Role of external fibrillation in high-consistency pulp refining

The mechanical and hydrodynamic phenomena occurring in the refining zones of disc refiners cause fibres to undergo fibrillation. This paper presents a study changes during fibre fibrillation as expressed terms index when pulp with 10%, 15%, 20% consistency. influences tangential force circular bar straight on were compared. are shown depend angle between tangent cutting edge radius from centre disk tangency point. Increasing point gives higher values. revealed relationship strength characteristics handsheets.