Fluidized bed apparatus for making and/or processing pourable material
US5145650A · kind A · utility
Inventor
Key dates
| Filing date | Nov 8, 1990 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Nov 8, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/1818
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a treatment chamber (12) having a gas inlet (16) and gas outlet (18) to produce a general flow of gas (E) directed from the bottom to the top a hollow lance (40) extends transversely of the general flow of gas (E) between two pairs of guide vanes (42,44). The outline of the lance (40) is symmetrical with respect to a vertical center plane (A), and it includes a conveyor channel (60) which extends in longitudinal direction of the lance and to which discharge nozzles (80) for material are connected. A pair of semishells (52) are arranged above the guide vanes (42,44) and, together with the guide vanes (42,44), they form a straight trough (53) which is at least approximately symmetrical with respect to the center plane (A). A pressure gradient can be produced between the gas inlet (16) and the gas outlet (18) at which gradient a rectilinear fluidized bed (F) is formed within the trough (53).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.