PAPER MACHINE 8500mm Reel Width
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- Product ID: VAK10821
- Name: PAPER MACHINE 8500mm Reel Width
(See reference to vak 10822.) (Vak 10821 and 10822 are an entity)These machines will only be sold for the production of brown grade papers.
Mill voltage is 525 volts and incoming voltage is 10,000 volts, 3phase and 50 cycles. (two paper machines, reference: Vak 10822)
Year built 1972, Valmet manufacture, 1000m/min, 165,000 t/year, trim 8400mm, 45 to 55 gsm. Wire part Valmet Symformer R upgraded 1984. Valmet Twinver press with three nips. 52 Dryers in four groups. QCS systems are Honeywell type open 1995.
Theoretical Production Table:
|Speed (m/min)||Grammage (g/m2)||Efficiency||Trim||Production (t/day)|
Machine computer system: Partly Siemens PCS7
Wire section: 9,880mm
Press section: 10,050mm
Drying sections: 9,950mm
Tampella drum thickener in stainless for back water fibre thickening, , gearbox drive, stainless construction. Year 1972. Discs are 5 mtrs diameter x 6 mtrs length.
Hedemora disc filter with stainelss segments, vacuum assisted, total of 20 discs. Support steel work, Gear motor drive.
Jylhavara Fiberizer with a 200kw motor
Clark and Vicario Deculator with Richard Berg stainless cleaners.
Jylhavara roll splitter for broke reels feeding in to the rewinder pulper
Four Tampella /BCI pressure screens model 30 P with perforated baskets 1.6 mm holes, gearbox drives.
Rejects to a Tampella /BCI pressure screen model 24P with 1.6mm holes.
Rejects to a Tampella vibrating screen with 4 mm holes.
Colour kitchen with various tanks and colour pumps.
Paper machine Hall
Basement designed paper machine with drive on the right side from the wet end.(see pictures)
Sectional electric drives (pictures)
In basement: variable speed fan pump. Four CL 9002T vacuum pumps with a common drive.
Two reconditioned pumps as spares. Stock and water pumps.
Headbox: Symflow, 8820mm slice width, profile control by 72 actuators 123mm. Thermacontrol of the headbox slice, design speed 1000 m/min. Headbox 1200m/min.
Paper machine drive ABB, design speed 1000m/min, DC operation.
Instrumentation: Seimens teleperm, Mx control system.
Maintainance by SKF microlog and ABB Argus systems.
Heat recovery by Valmet Pansio. Part dismantled (outer roof).
Former: Symformer with 84 actuators, outer wire width 9100mm, wire length 24,300 m, inner wire width 9100mm and wire length 50,000 mm. Installed power 1.620 Kw.
Two suction boxes and vacu foils. Wire is cantilevered with stainless frame.
Suction pick up. Press type Twinver and 3rd press.
Felt length 30,000 mm: first nip loading 70Kn/m.
Felt length 25,500 mm: second nip loading 90 kN/m. Kuster roll installed
Felt length 26,000mm: third nip loading 90 kN/m.Kuster roll installed.
Ule felt cleaning box.
Valmet steam box with 40 zones.
52 Drying cylinders in four groups, 1500 mm diameter, A/F dryer bearings with auto lub system. There is a space before the first dryer section where an inter-calender was previously installed. Operating pressure of drying cylinders is 2.5 bar.
Oil tank in basement. System has a centrifuge for water separation from oil.
Totally enclosed dryer hood with front lifting door, sheathen rope tape tail feed. Sectional electric drive.
Dryers have enclosed gear drives.
Dryer sections one and two are the main steam groups, with single felt. Third and fourth dryers are cascade system. Dryer felts are 48,000, 107,000, 66,500 and 43,000 mm lengths. Felt cleaning by nozzles and chemically cleaned in during machine shuts.
Undermachine pulper for sheet breaks and tail trims with twin rotors and v belt drives.
Runability systems: uno run, sym run and press run.
Valmet horizontal reel up with roll accelerator, hydraulic operation, maximum roll diameter 2600mm, maximum roll width 8500mm. Grooved drum, reel shell diameter 770 mm.
Ulma hole detector.
General:(VAK 10821 & VAK 10822)
The paper machines have a range of spare wires and felts.
Each paper machine will be sold with one overhead crane.
There is a full photo data base showing the system through each paper machine.
Foundation, plan and side elevation drawings are available on the paper machines.