Pneumatic Conveying Design Guide

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.

Autorentext

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.

Inhalt

Part A Introduction
1 Introduction to the Guide
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
9.1. Introduction
9.2. Empty Pipeline Relationships
9.3. Material Conveying - Pipeline Scaling Parameters
10 Design of the Total Conveying System
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
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
Summary
Contents
Acknowledgments
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
Summary
Contents
15.1. Introduction
15.2. Particle Size and Shape
15.3. Particle and Bulk Density
15.4. Flow Properties
15.5. Aeration Properties
Appendix
Contents
A.l. References
A.2. Further Reading
A.3. Summary of Conveying Characteristics Presented
A.4. Illustrations
Index