Influence of temperature on energy efficiency in double disc chip refining

• As part of the investment project at Holmen Paper Braviken, the primary stage refining system of counter-rotating RGP68DD refiners (Metso) has been investigated. It is considered to be one of the most energy efficient refiners when comparing to e.g. tensile index. The aim with this work is to optimize the refining conditions for the RGP68DD in regard to refining temperature. Full-scale trials were made where SEC and temperature were successively increased at the same time. The SEC was mainly controlled with motor load and production rate. Feed- and housing- pressure were used to control temperature. The results show that stable specific energy consumption, and refining conditions regarding temperature, resulted in a pulp with increased quality.    

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Kemiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Chemical Engineering (hsv//eng)

Nyckelord

Control temperatures; Counter rotating; Energy efficient; Full-scale trials; Holmen papers; Investment projects; Motor loads; Production rates; Refining conditions; Refining systems; Specific energy consumption

Chemical engineering

Kemiteknik

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)