Operating method of fluidized-bed incinerator and the incinerator
US6418866B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Apr 25, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G2209/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The objective of the present invention is to provide a fluidized bed incinerator which will increase the thermal capacity of the freeboard to respond to fluctuations of the load imposed by waste matter such as sludge or garbage with a high moisture content; which would absorb local and momentary temperature spikes due to load fluctuations or variations in the characteristics of the waste material. This invention comprises the steps of 1) injecting the primary air for fluidizing the fluidizing medium from a bottom of the fluidizing region; 2) injecting the secondary air into the splash region in which the bubbles on the surface of the fluidized sand blast and the particles are propelling upward when the bubbles are burst; 3) entraining and conveying upward the fluidizing medium to out of said incinerator via the freeboard; 3) recirculating the fluidizing medium to the fluidizing region; and 4) controlling the thermal capacity of the freeboard, and the temperature of the fluidizing medium to be constant by controlling the ration of the primary and secondary air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.