Varaoke International Oy

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Varaoke International Oy
Business ID: 0925191-4
Kullervonkatu 20 B 112
33500 TAMPERE
Tel: +358 10 292 2090

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Harri Aikio
Kullervonkatu 20 B 112
33500 TAMPERE

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Paper Machine Beloit Walmsley 4400mm, 48-70gsm and On Line Coater

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  • Product ID: VAK10347
  • Name: Paper Machine Beloit Walmsley 4400mm, 48-70gsm and On Line Coater
MAIN PAPER MACHINE DATA


* Maximum Speed: 800mpm (2624 fpm),

avg. 2005: 758mpm(2486fpm).
* Wire Width: 5.02m (198 in). At the winder,
maximum width is 4.40m (173 in).


* LWC offset product between 48 to 70gsm (32.4 to 47.3Ibs).
Avg. 2005 was 67gsm (45.2Ibs). Matt paper produce on
Supercalenders (1 nip).
* Daily average production of 263 mtons in 2005, 90.000tpy



Wet end section

* Beloit Fourdrinier (1956) with a dilution headbox

from Beloit(Concept IV MH 1994) control by the
Measurex QCS system (OPEN)


Press section

* The 4-nip Beloit press section (1985, 4th Allimand in 1986)

has a straight through 1st press and a 2nd nip between a top
granit roll (new ceramic purchased) and a bottom vacuum roll
from Beloit.


* The 3rd and 4th press are separate with a top granit roll
(Ceramic Valrokfrom Valmet in 3rd position, 1996) and
a bottom pressure roll (4th : Sym roll fromValmet).


Dryer section

* 47 cylinders from diameter 1 m 50 (59 in).

Conventional dryer from 1956.
* One Unirun at the beginning. 5 mechanical section

with drives.
* New steam and condensate system (May 2000) with fix siphons

from Johnson.



Hard nip calender

* 2 full steel rolls with a Caltrol system to adjust final

weight at the reeler.




ON LINE COATER



Coating heads

* 2 Short Dwell from Beloit (1983). No profiling system.



Coater dryer section

* Hot air system: 1 Overly in 1st coater,

1 Air cap on the 2nd coater.
* 6 drying cylinders diam 1m 50 (59 in) in first coater.
* 7 drying cylinders diam 1m 50 (59 in) in second coater.



PM reeler

* Conventional with primary, secondary arms (pneumatic)

from Beloit (1966).
* Maximum diameter 2m 20 (87 in) means one set of 1m 25

(49 in) ortwo sets of 1m (39 in).


Others

* Measurex Open QCS and DCS System.
* ABB Ulma 3 D Holes detector.
* SPH 19 Headbox screen from Lamort (reused from PM 1).
* Lamort broke screening (holes first, slots after).


* Old drive conception on the PM dryer: 2 big motors with
2 line shafts and belts drive system to the dryer section.
In may 2000, we have replaced these old drive system on
coater by new AC drive from ABB.




FINISHING PM 3

Releerer

* Beloit with conventional pope reel and secondary arms

(pneumatic).
* Maximum speed 2300 mpm (7550 fpm).



Supercalenders

* Two 12 rolls ECK Supercalenders (Open Frame design)

from 1957 and 1964.
* Speed 600m/mn (1970 fpm).
* Type of pressure rolls: full steel rolls with fix crown.

No rapid drop inbottom nip.
* Type of Thermo rolls: with central hole (design for steam

heated) heated by hot water 120 °C (250 Fahrenheit).
New heating unit from 2000 (May, AURA Company).
* Polymer: 2 per Supercalender (6 in total, STOWE

cover on cotton).
* Wind up system: conventional pope roll system with
secondary arms(hydraulic).


WINDER and WRAPPER

* One JR1000 winder(1991),maximum speed 2300mpm (7500 fpm).

6 tons max (2 “postes lourds”), the others being 4 tons.
Usual max diameter is 130 – Max width 3,60 m.
Technical max specs being 1,50 m.


* Elevator: 3 tons max. Check hydraulics. Max width is 3,00m.
(SERMAN)


* “Cuiller” to vRoll 3 tons max.
* Trays of conveyor belt vRoll, no problem up to 2 m width,

1,28 diameter, so roughly 3,2 tons (LWC). Above, physically
working but load and efficiency of the equipment will be
challenged. Wrapping : diameter max is 1,28 m. Max width
is 3,00 m. Hydraulics is OK.




