Device and methodology for improved mixing of liquids and solids
US7311270B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Apr 29, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2215/044
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An eductor for mixing liquids and solid particles includes a nozzle, an initial mixing chamber, a first diffuser, an intermediate mixing chamber and a second diffuser. The nozzle includes a semicircular nozzle outlet that is offset from a centrally-located first axis. Motive flow is accelerated through the nozzle through a first and second acceleration segment. Solid particles are added to the motive flow in the initial mixing chamber and directed to the first diffuser. Each diffuser includes an acceleration and a deceleration segment separated by an elliptically-shaped throat. The intermediate mixing chamber is located between the first and second diffusers. A method for mixing liquids and solids includes introducing a motive flow into an initial mixing chamber, creating a vacuum in the initial mixing chamber to induce solids into the motive fluid, providing a region of turbulence to enhance mixing of the motive flow and solid particles, and diffusing the motive flow to further increase boundary flow separation conducive to mixing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.