During The Use Of The Equipment Or System, It Is Called Equipment Failure When The Equipment Or System Is Shut Down Due To The Loss Of Specified Functions Or Reduced Efficiency For Some Reason. There Are Two Main Types Of Downtime Failures Of Paper Machines: Productive Inherent Failures And Equipment Failures.

（1） Characteristics And Rules Of Productive Inherent Failure Shutdown

This Type Of Shutdown Is Mainly To Ensure The Product Quality And Meet The Production Process Requirements, Especially For The Production Of Cultural Paper. The Main Reasons For The Shutdown Are: First, The Scrubbing Work. The Functions Of The Wet End Filter And Dehydration Elements (or Materials) Decline After A Certain Period Of Use, And The Dewatering And Filtration Cannot Reach The Initial Effect, So They Need To Be Cleaned Regularly. Second, Replace The Main Process Equipment, Such As Copper Mesh And Woolen Cloth, Which Need To Be Replaced Regularly After Reaching The Service Life; The Press Cots And Stone Rolls Are Worn By The Paper And Scraper, And The Middle Height Of The Roll Surface Changes, Which Will Affect The Product Quality, And They Also Need To Be Repaired Regularly.

（2） Characteristics And Analysis Of Equipment Fault Shutdown

Due To The Particularity And Complexity Of The Paper Machine Production Process, Equipment Failures Have The Following Characteristics:

1. There Are Many Equipment Failure Points, And Equipment Failure Shutdown Often Occurs;

2. The Service Life Of Some Parts Is Short, And The Frequency Of Replacing Spare Parts Is High;

3. There Is A Large Gap Between The Failure Cycle And The Maintenance Time Occupied, Which Is Difficult To Manage. There Are Many Reasons For The Equipment Failure Of Paper Machine. Causing Equipment