Horizontal belt vacuum filtration apparatus
US5019258A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | May 24, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D33/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a vacuum belt filter, in order to allow for additional washing of filter cake, a plate is mounted in an inclined disposition above the upper run of the belt with its lower end directed upstream so that as the belt is progressed filter cake moves up over said plate. At the top of the plate, the cake drops into a receptacle and is washed and reslurried by liquid from jets before being returned to the belt downstream, preferably immediately below, the inclined plate. As an alternative to immediate return to the belt, reslurried cake may be transported from the receptacle to a reservoir for further washing or prolonged leaching before it is returned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.