System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents
US7964064B2 · kind B2 · utility
5Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2008 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Nov 20, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides an automatic control system, method and paper manufacturing machine using such control system for automatically controlling the amount of press section dewatering via the metered application of chemical dewatering agents applied to a paper web in a paper manufacturing process. The control system includes a feedback controller for controlling the amount of chemical dewatering agent applied to a paper web, and a monitoring device for obtaining a measurement of the moisture of the paper web exiting the press section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.