Emerson V150E User Manual Page 201
- Page / 218
- Table of contents
- BOOKMARKS
Rated. / 5. Based on customer reviews
17−5
Figure 17-7. Stratified Headbox
Drawing is from TAPPI’s Making Pulp and
Paper Series and is used with permission.
Figure 17-8. Cylinder Former
Drawing is from TAPPI’s Making Pulp and
Paper Series and is used with permission.
D Water can be drained in a much shorter
distance.
D The technology is much faster than a
fourdrinier machine.
These twin-wire formers can be broken up into two
types.
Figure 17-9. Gap-Wire Former
Drawing is from TAPPI’s Making Pulp and
Paper Series and is used with permission.
D Gap Formers — These devices inject the
headbox jet between two converging wires (figure
17-9). Many gap formers have a large forming roll
where the majority of the sheet drainage occurs.
There are also several high vacuum boxes and a
suction couch roll where the two wires eventually
separate and the sheet is taken into the press
section.
Gap formers hold the speed records for single-ply
grades of paper such as newsprint or copy
papers. This technology is also becoming
competitive in the multi-ply paperboard market.
- CONTROL VALVE 1
- SOURCEBOOK 1
- Table of Contents 5
- Pulp and Paper Control Valves 7
- Globe Valves 10
- Rotary Valves 12
- Eccentric-Disk Control Valve 13
- Control-Disk Valve 14
- V-notch Ball Control Valve 14
- Control Valve End Connections 15
- Valve Body Bonnets 16
- Extension Bonnets 17
- Bellows Seal Bonnets 18
- Control Valve Packing 19
- Fugitive Emissions 20
- Graphite) Packing System 22
- ULF Packing System 22
- Valve Bodies 23
- Characterized Valve Plugs 24
- Valve Plug Guiding 25
- General Selection Criteria 26
- Conclusion 28
- General Service 29
- Liquid Level Systems 30
- Pressure Control Systems 30
- Flow Control Processes 30
- Actuator Selection 33
- Torque or Thrust Requirements 34
- Control Functions 34
- Economics 34
- Actuator Designs 35
- Piston Actuators 36
- W9589-1 W9588-1 37
- Actuator Sizing 39
- Actuator Force Calculations 40
- The Selection Process 41
- Fisher TCMt Plus Ball Seal 42
- Actuator Selection Summary 43
- Liquid Valve Sizing 45
- Sizing Valves for Liquids 49
- Table 3-2. Equation Constants 51
- Liquid Sizing Sample Problem 53
- Sizing for Pulp Stock 55
- Cavitation and Flashing 59
- Figure 4-2. Generalized r 60
- Cavitation 61
- Cavitation in Pulp Stock 62
- Flashing 62
- Viscous Flow 62
- Valve Material Damage 64
- Cavitation / Flashing Damage 65
- Selection Procedure 66
- Application Guidelines 66
- Additional Guidelines 66
- Hardware Choices for Flashing 67
- Applications 67
- System Design 68
- Drilled Hole Design 70
- Characterized Cage 70
- Cavitation Control Hardware 71
- Alternatives 71
- Gas Sizing 73
- Determining x 74
- , the Pressure Drop 74
- Ratio Factor 74
- Problem No. 1 74
- Table 5-2. Equation Constants 78
- Gas or Liquid Flow 79
- Control Valve Noise 81
- Sound Characteristics 82
- Combining Noise Sources 82
- Sources of Valve Noise 83
- Noise Prediction 84
- Methods to Attenuate Noise 85
- Figure 6-3. Whisper Trim III 86
- Path Treatment 87
- Hydrodynamic Noise 88
- Two-Phase Noise 89
- Control Valve Noise Summary 90
- Steam Conditioning 91
- Why Desuperheat? 93
- Desuperheating 94
- Desuperheaters 94
- Steam Conditioning Valves 97
- Installation Guidelines 99
- Turbine Bypass Systems 100
- High Pressure Bypass 101
