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Research on Refining Intensity of Disc Refiner Specific Contact Surface Load
Received:May 21, 2021  
DOI：10.11980/j.issn.0254-508X.2021.10.007
Key Words:refining intensity  disc refiner  bar contact surface  specific contact surface load  bar edge length
Fund Project:国家自然科学基金项目（50745048）；陕西省科技厅重点研发计划项目（2020GY-105）。
Author NameAffiliationPostcode
GUO Xiya College of Mechanical and Electrical Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021
China Key Lab of Light Industry Equipment Manufacturing Intelligence， Xi’an， Shaanxi Province，710021
College of Design and Art， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 		710021
DONG Jixian* College of Mechanical and Electrical Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021
China Key Lab of Light Industry Equipment Manufacturing Intelligence， Xi’an， Shaanxi Province，710021 		710021
LIU Huan College of Mechanical and Electrical Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021
China Key Lab of Light Industry Equipment Manufacturing Intelligence， Xi’an， Shaanxi Province，710021 		710021
DUAN Chuanwu College of Mechanical and Electrical Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021
China Key Lab of Light Industry Equipment Manufacturing Intelligence， Xi’an， Shaanxi Province，710021 		710021
QI Kai College of Mechanical and Electrical Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021
China Key Lab of Light Industry Equipment Manufacturing Intelligence， Xi’an， Shaanxi Province，710021 		710021
YANG Ruifan College of Mechanical and Electrical Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021
China Key Lab of Light Industry Equipment Manufacturing Intelligence， Xi’an， Shaanxi Province，710021 		710021
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Abstract:Based on bar edge length， according to the refining mechanism of disc refiner， bar contact area was introduced into the study of refining intensity. Combined with the main bar parameters that affected refining quality such as bar width， groove width， bar angle， inner and outer diameter of refining plate， etc.， the refining intensity theory of specific contact surface load （SCSL） was deduced according to the theoretical research on refining strength. The correctness of SCSL was verified through seven low-consistency beating experiments towards bleached softwood pulp on disc refiner with different bar width， groove width， bar edge length and speed. The conclusions not only improved the existing refining intensity theory to a certain extent， but also provided guidance for the selection of refining plate and design of bar of disc refiner.
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