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首页> 外文会议>56th Appita Annual Conference >Optimal Refining Strategy - Separate or Co-Refining? : Investigation using a 16' Double Disc Pilot Refiner
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Optimal Refining Strategy - Separate or Co-Refining? : Investigation using a 16' Double Disc Pilot Refiner

机译：最佳提炼策略-分开还是共提炼？ ：使用16英寸双盘先导磨浆机进行调查

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摘要

Results from pilot scale investigation of two refining strategies for a mixed furnish comprising bleached hardwood kraft short fibre and bleached softwood sulfite pulps using a 16" double disk refiner and at two different blend compositions are presented. The results show that an improvement in key strength properties of handsheets can be achieved if the pulps are co-refined at a lower refining intensity of 1.0 Ws/m, compared to separate refining of the short fibre and long fibre pulps at same applied net specific energy followed by blending. Strength development from co-refined pulp at higher refining intensity was found to be inferior to that of separate refining. Analyses of fibre length distribution and fibre morphology of the unrefined bleached sulfite long fibre pulp show that the characteristics of this pulp are much closer to a hardwood kraft short fibre than a typical softwood kraft pulp. The superior fibre development from co-refining of bleached hardwood kraft and bleached softwood sulfite pulps is likely due to the presence of excessive fibre debris or fines in the sulfite pulp. Separate refining of the sulfite pulp at 1.5 Ws/m refining intensity caused more fibre cutting than fibrillation.
机译：给出了使用16英寸双盘磨浆机和两种不同的混纺成分对包括漂白硬木牛皮短纤维和漂白软木亚硫酸盐浆的混合配料的两种精炼策略进行中试规模研究的结果。结果表明，关键强度性能得到了改善如果将纸浆以1.0 Ws / m的较低精炼强度进行共精炼，则与将短纤维和长纤维纸浆在相同的施加净比能下分别精炼然后进行混合相比，可以实现手抄纸的数量。在较高的精制强度下，精制纸浆的性能不如单独精制；对未精制漂白亚硫酸盐长纤维浆的纤维长度分布和纤维形态的分析表明，该浆的特性比硬木牛皮纸短纤维更接近一种典型的软木牛皮纸浆，是由漂白硬木牛皮纸和漂白白浆共同精制而成的优异纤维山茱wood亚硫酸盐纸浆可能是由于亚硫酸盐纸浆中存在过多的纤维碎片或细屑。以1.5 Ws / m的精炼强度对亚硫酸盐纸浆进行单独的精炼比原纤化导致更多的纤维切割。

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