Paper/Board
Stock approach flow
- 4 Total hours
- 11 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 explain the equipment from the machine tank to the headbox including water recirculation
- To manage basis weight, purifiers, dilution and water recirculation
- To master the refining management according to the quality required for the paper
- 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
Process overview (15mins)
- Goal of the stock approach flow
- The different equipments of the stock approach flow
Storage tanks (20mins)
- Goal
- Process agitation impact
- Tank autonomy
Broke Handling (5mins)
- Broke pulper
- The different types of broke
- Broke management
Machine refining (25mins)
- Goal of machine refining
- Review of the effect of refining on fibres
- Specific energy and control settings
Basis weight control (25mins)
- Level box and variable speed pump
- Basis weight valve
- Basis weight process control
First dilution (10mins)
- Single or double dilutions
- The consistencies
- Impact on process and quality
Cleaning (35mins)
- Equipment description and function
- Centrifugal force principle
- The different configurations
- Process settings
Deculator (35mins)
- Goal of the deculator
- Desaeration
- Pressure/Temperature ratio and vacuum management
- Equipment principle
- Process settings
Second dilution (35mins)
- Goal of the second dilution
- Dilution notions
- Dilution principle
- The fan pump
- Dilution control loop
Screening (25mins)
- Goal and principle of the screens
- The different types of screens
- Contaminants geometry and removal
- The different configurations
- Process settings
White water pit (10mins)
- Goal and principle of the water pit
- Overflow system
- Management of white water pit
