SURFACE MECHANICAL TREATMENT OF TMP PULP FIBERS USING GRIT MATERIAL

机译：用砂砾材料对TMP纸浆纤维进行表面机械处理

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Surface mechanical treatment of pulp fibers using grit material in thermomechanical pulp (TMP) refining after the first-stage refining and the subsequent refining of the treated pulp were studied. The surface mechanical treatment was performed using an ultra-fine friction grinder. The grit size of the grinding stone, the intensity of treatment and the rotational speed were optimized to accomplish fast development and to minimize the shortening of pulp fibers. The subsequent refining was carried out using a wing defibrator operated under typical TMP refining conditions. According to the results, surface mechanical treatment using a grinding stone with a grit diameter of 297-420 μm, operated at a contact point of the stones and a high rotational speed of 1500 rpm, provided an efficient disruption of pulp fibers with minimized cutting. Disruption of the pulp about 20% of total energy consumption produced a promising fracture of fiber cell wall for the further development. In the subsequent refining, the disrupted pulp was found to result in faster development of pulp freeness, while requiring 37% less energy. Laboratory sheets showed no significant differences in properties between the disrupted and non-disrupted pulps at a given freeness.

机译：研究了在第一步精制和随后精制处理过的纸浆之后，在热机械纸浆（TMP）精制中使用砂砾材料对纸浆纤维进行的表面机械处理。使用超细摩擦研磨机进行表面机械处理。优化了磨石的粒度，处理强度和转速，以实现快速发展并最大程度地减少纸浆纤维的缩短。随后的精制是使用在典型的TMP精制条件下运行的机翼除颤器进行的。根据结果，使用砂砾直径为297-420μm的磨石进行表面机械处理，并在磨石的接触点进行操作，并以1500 rpm的高转速进行操作，可在最大程度减少切割的情况下有效破碎纸浆纤维。纸浆的破碎约占总能耗的20％，使纤维细胞壁破裂，有望进一步发展。在随后的提炼中，发现破碎的纸浆可以更快地发展纸浆的游离度，同时所需的能源要少37％。实验室纸页显示，在给定的游离度下，破碎纸浆和未破碎纸浆的性能没有显着差异。

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《International Mechanical Pulping Conference; 20070506-09; Minneapolis,MN(US)》|2007年|P.954961|共2页
会议地点 MinneapolisMN(US)
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Phichit Somboon; Hannu Paulapuro;
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Helsinki University of Technology Laboratory of Paper and Printing Technology P.O. Box 6300, FIN-02015 TKK, Finland;

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原文格式 PDF
正文语种 eng
中图分类造纸工业;
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2. Surface Treatment of Chemithermomechanical Pulp (CTMP) to Prevent Brightness Reversion [J] . Juan Ramos, Leandro Paulino, Jose Turrado, Cellulose Chemistry and Technology: International Journal for Physics, Chemistry and Technology of Cellulose and Lignin . 2003,第1a2期

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3. The effect of mechanical treatment on softwood kraft pulp fibers. Fiber surface layer [J] . Olli Joutsimo, Leif Robertsen Paperi ja Puu . 2004,第7期

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4. SURFACE MECHANICAL TREATMENT OF TMP PULP FIBERS USING GRIT MATERIAL [C] . Phichit Somboon, Hannu Paulapuro International Mechanical Pulping Conference . 2007

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5. The effects of fiber surface treatments on the mechanical properties of graphite fiber/bismaleimide composites. [D] . Chang, Tao Chou. 1991

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6. Laccase-Catalyzed Surface Modification of Thermo-Mechanical Pulp (TMP) for the Production of Wood Fiber Insulation Boards Using Industrial Process Water [O] . Mark Schubert, Pascal Ruedin, Chiara Civardi, -1

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SURFACE MECHANICAL TREATMENT OF TMP PULP FIBERS USING GRIT MATERIAL

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