Agitator and baffles for slurry mixing
US4951262A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1989 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Apr 18, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F27/9021
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for mixing a fluid includes a mixing tub having a substantially circular horizontal cross-sectional shape, and an agitator assembly associated with the mixing tub. The agitator assembly includes a drive shaft having upper and lower agitators attached thereto. The drive shaft is located within the tub and has a substantially vertically oriented axis of rotation. The lower agitator moves fluid generally downward through a radially inner cross-sectional area defined within a first radius swept by the lower agitator. The upper agitator moves fluid within the first radius generally radially outward as that fluid is moved generally downward by the lower agitator, and moves fluid outside the first radius generally upward. A plurality of foraminous baffles are mounted within the tub for reducing rotational motion of the slurry within the tub about the generally vertical axis of the agitator shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.