Apparatus and method for dosing
US5538162A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 1994 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | May 25, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00761
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dosing apparatus provides for dosing a particulate phase within a free flowing two phase flow of a gas phase and the particulate phase, wherein the two phase flow leaves a fluidized bed. The apparatus includes, at its bottom, a gas inlet mechanism to supply the gas via an orifice, and an outlet orifice with a discharge pipe. Control of the gas flow to maintain a predetermined level of the bed is attained by weighing the contents of the bed or by use of sensors within a treatment space of the apparatus. Widening mechanism may be located subsequent to the outlet orifice for widening the stream of particulate phase for exposing an enlarged surface area of particles for treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.