0402000 wire sectionr -congnghegiay.com
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Transcript of 0402000 wire sectionr -congnghegiay.com
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VKPC – PM#1
Training Wire Section
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Introduction 1. Introduction Trainer
2. Training Schedule
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Introduction of the Trainer
Jun Takahashi
Paper Machine Engineering Dept.
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Training Schedule
Training Time
Breaks
Lunch
Question and Answer
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Technical Data1. Basic Design Data
2. Technical Specification
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Basic Design Data – Layout data
Design widthWire width 5.950 mmUntrimmed paper width on pope 5.300 mm
Basis weightT1 (Pulp on Top) 125 - 275 gsmT2 (100% OCC) 125 - 250 gsmCM 105 - 125 gsm
Design production At PM reel max. 744 to/24hWith efficiency 100%Moisture at reel 8%Basis weight 125 gsm (Reference liner grade)
Paper Grade Liner Board (Test Liner: T1, T2)Corrugating Medium
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Basic Design Data – Layout data
Reel spoolMax. parent reel diameter: 3.000 mm
Hand of machineStanding at the headbox facing the reel: Drive on right hand side
Operating speedProduction speed range 355 - 800 m/minDrive speed 900 m/minDesign speed 900 m/minBalancing speed 900 m/min
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Components1. Overview2. Roll3. Drainage Element4. Doctor5. Shower6. Saveall7. Movement
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Former section components
Fordrinier wireBack liner
Wire 1
TopFormer FUnder liner
Wire 2
TopFormer FTop liner
Wire 3
C B
A
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Fordrinier wire (back liner = wire 1)Headbox
Wire runout signaling unit
Rotary piston regulator with palm unitMist collecting pan
(Future use)
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TopFormer F (under liner top = wire 2)
Headbox
Wire
Exhaust duct (Headbox area)
Rotary piston regulator with palm unit
Wire runout signaling unit
Mist collecting pan(Future use)
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TopFormer F (top liner = wire 3)
HeadboxExhaust duct (Couching area)
Mist collection pan(Future use)
Wire runout signaling unit
Rotary piston regulator with palm unit
Wire
Exhaust duct (Headbox area)
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Suction couch roll (Drive)
#1 Wire drive roll #1 Stretch roll(Pivoted wire roll)
#2 Stretch roll(Pivoted wire roll)
Roll – Back liner (Wire 1 components)
#2 Wire drive roll
Brest roll
Wire guide roll
#2 Wire roll
#1 Wire roll
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Roll – Under liner top (Wire 2 components)
Breast rollWire drive roll (Reversing roll)
Couch cylinder roll (Drive)
Stretch roll(Pivoted wire roll)
(Drive)
Wire guide roll
Lifter roll (Pivoted wire roll)
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Roll – Top liner (Wire 3 components)
Breast rollWire drive roll (Reversing roll)
Couch cylinder roll (Drive)
Lifter roll (Pivoted wire roll)
Wire guide roll Stretch roll
(Pivoted wire roll)
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Drainage Element – Back liner (Wire 1 components) 1
Forming board
Hydro foil box (10-Blades)
Vacuum step foil box
2-chamber wet suction box
Inlet suction box
Outlet suction box
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Drainage Element – Back liner (Wire 1 components) 2
Wire support deflector
2-chamber flat suction box
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Drainage Element – Under liner top (Wire 2 components)
Forming board
Hydro foil box (7-Blades)
Vacuum step foil box
2-chamber wet suction box
1-chamber flat suction box
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Drainage Element – Top liner (Wire 3 components)
Forming board
Hydro foil box (10-Blades)
Vacuum step foil box
2-chamber wet suction box
1-chamber flat suction box
Outlet suction
box
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Doctor – Back liner (Wire 1 components) 1
Brest roll doctor(DST)
Self weight doctor
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Doctor – Back liner (Wire 1 components) 2
Double doctor (DST)
Self weight doctor
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Doctor – Under liner top (Wire 2 components)
Breast doctor(DST)
Self weight doctor
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Doctor – Top liner (Wire 3 components)
Breast doctor(DST)
Self weight doctor
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Shower – Back liner (Wire 1 components) 1
Breast showerDeckle showerMoistening shower for drainage element
HP shower for wire cleaning
