Method and apparatus for treatment of waste
US6619214B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jul 30, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G2203/8013
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus for treating waste material that comprises four major cooperating subsystems, namely a pyrolytic converter, a two-stage thermal oxidizer, a steam generator and a steam turbine driven by steam generated by the steam generator. In operation, the pyrolytic converter is uniquely heated without any flame impinging on the reactor component and the waste material to be pyrolyzed is transported through the reaction chamber of the pyrolytic converter by a pair of longitudinally extending, side-by-side material transfer mechanisms. Each of the transfer mechanisms includes a first screw conveyor section made up of a plurality of helical flights for conveying the heavier waste and a second paddle conveyor section interconnected with the first section for conveying the partially pyrolyzed waste, the second section comprising a plurality of paddle flights. Once operating, the apparatus is substantially self-sustaining and requires a minimum use of outside energy sources for pyrolyzing the waste materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.