EP 1968749 A1 20080917 - SCREW-TYPE SOLID BOWL CENTRIFUGE
Title (en)
SCREW-TYPE SOLID BOWL CENTRIFUGE
Title (de)
VOLLMANTEL-SCHNECKENZENTRIFUGE
Title (fr)
CENTRIFUGEUSE A VIS SANS FIN A BOL PLEIN
Publication
Application
Priority
- EP 2006069718 W 20061214
- DE 102005061461 A 20051222
Abstract (en)
[origin: DE102005061461A1] A solid bowl-helical conveyor centrifuge for directly separating oil from solid or water mixture, exhibits a rotatable drum (35) with a tapering cylindrical area, and a rotatable helical conveyor with a conveyor body (3) surrounded by a main conveyor sheet (5). Helical threads form the conveyor body. A conveyor strip is arranged between the helical threads for conveying centrifuged material to be processed. Additional sheet segments are arranged in the conveyor strip, which is segmented between the adjacent helical threads. The solid bowl-helical conveyor centrifuge for directly separating oil from solid or water mixture, exhibits a rotatable drum (35) with a tapering cylindrical area, and a rotatable helical conveyor with a conveyor body (3) surrounded by a main conveyor sheet (5). Helical threads form the conveyor body. A conveyor strip is arranged between the helical threads for conveying centrifuged material to be processed. Additional sheet segments are arranged in the conveyor strip, which is segmented between the adjacent helical threads. The conveyor sheet is arranged in the area of the sheet segments with cavities in such a manner that the centrifuged material flows between the sheet segments. Two helical threads of the sheet segments are arranged in the conveyor strip. A part of the sheet segments in a first helical thread is arranged towards the tapered segments turned forwardly relative to the main helical conveyor sheet. Further parts of the sheet segments are arranged parallel to the main helical conveyor sheet. An auxiliary conveyor sheet in the helical thread is arranged in the tapered area of the conveyor and covers the total tapered area of the conveyor. The sheet segments in the helical threads lying near to the fluid discharge, are arranged parallel to the main conveyor sheet. The cavities of external circumference of the main conveyor sheet inwardly extend itself in window like manner and covers only two helical threads. A stump area of the main conveyor sheet remains stand at the conveyor body. The sheet segments are radially formed less highly than the remaining main conveyor sheet. A barrier device in the helical thread is arranged between the cylindrical section and the conical section and is formed out of barrier sheet metals that close the helical thread transverse to the conveyor blade up to a given radius. Two dividers axially with one another are shifted towards the helical axis A and are arranged in the helical body with first and second inlet openings (17, 19). The helical conveyor shows a changeable inlet tube (15). The first or the second inlet openings are useful for a two-phase separation and a three-phase separation of the oil by the axial length of the interchangeable inlet tube. The second auxiliary conveyor sheet in the conveyor strip is arranged in the area of the first divider over a limited axial area that is larger or same axial length of its inlet opening. The auxiliary conveyor sheet shows a slight radial extension than the first conveyor sheet. The second auxiliary conveyor sheet shows radial height of oil phase, which is easily collected in the operation interior. The auxiliary conveyor sheet of the conveyor strip detaches an auxiliary path, which is narrower than the main path and which lies on the back side of the main conveyor sheet relative to the conical section.
IPC 8 full level
B04B 1/20 (2006.01)
CPC (source: EP US)
B04B 1/20 (2013.01 - EP US); B04B 2001/2033 (2013.01 - EP US); B04B 2001/2041 (2013.01 - EP US); B04B 2001/205 (2013.01 - EP US); Y10S 494/901 (2013.01 - EP US)
Citation (search report)
See references of WO 2007074076A1
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)
DE 102005061461 A1 20070705; AR 058115 A1 20080123; AU 2006331435 A1 20070705; AU 2006331435 B2 20110414; AU 2006331435 C1 20120913; CL 2006003689 A1 20080404; EP 1968749 A1 20080917; EP 1968749 B1 20180606; ES 2686314 T3 20181017; PT 1968749 T 20181010; US 2008312060 A1 20081218; US 7549957 B2 20090623; WO 2007074076 A1 20070705
DOCDB simple family (application)
DE 102005061461 A 20051222; AR P060105606 A 20061219; AU 2006331435 A 20061214; CL 2006003689 A 20061222; EP 06841363 A 20061214; EP 2006069718 W 20061214; ES 06841363 T 20061214; PT 06841363 T 20061214; US 15863406 A 20061214