Process and apparatus for breaking up foam into its liquid and gaseous components
US5143525A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Jun 24, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D19/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process of breaking up a foam into a liquid component and a gaseous component by action of centrifugal forces, includes drawing the foam axially into a centrifugal fan device by suction; then, accelerating the foam radially by centrifugal forces over a plurality of ribs and/or baffles, forcing the liquid component through a peripheral liquid discharge outlet; feeding the gaseous component through at least one gas outlet prior to forcing the liquid component through the liquid discharge outlet; advantageously feeding the gaseous component in a radial direction opposite to that in which the foam flows in the fan device, and after that, conducting the gaseous component axially through a gas outlet. The apparatus for performing the process includes a centrifugal fan acting as a pump impeller having an upper plate and a lower plate connected by a plurality of ribs and a conical cutoff cover located above the centrifugal fan acting to guide gas component flow, an axially-located foam inlet, a gas component outlet located above the cutoff cover near the rotation axis of the fan and a liquid discharge outlet formed between the cutoff cover and the lower plate at the periphery of the cent…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.