High consistency refiner segments
By optimizing the refining process and refiner segments, mills operational costs and product quality can be greatly affected.
In the field of refining, Valmet is continuously developing new refiner segment technology to improve customers’ competitiveness. As a result of this we can now present a new unidirectional segment concept called ServoNavitas.
Combining a number of innovations
Valmet’s new concept combines a number of patented innovations and details. The use of features in ServoNavitas is made based on customer needs and refiners operation.
ServoNavitas offers an effective patented, segment design toolbox to change the basics of refining. Energy consumption, fiber quality and segment lifetime can all be tuned to new levels.
Valmet can optimize your refiners
Valmet has a long tradition of serving customers on all continents. We have gained detailed knowledge for most types of refiners, both self installed as well as those made by our competitors. We are now willing to start collaborating with our customers and committing ourselves to optimizing refiner processes with new technology.
Valmet offers customers an extensive contact network, experienced refiner specialists, effective refiner segment design toolbox with patented features and the most effective research and development support. Our philosophy is that every refiner is unique and needs custom designed refiner segments
There is always a higher level
There are limits. But honestly, do we know exactly when the limit is reached? Our brains create solutions to problems based on the information at hand and then we think we’ve reached the limit. We regard this as “state-of-the-art” technology. We optimize the processes and then often stabilize them at that level. Some engineers might feel satisfied at this point, but at Valmet we don’t.
Where do you want to go?
|Turbine segments||Energy-saving designs involve spreading the wood flow evenly over the segment rings without loosing speed|
|Attack bar||Inclined bars for sharper leading edges and cleaner grooves as well as energy saving over segment lifetime|
|Low energy||In the Low energy segments the bars form a pumping angle at a very critical area in the disc gap|
|Quattro feed||Utilizes CD stator inlet in a new way for further improved feeding and more unified fiber distribution|
|Shive clean||This new technology takes benefit from the fact that in the disc gap steam and fibers are behaving differently|
|Hold back||Flow optimized feeding pattern|
|Mild defibration||Innovation for longer and stronger fibers|
|Edge lock||The unique two-step bar leading edge design of the Edge lock segments makes possible more effective refining of fibers|
|Low shive||With Low shives segments pulp quality can been improved, shive content reduced and refiners’ operation kept stable|
|Soft bar||Ensuring smooth and gentle feed, leveling out incoming feed variations|
|Super feed||Super feed and Turbine segments center plate improves feeding at the eye of the refiner|
|Steam lock||Forms a fiber pad to prevent flow back steam entering to refiner feed|
|High fibrallation||High fibrillation segments give better control of the disc gap and improve the loadability of the refiners|
|Selective segments||Selective segments feed steam forward in the refiner disc gap|
|Wear cap||Cap in stator segments shield against hits caused by impurities in fiber flow|