摘要
研究了两段磨浆工艺中,在第一段磨浆时,采用不同结构的磨盘和转速对纤维结构,如纤维细胞壁厚、分丝以及纤维长度等的影响。实验结果表明:改变磨盘结构可以控制纸浆在磨区内的停留时间,改善纤维结构;提高磨盘转速或者采用齿形为切断型的磨盘,磨浆强度更高,纤维细胞壁被破除得更多、分丝更多,但纤维长度下降。实验结果还表明:提高温度可以使纤维更好地受热润胀和软化,从而更多的保留纤维长度,获得更多的薄壁纤维;采用磨浆强度较高的磨盘还可以有效的节省能耗。
The effects on fiber structure, like fiber wall thickness, fiber longitudinal split and fiber length by using different refiner plate pattern and rotary speed in the primary stage were studied. The result indicated that changing the refiner plate pattern can control the residence time of pulp and improve fiber structure. Higher refining intensity by raised speed or more aggressive plate pattern gave more collapsible fibers with longitudinal splits in the fiber wall but even shorter fibers. Increasing thermal softening would preserve fiber length and at the same time obtain a lot of thin-walled fibers with split fiber walls. Energy savings can be more efficient by using high intensity refiner plates.
出处
《中华纸业》
CAS
北大核心
2008年第18期38-41,共4页
China Pulp & Paper Industry
关键词
磨盘结构
转速
磨浆强度
纤维结构
plate pattern
rotary speed
refining intensity
fiber structure
