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.

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