Press Section Performance Optimization Through Technology, 2021 TAPPICon Live (21TAPL)

One of the major challenges in press section performance is choosing the right press fabric for the press system. Previously, roll cover and press felt engineers worked independently on a press system and, at times, they did so to the detriment of performance to the paper machine.   

Typically, press dewatering is a blend of nip and uhle box dewatering. Paper machine vintage, speed, press load and grade structure dictate the split of each dewatering type. Choosing the proper press fabric and roll cover design is critical to optimize machine performance and paper quality.   

Through the development of modular press fabrics and predictive modeling tools, Voith engineers now can work together to maximize sheet dryness and optimize press section dewatering. This paper will step through the process of identifying the opportunity of press system improvement through the selection of press roll covers and press felts utilizing modeling techniques. 

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