Chemical shower
LP shower
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Shower – Back liner (Wire 1 components) 2 Deckle jet (Trimsquirts)
Tail squirts
Suction couch roll shower inside
Moistening shower for drainage element
HP shower for suction couch rolloutside
Knock-off shower
Edge knock-off shower
Wire edge cleaning shower
LP shower
Couch Pit
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Shower – Under liner top (Wire 2 components)
Deckle showerMoistening shower for drainage elementLP shower
Wire edge cleaning shower
Breast shower
HP shower for couch cylinder roll
Starch spray HP shower
for wire cleaning
Chemical shower
LP shower
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Shower – Top liner (Wire 3 components)
Deckle shower
Wire edge cleaning shower
Breast shower
HP shower for couch cylinder
LP shower
Starch spray
Chemical showerHP shower
for wire cleaning
Moistening shower for drainage element
LP shower
LP shower
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Saveall
Saveall for wire 2
Saveall for wire 1
Saveall outlet for wire 1
Saveall outlet for wire 1
Saveall outlet for wire 1
Saveall outlet for wire 2
Middle saveallfor wire 2
Saveall for wire 3
Saveall outlet for wire 3
Saveall under reversing roll
Outlet of middle saveall for wire 2
Middle saveall for wire 3
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Movement
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Breast Roll Lifter
Loose breast nutby hand tool
Store to holder
Swivel down by air motor and
worm gear jack
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Wire Change
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Remove the spacer blocks
C6C4
C2
C1
C3
C5
C7
C8
C9
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To change Wire 1
To change Wire 2Wire 3
1st
2nd
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Remove the spacer blocks
Detail of removable block
Swing bolt
Removable block
(aluminum)
Loose swing bolt, Swivel down.
Then insert Hyd. Jack.
Hyd. Jack
Lift up stand by Hyd. Jack.
Take out removable block.
ReleaseHyd. Jack.
Take out Hyd. Jack.
To hand pump
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C5
C6C7
C8
C9 C1
C2
C3C4
All lifter rolls are in minimum (loose) position
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Installation position of hydraulic jacks
C5
C6C7
C8
C9 C1
C2
C3C4
Hydraulic jack
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Installation position of hydraulic jacks
Hydraulic jack
C5
C6C7
C8
C9 C1
C2
C3C4
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Position of wire box before framing
Roll Wire pole bracket (guide)
WalkwayWalkway bracket
Handrail
Wire box
Framing
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Wire poles in wire loop
(2) Wire poles
(3) Wire loop(1) Winding pole
Push wire poles (2) into wire loop (3), starting with the rounded ends.
Remove winding poles from wire.
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2FL
Wire on wire pole bracket (wire 1)
(1) Wire polebracket (guide)
(2) Wire pole
(4) Wire
(3) Wire pole stand
1) Hang a wire pole (2) by means of crane with rope sling, then put it on the wire pole bracket (1) and wire pole stand (3).
2) After securely stored wire pole, take out rope sling. 3) Repeat above procedure at rest of wire poles.4) Fasten clamps at those points on the wire at which the wire cannot be drawn
in over the cross walkways.
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Wire pole position (wire 1)
C1
C2
C3C4
C5
C6C7
C8
C9
Wire pole
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Installation position of hydraulic jacks (wire 2)
C2
C3C4
Hydraulic jack
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Wire on wire pole bracket (wire 2)
(1) Wire pole bracket (guide)
(2) Wire pole (4) Wire
(3) Wire pole stand
(5) Building wall,front side
1) Hang a wire pole (2) by means of crane with rope sling, then put it on the wire pole bracket (1) and wire pole stand (3) which located at front side wall (5).
2) After securely stored wire pole, take out rope sling. 3) Repeat above procedure at rest of wire poles.4) Fasten clamps at those points on the wire at which the wire cannot be drawn
in over the cross walkways.
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Wire pole position (wire 2)
C2
C3C4
Wire pole
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Installation position of hydraulic jacks (wire 3)
C6C7
C8
Hydraulic jack
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Wire pole position (wire 3)
C6C7
C8
Wire pole
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Operation1. Operation and Setting
2. Start-up
3. Shutting down
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Start-up
Conduct checks after starting
Proceed as follows to star up the forming section.