- Hot-Reheat and Low Pressure 102
- Two-Shift Operation 103
- Load Rejection/Quick Restart 104
- Short Notes: 104
- Warm Starts 104
- Hot Starts 104
- Process Overview 105
- Evaporation 106
- Causticizing 107
- Bleaching 107
- Stock Preparation 108
- Paper Machine 108
- Utilities 109
- Waste Treatment 110
- C0810 / IL 111
- Figure 8-3. Utilities 113
- Chapter 9 115
- Chemithermomechanical Pulp 116
- Chemical Pulping 117
- Recovery Process: 118
- Digesters 119
- Cooking Time 122
- Cooking Temperature 122
- Cooking Pressure 122
- Pressure Profile 122
- False Pressure 124
- Overpressure 124
- Relief or Gas Off 124
- Blow Back 124
- Blow Tank 124
- Control Valve Selection 125
- Batch Digester – Low Energy 126
- Refer to figure 10A-6 129
- Continuous Digesters 131
- Pressurizing 132
- Chip Feeding 132
- Figure 10B-1. Chip Feeding 133
- Pre-steaming and Conditioning 134
- Heating Stage 142
- Valve: KV-60A and B Bottom 143
- Cooking Zone 144
- Valve: HV-16 Digester washer 145
- 1. Dual vessel only 150
- Chapter 11 155
- Auxiliary Equipment 157
- Concentrators 158
- P=Primary Valve Choise 160
- S=Secondary Valve Chice 160
- T=Throttling Service 160
- O/O=On/Off Service 160
- Chapter 12 161
- Kraft Recovery Boiler 163
- Process: 164
- Conditions: 164
- Typical Process Conditions: 164
- Chemical Reduction 165
- P=Primary Valve Choice 166
- S=Secondary Valve Choice 166
- Chapter 13 169
- Causticizers 170
- Lime Mud Filter 171
- Lime Recovery 172
- 0814 / IL 173
- Bleaching and Brightening 177
- Conventional Bleaching 178
- Fiberline 179
- Totally Chlorine Free 179
- Mechanical Pulping 180
- Chlorine Dioxide Applications 181
- Design Considerations 182
- Typical Specification 182
- Oxygen (O) Stage 183
- Figure 14-7. Oxygen (O) Stage 184
- Refining 186
- Blend Chest 187
- Stock Screening 187
- Machine Chest 187
- Thin Stock Process 188
- Stuffbox 188
- Basis Weight Valve 188
- White Water 188
- Cleaners 189
- Brown Stock Rejects Valve 190
- Deaeration Chamber 190
- Broke Handling 190
- Compact Stock Process 190
- Medium Consistency (MC) Pump 192
- Design Considerations: 192
- Typical Specification: 192
- Wet-End Chemistry 193
- Titanium Dioxide (TiO 195
- ) Applications 195
- Figure 17-2 198
- Forming Wire 199
- Fourdrinier Multi-Ply Process 200
- Twin Wire Formers 200
- Figure 17-8. Cylinder Former 201
- Figure 17-9. Gap-Wire Former 201
- Figure 17-10. Top-Wire Former 202
- Figure 17-12. Roll Press 203
- Figure 17-13. Shoe Press 203
- Press Arrangements 204
- Steam and Condensate System 205
- Hood Ventilation 205
- Size Press 207
- Calendaring 207
- Roll Finishing 208
- Boilers — Water/Steam Cycle 209
- Boiler Feedwater System 210
- Steam Generation 211
- Steam Turbine Generators 212
- Main Steam PRV and Turbine 212
- Condensing and Cooling System 213
Related products and manuals for Unknown Emerson V150E
Unknown Emerson Fisher 4195K Instruction Manual
(124 pages)
(124 pages)
Unknown Emerson Fisher 4194 Instruction Manual
(100 pages)
(100 pages)
Unknown Emerson Fisher GX Datasheet
(24 pages)
(24 pages)
Unknown Emerson FR20SL Owner's Manual
(5 pages)
(5 pages)
Unknown Emerson UWL Owner's Manual
(31 pages)
(31 pages)
Unknown Emerson 15-90kW Warranty
(2 pages)
(2 pages)
Unknown Emerson 627W Datasheet
(1 pages)
(1 pages)
© 2020, manymanuals.com. All rights reserved. | 0.318 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals