Nozzle for feeding combustion media into a furnace
US11608981B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2021 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Nov 6, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2201/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a nozzle for feeding a combustible medium such as coal particles along with air into a furnace, the exit end of each splitter plate in the nozzle is reinforced by a stiffener having an external cross-sectional shape in the form of a continuous curve proceeding outward and forward from a first surface of the plate to a first location, inward from the first location to a second location beyond the level of an opposite second surface of the plate, and inward and rearward from the second location to the second surface. The stiffener can be hollow, and can also be provided with openings for the flow of cooling air from the interior to the exterior of the stiffener. The continuous curvature of the exterior of the stiffener avoids recirculating flow at locations adjacent the stiffener and thereby minimizes flame attachment and deposition of ash or fuel sediment onto the reinforced splitter plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.