Method of drying lignocellulose material
US6820350B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | May 31, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27N1/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Methods for drying fibrous lignocellulosic material are provided in connection with the manufacture of fiberboard. The fibrous material is transported with a first drying gas through a first drying line to a first cyclone where the first drying gas in conducted away from the fibrous material. Thereafter, the material is transported with a second drying gas through a second drying line to a second cyclone, where the second drying gas is conducted away while the fibrous material is advanced to a subsequent step. The second drying gas, which is conducted away from the second cyclone, is recirculated to the first drying step and used as a portion of the first drying gas. A portion of the first drying gas, which is conducted away from the first cyclone, is recirculated and used as drying gas at the first drying step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.