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.
Table of Contents
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
