Published June 4, 2002 | Version v1
Patent Open

Multiport cylinder dryer with low thermal resistance and high heat transfer

  • 1. Argonne National Laboratory

Contributors

Patent applicant:

Patent assignee:

Description

A multiport cylinder dryer for use with drying a web of pulp, paper, or similar material, and a method for drying a moving web of pulp, paper, or similar material are provided. The multiport cylinder dryer includes an outer cylinder dryer surface for transferring heat to a moving web to be dried. A plurality of multiport flow passages are positioned close to the outer cylinder dryer surface. The multiport flow passages are arranged for channeling steam flow for heating the cylinder dryer surface. The multiport cylinder dryer achieves significantly higher drying rates than conventional dryers by minimizing the condensate layer and maximizing the heat transfer surface area. The dominant heat transfer mode in the multiport cylinder dryer is convection, which is significantly more effective than conduction, the dominant heat transfer mode in conventional dryers.

Files

US6397489.pdf

Files (243.5 kB)

Name Size Download all
md5:a85e822ff3b47e02deafe68cc5e3cf72
243.5 kB Preview Download

Additional details

Identifiers

Patent number
US 6397489 B1
Patent application number
US 64869300 A
Other
oai:uchicago.tind.io:8638

Dates

Patent filed
2000-08-25

UChicago Information

Division(s)
Physical Sciences Division
Department(s)
Physics