Paper/Board
Pressing section
- 3 Total hours
- 12 Courses
- Available languages : French, English & Spanish
- Compatible with : computer, tablet & telephone
- Internet access requested
- Unlimited access for a year
- Log in informations sent within 48hours
- To identify and control all the equipments in the press section
- To control felts and adjust their tension and conditioning
- To manage pressure, vacuum and felt parameters according to the paper quality and energy costs
- Operators (from new to experimented), technicians and new comers engineers working in Paper/Board industries
- Technicians and new comers engineers working in related domain of Paper/Board Industries
Generalities about pressing (15mins)
- Water elimination cost
- Water and fibers
- The different components of the pressing section
Pressing concepts (10mins)
- Nip zone
- Nip width
- Dryness and moisture content
The pressures (10mins)
- Hydraulic pressure
- Linear load
- Pressure profil in the nip
The cambering (10mins)
- Principles
- Settings
Press configuration (15mins)
- History of the press section
- Press covers
- Press material hardness
The different types of press (30mins)
- Pick-up
- Vacuum press
- Central press
- Shoe press
The vacuum (10mins)
- Different types of vacuum systems
- Vacuum pumps
- Settings
Press Felts (10mins)
- Designs
- Felt characteristics
The good functionning of the felt (15mins)
- Felt guiding roll
- Felt tension
Felt conditionning (20mins)
- The different types of showers
- The uhle box
- Parameters and settings
Felt Management (10mins)
- Felt time life
- Felt start-up
- Behavior of the felt along its timelife
Press section management (25mins)
- Pressure control
- Pambering management
- Wet draws
- Felt management
