凹槽圓孔篩板對再生漿篩選品質之影響

Effects of Concave Hole Plates on Screening Quality of Secondary Fiber

邱俊雄(Chun-Hsiung Chiou) ； 張明基(Ming-Ji Chang) ； 林景湖(Ching-Hu Lin)

《台灣林業科學》 14卷2期 (1999/06) Pp. 229-233

https://doi.org/10.7075/TJFS.199906.0229

摘要

廢紙處理中篩選為重要的一環可淨漿、散漿；以離心力與凹凸面篩板可分出良漿與棄漿，紙廠使用圓筒型凹槽篩板，紙漿的出量比傳統平滑面篩板提升，凹槽篩板的構造為凹槽120mm，槽寬45mm，槽深4.0mm為長橢圓形，凹槽之斜邊為45°，篩板製造費用高出平滑型1%，孔徑大小依篩選段數、位置而定，本試驗三個篩板孔徑分別為1.2/2.0/2.5mm用於再生漿粗篩，結果顯示紙漿處理後污點面積為582mm^2/平方公尺與未處理漿的710mm^2/平方公尺相較潔淨度提高16%，環壓強度提高5%、紙漿出量提高30%，可減輕下段細篩之負荷。

關鍵字

篩板 ； 圓孔 ； 篩選

並列摘要

Pressure screening is the predominant method of cleaning and fractionating fiber suspensions of waste paper treatment in the paper industry. Advanced screening technology mostly uses centrifugal force and profiled screen plates to separate the stock flow into acceptance flow and rejection streams. With the new type of concave hole plates run in paper mills, the pulp slurry output is higher than the conventional type. The construction of the new type consists of a 450 slope, oval concave length of 120 mm, width of 45 mm, and rowed holes in the valley. Production costs are 1% higher than with the conventional screen; the dirt area of initial pulp is 710 mm^2/m^2, and after screen treatment is 582 mm^2/m^2, while the cleanness degree is augmented by 16%. Results showed that the ring crush strength increased by 5%, and the stock output by 30%.

並列關鍵字

screen plate ； hole ； screening