Method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine
US11352749B2 · kind B2 · utility
0Cited by
11References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 29, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Sep 29, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine by mixing of a retention chemical to a fibrous stock flowing in an approach flow system of a fiber web machine by a mixer (200) between the attenuator (16) and the headbox (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.