Method and apparatus for improving combustion in recovery boilers
US7185594B2 · kind B2 · utility
4Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2004 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Jul 2, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G7/04
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A combustion air system for a recovery boiler is described in which multiple levels of secondary and tertiary combustion air ports each have an even number of ports, with the ports on opposing walls interlaced. The air system lends itself equally well to front/rear wall or sidewall applications and is especially beneficial for rectangular boilers. The air system features large and small-scale horizontal circulation zones superimposed on each other and the ability to adjust the angle of the air jets. Additional features include port dampers for the starting burners and system control based on kinetic energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.