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High expectations met with Kruger's grade conversion rebuild

The interest in lightweight linerboard is on the rise in North America. In response, Kruger decided to let Valmet convert their newsprint machine to board machine.

Goals achieved with coater section rebuild in Mayr-Melnhof Kolicevo

All the targets for the project were achieved. Runnability is better than before, and the efficiency is better, too,” says Rok Sustar from Mayr-Melnhof Kolicevo in Slovenia. A multilayer curtain coater and a blade coater started up after a very short shutdown period in the summer of 2015. A supply system for the two layers of the curtain coater was also installed.

Elevating containerboard manufacturing in India

Sri Andal is aiming at producing high-quality containerboard with tangible efficiency improvements and Valmet offers a suitable solution for achieving these targets.

Attenuators - operation, maintenance and troubleshooting

A pulsation attenuator, inserted in the stock approach piping, acts as a buffer for the headbox against pulsations developed by stock system components.

Valmet Smelt Extraction service for chemical recovery boilers

Valmet has the services to swiftly and safely clean and empty chemical boilers. The turnkey Valmet Smelt Extraction service offers more thorough smelt removal in less time.

Turn-key refiner renovation for Temiscaming, case study

Investigation of a refiner steam leak at the Temiscaming mill uncovers failure, downtime and instability issues. A turn-key refiner renovation by Valmet in under three months restores full capacity refiner operation.

1000th Black Belt shoe press belt runs for ~200 days, case study

Valmet Black Belt features excellent wear resistance, stable structure and long run times. See how these features affected Papierfabrik Palm's success with PM6.

Digital hydraulic concept reduces cost and increases reliability

By using digital hydraulics, fragile and expensive proportional valves are replaced with multiple inexpensive and robust on/off valves. The results include higher reliability, lower energy usage, more accuracy in machine movements, fewer shutdowns, less lost production and lower initial investment and spare parts carrying cost.

Circulating fluidized bed (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.

Safety Tip: Chromium-free Yankee cylinder surface metallization

Valmet has launched a product and application process for the metallization of Yankee cylinders that is 100% chrome free, Infinikote-2. There is absolutely zero generation of the potentially carcinogenic hexavalent chromium during application.