Pulverized coal combustion burner and combustion method thereby
US6189464A · kind A · utility
10Cited by
9References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 28, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Jan 28, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2201/101
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A combustion method utilizing a pulverized coal combustion burner which is provided with a pulverized coal nozzle for jetting a fluid mixture of pulverized coal and air and an air nozzle for jetting air. In the method, a combustion flame formed by the pulverized coal combustion burner forms a first zone of a gas phase air ratio of one or less at a radially central portion of the flame and a second zone of a gas phase air ratio of more than one outside of the first zone adjacent the coal nozzle, and a third zone of a gas phase air ratio of one or less at a downstream side from said first and second zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.