EG25611A - Stirring device for activated sludges - Google Patents

Stirring device for activated sludges

Info

Publication number
EG25611A
EG25611A EG2010020204A EG2010020204A EG25611A EG 25611 A EG25611 A EG 25611A EG 2010020204 A EG2010020204 A EG 2010020204A EG 2010020204 A EG2010020204 A EG 2010020204A EG 25611 A EG25611 A EG 25611A
Authority
EG
Egypt
Prior art keywords
stirring body
stirring
flow
circumferential boundary
transport ribs
Prior art date
Application number
EG2010020204A
Inventor
Marcus Hofken
Original Assignee
Invent Umwelt & Verfahrenstech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39926580&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EG25611(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Invent Umwelt & Verfahrenstech filed Critical Invent Umwelt & Verfahrenstech
Application granted granted Critical
Publication of EG25611A publication Critical patent/EG25611A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/117Stirrers provided with conical-shaped elements, e.g. funnel-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/111Centrifugal stirrers, i.e. stirrers with radial outlets; Stirrers of the turbine type, e.g. with means to guide the flow

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention relates to a stirring device for activated sludges comprising a hyperboloid stirring body (1) attached to a shaft (2), wherein a plurality of transport ribs (3) are provided on the top (O) of the stirring body (1) running toward the circumferential boundary (UM) thereof, wherein the transport ribs (3) have an oblique course, at least in sections, relative to a radial direction, and wherein the oblique position of the transport ribs (3) is selected such that, when the stirring body (1) rotates in a predetermined rotational direction (R), a flow (S) is generated that is directed outward away from the circumferential boundary (UM) of the stirring body (1). In order to improve the efficiency of the stirring device, the invention proposes that a flow guidance device (7) for guiding the flow (S) generated by the stirring body (1) be provided in a plane running substantially perpendicular to the shaft (2), said flow guidance device surrounding the circumferential boundary (UM) of the stirring body (1) and being relatively fixed thereto.
EG2010020204A 2007-08-09 2010-02-08 Stirring device for activated sludges EG25611A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007037585 2007-08-09
PCT/EP2008/005923 WO2009018915A1 (en) 2007-08-09 2008-07-18 Stirring device for activated sludges

Publications (1)

Publication Number Publication Date
EG25611A true EG25611A (en) 2012-03-20

Family

ID=39926580

Family Applications (1)

Application Number Title Priority Date Filing Date
EG2010020204A EG25611A (en) 2007-08-09 2010-02-08 Stirring device for activated sludges

Country Status (13)

Country Link
US (1) US20100196165A1 (en)
EP (1) EP2175973B1 (en)
JP (1) JP5307812B2 (en)
CN (1) CN101778665B (en)
AT (1) ATE510613T1 (en)
BR (1) BRPI0814951B1 (en)
DK (1) DK2175973T3 (en)
EG (1) EG25611A (en)
ES (1) ES2366873T3 (en)
IL (1) IL203596A (en)
PL (1) PL2175973T3 (en)
WO (1) WO2009018915A1 (en)
ZA (1) ZA201000605B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007037586B3 (en) * 2007-08-09 2008-09-18 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for activated sludge
IT1403045B1 (en) * 2010-04-14 2013-09-27 Formest Srl SUBMERSIBLE AERATOR
DE102013225662A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for circulating wastewater and equipment received in a basin
DE102013225659A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Device for circulating a liquid received in a container
DE102013225658A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Agitator and stirrer for generating a flow in a waste water treatment tank
US10173184B2 (en) * 2015-03-25 2019-01-08 Schlumberger Technology Corporation Blender for mixing and pumping solids and fluids and method of use thereof
DE102018119039A1 (en) * 2018-08-06 2020-02-06 Invent Umwelt-Und Verfahrenstechnik Ag Immersion mixer for circulating drinking water
CN109110921A (en) * 2018-10-09 2019-01-01 浙江海拓环境技术有限公司 A kind of waste water denitrification denitrogenation reactor
CN110207219B (en) * 2018-10-18 2024-10-01 华帝股份有限公司 Flow guiding device, fan system applying same and range hood
DE102019101416B4 (en) * 2018-12-03 2020-07-16 Invent Umwelt- Und Verfahrenstechnik Ag Hyperboloid stirring body for circulating liquids as well as stirring and gassing equipment

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US3820759A (en) * 1972-06-05 1974-06-28 Hege Avanced Syst Corp Centrifugal mixing apparatus and method
US3917763A (en) * 1972-09-05 1975-11-04 Werner Frank D Aerator
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DE3603466A1 (en) * 1985-05-31 1987-08-06 Franz Dr Ing Nestmann Apparatus for introducing gas into and circulating liquids in tanks
DE4218027A1 (en) * 1991-05-30 1992-12-03 Marcus Dipl Ing Hoefken Fluid agitation and aeration - has hyperboloid agitator body which separates actions for min. energy consumption
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DE9316251U1 (en) * 1993-10-25 1994-02-10 Charatjan, Manuela, 76332 Bad Herrenalb Device for stirring or for stirring and simultaneously gassing liquids, suspensions and heterogeneous fluids
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DE10221824C1 (en) * 2002-05-10 2003-09-11 Schulz Verfahrenstechnik Gmbh Turbulent hydrodynamic mixer for solid - liquid systems in wastewater treatment, employs rotor on vertical shaft, whirlpool breaker and bed of fluidization spheres
DE20207376U1 (en) * 2002-05-10 2003-06-26 Invent Umwelt Und Verfahrenste Stirring and gassing device for activated sludge
JP2004188259A (en) * 2002-12-09 2004-07-08 Tsurumi Mfg Co Ltd Underwater aeration apparatus
JP4104965B2 (en) * 2002-12-09 2008-06-18 株式会社鶴見製作所 Underwater aeration equipment
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JP2006061780A (en) * 2004-08-25 2006-03-09 Kobelco Eco-Solutions Co Ltd Aerator and defoaming method in the aerator
JP2006255514A (en) * 2005-03-15 2006-09-28 Kobelco Eco-Solutions Co Ltd Apparatus and method for treating organic waste water
DE102005016948B3 (en) * 2005-04-12 2007-01-04 Invent Umwelt-Und Verfahrenstechnik Ag Stirring device and process for wastewater treatment
JP2007090218A (en) * 2005-09-28 2007-04-12 Kobelco Eco-Solutions Co Ltd Organic waste water treatment method and organic waste water treatment equipment
USD665047S1 (en) * 2010-02-11 2012-08-07 Invent Umwelt-Und Verfahrenstechnik Ag Stirring body

Also Published As

Publication number Publication date
BRPI0814951B1 (en) 2018-11-06
EP2175973A1 (en) 2010-04-21
US20100196165A1 (en) 2010-08-05
ES2366873T3 (en) 2011-10-26
CN101778665B (en) 2013-01-16
EP2175973B1 (en) 2011-05-25
WO2009018915A1 (en) 2009-02-12
ATE510613T1 (en) 2011-06-15
BRPI0814951A2 (en) 2015-01-27
DK2175973T3 (en) 2011-08-29
JP2010535610A (en) 2010-11-25
PL2175973T3 (en) 2011-10-31
IL203596A (en) 2013-01-31
CN101778665A (en) 2010-07-14
ZA201000605B (en) 2010-09-29
JP5307812B2 (en) 2013-10-02

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