Prepare wires mechanically
Conduct checks before starting
Put forming section into operation
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Prepare the wires mechanically
5. Adjust wire tension by moving stretche roll.
Prerequisite
1. Switch on safety switch (power switch).
2. Move breast rolls into operating position, breast roll nuts tightened.
3. Move lifter rolls into operating position.
4. Move Top Former F couch cylinder roll into stand-by position
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Checks before starting The following checks have to be made before starting the forming section:
- Eyebolts at spacer blocks properly tightened.
- Hydraulic jacks at spacer blocks removed- Signaling units installed and adjusted
- Spray angle of showers adjusted- Guards properly installed- No contact between the wires, with the exception of TopFormer F- Wires in central position on the wire guide rolls- Alarm devices and emergency-off switches are ready for operation- Unhindered movement of doctors and showers
- Transport routes and walkways cleared from tools, hoses, etc. lying around- Remote controlled shower valve shall be AUTO mode- Doctor oscillator shall be AUTO mode
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Putting the forming section into operation
1. Set doctors.2. Open low pressure shower valve.3. Open edge cleaning and deckle shower valve.4. Open edge knock-off shower valve.5. Open knock-off shower 50A valve as back #1 wire drive roll cleaning shower.6. Open suction couch roll inside shower valve and sealing water valve.7. Open and adjust the suction couch roll air load tube line.8. Activate heating and ventilating system.9. Open drainage element moistening showers.10. Switch wire drives to crawl speed.
To be continued...
11. Check doctor oscillators.12. Check HP showers and oscillators.13. Check deckle jet and tail squirts.14. Check wire run and wire tension.
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Putting the forming section into operation
15. Increase wire speed slowly to operating speed.16. Activate fan pump (for back liner, first activate dilution fan pump, then fan pump).17. Move couch cylinder roll into operating position as soon as wires run
synchronously.
18. Check and adjust wire tension.19. Activate vacuum system.20. Switch on stock pump.21. Check knock-off shower
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Checks after starting
The following checks have to be made after starting the forming section:
- Showers in operation (except chemical shower).- Swinging sensors in central position- Centered wire run- Wire tension- Vacuum in drainage elements- Doctors adjusted correctly and functioning- Doctor discharge openings free
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Shutting down
1. Open knock off shower valve.
2. Switch off stock pump.3. Switch off vacuum system.4. Move couch cylinder rolls into stand-by position.5. Deactivate fan pump (for back liner, first deactivate fan pump,
then dilution water fan pump).
6. Switch off wire drives.7. Deactivate showers and oscillators.8. Lift off doctors.9. Deactivate heating and ventilating system.10. Adjust wire tensions to 0 kN/m.11. Carry out cleaning.12. Carry out inspection.
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Operation procedure
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Operation procedure
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Operation procedure
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Operation procedure
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ALARM EDGE GUIDE
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TENSION CONTROL
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Wire Guide Operation Panel
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Back Layer Pneumatic Valve Stand
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Back Layer Pneumatic Valve Stand Piping Diagram (1)
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Back Layer Pneumatic Valve Stand Piping Diagram (2)
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Under Top & Top Layer Pneumatic Valve Stand
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Under Top & Top Layer Pneumatic Valve Stand Piping Diagram
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Deckle Shower Flexible Hose
WIRE WIDTH5950
STOCK
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Tail Squirt
WIRE WIDTH5950
Tail Squirt
TAILPAPER WEB
Nozzle(Traversable)
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Web width into press section5550
TRIM
TRIM
TrimSquirts
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The cutting angle (production angle P) is adjusted by the tilting device which is below the positioning unit or by distortion of the nozzle stick. To turn the nozzle stick loose the hexagon socket screw (1) in advance.
Nozzle stick
TrimSquirts - Adjusting the cutting angle
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Variant 1:Pivot identic cutting point.After angle setting the cutting pointremains in the slit of the pipe suction.
1 2
Variant 2:Pivot not identic cutting point.After an angle setting the cutting pointmoves on the wire the distance ds andchanges the distance nozzle to wire.The nozzle stick can be turned byloosening of screw.(see picture in previous page).
Angle setting with a manual nozzle stick
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P = Production angle F = Angle drive tender side angle
Nozzle angleNozzle adjustment
Production direction
With a double jet nozzle the cutting breadth can be adjusted individually.
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Roll – Suction Couch Roll
Deckle
Air tubeAir tube
Suc.Zone 1
Suc.Zone 2
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Roll – Couch Cylinder Roll
The couch cylinder roll unites the webs.
