盘磨机增浓打浆的研究

Study on Thickening-Refining with a Low Cosistency Disc Refiner

通过自行设计研制的增浓进浆器，把由普通浆泵来的３％～４％浓度的浆料提高到６％～７％浓度，送入自行设计研制的ＺＤＰ４００液压单盘磨机中进行打浆，结果纤维切断减少，帚化程度增加，浆张物理强度普遍提高，打浆能耗较大幅度降低。并提出了在生产中实施的建议。

Taking advantage of recently developed thickening-feeder,refining at 6%～7% consistency can be realized in a low consistency disc refiner in which refining at 3%～4% consistency is normally carried out.Comparision between refining at 3%～4% consistency and thickening-refining at 6%～7% consistency was conducted in present study.The pulp refined at6. 5% consistency had higher tensile index,burst index,and tear index,but lower specific energy consumption compared with the pulp refined at 3.7% consistency in a beating degree range of 30°～40°SR.Suggestions of implementing this thickeningrefining in mill were discussed.