Sludge condensation and dewatering system
US4358381A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1980 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Dec 24, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B9/246
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sludge condensation and dewatering apparatus is described which comprises a condensation unit and a dewatering unit. The condensation unit comprises a flocculating reaction tank (1) for forming a sludge flock, a first holding tank (2) slantingly arranged and upwardly inclined along the moving direction of the sludge, a conveyor for conveying the sludge flock from the flocculation tank to the holding tank for retaining the sludge flock produced by the flocculation reaction tank and an endless running screen belt (3) located just below and adjacent to the first holding tank, a dewatering unit, a solidification device (13) in communication with the first holding tank located between the condensation unit and the dewatering unit. The dewatering unit comprises an upper running piled filter cloth (4) and a lower running piled filter cloth (5), a plurality of rolls (R.sub.1 -R.sub.18) for tensioning the upper and lower filter cloths and for moving them closer to each other so as to dewater, between the two filter cloths, the condensed sludge produced by the condensation unit, and then for moving the upper and lower filter cloths apart from each other, and guiding the condensed sludge he…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.