Pneumatic Conveying Design Guide

Pneumatic Conveying Design Guide

1st Edition - January 1, 1990

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  • Author: David Mills
  • eBook ISBN: 9781483144597

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Pneumatic Conveying Design Guide is a guide for the design of pneumatic conveying systems and includes detailed data and information on the conveying characteristics of a number of materials with a wide range of properties. This book includes logic diagrams for design procedures and scaling parameters for the conveying line configuration. It also explains how to improve the performance of pneumatic conveyors by optimizing, uprating, and extending the system or adapting it for a change of material. This book consists of 15 chapters divided into three sections and opens with an overview of the state of the art on pneumatic conveying, along with definitions of the terms used in pneumatic conveying. The next chapter describes the various types of pneumatic conveying systems and the parameters that influence their capabilities in terms of material flow rate and conveying distance. The discussion then turns to feeding and discharging of the conveying line; selection of a pneumatic conveying system for a particular application; and design procedures for pneumatic conveying system. The theory and use of compressed air in pneumatic conveying are also considered, along with the effect of material properties on conveying performance; troubleshooting; and operational problems and some solutions. The final chapter is devoted to the use of bench-scale test methods to determine the material properties relevant to pneumatic conveying. This monograph is intended for designers and users of pneumatic conveying systems.

Table of Contents

  • Part A Introduction

    1 Introduction to the Guide



    1.1. Introduction

    1.2. Availability of Design Data

    1.3. Scope of the Work

    1.4. Review of Chapters

    1.5. Use of the Guide

    1.6. Definitions

    1.7. Nomenclature

    1.8. Conversion Factors

    1.9. Formula

    2 Types of Pneumatic Conveying System



    2.1. Introduction

    2.2. System Capabilities

    2.3. Types of Conventional Pneumatic Conveying System

    2.4. System Selection Considerations

    2.5. Innovatory Systems

    3 Feeding and Discharging the Conveying Line



    3.1. Introduction

    3.2. Feeding the Conveying Line

    3.3. Discharging the Conveying Line

    4 Selection of a Pneumatic Conveying System for a Particular Application



    4.1. Introduction

    4.2. Variables Involved

    4.3. Variables Investigated

    4.4. Material Compatibility

    4.5. Design Curves

    4.6. Power Requirements

    4.7. System Selection Considerations

    Part B System Design

    5 Pneumatic Conveying System Design Procedures



    5.1. Introduction

    5.2. The Use of Equations in System Design

    5.3. The Use of Test Data in System Design

    5.4. Design Considerations for Multiple Use Systems

    6 Theory and Use of Compressed Air in Pneumatic Conveying



    6.1. Introduction

    6.2. The Influence of Pressure

    6.3. The Influence of Temperature

    6.4. Air Humidity and Moisture

    6.5. Air Requirements for Air-assisted Gravity Conveyors

    6.6. Types of Air Mover

    6.7. Power Requirements

    6.8. Power Costs

    7 Determination and Use of Conveying Characteristics in the Pipeline



    7.1. Introduction

    7.2. Single-phase Flow

    7.3. Two-phase Flow (Material Conveying)

    7.4. The Determination of Conveying Characteristics

    7.5. The Use of Conveying Characteristics

    8 Effect of Material Properties on Conveying Performance



    8.1. Introduction

    8.2. Material Categorization

    8.3. Material Testing

    8.4. Conveying Capability Correlations

    8.5. Material Flow Rate Capability Correlations

    9 Design of the Conveying Line Layout



    9.1. Introduction

    9.2. Empty Pipeline Relationships

    9.3. Material Conveying - Pipeline Scaling Parameters

    10 Design of the Total Conveying System



    10.1. Introduction

    10.2. Decision Stages

    10.3. System Requirements

    10.4. Material Properties

    10.5. Analysis of Blow Tank Cycles

    10.6. Capital Costs and Operating Costs

    Part C Applications

    11 Optimizing and Uprating Existing Systems



    11.1. Introduction

    11.2. Application of Conveying Line and Blower Characteristics - Case Study

    11.3. Optimizing an Existing System

    11.4. The Effect of Material Type - Case Study

    11.5. Feeding the Pipeline - Case Study

    12 Operational Problems and Some Solutions



    12.1. Introduction

    12.2. Particle Degradation

    12.3. Bend Erosion

    12.4. Particle Melting

    12.5. Static Electricity

    12.6. Explosion Risks

    12.7. Material Deposition in Pipelines

    13 Trouble Shooting



    13.1. Introduction

    13.2. System Throughput (Conveying Rate) Problems

    13.3. Types of System

    13.4. System Component Problems

    13.5. System-Related Problems

    13.6. Material-Related Problems

    14 Case Study




    14.1. Introduction

    14.2. Material Test Data

    14.3. Scaling the Test Data

    14.4. Systems Considered

    14.5. Specification of Plant Components

    14.6. Comparison of Systems

    14.7. Conclusions

    15 Bench Scale Test Methods for the Determination of Material Properties Relevant to Pneumatic Conveying



    15.1. Introduction

    15.2. Particle Size and Shape

    15.3. Particle and Bulk Density

    15.4. Flow Properties

    15.5. Aeration Properties



    A.l. References

    A.2. Further Reading

    A.3. Summary of Conveying Characteristics Presented

    A.4. Illustrations


Product details

  • No. of pages: 536
  • Language: English
  • Copyright: © Butterworth-Heinemann 1990
  • Published: January 1, 1990
  • Imprint: Butterworth-Heinemann
  • eBook ISBN: 9781483144597

About the Author

David Mills

David Mills has worked in the field of pneumatic conveying for over forty years. From 1998 – 2006 he was Professor of Bulk Solids Handling at Glasgow Caledonian University. He has published over 170 papers in the field, and has been working as an independent consultant in pneumatic conveying since 1996.

Affiliations and Expertise

Independent Consultant on Pneumatic Conveying, UK

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