EP1335790A1 - Dispositif permettant d'agiter un agent apte a l'ecoulement ou coulable, notamment un agent a haute viscosite - Google Patents

Dispositif permettant d'agiter un agent apte a l'ecoulement ou coulable, notamment un agent a haute viscosite

Info

Publication number
EP1335790A1
EP1335790A1 EP01997344A EP01997344A EP1335790A1 EP 1335790 A1 EP1335790 A1 EP 1335790A1 EP 01997344 A EP01997344 A EP 01997344A EP 01997344 A EP01997344 A EP 01997344A EP 1335790 A1 EP1335790 A1 EP 1335790A1
Authority
EP
European Patent Office
Prior art keywords
stirring
medium
stirring elements
spiral
elements
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.)
Granted
Application number
EP01997344A
Other languages
German (de)
English (en)
Other versions
EP1335790B1 (fr
Inventor
Hans Weber
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.)
Inotec GmbH Transport und Foerdersysteme
Inotec GmbH
Original Assignee
Inotec GmbH Transport und Foerdersysteme
Inotec 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 Inotec GmbH Transport und Foerdersysteme, Inotec GmbH filed Critical Inotec GmbH Transport und Foerdersysteme
Publication of EP1335790A1 publication Critical patent/EP1335790A1/fr
Application granted granted Critical
Publication of EP1335790B1 publication Critical patent/EP1335790B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • 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
    • B01F27/118—Stirrers in the form of brushes, sieves, grids, chains or springs
    • 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
    • B01F27/15—Stirrers with tubes for guiding the material

Definitions

  • the invention relates to a device for stirring a flowable or free-flowing medium, in particular a highly viscous medium, according to the preamble of claim 1.
  • the stirring device according to the invention can be used and is suitable for low to high viscosity fluids.
  • the particular area of application is for very highly viscous fluids.
  • the stirring device according to the invention is suitable for free-flowing solids.
  • the stirring device of the type specified is known from DE 39 01 894 C2.
  • This stirring device in particular for highly viscous media, has a container holding the medium, in which a rotatable shaft is arranged vertically. At the lower end of this shaft support arms go off approximately in the radial direction.
  • stirring elements at the front ends of these support arms. These are tubular in shape with a closed lateral surface, the end faces of the tube being open in each case. These tubular elements are conical over a partial length range, the end face with the larger cross section pointing in the circumferential direction.
  • the central axes of the stirring elements are inclined with respect to the plane of rotation.
  • the basic principle of this known stirring device is that the stirring elements are flowed through during the rotary movement of the shaft. Due to the inclination of the stirring elements, the medium in the container is set into a circular movement.
  • the invention is based on the object of further developing the stirring device of the type specified at the outset in such a way that even very highly viscous media can be stirred without any grafting forming in the stirring elements.
  • the stirrer according to the invention has a broader range of applications with regard to its mode of operation.
  • very highly viscous media can also be stirred with the stirring device according to the invention without the risk of plug formation.
  • the field of application of the stirring device according to the invention is therefore in particular in the area of higher-viscosity media.
  • Suspensions with very high solids contents as well as pasty media can also be processed very well with the stirring device, in a very product-friendly manner. This allows a very good stirring result to be achieved with very little energy consumption and with very short stirring phases, even in geometrically difficult containers, and in a way that is gentle on the product.
  • the stirring system With a low starting torque and low speed of the stirring elements, the stirring system produces excellent mixing effects even with laminar flow.
  • This mixing effect is essentially achieved by two flow components: on the one hand, a differential flow between the central inlet jet and the outer jet on the one hand, and the exit jet of the conical displacer on the other, and on the other hand through the radial flow passing through the openings, which is caused by the dynamic pressure in the displacer cone.
