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2019 Vol.51, Issue 2 Preview Page
Characterization of the Parameters for the Refining Intensity in Terms of Performance
Huan Liu12†
,
Jixian Dong12
,
Hui Jing12
,
Xiya Guo123
,
Lijie Qiao12
1College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021
2China Key Laboratory of Light Industry Equipment Manufacturing Intelligence，Xi’an, Shaanxi Province, 710021
3College of Art and Design, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021
†Corresponding author: E-Mail: liuhsust@126.com
30 April 2019. pp. 26-39
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Abstract

Refining intensity is typically used to measure the efficiency of refining in the pulp and paper industry, and the refining intensity is difficult to analyze due to the various parameters influencing it. In this paper, the previously published refining intensities of a disc refiner were analyzed, and the characterization parameters were proposed. Based on the bar interactions, the refining intensity was established using theoretical derivation. The cut edge length (CEL), the CEL-based characterization parameters and bar interactions (BI) characterization parameters were used to show that the CEL directly reflected the number of bar interaction points, but it had no direct relationship with the bar interaction area (BIA) and bar interaction length (BIL). By analyzing the relationship between the different refining intensities and the properties of the fibers or pulp, it could be concluded that the specific refining energy (SRE) better reflected the variations in the beating degree of the pulp during the refining process compared with the specific surface load (SSL) and BI-based refining intensities. Also, the intensity based on the bar interaction length (BIL) can better characterize the changes in the average fiber length. However, all the intensities analyzed in this paper do not comprehensively describe the refining process and cannot predict all the parameters of the pulp and fibers but only partly characterize their properties. Therefore, further studies are required to establish a more comprehensive and precise measure of refining intensity.

Keywords
Pulp and paper
disc refiner
bar interaction
refining intensity
characterization parameters
References

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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 51
  • No :2
  • Pages :26-39
  • Received Date : 2018-10-21
  • Revised Date : 2019-03-29
  • Accepted Date : 2019-04-02
  • DOI :https://doi.org/10.7584/JKTAPPI.2019.04.51.2.26
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