EP 0158048 B1 19901031 - MIXING SYSTEMS
Title (en)
MIXING SYSTEMS
Publication
Application
Priority
US 59910984 A 19840411
Abstract (en)
[origin: EP0158048A2] Mixing systems for liquids having fibers suspended therein wherein the fibers tenaciously adhere to and accumulate on the leading edge of an impeller (30), thereby increasing the drag of the liquid on the impeller (30) as it rotates and the consequent increase in the power required to rotate the impeller (30), is reduced. Axial flow of the liquid in a tank (10) is produced by the impeller (30) within a draft tube (12). The leading edge (38) of the blades (32) of the impeller (30) are inclined with respect to radial lines (60) extending from the axis of rotation (56) of the impeller (30) beyond the angle of repose of the fibers on the leading edge (38). Also, the coefficient of friction of the portion of the impeller (30), extending from the leading edge (38) toward the trailing edge (40) thereof, to which the fibers adhere is reduced by providing the surface thereof with a low coefficient of friction material (50).
IPC 1-7
IPC 8 full level
B01F 7/16 (2006.01); B01F 7/00 (2006.01); B01F 15/00 (2006.01); C02F 3/16 (2006.01)
CPC (source: EP KR)
B01F 27/113 (2022.01 - EP); B01F 27/91 (2022.01 - KR); B01F 33/862 (2022.01 - EP)
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0158048 A2 19851016; EP 0158048 A3 19861008; EP 0158048 B1 19901031; AU 3760685 A 19851017; AU 569364 B2 19880128; CA 1249809 A 19890207; DE 3580294 D1 19901206; GB 2157185 A 19851023; GB 8504508 D0 19850327; JP H0644981 B2 19940615; JP S60227821 A 19851113; KR 850007219 A 19851202; KR 920000538 B1 19920116; NZ 210861 A 19860910; PH 22693 A 19881114; SG 15392 G 19920416
DOCDB simple family (application)
EP 85101696 A 19850215; AU 3760685 A 19850111; CA 473601 A 19850205; DE 3580294 T 19850215; GB 8504508 A 19850221; JP 892985 A 19850121; KR 850001122 A 19850222; NZ 21086185 A 19850117; PH 31886 A 19850220; SG 15392 A 19920218