Stratified staging in kilns
US7452203B2 · kind B2 · utility
5Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2006 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Feb 8, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B7/36
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a kiln whose interior is heated by combustion with oxidant having a higher oxygen content than air, streams of staging oxidant are fed into the space between the combustion zone and the inner surface of the kiln, and the stoichiometric ratios and amounts of oxygen in the combustion zone and in the overall operation of the kiln are adjusted to provide control or reduction of NOx formation while maintaining or increasing productivity of the kiln.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.