Method for cooling of dust separated from the flue gases from a PFBC plant
US5297622A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1992 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Oct 20, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D2021/0045
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method is provided for cooling of particulate material from a combustion plant, especially intended for cooling of fine-grained dust which has been separated from the flue gases from a PFBC power plant, and in which the material is transported pneumatically with the flue gas as transport means. A cooler is provided at the inlet of which there is a space for separation of the particulate material from the transport gas. The transport gas is removed via a gas cleaner. The particulate material is collected in a duct where it forms a particulate column. The duct includes cooling modules, suitably water-cooled, which cool the material on its way down through the duct. The duct comprises devices for the supply of a gas for stirring the material in the duct while the remaining flue gas is being separated from the particulate column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.