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Up & Running articles

Up & Running articles

10 of 155 documents
  • Jan 16, 2018

    CFB evolution from coal to biomass

    Circulating fluidized bed (CFB) technology has adapted to market needs over the last thirty years, from high-ash coal to low-calorific-value biomass, and from petcoke with a high sulfur content to waste fuel with a high chlorine content. CFB technology has proven its capability to adapt to changing technical requirements.

  • Jan 9, 2018

    Field Report - How to read fluids circuit diagrams, Part 3 pneumatics

    The previous articles in this series introduced fluids circuit elements and presented example hydraulic schematics. This article describes two example pneumatic schematic diagrams: winder lowering cradle safety pins and winder belted threader operation.

  • Jan 2, 2018

    Field Report - How to read fluids circuit diagrams, Part 2 hydraulics

    The previous article in this series introduced fluids (hydraulic and pneumatic) circuit elements. This article describes three example hydraulic schematic diagrams: cylinder movement, sizer applicator beam turning and pope reel secondary arm movement.

  • Dec 19, 2017

    Field Report - How to read fluids circuit diagrams, Part 1 symbols

    Reading hydraulic and pneumatic circuit diagrams and being able to make sense out of them is a valuable skill for mill personnel. The first article in this series presents fluid control elements.

  • Dec 12, 2017

    Rick's Tips - Troubleshooting threading system operation

    This article presents an example multiple-device threading system, briefly describing each device, and then lists methods to troubleshoot the threading system.

  • Dec 5, 2017

    Odorless pulp mill in successful operation

    In CMPC Guaíba an odorless pulp mill has now been running for almost two years. Besides reducing emissions and preventing explosions, the installation also contains many safety aspects that provide a safe working environment for the personnel at the pulp mill. CMPC Guaíba is an odorless mill without compromising safety!

  • Nov 28, 2017

    More knowledge, better results

    Why do companies with similar technologies achieve different results? Why do people doing the same task perform differently? The difference often lies in knowledge and skills, both of which can be acquired through learning.

  • Nov 21, 2017

    Case Study - Suction box rebuild

    A newsprint mill in southern USA was losing suction in one of their suction couch rolls. A Valmet rebuild resulted in two years of run time with very little internal pulp buildup or seal strip wear.

  • Nov 14, 2017

    Rick's Tips - Safety in the dryer section

    Since dryer sections require use of high temperatures and pressures, they must be treated with caution. The nature of the dryers’ function and required operating care make it important that they be given close attention in the mill safety program.

  • Nov 7, 2017

    XXL size recovery boilers

    XXL size recovery boilers have operated since 2004, reaching or exceeding all process requirements. The XXL size recovery boilers are typically designed for high dry solids content, high energy efficiency, low air emissions, and environmentally friendly process solutions. Those boilers burn Non-Condensable Gases (NCG) and other side streams coming from the other parts of the mill, and therefore the XXL size recovery boilers are very important in targeting for odorless pulp mills.

Up & Running articles

10 of 155 documents