  • the medium in the main jet is thus conveyed upwards and tangentially to the container wall due to the inclination of the stirring elements.
  • the dynamic pressure in the conical stirring element results in a radial jet which is approximately at right angles to the displacement axis.
  • the stirring system according to the invention differs technically from the conventional stirring systems mainly in substantially lower circulation speeds and thus in a significantly lower power requirement, and this with higher stirring effectiveness. Due to the hydraulically generated swirls in different directions, the agitator rotation is also avoided, ie the power consumed is used exclusively to generate hydraulic swirls. Energy is not destroyed by elements that disturb the current.
  • the development according to claim 2 has the advantage that due to the rotational symmetry of the openings in the stirring elements, the radial flow takes place uniformly all around and thus also has a wide-ranging effect.
  • the openings are designed as slots in the jacket of the stirring elements, a large radial passage area is thereby created.
  • the slots can in particular be circumferential.
  • the development according to claim 4 suggests a preferred embodiment of the stirring elements and thus the openings.
  • the basic idea is to define the outer surface of the cone shape by means of a spiral helix (or helical spiral). This creates a very open structure, namely a spiral structure, through which plug formation can escape essentially radially through the spaces between the spiral windings.
  • this spiral-shaped stirring element is also technically very easy to produce.
  • the advantage of the development according to claim 5 is that this creates an optimal relationship between the axially continuous medium and the radially flowing medium.
  • the development according to claim 6 has the advantage that the unit consisting of the support arm and stirring element can be produced technically very simply from a single piece, namely a single wire, the thickness of the support arm being equal to the thickness of the spiral turns.
  • Figure 1 is a schematic representation of the stirring device with flow pattern.
  • FIG. 2 shows a plan view of the stirring device in FIG. 1;
  • Fig. 3 shows a longitudinal section through a stirring element in the to be stirred
  • FIG. 4 shows an end view of the stirring element in FIG. 3.
  • the stirring device has a cylindrical container 1.
  • a shaft 2 dips into the container 1 from above. This has at its upper end a coupling 3, which allows the connection of the shaft 2 to a drive motor, not shown.
  • the shaft 2 is arranged vertically. Likewise, it is also conceivable that the shaft 2 extends obliquely.
  • a stirring element 5 is arranged at the front end of each of the support arms 4.
  • the stirring elements 5 are formed by a helical spiral 6. This helical spiral 6 forms the outer surface of a truncated cone. The turns of the spiral 6 define openings 7 between them. The cone is open on each of the two end faces. As can be seen in FIG.
  • the central axis M of the spiral 6 is inclined with respect to the plane of rotation of the stirring elements 5 by the angle of inclination ⁇ .
  • the support arm 4 is formed in one piece with the spiral 6 of the associated stirring element 5.
  • the distances of the stirring elements 5 from the shaft 2 are the same, ie the four support arm / stirring element combinations are each identical.
  • the stirring device works as follows:
  • the stirring elements 5 are set into a rotary movement via the support arms 4.
  • the face with the larger cross-section points in the circumferential direction.
  • the mixing effect is essentially achieved by two flow components which are formed by the aforementioned flow components.
  • the second flow component is the radial flow V4, in that the back pressure prevailing in the spiral 6 leads the medium to the outside through the openings 7 between the spiral turns.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Dairy Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP01997344A 2000-11-23 2001-11-15 Dispositif permettant d'agiter un agent apte a l'ecoulement ou coulable, notamment un agent a haute viscosite Expired - Lifetime EP1335790B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20019941U DE20019941U1 (de) 2000-11-23 2000-11-23 Vorrichtung zum Rühren eines strömungsfähigen oder rieselfähigen Mediums, insbesondere eines hochviskosen Mediums
DE20019941U 2000-11-23
PCT/DE2001/004304 WO2002041982A1 (fr) 2000-11-23 2001-11-15 Dispositif permettant d'agiter un agent apte a l'ecoulement ou coulable, notamment un agent a haute viscosite

