Dehydration machine for pulp, sludges or similar fibrous materials
US4544447A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1983 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Jul 27, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F9/003
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to an improvement in a dehydration machine for wood pulp, sludges, or similar fibrous material, composed of a lower strainer operating as a support strainer and an upper strainer operating as the cover strainer, which loop support and reversing rolls and are adapted to pass jointly with the material to be dehydrated coming from a material feed through a wedging section and through pairs of pressing rolls in a pressing section, the improvement comprising a laterally sealed wedging section arranged substantially vertically or at an incline, followed directly by a reversal means provided with a lateral seal, and the pressing section including a group of rolls which at the beginning contains a pair of first and second pressing rolls mounted next to each other, with a pressing roll contacting the second pressing roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.