Fuel firing method
US4246853A · kind A · utility
24Cited by
11References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Aug 27, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C7/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of operating a pulverized coal furnace wherein the coal is introduced with minimal oxygen through an intermediate zone of the furnace which also has a relatively low oxygen content. The carbon particles are projected into an upstream portion of the furnace where secondary air is introduced to burn the carbon particles. The combustion products pass upwardly through the intermediate zone to a downstream zone where tertiary air is added to complete combustion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.