Tissue
Drying
- 5 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 understand the basics of thermodynamics and aeraulic concepts
- To identify the fluids used, the installations, the regulations of the Yankee/hood section
- To master the operation of the Yankee steam and the condensate networks as well as the hood air networks
- To refine the control parameters according to the incoming tissue paper, the manufactured tissue paper and the energy costs
- Operators (from new to experimented), technicians and new comers engineers working in Paper/Board and Tissue Industries
- Technicians and new comers engineers working in related domain of Paper/Board and Tissue Industries
Generalities on drying (20mins)
- Water elimination costs
- Role of a drying section
- The different drying steps
Steam and condensates installations of the yankee (25mins)
- Process components
- Role and location of the equipments in the drying section
- The different states of the water inside the process circuit
Hoods installations (25mins)
- Process components
- Role and location of the equipments
- Air properties at different location in the process
Notions related to steam and condensates process (35mins)
- Thermodynamic notions
- Pressure notions
- The different types of steam
Flash team recirculation (20mins)
- The installations in details
- The process of flash steam reirculation
- Water/Steam path in the process
The equipments of the Yankee steam and condensates circuits (35mins)
- Working principle of the equipments of the circuit
- Control parameters
Yankee steam and condensates management (25mins)
- Management of the temperature, pressures, deltaP...
- Control loop of the steam and condensates
Notions related to the hood system (20mins)
- Definition of the different air humidities
- Absorption capacity
- Relations between the concepts
Hood control loops (35mins)
- Description and working principle of the equipments
- Control parameters
Hood system management (15mins)
- Air humidity management
- Hoods control loops
Impact of the process on the drying section (45mins)
- Impact of fiber types
- Fiber composition
- Refining
- Sheet formation and pressing on the drying section
