EP 1861549 A4 20120509 - A METHOD FOR AUTOMATED FREEZE DREDGING
Title (en)
A METHOD FOR AUTOMATED FREEZE DREDGING
Title (de)
VERFAHREN FÜR DAS AUTOMATISCHE GEFRIERAUSBAGGERN
Title (fr)
PROCEDE DE DRAGAGE AUTOMATIQUE PAR CONGELATION
Publication
Application
Priority
- SE 2006000330 W 20060315
- SE 0500582 A 20050315
Abstract (en)
[origin: WO2006098686A1] The invention involves a system (17) and a method (1) for automated freeze dredging of sediment. A set of freeze cells (10) are connected to each other above the surface, preferably on a floating vessel. The freeze cells (10) are submerged to the bottom (12) by means of a conveyor like means (16) where the upper layer of the sediment is frozen such that sections of sediment adhere to the underside of the freeze cells (10). The invention is particular useful to lift up sediment comprising particles that are toxic or otherwise hazardous. The invention is also suitable to be used for crime scene investigation purposes. The invention enables that frozen sediment is transported to the surface without particles flowing out to the surrounding water during transportation of the sediment. Further the invention enables that less sediment needs to be processed in order to reduce the amount of water compared to methods involving traditional dredging.
IPC 8 full level
E02F 5/28 (2006.01); B09B 1/00 (2006.01); E02D 3/115 (2006.01); E02F 3/00 (2006.01); E02F 5/00 (2006.01); E21C 45/00 (2006.01)
CPC (source: EP)
E02D 3/115 (2013.01); E02F 5/006 (2013.01); E02F 5/28 (2013.01)
Citation (search report)
- [X] DE 3223219 A1 19831222 - STROBEL CHRISTIAN
- [A] US 3955294 A 19760511 - MORGENSTEIN MAURICE E
- See references of WO 2006098686A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006098686 A1 20060921; EP 1861549 A1 20071205; EP 1861549 A4 20120509; SE 0500582 L 20060916; SE 529323 C2 20070703
DOCDB simple family (application)
SE 2006000330 W 20060315; EP 06717015 A 20060315; SE 0500582 A 20050315