight to make binary size mixtures of size ratios 2.4 and 1.7 (Coarse fine). The binary mixtures were tested for three bed depths (85 mm, 65 mm, and 42 mm) using the second generation primary segregation shear cell (PSSC-II). It was observed that for a particular mixing ratio and bed depth, majority of segregated fines were concentrated near the moving walls of shear box of PSSC-II. The segregated fines were most uniformly distributed for bed depth of 85 mm and mixing ratio of 33:67. The initial higher concentration of fines particles in the binary mixture for bed depth of 85 mm and for mixing ratio of 33:67 followed a free-fall convective segregation mechanism, resulting in uniform distribution of segregated fines across the collection pan. These qualitative observations were tested using two statistical approaches: the variance metrics and the ANOVA analyses.

UR - http://www.scopus.com/inward/record.url?scp=35648960192&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35648960192&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:35648960192

VL - 8 BOOK

BT - 2007 ASABE Annual International Meeting, Technical Papers

ER -

Gill JS, Jha AK, Puri V. Distribution of fines during percolation segregation for varying particle bed depths. In 2007 ASABE Annual International Meeting, Technical Papers. Vol. 8 BOOK. 2007