Pneumatic Conveying Characteristics of Fine and Granular Bulk Solids

Fine and granular products possess significantly different pneumatic conveying characteristics. Fine products usually have smooth conveying characteristic curves from dilute- to dense-phase. Between dilute- and dense-phase there is a pressure...

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Main Authors: Renhu Pan, Bo Mi, Peter Wypych
Format: Article
Language:English
Published: Hosokawa Powder Technology Foundation 2014-05-01
Series:KONA Powder and Particle Journal
Online Access:https://www.jstage.jst.go.jp/article/kona/12/0/12_1994014/_pdf/-char/en
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author Renhu Pan
Bo Mi
Peter Wypych
author_facet Renhu Pan
Bo Mi
Peter Wypych
author_sort Renhu Pan
collection DOAJ
description Fine and granular products possess significantly different pneumatic conveying characteristics. Fine products usually have smooth conveying characteristic curves from dilute- to dense-phase. Between dilute- and dense-phase there is a pressure minimum curve. However, when granular products are conveyed between dilute- and dense-phase, significant fluctuations in pressure and vibration can occur along the pipeline. To obtain reliable operating conditions for the designed pneumatic conveying system, three semi-empirical correlations are developed in this paper for the calculation of the pressure minimum curve for fine powders and the boundaries between dilute-phase, unstable-zone and dense-phase flow for granular products in terms of particle properties and conveying conditions. Finally, a new procedure is presented for the prediction of total pipeline air pressure drop and the economic design of pneumatic conveying systems with the aim of reducing power consumption and particle damage.
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spelling doaj.art-35d492157e724019a34ba212450a00212022-12-21T23:43:29ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-05-01120778510.14356/kona.1994014konaPneumatic Conveying Characteristics of Fine and Granular Bulk SolidsRenhu Pan0Bo Mi1Peter Wypych2Department of Mechanical Engineering, University of WollongongDepartment of Mechanical Engineering, University of WollongongDepartment of Mechanical Engineering, University of WollongongFine and granular products possess significantly different pneumatic conveying characteristics. Fine products usually have smooth conveying characteristic curves from dilute- to dense-phase. Between dilute- and dense-phase there is a pressure minimum curve. However, when granular products are conveyed between dilute- and dense-phase, significant fluctuations in pressure and vibration can occur along the pipeline. To obtain reliable operating conditions for the designed pneumatic conveying system, three semi-empirical correlations are developed in this paper for the calculation of the pressure minimum curve for fine powders and the boundaries between dilute-phase, unstable-zone and dense-phase flow for granular products in terms of particle properties and conveying conditions. Finally, a new procedure is presented for the prediction of total pipeline air pressure drop and the economic design of pneumatic conveying systems with the aim of reducing power consumption and particle damage.https://www.jstage.jst.go.jp/article/kona/12/0/12_1994014/_pdf/-char/en
spellingShingle Renhu Pan
Bo Mi
Peter Wypych
Pneumatic Conveying Characteristics of Fine and Granular Bulk Solids
KONA Powder and Particle Journal
title Pneumatic Conveying Characteristics of Fine and Granular Bulk Solids
title_full Pneumatic Conveying Characteristics of Fine and Granular Bulk Solids
title_fullStr Pneumatic Conveying Characteristics of Fine and Granular Bulk Solids
title_full_unstemmed Pneumatic Conveying Characteristics of Fine and Granular Bulk Solids
title_short Pneumatic Conveying Characteristics of Fine and Granular Bulk Solids
title_sort pneumatic conveying characteristics of fine and granular bulk solids
url https://www.jstage.jst.go.jp/article/kona/12/0/12_1994014/_pdf/-char/en
work_keys_str_mv AT renhupan pneumaticconveyingcharacteristicsoffineandgranularbulksolids
AT bomi pneumaticconveyingcharacteristicsoffineandgranularbulksolids
AT peterwypych pneumaticconveyingcharacteristicsoffineandgranularbulksolids