EP0775017B1 - Agitateur - Google Patents

Agitateur Download PDF

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Publication number
EP0775017B1
EP0775017B1 EP95928406A EP95928406A EP0775017B1 EP 0775017 B1 EP0775017 B1 EP 0775017B1 EP 95928406 A EP95928406 A EP 95928406A EP 95928406 A EP95928406 A EP 95928406A EP 0775017 B1 EP0775017 B1 EP 0775017B1
Authority
EP
European Patent Office
Prior art keywords
housing
agitator
deflector ring
propeller boss
per
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP95928406A
Other languages
German (de)
English (en)
Other versions
EP0775017A1 (fr
Inventor
Klaus Becker
Manfred Dirla
Wilfried Wasser
Hans-Peter Fassbender
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABS Pump Center GmbH
Original Assignee
ABS Pump Center GmbH
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
Application filed by ABS Pump Center GmbH filed Critical ABS Pump Center GmbH
Publication of EP0775017A1 publication Critical patent/EP0775017A1/fr
Application granted granted Critical
Publication of EP0775017B1 publication Critical patent/EP0775017B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/351—Sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B63H2023/327—Sealings specially adapted for propeller shafts or stern tubes

Definitions

  • the invention relates to an agitator for mixing and / or conveying of aggressive and / or solid or fiber-containing Liquids consisting of a by means of a housing and Seals liquid-tight encapsulated drive motor whose central drive shaft sits a propeller hub, the largest diameter corresponds approximately to the housing diameter, the gap between the propeller hub and Housing covering elastic deflection ring is provided.
  • Generic drives such as those from US-A-5,007,867 or EP-A-0.252.037 are also known as agitators, especially in wastewater technology for mixing of liquids containing solids or fibers in order to for example settling the solids on the bottom of a To prevent tanks or containers.
  • the agitators immersed in the liquid to be mixed and below the Attached to the liquid level.
  • the liquids to be mixed be promoted if a corresponding one in front of the propeller Pipe piece is installed.
  • the largest diameter of which is approximately the diameter of the housing corresponds to flow conditions that are as favorable as possible can be achieved in order to keep the vortex formation relatively low and to achieve an optimal mixing effect with high efficiency.
  • the invention has for its object to an agitator create where penetration of solid or fibrous materials in the gap between the housing and propeller hub on simple Way is prevented or when using a flushing device the required amount of rinsing liquid is minimized.
  • This object is achieved in that the Area of the deflection ring spanning the propeller hub as against the propeller hub is formed around the circumferential tongue or a rotating one against the propeller hub Has sealing lip.
  • the elastic deflector ring is attached to the housing and covered this sealing with a side area during the opposite side area sealing against the propeller hub is applied, so that between the housing and propeller hub existing gap effectively complete in a simple manner is covered. Due to the elastic training is a The gap is also repellent if the Propeller hub has certain tolerances or is eccentric running.
  • the outer peripheral surface of the deflector ring is preferred Wing-like or wing-shaped, so that the flow in the area due to the propeller effect the deflection ring is accelerated towards the propeller and in this way fibers or solid particles from the gap or deflecting ring area are torn away. Hence, these Components are no longer drawn into the gap, even if the area of the deflector ring covering the propeller hub is worn and no longer on the peripheral surface of the Propeller hub rests.
  • the wing-like design of the Deflector ring an undisturbed turbulence-free streamline ensures the liquid so that it is in the rear Area of the deflection ring free of backflow and thus can replace with little loss. Due to the undisturbed, low turbulence The outflow is the energy consumption of the agitator at the same Mixing performance reduced.
  • a good sealing effect of the deflector ring is also achieved if the area spanning the propeller hub as circumferential, comparatively thin lip is formed, the with its underside on the peripheral surface of the propeller hub is present.
  • This lip can also be an inward, linear, circumferential, additionally trained Have lip.
  • the flushing devices already mentioned are provided they can be easily combined with the deflector ring will.
  • Flushing fluid minimizes flushing fluid loss, so that the installed pumps or storage containers for the rinsing liquid can be designed much smaller.
  • the deflector ring preferably consists of an acid and alkali resistant elastomeric material, in particular of acrylic nitrile butadiene or fluorine rubber, so that aging processes largely avoided and long life is guaranteed.
  • Agitator consists of an approximately circular housing 1 with a head flange 2, which is centered on a drive shaft 3 is reached with an electric motor, not shown, which is liquid-tight in the housing 1, connected is.
  • A serves to seal the drive shaft 3 shaft seal 4 inserted in the head flange 2.
  • the deflector ring is inserted into a groove 10 which in the outer peripheral surface of the head flange 2 is formed is. It overlaps the housing with its right side 11 1 in the head area and lies against the outer wall of the housing, while its left side 12 the outer peripheral surface of the Propeller hub 5 overlaps.
  • the left side 12 of the deflection ring 9 carries a tongue 13, the one with an inner sealing surface 14 against the propeller hub 5 is present.
  • the outer peripheral surface 15 of the deflection ring 9 is wing-like arched outwards so that in the area of the left Page 12 or the tongue 13 an acceleration of the flow in the direction of conveyance.
  • the deflection ring 16 also has one Surface 19 curved outward like a wing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Sealing Devices (AREA)
  • Accessories For Mixers (AREA)

