Method for controlling temperatures in the afterburner and combustion hearths of a multiple hearth furnace
US4453474A · kind A · utility
14Cited by
11References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Sep 24, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G2207/30
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention relates to a method for efficiently incinerating waste material, particularly dewatered sludge, in a multiple hearth furnace by controlling the temperature of the individual hearths of the furnace within certain prescribed limits by modulating the amount of combustion air, and controlling the temperature of the afterburner or combustion hearths to within certain prescribed limits by splitting the feed sludge between the first two upper waste material handling hearths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.