Standard Article

Handling of Particulate Solids

  1. Hermann J. Feise,
  2. Thomas Letzelter

Published Online: 15 SEP 2010

DOI: 10.1002/14356007.b02_08.pub2

Ullmann's Encyclopedia of Industrial Chemistry

Ullmann's Encyclopedia of Industrial Chemistry

How to Cite

Feise, H. J. and Letzelter, T. 2010. Handling of Particulate Solids. Ullmann's Encyclopedia of Industrial Chemistry. .

Author Information

  1. Chemical and Process Engineering, BASF SE, Ludwigshafen, Germany

Publication History

  1. Published Online: 15 SEP 2010

Abstract

The article contains sections titled:

1.Introduction
2.History
3.Characterization of Bulk Solids
3.1.Particle Properties
3.2.Bulk Solids Properties
3.2.1.Bulk Solids Density
3.2.2.Angle of Repose
3.2.3.Angle of Slide
3.2.4.Wall Friction
3.2.5.Internal Friction
3.2.6.Flow Properties
3.2.7.Lateral Stress Ratio
3.2.8.Fluidization Properties
4.Storage of Bulk Solids
4.1.Flow Patterns in Silos
4.2.Flow Problems
4.3.Caking of Bulk Solids
4.3.1.Significance of Time Consolidation
4.3.2.Caking Mechanisms
4.3.3.Formation of Solid Bridges
4.3.4.Solutions to Caking Problems
4.4.Stress Patterns
4.5.Janssen Equation
4.6.Silo Design
4.6.1.Hopper Design
4.6.2.Outlet Design
4.6.3.Silo Shapes
4.6.4.Design Standards
5.Transport of Bulk Solids
5.1.Selection of a Transportation System
5.2.Pneumatic Conveying
5.2.1.State Diagram of Pneumatic Conveying
5.2.2.Estimation of Pressure Drop
5.2.3.Basic Components of a Pneumatic Conveying System
5.2.4.Classification of Pneumatic Conveying Systems
5.3.Mechanical Conveying
5.3.1.Screw Conveyors and Screw Feeder
5.3.2.Belt Conveyors
5.3.3.Vibratory Conveyors
5.3.4.Elevators
5.3.5.En Masse Conveyors
5.3.6.Apron Feeders
5.3.7.Rotary Table Feeders
5.4.Hydraulic Conveying
5.4.1.Classification of Slurries
5.4.2.Principles of Design Calculations
5.4.3.Pump Selection
5.5.Dosing of Bulk Solids
5.5.1.Volumetric Feeders
5.5.2.Gravimetric Feeders
5.5.3.Mass Flow Measurement
6.Acknowledgements