Burner assembly for coal fired furnaces
US4902221A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 1987 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | May 12, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D1/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A burner assembly (10) for the combustion of pulverized coal in furnaces (12) and the like. The assembly comprises wind box means (23) for providing a primary source of air to the interior (13) of the furnace; feeding means (30) for delivering pulverized coal through a wall (11) of the furnace and into the interior thereof; means for supplying (31) a secondary flow of air through the feeding means and into the furnace separate from the primary flow of air; and swirler means (32) having a plurality of blades around the feeding means so that the first flow moves around and through the blades for imparting a rotation to the primary flow of air to penetrate the pulverized coal funnel. A method for supplying pulverized coal to furnaces and the like through burner assemblies is also provided and results in increased combustion efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.