100,000 TPY Kraft Pulp Mill with 3 Paper Machines

Roaring Spring Paper Mill

Aerial view of Paper Mill and Surroundings (333 Acres)

Roaring Spring Mill Process Description

Roaring Spring Mill Process Description

Capability

  • Specialty Machine
  • Bill-Blade Coater

Benefit

  • Quick grade changes allow for cost effective smaller runs vs. the competition
  • Offer full colored papers palate and custom color matching - we can match any color
  • Allows for application of coating to one side along with various treatments to other side to produce a unique mix of products C1S, bond finish, etc
  • More cost effective than off-machine coating

Paper Machine Capabilities and Benefits

Capability

  • Specialty Machine
  • Twin High-Solids Metering Coater
  • Flexo/Offset Gravure Coater

Benefit

  • Can apply different coatings to each side of the sheet at the same time at the first coating station
  • Can apply an additional coating to one side at the second coating station
  • Produce unique specialty papers that require different surface coatings and treatments
  • More cost effective than off-machine coating

Paper Machine Capabilities and Benefits

Capability

  • Specialty Machine
  • Compact Wet End
  • Bill-Blade Coater
  • Air Knife Coater

Benefit

  • Quick grade changes allow for cost-effective smaller runs vs. the competition
  • Cost-effective quick dandy roll changes allow for smaller watermarking runs
  • Can serve the highest security applications with thread-containing papers/li>
  • Produce unique specialty papers that require different surface coatings and treatments
  • More cost effective than off-machine coating

Paper Machine Capabilities and Benefits

Roll Stacker Capabilities and Benefits

  • Automated Stacker and Retrieval System for Specialty Paper Reels

Benefit

  • Cost-effective means to rapidly serve customers without having to carry excessive finished goods inventory
  • Proven advantage in the security and bond market
  • Capacity of 537 reels of paper

Paper Machine Capabilities and Benefits

Rewinders (5) Capabilities and Benefits Capabilities and Benefits

  • Cameron Duplex Winders for Roll Slitting
  • Jagenberg Winder

Benefit

  • Flexibility to provide narrow justify-content-center widths and customized lengths
  • Competitive and cost effective vs. larger mills, as many of them do not have this capability

Waste Treatment

2 Lagoons, 2 Reaeration Tanks, 2 Primary Clarifiers and 3 Final Clarifiers

Wood Yard

Chip Plant (100% Hardwood)
  • Operational in 1983
  • Chop 900 TPD
  • Unload 40-70 trucks/day
  • 80% Round wood
  • 20% Chips

Pulping (92K TPY)

Cooking
  • 5 (2250 ft3) Batch Digesters
  • 2 Blow Towers
Washing
  • 5 BS Vacuum Washers
Screening
  • 4 Pressure Screens
  • 2 Centrifugal Cleaners
Bleaching
  • 3-Stage ECF Beaching
  • 86.5 Brightness

Steam Supply/Distribution 600/150 psig (lbs/hr)

Recovery Boiler #3 (1983)
  • Liquor – 117k
  • Oil – 75k
Power Boiler #3 (1977 - Swing)
  • Max – 125k
  • Coal
  • NCGs
  • Bark
  • Sludge
Power Boiler #4 (1996 – Backup)
  • #6 Oil/ Natural Gas – 150k

Boilers

Recovery Boiler #3
  • Primary Fuel – Black Liquor – 811k lbs/day
  • Single liquor gun - oscillating
  • Secondary Fuel - #6 Fuel Oil, 1% Sulfur (5 auxiliary burners)
  • Average Steam Production – 110k lbs/hour
Power Boiler #3
  • Primary Fuel – Coal– Average 100 tons/day
  • Other Fuels:
  • Bark - 65 Tons/day
  • Sludge - 25 tons/day
  • NCGs (Dilute & Concentrated)
  • Average Steam Production – 100k lbs/hour
Power Boiler #4 (600 psi)
  • Primary Fuel
  • Natural Gas
  • #6 Fuel Oil, 0.5% Sulfur
  • Maximum Steam Production – 150k lbs/hour

Evaporators/Lime Slaker/Causticizing Tanks/Lime Kiln

Falling Film Evaporators
  • 4-Bodies, 7 Effects
  • 114.7 kpph – typical rate
Vapor Compression Evaporator (VCE)
  • 87.4 kpph – typical rate
Lime Slaker and Causticizing Tanks
  • 209k gallons green liquor/day – typical rate
Lime Kiln
  • 86k gallons Lime mud per day @ 78% solids

Material Prep and Pulp Press

Pulpers

  • Batch Hi-Lo
  • Batch Pine
  • Batch Dyna-Pulper
  • Continuous Dry-End

Capacity (Ft3)

  • 800
  • 1,200
  • 700
  • 260