Patent · US Expired

Process for drying a material web and device for the application of the process

US4986009A · kind A · utility

29Cited by

10References

26Claims

0Family size

Assignee

J.M. Voith GmbH · DE

Inventors

Winfried Haessner · Heidenheim, DE
Georg Kugler · Heidenheim, DE
Robert Wolf · Woodbury, US

Key dates

Filing date	Mar 10, 1989
Grant date	Jan 22, 1991
Priority date	—
Expiry date	Mar 10, 2009

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF26B13/28
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Process and device for drying a material web which together with a backing belt alternately runs across heatable drying cylinders which are contacted by the material web and across guide rolls contacted by the backing belt. At the travel section of the material web from one drying cylinder to the next, drying air is fed to the material web in relatively narrow blow zones. Located between the narrow blow zones are relatively wide steam release spaces from which the water vapor-laden drying air is removed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.