System for the sampling in an enclosure of solid particles in a fluidized bed
US4854180A · kind A · utility
8Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Oct 21, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J8/0025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a sampling method and apparatus for a fluidized bed of particles in an enclosure, comprising a sampling riser pipe (4) that communicates with the enclosure (1) below the upper surface of the fluidized bed and forms an extension thereof and has a restriction (5) adapted to limit the sampling flow rate, and means (14, 15) provided for injecting a compressed gas at an adjustable flow rate into the pipe (4) between the enclosure (1) and the restriction (5) with a view to controlling, by appropriate regulation of the flow rate of the gas, the quantity of particles withdrawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.