Heat recovery from vacuum blowers on a paper machine
US11118311B2 · kind B2 · utility
3Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2019 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Dec 13, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A papermaking process including the steps of forming a wet paper web on a papermaking machine, pulling vacuum through the web to remove water from the web and thereby generate discharge air, and diverting at least a portion of the discharge air through a control loop to a hot air drying system within the papermaking process to aid in drying the web, wherein the vacuum is generated by centrifugal blowers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.