Explosion Vented Equipment System Protection Guide

This book provides complete step by step instruction, practical examples, guidance, and worksheets to meet the needs of a company licensed or competent unlicensed engineer that, by education or experience, understands the concepts presented in this book.  This book will help engineers ensure that their company is in compliance with the new standard of dust collection systems by mitigating the exposed risks. The data is presented in tables and graphs along with examples that are based on actual, proven, practical designs to clearly illustrate application of the information provided.

The book is broken down into two parts. Part 1 details structural analysis and design for reinforcing dust handling systems including Design criteria and general theory, Dust collector wall, roof and hopper sections, Access doors, hinges and latches, explosion vent ducts, blast deflectors, and filter bag cage design, Explosion vent duct weather covers, etc. Part 2 covers explosion relief elements and explosion flowing pressure analyses.

ROBERT C. COMER, P.E., is a Life Member of the National Society of Professional Engineers. He served as President of the New Jersey, Morris County Association of Professional Engineers and Land Surveyors for two years. He holds seven patents. He retired as the Site Engineering Manager for M & M, Mars, Inc. and has been a consultant to Hazards Research, Inc. for the last 25 years. He has been a consultant to plants all over the world, analyzing over 200 dust explosion vented equipment systems.

Forward xii

Preface xvii

How to use this book xix

Part 1: Introduction

Part 1: Structural analysis and design for reinforcing dust handling systems              

Chapter 1: Design criteria and general theory 1

Chapter 2: Square/Rectangular Dust Collectors: walls, roof and hopper sections 7

Chapter 3: Round Cylindrical Dust Colectors 43

Chapter 4: Reinforcing member to panel weld analysis and Port (nozzle) 58

Chapter 5: Access doors, hinges and latches 72

Chapter 6: Explosion vent ducts, mill air inlet ducts, blast deflectors, and    86          

Chapter 7: Explosion vent duct weather covers 136

Chapter 8: Dust collector stability 144

Chapter 9: System explosion isolation 150

Chapter 10: Screw conveyors rotary airlock valves and isolation valves 152

Chapter 11: Grounding of systems 155

Chapter 12: Housekeeping 161

Appendix A: Part 1 worksheets 164

Part 2: Explosion relief element and flowing pressure (PRed) analysis 193

Chapter 13: Know your process dust characteristics 195

Chapter 14: Venting analysis of dust handling systems 200

Chapter 15: Duct back pressure considerations 220

Chapter 16: Other methods of explosion pressure reduction 229

Appendix 2: Part 2 worksheets 230

References 234

Index 235

The New copy of this book will include any supplemental materials advertised. Please check the title of the book to determine if it should include any access cards, study guides, lab manuals, CDs, etc.

The Used, Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.