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Common pulp washing fundamentals – How and why do we wash pulp?

Washing of pulp is a critical unit operation in the fiberline. Although washer designs differ, each type functions to wash pulp using common fundamental principles.

Storage, operation and maintenance of rubber covered rolls

Analysis of your roll records identifies ways to improve rubber roll performance. The cover is a measuring instrument indicating where changes are needed.

Comparison of hard and soft bearing roll balancing methods

Hard bearing type balancers measure residual unbalance. Soft bearing type balancers use a stroboscope and pickups to measure vibration amplitude and direction.

Dryer service case study – setting up a baby dryer doctor

This article reviews a service call made at a USA linerboard mill to diagnose and adjust their dryer doctor, including actions taken and recommendations.

Shoe press case study - Remote services available 24/7/365

Experts monitor your process on a regular basis and contact you when an issue is identified. Your machine also contacts Valmet experts keeping you Up & Running.

Calender case study - CD caliper control & sheet breaks

A southern USA mill requested Valmet expert assistance, specifically a process and condition audit of their online single nip calender.

Guide to dryer section performance, key operating parameters

Here are some notes regarding key operation parameters of the dryer section, starting with the three zones related to effective drying rate.

Sustainable board production with less CO2 emissions and fibers at Nippon Dynawave Packaging

Learn how the partnership between Nippon Dynawave Packaging and Valmet has resulted in increased flexibility, boosted efficiency and enhanced quality at the mill.

High power generation from recovery boilers: What are the limits?

The energy efficiency of modern recovery boilers, such as Äänekoski, can be improved by introducing high power features. Particularly important are the effect of ash composition and ash treatment.

OptiDry Coat energy savings at Hansol Daejeon, a case study

After rebuilding two board machines with OptiDry Coat technology, Hansol Daejeon is very happy with the energy savings. The successful results with PM 31 were repeated and exceeded with PM 32, with excellent cooperation.