Publications (2)

Publication Number Publication Date
EP1335790A1 true EP1335790A1 (fr) 2003-08-20
EP1335790B1 EP1335790B1 (fr) 2004-07-28

Family

ID=7949230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01997344A Expired - Lifetime EP1335790B1 (fr) 2000-11-23 2001-11-15 Dispositif permettant d'agiter un agent apte a l'ecoulement ou coulable, notamment un agent a haute viscosite

Country Status (14)

Country Link
US (1) US6921194B2 (fr)
EP (1) EP1335790B1 (fr)
JP (1) JP4078601B2 (fr)
KR (1) KR100527256B1 (fr)
CN (1) CN1230244C (fr)
AT (1) ATE271916T1 (fr)
CA (1) CA2422173C (fr)
DE (2) DE20019941U1 (fr)
DK (1) DK1335790T3 (fr)
ES (1) ES2225648T3 (fr)
PL (1) PL198527B1 (fr)
PT (1) PT1335790E (fr)
TR (1) TR200402537T4 (fr)
WO (1) WO2002041982A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8439554B2 (en) * 2006-07-13 2013-05-14 Randy Kaas Whisk attachment
DE102008005017B3 (de) * 2008-01-17 2009-03-12 INOTEC GmbH Transport- und Fördersysteme Rührorgan und Rührwerk zum Mischen und/oder Homogenisieren strömungsfähiger Medien
KR101063705B1 (ko) 2008-12-01 2011-09-07 현대자동차주식회사 도료 믹싱장치
DE102008063393B3 (de) * 2008-12-30 2010-06-02 Martin Hirzel Bördelrührer
DE102009021079B3 (de) * 2009-05-13 2010-11-25 Schottmüller, Horst, Dipl.-Ing. (FH) Hohlkörperrührer
CA2761302C (fr) 2009-05-20 2019-04-23 Xyleco, Inc. Transformation de la biomasse
ITVI20100008A1 (it) * 2010-01-21 2011-07-22 Revelin Evaristo & Figli Snc Mescolatore perfezionato
DE102010049034B4 (de) * 2010-10-21 2012-11-22 VISCO JET Rührsysteme GmbH Rührorgan und Rührwerk zum Mischen und/oder Homogenisieren strömungsfähiger Medien
CN102091549B (zh) * 2010-12-24 2012-11-21 东莞徐记食品有限公司 一种混合搅拌机
DE102011015316B4 (de) 2011-03-28 2016-09-15 VISCO JET Rührsysteme GmbH Rührwerk zum Mischen und/oder Homogenisieren strömungsfähiger Medien
CN103170279A (zh) * 2013-03-27 2013-06-26 印峰 一种改进的搅拌机用搅拌叶片
FR3068618B1 (fr) * 2017-07-10 2022-01-28 Fillon Technologies Dispositif d'agitation de fluide equipe d'un tel dispositif d'agitation
PL234662B1 (pl) * 2018-01-03 2020-03-31 Maksymilian Mazur Mieszadło pionowe z dyszowymi wirującymi modułami mieszającymi
IT201800010111A1 (it) 2018-11-07 2020-05-07 Cosmec Costruzioni Mecc S R L Apparecchiatura per la miscelazione di fluidi
IT201800010095A1 (it) 2018-11-07 2020-05-07 Cosmec Costruzioni Mecc S R L Dispositivo di miscelazione di fluidi
US11000814B1 (en) * 2018-11-19 2021-05-11 Donald Wynn, Sr. Mixing apparatus with shafts of different lengths having circular members
JP7336024B2 (ja) * 2020-03-26 2023-08-30 富士フイルム株式会社 感放射線性樹脂組成物の製造方法、パターン形成方法

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Publication number Priority date Publication date Assignee Title
US195019A (en) * 1877-09-11 Improvement in dough-mixers
US64928A (en) * 1867-05-21 Pfers
US424108A (en) * 1890-03-25 Frank iiallam
US122075A (en) * 1871-12-19 Improvement in churn-dashers
DE604851C (de) 1934-10-30 Karl Wilh Danz Fa Vorrichtung zum Schlagen von Eiern und Sahne
US119193A (en) * 1871-09-19 Improvement in churns
US781917A (en) * 1904-03-30 1905-02-07 Harry Arthur Smith Egg-beater or cream-whipper.
US1223839A (en) * 1914-08-21 1917-04-24 William David Turner Egg-beater.
US1208862A (en) * 1916-08-21 1916-12-19 Velissar Velissarides Egg-beating implement.
US1779181A (en) * 1929-07-08 1930-10-21 Mcdonald Hugh Robert Rotor siphon for aerating liquid, etc.
DE1138378B (de) 1956-12-19 1962-10-25 Teerverwertung Gmbh Ruehrvorrichtung fuer breifoermige Kristallgemische
CH675215A5 (fr) * 1988-02-08 1990-09-14 Kurt Walter Wyss
SU1681930A1 (ru) * 1989-06-08 1991-10-07 Московский Институт Химического Машиностроения Устройство дл перемешивани
US5037210A (en) * 1989-06-21 1991-08-06 Turbomixer Corporation Multi-purpose mixing implement and method of mixing material
NL9100454A (nl) * 1991-03-14 1992-10-01 Tbma Europ Menginrichting.
RU2001765C1 (ru) * 1991-07-01 1993-10-30 Научно-технический кооператив "Млын" Рабочий орган смесител
US5908241A (en) * 1998-04-14 1999-06-01 Spyral Corporation Coil impeller mixing device

Non-Patent Citations (1)

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Title
See references of WO0241982A1 *

Also Published As

Publication number Publication date
US20040037163A1 (en) 2004-02-26
EP1335790B1 (fr) 2004-07-28
ES2225648T3 (es) 2005-03-16
PL198527B1 (pl) 2008-06-30
CA2422173C (fr) 2006-09-19
KR100527256B1 (ko) 2005-11-09
JP4078601B2 (ja) 2008-04-23
PL360080A1 (en) 2004-09-06
CN1466484A (zh) 2004-01-07
WO2002041982A1 (fr) 2002-05-30
ATE271916T1 (de) 2004-08-15
DE50103041D1 (de) 2004-09-02
CN1230244C (zh) 2005-12-07
DK1335790T3 (da) 2004-12-06
KR20030059123A (ko) 2003-07-07
DE20019941U1 (de) 2001-02-22
PT1335790E (pt) 2004-10-29
US6921194B2 (en) 2005-07-26
TR200402537T4 (tr) 2004-12-21
CA2422173A1 (fr) 2003-03-12
JP2004513776A (ja) 2004-05-13

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