Piscussion And Optimization Of Dewatering At Different Stages Of Cardboard Paper Machine

Nowadays packaging paper industry develops very fast,and Liner market demand is to be more dominate.This paper take one famous liner paper machine which base in Zhejiang Province as an example,analyze paper making process,especially the shortages of sheet drainage in different phase,then to improve and optimization.Through analysis and discussion of current issue of drainage in forming,press and dryer part,find root cause and give out optimization and improvement plan.Forming drainage analyze the related chemical,headbox,shaker,drainage element,vacuum system in detail which affect forming dewatering,press drainage analyze shoe press,vacuum panel and felt design which affect press dewatering,dryer drainage analyze the steam cooling water system and air hood vantilation system which affect dryer dewatering.Detail discussion and optimization of drainage in different phase be given here according to the influence factors,then refer to long time production record data,get out the final sheet quality and production capacity effect.This paper proposed the importance of sheet drainage,high production capacity and good production energy saving required us to technology improve and process optimize,then can survive and develop in fierce market competition.