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Upgrade Solutions

GL&V has vast experience with various tailor-made upgrade projects, including single equipment replacement and modifications, as well as process efficiency improvements with technology upgrades.

Most mills increase production over time or target other pulp grades like dissoving pulp. By rebuilding the existing batch cooking to a DUALC™ cooking system, the capacity increase will be achieved and the production economy improves as well. The DUALC cooking system also improves pulp qualities like strength, yield and bleachability. A DUALC cooking system allows tailor-made pulp and multiple species cooking.

GL&V also supplies new digesters and modifications/repairs of existing digesters.

  • Conventional batch cooking rebuild to DUALC™ cooking system
  • Process modification to dissolving pulp production
  • Modifications of existing digesters: Conical bottom parts, screen replacements
  • Process modifications like pump discharge
  • Digester specific equipment: steam packers, screens, steam nozzles
  • Cooking Plant equipment: Air Evacuation system, heat exchangers, blow heat recovery etc.
  • Lower steam consumption
  • Better pulp quality – strength, yield and bleachability
  • More stable operation – savings and environmental
  • Maximize the reuse of existing equipment
  • DUALC™ Double Displacement does not need the upper displacement screens in digesters – savings and shorter shut-down
  • Production increases without compromising strength -- just add new digester
general requests

Upgrade Solutions

GL&V has vast experience with various tailor-made upgrade projects, including single equipment replacement and modifications, as well as process efficiency improvements with technology upgrades.

  • Further Details

    Most mills increase production over time or target other pulp grades like dissoving pulp. By rebuilding the existing batch cooking to a DUALC™ cooking system, the capacity increase will be achieved and the production economy improves as well. The DUALC cooking system also improves pulp qualities like strength, yield and bleachability. A DUALC cooking system allows tailor-made pulp and multiple species cooking.

    GL&V also supplies new digesters and modifications/repairs of existing digesters.

  • Technical Information

    • Conventional batch cooking rebuild to DUALC™ cooking system
    • Process modification to dissolving pulp production
    • Modifications of existing digesters: Conical bottom parts, screen replacements
    • Process modifications like pump discharge
    • Digester specific equipment: steam packers, screens, steam nozzles
    • Cooking Plant equipment: Air Evacuation system, heat exchangers, blow heat recovery etc.

  • Benefits

    • Lower steam consumption
    • Better pulp quality – strength, yield and bleachability
    • More stable operation – savings and environmental
    • Maximize the reuse of existing equipment
    • DUALC™ Double Displacement does not need the upper displacement screens in digesters – savings and shorter shut-down
    • Production increases without compromising strength -- just add new digester

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