Apparatus for thickening and extracting the liquid from a sludge
US4062779A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Jul 19, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D37/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for thickening and extracting the liquid from a sludge comprises a sludge-thickening assembly wherein solid matters in the sludge are coagulated to form coagulated flocs and the floc sludge is separated and thickened, and an assembly for extracting liquid from said floc sludge under pressure to obtain a dehydrated cake. The sludge-thickening assembly comprises coagulation means for the sludge, a first and a second screen rolls having a reticulate material covering the outer surface; and the assembly for extracting the liquid comprises an endless moving flocked filter belt, means for supporting the belt, a cylinder forced to closely contact with an upper portion of said endless moving flocked filter belt, and at least one press roll urging said endless moving flocked filter belt against said cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.