The belt conveyor: a concise basic course

Cover......Page 1
Half Title......Page 2
Title Page......Page 4
Copyright Page......Page 5
Dedication......Page 6
Table of Contents......Page 8
List of Figures......Page 13
List of Tables......Page 16
Preface......Page 17
Acknowledgements......Page 19
1 Belt Conveyor Components......Page 22
 1.1 Components of a Belt Conveyor......Page 24
 1.2 Conveyor Arrangements......Page 28
  2.1.1 Particle Size......Page 30
  2.1.2 Particle Shape......Page 32
  2.1.4 Particle Density (Density of Bulk Solids or Bulk Materials)......Page 33
  2.1.5 Bulk Density......Page 34
  2.1.6 Flowability of Material......Page 35
  2.1.8 Cohesion and Adhesion......Page 36
  2.1.9 Angle of Repose......Page 37
  2.1.10 Angle of fall......Page 38
  2.1.14 Angle of Surcharge......Page 39
  2.1.18 Dispersibility or Dustiness......Page 40
  2.1.22 Moisture Content and Hygroscopicity......Page 42
  2.1.25 Explosiveness......Page 43
 2.2 Behaviour of Materials on a Moving Belt......Page 44
3 Belt Tension......Page 45
 3.1 Wrap Factor, C[sub(W)]......Page 47
 3.2 Drive Arrangements......Page 48
 3.3 Maximum And Minimum Belt Tensions......Page 50
 4.1 Parts of Conveyor Belt......Page 52
 4.2 Belt Carcass......Page 53
 4.3 Types of Conveyor Belts......Page 58
  4.3.1 Fabric/Textile Belts......Page 59
  4.3.2 Steel Cord Belts......Page 63
   4.3.2.1 Special Features of Steel Cord Belts......Page 65
  4.3.4 KEVLAR Belts......Page 67
 4.4 Top and Bottom Covers of the Belt......Page 68
  4.4.1 Top and Bottom Cover Quality......Page 71
  4.4.2 Thickness of the Belt Covers......Page 72
  4.4.4 Types of Belts and Their Applications......Page 73
  4.5.3 Troughability......Page 74
  4.5.4 Quality and Thickness of the Belt Covers......Page 75
  4.5.7 Belt Speeds......Page 76
 4.6 Storage and Handling of Conveyor Belts......Page 77
  4.7.1 Mechanical Splicing......Page 78
  4.7.2 Vulcanization......Page 80
  4.7.3 Mechanical vs Vulcanized Splicing......Page 83
5 Idlers/Rollers......Page 84
  5.1.1 Tube (Shell)......Page 85
  5.1.5 Sealing......Page 86
  5.1.6 Circlips and Locking Arrangements......Page 87
  5.2.1 Carrying Rollers......Page 88
  5.2.2 Return Rollers......Page 92
  5.2.3 Fixed-Type Rollers......Page 93
  5.2.4 Garland (Catenary or Suspended) Rollers......Page 94
  5.2.5 Rollers for Training or Tracking the Belt......Page 97
 5.3 Roller Spacing......Page 99
 5.5 Roller Maintenance......Page 100
 6.1 Pulleys......Page 102
  6.1.1 Flat- or Straight-Face Pulleys......Page 103
  6.1.3 Crowned Pulleys......Page 104
  6.1.4 Wing Pulleys......Page 105
  6.1.5 Pulley Lagging......Page 106
  6.1.7 Pulleys for Different Purposes......Page 108
  6.1.8 Pulley Diameter......Page 109
 6.3 Drives......Page 110
 7.1 Belt Take-Ups......Page 113
 7.2 Belt Cleaners......Page 116
  7.2.1 The Ideal Scraper Design......Page 118
   7.2.2.1 Static-Type Cleaners......Page 119
   7.2.2.2 Dynamic-Type Cleaners......Page 122
 7.3 Accessories......Page 124
  7.3.2 Tramp Iron Detectors......Page 125
  7.3.4 Automatic Sampling......Page 126
8 Transfer Points......Page 127
 8.1 Material Storage Vessels......Page 129
  8.2.1 Belt Feeders......Page 130
  8.2.4 Vibrating Feeders......Page 131
  8.2.8 Rotary Table Feeders......Page 132
  8.2.9 Rotary Plough Feeders......Page 133
 8.3 Chute......Page 134
  8.3.4 Lining Of Chutes......Page 135
 8.4 Flow Aid Devices......Page 136
 8.5 Direction of Feeding......Page 137
 8.6 Centralizing the Material......Page 138
 8.7 Minimizing the Impact......Page 139
 8.8 Material Speed Equal to Belt Speed......Page 141
  8.9.1 Skirtboard Dimensions......Page 142
  8.9.2 Skirtboard to Belt Distance......Page 143
  8.10.1 Wear Liner Styles......Page 144
  8.10.2 Labyrinth Seal......Page 145
  8.11.2 Discharge Chutes......Page 146
  8.11.3 Trippers......Page 147
  8.11.4 Ploughs......Page 150
 9.1 Spillage......Page 152
   9.1.2.1 Reduced Material-Handling Efficiency......Page 154
   9.1.2.4 Increased Conveyor Maintenance Costs......Page 155
 9.2 Dust......Page 156
   9.2.1.2 Bin Lowering Chute......Page 158
  9.2.2 Dust Control......Page 159
   9.2.2.2 Dust Collection Systems......Page 160
   9.2.2.3 Wet Dust Suppression Systems......Page 161
10 Belt Training......Page 162
 10.1 Knocking and Tilting the Rollers......Page 163
 10.2 Mechanical Training Aids......Page 164
 11.1 Operation......Page 165
 11.2 Maintenance......Page 166
 11.3 Safety......Page 168
12 Troubleshooting......Page 170
Bibliography......Page 188