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Preface

This book presents practical applications and guidance for engineers. It provides a reference to meet the needs of a company licensed or competent unlicensed engineer, that by education or experience understands the concepts presented in this book. It provides guidance to analyze and design or retrofit dust collection equipment to resist dust explosions, to protect employees and reduce production down time. The intent of the book is not to encourage licensed or competent unlicensed engineers to practice outside of their field of expertise, but to provide guidance to competent engineers to enhance their knowledge and approach to the narrow area of dust handling explosion venting and system reinforcing. Dust collector systems are not very complicated in scope and design. The reinforcing of thin panels is common to all square/rectangular dust collectors as are cylindrical dust collector roofs and access doors. Bolted flange connections, hinges, and latches are common and easily analyzed. This book provides guidance for these conditions. Licensed engineers and engineering consulting firms may find this book to be an advantage in obtaining the business of mitigating hazards for the many facilities that will have their hazards exposed by the National Fire Protection Association (NFPA) mandate of providing a dust hazard analysis of all facilities by September 2020. Many facilities do not have an engineer on staff, and they will be obligated to hire an outside consultant to mitigate their hazards.

Detailed explanations of formulas and tedious derivations are not necessary and are avoided. The data are presented in tables and graphs along with examples to illustrate the actual applications.

For each topic, the general principles and theories are stated, followed by extensive tables and worksheets for use in calculations of stress and strain and to design reinforcing of equipment with adequate and economical reinforcing members.

The examples are based on actual proven designs developed by the author by analyzing over 200 systems to clearly illustrate application of the information provided.

The book is arranged to provide a means of solving practical engineering problems.

Although every effort has been made to avoid errors, it is possible some could exist. I will be grateful for any needed corrections.

Robert C. Comer

Rockaway, NJ

09 June 2020