Treatment of particulate materials
US4815482A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1986 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Dec 4, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B17/101
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Mobilization apparatus for the treatment, drying for example, of particulate material comprises a mobilization zone bounded by upwardly divergent walls. Particulate material in the zone is mobilized by being subjected to a flow of gaseous mobilizing medium supplied at a multiplicity of sites of the divergent walls. The material is simultaneously subjected to a flow of gaseous accelerating medium supplied in an upward direction from a lower region of the mobilization zone. The obtains in the mobilization zone of circulatory pattern comprising downward flow at the divergent walls and upward flow from a lower region of the zone. In order to discharge the particulate material from the apparatus, a mask extending outwardly from the lower end of an upwardly extending discharge duct is brought to the upper end of the mobilization zone. The result is that the circulatory pattern is destroyed and the material is pneumatically transported up the discharge duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.