首页|Effect of Refiner Plate Bar Angle and Pulp Properties on the Low Consistency Refining Efficiency in Terms of Power Consumption

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

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  • 国家科技期刊平台
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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 efficiency.The 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 power.In this study,LC refining trials for pulps with different consistencies and fiber lengths were conducted using five isometric straight-bar 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 efficiency.It 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 conditions.However,the effect of pulp consistency on the no-load power can be neglected when refining is conducted using plates with larger bar angles.Meanwhile,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 conditions.In 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.

low-consistency refiningrefiner platebar anglepulp propertiesno-load powerrefining efficiency

Huan Liu、Jixian Dong、Yongping Pu、Xiya Guo、Lijie Qiao、Yan Yan

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College of Materials Science and Engineering,Shaanxi University of Science & Technology,Xi'an,Shaanxi Province,710021,China

College of Mechanical and Electrical Engineering,Shaanxi University of Science & Technology,Xi'an,Shaanxi Province,710021,China

College of Arts and Design,Shaanxi University of Science & Technology,Xi'an,Shaanxi Province,710021,China

College of Mechanical and Electrical Engineering,Xi'an Polytechnic University,Xi'an,Shaanxi Province,710048,China

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国家自然科学基金Shaanxi Provincial Key Research and Development ProjectNatural Science Basic Research Program of Shaanxi ProvinceHenan Cigarette Industry Sheet Co.,LtdNantong Huayan Casting Co.,Ltd.for manufacturing the experimental refining plates and guiding the experiments

507450482020 GY-1052023-JC-QN-0154

2023

10.26599/PBM.2023.9260023

造纸与生物质材料(英文)
中国造纸学会　中国制浆造纸研究院

造纸与生物质材料(英文)

CHSSCD
影响因子：0.082
ISSN：2096-2355
年,卷(期)：2023.8(4)
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