1 Beloit, Fampa

55,000 TPY Paperboard ( RAG BOARD) Machine, 4.200 mm, N/A

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REF.	56020-W2
BRAND	Beloit, Fampa
Type	55,000 TPY Paperboard ( RAG BOARD) Machine
Width ( Inch, mm )	4.200 mm WI
Gramages range ( GSM )	N/A
YEAR
QUANTITY	1
LOCATION	EUROPE Western and Northern
DATE	13 Oct. 2008

55,000 TPY Paperboard ( RAG BOARD) Machine, 4.200 mm, N/A

Board Machine, Cylinder-type, Paperboard (rag board)
Size: 4.200 mm
Speed: 100 mpm
Capacity: 55.000 tpy

Screen section
Headbox for basic ply open box; working width 4250 mm;
Coarse slice slot control with electromotor, fine control by help of spindles;
Material: steel with stainless cladding; partly corroded box; 1 deflocculator;
Breast roll
Bronze jacket; jacket width 4500 mm; outside diameter 600 mm; spare roll available
Breast roll scrapper Yes
Headbox for top layer

Foudrinier table
Current status - see drawing; despite earlier reconstruction the technological level is very poor.

Couch roll
Bronze jacket with two 8 mm holes; roll diameter 1000 mm; jacket length 4625 mm; suction chest 195x4400 mm; spare roll available; the roll has own drive

Couch roll presser
Rubber-coated; diameter 500 mm; jacket length 4450 mm; pneumatic loading and released by help of membrane;
Screen section shaking
3 shakers

Screen guide rolls
Total of 8 rolls (3 tension rolls, 2 regulating rolls, 2 guide rolls, 1 knock-off roll); all rolls are identical; diameter 324 mm; jacket length 4500 mm; hard rubber blanket 5-6 mm; 3 scrapers for external screen rolls;

Screen run regulation
1 manual screen run regulator; 1 automatic screen run regulator, pneumatic;
Screen tensioning
2 tensioners

Vacuum system

Screen suction chests
1 vacuum pump WP20 (15 m3/min)
(first ones)

Screen suction chests
1 vacuum pump WP30 (30 m3/min; 0-5 m w.c.)
(instead of rotabelts)

Couch roll
1 vacuum pump RVV810 80m3/min; (formerly, Drysdale 7V 55m3/min; 0-6,9 m w.c.)
Suction press rolls
1 vacuum pump WP60
Felt suction chests
1 vacuum pump WP60
Underpressure control
Manual; the original Broughton system is out of function
First press

Bottom roll
Suction roll; diameter 860 mm; jacket length 4670 mm; rubber coated bronze jacket, hardness 30-35 PaJ, with 4 mm circular holes; 4400 mm wide suction body; underpressure 4-8 m w.c.; the roll has own drive;
Top presser roll
Diameter 700 mm; jacket length 4350 mm; stonite roll surface; scraper with hydraulic oscillation
Roll thrust
Air membrane-regulated top roll thrust
Felt guide rolls
8 guide rolls, 273 mm dia., 4500 mm length, with rubber blanket, and one tension roll, 266 mm dia., 4500 mm length, with bronze jacket
Felt suction chests
Yes

Second press

Bottom roll
Suction roll; diameter 860 mm; jacket length 4670 mm; rubber coated bronze jacket, hardness 30-35 PaJ, with 4mm circular holes; one-chamber suction body 4400mm wide; underpressure 4-8 m w.c.; the roll has own drive
Top thrust roll
Diameter 700mm; jacket length 4350mm; stonite roll surface; scraper with hydraulic oscillation
Roll thrust
Top roll thrust is air membrane-regulated
Felt guide rolls
8 guide rolls, 273 mm dia., 4500mm length, with rubber blanket; one tension roll, 266mm dia., 4500 mm length, with bronze blanket
Felt suction chests
Yes
Couch pit
Concrete; size 68m3; mixer 9 rpm; press chamber 10m3; double-check shafts
Pre-drying group
Total of 5 drier rolls; the original design assumed the use of dry felt in bottom position. Adequately, 8 felt guide rolls were mounted (Ø261 mm, length 4480, steel surface); and felt drier roll Ø1500mm; 4350mm length; however, the group is operated without felt, some rolls have been removed; every drier roll has a scraper.

Third press

Bottom roll
Diameter 650mm; jacket length 4350mm; roll jacket is rubber coated, hardness 20-25 PaJ; the roll has own drive;
Top presser roll
Diameter 700mm; jacket length 4350mm; stonite roll surface; scraper with hydraulic oscillation
Roll thrust
Top roll thrust is air membrane-regulated.
Felt guide rolls
8 guide rolls, 273mm dia., 4500mm length, rubber blanket; one tension roll, 266mm dia., 4500 mm length , bronze blanket
Felt suction chests
Yes

Drying section

First drying group
16 drier rolls; one drying screen with bottom guiding; two screen drier rolls and two tensioners; the drying screen is not used and some rolls are removed; all drier rolls have oscillation scraper – oscillation does not work any more.. The group is driven by electric motor through a distribution box.
Second drying group
16 drier rolls; no drying screen; every drier roll has a stationary scraper; the group is driven by electric motor through a distribution box.
Third drying group
18 drier rolls; every drier roll has a stationary scraper; the group is driven by electric motor through a distribution box.

Calibration press

––
Fourth drying group
17 drier rolls; 1 cooling roll; every drier roll has a stationary scraper; the group is driven by electric motor through a distribution box.. Cooling is not used.
Fifth drying group

––
Sixth drying group

––
Cooling section
Cf. the fourth cooling group
Calender
Three-roll calender; bottom roll Ø650mm, driven; centre roll Ø400mm; top roll Ø500mm; all with steel surface; jacket length 4300mm; all rolls have a scraper; loading by weight of the top rolls; relieving by help of electric motor; linear load 3,5kg/cm; the bottom roll broke down without replacement; except this roll, spare parts are available.
Rope web transfer system
Each drying group has own Sheahan rope systems; pulleys; weight tensioning; groove on drier roll
Central lubrication system
357 lubrication points (bearings in drive side DS and tender side OS drier rolls and screens, toothed wheels bearings; oil tank 1x800, 1x1000 litres; 2 gear pump 2x100 l/min; centrifugal separator; heater/cooler.
Steam condensing system
Dimensioned to heat 75 rolls (67 paper dryers, 5 drier rolls in the pre-drying group, 3 screen dryers); connected in 4 groups (20+32+9+4); condensate trapping system.
Steam heads on drier rolls
Mounted on drier rolls on DS; combined Y-shaped heads; one branch is used for steam input, the other for condensate discharge.
Dry knife
One on drier roll No. 54, the other on the cooling roll in the end of the group.
Heat recuperation
Complete system of exchangers, fans and air channels; blowing between drier rolls, air blowing into intermediate floor and basement;
Pope
Pneumatic thrust system
PM drive
11 driving groups (couch, 3 pressed, pre-drying, 4 drying groups, calender, , pope); DC motor; Ward-Leonard DC generator; motor and control rooms cooling system.

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