Explosion Vented Equipment System Protection Guide. Robert C. Comer

      14  Index

      15  End User License Agreement

      List of Tables

      1 Chapter 1Table 1.1 Material properties and allowable stresses.Table 1.2 Steel sheet gauges.

      2 Chapter 2Table 2.1 Panel edges fixed.Table 2.2 Rib reinforcing section modulus,S_c.Table 2.3 Structural angle – panel composite sections.Table 2.4 Rectangular tube – panel composite sections,S_c.Table 2.5 Channel – panel composite sections,S_c.

      3 Chapter 4Table 4.1 Allowable load on welds: intermittent welds occur in pairs.Table 4.2 Structural angle – panel composite sections:I_C, Y′, A_p, and W_p.Table 4.3 Structural tubing – panel composite sections: I_C, Y′, A_p, and W_p.Table 4.4 Structural channel – panel composite sections: I_C, Y′, A_p, and W_p.Table 4.5 Rib – panel composite sections: I_C, Y′, A_p, and W_p.

      4 Chapter 5Table 5.1 Bolt material and 67% yield strength.Table 5.2 Bolt sizes and stress areas.

      5 Chapter 13Table 13.1 Explosion characteristics of various dusts.

      6 Chapter 14Table 14.1 Conversion factors.

      List of Illustrations

      1 Chapter 1Figure 1.1 Pressure versus time example.

      2 Chapter 2Figure 2.1 Typical dust collector unreinforced.Figure 2.2 Typical dust collector reinforced.Figure 2.3 Width of loading small panel.Figure 2.4 Reinforcing member loading.Figure 2.5 Actual unsupported panel width.Figure 2.6 Width of loading large panel.Figure 2.7 Cross reinforcing member loadingFigure 2.8 Reinforcing member for Example 2.2, shear and moment diagrams.Figure 2.9 Side and rear panel reinforcing.Figure 2.10 Hopper panel reinforcing members.Figure 2.11 The horizontal reinforcing member.Figure 2.12 Vertical reinforcing member (conservative analysis).Figure 2.13 Hopper panel horizontal members only.Figure 2.14 Panel reinforcing rib loading.Figure 2.15 Panel reinforcing rib.Figure 2.16 Square/rectangular vessel.Figure 2.17 Panel to panel corner joint worksheet.Figure 2.18 Panel to panel corner joint reinforcing worksheet.Figure 2.19 Panel to panel corner joint worksheet.Figure 2.20 Panel to panel corner joint reinforcing worksheet.Figure 2.21 Reinforcing cross member miter joint.Figure 2.22 Bolted flange detail.Figure 2.23 Bolted flange stress.Figure 2.24 Typical dust collector ribbed.Figure 2.25 Panel reinforcing rib loading.Figure 2.26 Panel reinforcing rib.Figure 2.27 Panel reinforcing rib and tube.

      3 Chapter 3Figure 3.1 Cylindrical vessel.Figure 3.2 Cylinder and head stresses.Figure 3.3 Reinforcing member 1 loading.Figure 3.4 Reinforcing member 2 loading.Figure 3.5 Reinforcing member 3 loading.Figure 3.6 Reinforcing members summary.Figure 3.7 Rib reinforcing edges.Figure 3.8 Tube reinforcing edges.Figure 3.9 Small nozzle example 1 on a flat head.Figure 3.10 Small nozzle example 2 on a curved surface.Figure 3.11 Ellipsoidal head.Figure 3.12 Torispherical head.

      4 Chapter 4Figure 4.1 Weld spacing. F_a, allowable load per pair of fillet welds (lbs, T...Figure 4.2 Head reinforcing rib member 1.Figure 4.3 Head reinforcing member 3.Figure 4.4 Head reinforcing angle member 3.

      5 Chapter 5Figure 5.1 Panel reinforcing loading.Figure 5.2 Main reinforcing member for access door.Figure 5.3 Weld spacing.Figure 5.4 Access door latch (bolted).Figure 5.5 Access door hinge (bolted).Figure 5.6 Access door toggle clamp.Figure 5.7 Hinge/latch reinforcing tube.Figure 5.8 Eyebolt bracket.Figure 5.9 Tear out analysis.Figure 5.10 Clevis pin.Figure 5.11 Bending analysis.

