Apparatus for use in burning pulverized fuel
US5429060A · kind A · utility
9Cited by
14References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1994 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Jan 21, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2900/05081
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A structure of a boiler, of the type in which pulverized fuel is burnt within a square barrel-shaped furnace having a vertical axis, is improved so that ignitability is improved and the amount of NO.sub.x produced is decreased. Burners for injecting pulverized fuel-air mixtures are disposed at the central portions of respective edges in a horizontal cross-section of a furnace wall and are inclined downwardly with respect to a horizontal plane. Also, under air nozzles for feeding air are disposed under the respective burners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.