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題名 | 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 |
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作者 | 邱俊雄; 張明基; 林景湖; | 書刊名 | 臺灣林業科學 |
卷期 | 14:2 1999.06[民88.06] |
頁次 | 頁229-233 |
分類號 | 476.1 |
關鍵詞 | 篩板; 圓孔; 篩選; Screen plate; Hole; Screening; |
語文 | 中文(Chinese) |
中文摘要 | 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 120 ㎜,槽寬 45 ㎜,槽深 4.0 ㎜ 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 /2.5 ㎜ 用於再生漿粗篩,結果顯示紙漿處理後污點面積為582 ㎜2/m2 與未處理漿的 710 ㎜2/m2 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。 |
英文摘要 | Pressure screening is the predominant method of cleaning andfractionating fiber suspensions of waste paper treatment in the paper industry. Advancedscreening technology mostly uses centrifugal force and profiled screen plates to separate the stockflow into acceptance flow and rejection streams. With the new type of concave hole platesrun in paper mills, the pulp slurry output is higher than the conventional type. Theconstruction of the new type consists of a 45o slope, oval concave length of 120 ㎜, widthof 45 ㎜, and rowed holes in the valley. Production costs are 1% higher than with theconventional screen; the dirt area of initial pulp is 710 ㎜2/m2, and after screen treatmentis 582 ㎜2/m2, while the cleanness degree is augmented by 16%. Results showed that thering crush strength increased by 5%, and the stock output by 30%. |
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