| 刘欢,董继先,罗冲,郭西雅,杨瑞帆,乔丽洁,祁凯,段传武.等参数直齿及弧形齿磨盘对纤维切断的研究[J].中国造纸学报,2020,35(2):75-80 |
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| 等参数直齿及弧形齿磨盘对纤维切断的研究 |
| Study on Fiber Cutting Performance of Straight Bar and Isometric Curved Bar Plates withSame Bar Profile |
| 投稿时间：2019-03-21 |
| DOI：10.11981/j.issn.1000-6842.2020.02.75 |
| 中文关键词: 造纸 盘磨机 直齿 弧形齿 纤维切断 |
| Key Words:papermaking disc refiner straight bar isometric curved bar fiber cutting |
| 基金项目:国家自然科学基金（编号：50745048）；陕西省重点研发计划项目（2020GY-105）。 |
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| 中文摘要: |
| 研究了等参数的等距直齿及弧形齿磨盘对纤维的切断效果，运用纤维平均长度、不同长度组分分布、纤维原始切断率及相邻切断率来分析两磨盘对纤维的切断过程。研究发现，弧形齿及直齿磨盘对纤维的切断机理不同，弧形齿磨盘对纤维的切断均一稳定，能够有效保留纤维的长度；而直齿磨盘对纤维切断作用较强，可实现对纤维的快速切断。因此，相比于直齿磨盘，弧形齿磨盘更适用于废纸浆、阔叶木浆及草浆等的磨浆。 |
| Abstract: |
| In this paper, the cutting performances of isometric curved bar plate and straight bar plate were studied. The average length of fibers, the distribution of length components, the original cutting rate and the adjacent cutting rate of fibers were used to analyze the cutting process of two refining plates. It was found that the cutting mechanisms of the curved bar and the straight bar plates were different. The curved bar plate had uniform fiber cutting, and the fiber length could be effectively reserved; on the other hand the straight bar plate had a strong fiber cutting effect, and the fiber could be cut off fast, therefore the curved bar plate was more suitable for the refining of waste paper pulp, hardwood and straw pulps. |
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