Coal feed system for a fluidized bed boiler
US4241670A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1979 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Mar 19, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K3/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An individual cell of a fluidized bed includes a static bed disposed immediately below the fluidization region with a coal feed system, which incorporates means for igniting the coal, embedded within the static bed. Coal is fed to the static bed through a coal pipe which extends vertically upward through the bed support plate into said bed and which terminates therein in a coal distributor having a series of openings around its circumference. The coal is swirled as it flows upward through the coal pipe with resultant centrifugal force imparted to the coal ensuring that the coal will be propelled out of the openings in the distributor head and evenly distributed over the cell area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.