Systems and methods for providing improved dewatering performance in a papermaking machine
US8337667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2010 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Feb 24, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G3/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A doctoring system is disclosed for cleaning a moving surface in a papermaking machine, and the doctoring system includes a doctor blade and fluid assist system. The doctor blade is coupled to a doctor blade holder, and the doctor blade holder is coupled to a doctor-back. The fluid assist system is for providing a fluid under positive pressure that is higher than atmospheric pressure. The fluid is directed in a direction generally opposite a direction of movement of the moving surface such that fluid of high momentum is provided to impinge on water resident within the moving surface and adjacent a leading edge of the doctor blade during movement of the moving surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.