SM2744 - 5,600mm, Paper Machine, for Newsprint & Uncoated Fine Paper
Production :Newsprint - base paper
Tons per day:500
Original installation and start up 1980
Machine Deckle : 5,600mm
OPERATING SPEED: 1,000 m/min
BALANCE SPEED 1,100 m/min
DRIVE SPEED 1,100 m/min
REBUILDS/UPGRADES
- 1988 drive plc upgrade
- 1990’s transfer and sheet support blow boxes in press to first run first dryer group - BELOIT
- 2007 new METSO QCS O/S
- 2010 upgraded showers in former and double doctor on centre
- press roll (METSO)
- 2010 new sheet defect camera system (METSO) HEAD BOX:
- BELOIT ‘Converflo’ – with vanes Lamellas
FORMER
- Twin wire vertical gap former – BELOIT BELL-BAE 2
- Low vac and high vac ceramic boxes on both wires
PRESS
- Standard configuration BELOIT Tri-Nip with standard suction pick-up
- 1st Press nip with basement felt = 70 kN/m
- 2nd Press nip with suction roll = 90 kN/m
- 3rd Press nip with grooved cc roll = 110 kN/m - Centre roll > top rock and ceramic covers
DRYER PART
- FLÄKT
- SLALOM (Uno-run) Group 1 - Conventional double run (felted) = Groups 2,3,4
- Breaker stack between GRPS 3 + 4 removed c.2007
- Conventional cascade steam & condensate system
- Conventional hood exhaust / heat recovery
- Conventional pocket ventilation system
- Rope threading
- Pressure rating 5 barg max
- 42 cylinders (cans)
1500 mm - 4 steam groups
CALANDER
- BELOIT 6 roll – 5 nip gravity loaded stack
- BELOIT CC King roll
- Queen roll – Counter pressure loading
- Parallel rolls – 4 chilled iron
- Air actuated nip relieving (edge-loads)
MACHINE PULPERS
- Former / Press – non removable concrete chest
- Dryer / Calander – non removable concrete chest
STOCK PREP
- BELOIT softwood DD refiners series 4000 (upgraded 2008) 42”
plates - BLACK CLAWSON Softwood Hydra Pulper
APPROACH FLOW
- CLARK and VICARIO deculator
- BIRD machine (Head box) primary screens (x3)
- Secondary and tertiary screens.
VACUUM PUMPS
- Machine installed NASH Water-Ring Pumps series 4000 and 6000
ROLLS
- S/Couch, pick-up and press suction all BELOIT
- Press S/roll polyurethane cover blind drilled, drilled and grooved