涤纶短纤维的最新技术及对我国建设大容量生产线的设想

THE LATEST PROCESSOF POLYESTER STAPLE FIBER AND CONSIDERATION ON LARGE-CAPACITY LINE

涤纶短纤生产线的单线产能已由 80年代的 5 0～ 6 0 t/d发展到 10 0～ 15 0 t/d,增容的主要途径 :前纺增加纺丝位数和喷丝板孔数 ;后加工是加长牵伸辊的长度和提高丝束密度。我国通过对原 5 0 t/d单线产能生产线的成功改造已扩容至 6 0 t/d,已基本具备了自行建设 70～ 10 0 t/d前纺生产线的能力 ,大容量的后加工生产线尚需从国外引进。在建设 15 0 t/d生产线时 ,建议采用“75 t/d× 2前纺生产线 + 15 0 t/d× 1的后加工生产线”的配置方案。

The capacity per line of polyester staple fiber has been raised from5 0～ 6 0 tons/day to 1 0 0～ 1 5 0 tons/day.In China,the capacity per line has been expanded to 6 0 tons/day by re- formation.On the whole,the spinning line of70～ 1 0 0 tons/day can be self- constructed,yet the large- capacity line of after- processing should be introduced from abroad.When setting up the line of1 5 0 tons/day,the position of75 tons/day× 2 spinning line and1 5 0 twos/day× 1 after- processing line is suggested.