Paper Machine Cascade Steam Systems

Online Course Description:
Paper and board machines use steam-heated dryer cylinders to dry the sheet to its final moisture target. In a cascade steam system, fresh steam is typically introduced to the main steam group and then it is cascaded upstream to the intermediate and wet end steam groups. This arrangement automatically stair steps steam pressures (and steam temperatures) upwards as the sheet travels through the dryer section and moisture becomes harder to remove. This module describes the steam and condensate flows and controls for cascade steam systems. It also discusses their advantages, limitations, and safety hazards and guidelines.
Language: English
Training Time: Individual Module, 31 minutes
ACCESS: 5 days