Fibrous sheet drying part of sheet processing machine, e.g. paper-making machine, has additional sheet drying elements before or after high performance drying unit to increase strength of sheet

摘要

The fibrous sheet drying part of a sheet processing machine, having high performance drying unit(s) consisting of a heated cylinder (6) at least partially wound with the fibrous sheet (1) and supporting belt(s) (2, 3) and an excess pressure hood (5) contacting the cylinder with a pressurized liquid or gas (at a lower temperature than the cylinder exterior) in the wound region, has further sheet drying elements before or after the high performance drying unit.