General Info

Supplier :Beloit Walmsley
Start-up :1932
Rebuild history :1956 speed up to 600m/mn

:1985 speed up to 800m/mn
new press section

:1986 new dryer frame,
improve coater sheet run.

:1990 new winder.
:1994 new headbox.

:1999 Upgrade SC, new drive on
coaterand steam/condensat
system onPM dryerGrade(s)
LWC offset,48 - 70gsm
Designspeed 800m/min
Max. trim width 4,40m



Headbox

* Type Concept IV-MH slice pcs.

* Use only manually for TSO adjustemer profile
control Dilution


Former

* Type: Fourdrinier from 1956 (BELOIT)
* outer wire width NA
* outer wire length NA
* inner wire width 5m
* inner wire length 45m 43
* installed driving power Couch 191kW, Turning Roll 280kW
* suction boxes 7 pcs
* vacu-foil boxes 0 pcs



Press section

* Type Straight through 1st and 2nd press (common and so call

transfer felt), separate 3rd and 4th press



1.Nip


* Loading 60kN/m
* Felt length 30m
* Uhle box pcs.2



2.Nip


* Loading 60kN/m
* Felt length 20m 50
* Uhle box 1 pcs



3.Nip


* Loading 80kN/m
* Felt length 16m 40
* Uhle box 1 pcs



4.Nip


* Loading 90kN/m
* Felt length 17m 70
* Uhle box 1 pcs



Felt cleaning Standard and old fashion HP showers
Felt cleaning during shut downs Choc cleaning with NALCO

Central roll cover Valrok and CeraLease on 3rd press top,

rest gran

Suction roll cover No central suction roll in this kind of

press steam box No




Drying section

* Drive groups pcs. 5
* Steam groups pcs. 4
* Single fabric 1
* Cylinder pcs. 47 (6 not heated)
* Fabrics 9
* Fabric cleaning Nothing
* Threading system Ropes
* Runability system No blow boxes



Coating

Number of coating stations :2 type SDTA from

BELOIT (1983)
Supplier :Beloit
Mode of operation :on
Type :blade SDTA
Started :1983
Speed :800 m/min
Range of coat weight :8 to 12gr/m²


* Control system Caltrol on machine calender to adjust
final weigth at the re



Calander


Number of calanders 2
Type Supercalander
Supplier Eck
Started 1957 / 64
Mode of operation off
Speed 600m/min
Control system Nothing
Max. loading 300kN/m
Max. surface temperature 70°C (inside thermo roll hot water 120°C)
Rolls 12 (4 Thermo rolls, 2 polymers, 4 cottons)
Caliper profiling Nothing (no control system)
Zones pcs. No zones: just king rolls on top/bottom nip
Roll covers Polymers on cotton directly by STOWE



Reel

* Type Conventional primary and secondary arms

(pneumatic) from BELOIT
* Max. reel diameter 2m 20
* Max. reel width 4m 55
* Loading system Pneumatic cylinders
* Cylinder coating Carbide cover
* Grooving Groove
* Spool diameter 420mm



Winders

* Type Valmet JR 1000 (center)
* Installed 1990
* Speed 2300m/min
* Roll width range 440-2000mm
* Max. roll weight Design up to 6 tons

(heavy station, normal 4 tons)
* Max. roll diameter 1250mm
* Slitters pcs. 10
* Drive BBC (revamping from previous 2 drum winder)



Rewinder

* Type Jagenberg Vari Rol
* Installed 1986
* Speed 1500m/min
* Max. roll width Limited to 2m due to Von Roll

Conveyor to Wrapping line
* Max. roll diameter 1m 25
* Slitters pcs. 3



Line Drive

* Type ABB on 4th press and coater (1999),

rest BBC (1956)
* Supplier ABB, BBC
* Max. speed 800m/mn
* Control system MEASUREX Open



Automation

* Instrumentation MEASUREX Open
* Quality control MEASUREX Open
* Maintenance
* Fault detector ULMA before PM ree



Heat recovery

* Type, supplier Mainly Brunschweiler and Belo



Vacuum system

* Type, supplier Water rings pumps

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