Method and apparatus for drying the fuel of a fluidizied-bed boiler
US5419267A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | May 26, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G2209/26
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present publication discloses a method and an apparatus for drying the fuel used for firing a fluidized-bed boiler (1). The hot, inert solids of the fluidized bed are circulated by a regulated rate from the furnace (2) to a simple dryer (11) incorporated into the fuel feed line (7) to the boiler (1), whereby the fuel is dried and steam is generated. By virtue of controlled bed solids recirculation, a constant temperature of the dryer (11) can be maintained, thus permitting the omission of all heat transfer surfaces from the dryer (11). The nearly clean steam released from the drying process is routed from the dryer (11) to useful applications. (FIG. 1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.