      6 Chapter 6Figure 6.1 Explosion vent duct: roof.Figure 6.2 Explosion vent duct: wall.Figure 6.3 Blast deflector.Figure 6.4 Explosion vent duct – reinforcing.Figure 6.5 Blast deflector: reinforcing.Figure 6.6 Gasketed duct flange bolt load diagram.Figure 6.7 Square vent duct with no bend at end of duct.Figure 6.8 Square vent duct with bend at end of duct.Figure 6.9 Square vent duct with 90° bend at end of duct.Figure 6.10 Square vent duct bolt spacing example.Figure 6.11 Vent duct flange detail.Figure 6.12 Flange stress with no bend.Figure 6.13 Flange stress with a 45° bend at the end of the duct (for the sq...Figure 6.14 Flange stress with a 45° bend (for the square bolted flange, ref...Figure 6.15 Flange stress with a 90° bend at the end of the duct (for the sq...Figure 6.16 Flange stress with a 90° bend (for the square bolted flange, ref...Figure 6.17 Round vent straight duct with no bend at end of duct.Figure 6.18 Round vent straight duct with 45° bend at end of duct.Figure 6.19 Round vent straight duct with 90° bend at end of duct.Figure 6.20 Round vent duct bolted flange 16 blots example.Figure 6.21 Round flange stress with a 45° bend at the end of the duct (for ...Figure 6.22 Flange stress with a 45° bend (for the round flange Refer to Fig...Figure 6.23 Flange stress for the round flange with 90° bend at end of duct ...Figure 6.24 Flange stress (for the round flange refer to Figures 6.19 and 6....Figure 6.25 Flange stress (for the round flange refer to Figures 6.19 and 6....Figure 6.26 Hammermill air inlet duct.Figure 6.27 Filter bag cage detail.Figure 6.28 Wall penetration vent duct non‐loss‐in‐weight vessel.Figure 6.29 Wall penetration vent duct loss‐in‐weight vessel.Figure 6.30 Vent duct flange detail.Figure 6.31 Bird screen detail.

      7 Chapter 7Figure 7.1 Support frame bevel cut weather cover round duct.Figure 7.2 Installation procedure square cut weather cover round duct.Figure 7.3 Installation procedure bevel cut round duct.Figure 7.4 Support frame bevel cut weather cover rectangular duct.Figure 7.5 Installation procedure bevel cut weather cover rectangular duct....Figure 7.6 Installation procedure square cut weather cover rectangular duct....

      8 Chapter 8Figure 8.1 Inside location of dust collector: with vent duct.Figure 8.2 Outside location of dust collector: with vent duct.Figure 8.3 Dust collector leg anchors.Figure 8.4 Angled vent duct column support.

      9 Chapter 9Figure 9.1 Explosion vent surrounding area exposure.

      10 Chapter 10Figure 10.1 Screw conveyor choke.Figure 10.2 Screw conveyor with rotary airlock valve.Figure 10.3 Screw conveyor cover.Figure 10.4 Section A–A.

      11 Chapter 11Figure 11.1 Grounded filter bag and cage assembly design detail.Figure 11.2 Flanged connection bonding and grounding details.Figure 11.3 Morris coupling connection bonding and grounding details.Figure 11.4 Flexible connection between grounded components detail.

      12 Chapter 12Figure 12.1 Explosion area warning sign.Figure 12.2 Vent identification plate (example).

      13 Chapter 14Figure 14.1 Square/rectangular dust collector with explosion vent close to h...Figure 14.2 Square/rectangular dust collector with explosion vent high on th...Figure 14.3 Square/rectangular hopper volume.Figure 14.4 Cylindrical dust collector with an explosion vent on the side of...Figure 14.5 Cylindrical dust collector with an explosion vent on the top of ...Figure 14.6 Cylindrical hopper volume.

      14 Chapter 15Figure 15.1 Explosion vent duct‐roof.

      Guide

      1  Cover

      2 Table of Contents

      3  Begin Reading

      Pages

      1  i

      2  ii

      3  iv

      4  ix

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