涤纶短纤维装置增产改造  

Capacity enlargement of PET staple fiber plant

作　　者：王建中[1] 孙贵捷[1] 张勇[1] 江桂新[1] 

机构地区：[1]天津石化公司化纤厂,天津300271

出　　处：《合成纤维工业》2004年第4期52-53,共2页China Synthetic Fiber Industry

摘　　要：从设备与工艺两方面讨论了涤纶短纤维装置的增产改造.将喷丝孔排列从原3600孔改为4000孔,4个角和4个端点喷丝孔排列的倾角比3600孔加大.选择侧吹风速度3.0～3.4 m/s,风温23℃,提高一道拉伸倍数,降低二道拉伸倍数,紧张热定型温度提高5～10℃,松弛热定型温度提高10℃,并优化了其他工艺条件,实现单线增产10%,产品质量提高.The capacity enlargement of PET staple fiber plant was discussed from the aspects of equipments and process technology. The number of spinneret hole was increased from 3 600 to 4 000. The arrangement of 4 000 spinneret holes had bigger inclination angles than that of 3 600 spinneret holes at four angles and end points. The capacity of one line can be increased by 10% with improved product quality by selecting cross air speed 3.0 -3.4 m/s and temperature 231 , increasing first drawing ratio, decreasing second drawing ratio, elevating tension-setting and shrink-setting temperatures by 5 - 10℃ and 10℃ respectively, and optimizing other process conditions.

关 键 词：涤纶短纤维装置 增产改造 聚对苯二甲酸乙二酯纤维 聚酯熔体 喷丝板 热定型温度 

分 类 号：TQ342.21[化学工程—化纤工业]