Seam
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Roll – Wire guide roll
Wire
Wire guide roll on front side
Pneumatic cylinderFor auto guide
Rotary piston regulator with palm unit
Support for wire guideHandle for
Manual guide
The wire guide roll measures the wire tension and corrects the lateral wire run error.
Wire guide roll on FS Wire guide roll on DS
Wire guide roll on drive side
Pivoted pointLoad cell
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Roll – Pivoted wire roll
The pivoted wire roll is used as a stretcher roll to tension the wire or as a lead-out roll to separate the wires.
Pivoted arm
Roll
Spindle-type lifting elements(Worm gear jack)
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Drainage elements – Forming board
The forming board supports the wire from below at the headbox. In addition, it dewaters the suspension and removes air bubbles which have been trapped between suspension and wire while the suspension has been applied.
Wire
Breast roll
Baffle stripSecondary strip
Vertical adjustmen
tdeviceMain body
Bracket
Horizontal adjustment
device
Dovetail profile
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The vacuum step foil box dewaters the suspension.
Drainage elements – Vacuum step foil box
Wire
Vertical adjustment
device
Main body
Bracket
Dovetail profile
ValveEnd
deckle
Plastic strip
Ceramic stripwith FRP body
Longitudinal girder
Detail of Blade
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The 2-chamber wet suction box dewaters the paper web.
Drainage elements – 2-chamber wet suction box
Ceramic strips
End deckle
Valve
Cleanout cover
Vertical adjustment
device Wire
Longitudinal girderMain body
Bracket
Dovetail profile
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Drainage elements – Inlet suction box
The inlet suction box dewaters the suspension.
Main body
Vertical adjustment
device
Cleanout coverLongitudinal girder
Dovetail profile
Bracket
Ceramic stripsEnd deckleValve
Wire
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Drainage elements – Outlet suction box
The outlet suction box dewaters the suspension.
Main body
Vertical adjustment
device
Cleanout coverLongitudinal girder
Dovetail profile
Bracket
Ceramic stripsEnd deckleValve
Wire
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Drainage elements – Wire support deflector
The wire support deflector prevents the wire from sagging.
LonCeramic strips
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The 2-chamber flat suction box dewaters the paper web.
Drainage elements – 2-chamber flat suction box
Ceramic strips
End deckle
Valve
Cleanout cover
Vertical adjustment
device Wire
Longitudinal girderMain body
Bracket
Dovetail profile
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The 1-chamber flat suction box dewaters the web.
Main body
Vertical adjustment
device
Cleanout coverLongitudinal girder
Dovetail profile
Bracket
Ceramic stripsEnd deckleValve
Wire
Drainage elements – 1-chamber flat suction box
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Drainage elements – Hydrofoil box
The Hydrofoil box dewaters the suspension
Main body
Vertical adjustment
device
Longitudinal girderDovetail profile
Bracket
Ceramic strips with FRP body
Wire
Ex:) Hydrofoil box 10-blade
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The beast roll doctor cleans the breast roll surface.
Doctor – Breast roll doctor (DST)
Breast roll doctor
Turnbuckle
Oscillating device
Breast roll
Air tube
Pivot
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The double doctor cleans the suction couch roll surface.
Doctor – Double doctor for suction couch roll (DST)
Suction couch roll
Turnbuckle
#1 Doctor blade
Drain outlet
#2 Doctor blade
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The doctor cleans the surface of the roll and directs any dirt and shower water laterally away from the wire.
Doctor – Self weight doctor
Pan typeBox type
Pivot pointCenter ofgravity
Roll
Doctor blade
Doctor back
Discharge opening at drive side
Roll
Doctor blade
Center ofgravity
Pivot point
Doctor back
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Adjusting the lead-out roll (lifter roll)
Under liner top wire lifter roll
Transfer suction box between Under liner top and Top wire
Top wire
Top wire lifter rollUnder liner top wire
Back wire Transfer suction box between Top and Back wire
The distance between lead-out roll and Top wire is approx. A = 34.2 mm.The distance between lead-out roll and Back wire is approx. B = 70 mm.
B
A
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Swinging the breast roll into operation position
Tighten breast nut by hand
tool
Swivel up by air motor and worm
gear jack
Breast nut