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Common reel problem situations, causes, defects and remedies

Faults or variations in the moisture content or thickness profile, paper filler variations, coating defects, and strong calendering may cause problems on the reel. This article reviews some common reel defects, their symptoms, causes and possible remedies.

Burning NCGs in recovery boilers makes pulp mills odorless

NCG (non-condensable gases) are composed of mostly sulfur gases and methanol. In large concentrations they can be toxic. NCGs can be collected and disposed of using the recovery boiler in a safe and reliable way.

Power and heating plant training increase profitability

Valmet offers training tools to cover all aspects of the plant, ranging from classroom style to web-based E-learning, with solutions tailor-made for your mill.

Overview and troubleshooting of size press threading system

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

Spreader roll reconditioning and upgrades optimize performance

Valmet spreader roll reconditioning service leads to a clear increase in service intervals and cuts overall maintenance costs. In addition to keeping spreader rolls in excellent condition, the spreader roll service ensures optimized roll performance, improved end product quality and reliable, wrinkle-free runs.

On-machine grinding - evaluation, scheduling and process

On-machine grinding is cost- and time-efficient compared to dryer cylinder replacement or off-machine grinding, finishing and renewing cylinders for 40-50 percent less total cost and in less than half the time.

Steam and condensate system performance - explanation and tips

The purpose of a paper machine steam and condensate system is to control steam pressures for optimum drying, provide stable control over the entire operating range and efficiently remove condensate from inside the dryers. This article presents tips for maintaining performance with your S&C systems.

Field Report - Slitter blade and band sharpening

Slitters must be sharp and properly sharpened. The best way to maintain a continual supply of sharp slitter blades is to use the Valmet BladePool service. If, however, you choose to do your own sharpening, here are some general instructions for sharpening at the mill.

Solving wound roll interleaving on an older winder, a case study

Winder sets with a high number of rolls would interleave and wrinkle on the drive side. Calling in an OEM field service expert was a cost-effective solution.

Improve recovery boiler safety with a fixed annual price agreement

A fixed price agreement improves personnel safety and boiler performance. Valmet supplies new liquor sprayer stations and maintains them in new condition.