Method of preparing ignition fuel pursuant to flow dynamics from a primary fuel flow for a pulverized fuel pilot light
US4426938A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Feb 12, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K3/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of igniting a pulverized-coal annular burner flame having an internal back flow region, with the ignition energy being introduced centrally into the interior of the back flow region of the pulverized-coal annular burner flame. The ignition energy for the annular burner flame is furnished by an ignited pulverized-fuel igniting flame or pilot light, which is operated with pulverized fuel having a different coarseness and/or consistency than does the primary fuel. Pulverous ignition fuel is withdrawn from the conduit of the primary fuel stream after an existing pulverizing plant at a location which is advantageous with regard to flow dynamics. The ignition fuel is withdrawn by means of a withdrawal device which is capable of being shut off, with the withdrawal opening thereof being directed in the direction of the primary fuel flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.