Valmet paper machine 4600mm Design speed 1200m/min 47-91gsm
-
Print this page
- Product ID: VAK11285
- Name: Valmet paper machine 4600mm Design speed 1200m/min 47-91gsm
Manufacturer Ahlström/Valmet
Manufacturing Year 1982
Paper width mm 4600 Producing: Base Paper for Off line coating
Min gsm 47
Max gsm 91 Speed m/min 1000 (design speed 1200 mpm)
Operated grammages: 47 to 91 gsm
Operated speed range: 440 to 1000 mpm
Fourdrinier wire part with top former
Tri-nip Press part
Drying section, 53 dryers, dia. 1500 mm
Calender, singe hard nip Calender
Pope reel
Details as below:
Headbox:
Manufacturer: VALMET
Model: SYMFLO
Year: 1989
Type: hydraulic
Slice width: 4920 mm
Flow range (for paper produced): 750 – 1130 l/s
42 automatic actuators (HONEYWELL)
Distance between actuators: 120 mm
Wire section:
Manufacturer: AHLSTRÖM
Breast roll dia. 723 mm
Wire table length:18 m
Wire dimensions: 5.1 x 40.8 meters
Type: cantilever
Stainless steel wire part
Wire width: 5.150 mm
No. of foils: 12 (IBS)
No. of vacuum foils: 4
No. of vacuum boxes: 3
Ceramic covers
Suction coach, dia. 1118 mm
Forward drive roll, dia. 723 mm
Top former:
Manufacturer: AHLSTRÖM
Type: cantilever
No. of foils: 1
No. of vacuum chambers: 1
Stainless steel design.
Press section:
Manufacturer: AHLSTRÖM – VALMET
Year of manufacture: 1982
Linear loads, press 1, 2 and 3: 60, 80 and 120 kN/m
Pick-up roll diam.: 610 mm
Tri-nip press section:
1st nip Bottom roll diam.: 620 mm, Küsters swimming roll
Suction press roll diam.: 1012 mm
Centre roll diam.: 1200 mm
3rd press roll diam.: 620 mm, Küsters swimming roll
Swimming roll configuration changed in year 2000 by Valmet.
Steam box in press part not available
Drying section:
Manufacturer: AHLSTRÖM, made in 1982
No. of dryers: 53
First one group bottom dryers grooved and used as vac rolls
Slalom run on both first dryer groups
Dryers diam.: 1500 mm
Total face length of dryers with gables: 4990 mm
Rope neck: 110 mm
Shell of dryer: 4880 mm
Working pressure: 3 bar
Test pressure: 4.5 bar
Missing items from dryer part:
No doors of hood available
Neither roll tensors nor guides rolls available. Mechanisms are still available
No doctors available
Calender:
Manufacturer: AHLSTRÖM
Hard nip Calender, Küsters type
Top roll diam.: 505 mm
Bottom roll diam.: 505 mm
QCS system: HONEYWELL scanner available
Pope reel:
Manufacturer: AHLSTRÖM
Drum face length: 5.000 mm
Drum dia.: 1.000 mm
Rope neck: 60 mm
Max. working face: 4.940 mm
Max. reel dia.: 3.000 mm
Approach flow system available:
Centricleaner system with Deculator
1st and 2nd Fan Pump excluded
Machine screen, made by Ahlström in 1989, type Screener M70
Disk Filter
Broke system:
Two broke thickener with screen system made by Ahlström 1989
Under machine pulpers: Coach Pit, fabricated (propeller design) and Wet end and dry end pulper included
Vacuum system: One Nash Cl 6002G included, other vacuum pumps are excluded.
Machine drive: Sectionised DC drive of the machine
Enclose gears on the dryer section