Fluidized waste incinerator and method
US3994244A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1975 |
| Grant date | Nov 30, 1976 |
| Priority date | — |
| Expiry date | Aug 22, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2217/50
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Waste material such as sewage biotreater sludge which is partially combustible and contains a substantial proportion of ash, including easily fusible salts, is incinerated in a fluidized bed incinerator provided with a special quench system which protects against premature plugging of the incinerator vapor withdrawal lines. The quench consists of a refractory-lined metal conduit ending approximately flush with the refractory lining of the incinerator in the upper portion of the incinerator dome, a second conduit at approximately right angles for withdrawal of vapors from the first conduit and quench water injection means adapted to inject quench water into the opening of the second conduit. Optionally, the system may be equipped with means for injecting a small proportion of the quench water into the incinerator vapor space just upstream from the vapor offtake conduit and with means for injecting a small proportion of the quench water against the vapor offtake conduit near its intake end, so as to wet the metal surface of the conduit. In the latter case, a lip is mounted on said intake end so as to distribute the water on the full circumference of the conduit and to keep water from…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.