Claims (5)

  1. Agitateur destiné au mélange et/ou à l'élévation de liquides agressifs et/ou contenant des matières solides ou des fibres, se composant d'un moteur d'entraínement capsulé de façon étanche aux liquides au moyen d'un carter (1) et de garnitures (4), moteur sur l'arbre d'entraínement (3) central duquel se trouve un moyeu d'hélice (5) dont le diamètre le plus grand correspond à peu près à celui du carter, où au carter (1) est prévu un anneau déflecteur (9) élastique recouvrant l'entrefer (8) entre le moyeu d'hélice (5) et le carter (1), agitateur caractérisé en ce que la partie de l'anneau déflecteur (9, 16) qui recouvre le moyeu d'hélice (5) est réalisée comme langue (17) circulante s'appuyant contre le moyeu d'hélice (5) ou qu'elle présente une lèvre d'étanchéité (18) circulante s'appuyant contre le moyeu d'hélice (5).
  2. Agitateur suivant revendication 1, caractérisé en ce que l'anneau déflecteur (9) est inséré dans une ou plusieurs rainures (10) circulantes pratiquées dans la partie de carter voisine du moyeu d'hélice ou dans une flasque de tête (2) du carter (1).
  3. Agitateur suivant revendication 1 ou 2, caractérisé en ce que la surface périphérique (15, 19) extérieure de l'anneau déflecteur (9, 16) est conçue en forme d'aile.
  4. Agitateur suivant une des revendications 1 à 3, caractérisé en ce que l'anneau déflecteur (9, 16) est utilisé en combinaison avec une installation de lavage.
  5. Agitateur suivant une des revendications 1 à 4, caractérisé en ce que l'anneau déflecteur (9, 16) se compose d'une matière élastomère résistant aux acides et/ou à la lessive, en particulier de caoutchouc nitrile-butadiene acrylique ou au fluor.
EP95928406A 1994-08-12 1995-08-09 Agitateur Expired - Lifetime EP0775017B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4428603A DE4428603A1 (de) 1994-08-12 1994-08-12 Rührwerk
DE4428603 1994-08-12
PCT/DE1995/001042 WO1996004984A1 (fr) 1994-08-12 1995-08-09 Agitateur

Publications (2)

Publication Number Publication Date
EP0775017A1 EP0775017A1 (fr) 1997-05-28
EP0775017B1 true EP0775017B1 (fr) 1998-10-14

Family

ID=6525549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95928406A Expired - Lifetime EP0775017B1 (fr) 1994-08-12 1995-08-09 Agitateur

Country Status (5)

Country Link
US (1) US6123448A (fr)
EP (1) EP0775017B1 (fr)
DE (2) DE4428603A1 (fr)
DK (1) DK0775017T3 (fr)
WO (1) WO1996004984A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003033639A (ja) * 2001-07-25 2003-02-04 Shin Meiwa Ind Co Ltd 水中ミキサ
SE525319C2 (sv) * 2003-06-05 2005-02-01 Volvo Penta Ab Marint propellerdrev
DE202013007839U1 (de) 2013-09-04 2013-10-24 Streisal Gmbh Dichtungssystem für ein Tauchrührwerk
US11877529B2 (en) 2019-02-01 2024-01-23 Cnh Industrial Canada, Ltd. Deflector of an agricultural agitation system
US11484853B2 (en) 2019-02-01 2022-11-01 Cnh Industrial Canada, Ltd. Deflector of an agricultural agitation system
EP3824995A1 (fr) 2019-11-19 2021-05-26 Xylem Europe GmbH Machine submersible présentant une meilleure protection contre l'encrassement
EP4039994A1 (fr) * 2021-02-08 2022-08-10 Goodrich Actuation Systems Limited Joint de palier de butée pour rga à ailes fines et à tranches multiples

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR749945A (fr) * 1933-02-02 1933-08-01 Moyens et dispositifs pour la protection des hélices marines pendant leur rotation
US4021143A (en) * 1975-06-17 1977-05-03 Stone Manganese Marine Limited Marine propeller arrangement
US4722667A (en) * 1986-04-15 1988-02-02 Sea-Land Corporation Rope and fish net guard
SE8602873D0 (sv) * 1986-06-27 1986-06-27 Flygt Ab Tetningsanordning
US4898552A (en) * 1988-10-20 1990-02-06 Edward R. Olesky Outdrive lower unit housing-to-propeller hub bridging sleeve
US4911663A (en) * 1989-03-24 1990-03-27 Outboard Marine Corporation Weed migration reduction system
US5007867A (en) * 1989-05-16 1991-04-16 Zebco Corporation Weed ring for trolling motor
JP3162135B2 (ja) * 1991-10-24 2001-04-25 株式会社パウレック 攪拌造粒装置
DE4401526C1 (de) * 1994-01-20 1994-12-15 Wieland Werke Ag Gleitlager mit integrierter Lippendichtung

Also Published As

Publication number Publication date
DE4428603A1 (de) 1996-02-15
DE59503940D1 (de) 1998-11-19
US6123448A (en) 2000-09-26
EP0775017A1 (fr) 1997-05-28
WO1996004984A1 (fr) 1996-02-22
DK0775017T3 (da) 1999-06-23

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