Global Patent Index - EP 1594598 B1

EP 1594598 B1 20071031 - DEVICE FOR STIRRING A LIQUID AND INJECTING A GAS INTO SAID LIQUID WITH LIMITED CLOGGING

Title (en)

DEVICE FOR STIRRING A LIQUID AND INJECTING A GAS INTO SAID LIQUID WITH LIMITED CLOGGING

Title (de)

VORRICHTUNG ZUM RÜHREN EINER FLÜSSIGKEIT UND ZUM EINSPRITZEN EINES GASES IN DIESE FLÜSSIGKEIT MIT EINER BESCHRÄNKTEN SPERRUNG

Title (fr)

DISPOSITIF D'AGITATION D'UN LIQUIDE ET D'INJECTION D'UN GAZ DANS CE LIQUIDE A ENGORGEMENT LIMITE

Publication

EP 1594598 B1 20071031 (FR)

Application

EP 03799707 A 20031204

Priority

  • FR 0350151 W 20031204
  • FR 0215733 A 20021212

Abstract (en)

[origin: FR2848472A1] The surface of a lower disk of a turbine is lower than the surface of an upper disk. The lower disk has a smaller diameter than the upper disk and a diameter which is greater than or equal to the diameter of an annular space. A device for agitating a liquid in a reactor and injection of a gas into a liquid has a driving device above a receiver, with a vertical output axle with at least one movable device with axis flow immersed in the liquid, and a self-drawing turbine immersed in the reactor which can be driven by the output shaft. The output shaft is enclosed by a coaxial cylinder the lower end of which opens in the turbine and the upper end of which is connected in a sealed manner to the driving device. The cylinder is pierced with a hole for injecting gas in an annular space between the shaft and the cylinder. The turbine is made of two superimposed disks and an assembly of radial blades placed between the disks and fixed to them. The upper disk is pierced with a central hole into which fits the bottom end of the cylinder to describe an annular space between the cylinder and the edge of the hole by which liquid is drawn into the turbine. The gas-liquid dispersion expelled radially by the turbine is directed towards the axial flow device. The lower disk is at least partly hollow in the form of a ring. The axial flow moving device is a helix. An annular casing forms a deflector to send the gas- liquid dispersion ejected radially by the turbine to the axial flow moving device, pierced with two opposing central holes coaxial with the shaft. No additional agitator is placed on the output shaft below the axial flow device.

IPC 8 full level

B01F 27/91 (2022.01)

CPC (source: EP US)

B01F 23/23342 (2022.01 - EP US); B01F 27/192 (2022.01 - EP US); B01F 27/111 (2022.01 - EP US); B01F 27/113 (2022.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

US 2006151897 A1 20060713; US 7431272 B2 20081007; AT E376875 T1 20071115; AU 2003299411 A1 20040709; AU 2003299411 B2 20090129; BR 0317264 A 20060117; BR 0317264 B1 20101130; CA 2508429 A1 20040701; CA 2508429 C 20110510; CN 100344355 C 20071024; CN 1729045 A 20060201; DE 60317241 D1 20071213; DE 60317241 T2 20080814; DK 1594598 T3 20080211; EP 1594598 A1 20051116; EP 1594598 B1 20071031; ES 2295689 T3 20080416; FR 2848472 A1 20040618; FR 2848472 B1 20050218; JP 2006509625 A 20060323; JP 4373336 B2 20091125; PT 1594598 E 20080124; WO 2004054694 A1 20040701

DOCDB simple family (application)

US 53870605 A 20051121; AT 03799707 T 20031204; AU 2003299411 A 20031204; BR 0317264 A 20031204; CA 2508429 A 20031204; CN 200380105973 A 20031204; DE 60317241 T 20031204; DK 03799707 T 20031204; EP 03799707 A 20031204; ES 03799707 T 20031204; FR 0215733 A 20021212; FR 0350151 W 20031204; JP 2004559841 A 20031204; PT 03799707 T 20031204