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Effect of Refiner Plate Bar Angle and pulp properties on the Low Consistency Refining Efficiency in Terms of Power Consumption

引用

Paper And Biomaterials 2023年第4期8卷 27-36页

作者： Huan Liu Jixian Dong Yongping Pu Xiya Guo Lijie Qiao Yan Yan College of Materials Science and Engineering Shaanxi University of Science&TechnologyXi'anShaanxi Province710021China College of Mechanical and Electrical Engineering Shaanxi University of Science&TechnologyXi'anShaanxi Province710021China College of Arts and Design Shaanxi University of Science&TechnologyXi'anShaanxi Province710021China College of Mechanical and Electrical Engineering Xi'an Polytechnic UniversityXi'anShaanxi Province710048China

Power consumption is the energy source of the impact on fibers or pulp during low-consistency(LC)pulp refining,and the strength of refining affects refining quality and *** pulp properties,operating parameters,and bar parameters of the refiner plates are important parameters affecting refining efficiency,which can be defined as the ratio of net to total refining *** this study,LC refining trials for pulps with different consistencies and fiber lengths were conducted using five isometric straightbar plates with different bar angles to explore the influences of the plate bar angle and pulp properties on the no-load power,impact capacity on fibers and refining *** was found that the no-load power of the LC refining process decreased with an increase in the plate bar angle while increased when pulp with higher consistency was refined under the same refining ***,the effect of pulp consistency on the no-load power can be neglected when refining is conducted using plates with larger bar ***,a critical bar angle for straight-bar plates in LC refining may exist,which has the strongest impact on the pulp and highest refining efficiency under the same refining *** addition,the impact capacity of the plate on the pulp and refining efficiency in LC refining can be enhanced by appropriately increasing the pulp consistency and average fiber length when the bar angle of the refiner plate with a sector angle of 40°is less than 30°.Therefore,the efficiency and power consumption of the LC refining process can be adjusted by optimizing the pulp consistency and bar parameters of the refining plates.

关键词： low-consistency refining refiner plate bar angle pulp properties no-load power refining efficiency

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