Feeding apparatus for creation of one or more plugs of compressible material for feeding into a gasifier or reactor
US7964004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Apr 2, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K2203/203
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An energy efficient, very flexible and safe feeding apparatus serves for creation of one or more plugs of compressible material for feeding into a gasifier, reactor or other combustion chamber. This apparatus includes a piston feeder with at least three pistons for pre-compressing and delivering compressible material towards a mouthpiece serving as a non-return valve and having an exit end facing a braking device with a friction member for regulating the final degree of compression of the material, and an opposing inlet end for at least partly compressed material. The inner diameter of at least an inlet section extending from the inlet end of the mouthpiece increases towards the first end, so that an angle between the inner wall of at least the inlet section and the longitudinal axis of the mouthpiece is larger than 0° but less than or equal to 3°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.