Fluidized-bed heat generator with improved means for ash removal and heat recovery
US4736711A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 10, 1986 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Dec 10, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B31/0053
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A fluidized bed heat generator with improved collector for ash removal and heat recovery comprises a central hearth having a fluidization grid at its lower end. The side wall of the hearth is enclosed by a hollow peripheral enclosure to define an intermediate volume therebetween which is connected both to the upper part of the hearth and to fume tubes. These fume tubes extend through the peripheral enclosure and open into a fume exit conduit such that fumes and entrained ash from the hearth can be directed via the intermediate volume and the fume tubes to the fume exit conduit. Water is arranged to circulate within the peripheral enclosure around the hearth and fume tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.