公开(公告)号：EP2564395A1

公开(公告)日：2013-03-06

申请号：EP11775381.4

申请日：2011-04-28

申请人： Frigeo AB

发明人： ROSTMARK, Mats-Johan ,  MAKSIMAINEN, Erik ,  ROSTMARK, Susanne

IPC分类号： G21F9/06 ,  B01D21/24 ,  C02F11/20 ,  G21F9/20

CPC分类号： C02F11/20 ,  B01D21/009 ,  B01D21/245 ,  C02F2101/006 ,  G21F9/06 ,  G21F9/20 ,  G21F9/30 ,  G21F9/304

摘要： A method for handling sludge arranged on the bottom (2) of a water filled basin (1), wherein the water defining a surface, is described. The method comprises the steps of freezing the sludge in a portion of the bottom (2) of the basin (1), arranging a closable container (3) in the basin (1) below the surface of the water, which container (3) comprises a collecting filter, moving the frozen sludge into the container (3) to a position above the collecting filter, closing the container (3), and thawing the frozen sludge in the container (3). An apparatus for performing the method is also described.

公开(公告)号：EP2564395A4

公开(公告)日：2015-02-11

申请号：EP11775381

申请日：2011-04-28

申请人： FRIGEO AB

发明人： ROSTMARK MATS-JOHAN ,  MAKSIMAINEN ERIK ,  ROSTMARK SUSANNE

IPC分类号： G21F9/06 ,  B01D21/24 ,  C02F11/20 ,  G21F9/20

CPC分类号： C02F11/20 ,  B01D21/009 ,  B01D21/245 ,  C02F2101/006 ,  G21F9/06 ,  G21F9/20 ,  G21F9/30 ,  G21F9/304

公开(公告)号：EP1861549A4

公开(公告)日：2012-05-09

申请号：EP06717015

申请日：2006-03-15

申请人： FRIGEO AB

发明人： ROSTMARK SUSANNE ,  MAKSIMAINEN ERIK ,  GUNNARSSON STEFAN

IPC分类号： E02F5/28 ,  B09B1/00 ,  E02D3/115 ,  E02F3/00 ,  E02F5/00 ,  E21C45/00

CPC分类号： E02F5/006 ,  E02D3/115 ,  E02F5/28

公开(公告)号：EP1861549A1

公开(公告)日：2007-12-05

申请号：EP06717015.9

申请日：2006-03-15

申请人： Frigeo AB

发明人： ROSTMARK, Susanne ,  MAKSIMAINEN, Erik ,  GUNNARSSON, Stefan

IPC分类号： E02F5/28 ,  E02D3/115 ,  E02F3/00 ,  E02F5/00

CPC分类号： E02F5/006 ,  E02D3/115 ,  E02F5/28

摘要： 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.