Power plant burning fuel in a fluidized bed
US4796568A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1988 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Mar 22, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C10/16
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A steam-generating plant burning a fuel, primarily coal, in a fluidized bed has the bed vessel divided into a combustion chamber and an ash chamber by an air distributor with nozzles for the supply of air for fluidization of the bed and combustion of the fuel. The air distributor is provided with openings, through which bed material can pass from the fluidized combustion chamber to the non-fluidized ash chamber. Tubes for generating steam are provided in the combustion chamber and tubes for superheating steam are arranged in the ash chamber. The plant is provided with a transport means for conveying bed material back from the ash chamber to the combustion chamber. Regulating the quantity of bed material fed back to the combustion chamber also regulates the supply of heat to the superheating tubes and controls the degree of superheating obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.