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Helpful coating tips: jet angle, gap, critical factors, etc.

Factors that increase coat weight: decrease of blade load, decrease tip angle, increased viscosity/solids, increase speeds & increase in sheet roughness.

The mechanism, need for and effect of reel drum grooving

As machine speed increases and sheet porosity decreases grooving of the reel drum becomes necessary in order to avoid sheet wrinkles, sheet breaks and quality defects.

ReplaReplace IR drying with OptiDry Coat to reduce energy consumptionace IR drying with OptiDry Coat to reduce energy consumption

The OptiDry Coat high intensity air dryer is a compact air dryer using gas as a heat source and features high drying capacity, reduced space requirement and excellent runnability. OptiDry Coat is an especially attractive replacement for energy-intensive infrared dryers on coated lines.

LignoBoost plants produce large volumes of lignin, case studies

LignoBoost™ is a complete system, exclusively available from Valmet, which extracts lignin from Kraft black liquor. The first two commercial installations are up and running, producing high-quality lignin.

Refining Case StaRefining - More water out for less energy in, a case studyudy - More water out for less energy in

Upgrading Optimum TMP screw presses via a Valmet Screw Press Upgrade provided consistent secondary refining consistency for low press inlet consistency. The increased dewatering capacity solved a major design hurdle for a TMP mill. Energy savings of 12% were a bonus.

Valmet Coater Blades eC and nC for challenging coating positions

Valmet Coater Blades eC and nC overcome the many challenges in blade coating, including paper quality variations, short blade life, the high cost of blades and frequent blade changes.

XXL size recovery boilers - safety and availability, case study

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.

Disposing of secondary sludge (biosludge) in the recovery boiler

Biosludge is the most problematic residue of the effluent treatment process when it comes to disposal. The high moisture content makes it difficult and costly to landfill or to incinerate in a power boiler. A proven new disposal method is discussed in this article.

Expansion of chemical recovery capacity by 64%, case study

The massive upgrade of the Södra Cell Värö mill in Sweden has increased the mill's capacity by 64%. This white paper examines the changes made to the evaporation and chemical recovery boiler area as part of the project and their role in the production capacity increase, improved environmental performance, as well as increased efficiency of the upgraded mill.

Guaíba odorless pulp mill in successful operation, a case study

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!