EP 3251739 A1 20171206 - STIRRING IMPELLER AND STIRRING DEVICE
Title (en)
STIRRING IMPELLER AND STIRRING DEVICE
Title (de)
RÜHRLAUFRAD UND RÜHRVORRICHTUNG
Title (fr)
TURBINE DE BRASSAGE ET DISPOSITIF DE BRASSAGE
Publication
Application
Priority
EP 16172082 A 20160531
Abstract (en)
An object of the present invention is to provide a stirring impeller and a stirring device capable of reducing power required for stirring. Provided are an axial stirring impeller 1 including a plurality of blades 3 arranged at intervals in a rotational direction with reference to the central axis of rotation, and a stirring device including the stirring impeller 1. Each of the plurality of blades 3 has a front portion with reference to at least the rotational direction R inclined to a plane orthogonal to the central axis of rotation in a cross section in the rotational direction R at an angle ¸1 of 20° to 40° toward a front end edge 3a, and each of the plurality of blades 3 includes a tapered portion 31 tapered to have a tip angle of 30° to 50° in the cross section in the rotational direction R, on the front end edge 3a with reference to the rotational direction R.
IPC 8 full level
B01F 7/00 (2006.01)
CPC (source: EP)
B01F 27/112 (2022.01); B01F 27/113 (2022.01); B01F 2215/0422 (2013.01)
Citation (applicant)
JP H10337461 A 19981222 - UBE INDUSTRIES
Citation (search report)
- [XI] WO 9111620 A1 19910808 - CHEMINEER [US]
- [I] WO 2007093668 A1 20070823 - OUTOTEC OYJ [FI], et al
- [A] US 1838453 A 19311229 - WILLIAM ROSEN
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 16172082 A 20160531