Arrangement in recovery boiler
US7587994B2 · kind B2 · utility
4Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2006 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Mar 11, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to an arrangement in a recovery boiler into which spent liquor to be incinerated and combustion air are supplied, the arrangement comprising superheaters (4a-4d) in the upper part of the recovery boiler for recovering heat, at least one boiler bank (11) located in a flue gas duct part (10a) known as the second pass, immediately after the recovery boiler, and at least one economizer (12a-12b) in a duct part after the second pass in the recovery boiler flue gas duct (10).The invention comprises an economizer (21) located parallel with the boiler bank (11) in the second pass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.