Process and apparatus for the mixing of slurries
US4630931A · kind A · utility
2Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1985 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Feb 25, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F33/40511
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of and apparatus for the mixing of a slurry in a tank having a conical bottom along the axis of the tank, and air-lift pipe is provided which is supplied at its lower end with compressed air to induce an upward flow of the slurry and air mixture through the pipe during start up of a mixing operation. Thus an injection is cut off when steady state is reached and air is injected at an upper level in the pipe located in the upper third of the length thereof but below the upper eighth for continuing mixing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.