Method for improving belt press dewatering
US7964105B2 · kind B2 · utility
17Cited by
124References
4Claims
0Family size
Inventor
Key dates
| Filing date | Aug 7, 2008 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D33/646
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for increasing the removal of a higher fraction of liquid from the press cake in any belt press is described. Specifically, the invention incorporates a series of rollers that create multiple pinch points to compress the solid fraction while removing liquid. After each pinch point, the solid material is allowed to separate from the belt, fall by gravity, and repack so that more liquid can be released at each successive pinch point than is possible if the material is fed to multiple rollers and pinch points in series without decompressing as is done is prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.