Stirring apparatus having blades creating a circulating flow
US5472278A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1994 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Oct 11, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F27/1125
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A stirring apparatus includes a container with a rotary stirring shaft therein. On the opposite sides of the rotary stirring shaft are mounted an upper vertical flat blade and first inclined flat blades opposite to each other. A first vertical flat blade has a sweptback blade associated therewith, and is mounted to the stirring shaft at a position under the first inclined flat blades, and a second inclined flat blade or blades and a second vertical flat blade having an associated sweptback blade are mounted to the stirring shaft at a position under the upper vertical flat blade. When the stirring shaft rotates, ascending flows of liquid to be processed along the inner wall within a vessel are generated by the upper vertical flat blade and the first and second vertical flat blades that are each associated with a sweptback blade. Descending flows of the liquid to be processed are generated by the inclined flat blades, thereby enhancing the mixing performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.