VER 3755 - 4953 mm Paper Machine for Newsprint
Production capacity: 261 Tpd, producing paper 27.6 to 55 lbs per 3300 sq.ft
Basis range: 44 to 90 g/m2
Manufacturer: Pussey and Jones, 1956
Speed: 800 m/min
Furnish: softwood 100% (kraft 34%, 65% tone ground wood) and broke 3 - 15%
Left hand drive from headbox
Refiners
Kraft refiner Beloit DD 3000 series with 38” discs
Stock approach
Primary fan pump is an Ingersol Rand 18 HLV with a 1000 hp motor
Pressure screens
Beloit Bird model 18 centriscreen primary
Beloit Johnes model 24 secondary vibrating screen for the rejects
LD cleaners
Primary Bauer 623-4N cleaners 22 off
Secondary cleaners Bauer 623-4N 4 off
Tertiary cleaners Celleco clean pak 350 and RCC
Headbox
Beloit H type with airpad, 3 rectifier rolls, slice width 5359 mm
Weight control by Measurex system with thermal rods on 152 mm centres
Wire section
Pussey and Jones foudrinier type with a dandy roll, wire 216" wide x 216.5" length
7 foil units
1 Orthoflo and 5 suction boxes
Wet end canilevered with run out wire frame
Centres of breast roll and couch roll are approx 19 m
Suction couch with 2 Nash CL 6002 vacuum pumps
Press sections
Suction pick up roll with 3 straight through presses
First press is double felted transfer press with 380 pli loading
Second press is top granite with bottom suction roll 425 pli loading
Third press is top granite with a Beloit Venta-nip bottom roll 480 pli loading
6 Nash H11 A vacuum pumps and one Nash CL6002 vacuum pump
Dryer section
Total of 49 drying cylinders with a Ø of 1524 mm
2 drive sections, 3 felt dryer sections, total of 6 dryer felts
Breaker stack between first and second section dryers
Steam pressure 30 psi
Dryers have bolted ends to increase in operating pressure possible subject to testing
Steam pressure for recirculation 125 psi
4 steam sections for dryers
Johnson rotary siphons and steam heads
Measurex moisture control water shower mounted under dryer 7
3 pocket ventilation blowers with 3 hood exhaust fans
Drying rate of 3.2 on a 32 lb sheet at 2600 fpm
This machine has an inter calender
Calender
2 calenders each with a six roll calender stack
Water temperature control on intermediate rolls
Both calenders have hydraulic control king rolls, max load 300 pli
Measurex caliper control on Caltrol system mounted on C roll second calender stack
Scanner
Measurex model 2002 scanner measuring basis weight, caliper, moisture, brightness, thermatrol, caltrol and moistrol actuators
Pope reel
Pope reel with a 1066 mm Ø drum
Machine drive
The machine drive is sectional by motor and gearboxes, each section with individual drives and independent controls
Reliance Automa 111 digital drive system installed 1996
Rewinder
Cameron model 20 rewinder with twin drums and single motor drive
Rider roll programming and load cell tension control
3 disc brakes on the unwind, 13 slitters, shaft unwind and rewind, reel lowering table
1986 rebuild with Valmet vertical slitter section electric drive motors
Drive with gear unit and Reliance digital controls